• 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:
    SURGICAL CONSOLE, AND METHOD FOR ADJUSTING A VALVE OF A PNEUMATIC SURGICAL SYSTEM. In various configurations, a pneumatic system valve for a surgical console can be controlled by a controller configured to adjust the valve operating cycle (VDC) of the valve to reduce the difference between the differential pressure of the valve and the desired differential pressure. In some configurations, the average differential pressures can be detected and retransmitted from a pressure sensor, coupled to one or more valve ports to the controller. The controller can compare the average differential pressure measured against the desired average differential pressure (received from the user). The controller can then determine the modified VDC to reduce the difference between the desired average differential pressure and the measured average differential pressure. In some configurations, the desired average differential pressure can be determined based on an input provided by the surgical console user.
    公开号:BR112012013974B1
    申请号:R112012013974-6
    申请日:2010-11-11
    公开日:2020-10-13
    发明作者:Shawn X. Gao；Mark A. Hopkins
    申请人:Alcon Research, Llc；
    IPC主号:
    专利说明:

    Field of the Invention
    [0001] The present invention generally relates to pneumatic surgical systems. More particularly, but in no way limiting, the present invention relates to pneumatic generation for surgical systems. Description of the Related Art
    [0002] Vitro-retinal procedures can include a variety of procedures performed to restore, preserve, and improve vision. Vitreous-retinal procedures may be appropriate to treat many serious fundus conditions. Vitro-retinal procedures can treat eye conditions, such as age-related macular degeneration (AMD), diabetic retinopathy, diabetic vitreous hemorrhage, macular puncture, retinal detachment, epinephrine membrane, CMV retinitis, and many other ophthalmic conditions.
    [0003] The vitreous humor is a normally clear gel substance that fills the center of the eye, occupying approximately 2/3 of the volume of the eye, by virtue of its shape, and the vitreous humor is formed even before birth. Certain problems affecting the back of the eye may require a vitrectomy, that is, the surgical removal of the vitreous humor.
    [0004] Vitrectomy can be performed to remove blood and particles from the eyes, remove scar tissue, or relieve retinal traction. Blood, inflammatory cells, and scar tissue can distort the light that passes through the eye to the retina, causing blurred vision. The vitreous humor can also be removed if you are dislocating the retina from its normal position. Some common eye conditions that require vitrectomy include complications from diabetic retinopathy, such as retinal detachment or bleeding, macular fact, retinal detachment, pre-retinal membrane fibrosis, bleeding within the eye (vitreous humor hemorrhage), injuries or infections, and certain problems related to previous eye surgery.
    [0005] The retinal surgeon can perform a vitrectomy with a microscope and lenses specially designed to provide a clear image of the back of the eye. Several tiny incisions of a few millimeters in length can be made in the sclera. The retinal surgeon can insert instruments through the incision, such as a fiber optic light source, to illuminate the inside of the eye, an infusion line to maintain the shape of the eye during surgery, and instruments to cut and remove the vitreous. . In a vitrectomy, the surgeon makes three tiny incisions in the eye for three separate instruments. These incisions can be made in the flat part of the eye, located just behind the iris, but in front of the retina. Instruments passing through these incisions may include a light tube, an infusion line, and a vitrectomy cutter. The light tube is equivalent to a high intensity microscopic flashlight for use inside the eye. The infusion line can be used to replace the fluid in the eye, and maintain the appropriate pressure within the eye. The vector, that is, a device for cutting the vitreous, operates as a tiny guillotine, having a microscopic cutter, to remove the vitreous gel in a controlled manner. This can prevent significant retinal traction during removal.
    [0006] The surgical machine used to perform a vitrectomy and other surgeries on the back of the eye is very complex. Typically, the ophthalmic surgical machine includes a main console, to which a number of tools are connected. The main console provides electrical power to the connected tools and controls their operation.
    [0007] Connected tools typically include probes, scissors, forceps, lighting devices, vitrectors, and infusion lines. Each of these tools is typically connected to the main surgical console. A computer on the main surgical console can monitor and control the operation of these tools. These tools are also powered from the main surgical console. Some of these tools can be electric, while others can be pneumatic.
    [0008] To provide pneumatic energy to the various tools, the main surgical console includes a pneumatic or air distribution module. This pneumatic module can condition and supply compressed air or gas to energize the tools. The pneumatic module can be connected to a cylinder, containing pressurized gas. The pneumatic module can provide the appropriate gas pressure to operate the properly connected tools. Summary of the Invention
    [0009] In various configurations, a pneumatic system valve on a surgical console can be controlled by a controller that is configured to adjust a valve operating cycle (VDC) (the VDC being used to energize the valve) to reduce the difference between a differential pressure (ie average differential pressure) at the valve outlet and a desired differential pressure. In some configurations, the mean differential pressures can be detected and retransmitted from a pressure sensor coupled to one or more valve ports to the controller (ie, implementing a PI D controller algorithm (Proportional-Integral-Derivative controller)). The controller can compare the measured average differential pressure against the desired average differential pressure (that is, received from the user or determined based on information received from the user). The controller can then determine a modified VDC to reduce the difference between the average differential pressure and the measured average differential pressure. In some configurations, multiple interactions can be performed to reduce the difference between the measured average differential pressure and the desired average differential pressure. Brief Description of Drawings
    [00010] For a more complete understanding of the present invention, reference is made to the description that follows, taken in connection with the accompanying drawings, in which Figure 1 is a surgical console according to a configuration; Figure 2a is a diagram of a pneumatic system, with a differential pressure sensor, according to a configuration; Figure 2b is a pneumatic system diagram, with separate pressure sensors on each port, according to a configuration; Figure 3 illustrates a vitrectomy cutter, according to a configuration; Figure 4 illustrates a flow chart of a method for controlling a pneumatic valve, according to a configuration; Figure 5 illustrates a look-up table configuration to correlate a door operating cycle with the average differential pressure, according to a configuration; Figure 6 illustrates a pneumatic valve configuration, including two or more valves.
    [00011] It should be understood that the general description above and the detailed description that follows are of an exemplary and explanatory nature only, and are intended to provide a further explanation of the present invention, as claimed. Detailed Description of Settings
    [00012] The US Patent Application Publication "Pneumatic System for a Vitrector" Publication No. 2008/0149197, serial number 11 / 614,768 by Denis Turner, Robert Palini, Argelio Olivera, and Mark Hopkin filed on December 21, 2006 , incorporated by reference, in its entirety, as fully and completely established in this.
    [00013] Figure 1 illustrates a configuration of a surgical console 101 for a pneumatically powered ophthalmic surgical machine. Surgical console 101 can be configured to drive one or more pneumatic tools 101. Tools 103 can include, for example, scissors, vitrectors, forceps, and injection and extraction modules. Other tools 103 could also be used. In operation, the pneumatically powered ophthalmic surgical machine in figure 1 can assist the surgeon in performing various ophthalmic surgical procedures, such as a vitrectomy. A compressed gas, such as nitrogen, can power the surgical console 101 to power the tools 103. The surgical console 101 can include a video panel 101 to show information to a user (the video panel can incorporate a touch screen for receive user input). Surgical console 101 may also include a fluidic module (to support irrigation / suction functions) and port connectors 107 for attaching tools 103 (i.e., through pneumatic lines to be connected to tools 103).
    [00014] Figure 2 is a schematic diagram of a pneumatic system for a pneumatically powered vitrectomy machine. As seen in figure 2, the pneumatic system can include one or more pneumatic valves 217 coupling a pressure source 209 (ie, a regulated pressure source, such as an air cylinder or wall outlet for air supply) to the port outlet A 213 and outlet port B 215 (outlet port A 213 and outlet port B215 can be coupled to tool 103, via one or more port connectors 107). In some configurations, the pneumatic valve 217 can be controlled by the controller 205. In some configurations, the pressure of the pressure source 209 can also be regulated by the controller 205, and by a separate controller (i.e., inside the surgical console 101). Controller 205 can regulate pressure (to provide a balance between lower pressures to reduce air consumption and higher pressures to provide a higher cut rate and / or increase the dynamic range of available cut rates). In some configurations, the components of the pneumatic system can be incorporated into a pipe (machined from a metal, such as aluminum). The piping can be air-sealed, and include various components and couplings, and be able to withstand relatively high gas pressures. Pipes can be made up of several individual parts or be formed in a single part. In various configurations, the components of the pneumatic system (ie in the pipeline) can be incorporated into the surgical console 101.
    [00015] In some configurations, the pneumatic valve 217 can be a four-way valve. Other valve configurations are also contemplated. Valve 217 may include a solenoid, which moves valve 217, to a two-position (see figures 2a-2b), driven by control signals from controller 205. In a first position, pneumatic valve 215 provides pneumatic power for the cutting probe 225, while venting pressurized gas through outlet port A 213 through the damper 227. In a second position, valve 217 can provide pneumatic energy for a tool 103 (i.e., cutting probe 225). Thus, when the pneumatic valve is in the first position, the first chamber 229 of the double chamber 223 can be loaded, while the second chamber 231 can be unloaded. When the pneumatic valve 217 is in the second position, the second chamber 231 can be loaded, while the first chamber 229 can be unloaded.
    [00016] As seen in figure 3, the cutting probe 225 acts as a cutting device. The cutting probe 225 can move reciprocally inside the outer tube 103 with the cutter port 301 (that is, the cutting probe 225 can be moved by a diaphragm 225, which in turn oscillates when the gas pressurized is directed alternately to the outlet ports A and B (to the respective chambers of the double chamber 223). In some configurations, the cutting probe 225 can be connected to outlet ports A and B via tube 219 (separate tubes can also be used for each port). When cutting probe 225 moves back and forth, cutting probe 225 can alternately open and close cutting door 301 with the sharp tip of cutting probe 225. Each cycle of cutting probe 225 through the outer tube 30 can cut through a material, such as the vitreous, at the cutting door 301, when the cutting probe 225 is closing. A door operation cycle (PDC) of 49% indicates that cutting door 301 is open 49% of the cycle time (and closed 51% of the cycle time - the cycle time being, for example, the amount of time between successive openings of the cutting door 301).
    [00017] In some configurations, the valve operating cycle (VDC) can include the amount of time that the pneumatic valve 217 is in the first and second positions. In some configurations, the cutting rate of the cutting probe 225 can be controlled by controller 205, through valve 217. For example, to provide a cutting rate of 2500 cuts per minute, controller 205 can direct the pneumatic valve 217 to supply pressurized air alternately to port A (second channel) and port B (first channel) at a rate of approximately 24 ms per cycle. To obtain the cut rate of 2500 cuts per minute, the two pneumatic channels can start / close every 24 ms (2500 cuts / minute or 1 minute / 2500 cuts * 60 seconds / 1 minute = 0.024 seconds / cut = 24 ms / cut) that provides opening for 12 ms for each channel. In some configurations, the transition time to effectively open and close channels can use part of the cycle time. For example, the second pneumatic channel (that is, via port A 213 of the pneumatic valve 217) may take 4 ms to open (while the first pneumatic channel is closing) and 2 ms to close (while the first pneumatic channel is opening), o for a total transition time for a 6 ms 24 ms cycle. Other transition times are also contemplated. Because of the transition time, the valve can effectively remain open for only 8 ms (12 ms - 4 ms) for the second channel, while closed for the first channel, and can be closed for 10 ms (12 ms - 2 ms) for the second channel while open to the first channel. This difference of 8 ms versus 10 ms between the times of supplying pressurized air to the second channel and the first channel can result in an unbalanced differential pressure in the two channels. In some configurations, it may be desirable that the lengths of time to open the two channels are approximately equal (in the case of 2500 cuts / minute, they must open effectively for (24ms - 6 ms) / 2 = 9 ms).
    [00018] If the open / close transition times are constant for all 217 pneumatic valves, then the controller can be pre-programmed with a fixed valve operating cycle for approximately equal effective open time durations for both channels, with based on a standard 217 pneumatic valve. For example, the nominal opening time can be set to 13 ms for the second channel and 11 ms for the first channel. Thus, in this example, excluding the transition time, the effective opening time for the second channel can be 13 ms - 4 ms = 9 ms and the effective opening time for the first channel can be 11 ms - 2 ms = 9 ms (similar to the second channel). However, because the transition time varies between the various pneumatic valves 217 (because of manufacturing variations, flow restrictions, temperature, aging, etc. of the pneumatic valve 217) a canned cycle of valve operation can failing to compensate for imbalances. For example, a different valve may take 3 ms (instead of 4 ms) to open the second channel (while the first pneumatic channel is closing) and 2 ms to close the second channel (while the first pneumatic channel is opening). If the same valve operating cycle (that is, a nominal opening time of 13 ms for the second channel, and the nominal opening time of 11 ms for the first channel) is applied to this second example of valve, the time effective opening time for the second pneumatic channel of the second valve would be 13 ms - 3 ms = 10 ms, and the effective opening time for the first channel would be 11 ms - 2 ms = 9 ms. Therefore, the valve operating cycle used for the previous valve example caused the second pneumatic channel to remain open an additional 1 ms (or 11% more) time than the first pneumatic channel for the valve in the second example. The difference can result in an imbalance between the two pneumatic channels, and cause less desirable performance. Similarly, a valve operating cycle may not adequately compensate for the imbalance caused by flow restriction / resistance variations in the two channels from console to console.
    [00019] In some configurations, the effects of valve variations can be dynamically compensated by monitoring the pressure waveform (ie, average differential pressures 207 detected over the valve's operating time by the pressure sensor 211 (figure 2a ) or calculated by the controller using pressure information from pressure sensors 212a, 212b (figure 2b)) at valve outlet 217. Pressure information can include, for example, waveforms detected on pressure sensors 212a, 212b or pressure readings provided by pressure sensors 212a, 212b (other pressure information is also possible). The pressure sensors 211a, 211b can include a pressure transducer, capable of reading the pressure of the compressed gas, and sending an electrical signal, containing information regarding the pressure of the compressed gas, to the controller 205. The pressure waveform (which can indicate the actual VDC) can be monitored (periodically or continuously monitored) during the time of operation. The average differential pressures 207 can be used by controller 205 to compensate for valve variations by modifying the VDC of the valve to reduce the difference between the effective differential pressures and the desired differential pressure. Thus, in some configurations, a closed-loop solution may include monitoring the average differential pressure at the outlet of the pneumatic valve 217 (differential pressure between port A 213 and port B 215) and using the average differential pressure 207 to determine specific information to control the VDC. In some configurations, the average differential pressure 207 over a cycle period (1 / cut-off) can relate directly to the VDC and be used by controller 205 to dynamically adjust the VDC of the control signal sent to the pneumatic valve 217. In some configurations, an effective differential pressure may not be calculated, but instead the controller can compare the pressure information from pressure sensors 212a, 212b to dynamically adjust the VDC. For example, a comparison of pressure waveforms (or average pressures) from ports A and B can indicate a difference that can be found by adjusting the VDC. Other VDC adjustments are also possible.
    [00020] Initially, a desired differential pressure (between port A and port B) can be determined based on a user input (that is, received through a surgical console user interface) or a system default stored in the surgical console memory 101, before valve operation. During valve operation, controller 205 can modify the valve operating cycle of valve 217, based on the effective differential pressure detected / calculated. For example, pressure sensor 211 can detect a pressure difference between port A 213 and port B 215 and send the signal indicating the pressure difference to controller 205. In some configurations, pressure sensor 211 can calculate the pressure 207 differential pressure based on the detected differential pressure waveform, or pressure sensor 211 can relay the detected pressure waveform to controller 205, and controller 205 can determine the average differential pressure 207. In some configurations, the mean differential pressure 207 can be sent to controller 205 as a signal that controller 205 can interpret to obtain pressure (for example, be used to obtain other values relating to pressure). Although in figure 2a only one pressure sensor 211 is shown, in some configurations (as seen in figure 2b), each of port A 213 and port B 215 may have separate pressure sensors (pressure sensors 212a, 212b) that are communicate with controller 205. In some configurations, the controller can receive pressure information from pressure sensors 212a, 212b, calculate the differential waveform between the two ports, and then determine the average differential pressure from the differential wave. In another example, the controller can determine the variation of each pressure sensor output waveform to be used to control the valve operating cycle of valve 217 (that is, the controller can compare pressure information from the 212ai, 212b pressure sensors to determine the average difference between the two door pressures). These differential pressure / average pressure differences can be used to determine how to dynamically adjust the VDC.
    [00021] In some configurations, controller 205 can determine time intervals (which correspond to the modified valve operating cycle) to signal valve 217 to be in the first and second positions, to obtain the desired average differential pressure between port A and port B. By applying a valve operating cycle adjusted to the cycle times for the pneumatic channels, the pneumatic channels can be actuated during the total cycle time for specific effective opening times. As noted above, a 50% valve operating cycle can correspond to applying a signal (ie, energizing the valve to the first position) for approximately the same amount of time that the signal is not applied (ie, de-energizing the valve). valve to the second position). An adjustment of 1% can result in a 51% valve operating cycle, which corresponds to the application of a signal to energize (to the first position) the valve for approximately 51% of the total cycle time (and 49% of the time total in which no signal is applied (to place the valve in the second position)). The 51% longer valve operating cycle can compensate, for example, for a valve that takes longer to move to the first position than to the second position, and / or a console that has a restriction / resistance to flow more high in the channel connecting the first valve position. In some configurations, the valve duty cycle can be adjusted for various console characteristics (that is, to compensate for different transition times for the various valves and variations in restriction / flow resistance of various consoles).
    [00022] In various configurations, controller 205 can be configured to receive signals from a pressure sensor 211 (or pressure sensors 212a, 212b) via electronic interface (electrical conductors, such as wires, busbars, electrical tracks, etc.). Controller 205 can also be configured to send output signals via electronic interface to pneumatic valve 217. These output signals allow controller 205 to control the operation of pneumatic valve 217. Controller 205 may include an integrated circuit, capable of carrying out logic functions. In this way, the controller 205 can incorporate the form of a standard integrated circuit package with power input and output pins. In various configurations, controller 205 may include a valve controller or controller of a target device. In some configurations, controller 205 may perform specific control functions with respect to a specific device, such as a valve. In some configurations, controller 205 may be a microprocessor. In this case, controller 205 can be programmable, so that it works to control valves, as well as other components of console 101. In some configurations, controller 205 is not a programmable microprocessor, but instead an application specific controller, configured to control different valves, which perform different functions.
    [00023] Figure 4 illustrates a flow chart of a method configuration for dynamically controlling the pneumatic valve 217. The elements provided in the flow chart are for illustrative purposes only. Several elements provided may be omitted, additional elements may be added, and / or several elements may be executed in an order different from that provided below.
    [00024] At 401, a user can select a desired cut-off rate and / or PDC (that is, based on surgical needs). For example, a user can provide a cut rate of 2500 cuts per minute and a PDC of 50%.
    [001] At 403, the desired PDC can be converted to a desired average differential pressure (or other differential values / pressures related to the differential pressure between ports A and B). In some configurations, the desired PDC can be converted to a desired average differential pressure based on a pre-established lookup table (see figure 5), equation, etc. In some configurations, the user can enter the desired average differential pressure at the interface on the video panel 103. In some configurations, the PDC and the desired average differential pressure can be provided at a default value for example, 50% PDC of 50%, and the desired average differential pressure of 0 psi (pounds per square inch). The average differential pressure can refer to an average differential pressure between port A and port B (taken as an average over time of the differential pressure waveform between port A and port B) or the difference between the mean pressure of port A and mean pressure of port B. For example, the PDC and the corresponding mean differential pressures can be determined experimentally by a trial and error method, etc., for a valve. In some configurations, other characteristics can be used to determine the desired average differential pressure (ie, type of tool attached, etc.).
    [00025] In 405, pneumatic valve 217 can be controlled by controller 205 to operate tool 103. In some configurations, controller 205 can initially control valve 217 using a default valve operating cycle (ie, 50%). In some configurations, the 205 controller can receive the desired average differential pressure from a variation converter (that is, an electrical circuit configured to convert an electronic signal, indicative of the desired PDC, to the corresponding desired average differential pressure, with based on an internal lookup table (ie see figure 5)). In some configurations, controller 250 may receive other desired performance characteristics, in addition to, or instead of receiving, the desired average differential pressure (that is, the controller may receive the desired difference between the average pressure waveforms of port A and port B or receive the desired variation of port A pressure and port B pressure, from the average desired pressure for both ports).
    [00026] At 407, the average differential pressures 207 can be relayed from pressure sensor 211 to controller 210 (or calculated by controller 205 using pressure information from pressure sensors 212a, 212b). For example, the average differential pressures 207 can be relayed by pressure sensors 212a, 212b every 100 ms (or pressure information (ie pressure variations) can be relayed by pressure sensors 212a, 212b and the average differential pressure 207 can be calculated by controller 205). Other time intervals can also be contemplated (for example, every 5 seconds). In some configurations, the pressure sensor 211 can calculate the average differential pressure based on the detected differential pressure waveform or the pressure sensor 211 can relay the detected differential pressure waveform (which can include one or more differential pressures between port A and port B) to controller 205, and controller 205 can determine the average differential pressure 207. In some configurations, pressure sensors 212a, 212b coupled to ports A and B can relay detected pressure information (ie ie, pressure variation, pressure waveform, etc.) to controller 205, and controller 205 can determine the average differential pressure for the ports (or compare the pressure waveforms without having to calculate the average differential pressure).
    [00027] In 409, controller 205 can compare the average differential pressure measured 207 (ie, received from pressure sensors or calculated using information from the pressure sensors) with the desired average differential pressure (ie, calculated / determined). nothing from information provided by the user, or by default) and determine the modified VDC. Controller 205 can determine the modified VDC to reduce the difference between the desired average differential pressure and the measured average differential pressure. For example, if pressure at port A is taken as positive pressure and pressure at port B is taken as negative pressure, then, for an ideal valve, the measured average differential pressure can be 0 psi. In this example, if the measured average differential pressure is positive (ie +2 psi), the measured average differential pressure may indicate that port A remains open longer than port B during a given cycle (resulting in port A is charged at a higher pressure when opened than the pressure at which port B is loaded when opened). If the desired average differential pressure is set to 0 psi, the VDC (which indicates the percentage in time that controller 205 signals port A to be vented) can be increased by controller 205 (for example, from 50% to 51%). In some configurations, the controller 205 to increase or decrease the VDC according to a default setting provided by the user. In some configurations, the amount of VDC adjustment in response to the difference between the desired average differential pressure and the measured differential pressure can be experimentally determined for valve 217. For example, it can be experimentally determined that the VDC is increased by 1% for each +1.2 difference between the measured average differential pressure and the desired average differential pressure (other reasons are also considered). This information can be stored in the form of an equation or table accessible to controller 205. In another example, controller 205 can increase the VDC by an increment provided by the user (such as 0.5), if the average differential pressure is positive and decreases the VDC of an increment provided by the user, if the average differential pressure is negative. In some configurations, controller 205 can adjust VDC if the measured average differential pressure is within a range provided by the user or default (ie, no adjustment will be provided, if the average differential pressure is within 1 psi of the average differential pressure desired). In some configurations, the user can provide several inputs for use by the controller (that is, through the touch screen 109). For example, the user can enter a ratio of -1% VDC for each 1.2% difference between the measured average differential pressure and the desired average differential pressure. In some configurations, the controller may not actually calculate differential pressures, but instead compare pressure waveforms from ports A and B (that is, as determined by pressure sensors 212a, 212b), or with respect to the desired waveforms to determine how to adjust the VDC. For example, if the desired pressure waveform is on average 2 psi greater than the desired pressure waveform (that is, stored in the system), the VDC can be adjusted without having to calculate the differential pressure. Other VDC adjustment techniques are also contemplated.
    [00028] In 411, the controller 205, can use the modified VDC to energize the pneumatic valve 217 (that is, the time to switch between the first and second positions).
    [00029] In 413, controller 205 can repeat the procedures for comparing the measured average differential pressure 207 against the desired average differential pressure (or related differential pressure variables / values) and determine a new modified VDC to minimize the difference between the pressure measured average differential 207 and the desired average differential pressure. For example, controller 205 may implement a PID controller algorithm (Proportional, Integral, Derivative) to adjust the valve operating cycle up or down, based on the direction of the new average differential pressure from the previous average differential pressure , receiving / calculating a new mean differential pressure in response to the modified valve operating cycle, etc. until the difference between the average differential pressure and the desired differential pressure is reduced (to a range provided by the user).
    [00030] In some configurations, the pneumatic management system may include one or more processors. The processor can include a single processing device or a plurality of processing devices. Such processing device can be a microprocessor, a controller (i.e. controller 205) (which can be a microcontroller), a digital signal processor, a microcomputer, a central processing unit, a programmable port arrangement, a logic device programmable, a state machine, a logic circuit, a control circuit, an analog circuit, a digital circuit, and / or devices that manipulate signals (analog and / or digital) based on operational instructions. A memory attached or built into the processor can be a single memory device or a plurality of memory devices. The memory device can be a read-only memory, a random access memory, a volatile memory, a non-volatile memory, a static memory, a dynamic memory, a flash memory, a cache memory, and / or any device that store digital information. It should be noted that when the process implements one or more of its functions via a state machine, an analog circuit, a digital circuit, and / or a logical circuit, the memory that stores the corresponding instructions can be incorporated (or external) to the circuit comprising the state machine, analog circuit, digital circuit, and / or logic circuit. The memory can store and the processor can execute operating instructions corresponding to at least some of the elements illustrated and described in association with the figures.
    [00031] As shown in figure 6, while several configurations have been described in this with respect to a pneumatic four-way valve, it should be understood that these configurations are also applicable to two or more valves in a coordinated manner to supply compressed gas to the valve pneumatic four-way to provide compressed gas to tool 103. For example, the "first port" and "second port" that have been described with respect to the pneumatic four-way valve, can instead be coupled to two or more separate valves (that is, the first port coupled to the first valve and the second port coupled to a second valve). The first valve and the second valve can be controlled together to provide compressed gas alternately to the first port and the second port. In some configurations, the pressure sensor can be attached to both the first port and the second port to determine the differential pressure (or each port can be attached to a separate pressure sensor, and separate pressures can be used to determine the average pressure ). The valve operating cycle, then, can be used in relation to two or more valves, to adjust the opening and closing times of the respective ports (controlling the separate valves according to the opening and closing times indicated in the cycle valve operation).
    [00032] Various modifications may be made to the present configurations by a person of ordinary skill in the art. Other configurations of the present invention will be apparent to those skilled in the art considering the present specification and the practice of the present invention described therein. It is intended that the present specification and incorporated examples are considered as exemplary only, and that the true scope and spirit of the present invention will be indicated by the following claims and their equivalents.
    权利要求:
    Claims (20)
    [0001]
    1. Surgical console (101) for a pneumatically powered surgical machine comprising: a pneumatic valve (217); at least a first port (213) and a second port (215) coupled to the valve (217), where the valve (217) is configured to provide pressurized gas alternately to each of the first port (213) and the second port (215); at least one pressure sensor (211, 212a, 212b) coupled to at least one of the first port (213) and the second port (215); and a controller (205) coupled to the pressure valve (217) and pressure sensors (s) (211, 212a, 212b), where the controller (205) is operable to control the opening and closing times of the valve channel, according to the valve operating cycle; characterized by the fact that the controller is configured to receive pressure data from at least one pressure sensor (211, 212a, 212b) to determine a differential pressure between the first port (213) and the second port (215); the controller (205) being configured to modify the valve operating cycle based on the pressure data received by determining a modified valve operating cycle (409) to reduce the difference between the determined differential pressure and a desired average differential pressure .
    [0002]
    2. Surgical console, according to claim 1, characterized by the fact that the controller (205) is configured to receive pressure data from at least one pressure sensor (211) for use in determining a differential pressure measured between the first port (213) and second port (215), where the controller is configured to modify the valve operating cycle based on the difference between the measured differential pressure and the desired average differential pressure.
    [0003]
    3. Surgical console, according to claim 1, characterized by the fact that the pneumatic valve (217) comprises two or more valves being controlled together to supply pressurized gas alternately to the first port (213) and the second port (215) , and controlling the opening / closing times of the valve channel according to the valve operating cycle comprises controlling the opening and closing times of the valve channel of two and more valves, according to the operating cycle of the valve. valve.
    [0004]
    4. Surgical console, according to claim 1, characterized by the fact that the time to open the valve corresponds to the time to open a first door (213), and in which the time to close a valve corresponds to a time to close the first door (213), in which closing the first door coincides with the opening of the second door (215), so that the pressurized air is directed by the valve either through the first door or the second door.
    [0005]
    5. Surgical console, according to claim 1, characterized by the fact that at least one pressure sensor (212a, 212b) comprises a differential pressure sensor coupled to the first port (213) and the second port (215) to determine the differential pressure between the first port (213) and the second port (215).
    [0006]
    6. Surgical console, according to claim 2, characterized by the fact that the controller (205) determines an average differential pressure measured between the first port (213) and the second port (215) and uses the average differential pressure measured for modify the valve operating cycle at least twice during a continuous valve operating interval.
    [0007]
    7. Surgical console, according to claim 6, characterized by the fact that the desired door operating cycle is received from a user through a surgical console user interface, and in which the door operating cycle is converted to mean differential pressure through a variation converter circuit (203).
    [0008]
    8. Surgical console, according to claim 1, characterized by the fact that the at least one pressure sensor (212a, 212b) comprises a first pressure sensor coupled to the first port (213) and a second pressure sensor coupled to the second port (215), and where the controller (205) is configured to compare pressure information from the first pressure sensor and the second pressure sensor to modify the valve operating cycle.
    [0009]
    9. Surgical console, according to claim 2, characterized by the fact that the measured differential pressure comprises a measured average differential pressure.
    [0010]
    10. Surgical console, according to claim 9, characterized by the fact that the valve (217) is configured to drive a pneumatic tool (103), and in which the surgical console (101) still comprises a pneumatic tool coupled to the console surgical, where the pneumatic tool (103) is a vitrectomy cutter (225).
    [0011]
    11. Surgical console, according to claim 1, characterized by the fact that the total valve time is approximately equal to the time to open the valve plus the time to close the valve for a valve cycle, and in which the valve operation is a percentage of the total valve time for the controller (205) to signal the valve to direct the gas through the first port (213).
    [0012]
    12. Surgical console, according to claim 1, characterized by the fact that the controller (205) regulates the pressure applied to the valve (217) to provide a balance between low pressures to reduce air consumption, and high pressures to accelerate cut rates, and increase the dynamic range of available cut rates.
    [0013]
    13. Method for adjusting a surgical pneumatic system valve (217) characterized by the fact that it comprises: operating a pneumatic system comprising a pneumatic valve configured to cycle between a first position and a second position (405), in which the pressurized gas is directed in a first port, when the valve is in the first position, and in which the pressurized gas is directed in a second port, when the valve is in the second position. receiving pressure information from at least one pressure sensor coupled to at least one first and second port; use the pressure information received to determine (407) a differential pressure between the first port and the second port; determining a modified valve operating cycle (409) to reduce the difference between the determined differential pressure and a desired average differential pressure; and adjust the time to open and close the valve (411) according to the modified valve operating cycle.
    [0014]
    14. Method according to claim 13, characterized in that the pneumatic valve (217) comprises two or more valves controlled together to supply pressurized gas alternately to the first port and the second port, in which first position comprises opening the first valve of the two or more valves, and wherein the second position comprises opening a second valve of the two or more valves.
    [0015]
    15. Method according to claim 13, characterized in that at least one pressure sensor (211) comprises a differential pressure sensor coupled to the first port (213) and the second port (215) to determine the differential pressure between the first door and the second door.
    [0016]
    16. Method according to claim 13, characterized by the fact that it further comprises determining a differential pressure between the first port (213) and the second port (215) and using the differential pressure to modify the valve operating cycle at least twice during the valve's continuous operation interval.
    [0017]
    17. Method, according to claim 13, characterized by the fact that it still comprises: receiving the desired average differential pressure from a user (401); receiving the desired door operation cycle from the user through a surgical console user interface (401); and converting the gate operating cycle (403) to an average differential pressure through a variation converter (203).
    [0018]
    18. Method according to claim 13, characterized in that receiving pressure information from at least one sensor comprises receiving pressure information from a first pressure sensor coupled to the first port (213) and receiving information pressure from a second pressure sensor coupled to the second port (215).
    [0019]
    19. Method according to claim 13, characterized by the fact that a total valve time is approximately equal to the valve opening time plus the valve closing time for a valve cycle, and in which the operating cycle of the valve is a percentage of the total valve time for the controller to signal the valve to direct the gas through the first port (213).
    [0020]
    20. Method according to claim 13, characterized in that the determined differential pressure is a determined average differential pressure, and in which determining the differential pressure comprises determining the average differential pressure between the first port (213) and the second (215) over a period of time.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112012013974B1|2020-10-13|surgical console for a pneumatically powered surgical machine and method for adjusting a surgical pneumatic system valve
    US9937077B2|2018-04-10|Pneumatic pressure output control by drive valve duty cycle calibration
    ES2386919T3|2012-09-06|Adjustable pneumatic system for a surgical machine
    US8308676B2|2012-11-13|Phaco thermal control apparatus and method
    KR20090031673A|2009-03-27|Reflux control in microsurgical system
    JP2010508075A|2010-03-18|Gas pressure monitor for aerodynamic surgical machines
    AU2011258776A1|2012-12-06|Feedback control of on/off pneumatic actuators
    JP6981999B2|2021-12-17|Automated viscous fluid control in vitreous retinal surgery
    JP2021514699A|2021-06-17|Gas mixing systems and methods in ophthalmic surgery equipment
    同族专利:
    公开号 | 公开日
    CA2781157A1|2011-06-16|
    AU2010328590A1|2012-06-14|
    CA2781157C|2018-01-02|
    RU2012128873A|2014-01-20|
    CN102652006B|2014-06-11|
    AU2010328590B2|2015-09-17|
    CN102652006A|2012-08-29|
    RU2556529C2|2015-07-10|
    EP2509549B1|2013-12-25|
    US8728108B2|2014-05-20|
    JP5711259B2|2015-04-30|
    US20110144675A1|2011-06-16|
    EP2509549A1|2012-10-17|
    BR112012013974A2|2016-06-07|
    JP2013513426A|2013-04-22|
    WO2011071655A1|2011-06-16|
    ES2442368T3|2014-02-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US812162A|1905-12-18|1906-02-06|Thomas Bemis|Pneumatic tube for store service.|
    US2016746A|1933-08-25|1935-10-08|Thomas H Ireland|Fluid heater|
    NL73735C|1949-06-30|
    GB792397A|1956-05-09|1958-03-26|Pneumatic Components Ltd|Improvements in or relating to tyre inflation hose equipment|
    US3084674A|1961-07-20|1963-04-09|Ingersoll Rand Co|Pneumatic system for multiple nut runner|
    US3601588A|1966-05-23|1971-08-24|Foxboro Co|Method and apparatus for adaptive control|
    FR1506385A|1966-09-16|1967-12-22|Sud Aviation|Method of attenuation and electro-hydraulic vibration attenuator for rotary wing aerodyne|
    US3515155A|1967-02-24|1970-06-02|Air Reduction|Gas mixture proportioner|
    US3646727A|1969-06-02|1972-03-07|Erich A Wachsmuth|Automatic compressor drain system|
    GB1281196A|1969-11-20|1972-07-12|Westland Aircraft Ltd|Improvements in or relating to pressure control systems|
    FR2117726B1|1970-12-10|1973-12-07|Aquitaine Petrole|
    US3815604A|1972-06-19|1974-06-11|Malley C O|Apparatus for intraocular surgery|
    US3867934A|1973-05-04|1975-02-25|Veriflo Corp|Pressure monitor for a lung ventilator|
    US3854382A|1973-06-20|1974-12-17|Sperry Rand Ltd|Hydraulic actuator controls|
    GB1417299A|1973-09-18|1975-12-10|Gulde Regelarmatuhren Kg|Method and apparatus for safe-guarding pipe-lines against inadmissibly high internal pressure by a control valve with a pneumatic drive|
    US4011869A|1975-08-01|1977-03-15|David Kopf Instruments|Tubular cutting instrument|
    GB1518720A|1975-11-21|1978-07-26|Ishikawajima Harima Heavy Ind|Hydraulic servomechanism|
    US4077567A|1976-06-18|1978-03-07|Universal Pneumatic Controls, Inc.|Pneumatic temperature reset differential pressure controller|
    US4086804A|1976-10-26|1978-05-02|Sperry Rand Corporation|Precision pneumatic pressure supply system|
    US4323064A|1976-10-26|1982-04-06|Puritan-Bennett Corporation|Volume ventilator|
    US4168707A|1977-06-13|1979-09-25|Douvas Nicholas G|Control apparatus for microsurgical instruments|
    US4335867A|1977-10-06|1982-06-22|Bihlmaier John A|Pneumatic-hydraulic actuator system|
    US4368734A|1978-01-27|1983-01-18|Surgical Design Corp.|Surgical instrument|
    DE2811345C2|1978-03-16|1986-12-11|Knorr-Bremse AG, 8000 München|Pressure regulators for pneumatic pressures, in particular in vehicles|
    JPS6243071B2|1978-12-18|1987-09-11|Nippon Denso Kk|
    US4373549A|1979-02-12|1983-02-15|Hewlett-Packard Company|Mass flow/pressure control system|
    FR2455766B1|1979-05-02|1985-09-06|Intertechnique Sa|PNEUMATIC DEVICE AND INSTALLATION FOR CREATING PRESSURE OR FLOW CYCLES|
    US4331130A|1980-06-27|1982-05-25|Lewicky Andrew O|Securing device to the cornea to prevent anterior chamber prolapse|
    US4590935A|1981-11-02|1986-05-27|Optikon Oftalmologia, S.P.A.|Control system for intraocular surgical device|
    GB2140871A|1983-06-03|1984-12-05|Bowthorpe Hellermann Ltd|Piston and cylinder actuator control|
    US4679583A|1984-04-19|1987-07-14|Robertshaw Controls Company|Pneumatic control system, control means therefor and method of making the same|
    BR8403165A|1984-06-28|1984-11-27|Jaime Roizenblatt|PNEUMATIC MODULE FOR INTRAOCULAR MICROSURGERY|
    US4678459A|1984-07-23|1987-07-07|E-Z-Em, Inc.|Irrigating, cutting and aspirating system for percutaneous surgery|
    US4706687A|1985-02-28|1987-11-17|Alcon Instrumentation, Inc.|Linear suction control system|
    US4757814A|1985-02-28|1988-07-19|Alcon Laboratories, Inc.|Proportional control for pneumatic cutting device|
    US4650462A|1985-07-29|1987-03-17|Minnesota Mining And Manufacturing Company|Irrigation system|
    US4810242A|1985-09-26|1989-03-07|Alcon Laboratories Inc.|Surgical cassette proximity sensing and latching apparatus|
    US4770654A|1985-09-26|1988-09-13|Alcon Laboratories Inc.|Multimedia apparatus for driving powered surgical instruments|
    US4622503A|1985-09-26|1986-11-11|Medical Instrument Development Laboratories, Inc.|Variable pneumatic output means for use with ophthalmic micro-surgical instruments|
    US4790816A|1985-09-26|1988-12-13|Allon Laboratories, Inc.|Surgical cassette proximity sensing and latching apparatus|
    US4696298A|1985-11-19|1987-09-29|Storz Instrument Company|Vitrectomy cutting mechanism|
    US4840111A|1986-01-31|1989-06-20|Moog Inc.|Energy-conserving regenerative-flow valves for hydraulic servomotors|
    US4933843A|1986-11-06|1990-06-12|Storz Instrument Company|Control system for ophthalmic surgical instruments|
    JPH01502972A|1987-03-18|1989-10-12|
    DE3708989C2|1987-03-19|1993-10-14|Festo Kg|Control device for a piston displaceable in a double-acting cylinder|
    US5239861A|1988-12-23|1993-08-31|Kabushiki Kaisha Komatsu Seisakusho|Device for indicating contamination degree of hydraulic circuit and method of judging the contamination degree|
    US5092178A|1989-04-28|1992-03-03|Pneumo Abex Corporation|Differential pressure sensor mechanisms|
    US5019035A|1989-06-07|1991-05-28|Alcon Surgical, Inc.|Cutting assembly for surgical cutting instrument|
    US5106364A|1989-07-07|1992-04-21|Kabushiki Kaisha Topcon|Surgical cutter|
    DE3925405A1|1989-08-01|1991-02-07|Vdo Schindling|Pressure control unit esp. for vehicle windscreen wiper - has solenoid controlled relief valve to control pressure in load stage|
    US5020315A|1989-08-08|1991-06-04|United Technologies Corporation|Multiple function fuel valve and system|
    US5024654A|1989-10-02|1991-06-18|Alcon Surgical, Inc.|Insulated infusion and aspiration probe|
    US5417246A|1989-10-27|1995-05-23|American Cyanamid Company|Pneumatic controls for ophthalmic surgical system|
    US5047008A|1989-10-27|1991-09-10|Storz Instrument Company|Vitrectomy probe|
    US5176628A|1989-10-27|1993-01-05|Alcon Surgical, Inc.|Vitreous cutter|
    US4985027A|1990-02-26|1991-01-15|Dressel Thomas D|Soft tissue aspiration device and method|
    US5138564A|1990-07-31|1992-08-11|Xerox Corporation|Automatic encoder calibration|
    US5094260A|1990-10-26|1992-03-10|Alcon Surgical, Inc.|Proportional valve and pressure control system|
    JPH06509258A|1991-07-31|1994-10-20|
    US5154207A|1991-08-02|1992-10-13|Mosier Industries, Inc.|Pressure control valve and transducer package|
    FI90035C|1992-02-07|1993-12-27|Valmet Paper Machinery Inc|RULL STOPPING OCH FOERFARANDE FOER ANVAENDNING DAERAV|
    US5217465A|1992-02-28|1993-06-08|Alcon Surgical, Inc.|Flexible and steerable aspiration tip for microsurgery|
    DE4232586A1|1992-09-23|1994-03-24|Mannesmann Ag|Switching valve with regulation of output pressure - has inlet valve stage that closes when output pressure exceeds reference with vent valve stage opening to control pressure|
    DE4241846C2|1992-12-11|1996-09-26|Danfoss As|Hydraulic system|
    US5403280A|1993-02-16|1995-04-04|Wang; James C.|Inflatable perfusion catheter|
    US5403276A|1993-02-16|1995-04-04|Danek Medical, Inc.|Apparatus for minimally invasive tissue removal|
    DE4315626C1|1993-05-11|1994-07-14|Rexroth Mannesmann Gmbh|Control for a hydraulic drive|
    US5829335A|1993-05-11|1998-11-03|Mannesmann Rexroth Gmbh|Control for hydraulic drive or actuator|
    JP2595450B2|1993-09-08|1997-04-02|日精樹脂工業株式会社|Method and apparatus for detecting abnormality of hydraulic system in molding machine|
    US5550685A|1993-10-22|1996-08-27|Syquest Technology, Inc.|Applying an adaptive feed-forward algorithm as a frequency selective filter in a closed loop disk drive servo system in order to compensate for periodic perturbations which otherwise appear in the servo system position error signal|
    US5380280A|1993-11-12|1995-01-10|Peterson; Erik W.|Aspiration system having pressure-controlled and flow-controlled modes|
    US5457625A|1994-04-13|1995-10-10|The M. W. Kellogg Company|Maximizing process production rates using permanent constraints|
    US5487725A|1994-05-12|1996-01-30|Syntec, Inc.|Pneumatic vitrectomy for retinal attachment|
    US5437241A|1994-06-08|1995-08-01|Pall Corporation|Differential pressure indicator|
    JP3679143B2|1994-06-30|2005-08-03|株式会社ニデック|Perfusion suction device|
    US5571248A|1995-03-10|1996-11-05|General Motors Corporation|Pressure regulator|
    US5630827A|1995-06-19|1997-05-20|Dutch Ophthalmic Research Center International Bv|Vitreous removing apparatus|
    JPH0942210A|1995-08-02|1997-02-10|Ckd Corp|Drive control device for cylinder|
    US5587536A|1995-08-17|1996-12-24|Rasmussen; John|Differential pressure sensing device for pneumatic cylinders|
    US5674194A|1995-10-25|1997-10-07|Alcon Laboratories Inc.|Process control system|
    US5989262A|1996-04-15|1999-11-23|Josephberg; Robert Gary|Sutureless pars plana vitrectomy tool|
    US5993409A|1996-11-27|1999-11-30|Surgin Surgical Instrumentation, Inc.|Needle for surgical use|
    US5808396A|1996-12-18|1998-09-15|Alcon Laboratories, Inc.|System and method for tuning and controlling an ultrasonic handpiece|
    US5791142A|1997-03-27|1998-08-11|Husco International, Inc.|Hydraulic control valve system with split pressure compensator|
    SE9701523L|1997-04-23|1998-06-22|Rudolf Westerberg Ab|Tvåhandsmanöversystem|
    JPH10339301A|1997-06-09|1998-12-22|Smc Corp|Control method of automatically controlled pneumatic device and automatically controlled pneumatic device|
    US5846257A|1997-08-15|1998-12-08|Nexus Medical System, Inc. Llc|Pressure sensor for a surgical system|
    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|
    DE19821420C1|1998-05-13|1999-10-21|Haldex Bremsen Gmbh & Co Kg|Pressurized air device for automobile pneumatic circuits|
    US6575264B2|1999-01-29|2003-06-10|Dana Corporation|Precision electro-hydraulic actuator positioning system|
    WO2000078371A1|1999-06-22|2000-12-28|Scieran Technologies, Inc.|An apparatus and method for performing ophthalmic procedures|
    US6162187A|1999-08-02|2000-12-19|Ethicon Endo-Surgery, Inc.|Fluid collection apparatus for a surgical device|
    US6514268B2|1999-08-30|2003-02-04|Alcon Universal Ltd.|Method of operating microsurgical instruments|
    US6155233A|1999-09-07|2000-12-05|Fasco Controls Corp.|Combination pressure sensor and regulator for direct injection diesel engine fuel system|
    US6575990B1|1999-10-21|2003-06-10|Medical Instrument Development Laboratories, Inc.|High speed vitreous cutting system|
    NL1013376C2|1999-10-22|2001-04-24|Dutch Ophthalmic Res Ct B V|Surgical cutting tool.|
    AU2001245365B8|2000-02-29|2005-11-03|Gen-Probe Incorporated|Fluid dispense and liquid surface verification system and method|
    US6443947B1|2000-03-01|2002-09-03|Alexei Marko|Device for thermal ablation of a cavity|
    US20010037689A1|2000-03-08|2001-11-08|Krouth Terrance F.|Hydraulic actuator piston measurement apparatus and method|
    US6450966B1|2000-05-03|2002-09-17|Datex-Ohmeda, Inc.|Method for non-invasive blood pressure cuff identification using deflation pressure measurements|
    US6504474B1|2000-07-12|2003-01-07|Deere & Company|Method and apparatus for detecting a restricted or bypassed transmission oil filter|
    US6485436B1|2000-08-10|2002-11-26|Csaba Truckai|Pressure-assisted biopsy needle apparatus and technique|
    US6561999B1|2000-09-29|2003-05-13|Alcon Universal Ltd.|Surgical cassette and consumables for combined ophthalmic surgical procedure|
    JP4021141B2|2000-10-20|2007-12-12|株式会社ニデック|Vitreous surgery device|
    US6758824B1|2000-11-06|2004-07-06|Suros Surgical Systems, Inc.|Biopsy apparatus|
    US6471853B1|2000-11-22|2002-10-29|Pti Technologies, Inc.|Prognostic health monitoring of fluidic systems using MEMS technology|
    US6568416B2|2001-02-28|2003-05-27|Brian L. Andersen|Fluid flow control system, fluid delivery and control system for a fluid delivery line, and method for controlling pressure oscillations within fluid of a fluid delivery line|
    US6779541B2|2001-10-12|2004-08-24|Smc Kabushiki Kaisha|Fluid pressure regulator|
    US7470277B2|2001-10-16|2008-12-30|Alcon, Inc.|Simultaneous proportional control of surgical parameters in a microsurgical system|
    WO2003046382A1|2001-11-19|2003-06-05|Luk Fahrzeug-Hydraulik Gmbh & Co. Kg|Determination of the piston stroke in a reciprocating piston machine|
    US6892745B2|2002-04-10|2005-05-17|Honeywell International Inc.|Flow control valve with integral sensor and controller and related method|
    US6999853B2|2002-05-03|2006-02-14|Fisher Controls International Llc.|Methods and apparatus for operating and performing diagnostics in a control loop of a control valve|
    US6678584B2|2002-05-03|2004-01-13|Fisher Controls International Llc|Method and apparatus for performing diagnostics in a control loop of a control valve|
    US20030226809A1|2002-06-06|2003-12-11|Detroit Diesel Corporation|Method and apparatus for determining oil filter life|
    DE10247869B4|2002-10-14|2007-02-08|Imi Norgren Gmbh|Pressure medium actuated working cylinder|
    US20040186484A1|2003-01-29|2004-09-23|Edwin Ryan|Small gauge surgical instrument with support device|
    US8202277B2|2003-01-29|2012-06-19|Edwin Ryan|Small gauge surgical instrument with support device|
    US7219691B2|2003-02-07|2007-05-22|Fisher Controls International Llc|Control valve positioner mounting system|
    DE10341477A1|2003-09-05|2005-03-31|Riehle, Rainer, Dipl.-Ing.|Sound generator for generating in pipelines of a water or gas supply system propagatable sound pulses|
    US20050245909A1|2004-04-29|2005-11-03|Mccary Brian D|Embedded data chip in a surgical handpiece|
    US7775052B2|2004-05-07|2010-08-17|Delavan Inc|Active combustion control system for gas turbine engines|
    US7337041B2|2004-06-14|2008-02-26|Fisher Controls International|Feedback control methods and apparatus for electro-pneumatic control systems|
    US7283321B1|2004-10-08|2007-10-16|Maxtor Corporation|Disk drives and methods allowing for dual stage actuator adaptive seek control and microactuator gain calibration|
    US7352287B2|2005-01-07|2008-04-01|Veris Industries, Llc|Pneumatic controller|
    US20060271082A1|2005-05-31|2006-11-30|Kirchhevel G Lamar|Calibrated surgical probe|
    DE202005009670U1|2005-06-17|2005-09-01|Sieber, Dieter|Pneumatic drive muffler, has pressure sensor that produces warning signal and switches off pneumatic drive when impact pressure within cavity increased due to increased contamination of muffler reaches predetermined limit pressure|
    DE102005043367B4|2005-09-12|2016-09-08|Laeis Gmbh|Control device and control method for a piston-cylinder arrangement|
    US7326183B2|2005-09-28|2008-02-05|Alcon, Inc.|Intraocular pressure control|
    US7600405B2|2005-10-11|2009-10-13|Alcon, Inc.|Microsurgical probe|
    CN102915046B|2005-10-21|2016-04-20|隆萨股份公司|Mass flow rate control system|
    US9047787B2|2005-11-30|2015-06-02|Terumo Cardiovascular Systems Corp.|Perfusion method and apparatus|
    US8187293B2|2006-02-06|2012-05-29|Novartis Ag|Microsurgical instrument|
    US7774287B2|2006-03-14|2010-08-10|Asml Netherlands B.V.|System and method for moving a component through a setpoint profile, lithographic apparatus and device manufacturing method|
    US9180232B2|2006-05-19|2015-11-10|Novartis Ag|Surgical system having manifolds with integral pneumatic accumulators|
    US20070282262A1|2006-05-19|2007-12-06|Alcon, Inc.|Surgical system having integral pneumatic manifolds|
    US20070270746A1|2006-05-19|2007-11-22|Alcon, Inc.|Surgical system having pneumatic manifolds with integral air cylinders|
    US20080125695A1|2006-06-23|2008-05-29|Hopkins Mark A|Reflux control in microsurgical system|
    DE102006030034A1|2006-06-29|2008-01-03|Zf Friedrichshafen Ag|Device for controlling a fluid-operated double-acting adjusting cylinder|
    US7708734B2|2006-06-30|2010-05-04|Alcon, Inc.|Method for dynamically adjusting operation of a surgical handpiece|
    US7640119B2|2006-06-30|2009-12-29|Alcon, Inc.|System for dynamically adjusting operation of a surgical handpiece|
    RU58919U1|2006-09-01|2006-12-10|Ренат Сулейманович Акчурин|AUTONOMOUS COMPLEX FOR OPERATIONS ON THE OPEN WORKING HEART|
    FR2905594B1|2006-09-08|2008-12-05|Corneal Ind Soc Par Actions Si|PNEUMATIC VITREOTOME|
    US20080082077A1|2006-09-29|2008-04-03|David Lloyd Williams|System and method for flow rate control|
    US8679241B2|2006-10-30|2014-03-25|Novartis Ag|Gas pressure monitor for pneumatic surgical machine|
    US8038692B2|2006-10-31|2011-10-18|Novartis Ag|Modular design for ophthalmic surgical probe|
    US8105405B2|2006-11-07|2012-01-31|Novartis Ag|Quick release filter assembly for pneumatic surgical machine|
    US7628054B2|2006-11-09|2009-12-08|Abbott Medical Optics Inc.|Calibration utility for non-linear measurement system|
    US8162000B2|2006-12-13|2012-04-24|Novartis Ag|Adjustable pneumatic system for a surgical machine|
    US9241830B2|2006-12-15|2016-01-26|Novartis Ag|Pressure monitor for pneumatic vitrectomy machine|
    US8312800B2|2006-12-21|2012-11-20|Novartis Ag|Pneumatic system for a vitrector|
    WO2008079526A2|2006-12-22|2008-07-03|Alcon Research, Ltd.|Method of operating a microsurgical instrument|
    US8157145B2|2007-05-31|2012-04-17|Ethicon Endo-Surgery, Inc.|Pneumatically powered surgical cutting and fastening instrument with electrical feedback|
    US8080029B2|2007-09-21|2011-12-20|Novartis Ag|System for actuation of a vitreous cutter|
    US8460324B2|2008-04-15|2013-06-11|Abbott Medical Optics Inc.|High speed pneumatic vitrectomy control|
    US20090287233A1|2008-05-15|2009-11-19|Huculak John C|Small Gauge Mechanical Tissue Cutter/Aspirator Probe For Glaucoma Surgery|
    JP5231902B2|2008-09-02|2013-07-10|株式会社ニデック|Vitreous surgery device|
    US8328835B2|2008-12-08|2012-12-11|Bausch & Lomb Incorporated|System for operating and controlling a pneumatically driven vitrectomy probe|
    CA2746138C|2008-12-11|2018-05-22|Norgren Limited|Method and apparatus for controlling a fluid operated actuator|
    DE102009006533B4|2009-01-28|2011-06-30|Siemens Aktiengesellschaft, 80333|Actuator with an open / close valve|
    US20100305596A1|2009-05-26|2010-12-02|Erik William Peterson|Non-linear cut-rate multiplier for vitreous cutter|
    US20100312169A1|2009-06-03|2010-12-09|Auld Jack R|Method of operating a vitrectomy probe|
    DE102009032897B4|2009-07-10|2013-09-19|Stabilus Gmbh|Piston-cylinder assembly|
    US8818564B2|2009-08-31|2014-08-26|Alcon Research, Ltd.|Pneumatic pressure output control by drive valve duty cycle calibration|
    WO2011071655A1|2009-12-10|2011-06-16|Alcon Research, Ltd.|Systems and methods for dynamic pneumatic valve driver|
    US8666556B2|2009-12-10|2014-03-04|Alcon Research, Ltd.|Systems and methods for dynamic feedforward|
    DE102010028762A1|2010-05-07|2011-11-10|Zf Friedrichshafen Ag|Device for determining an operating state of at least one bidirectionally actuable hydraulic adjusting device of a switching element of a transmission device|
    US8821524B2|2010-05-27|2014-09-02|Alcon Research, Ltd.|Feedback control of on/off pneumatic actuators|
    US8920078B2|2010-06-03|2014-12-30|Jason Woolever|Blower controller for pneumatic conveyance of granular materials|
    US9101442B2|2010-12-15|2015-08-11|Alcon Research, Ltd.|Reduced friction vitrectomy probe|
    US9101441B2|2010-12-21|2015-08-11|Alcon Research, Ltd.|Vitrectomy probe with adjustable cutter port size|
    US8888802B2|2010-12-21|2014-11-18|Alcon Research, Ltd.|Vitrectomy probe with adjustable cutter port size|
    US8808318B2|2011-02-28|2014-08-19|Alcon Research, Ltd.|Surgical probe with increased fluid flow|US8568391B2|2007-04-20|2013-10-29|Doheny Eye Institute|Sterile surgical tray|
    JP2010524593A|2007-04-20|2010-07-22|ドヘニーアイインスティテュート|Independent Surgery Center|
    US8818564B2|2009-08-31|2014-08-26|Alcon Research, Ltd.|Pneumatic pressure output control by drive valve duty cycle calibration|
    WO2011071655A1|2009-12-10|2011-06-16|Alcon Research, Ltd.|Systems and methods for dynamic pneumatic valve driver|
    US8821524B2|2010-05-27|2014-09-02|Alcon Research, Ltd.|Feedback control of on/off pneumatic actuators|
    US8808318B2|2011-02-28|2014-08-19|Alcon Research, Ltd.|Surgical probe with increased fluid flow|
    US8496681B2|2011-06-06|2013-07-30|Synergetics, Inc.|Systems and methods for vitrectomy|
    US8924028B2|2011-08-01|2014-12-30|Control Microsystems, Inc.|Battery-powered control valve and operation thereof|
    US8973595B2|2011-08-01|2015-03-10|Control Microsystems, Inc.|Battery-powered control valve and operation thereof|
    WO2013019205A1|2011-08-01|2013-02-07|Control Microsystems, Inc.|Battery-powered control valve and operation thereof|
    US9060841B2|2011-08-31|2015-06-23|Alcon Research, Ltd.|Enhanced flow vitrectomy probe|
    US10070990B2|2011-12-08|2018-09-11|Alcon Research, Ltd.|Optimized pneumatic drive lines|
    US9629748B2|2012-05-31|2017-04-25|Medical Instrument Development Laboratories, Inc.|Multi-stage tubing for high-speed pneumatic surgical cutter|
    WO2013180718A1|2012-05-31|2013-12-05|Medical Instrument Development Laboratories, Inc.|Multi-stage tubing for high-speed pneumatic surgical cutter|
    US9924963B2|2012-12-13|2018-03-27|Novartis Ag|Vitrectomy probe with integral valve|
    US9486358B2|2012-12-17|2016-11-08|Abbott Medical Optics Inc.|Vitrectomy surgical apparatus|
    US9271867B2|2012-12-17|2016-03-01|Abbott Medical Optics Inc.|Vitrectomy surgical apparatus with regulating of material processed|
    US9498376B2|2012-12-17|2016-11-22|Abbott Medical Optics Inc.|Vitrectomy surgical apparatus with cut timing based on pressures encountered|
    US9615969B2|2012-12-18|2017-04-11|Novartis Ag|Multi-port vitrectomy probe with dual cutting edges|
    ITTO20130746A1|2013-09-13|2015-03-14|Sinterleghe S R L|POWER SUPPLY DEVICE FOR ELECTRODE CAPS.|
    EP3134044B1|2014-04-23|2018-10-03|Johnson & Johnson Surgical Vision, Inc.|Vitrectomy surgical apparatus employing multisensor pressure feedback|
    FR3022606B1|2014-06-19|2016-06-24|Continental Automotive France|METHOD FOR DETERMINING THE POINT OF OPENING A VALVE|
    US9693898B2|2014-11-19|2017-07-04|Novartis Ag|Double-acting vitreous probe with contoured port|
    WO2016168016A1|2015-04-13|2016-10-20|Novartis Ag|High speed pneumatic valve|
    US10458444B2|2017-09-28|2019-10-29|Fisher Controls International Llc|Optimized method for controlling position and crossover pressure in a double acting actuator|
    NL2022011B1|2018-11-16|2020-05-26|Crea Ip B V|Vitrectome actuator|
    US20200340600A1|2019-04-24|2020-10-29|Alcon Inc.|Valve cooling and noise suppression|
    WO2021084402A1|2019-10-30|2021-05-06|Alcon Inc.|Dual port pneumatic connector|
    CN113374921B|2021-08-11|2021-10-29|山东柏源技术有限公司|Converter control system for oilfield pipeline fluid pressure|
    法律状态:
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-08-06| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-03-17| B25A| Requested transfer of rights approved|Owner name: ALCON RESEARCH, LLC (US) |
    2020-05-19| B09A| Decision: intention to grant|
    2020-10-13| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 11/11/2010, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US28524309P| true| 2009-12-10|2009-12-10|
    US61/285,243|2009-12-10|
    PCT/US2010/056305|WO2011071655A1|2009-12-10|2010-11-11|Systems and methods for dynamic pneumatic valve driver|
    [返回顶部]