• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    SELECTIVELY MOBILE VALVE ELEMENTS FOR ASPIRATION AND IRRIGATION CIRCUITS. Various fluid system arrangements are disclosed. In one arrangement, a suction circuit for a fluidic system is disclosed which selectively controls suction. The suction circuit comprises a suction line operatively connected to a surgical instrument, a suction exhaust line operatively connected to a waste receptacle; a suction ventilation line connected to a first end on a suction line; and a selectively variable ventilation valve operatively connected to the suction ventilation line. The variable ventilation valve can be selectively moved to vary the suction pressure within the suction line. Other fluidic systems are disclosed that include a selectively positionable irrigation valve that can also be incorporated into a fluidic system that includes a pressure valve. variable aperture.
    公开号:BR112014013812B1
    申请号:R112014013812-5
    申请日:2012-11-27
    公开日:2020-11-24
    发明作者:Mel Matthew Oliveira；Gary P. Sorensen；Michael D. Morgan
    申请人:Alcon Research, Llc；
    IPC主号:
    专利说明:

    Priority claim
    [001] This application claims the benefit of the priority of Provisional Patent Application.US. Serial No. 61 / 568.220 entitled "Selectively mobile valve elements for suction and irrigation circuits", filed on December 8, 2011, whose inventors are Gary P. Sorensen, Michael D. Morgan and Mel M. Oliveira, which for this is incorporated by reference, in its entirety as if fully and completely established in this document. TECHNICAL FIELD
    [002] The present disclosure generally refers to surgical methods and systems. More specifically, the present disclosure relates to systems and methods for controlling fluid flow in suction and / or irrigation circuits during a surgical procedure using one or more selectively mobile valve elements. BACKGROUND
    [003] The human eye works to provide vision by transmitting light through a clear outer portion called the cornea and focusing on the image through the lens on the retina. The quality of the focused image depends on many factors, including the size and shape of the eye and the transparency of the cornea and lens.
    [004] When age or illness causes the lens to become less transparent, vision deteriorates because of diminished light, which can be transmitted to the retina. This deficiency in the lens of the eye is known as a cataract. Ophthalmic surgery is required to treat this condition. More specifically, surgical removal of the deteriorated lens and replacement with an artificial intraocular lens (IOL).
    [005] A known technique for removing cataract lenses is phacoemulsification. During this procedure, a fine phacoemulsification cutting tip is inserted into the diseased lens and vibrated by ultrasound. The vibrant cutting tip liquefies or emulsifies the lens so that the diseased lens can be aspirated out of the eye. Once removed, an artificial lens is inserted into it.
    [006] A typical ultrasonic surgical device suitable for ophthalmic procedures includes an ultrasound-guided tool, an attached cutting tip, an irrigation sleeve and an electronic control console. The utensil assembly is attached to the control console by an electrical cable and flexible tubing. Through the electric cable, the console varies the power level transmitted by the tool to the attached cutting tip and the flexible tube feeds irrigation fluid to and removes aspiration fluid from the eye through tool mounting.
    [007] The operative part of the tool includes a hollow resonance bar or horn directly attached to a set of piezoelectric crystals. The crystals feed the required ultrasonic vibration required to drive both the horn and the cutting tip attached during phacoemulsification and are controlled by the console. The crystal / horn assembly is suspended within the hollow body or shell of the utensil. The utensil body ends in a small diameter portion or front cone protector at the distal end of the body. The protective front cone accepts the irrigation sleeve. Likewise, the horn hole receives the cutting tip. The cutting tip is adjusted so that the tip protrudes only a predetermined amount after the open end of the irrigation sleeve
    [008] In use, the ends of the cutting tip and irrigation sleeve are inserted into a small incision of predetermined size in the cornea, sclera or other location of the eye. The cutting tip is ultrasonically vibrated along the longitudinal axis inside the irrigation glove by the crystal ultrasonic horn directed, thus emulsifying the selected tissue on the spot. A hollow hole in the cutting tip communicates with the hole in the horn, which in turn communicates with the suction line from the tool to the console. A reduced pressure or vacuum source in the console extracts or aspirates the emulsified tissue from the eye through the open end of the cutting tip, through the cutting tip and horn holes and through the suction line, in a collection device. The aspiration of emulsified tissue is aided by a flush or irrigating saline solution that is injected into the surgical site through a small annular space between the inner surface of the irrigation sleeve and the cutting tip.
    [009] Known phacoemulsification systems can also use a surgical cassette to provide a variety of functions for in vitro retinal surgical procedures to assist with effectively managing irrigation and aspiration flows in and out of the surgical site through the surgical device. More specifically, the cassette acts as the interface between the surgical instrumentation and the patient and provides pressurized flows of irrigation and aspiration in and out of the eye. A variety of pumping systems have been used in connection with a surgical cassette in fluid systems for cataract surgery, including positive displacement systems (most commonly, peristaltic pumps) and vacuum based on suction sources. A peristaltic system uses a series of rollers acting on an elastomeric conduit to create flow in the direction of rotation, while vacuum-based systems employ a vacuum source, typically applied to the suction flow through an air-liquid interface.
    [0010] During surgical procedures, the resonating, hollow tip may become blocked with tissue. In such an instance, vacuum can build up in the suction line downstream of occlusion. When the occlusion eventually breaks down, this suppressed vacuum can, depending on the vacuum level and the amount of suction path compliance, extract a significant amount of fluid from the eye, thereby increasing the risk of a shallow anterior chamber or collapse. This situation is commonly referred to as an occlusion interval outbreak.
    [0011] To resolve this concern, surgical consoles are configured with sensors on the suction path to enable detection of vacuum level and vacuum limitation by the system to a predetermined maximum level. While limiting the maximum vacuum level in such a way can be effective in reducing the potential magnitude of an occlusion-breaking outbreak, such limitations on the maximum vacuum level can reduce the effectiveness of lens removal and overall increase in surgical time. In some systems, an audible indication of relative vacuum level and / or vacuum reaching the pre-defined user limit can be provided so that the surgeon can take appropriate precautions.
    [0012] For example, in some systems, vacuum is commonly relieved with a command from the surgeon to open a ventilation valve that connects the suction line to a pressure source that is maintained at or above atmospheric pressure. Depending on the system, this can be the irrigation line, the pump exhaust line or a line connected to atmospheric air (air ventilation system). However, there are some concerns with known ventilation valves. First, known ventilation valves are only configured for simple "on / off action. For example, tight tube valves or elastomer dome type valves can provide on / off control. of satisfactory fluid flow, but do not exhibit consistent variable flow characteristics, so this type of valve has a very sharp surge recovery curve. In addition, the configuration of dome-type valves can also present operational challenges. , the operation of the valve is highly dependent on the elastomeric material to obtain its own seating position, so consistency of the material is very important. In addition, the flow through the valve can also become clogged by debris if the opening formed by the elastomer is In addition, such a configuration can undesirably trap air bubbles. Use of these types of valves s is also limited in that due to the nature of the on / off flow control limitation, an array of valves is required to withstand direct fluid flow from one circuit to another.
    [0013] Alternatively, vacuum can be reduced or relieved by reversing the pump rotation in positive displacement systems. While it is known to employ a system having bidirectional pump rotation to enable pressure / vacuum level control, based on user input and return of a pressure sensor in the suction line as a system requires rapid acceleration and deceleration of the mass of pump head. This can limit response time and cause reprehensible acoustic noise.
    [0014] Known cassettes used with consoles also enable the suction line to be ventilated, to the atmosphere or to a liquid, in order to reduce or eliminate a vacuum surge about occlusion pause. State of the art of air ventilated cassettes enables ambient air to enter the suction line, however, air ventilation in the suction line changes the fluidic performance of the suction system, greatly increasing the compliance of the suction path. Increased compliance can significantly increase the magnitude of the occlusion interval outbreak and also negatively affect system response. Liquid ventilation systems enable irrigation fluid to bleed in the suction line, thus reducing any impact on the fluidic performance of the suction system. When higher suction vacuums are used, cassettes that ventilate the suction line to the irrigation line can cause high pressure surges in the irrigation line. Other systems provide a separate source of irrigation fluid to ventilate the suction line, requiring the use of two sources of irrigation fluid and increasing the cost and complexity of the system. BRIEF SUMMARY
    [0015] Various arrangements of fluidic systems are disclosed. In an exemplary arrangement, a suction circuit for a fluid system is proposed that selectively controls suction. For example, an exemplary suction circuit comprises a suction line operatively connected to a surgical instrument, a suction exhaust line operatively connected to a waste receptacle; a suction ventilation line connected to a first end for the suction line; and a selectively variable ventilation valve operatively connected to the suction ventilation line. The variable ventilation valve can be selectively actuated to vary the suction pressure within the suction line. In another exemplary arrangement, the variable ventilation valve is configured as a multi-purpose valve that can vary suction pressure and selectively interrupt the flow of irrigation fluid. In yet another exemplary arrangement, the variable ventilation valve is configured as a multi-purpose valve that can vary suction pressure, as well as direct suction from or a displacement-based and / or vacuum-based suction source. BRIEF DESCRIPTION OF THE FIGURES
    [0016] Exemplary modalities of the present disclosure will now be described by way of example, in more detail with reference to the attached figures, in which:
    [0017] FIG. 1 is a cross-sectional view of an exemplary arrangement of a peristaltic pump used in a phacoemulsification machine for ophthalmic procedures.
    [0018] FIG. 2 is a perspective view of a surgical console that can be used on a phaco machine.
    [0019] FIG. 3 is a schematic diagram of an exemplary arrangement of a phaco fluid system for a phacoemulsification machine having a selectively variable ventilation valve arranged between a suction line and a suction exhaust line.
    [0020] FIG. 4 is a cross-sectional view of an exemplary configuration of a variable ventilation valve for use in a phaco fluid system.
    [0021] FIG. 5 is a schematic diagram of an exemplary arrangement of a phaco fluid system for a phacoemulsification machine having a selectively variable ventilation valve arranged between a suction line and an aspiration and atmosphere exhaust line.
    [0022] FIG. 6 is a schematic diagram of an exemplary arrangement of a phaco fluid system for a phacoemulsification machine having a selectively variable vent valve arranged between a suction line and a suction exhaust line and a source of ventilation pressure.
    [0023] FIG. 7 is a schematic diagram of an exemplary arrangement of a phaco fluid system for a phacoemulsification machine having a selectively variable ventilation valve arranged between a suction line and an irrigation line.
    [0024] FIG. 8 is a schematic diagram of an exemplary arrangement of a phaco fluid system for a phacoemulsification machine having a selectively variable ventilation valve disposed between a suction line and a suction exhaust line, and a multiposition irrigation valve.
    [0025] FIG. 9A is a cross-sectional view of a variable irrigation valve for use in the phaco fluid system of FIG. 8.
    [0026] FIG. 9B is a cross-sectional view of an exemplary alternative irrigation valve for use in a phaco fluid system.
    [0027] FIG. 10A is a schematic diagram of an exemplary arrangement of a phaco fluid system for a phacoemulsification machine incorporating the FIG multiposition irrigation valve. 9B in an 'off position.
    [0028] FIG. 10B is a schematic diagram of an exemplary arrangement of a phaco fluid system for a phacoemulsification machine incorporating the multi-position irrigation valve of FIG. 9B in an "irrigation" position.
    [0029] FIG. 10C is a schematic diagram of an exemplary arrangement of a phaco fluid system for a phacoemulsification machine incorporating the FIG multiposition irrigation valve. 9B in a "bypass" position.
    [0030] FIG. 11 is a schematic diagram of an exemplary arrangement of a phaco fluid system for a phacoemulsification machine having a multipurpose valve arranged between a suction line and an irrigation line.
    [0031] FIG. 12A is a partially exploded perspective view of an exemplary multipurpose valve and a surgical cassette for use in the phaco fluid system of FIG. 11.
    [0032] FIG. 12B is a cross-sectional view of the multipurpose valve taken along lines 12B-12B in FIG. 12A.
    [0033] FIG. 13 is a partial schematic diagram of a suction circuit for an exemplary arrangement of a phaco fluid system that employs a multi-suction pump system using both peristaltic and venturi pump systems.
    [0034] FIG. 14A is a schematic diagram of an exemplary configuration of a multipurpose valve in a fully open position between the suction line and a pump inlet port, such that the complete vacuum pressure is delivered through the suction line to the tool.
    [0035] FIG. 14B is a schematic diagram of the multipurpose valve in an open opposition partially between the suction line and the suction exhaust line, as well as between the suction line and a pump inlet port.
    [0036] FIG. 14C is a schematic diagram of the multipurpose valve in the fully open position with the venturi reservoir such that suction is directed from it. DETAILED DESCRIPTION
    [0037] Referring now to the discussion that follows and also to the figures, illustrative approaches to the devices and methods disclosed are shown in detail. Although the figures represent some possible approaches, the figures are not necessarily to scale and certain characteristics may be exaggerated, removed or partially sectioned to better illustrate and explain the present disclosure. In addition, the set of descriptions set out below in this document is not intended to be exhaustive or otherwise limit or restrict claims to the precise formats with the configurations shown in the drawings and disclosed in the following detailed description.
    [0038] Phacoemulsification machines are typically used in cataract eye surgery to remove lenses from cataract-affected eyes, such machines typically employ fluidic systems to introduce irrigating fluid into the surgical site, as well as providing aspiration from the surgical site to remove emulsified tissue. . In some known systems, a positive displacement system, such as a pump, is employed to provide appropriate suction. Referring to Fig. 1, an exemplary arrangement of a 20 µm pump for a phacoemulsification system is shown. Pump 20 includes a pump motor 22 and a roller head 24 containing one or more rolls 26. Pump 20 can be used in combination with a cassette 28 having an elastomeric sheet 30 applied to the outside of a relatively rigid body or substrate 32. Motor Pump 22 can be a stepper or DC auxiliary motor. Roller head 24 is attached to a pump motor rod 34 34 such that pump motor 22 rotates roller head 24 in a plane generally perpendicular to the shaft AA of rod 34. Rod 34 can also contain a Rod position encoder 36 .
    [0039] Sheet 30 of cassette 28 contains a fluid channel 38 that can be molded into it, channel 38 being configured to be generally planar and arched (within the plane). Fluid channel 38 has roller radius 26 on stem 34.
    [0040] Cassette 28 is designed to be mounted on a cassette receiver 36 on a console 40 (as shown in FIG. 2). Cassette 28 operatively couples console 40 to an appliance 42 (an exemplary schematic arrangement of appliance 42 is shown in FIG. 3). Utensil 42 generally includes an infusion sleeve 44 and a tip member 46, whereby tip member 46 is positioned coaxially within the infusion sleeve 44. Tip member 46 is configured for insertion into one eye, 47. Infusion sleeve 44 allows irrigation fluid to flow from console 40 and / or cassette 28 into the eye. Aspiration fluid can also be removed through a lumen of tip member 46, with console 40 and cassette 28 generally providing aspiration / vacuum to tip member 46. Collectively, the irrigation and aspiration functions of the phacoemulsification system 10 are hereby referred to as a phaco fluid system 11.
    [0041] Referring now to FIG. 3, an exemplary phaco fluid system 11 will be described for use with a positive displacement system (i.e., pump 20). Infusion sleeve 44 of utensil 42 is connected to an irrigation source 48, which contains an irrigation fluid, through the appropriate tubing (i.e., irrigation line 50). In an exemplary arrangement, irrigation source 48 may be a source of pressurized irrigation (for example, an irrigation fluid bag that is selectively compacted to deliver irrigation fluid to an irrigation supply line). Nib 46 is connected to an inlet port 53 of a pump, such as pump 20, by a suitable pipe length (i.e., suction line 52).
    [0042] A suction exhaust line 54 extends from pump 20. In an exemplary arrangement, suction exhaust line 54 is fluidly connected to a drain line reservoir 56. Reservoir 56 can also drain into a bag optional drain line 58. Alternatively, as shown in the spectrum, exhaust line 54 'can be fluidly connected directly to drain bag 58.
    [0043] A suction ventilation line 60 is fluidly connected between a suction line 52 and suction exhaust line 54. Ventilation line 60 is configured as a bypass circuit. A ventilation valve 62, to be discussed in more detail below, is fluidly connected to the suction ventilation line 60 in order to selectively control the suction pressure within the suction line 52. A pressure sensor 63 is also in fluid communication with suction line 52 to detect suction pressure within suction line 52. Pressure sensor 63 is also operatively connected to a console control system 40. The control system can be configured to provide suction pressure levels predefined for fluid system 11, as will be explained in more detail below.
    [0044] As described above, irrigation source 48, which can be pressurized, is fluidly connected to utensil 42 by irrigation line 50. An irrigation valve 64 is fluidly connected to and positioned between irrigation line 50 and infusion sleeve 44 Irrigation valve 64 provides selective on / off irrigation fluid control in irrigation line 50.
    [0045] Vent valve 62 is configured to provide a variable orifice size within vent line 60 to selectively modulate suction within suction line 52. More specifically, use of a variable vent valve 62 enables unidirectional pump rotation 20 in a first direction to generate flow / vacuum, allowing a mechanism to dynamically control suction pressure for utensil 42. In an exemplary ventilation valve 62 it can be configured as a multi-position rotary valve that would allow predictable and precise control of the size of the orifice with base in angular position of ventilation valve 62, within ventilation line 60.
    [0046] An exemplary configuration of ventilation valve 62 is shown in FIG. 4. In FIG. 4, in an exemplary configuration, multiposition vent valve 62 includes a channel 66 defined by first and second openings 68 and 69. While channel 66 is shown in FIG. 4 as being generally uniformly sized from first opening 68 to second opening 69, it is understood that channel 66 can be configured with a variable size. For example, first 68 and second openings 69 can be configured with a diameter that is larger than a central portion of channel 66 such that first and second openings 68 and 69 widen outwardly towards a vent valve periphery 70.
    [0047] In operation, ventilation valve 62 is selectively rotatable in a suction circuit, such that the angular position of channel 68 is selectively movable within ventilation line 60. Such movement can complete opening, partially occlude and / or completely occlude , first and second opening 68 and 69, in order to selectively control the suction pressure within the suction line 52.
    [0048] Pressure sensor 63 is operatively connected to a control system mounted on console 40. Pressure sensor 63 detects and communicates pressure changes in suction line 52 during operation of the phacoemulsification machine. In an exemplary configuration, predetermined pressure thresholds can be set within the control system such that when pressure readings from pressure sensor 63 exceed those thresholds, the control system can selectively modify the suction pressure within the suction line 52. For example, if pressure sensor 63 detects that the suction pressure has exceeded the predetermined pressure threshold, console 40 triggers ventilation valve movement 62 within the ventilation line 60 by a predetermined amount to allow suction line ventilation 52 enough to release the suction pressure below the pre-established threshold. Thus, pressure sensor 63, ventilation valve 62 and the pressure sensor control system cooperate to allow real-time modulation of suction within the suction line 52 which allows a higher level of maximum suction to be used, but still provides Effective occlusion breakouts.
    [0049] For example, referring back to FIG. 3, channel 66 of vent valve 62 is positioned such that the first and second openings 68 and 69 are positioned out of alignment with vent line 60. In this position, vent valve 62 is in the "fully closed" position in this way blocking vent line 60 and providing unimpeded suction pressure for suction line 52. If pressure sensor 63 detects that suction pressure has increased within suction line 52 above the threshold level, ventilation valve 62 can be selectively moved by a predetermined amount, in order to move first and second openings 68 and 69 in at least partial alignment, thereby partially opening the suction exhaust line 54/54 This action quickly and effectively restores the suction pressure within the suction line 52 to an acceptable predetermined amount, without requiring pump reversal. However, it is understood that, due to the configuration of channel 66, a variety of suction pressures can be achieved by the selective movement of the ventilation valve 62.
    [0050] Vent valve 62 is operatively connected to an actuator, such as a motor 71, having an angular position encoder (such as encoder 36). Such an exemplary motor 71 includes a stepper motor. When pressure sensor 63 detects that suction pressure has exceeded a predetermined threshold, the controller can automatically operate motor 71 to rotate ventilation valve 62 to a predetermined angular position, thereby quickly changing suction pressure within suction line 52. Additionally, the controller, in cooperation with a pressure sensor positioned on an irrigation line 50, can be configured to detect and minimize a start of occlusion breaking. More specifically, ventilation valve 62 can be automatically rotated by motor 71 for reduced suction pressure within suction line 52. This function would operate to lessen an effect of a secondary occlusion break outbreak. Because ventilation valve 62 allows selective and dynamic control of suction levels within suction line 52, vacuum levels can be easily modulated to the user's preference, thereby providing faster and more efficient lens removal.
    [0051] Referring now to FIG. 5, components of an exemplary phaco fluid system alternative 100 for use with a positive displacement pumping system are shown. Phaco fluid system 100 includes many of the same components as shown and described above in connection with FIG. 3. In that sense, as components the same reference numbers were given. For a description of those components, reference is made to the above discussion with respect to FIG. 3.
    [0052] In phaco fluid system 100, an aspiration exhaust line 54 'extends from pump 20 and is fluidly connected to a drain bag 58. Alternatively, as shown in FIG. 3, phaco fluid system 100, may include a suction exhaust line 54 which is fluidly connected to a drain line reservoir.
    [0053] A suction ventilation line 160 is fluidly connected between a suction line 52 and atmosphere 102. A variable ventilation valve 62 is fluidly connected to suction ventilation line 160 in order to selectively control the suction pressure within the suction line 52. Pressure sensor 63 is also in fluid communication with suction line 52.
    [0054] As discussed above, ventilation valve 62 is configured to provide a variable orifice size to selectively modulate vacuum, thereby allowing unidirectional rotation of pump 20 to generate flow / vacuum, while allowing selective control of aspiration / vacuum to utensil 42 based on angular position of ventilation valve 62. ventilation valve 62 is configured to be selectively rotatable to dynamically control suction within the suction line 52.
    [0055] As discussed above, in operation, pressure sensor 63 is operatively connected to a control system mounted on console 40. Pressure sensor 63 detects and communicates pressure changes in suction line 52 during operation of the phacoemulsification machine. In an exemplary configuration, predetermined pressure thresholds are defined by users within the control system. Accordingly, when pressure sensor 63 detects a suction pressure level that exceeds the pre-established thresholds, the control system moves the ventilation valve 62 by a predetermined amount to reduce the suction pressure within the suction line 52 by positioning channel 66 in the valve. vent 62, in communication, at least partial with atmosphere 102. It is also understood that that ventilation valve 62 can be fully opened to atmosphere 102 to effectively fully suction line 52. It is also understood that ventilation valve 62 can be selectively moved to fully close ventilation line 160 to atmosphere 102, thereby effectively providing complete suction / vacuum pressure in suction line 52 of tip member 46. Vent valve movement 62 to selectively adjust the suction pressure vacuum line 52 can be accomplished either manually (for example, selective a foot switch pedal based on previous user settings) or automatically by engine 71 that is operatively connected to the control system.
    [0056] Referring now to FIG. 6, components of another phaco fluid system alternative 200 for use with a positive displacement pumping system are shown. Phaco fluid system 200 includes many of the same components as shown and described above in connection with FIGS. 3 and 5. In this sense, the same reference numbers were given as components. For a detailed discussion of those components, reference is made to the above discussion with respect to FIG. 3.
    [0057] A suction ventilation line 260 is fluidly connected between a suction line 52 and a ventilation pressure source 202. Examples of sources of suitable ventilation pressure include, but are not limited to, a pressurized or saline fluid. Variable ventilation valve 62 is fluidly connected to the suction ventilation line 260 in order to selectively control the suction pressure within the suction line 52. Pressure sensor 63 is also in fluid communication with the suction line 52.
    [0058] Vent valve 62 is configured to provide a variable orifice size to selectively modulate vacuum, thereby allowing unidirectional rotation of the pump 20 in a first direction to generate flow / vacuum, while allowing selective suction / vacuum control for utensil 42 based on the angular position of the ventilation valve 62.
    [0059] Pressure sensor 63 is operatively connected to a control system mounted on console 40 and detects and communicates pressure changes in suction line 52 during operation of the phacoemulsification machine. In an exemplary configuration, predetermined pressure thresholds are defined within the control system such that when pressure readings from pressure sensor 63 exceed those thresholds, vent valve 62 is moved by a predetermined amount to reduce in-line suction pressure suction line 52. This is accomplished by positioning channel 66 on ventilation valve 62, at least in partial communication, with a ventilation pressure source 202, thus opening ventilation line 260, and allowing pressurized fluid (for example) to enter line suction line 52. Motor 71 can be operatively connected to ventilation valve 62 to automatically move ventilation valve 62 by a predetermined amount to automatically control the suction pressure / vacuum level in suction line 52 based on information received from sensor 63. It is also understood that ventilation valve 62 can be fully opened for a pressure source of v entilation 202 to effectively negate suction pressure in suction line 52, without having to interrupt pump 20 operation. Alternatively, it is also understood that ventilation valve 62 can be completely closed, that is, channel 66 being positioned completely out of alignment with ventilation line 260, such that ventilation pressure source 202 is not in communication with ventilation line 260. This configuration effectively provides full suction / vacuum pressure in suction line 52 for tip member 46.
    [0060] Referring now to FIG. 7, components of yet another alternative phaco fluid system 300 for use with a positive displacement pumping system are shown. Phaco fluid system 300 includes many of the same components as shown and described above in connection with FIGS. 3 and 5-6. In this sense, as components the same reference numbers were given. For a detailed discussion of those components, reference is made to the above discussion with respect to FIG. 3.
    [0061] A suction ventilation line 360 is fluidly connected between a suction line 52 and irrigation line 50. Variable ventilation valve 62 is fluidly connected to suction ventilation line 360 in order to selectively control suction pressure within suction line 52. A pressure sensor 63 is also in fluid communication with suction line 52.
    [0062] Vent valve 62 is configured to provide a variable orifice size for selectively modulating vacuum, thereby allowing unidirectional rotation of the pump 20 in a first direction to generate flow / vacuum, while allowing selective suction / vacuum control for utensil 42 based on the angular position of the ventilation valve 62.
    [0063] Pressure sensor 63 is operatively connected to a control system mounted on console 40 and detects and communicates pressure changes in suction line 52 during operation of the phacoemulsification machine. In an exemplary configuration, predetermined pressure thresholds are defined within the control system such that when pressure readings from pressure sensor 63 exceed those thresholds, vent valve 62 can be selectively moved by a predetermined amount to reduce, for example, suction pressure within suction line 52. For example, channel 66 in vent valve 62 is moved in order to be at least in partial alignment with ventilation line 360, thereby placing suction line 52 in at least partial communication with irrigation line 50 for a predetermined amount to automatically control the suction pressure / vacuum level in suction line 52 based on information received from sensor 63. It is understood that ventilation valve 62 can be fully opened for irrigation line 50 for effectively deny suction pressure in suction line 52. Alternatively, it is also understood that valves the vent 62 can be positioned to fully close the vent line 50, thereby providing complete suction / vacuum pressure in the suction line 52 for the tip member 46. In such a configuration, channel 66 is fully aligned with the ventilation line 360 .
    [0064] Referring now to FIG. 8, components of yet another alternative phaco fluid system 400 for use with a positive displacement pumping system are shown. Phaco fluid system 400 includes many of the same components as shown and described above in connection with FIGS. 3, and 5-7.
    [0065] Phaco fluid system 400 includes infusion sleeve 44 of utensil 42 that is connected to an irrigation source 448 per irrigation line 50. Phaco fluid system 400 may also include a multiposition irrigation valve 464 which is fluidly connected and positioned at a three-way junction between an irrigation supply line 473, irrigation line 50 and a diversion line 476. An irrigation line pressure sensor 475 can be positioned on irrigation line 50 between irrigation line deviation 476 and infusion gauge 42. Utensil 42 can also be provided with a Utensil Pressure Sensor 443.
    [0066] While irrigation source 448 can be any suitable irrigation source, in an exemplary arrangement, irrigation source 448 is pressurized. More specifically, an irrigation bag 449 can be provided that is positioned against a platform 451 and a pressurizing force, represented by arrows 453, is applied to the irrigation bag 449 in order to force infusion fluid out of irrigation bag 449 and into the irrigation supply line 473. Other pressurized fluid systems are also contemplated.
    [0067] Tip member 46 is connected to the inlet port 53 of a peristaltic pump 420 per suction line 52. While any suitable pump arrangement can be used, in an exemplary configuration, pump 420 is a pump, as described in EU Patent Application Publication 0 20100286651, entitled "Multiple Segmented Peristaltic Pump and Cassette" or a pump as described in EU Patent no. 6,962,488, entitled "Surgical Cassette having an Aspirating Pressure Sensor, the contents of both of which are incorporated by reference, in their entirety. Suction exhaust line 54 extends from pump 420 and is fluidly connected to a ventilation reservoir 456. Ventilation reservoir 546 is fluidly connected to a drain bag 58.
    [0068] A suction ventilation line 460 is fluidly connected between suction line 52 ventilation reservoir 456 as well as the bypass pump 420. Variable ventilation valve 62 is fluidly connected to suction ventilation line 460 in order to control selectively suction pressure within suction line 52.A suction pressure sensor 63 is also in fluid communication with suction line 52. Vent valve 62 is configured to provide a variable orifice size within ventilation line 460 to modulate selectively vacuum, thereby allowing unidirectional rotation of pump 420 in a first direction to generate flow / vacuum, while allowing selective control of suction / vacuum for appliance 42 based on the angular position of the ventilation valve 62.
    [0069] In operation, pressure sensor 63 is operatively connected to a control system mounted on console 40. Pressure sensor 63 detects and communicates pressure changes in suction line 52 during operation of the phacoemulsification machine. In an exemplary configuration, predetermined pressure thresholds are defined within the control system such that when pressure readings from pressure sensor 63 exceed those thresholds, vent valve 62 can be selectively moved by a predetermined amount to reduce the suction pressure within of suction line 52. This is accomplished by placing channel 66 in ventilation valve 62, in at least partial communication with ventilation line 460. Because ventilation line 460 is operatively connected to ventilation reservoir 456, partial communication of the channel 66 with ventilation line 460 effectively reduces suction pressure within suction line 52. Movement of ventilation valve 62 can be accomplished by motor 71 which is connected to ventilation valve 62. More specifically, motor 71 can be configured to automatically move ventilation valve 62 for a predetermined amount to automatically control the level l suction pressure / vacuum in suction line 52 based on information received from sensor 63. It is understood that ventilation valve 62 can be oriented to a fully open position to fully ventilate suction line to ventilation reservoir 456 for effectively close inlet port 53 for pump 420. Alternatively, it is also understood that ventilation valve 62 can be fully closed, that is, such that channel 66 is out of alignment with ventilation line 460, thus closing ventilation reservoir 456 for suction line 52, effectively providing complete suction / vacuum pressure in suction line 52 of tip member 46.
    [0070] As stated above, phaco fluid system 400 also provides a multiposition irrigation valve 464 that is positioned at a junction of irrigation feed line 473, irrigation line 50 and bypass line 476. As explained in further detail below, irrigation valve 464 is configured as a rotary valve that can be operatively positioned to selectively control irrigation in phaco fluid system 400. As shown in FIG. 9A, in an exemplary arrangement, multiposition irrigation valve 464 includes an intersection channel configuration 474. More specifically, channel 474 includes a first branch 474A, a second branch 474B and a third branch 474 C. While shown as having a T-shaped configuration, it is understood that other intersecting configurations can be used, depending on the configuration of the various fluid lines in fluid system 400.
    [0071] In operation, as shown in FIG. 8, when irrigation valve 464 is oriented that first branch 474A is fully aligned with irrigation feed line 473 and third branch 474B is fully aligned with branch products 50, but second branch 474C is oriented out of alignment with bypass line 476, normal, complete irrigation flow is provided for irrigation line 50. However, for prime irrigation source 448 of phaco fluid system 400, irrigation valve 464 can be selectively rotated such that first branch 474A is fully aligned with line bypass 476 and third branch 474C is fully aligned with irrigation feed line 473. In this sense, when phaco fluid system 400 is operated, irrigation feed fluid 448 is directed to empty drain bag 58. For pressure sensor primary irrigation valve 475, irrigation valve 464 can be selectively rotated such that according to arm the 474B is fully aligned with the diversion line 476 and the third arm 474C is fully aligned with the irrigation line 50.
    [0072] While the various branches of irrigation valve 464 shown in FIG. 8 has been described as operating in order to be fully aligned with any irrigation line 50, bypass line 476 and irrigation supply line 473, it is also understood that branches 474a-474c do not need to be fully aligned with the respective lines 50 , 476 and 473. In fact, irrigation valve 464 can be configured to be selectively positioned in order to effectively control the amount of fluid to be delivered to eye 47. In fact, in some patients, a complete irrigation flow (such as shown in FIG. 8), can lead to patient discomfort, while a controlled opening whereby certain branches of irrigation valve 464 are positioned at various angular positions with respect to irrigation line 50 may be desirable. Thus, similar to ventilation valve 62, irrigation valve 464 can also be configured to deliver variable irrigation.
    [0073] Another alternative configuration for a multiposition irrigation valve is shown in FIG. 9B.In this arrangement, a 464 'multiposition irrigation valve is provided having an L-shaped path formed thereon. The 464' multiposition irrigation valve includes a first branch 474A 'and a second branch 474B'. multiposition irrigation system 464 'will be described below in connection with FIGS. 10A-10C.
    [0074] With reference to FIGS. 10A-10C, components of another exemplary phaco fluid system alternative 400 'for use with a positive displacement pumping system is shown. Phaco fluid system 400 'includes many of the same components as shown and described above in connection with FIGS. 3 and 5-8. In some embodiments, the components inside the dashed box can at least partially be included in a fluidic cassette configured to be attached to a surgical console.
    [0075] Phaco fluid system 400 'includes infusion sleeve 44 of utensil 42 that is connected to an irrigation source 448 per irrigation line 50. A multiposition irrigation valve 464' that is fluidly connected and positioned at a junction three-way between an irrigation feed line 473, irrigation line 50 and a bypass line 476. An irrigation line pressure sensor 475 can be positioned on irrigation line 50 between irrigation feed 448 and utensil 42. While irrigation source 448 can be any suitable irrigation source, in an exemplary arrangement, irrigation source 448 includes an irrigation container that uses gravity to force infusion fluid out of the irrigation container and into the 473 irrigation power line.
    [0076] 464 'multiposition irrigation valve can be configured as a rotary valve that can be operatively positioned to selectively control irrigation in phaco fluid system 400'. Therefore, in operation, as shown in FIG. 10A, when irrigation valve 464 'is oriented such that first branch 474A' is fully aligned with irrigation line 50 and second branch 474B 'is oriented in order to be out of alignment with irrigation feed line 473 and bypass line 476 , no irrigation is fed to irrigation line 50.
    [0077] Referring now to FIG. 10B, apply irrigation to utensil 42, irrigation valve 464 'can be selectively rotated such that first branch 474A' is fully aligned with irrigation feed line 473 and second branch 474B 'is partially aligned with irrigation line 50. In that sense, irrigation feed fluid 448 is directed through irrigation feed line 473, irrigation line 50 via irrigation valve 464 'and to tool 42. As with irrigation valve 464, it may be desirable to selectively position first and second branches 474A 'and 474B' in order to effectively control the amount of fluid to be delivered to eye 47. Thus, it is contemplated that irrigation line 50 may be subject to a controlled opening with irrigation supply line 473, thus first and second branches 474A 'and 474B' of irrigation valve 464 'are positioned in various angular positions to provide less than flow complete irrigation via irrigation line 50. Thus, similar to ventilation valve 62, irrigation valve 464 'can also be configured to deliver variable irrigation.
    [0078] FIG. 10C illustrates a priming operation for irrigation feed 448 of phaco fluid system 400 'by actuation of irrigation valve 464'. More specifically, irrigation valve 464 'can be selectively rotated such that first branch 474A' is at least partially aligned with bypass line 476 and second branch 474B 'is at least partially aligned with irrigation supply line 473. In that sense, when phaco fluid system 400 is operated, irrigation feed fluid 448 is directed to empty drain bag 58.
    [0079] While multiposition irrigation valves 464 and 464 'both have been described in connection with a phaco fluid system 400 that also incorporates a variable ventilation valve of 62, it is understood that the scope of this disclosure is not limited to a phaco fluid system 400 that includes both a 464/464 'multiposition irrigation valve and a variable ventilation valve 62. Additionally, 464/464' multiposition irrigation valves are capable of operating in an "in" style / out, or, as described above, 464/464 'multiposition irrigation valves can also be configured to provide a variable orifice in order to selectively control the amount of irrigation, in a similar manner to that previously described in connection with valve variable ventilation 62. For example, the amount of irrigation to be provided for utensil 42 from irrigation power line 473 can be selectively controlled by an irrigation line variable multiposition, such that less than complete irrigation from irrigation feed line 473 can be fed to irrigation line 50 (and therefore utensil 42). In such an instance, variable multiposition irrigation valve 464/464 'is selectively rotated in order to provide partial communication with both irrigation power lines 473 and irrigation lines 50.
    [0080] Referring now to FIG. 11, components of yet another alternative phaco fluid system 500 for use with a positive displacement pumping system are shown. Phaco fluid system 500 includes many of the same components as shown and described above in connection with FIGS. 3, and 5-10. In this sense, as components the same reference numbers were given. For a detailed discussion of those components, reference is made to the above discussion with respect to FIG. 3.
    [0081] Phaco fluid system 500 includes infusion sleeve 44 of utensil 42 which is connected to irrigation source 48 by an irrigation power line 549 which is fluidly connected to an irrigation line 50. A suction exhaust line 54 extends from pump 20. In an exemplary arrangement, suction exhaust line 54 is fluidly connected to a drain line reservoir 56. Reservoir 56 can also drain into an optional drain bag 58. Alternatively, as shown in the spectrum, exhaust line 54 'can be connected fluidly directly to drain bag 58.
    [0082] A suction ventilation line 560 is fluidly connected between a suction line 52 and irrigation line 50. A proportional multipurpose valve 562 is fluidly connected between suction ventilation line 560 and irrigation line 50 in order to control selectively the suction pressure within the suction line 52 and the irrigation flow within the irrigation line 50. Pressure sensor 63 is also in fluid communication with the suction line 52.
    [0083] Multi-purpose valve 562 is configured to provide a variable orifice size to selectively modulate vacuum, thereby allowing unidirectional rotation of the pump 20 in a first direction to generate flow / vacuum, while allowing selective control of suction / vacuum for utensil 42 based on the angular position of multipurpose valve 62. More specifically, in an exemplary configuration, referring to FIGS. 12A-12B, the multipurpose valve body 562 is defined by a periphery 570. The body has a first flow path 563A formed in one portion of the periphery 570 and a second flow path 563B formed in another portion of the periphery 570.
    [0084] Referring back to FIG. 12A, in operation, the multipurpose valve 562 is selectively rotatable within a groove 600 formed in cassette 28. More specifically, operatively connected to groove 600 are a plurality of fluid lines that are selectively connectable to each other by means of the angular position of multipurpose valve 562. For example, in phaco fluid system 500 shown in FIG. 11, multipurpose valve 562 serves to operatively connect irrigation supply line 549, irrigation line 50, suction line 52, suction exhaust line 54/54 'by means of first and second flow paths 563A, 563B. Multi-purpose valve 562 is movable within groove 600 in order to provide a variety of connection arrangements with respect to suction line 52, irrigation line 50, irrigation supply line 549 and suction exhaust line 54/54 'can achieved, as will be explained in more detail below.
    [0085] Pressure sensor 63 is operatively connected to a control system mounted on console 40 and is configured to detect and communicate pressure changes in suction line 52 during operation of the phacoemulsification machine. In an exemplary configuration, predetermined pressure thresholds are defined within the control system such that when pressure readings from pressure sensor 63 exceed those thresholds, the control system can selectively move multipurpose valve 562 by a predetermined amount to reduce the pressure of suction within suction line 52. More specifically, second flow path 563B in multipurpose valve 562 is mobile relative to suction ventilation line 560.
    [0086] For example, multipurpose valve 562 can be positioned within groove 600 and selectively rotated such that second flow path 563B fully closes suction ventilation line 560 outside suction line 52, such as full vacuum, as indicated by pre-selected user pressure settings are provided. However, if pressure has increased within the suction line 52 by an undesirable amount (such as, for example, because of an outbreak of occlusion pause), multipurpose valve 562 can be selectively moved by a predetermined amount such that second path flow controller 563B operatively connects suction line 54/54 'directly to suction line 52, using suction ventilation line 560, thus avoiding pump 20. This action quickly and effectively restores suction pressure within the suction line 52 for the predetermined acceptable amount, without requiring pump reversal.
    [0087] In an exemplary arrangement, multipurpose valve 562 can be operatively connected to a foot switch pedal. In this sense, the user can operate the foot switch pedal to rotate the multipurpose valve 562 to selectively vent (for example, lifting his / her foot off the pedal) suction line 52. The foot switch pedal can be configured to rotate multipurpose valve 562 for a predetermined quantity and in a predetermined direction, based on the control system settings, based on user input. Due to the secondary flow path configuration 563B, a variety of suction pressures can be achieved by the selective movement of the multipurpose valve 562. In some exemplary situations, it may be desirable to completely open the exhaust line 54/54 ', thus the suction line ventilation 52.
    [0088] In another exemplary arrangement, multipurpose valve 562 is operatively connected to a motor 71, such as a stepper motor, having an angular position encoder (such as encoder 36). When pressure sensor 63 detects that suction pressure has exceeded a predetermined threshold, the controller automatically operates motor 71 to rotate multipurpose valve 562 to a predetermined position, thereby rapidly changing suction pressure within suction line 52. As the controller, in cooperation with pressure sensor 63, it can be configured to detect a start of occlusion break, multipurpose valve 562 can be automatically rotated by motor 71 at reduced suction pressure within suction line 52 below predetermined settings. to decrease the secondary occlusion outbreak. Because multipurpose valve 562 allows selective and dynamic control of suction levels within the suction line 52, higher vacuum rates can be selected and employed by the user for the user and faster and more efficient lens removal.
    [0089] In addition to selectively controlling suction levels within the 500 system, multipurpose valve 562 also serves an additional purpose, that is, controlling irrigation through irrigation line 50. More specifically, first flow path 563A is configured to selectively connect irrigation hose 549 to irrigation line 50 when the first flow path 563A is in communication with irrigation supply line 549 and irrigation line 50. However, multipurpose valve 562 can be selectively rotated such that the first flow path 563A is placed without communication with the irrigation power line 549, thereby effectively shutting down irrigation.
    [0090] In addition, the 562 multipurpose valve configuration also allows selective control of the suction level, while simultaneously controlling irrigation. For example, fluid lines 549, 50, 54/54 'and 52, and multipurpose valve 562 are configured such that when first flow path 563A is in communication with both irrigation lines 50 and irrigation supply line 549, second flow path 563B is only in communication with exhaust line 54/54 ', leaving suction line 52 closed for exhaust line 54/54'. In this arrangement, irrigation is fed to utensil 42 and ventilation line 560 is closed. Alternatively, multipurpose valve 562 can be rotated from the "open irrigation line, closed ventilation line" position such that second flow path 563B is open for both suction lines 52 and exhaust line 54/54 ' , while first flow path 563A is in communication with both irrigation lines 50 and irrigation feed line 549. In this configuration, irrigation is being fed to utensil 42 and suction line 52 is operatively connected to exhaust line 54/54 ' thus reducing if not eliminating suction pressure within the suction line 52. This design effectively eliminates a valve element from the system 500, while still providing to selectively vary suction pressure and selectively control irrigation.
    [0091] Referring now to FIG. 13, a partial schematic of an alternative suction circuit 700 for use in a phaco fluid system is shown. Suction circuit 700 employs both displacement-based and / or vacuum-based suction methods. Suction circuit 700 includes a suction line 752 that fluidly connects to appliance 742 or to a port 753 of peristaltic pump 720 or to a port 731 of a venturi reservoir 760. Suction exhaust lines 754/754 'extend from inlet port 731 of the venturi reservoir 760 and inlet port 753 from peristaltic pump 720, respectively. While state of the art it configures separate valves used to close and open the inlet port 731 of the venturi reservoir 760 and to provide selective ventilation from the suction line 752 to a drainage bag 758, suction circuit 700 employs a multi-purpose valve 732 which is arranged within a sealed groove of a cassette (similar to that shown in FIG. 12A above) that provides both functions.
    [0092] More specifically, referring to Figs. 14A - 14C, in an exemplary arrangement multipurpose valve 732 it is configured with a channel 763 which is defined by a first opening 765 and a second opening 767. In an exemplary arrangement, second opening 767 can be configured with an externally extending flare. Alternatively, channel 763 can be configured with a triangular shape that outwardly widens towards a multipurpose valve periphery 770. First opening 765 is positioned across channel 763. Second opening is formed through a multipurpose valve periphery 770 732.
    [0093] Referring to Fig. 14A, during operation, multipurpose valve 732 can be positioned such that suction is delivered to suction line 752 by pump 720. In this configuration, multipurpose valve 732 is selectively rotated such that inlet line 731 for venturi reservoir is closed and suction exhaust line 754 is closed off suction line 752. In this configuration, complete suction is provided by pump 720.
    [0094] A pressure sensor 769 can be positioned in the input line 753 to detect and monitor the pressure in the suction line 752. Pressure sensor 769 is operatively connected to a control system mounted on a console. Pressure sensor 769 detects and communicates pressure changes in the suction line 752 during operation of the phacoemulsification machine. In an exemplary configuration, predetermined pressure thresholds can be set within the control system such that when pressure readings from pressure sensor 769 exceed those thresholds, the system pushes 732 multipurpose valve movement by a predetermined amount to reduce the pressure of suction within suction line 52. More specifically, referring to FIG. 14B, multipurpose valve 732 can be rotated such that second opening 767 of channel 763 is in at least partial fluid communication with suction suction line 754. Thus, if pressure has increased within suction line 752 by an undesirable amount (such as, for example, because of an outbreak of occlusion pause), multipurpose valve 732 can be selectively moved by a predetermined amount in order to partially open the suction exhaust line 754, as indicated in FIG. 14B. This action quickly and effectively restores the suction pressure within the 752 suction line to the predetermined acceptable amount, without requiring pump reversal. It is understood, however, that this channel 763 can be rotated such that suction line 752 is fully open to suction exhaust line 754, if necessary.
    [0095] As discussed above, multipurpose valve 732 can also be used to switch suction source from pump 720 to venturi reservoir 760. Referring to Fig. 14C, in this configuration, channel 763 is positioned such that second opening 767 is in communication with inlet 731 of venturi reservoir 760, thereby connected to suction line 752 for venturi reservoir 760. Meanwhile, suction exhaust line 754 is isolated from suction line 752.
    [0096] In some embodiments, a fluid system for use in a surgical system may include a suction circuit (comprising a suction line operatively connected to a surgical instrument, a suction exhaust line operatively connected to a waste receptacle , a suction line connected to a first end for the suction line, and a selectively variable valve operatively connected to the suction ventilation line (where the variable valve can be selectively operated to selectively change the suction pressure within the suction line )) and an irrigation circuit (comprising an irrigation source, an irrigation power line connected to the irrigation source and an irrigation line, having a first end operatively connected to the irrigation power line and a second end operably connected to the surgical device). The fluid system can additionally include a bypass path, in which a first end of the bypass path is operatively connected to the irrigation supply line and a second end of the bypass path is connected to the waste receptacle. The fluid system additionally includes a selectively positionable irrigation valve that operatively connects the irrigation supply line, the irrigation line and the bypass path such that the selectively positionable irrigation valve can be moved to direct irrigation from the irrigation line. irrigation feed. In some embodiments, the irrigation valve can be a rotary valve and includes an intersecting channel formed therein, the channel defining a first branch, a second branch and a third branch. In some embodiments, the irrigation valve includes first, second and third branches and is selectively movable between a first position, a second position and a third position; where in the first position, the first branch is positioned in communication with that of the irrigation supply line and the second branch is positioned in communication with the irrigation line where in the second position, the first branch is positioned in communication with the path bypass and the third branch is in communication with the irrigation supply line; and where, in the third position, the first branch is positioned in communication with the irrigation line, the second branch is positioned in communication with the irrigation supply line and the third branch is positioned in communication with the bypass path. In some embodiments, the variable ventilation valve can be connected to the irrigation line such that the variable ventilation valve can be selectively moved in order to selectively interrupt fluid flow in the irrigation line and selectively vary the suction pressure within the suction line. . In some embodiments, the variable ventilation valve can be configured with first and second flow paths formed therein, where the first flow path can be selectively aligned with the irrigation supply line and the irrigation line to open the line of irrigation to the irrigation power supply, and where the second flow path can be selectively aligned with the suction line and suction exhaust line to selectively vary the suction pressure within the suction line.
    [0097] In some embodiments, a suction circuit for a fluid system to selectively control suction can include a suction line operatively connected to a surgical instrument, a first suction exhaust line operatively connected to a waste receptacle, a second suction exhaust line operatively connected to a waste receptacle, a displacement-based suction source operatively connected to the first suction exhaust line, a vacuum-based suction source operatively connected to the second suction exhaust line, and a variable valve selectively operatively connected to both the displacement-based aspiration source and the vacuum-based aspiration source; wherein the variable valve can be actuated to selectively change the suction pressure within the suction line when the displacement-based suction source is employed. In some embodiments, the variable valve can be selectively actuated to provide suction pressure to the suction line of the vacuum-based suction source. In some embodiments, the displacement-based suction source is a peristaltic pump and suction source based on vacuum includes a venturi reservoir. In some embodiments, the variable valve additionally comprises a valve body that includes a channel that is defined by a first opening and a second opening, in which the first opening is positioned across the length of the channel and in which the second opening is formed through from a periphery of the valve body.
    [0098] It will be appreciated that the devices and methods described here have wide applications. The previous modalities were chosen and described in order to illustrate principles of methods and devices, as well as some practical applications. The foregoing description allows others skilled in the art to use methods and apparatus in various modalities and with various modifications as are suitable for the specific use contemplated. In accordance with the provisions of the patent statutes, the principles and modes of operation of this invention have been explained and illustrated in exemplary modalities.
    [0099] It is intended that the scope of the present methods and apparatus be defined by the following claims. However, it must be understood that this invention can be practiced in another way that is specifically explained and illustrated without departing from its spirit or scope. It should be understood by those skilled in the art that various alternatives to the modalities described in this document can be employed to practice the claims without departing from the spirit and scope as defined in the following claims. The scope of the invention should be determined not with reference to the above description, but should instead be determined with reference to the appended claims, together with the full scope of equivalents to which such claims are entitled. It is anticipated and intended that future developments will occur in the techniques discussed in this document, and that the methods and systems disclosed will be incorporated into such examples of futures. In addition, all terms used in the claims are designed to be given their broadest reasonable constructions and their common meanings as understood by those skilled in the art, unless an explicit statement to the contrary is described in this document. In particular, use of singular articles such as "o", "a" "an" "an" etc. they must be read to recite one or more of the elements indicated, unless a claim recites an explicit limitation to the contrary. It is intended that the following claims define the scope of the invention and that the methods and apparatus within the scope of these claims and their equivalents are covered. In short, it should be understood that the invention is capable of modification and variation and is limited only by the following claims.
    权利要求:
    Claims (15)
    [0001]
    1.Suction circuit for a fluid system (11) to selectively control suction, characterized by the fact that it comprises: a suction line (52) operatively connected to a surgical instrument (42), a suction exhaust line (54 ) operatively connected to a waste receptacle (58); a suction ventilation line (60) connected to a first end in a suction line; and a selectively variable ventilation valve (62) operatively connected to the suction ventilation line, where the variable ventilation valve can be selectively moved to selectively change the suction pressure within the suction line, where the suction valve vent (62) is a rotary valve that further comprises an inlet opening (68), an outlet opening (69) and a channel (66) connecting the inlet opening (68) to the outlet opening (69); wherein the ventilation valve (62) can be selectively rotated to selectively position the channel (66) in at least partial communication with the suction ventilation line (60).
    [0002]
    2. Suction circuit according to claim 1, characterized by the fact that the suction ventilation line (60) is connected at a second end to the suction exhaust line (54).
    [0003]
    3. The suction circuit according to claim 1, characterized by the fact that the suction ventilation line (60) is connected at a second end to an atmosphere.
    [0004]
    4. Aspiration circuit according to claim 1, characterized by the fact that the suction ventilation line (60) is connected to a second end to a source of pressure ventilation fluid or pressurized saline.
    [0005]
    5. Suction circuit according to claim 1, characterized by the fact that the suction ventilation line (60) is connected at a second end to an irrigation line (50).
    [0006]
    6.Suction circuit according to claim 1, characterized by the fact that it still comprises: a pressure sensor (63) and an actuator, the pressure sensor (63) being operatively connected to the suction line (52) and the actuator being operatively connected to the vent valve (62), where the pressure sensor (63) and the actuator are connected to a controller (40), and where the controller (40) is operative to start the actuator for move the ventilation valve (62) in response to the predetermined pressure values detected by the pressure sensor (63) to vary the suction pressure within the suction line (52).
    [0007]
    7. The suction circuit according to claim 1, characterized by the fact that the actuator is a motor (71).
    [0008]
    8. The suction circuit according to claim 1, characterized by the fact that the variable ventilation valve (62) is operatively connected to an irrigation line (50) so that the variable ventilation valve (62) can be selectively moved in order to selectively interrupt fluid flow in the irrigation line and selectively vary the suction pressure within the suction line (52).
    [0009]
    9. The suction circuit according to claim 8, characterized by the fact that the variable ventilation valve (62) is configured with first and second flow paths formed in the same way, in which the first flow path can be selectively and at least partially, aligned with an irrigation feed line and the irrigation line (50) to open the irrigation line to an irrigation power source, and where the second flow path can be selectively and at least partially, aligned with the suction line (52) and suction exhaust line (54) to selectively vary the suction pressure within the suction line (52).
    [0010]
    10. Aspiration circuit, according to claim 1, characterized by the fact that it still comprises an irrigation line (50) operatively connected to the surgical instrument (42).
    [0011]
    11. The suction circuit according to claim 10, characterized by the fact that it also comprises an irrigation pressure sensor (475) and an actuator, the irrigation pressure sensor (475) being positioned to detect the irrigation pressure in the irrigation line (50) and the actuator being operatively connected to the ventilation valve (62).
    [0012]
    Aspiration circuit according to claim 11, characterized by the fact that the irrigation pressure sensor (475) and the actuator are connected to a controller (40), and in which the controller (40) is operative for start the actuator to move the vent valve (62) in response to the pressure detected by the irrigation pressure sensor (475) to vary the suction pressure within the suction line (52).
    [0013]
    13. The suction circuit according to claim 11, characterized by the fact that the actuator is configured to move the ventilation valve (62) to provide a variable orifice size to selectively modulate the suction within the suction line (52 ).
    [0014]
    14. Aspiration circuit according to claim 11, characterized by the fact that the irrigation pressure sensor (475) is located on the surgical instrument (42).
    [0015]
    Aspiration circuit, according to claim 12, characterized by the fact that the controller (40), using information from the irrigation pressure sensor (475), is configured to detect a start of occlusion breaking, and in which the controller (40) is configured to minimize the start of occlusion breaking by initiating the actuator to move the vent valve (62).
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112014013812B1|2020-11-24|ASPIRATION CIRCUIT FOR A FLUID SYSTEM
    同族专利:
    公开号 | 公开日
    WO2013085745A1|2013-06-13|
    US20190282401A1|2019-09-19|
    PT2766064T|2016-10-20|
    AU2019201617A1|2019-04-04|
    AR089585A1|2014-09-03|
    TWI646985B|2019-01-11|
    AU2012348191A1|2014-05-29|
    EP3081239A1|2016-10-19|
    JP2020114494A|2020-07-30|
    BR112014013812A2|2017-06-13|
    AU2016277692B2|2018-12-20|
    RU2014127687A|2016-02-10|
    JP2017094105A|2017-06-01|
    KR20140107322A|2014-09-04|
    RU2020128167A|2022-02-25|
    DK2766064T3|2016-11-07|
    AU2012348191C1|2017-04-20|
    US10314741B2|2019-06-11|
    JP2018158124A|2018-10-11|
    PL2766064T3|2017-08-31|
    EP2766064A4|2014-12-03|
    CN108309558A|2018-07-24|
    AU2016277692A1|2017-01-19|
    ES2770712T3|2020-07-02|
    RU2020128167A3|2022-02-25|
    US9561321B2|2017-02-07|
    CA3057786A1|2013-06-13|
    EP3620189A1|2020-03-11|
    KR20200021098A|2020-02-27|
    CN108309558B|2021-02-12|
    PH12014501196A1|2014-09-08|
    RU2618902C2|2017-05-11|
    RU2731477C2|2020-09-03|
    US20130150782A1|2013-06-13|
    KR102170102B1|2020-10-28|
    TW201722487A|2017-07-01|
    KR102170110B1|2020-10-28|
    RU2017114183A|2019-01-28|
    JP6863929B2|2021-04-21|
    MX346230B|2017-03-13|
    JP6912624B2|2021-08-04|
    JP2015500698A|2015-01-08|
    TWI580446B|2017-05-01|
    US20210282967A1|2021-09-16|
    BR122019028274B1|2021-01-19|
    BR112014013812A8|2017-06-13|
    EP3081239B1|2019-12-25|
    AU2019201617B2|2020-05-14|
    KR20200021099A|2020-02-27|
    KR102079355B1|2020-02-19|
    JP6530364B2|2019-06-12|
    US11045354B2|2021-06-29|
    TW201341003A|2013-10-16|
    RU2017114183A3|2020-06-26|
    EP3081239B8|2020-03-11|
    TW201907963A|2019-03-01|
    EP2766064A1|2014-08-20|
    CN103987411A|2014-08-13|
    US20170042733A1|2017-02-16|
    CA3057779C|2021-06-22|
    IN2014CN04341A|2015-09-04|
    CA3057786C|2022-02-08|
    CA3057779A1|2013-06-13|
    CA2855744C|2020-06-02|
    CA2855744A1|2013-06-13|
    MX2014006712A|2014-07-09|
    EP2766064B1|2016-08-17|
    CN103987411B|2018-04-27|
    ES2595211T3|2016-12-28|
    AU2012348191B2|2016-10-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3515155A|1967-02-24|1970-06-02|Air Reduction|Gas mixture proportioner|
    NL145136C|1967-07-25|1900-01-01|
    US3558100A|1968-01-23|1971-01-26|Eldon E Hulsey|Multiple orifice rotary control valve|
    US3732858A|1968-09-16|1973-05-15|Surgical Design Corp|Apparatus for removing blood clots, cataracts and other objects from the eye|
    US3844272A|1969-02-14|1974-10-29|A Banko|Surgical instruments|
    US3996935A|1969-02-14|1976-12-14|Surgical Design Corporation|Surgical-type method for removing material|
    US3693613A|1970-12-09|1972-09-26|Cavitron Corp|Surgical handpiece and flow control system for use therewith|
    US4370983A|1971-01-20|1983-02-01|Lichtenstein Eric Stefan|Computer-control medical care system|
    US3920014A|1971-12-15|1975-11-18|Anton Banko|Surgical system for controlling the infusion of fluid to and the evacuation of fluid and material from an operating field|
    US3812855A|1971-12-15|1974-05-28|Surgical Design Corp|System for controlling fluid and suction pressure|
    US4007742A|1974-06-03|1977-02-15|Surgical Design Corporation.|Surgical system for controlling the infusion of fluid to and the evacuation of fluid and material from an operating field|
    US3805787A|1972-06-16|1974-04-23|Surgical Design Corp|Ultrasonic surgical instrument|
    US3884238A|1972-06-19|1975-05-20|Malley Conor C O|Apparatus for intraocular surgery|
    US3815604A|1972-06-19|1974-06-11|Malley C O|Apparatus for intraocular surgery|
    US3937222A|1973-11-09|1976-02-10|Surgical Design Corporation|Surgical instrument employing cutter means|
    US3902495A|1974-01-28|1975-09-02|Cavitron Corp|Flow control system|
    US4041947A|1974-01-28|1977-08-16|Cavitron Corporation|Flow control system|
    US3990452A|1975-06-13|1976-11-09|Fibra-Sonics, Inc.|Medical machine for performing surgery and treating using ultrasonic energy|
    US4184510A|1977-03-15|1980-01-22|Fibra-Sonics, Inc.|Valued device for controlling vacuum in surgery|
    US4180074A|1977-03-15|1979-12-25|Fibra-Sonics, Inc.|Device and method for applying precise irrigation, aspiration, medication, ultrasonic power and dwell time to biotissue for surgery and treatment|
    US4117843A|1977-05-12|1978-10-03|Surgical Design Corp.|Surgical operating system with upper pressure limit|
    US4274411A|1979-03-30|1981-06-23|Dotson Robert S Jun|Fluid operated ophthalmic irrigation and aspiration device|
    US4261360A|1979-11-05|1981-04-14|Urethral Devices Research, Inc.|Transurethral irrigation pressure controller|
    US4369785A|1980-02-21|1983-01-25|Contemporary Ocu-Flo, Inc.|Surgical fluid flow system|
    US4395258A|1980-11-03|1983-07-26|Cooper Medical Devices|Linear intra-ocular suction device|
    US4493698A|1980-11-03|1985-01-15|Cooper Medical Devices|Method of performing opthalmic surgery utilizing a linear intra-ocular suction device|
    US4496342A|1981-03-20|1985-01-29|Surgical Design Corporation|Surge prevention system for an ophthalmic instrument|
    JPS5831556Y2|1981-10-06|1983-07-13|
    US4548205A|1982-10-27|1985-10-22|Armeniades C D|Ophthalmic instrument for measuring intraocular fluid pressure|
    DE3317970C2|1983-05-13|1991-11-14|Schering Ag Berlin-Bergkamen, 1000 Berlin, De|
    US4722350A|1984-09-21|1988-02-02|Armeniades C D|Ophthalmic instrument for measuring intraocular fluid pressure|
    US4841984A|1985-09-16|1989-06-27|Armoor Ophthalmics, Inc.|Fluid-carrying components of apparatus for automatic control of intraocular pressure|
    US4670006A|1984-10-16|1987-06-02|Sinnett Kevin B|Fluid and air infusion device|
    US4935005A|1985-06-05|1990-06-19|Nestle, S.A.|Opthalmic fluid flow control system|
    US4764165A|1986-07-17|1988-08-16|Mentor O & O, Inc.|Ophthalmic aspirator-irrigator with valve|
    EP0266451B1|1986-11-05|1990-02-14|BOSCH + SOHN GmbH u. Co.KG Fabrik medizinischer Apparate|Instrument for reducing intra-ocular pressure|
    US4882575A|1987-01-28|1989-11-21|Sharp Kabushiki Kaisha|Monitor for blocked condition in tube for fluid infusion pump|
    US5195960A|1987-04-27|1993-03-23|Site Microsurgical Systems, Inc.|Disposable vacuum/peristaltic pump cassette system|
    US4900301A|1987-09-22|1990-02-13|Vitreoretinal Development, Inc.|Method for ocular perfusion|
    US5032111A|1987-09-22|1991-07-16|Vitreoretinal Development, Inc.|Method and apparatus for ocular perfusion|
    US5047009A|1987-09-22|1991-09-10|Vitreoretinal Development, Inc.|Method and apparatus for ocular perfusion|
    DE3850492T2|1987-10-14|1995-02-16|Nestle Sa|SURGICAL IRRIGATION AND SUCTION SYSTEM.|
    DE3805368C1|1988-02-17|1989-08-24|Peter P. Dipl.-Ing. Wiest|
    US4869715A|1988-04-21|1989-09-26|Sherburne Fred S|Ultrasonic cone and method of construction|
    US5024652A|1988-09-23|1991-06-18|Dumenek Vladimir A|Ophthalmological device|
    US5649904A|1988-10-07|1997-07-22|Sandoz Ltd.|Method of treating cancer with a fully myeloablative regimen of chemotherapy, radiation or both|
    DE3843138C2|1988-12-22|1993-08-19|Robert Bosch Gmbh, 7000 Stuttgart, De|
    US4983401A|1989-05-22|1991-01-08|Kinaform Technology, Inc.|Sustained release pharmaceutical preparations having pH controlled membrane coatings|
    US5154694A|1989-06-06|1992-10-13|Kelman Charles D|Tissue scraper device for medical use|
    DE3933856C2|1989-10-07|1992-05-14|Wiest, Peter P., Dipl.-Ing., 1000 Berlin, De|
    US4944261A|1989-10-16|1990-07-31|Coates George J|Spherical rotary valve assembly for an internal combustion engine|
    EP0424686A1|1989-10-27|1991-05-02|Storz Instrument Company|Control system for ophthalmic surgical instruments|
    US5417246A|1989-10-27|1995-05-23|American Cyanamid Company|Pneumatic controls for ophthalmic surgical system|
    US5306237A|1989-11-06|1994-04-26|Mectra Labs, Inc.|Disposable lavage|
    EP0482858A3|1990-10-26|1992-07-08|Alcon Surgical, Inc.,|Surgical infusion control system|
    JP3123750B2|1990-11-13|2001-01-15|株式会社ニデック|Perfusion suction device|
    US5279547A|1991-01-03|1994-01-18|Alcon Surgical Inc.|Computer controlled smart phacoemulsification method and apparatus|
    US5160317A|1991-01-03|1992-11-03|Costin John A|Computer controlled smart phacoemulsification method and apparatus|
    US5586973A|1991-04-22|1996-12-24|C & D Biomedical S.A.|Method and device for controlled irrigation and suctioning of a liquid clarificant during endoscopic surgery|
    FR2675367A1|1991-04-22|1992-10-23|C D Biomedical Sa|APPARATUS FOR CONTROLLED IRRIGATION OF NATURAL BODY CAVITIES.|
    JPH06509258A|1991-07-31|1994-10-20|
    EP0692265B1|1991-08-21|2000-05-24|Smith & Nephew, Inc.|Fluid management system|
    US5287851A|1991-09-11|1994-02-22|Beran Anthony V|Endotracheal tube connector with integral pneumotach transducer|
    US5160367A|1991-10-03|1992-11-03|The United States Of America As Represented By The United States Department Of Energy|Salt transport extraction of transuranium elements from lwr fuel|
    US6165154A|1995-06-07|2000-12-26|Deka Products Limited Partnership|Cassette for intravenous-line flow-control system|
    US5267956A|1992-02-05|1993-12-07|Alcon Surgical, Inc.|Surgical cassette|
    US5242404A|1992-02-12|1993-09-07|American Cyanamid Company|Aspiration control system|
    WO1993017729A1|1992-03-03|1993-09-16|Alcon Surgical, Inc.|System and apparatus for controlling fluid flow from a surgical handpiece|
    US5643304A|1993-02-16|1997-07-01|Danek Medical, Inc.|Method and apparatus for minimally invasive tissue removal|
    US5556378A|1992-06-17|1996-09-17|Storz; Karl|Device for irrigation of body cavities|
    US5354268A|1992-11-04|1994-10-11|Medical Instrument Development Laboratories, Inc.|Methods and apparatus for control of vacuum and pressure for surgical procedures|
    US5292306A|1993-01-29|1994-03-08|Abbott Laboratories|Method of detecting occlusions in a solution pumping system|
    US5403276A|1993-02-16|1995-04-04|Danek Medical, Inc.|Apparatus for minimally invasive tissue removal|
    US5342293A|1993-06-22|1994-08-30|Allergan, Inc.|Variable vacuum/variable flow phacoemulsification method|
    US5380280A|1993-11-12|1995-01-10|Peterson; Erik W.|Aspiration system having pressure-controlled and flow-controlled modes|
    US5429143A|1993-11-22|1995-07-04|Marzluff; Joseph|Device and method for determining hole integrity in surgical applications|
    US5591127A|1994-01-28|1997-01-07|Barwick, Jr.; Billie J.|Phacoemulsification method and apparatus|
    DE4417189A1|1994-05-17|1995-11-23|Hippokratec Gmbh|Perfusion and suction device for rinsing body apertures, e.g. for hysteroscopy and arthroscopy|
    US5584824A|1994-06-08|1996-12-17|Syntec, Inc.|Controlled vacuum cassette in ophthalmic retinal surgery|
    JP3679143B2|1994-06-30|2005-08-03|株式会社ニデック|Perfusion suction device|
    US5695473A|1994-07-27|1997-12-09|Sims Deltec, Inc.|Occlusion detection system for an infusion pump|
    US5476448A|1994-10-19|1995-12-19|Urich; Alex|Apparatus for suppressing a vacuum surge in eye surgery|
    AU4006895A|1994-10-28|1996-05-23|Chiron Vision Corporation|Control system for opthalmic surgery|
    EP0717970A1|1994-12-20|1996-06-26|GRIESHABER & CO. AG SCHAFFHAUSEN|Opthalmic aspiration and irrigation device and its operation procedure|
    DE19502305C2|1995-01-26|2002-01-17|Geuder Hans Gmbh|Apparatus for aspirating lens debris in cataract surgery|
    US5562612A|1995-02-02|1996-10-08|Charles D. Kelman|Apparatus and method for reverse flow irrigation and aspiration of interior regions of the human eye|
    US5569188A|1995-04-11|1996-10-29|Mackool; Richard J.|Apparatus for controlling fluid flow through a surgical instrument and the temperature of an ultrasonic instrument|
    DE19514638C2|1995-04-20|1998-06-04|Peter Dr Med Boekstegers|Device for the selective suction and retroinfusion of a fluid from or into body veins controlled by venous pressure|
    EP0778750B1|1995-06-02|2003-10-01|Surgical Design Corporation|Phacoemulsification handpiece, sleeve, and tip|
    US5755683A|1995-06-07|1998-05-26|Deka Products Limited Partnership|Stopcock valve|
    US6210361B1|1997-08-22|2001-04-03|Deka Products Limited Partnership|System for delivering intravenous drugs|
    US5827223A|1995-08-31|1998-10-27|Alaris Medical Systems, Inc.|Upstream occulsion detection system|
    DE19541633A1|1995-11-08|1997-05-15|Storz Endoskop Gmbh|Device for rinsing body cavities|
    US5899674A|1995-12-01|1999-05-04|Alcon Laboratories, Inc.|Indentification system for a surgical cassette|
    US5915282A|1995-12-14|1999-06-22|Abbott Laboratories|Fluid handler and method of handling a fluid|
    US5723795A|1995-12-14|1998-03-03|Abbott Laboratories|Fluid handler and method of handling a fluid|
    US5965828A|1995-12-14|1999-10-12|Abbott Laboratories|Fluid handler and method of handling a fluid|
    US5766146A|1996-04-04|1998-06-16|Allergan|Method of infusion control during phacoemulsification surgery|
    US5697898A|1996-05-31|1997-12-16|Surgical Design Corporation|Automated free flow mechanism for use in phacoemulsification, irrigation and aspiration of the eye|
    US5836909A|1996-09-13|1998-11-17|Cosmescu; Ioan|Automatic fluid control system for use in open and laparoscopic laser surgery and electrosurgery and method therefor|
    US5733256A|1996-09-26|1998-03-31|Micro Medical Devices|Integrated phacoemulsification system|
    US5897524A|1997-03-24|1999-04-27|Wortrich; Theodore S.|Compact cassette for ophthalmic surgery|
    US6258111B1|1997-10-03|2001-07-10|Scieran Technologies, Inc.|Apparatus and method for performing ophthalmic procedures|
    US6083193A|1998-03-10|2000-07-04|Allergan Sales, Inc.|Thermal mode phaco apparatus and method|
    US6200289B1|1998-04-10|2001-03-13|Milestone Scientific, Inc.|Pressure/force computer controlled drug delivery system and the like|
    US6425883B1|1998-05-08|2002-07-30|Circuit Tree Medical, Inc.|Method and apparatus for controlling vacuum as a function of ultrasonic power in an ophthalmic phaco aspirator|
    DE19828677A1|1998-05-20|2000-04-20|Hans Reinhard Koch|Operating system, in particular ophthalmic operating system|
    US6986753B2|1998-05-21|2006-01-17|Buivision|Constant ocular pressure active infusion system|
    US6010461A|1998-09-01|2000-01-04|Sitek, Inc.|Monolithic silicon intra-ocular pressure sensor and method therefor|
    US6224583B1|1998-10-15|2001-05-01|Bausch & Lomb Surgical, Inc.|Air venting in ophthalmic irrigation/aspiration system via closed bag system|
    US6083195A|1998-10-15|2000-07-04|Bausch & Lomb Surgical, Inc.|Ophthalmic aspiration system with selectable vent method|
    US6013049A|1998-10-29|2000-01-11|Allergan Sales, Inc.|Controlled outflow sleeve|
    US6283719B1|1998-11-05|2001-09-04|Frantz Medical Development Ltd|Detecting obstructions in enteral/parenteral feeding tubes and automatic removal of clogs therefrom|
    DE19852574A1|1998-11-06|2000-05-11|Aesculap Meditec Gmbh|Medical instrument for phacoemulsification|
    US6241700B1|1999-03-08|2001-06-05|Alcon Laboratories, Inc.|Surgical handpiece|
    US6599271B1|1999-04-13|2003-07-29|Syntec, Inc.|Ophthalmic flow converter|
    US6465467B1|1999-05-21|2002-10-15|Biovitrum Ab|Certain aryl-aliphatic and heteroaryl-aliphatic piperazinyl pyrazines and their use in the treatment of serotonin-related diseases|
    US6179808B1|1999-06-18|2001-01-30|Alcon Laboratories, Inc.|Method of controlling the operating parameters of a surgical system|
    PT1187643E|1999-06-18|2003-12-31|Alcon Mfg Ltd|IRRIGATION CONTROL SYSTEM|
    US6162187A|1999-08-02|2000-12-19|Ethicon Endo-Surgery, Inc.|Fluid collection apparatus for a surgical device|
    US20040253129A1|1999-08-31|2004-12-16|Sorensen Gary P.|Liquid venting surgical cassette|
    US6261283B1|1999-08-31|2001-07-17|Alcon Universal Ltd.|Liquid venting surgical system and cassette|
    US6740074B2|1999-08-31|2004-05-25|Alcon, Inc.|Liquid venting surgical cassette|
    AU5493000A|1999-10-01|2001-05-10|Alcon Universal Limited|Sleeve for microsurgical instrument|
    US6575990B1|1999-10-21|2003-06-10|Medical Instrument Development Laboratories, Inc.|High speed vitreous cutting system|
    US6585679B1|1999-10-21|2003-07-01|Retinalabs.Com|System and method for enhancing oxygen content of infusion/irrigation fluid for ophthalmic surgery|
    AT383104T|1999-11-10|2008-01-15|Cytyc Surgical Products|SYSTEM FOR FIXING PERFORATIONS IN A BODY CAVITY|
    US6962488B2|1999-11-10|2005-11-08|Alcon, Inc.|Surgical cassette having an aspiration pressure sensor|
    US6293926B1|1999-11-10|2001-09-25|Alcon Universal Ltd.|Peristaltic pump and cassette|
    JP3935653B2|2000-02-04|2007-06-27|株式会社ニデック|Perfusion suction device|
    US6699184B2|2000-03-10|2004-03-02|C.R. Bard, Inc.|Fluid management assembly having a vented outlet line for use in endoscopic procedures|
    AUPQ644400A0|2000-03-23|2000-04-20|Oversby Pty Ltd|An aspiration flow modulation device|
    CA2385779A1|2000-08-29|2002-03-07|Alcon Laboratories, Inc.|Method of controlling intraocular pressure and temperature|
    US6626827B1|2000-09-01|2003-09-30|C. R. Bard, Inc.|Fluid management assembly for use in endoscopic procedures|
    US6572604B1|2000-11-07|2003-06-03|Baxter International Inc.|Occlusion detection method and system for ambulatory drug infusion pump|
    TW200403408A|2002-08-01|2004-03-01|Baxter Int|Vacuum demand flow valve|
    US6579255B2|2001-07-31|2003-06-17|Advanced Medical Optics, Inc.|Pressurized flow of fluid into the eye using pump and pressure measurement system|
    US6599277B2|2001-11-30|2003-07-29|Bausch & Lomb Incorporated|Aspiration flow meter and control|
    US6875221B2|2001-12-14|2005-04-05|Bausch & Lomb Incorporated|Turbine driven vitrectomy cutter|
    US6908451B2|2002-04-25|2005-06-21|Alcon, Inc.|Liquid venting surgical system|
    US7070578B2|2002-04-25|2006-07-04|Alcon, Inc.|Surgical cassette latching mechanism|
    US20030204166A1|2002-04-25|2003-10-30|Sorensen Gary P.|Liquid venting surgical cassette|
    US20030225363A1|2002-05-28|2003-12-04|Raphael Gordon|Surgical cassette|
    US20040036386A1|2002-08-26|2004-02-26|Olivera Argelio M.|Surgical console|
    FR2845452B1|2002-10-04|2005-09-23|Vygon|TAP WITH INDEXABLE ROTATING KEY.|
    US7175612B2|2003-02-26|2007-02-13|C.R. Bard, Inc.|Suction limiting device with variable control|
    GB2403413A|2003-07-02|2005-01-05|Univ Sheffield|Measurement during surgery, especially eye surgery|
    US20050070871A1|2003-09-29|2005-03-31|Lawton Bruce Edward|Peristaltic pump cartridge including an aspirant collection bag for use in ophthalmic surgery|
    US7168930B2|2003-09-29|2007-01-30|Bausch & Lomb Incorporated|Peristaltic pump with air venting via the movement of a pump head or a backing plate during surgery|
    US7604607B2|2003-09-29|2009-10-20|Bausch & Lomb Incorporated|Peristaltic pump fitment for attachment to an aspirant collection bag|
    CN1901965B|2003-12-29|2011-07-27|安尼马斯公司|Methods and systems for detecting an occlusion|
    US7297137B2|2004-03-22|2007-11-20|Alcon, Inc.|Method of detecting surgical events|
    US7645255B2|2004-03-22|2010-01-12|Alcon, Inc.|Method of controlling a surgical system based on irrigation flow|
    CA2567610A1|2004-05-24|2005-12-15|Hospira, Inc.|Combined flow rate, bubble and occlusion detector|
    US7092797B2|2004-05-25|2006-08-15|Sherwood Services Ag|Flow monitoring system for a flow control apparatus|
    US7063680B2|2004-09-09|2006-06-20|Alcon, Inc.|Surgical apparatus|
    US7704244B2|2004-09-09|2010-04-27|Alcon, Inc.|Surgical method|
    US20050285025A1|2004-06-29|2005-12-29|Mikhail Boukhny|Optical noninvasive pressure sensor|
    US20060078448A1|2004-10-11|2006-04-13|Holden Hugo R|Phacoemulsification machine with post-occlusion surge control system and related method|
    US7331462B2|2004-10-26|2008-02-19|Alcon, Inc.|Kit management system|
    US7758546B2|2005-01-28|2010-07-20|Alcon, Inc.|Variable flow device|
    AU2011253755B8|2005-03-21|2013-08-15|Johnson & Johnson Surgical Vision, Inc.|The application of vacuum as a method and mechanism for controlling eye chamber stability|
    US7670330B2|2005-03-21|2010-03-02|Abbott Medical Optics Inc.|Application of vacuum as a method and mechanism for controlling eye chamber stability|
    US7785316B2|2005-03-21|2010-08-31|Abbott Medical Optics Inc.|Application of a system parameter as a method and mechanism for controlling eye chamber stability|
    US8241242B2|2005-03-30|2012-08-14|Abbott Medical Optics Inc.|Phacoaspiration flow restrictor with bypass tube|
    US7524299B2|2005-06-21|2009-04-28|Alcon, Inc.|Aspiration control|
    US7648465B2|2005-06-28|2010-01-19|Alcon, Inc.|Method of testing a surgical system|
    US20070005002A1|2005-06-30|2007-01-04|Intuitive Surgical Inc.|Robotic surgical instruments for irrigation, aspiration, and blowing|
    WO2007008437A1|2005-07-07|2007-01-18|Alcon, Inc.|Surgical system|
    US7326183B2|2005-09-28|2008-02-05|Alcon, Inc.|Intraocular pressure control|
    US7713237B2|2005-09-28|2010-05-11|Alcon, Inc.|Surgical cassette for intraocular pressure control|
    US8011905B2|2005-11-17|2011-09-06|Novartis Ag|Surgical cassette|
    US20070129732A1|2005-11-28|2007-06-07|Jaime Zacharias|Spring-Mass Surgical System|
    US7559914B2|2005-12-14|2009-07-14|Alcon, Inc.|Priming a microsurgical system|
    US20070135760A1|2005-12-14|2007-06-14|Williams David L|Occlusion clearance in microsurgical system|
    US20070185514A1|2006-02-06|2007-08-09|Kirchhevel G L|Microsurgical instrument|
    US8079836B2|2006-03-01|2011-12-20|Novartis Ag|Method of operating a peristaltic pump|
    US7887521B2|2006-05-17|2011-02-15|Alcon Research, Ltd.|Ophthalmic injection system|
    US8303542B2|2006-06-10|2012-11-06|Bausch & Lomb Incorporated|Ophthalmic surgical cassette and system|
    WO2007143797A1|2006-06-16|2007-12-21|Holden, Jeannette|Control flow device|
    US20080125695A1|2006-06-23|2008-05-29|Hopkins Mark A|Reflux control in microsurgical system|
    US20080018488A1|2006-07-19|2008-01-24|Siemens Vdo Automotive Corporation|Enhanced gauge tracking system|
    US7921017B2|2006-07-20|2011-04-05|Abbott Medical Optics Inc|Systems and methods for voice control of a medical device|
    JP4749969B2|2006-08-01|2011-08-17|株式会社ニデック|Perfusion suction device|
    CN200998362Y|2006-08-30|2008-01-02|周克俭|Cataract operation attraction flow regulation valve|
    US8652086B2|2006-09-08|2014-02-18|Abbott Medical Optics Inc.|Systems and methods for power and flow rate control|
    EP1897568B1|2006-09-08|2010-06-23|Carl Zeiss Surgical GmbH|Surgical system|
    US20080086093A1|2006-09-18|2008-04-10|Steppe Dennis L|Automatic stop cock valve|
    US9121509B2|2006-09-26|2015-09-01|Novartis Ag|Valve that is normally closed in the free state|
    US20080082077A1|2006-09-29|2008-04-03|David Lloyd Williams|System and method for flow rate control|
    RU2333011C1|2006-10-26|2008-09-10|Государственное образовательное учреждение высшего профессионального образования "Северный государственный медицинский университет" Федерального агентства по здравоохранению и социальному развитию" |Device for crushing and aspirating clots from cavity|
    US7981074B2|2006-11-02|2011-07-19|Novartis Ag|Irrigation/aspiration system|
    US8491528B2|2006-11-09|2013-07-23|Abbott Medical Optics Inc.|Critical alignment of fluidics cassettes|
    US10959881B2|2006-11-09|2021-03-30|Johnson & Johnson Surgical Vision, Inc.|Fluidics cassette for ocular surgical system|
    US9522221B2|2006-11-09|2016-12-20|Abbott Medical Optics Inc.|Fluidics cassette for ocular surgical system|
    US8852139B2|2006-11-09|2014-10-07|Abbott Medical Optics Inc.|Reversible peristaltic pump and other structures for reflux in eye surgery|
    CN200980878Y|2006-11-24|2007-11-28|贺定辉|Hand and foot double-controlled artificial respiration device|
    US20080208110A1|2007-02-26|2008-08-28|Sanchez Robert J|Infusion system with injection site|
    US8323271B2|2007-04-20|2012-12-04|Doheny Eye Institute|Sterile surgical tray|
    TWM322494U|2007-05-30|2007-11-21|Topmast Entpr Co Ltd|Structure of rapid-releasing valve|
    US8721594B2|2007-06-19|2014-05-13|Alcon Research, Ltd.|Post-occlusion chamber collapse canceling system for a surgical apparatus and method of use|
    ES2389581T3|2007-06-19|2012-10-29|Alcon Research, Ltd.|Collapse suppression system of a post-occlusion chamber for a surgical device|
    US20080319451A1|2007-06-21|2008-12-25|Jaime Zacharias|Post-occlusion chamber collapse suppressing system for a surgical apparatus and method of use|
    DE102007031722B4|2007-07-06|2011-06-16|Carl Zeiss Surgical Gmbh|Device for reducing pressure fluctuations in an aspiration branch and surgical system|
    US20090018488A1|2007-07-09|2009-01-15|Davis Sherman G|Method of Priming a Surgical System|
    US10342701B2|2007-08-13|2019-07-09|Johnson & Johnson Surgical Vision, Inc.|Systems and methods for phacoemulsification with vacuum based pumps|
    DE102007044790A1|2007-09-19|2009-04-02|Dieter Mann|One-hand device for eye surgery|
    DE102007053370B3|2007-11-09|2009-02-26|Carl Zeiss Surgical Gmbh|Surgical system for controlling fluid|
    US9452288B2|2007-12-06|2016-09-27|Boston Scientific Neuromodulation Corporation|Multimodal neurostimulation systems and methods|
    WO2009076717A1|2007-12-19|2009-06-25|Opto Global Holdings Pty. Ltd.|Control flow devices, methods, and systems|
    US8579851B2|2007-12-20|2013-11-12|Bausch & Lomb Incorporated|Surgical system having means for isolating vacuum pump|
    US8246579B2|2007-12-20|2012-08-21|Bausch & Lomb Incorporated|Surgical system having means for pressurizing venting valve|
    US9314553B2|2008-01-10|2016-04-19|Alcon Research, Ltd.|Surgical system|
    US20090247938A1|2008-03-28|2009-10-01|Buboltz David C|Intraoperative hypotony mitigation|
    US8460324B2|2008-04-15|2013-06-11|Abbott Medical Optics Inc.|High speed pneumatic vitrectomy control|
    US7811318B2|2008-04-23|2010-10-12|Syncardia Systems, Inc.|Apparatus and method for pneumatically driving an implantable medical device|
    DE102008025159A1|2008-05-26|2009-12-10|Osram Opto Semiconductors Gmbh|Semiconductor device, reflected light barrier and method for producing a housing|
    DE102008026014B4|2008-05-30|2019-03-21|Carl Zeiss Meditec Ag|Surgical system|
    EP2373266B1|2008-11-07|2020-04-29|Johnson & Johnson Surgical Vision, Inc.|Surgical cassette apparatus|
    US10219940B2|2008-11-07|2019-03-05|Johnson & Johnson Surgical Vision, Inc.|Automatically pulsing different aspiration levels to an ocular probe|
    US8439874B2|2008-11-21|2013-05-14|Bausch & Lomb Incorporated|Apparatus and method for controlling a vacuum source to establish fluid flow|
    US8162919B2|2008-12-08|2012-04-24|Bausch & Lomb Incorporated|Flow control system based on leakage|
    US8854221B2|2008-12-19|2014-10-07|Bausch & Lomb Incorporated|System to identify viscosity of aspirated material during ophthalmic surgery|
    US8287485B2|2009-01-28|2012-10-16|Olympus Medical Systems Corp.|Treatment system for surgery and control method of treatment system for surgery|
    EP2393437B1|2009-01-30|2017-04-19|Cook Medical Technologies LLC|Medical device|
    US8052656B2|2009-02-10|2011-11-08|Tyco Healthcare Group Lp|Enteral feeding system|
    DE102009009231B9|2009-02-17|2013-06-27|Human Med Ag|Apparatus and method for delivering a fluid to a surgical site for medical purposes|
    US8378837B2|2009-02-20|2013-02-19|Hospira, Inc.|Occlusion detection system|
    CA2754773C|2009-03-09|2017-06-13|Thermedx, Llc|Surgical fluid management system having default operating parameters associated with a plurality of medical procedures|
    ES2617129T3|2009-04-23|2017-06-15|Fresenius Medical Care Deutschland Gmbh|External functional device and system|
    EP2421584B1|2009-04-23|2016-04-13|Fresenius Medical Care Deutschland GmbH|Air separator, external functional device, blood circulatory system and treatment device|
    PL2427228T3|2009-05-06|2013-08-30|Alcon Res Ltd|Multiple segmented peristaltic pump and cassette|
    AU2010245667B2|2009-05-08|2015-03-12|Johnson & Johnson Surgical Vision, Inc.|Self-learning engine for the refinement and optimization of surgical settings|
    US7806865B1|2009-05-20|2010-10-05|Alcon Research, Ltd.|Pressurized irrigation squeeze band|
    BR112012000934A2|2009-07-13|2016-12-20|Nestec Sa|cassettes and methods of use of these|
    US8876751B2|2009-08-06|2014-11-04|Alcon Research, Ltd.|Phacoemulsification handpiece pressure booster|
    DE102009055709A1|2009-11-26|2011-06-01|Geuder Ag|Device for aspirating liquid from the human or animal body|
    US20110144567A1|2009-12-15|2011-06-16|Alcon Research, Ltd.|Phacoemulsification Hand Piece With Integrated Aspiration Pump and Cartridge|
    NL2004308C2|2010-02-26|2011-08-30|D O R C Dutch Ophthalmic Res Ct International B V|An ophthalmic system, a method and a computer program product.|
    US8905930B2|2010-05-20|2014-12-09|Alcon Research, Ltd.|Infusion pressure control using blood pressure|
    US8287486B2|2010-05-25|2012-10-16|Alcon Research, Ltd.|Infusion pressure monitoring system|
    US20110313343A1|2010-06-18|2011-12-22|Alcon Research, Ltd.|Phacoemulsification Fluidics System Having a Single Pump Head|
    US8136779B2|2010-07-27|2012-03-20|Alcon Research, Ltd.|Mounting arrangement for a pressurized irrigation system|
    DE102010047010B4|2010-09-30|2017-03-09|Carl Zeiss Meditec Ag|Control device for an ophthalmic surgical system|
    EP2658488A1|2010-12-31|2013-11-06|Bausch & Lomb Incorporated|Ophthalmic surgical systems having intraocular pressure stabilizing apparatus|
    WO2012109198A1|2011-02-07|2012-08-16|Brigham And Women's Hospital, Inc.|Medical aspiration apparatus|
    EP2486883B1|2011-02-14|2014-04-23|Erbe Elektromedizin GmbH|Supply device|
    DE102011052196B4|2011-07-27|2017-06-08|MAQUET GmbH|Device for aspirating liquids and / or particles from body orifices|
    BR112015004855B1|2012-09-04|2021-09-14|Medlogics, Inc|TISSUE REMOVAL DEVICES|
    US9393152B2|2011-09-19|2016-07-19|Abbott Medical Optics Inc.|Systems and methods for controlling vacuum within phacoemulsification systems|
    IN2014CN04341A|2011-12-08|2015-09-04|Alcon Res Ltd|
    US9597229B2|2013-03-15|2017-03-21|Abbott Medical Optics Inc.|Phacoemulsification flow rate detection system and method|
    US9549850B2|2013-04-26|2017-01-24|Novartis Ag|Partial venting system for occlusion surge mitigation|
    CN203861644U|2014-06-05|2014-10-08|秦皇岛市妇幼保健院|Three-way aspirator|IN2014CN04341A|2011-12-08|2015-09-04|Alcon Res Ltd|
    US9549850B2|2013-04-26|2017-01-24|Novartis Ag|Partial venting system for occlusion surge mitigation|
    US10137034B2|2013-11-26|2018-11-27|Novartis Ag|Pressure-sensing vitrectomy surgical systems and methods|
    US10537471B2|2014-04-17|2020-01-21|Novartis Ag|Hydraulic pump for ophthalmic surgery|
    CA2965504C|2014-10-24|2020-01-07|Integrated Surgical LLC|Suction device for surgical instruments|
    US9931447B2|2014-12-16|2018-04-03|Novartis Ag|Quick-opening vent valve for phaco fluidics aspiration system|
    US9549851B2|2015-01-28|2017-01-24|Novartis Ag|Surgical hand piece with integrated pressure sensor|
    US10926007B2|2015-07-13|2021-02-23|Conmed Corporation|Surgical suction device that uses positive pressure gas|
    US10821212B2|2015-07-13|2020-11-03|Conmed Corporation|Surgical suction device that uses positive pressure gas|
    US11051978B2|2016-05-10|2021-07-06|Alcon Inc.|Automated aspiration throttling in vitreoretinal surgery|
    US10702415B2|2016-08-18|2020-07-07|Alcon Inc.|Surgical apparatus including aspiration device sensors|
    JP6812721B2|2016-09-29|2021-01-13|株式会社ニデック|Ophthalmic equipment|
    US11071816B2|2017-10-04|2021-07-27|Johnson & Johnson Surgical Vision, Inc.|System, apparatus and method for monitoring anterior chamber intraoperative intraocular pressure|
    US20190099526A1|2017-10-04|2019-04-04|Abbott Medical Optics Inc.|Advanced Occlusion Management Methods for a Phacoemulsification System|
    US11116878B2|2017-11-16|2021-09-14|Alcon Inc.|Fluidics aspiration system|
    US11065371B2|2017-12-14|2021-07-20|Johnson & Johnson Surgical Vision, Inc.|Flow restrictor for surgical device|
    CN108670547B|2018-06-07|2020-12-04|河源光明眼科医院有限公司|Cataract surgery device|
    CA3113980A1|2018-09-24|2020-04-02|Stryker Corporation|Systems and methods for improving control responsiveness during aspiration|
    CN109602963B|2018-12-29|2021-04-13|捷锐企业有限公司|Oxygen uptake and negative pressure suction integrated module|
    RU2720821C1|2019-05-21|2020-05-13|Александр Николаевич Епихин|System for irrigation and aspiration of ophthalmic apparatus for cataract and vitreal surgery|
    WO2021124146A1|2019-12-17|2021-06-24|Johnson & Johnson Surgical Vision, Inc.|Rotary valve configuration for a surgical cassette|
    US20220008251A1|2020-07-13|2022-01-13|Johnson & Johnson Surgical Vision, Inc.|Aspiration bypass control in a phacoemulsification probe|
    法律状态:
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-08| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-03-17| B25A| Requested transfer of rights approved|Owner name: ALCON RESEARCH, LLC (US) |
    2020-07-28| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-11-24| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 27/11/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201161568220P| true| 2011-12-08|2011-12-08|
    US61/568,220|2011-12-08|
    PCT/US2012/066594|WO2013085745A1|2011-12-08|2012-11-27|Selectively moveable valve elements for aspiration and irrigation circuits|BR122019028274-9A| BR122019028274B1|2011-12-08|2012-11-27|suction circuit for a fluid system|
    [返回顶部]