JOINT SURGICAL INSTRUMENT

专利摘要:
surgical instruments with pivotable and rotating extremity effectors. The present invention relates to manual surgical instruments having an end actuator attached to an elongated rod. the end effector can be pivoted and rotated with respect to the rod by means of a nozzle arrangement supported by a cable, from which the elongated rod extends. in various modes, the mouthpiece can be operated by the same hand that is used to support the cable.
公开号:BR112013023736B1
申请号:R112013023736-8
申请日:2012-03-13
公开日:2021-07-13
发明作者:Rebecca J. Mollere；Janna B. Volz；John C. Schuckmann；Megan A. O'connor；Charles J. Scheib；Chad O. Boudreaux；Michael J. Vendely；Aron O. Zingman；Jeffrey S. Swayze；Barry C. Worrell
申请人:Ethicon Endo-Surgery, Inc；
IPC主号:

专利说明:

Technical Field
[0001] The present invention relates to surgical instruments and, in various embodiments, to minimally invasive surgical instruments that have a hinged end actuator. Background
[0002] Endoscopic and other minimally invasive surgical instruments typically include an end actuator positioned at the distal end of an elongated shaft and a handle at the proximal end of the elongated shaft, which allows a physician to manipulate the end actuator. In use, the tip actuator is delivered to a surgical site through a trocar cannula. At the surgical site, the extremity actuator engages tissue in a number of ways to achieve a diagnostic or therapeutic effect. Endoscopic surgical instruments are often preferred over traditional open surgical instruments because they require smaller incisions, which generally heal with less postoperative recovery time than traditional open surgical incisions. Because of this and other benefits of endoscopic surgery, there has been significant development in a range of endoscopic surgical instruments with tip actuators that engage tissue to perform various surgical tasks. For example, tip actuators have been developed to act as endoscopic surgical instruments, grippers, cutters, staplers, staple applicators, access devices, drug/gene therapy delivery devices, ultrasound, laser or RF energy devices and others cirurgical instruments.
[0003] In use, the positioning of the tip actuator at the surgical site may be restricted by the trocar cannula. In general, the elongated rod of the device allows the clinician to insert the end actuator to a desired depth and rotate the end actuator around the longitudinal axis of the rod. This allows the end actuator to be positioned in the surgical site to some degree. With judicious placement of the trocar and the use of grippers, for example through another trocar, this level of positioning is often sufficient. However, depending on the nature of the operation, it may be desirable to adjust the positioning of the end actuator of an endoscopic surgical instrument. In particular, it is often desirable to orient the end actuator at any one of multiple angles relative to the longitudinal axis of the elongated instrument shaft.
[0004] The movement of the end actuator through multiple angles relative to the instrument stem is conventionally called "pivoting". The linkage is typically accomplished by a pivot joint (or linkage) that is placed on the elongated rod near the end actuator. This allows the clinician to remotely articulate the extremity actuator to one side or the other for better surgical placement of tissue fasteners and easier tissue manipulation and orientation. A hinged end actuator allows the clinician to more easily engage tissue in some cases, such as behind an organ. Furthermore, the articulated positioning advantageously allows an endoscope to be positioned behind the end actuator without being blocked by the elongated rod.
[0005] Approaches to articulated end actuators tend to be complicated due to the fact that the mechanisms, to control the articulation, need to be integrated with the mechanisms to operate the end actuator. For example, for end actuators that have grip capabilities with open and close capability, the closing sleeve, drive member, and linkage mechanisms need to be implemented within the constraints of the small diameter of the instrument's stem. A common prior design involves an articulated bellow-shaped mechanism ("flexible neck") that is articulated by selectively extracting one of the two connecting rods through the implement rod, each rod being respectively displaced on opposite sides of the line center of the rod. The connecting rods engage in a ratcheting fashion through a series of distinct positions.
[0006] Over the years, other forms of swing-end actuator arrangements have been developed. For example, US Patent No. 7,670,334 entitled "Surgical Instrument Having an Articulating End Effector" and US Patent No. 7,819,298 entitled "Surgical Stapling Apparatus With Control Features Operable With One Hand", the descriptions of which are incorporated herein, by reference in their respective entireties, describe various surgical instruments employing hinged end actuator arrangements that effectively address many of the disadvantages of prior instruments with hinged actuators.
[0007] Many prior surgical instrument arrangements also employ a component commonly called a "mouthpiece" that is pivotally supported on the instrument handle and is secured to the elongated shaft. When the clinician wants to rotate the end actuator around the shaft axis, he simply rotates the mouthpiece relative to the handle. When the clinician also wants to articulate the extremity actuator, the clinician needs to actuate a slide bar or other form of articulation control member to achieve the desired articulation. Such control devices (eg, the nozzle and bar arrangement/knuckle control) typically need to be actuated using both hands.
[0008] In performing many surgical procedures, it is desirable to effect a desired amount of extremity actuator articulation and rotation through the use of only one hand. For example, many vascular operations require precise control of the extremity actuator. In such applications, it would be desirable to be able to have a surgical instrument that employs a single control mechanism to selectively pivot and rotate the end actuator, which can be easily actuated through the use of the same hand that is supporting the handle portion of the instrument.
[0009] The aforementioned discussion is only intended to illustrate some of the disadvantages present in the field of the invention at the moment, and should not be taken as a denial of the scope of the embodiments. SUMMARY
[00010] In accordance with general aspects of at least one form, an articulated surgical instrument is provided that includes a rod that defines a longitudinal geometric axis. An end effector is coupled to the rod for selective displacement about a pivot axis which is substantially transverse to the longitudinal axis. A nozzle is supported with respect to the shank so that the nozzle can be moved axially in the first and second axial directions with respect to the shank. Rotating the nozzle about the longitudinal axis causes the rod to rotate about the longitudinal axis. A hinge assembly operatively interfaces with the end effector and the nozzle such that movement of the nozzle in the first axial direction causes the hinge assembly to apply a first hinge movement to the end effector to cause the end effector to move in a first pivot direction around the pivot axis and movement of the nozzle in the second axial direction causes the pivot assembly to apply a second pivot movement to the end effector to do cause the end effector to move in a second pivot direction around the pivot axis.
[00011] In accordance with other general aspects of at least one form, an articulated surgical instrument is provided that includes a rod that defines a longitudinal axis. An end effector is coupled to the rod for selective displacement about a pivot axis which is substantially transverse to the longitudinal axis. In various forms, a nozzle is pivotally supported with respect to the rod so that the nozzle can be pivoted in the first and second operating directions relative to the rod and rotation of the nozzle around the longitudinal axis causes the effector turn around the longitudinal axis. A hinge assembly operatively interfaces with the end effector and the nozzle such that movement of the nozzle in the first direction of actuation causes the hinge assembly to apply a first hinge movement to the end effector to cause the end effector to move in a first pivot direction around the pivot axis, and the movement of the nozzle in the second actuation direction causes the pivot assembly to apply a second pivot movement to the end effector, to cause the end effector to move in a second pivot direction around the pivot axis.
[00012] In accordance with still further general aspects of at least one form, an articulated surgical instrument is provided that includes a rod that defines a longitudinal axis. An end effector is coupled to the rod for selective displacement about a pivot axis which is substantially transverse to the longitudinal axis. In various forms, a rotation nozzle is coupled to the rod so that rotation of the rotation nozzle causes the end effector to rotate about the longitudinal axis. A pivot nozzle is coaxially aligned with the rotation nozzle and is pivotally supported with respect to the rod so that the pivot nozzle can be pivotally moved in first and second pivotal directions with respect to the rod. In various forms, a hinge assembly operatively interfaces with the end effector and the hinge nozzle such that movement of the hinge nozzle in the first pivoting direction causes the hinge assembly to apply a first movement. of pivot to the end effector to cause the end effector to move in a first pivot direction around the pivot axis, and movement of the pivot nozzle in the second pivoting direction causes the pivot assembly to apply a second pivot movement to the end effector to cause the end effector to move in a second pivot direction around the pivot axis.
[00013] According to another general aspect of at least one form, an articulated surgical instrument is provided that includes a rod defining a longitudinal axis. An end effector is pivotally coupled to the rod for selective pivotal displacement about a pivot axis which is substantially transverse to the longitudinal axis. In various forms, the surgical instrument further includes a mouthpiece assembly comprising a first mouthpiece segment that is movably supported on the shaft, and a second mouthpiece segment that is movably coupled to the first mouthpiece segment and is supported by moveable way on the stem, so that the first and second nozzle segments can be selectively moved on the stem, relative to each other. In various forms, the surgical instrument further includes a hinge assembly that operatively interfaces with the end effector and the first and second mouthpiece segments so that movement of the first mouthpiece segment in a first direction axial causes the pivot assembly to apply a first pivot movement to the end effector and movement of the second nozzle segment in a second axial direction causes the pivot assembly to apply a second pivot movement to the end effector.
[00014] According to another general aspect of at least one form, an articulated surgical instrument is provided that includes a rod defining a longitudinal axis. An end effector is pivotally coupled to the rod for selective pivotal displacement about a pivot axis that is substantially transverse to the longitudinal axis. An actuator is pivotally supported with respect to the stem and comprises a first actuator portion which is pivotally supported with respect to the stem. The first actuator portion has a first actuator cam. A second actuator portion is hingedly supported relative to the stem and has a second actuator cam groove. In various forms, the articulated surgical instrument further comprises a first elongated hinge member having a first proximal end and a first distal end. The first distal end is operatively coupled to the end effector and the first proximal end has a first pivot pin extending therefrom to the first cam slot. The instrument further comprises a second elongated hinge member having a second proximal end and a second distal end. The second distal end is operatively coupled to the end effector and the second proximal end has a second pin extending therefrom to the second cam slot, so that operating the actuator in a first pivotal direction causes the first elongated hinge member to apply a first hinge movement to the end effector, and operating the actuator in a second pivotal direction causes the second elongated hinge member to apply a second hinge movement to the end effector. BRIEF DESCRIPTION OF THE DRAWINGS
[00015] The aforementioned features and other features and advantages of this invention, and the manner in which they are obtained, will become more apparent and the invention itself will be better understood by reference to the following description of embodiments of the invention, taken in conjunction with the attached drawings, in which:
[00016] Figure 1 is a perspective view of a surgical instrument with a non-limiting hinge end actuator modality of a form of the present invention;
[00017] Figure 2 is an exploded assembly view of a non-limiting hinge end actuator embodiment of at least one form of the present invention;
[00018] Figure 3 is an assembly view of a non-limiting modality of articulation control system of at least one form of the present invention;
[00019] Figure 4 is a perspective view of the non-limiting articulation control system of Figure 3;
[00020] Figure 5 is a perspective view of a portion of the non-limiting articulation control system of Figures 3 and 4;
[00021] Figure 6 is a perspective view of the non-limiting articulation control system of Figures 3 to 5, with a portion thereof shown in cross section;
[00022] Figure 7 is a cross-sectional plan view of the non-limiting pivot control system of Figures 3 to 6, with the pivot end actuator in a first pivot direction;
[00023] Figure 8 is another cross-sectional plan view of the non-limiting pivot control system of Figures 3 to 7, with the end actuator in a non-hinged orientation;
[00024] Figure 9 is another cross-sectional plan view of the non-limiting pivot control system of Figures 3 to 8, with the pivot end actuator in a second pivot direction;
[00025] Figure 10 is a perspective view of a non-limiting articulation control system embodiment of at least one other form of the present invention;
[00026] Figure 11 is a perspective view of the non-limiting pivot control system of Figure 10, with the rotation nozzle omitted for clarity;
[00027] Figure 12 is a perspective view of the non-limiting articulation control system of Figures 10 and 11, with some components thereof shown in cross section;
[00028] Figure 13 is an exploded assembly view of the non-limiting articulation control system of Figures 10 to 12;
[00029] Figure 14 is a cross-sectional plan view of the non-limiting pivot control system of Figures 10 to 13, with the pivot end actuator in a first pivot direction;
[00030] Figure 15 is another cross-sectional plan view of the non-limiting pivot control system of Figures 10 to 14, with the end actuator in a non-hinged orientation;
[00031] Figure 16 is another cross-sectional plan view of the non-limiting pivot control system of Figures 10 to 15, with the end actuator pivoted in a second pivot direction;
[00032] Figure 17 is a perspective view of a non-limiting articulation control system embodiment of at least one other form of the present invention;
[00033] Figure 18 is another perspective view of the non-limiting articulation control system of Figure 17, with some components thereof shown in cross section;
[00034] Figure 19 is an exploded assembly view of the non-limiting articulation control system of Figures 17 and 18, with some components thereof shown in cross section;
[00035] Figure 20 is another exploded view of the assembly of the non-limiting articulation control system of Figures 17 to 19, with some components thereof shown in cross section;
[00036] Figure 21 is a perspective view of the non-limiting articulation control system of Figures 17 to 20, with the right mouthpiece portion thereof moved in the first actuation direction;
[00037] Figure 22 is a cross-sectional plan view of the non-limiting pivot control system of Figures 17 to 21, with the pivot end actuator in a first pivot direction;
[00038] Figure 23 is another cross-sectional plan view of the non-limiting pivot control system of Figures 17 to 22, with the end actuator pivoted in a second pivot direction;
[00039] Figure 24 is a perspective view of a non-limiting nozzle assembly embodiment of another form of the present invention;
[00040] Figure 25 is a cross-sectional view of the nozzle assembly of Figure 24, taken along line 25-25 in Figure 24;
[00041] Figure 26 is a perspective view of a non-limiting articulation control system embodiment of at least one other form of the present invention;
[00042] Figure 27 is a perspective view of a portion of the non-limiting articulation control system embodiment of Figure 26;
[00043] Figure 28 is another perspective view of the portion of the non-limiting articulation control system modality of Figure 27, with a portion shown in cross section;
[00044] Figure 29 is an exploded assembly view of the non-limiting linkage control system of Figures 26 to 28;
[00045] Figure 30 is a side elevation view of a portion of the non-limiting linkage control system of Figures 26 to 29;
[00046] Figure 31 is a cross-sectional plan view of the non-limiting pivot control system of Figures 26 to 30, having the end effector pivoted in a first pivot direction;
[00047] Figure 32 is another cross-sectional plan view of the non-limiting pivot control system of Figures 26 to 31, with the end actuator in a non-hinged orientation;
[00048] Figure 33 is another cross-sectional plan view of the non-limiting pivot control system of Figures 26 to 32, with the end effector pivoted in a second pivot direction;
[00049] Figure 34 is a perspective view of an embodiment of the non-limiting articulation control system of at least one other form of the present invention;
[00050] Figure 35 is a perspective view of a portion of the non-limiting articulation control system embodiment of Figure 34;
[00051] Figure 36 is a rear perspective view of the non-limiting articulation control system modality of Figures 34 and 35;
[00052] Figure 37 is a cross-sectional perspective view of the non-limiting articulation control system modality of Figures 34 to 36;
[00053] Figure 38 is an exploded view of the assembly of the non-limiting articulation control system modality of Figures 34 to 37;
[00054] Figure 39 is a cross-sectional view of the non-limiting articulation control system embodiment of Figures 34 to 38;
[00055] Figure 40 is another cross-sectional view of the non-limiting hinge control system embodiment of Figures 34 to 39, with the end effector hinged in a first hinge direction;
[00056] Figure 41 is another cross-sectional view of the non-limiting articulation control system embodiment of Figures 34 to 40;
[00057] Figure 42 is a cross-sectional view of the non-limiting hinge control system embodiment of Figures 34 to 41, with the end effector hinged in a second hinge direction;
[00058] Figure 43 is a perspective view of another modality of non-limiting articulation control system of the present invention;
[00059] Figure 44 is an exploded view of the assembly of the non-limiting articulation control system modality of Figure 43;
[00060] Figure 45 is another exploded view of the assembly of the non-limiting articulation control system modality of Figures 43 and 44;
[00061] Figure 46 is another exploded view of the assembly of the non-limiting articulation control system modality of Figures 43 to 45;
[00062] Figure 47 is a cross-sectional view of the non-limiting articulation control system embodiment of Figures 43 to 46, in an unlocked position;
[00063] Figure 48 is an enlarged cross-sectional view of a portion of the non-limiting articulation control system embodiment of Figures 43 to 47 in an unlocked position;
[00064] Figure 49 is a cross-sectional view of the non-limiting articulation control system embodiment of Figures 43 to 48 in a locked position; and
[00065] Figure 50 is an enlarged cross-sectional view of a portion of the non-limiting articulation control system embodiment of Figures 43 to 49 in a locked position.
[00066] The applicant of the present application also has US Patent Application Serial No. 13/048579, entitled "SURGICAL INSTRUMENTS WITH LOCKABLE ARTICULATABLE END EFFECTOR", Precedent No. END6845USNP/100530, which was filed on the same date, together , and which is incorporated herein by reference in its entirety.
[00067] Certain exemplary embodiments will now be described to provide a general understanding of the principles of structure, function, fabrication and use of the instruments and methods described herein. One or more examples of these embodiments are illustrated in the attached drawings. Those skilled in the art will understand that the devices and methods specifically described herein and illustrated in the accompanying drawings are non-limiting exemplary embodiments, and that the scope of the various embodiments of the present invention is defined only by the embodiments. The reference from beginning to end of the descriptive report to "various modalities", "some modalities", "a modality", or "the modality", or similar, means that an attribute, structure, or characteristics described in conjunction with the modality is included in at least one modality. Therefore, the appearance of the phrases "in various modalities", "in some modalities", "in a modality", or "in modality", or similar, in places from beginning to end of the descriptive report are not necessarily all referring to same modality. In addition, particular attributes, structures, or characteristics can be combined in any suitable way in one or more modalities. Therefore, particular attributes, structures, or features illustrated or described in conjunction with an embodiment may be combined, in whole or in part, with the attribute structures, or features of one or more other embodiments without limitation. Such modifications and variations are to be included within the scope of the various embodiments of the invention presented in the present invention and their respective equivalents.
[00068] The terms "proximal" and "distal" are used in the present invention with reference to a clinician's manipulation of the handle portion of the surgical instrument. The term "proximal" refers to the portion closest to the clinician, and the term "distal" refers to the portion located furthest from the clinician. It will be further understood that, for the sake of convenience and clarity, spatial terms such as "vertical", "horizontal", "up", "down", "right" and "left" may be used in the present invention in relation to the drawings. However, surgical instruments can be used in many orientations and positions, and these terms are not intended to be limiting and/or absolute.
[00069] Several exemplifying instruments and methods are provided for performing laparoscopic and minimally invasive surgical procedures. However, those of ordinary skill in the art will readily understand that the various methods and instruments presented in the present invention can be used in numerous surgical procedures and applications including, for example, in connection with "open" surgical procedures. As the present Detailed Description advances, those with common knowledge of the art will additionally appreciate that the various instruments presented herein can be inserted into a body in any manner, such as through a natural orifice, through an incision or perforation formed in tissue , etc. The working portions or end actuator portions of the instruments can be inserted directly into a patient's body or they can be inserted through an access device that has a working channel, through which the end actuator and elongated shaft a surgical instrument can be advanced.
[00070] Returning now to the drawings, in which the reference numbers denote similar components throughout the various views, Figure 1 presents a modality of a surgical stapling and separating instrument 10 that is capable of putting into practice the many unique benefits of at least one form of the present invention. Various portions of instrument 10 may be identical to portions of the devices disclosed in US Patent No. 7,670,334, which has been incorporated herein by reference and/or US Patent No. 7,000,818 entitled "Surgical Stapling Instrument Having Separate Distinct Closing and Firing Systems", the report of which is incorporated herein by reference in its entirety.
[00071] As shown in Figure 1, in a non-limiting form, the surgical instrument 10 generally includes a handle 12, a rod 14 and a pivot end actuator 20, which is pivotally connected to the rod 14 at the pivot pivot 16. A swivel control 200 is provided to effect rotation of end actuator 20 around swivel pivot 16. End actuator 20 is shown configured to act as an endocutter for clamping, separating and stapling tissue. However, those skilled in the art will understand that various embodiments of the present invention may include end actuators (not shown) that are configured to act as other surgical devices including, for example, grippers, cutters, staplers, staple applicators, delivery devices. access, drug/gene therapy delivery devices, ultrasound, RF, or laser energy devices, etc.
[00072] The handle 12 of the instrument 10 may include a closing trigger 30 and a firing trigger 40 for actuating the end actuator 20. It will be recognized that instruments having end actuators directed to different surgical tasks may have numbers or different types of triggers or other controls suitable for operating an end actuator. End actuator 20 is shown separated from a handle 12 by elongated rod 14 which defines a longitudinal axis A-A. A physician may articulate the end actuator 20 with respect to the stem 14 about a hinge axis BB that is substantially transverse to the longitudinal axis AA (hinge pivot 16) using the hinge control 200, as will be discussed in detail below. As used herein, the expression, "substantially transverse to the longitudinal axis" where the "longitudinal axis" is the axis of the rod 14, refers to a direction that is nearly perpendicular to the longitudinal axis. It will be understood, however, that directions that deviate somewhat from perpendicular to the longitudinal axis are also substantially transverse to the longitudinal axis.
[00073] Figure 2 shows an exploded view of the end effector 20 and the elongated rod 14 including various internal components. An end effector frame 90 and a rod frame 100 are configured to be joined at a pivot pivot 50 which defines a pivot axis B-B (Figure 1). Rod frame 100 is supported by cable 12 in a known manner. As such, the frame construction of the rod 100 will not be discussed in greater detail here, beyond what is necessary to understand the various embodiments of the present invention. In various embodiments, for example, the end actuator frame 90 has an integrally formed or otherwise secured protrusion 96 which is coupled to a distally directed terminal 102 in the stem frame 100 defining an opening 104. Aperture 104 may be positioned to interface with a pivot pin (not shown) included in end actuator frame 90, which allows end actuator frame 90 to pivot relative to stem frame 100 and, consequently, to end actuator 20 pivots with respect to stem 14. When assembled, the various components can pivot around pivot pivot 50 on pivot axis BB as shown in Figure 1.
[00074] As further seen in Figure 2, in a non-limiting form, the end actuator 20 includes an elongated channel 110 that is sized and configured to removably support a staple cartridge 120 therein. Elongate channel 110 is secured to end actuator frame 90 by a pair of frame tabs 93 which extend in corresponding grooves 115 in elongate channel 110. Clip cartridge 120 may comprise a molded cartridge body 122 that supports operatively a plurality of clamps 124 which rest on corresponding clamp drivers 126 within respective upwardly open clamp openings 128. In this non-limiting embodiment, the end actuator 20 also includes a fixed claw 130 that is coupled to the elongated channel. 110. A pair of apertures 112 may be provided in elongated channel 110 to movably receive pivot pins or pins 132 in fixed jaw 130, which allows fixed jaw 120 to pivot from an open position to a closed position relative to to the elongated channel 110 and the clip cartridge 120 in response to opening and closing movements received from a closure tube assembly 140. Closing tools can also be used to effectively actuate the grips of other types of end actuators, as is known.
[00075] As can also be seen in Figure 2, the closure tube assembly 140 employs a "double pivot" closure sleeve assembly 142. It will be understood that the invention is not limited to a pivot closure sleeve design double and can include any suitable closing sleeve arrangement. In various non-limiting embodiments, for example, the double pivot closure sleeve assembly 142 includes a proximal closure tube segment 141 having upper and lower ends 146, 148 that project distally. An end actuator closure tube section 150 includes a horseshoe shaped opening 152 and a tab 154 for engaging an opening tab 134 on the fixed jaw 130. As is known, when the end actuator closure tube section 150 is advanced distally into the end actuator frame 90, the horseshoe shaped opening applies a closing motion to tab 134 to move fixed jaw 130 toward clamp cartridge 120. When end actuator closure tube 150 is withdrawn in the proximal direction, tab 154 engages tab 134 to move fixed jaw 130 away from staple cartridge 120 to an open position. Shown is the closure tube section 150 which has top 156 and bottom (not visible) ends that protrude proximally.
[00076] The end actuator closure tube section 150 is pivotally attached to the proximal closure tube segment section 141 by a double pivot upper fitting 160 and a double pivot lower fitting 170. dual pivot 160 includes upwardly projecting distal and proximal pivot pins 162, 164, which respectively engage an upper pin hole 157 in the proximally projecting upper terminal 156 and an upper proximal pin hole 147 in the upper projecting terminal projects distally 146. A double pivot bottom connection 170 includes downwardly protruding proximal and distal pivot pins (not shown) that respectively engage a lower distal pin hole in the proximally projecting lower terminal and a pin hole. lower proximal 149 at the distally protruding lower end 148. In use, the closing sleeve assembly 140 is translated distally to close the fixed jaw 130, p. for example, in response to actuation of the close trigger 30.
[00077] The device 10 additionally includes a firing bar 180 that is configured to translate longitudinally through the axis 14, through the flexible closure and the pivoting frame pivot joint 50 and through a firing slot 91 in the frame. end actuator 90 on end actuator 20. Trigger bar 180 may be constructed of a solid section or, in various embodiments, may include a laminated material comprising, for example, a stack of steel plates 182. It will be understood that a trigger bar 180, produced from a laminated material, can decrease the force required to articulate the end actuator 20. A distally projecting end of the trigger bar 180 is attached to a beam 184, which aids in spacing the fixed jaw 130 of staple cartridge 120 when fixed jaw 130 is in a closed position. A sharp cutting edge 186 of the beam 184 may also be used to separate the fabric.
[00078] In operation, beam 184 actuates staple cartridge 120. A wedge plank 190 is driven distally by bundle 184, which slides over a cartridge tray 192 containing the various components of replaceable staple cartridge 120. The plank wedge 192 upwardly cam-displaces clip leads 126 to force clips 124 outwardly into deforming contact with fixed jaw 130, while a cut surface 186 of bundle 184 separates the clamped tissue. Trigger bar 180 is movably supported within rod 14 so that it passes through cartridge 120 when instrument 10 is fired (e.g., actuated). In at least one non-limiting embodiment, trigger bar 180 is instead positioned within rod 14 so that all or a portion of the trigger bar element body 180 is supported by a groove (not shown) on fixed claw 130 during firing. Due to the fact that the fixed jaw 130 can be stronger than the cartridge 120, the slot support can prevent the trigger bar 180 from bending, even when high loads are applied to the distal end of the trigger bar 180. This can be useful in embodiments where the fire bar element 182 includes laminated plates 182.
[00079] Various beam configurations also include upper pins 188, which are configured to engage fixed jaw 130 during firing, while middle pins 185 and a lower base 187, engage various portions of cartridge body 122, cartridge tray 192 and elongated channel 110. In use, a centrally disposed groove 123 in cartridge body 122 aligns with a groove 193 in cartridge tray 190 and with a groove 113 in elongate channel 110. The leading edge of the E-beam 184 slides across. of the aligned slots 123, 193 and 113. As the trigger bar 180 is advanced distally, the base 187 is held against the bottom of the channel 110 and the upper pins 180 are held in a groove 131 in the lower surface of the fixed jaw 130, to prevent the fixed claw 130 and channel 110 from being forced apart because of tissue resistance. Thereafter, the trigger bar 180 is proximally retracted, also retracting the E-beam 184, which allows the fixed claw 130 to be opened to release the two separate stapled tissue portions (not shown).
[00080] In various non-limiting embodiments, a spring clip 195 is mounted on the end actuator frame 90 as a latch for the trigger bar 180. The square distal and proximal openings 192, 193 formed in the top of the frame of the end actuator 90 can define between them a clamp bar 196 which receives an upper arm 197 of a clamp spring 195 whose distally extended lower arm 198 imparts a downward force on an elevated portion 183 of the trigger bar 180, as is known. It will be understood that various modalities may include other types of locks or no lock at all.
[00081] In the various embodiments shown in Figures 1 and 3 to 9, the end actuator 20 is selectively rotatable around the longitudinal axis AA and selectively pivotable around the articulation axis BB, relative to the proximal stem segment 141 by pivot control system 200. In various non-limiting embodiments, pivot control system 200 includes a nozzle 210 that is rotatably supported with respect to handle 12. In the embodiments shown in Figures 3 to 9, nozzle 210 has a proximal end portion 212 which tapers to a distal end portion 214. To facilitate easy rotation of the mouthpiece 210 about the longitudinal axis AA by a portion of the same hand in which the physician is holding the handle 12, a plurality of radially projecting actuation buttons 216 is formed around proximal end 212 of mouthpiece 210 as shown. The clinician may then rotate the mouthpiece 210 relative to the handle with their index finger or another finger or portion of their hand that is supporting the handle 12.
[00082] Returning to Figures 3 and 4, it can be noted that the nozzle 210 can be supplied in multiple pieces for assembly purposes. In the illustrated embodiment, for example, the nozzle 210 is formed from a lower nozzle portion 211 and an upper nozzle portion 213. The lower and upper nozzle portions 211, 213 can be fabricated, for example, from polycarbonate loaded with glass or other suitable material, and be interconnected to each other by adhesive, welding, snap-on features, screws, rods/proper friction holes, etc. In various non-limiting embodiments, the mouthpiece 210 is pivotally secured to the proximal closure tube segment 141 by lower and upper pins 220, 222, respectively. Proximal closure tube segment 141 may be fabricated in multiple segments for assembly purposes. Those skilled in the art will understand that the proximal portion of the proximal closure tube segment 141 will interface with known components for attachment or communication with the device's closure trigger. For example, such provisions are shown in US Patent No. 7,000,818, which has been incorporated herein by reference. However, the actuation of the closure tube assembly can be controlled by a range of other known trigger and handle arrangements, without departing from the spirit and scope of the present invention. In the embodiment shown in Figures 3 to 6, the proximal closure tube segment 141 is fabricated from a lower stem segment 143 and an upper stem segment 145. In various embodiments, the upper and lower stem segments 143, 145 may be manufactured from stainless steel or other suitable material and may be connected together by a suitable adhesive or other suitable fastening arrangement to form a substantially hollow tubular structure to accommodate the various components of the articulation control system 200, such as a swivel assembly 230 as well as the firing bar 182, the rod frame 100, etc.
[00083] As can be seen in Figures 3 and 6, in various non-limiting embodiments, the upper pin 220 is rotatably received into a hole 149 in the upper rod segment 145 and the lower pin 222 is rotatably received in a lower hole 147 on the lower stem segment 143. The lower and upper pins 220, 222 are coaxially aligned and define a nozzle axis CC around which the nozzle 210 can pivot relative to the proximal closure tube segment 141. particularly seen in Figure 6, an orifice 219 is provided through the proximal end 214 of the nozzle 210. The orifice 219 is dimensioned with respect to the proximal closure tube segment 141 to allow the nozzle 210 to be pivoted about the geometric axis of CC nozzle, as will be discussed in further detail below.
[00084] In the non-limiting embodiment of Figure 2, the pivot control system 200 includes a pivot assembly 230. In at least one embodiment, the pivot assembly 230 may comprise a right pivot rod 232 and a left pivot rod 234. Left and right pivot rods 232, 234 may be configured as shown in Figures 2 and 3, and may be fabricated from stainless steel or other suitable material. The pivot assembly 230 comprises a right pivot rod 232 and a left pivot rod 234 which, when received within the proximal closure tube segment 141, can be axially moved therein relative to each other, as will be discussed in further detail. below. As can be seen in Figure 2, the left and right pivot rods 232, 234 define a centrally disposed elongated slot 236 that is configured to accommodate axial movement of the trigger bar 180 therebetween. A right pivot band 238 projects distally from a distal end 233 of the right pivot rod 232 and a left pivot band 240 projects distally from the distal end 239 of the left pivot rod 234. See Figure 2. In various non-limiting embodiments, hinge bands 238, 240 are secured to protrusion 96. For example, bands 238, 240 may be pivotally secured to protrusion 96.
[00085] The articulation assembly 230 is configured to interface with the nozzle 210, so that the pivotal path of the nozzle 210 around the nozzle geometry axis CC results in the axial actuation of the left and right articulation rods 232, 234 that , finally, cause the end actuator 20 to pivot around the pivot axis BB. More specifically and with reference to Figures 3, 5 and 6 to 9, the right pivot rod 232 has a right pivot pin 250 which is secured thereto and projects laterally therefrom through a straight slot 251 in the pipe segment. of proximal closure 141. The end of the right pivot pin 250 extends into a right socket or opening 252 in the mouthpiece 210. Similarly, the left pivot rod 234 has a left pivot pin 254 that is secured thereto and is seated. projects laterally from it through a left slot 255 in proximal closure tube segment 141. The end of left pivot pin 254 extends into a socket or opening 256 in mouthpiece 210.
[00086] The operation of the articulation control system 200 can be understood by referring to Figures 7 to 9. Figure 7 illustrates the articulation of the end actuator 20 to the left of the articulation pivot 50 (around the geometric axis of BB articulation - shown in Figure 1). To accomplish this hinge band, the clinician pivots mouthpiece 210 in the first actuation direction, represented by arrow "E" in Figure 7. When mouthpiece 210 is pivoted in direction "E", right hinge rod 232 is moved in the distal direction "DD" and the left pivot rod 234 is moved in the proximal direction "PD". Such movement of the left and right hinge rods 232, 234 results in the application of a thrust movement of boss 96 by right hinge band 238 and a pulling movement of boss 96 by left hinge band 240, which results in hinge of the end actuator 20 as shown. Figure 8 illustrates end actuator 20 in coaxial alignment with stem 14 (eg, in a non-hinged position). Such end actuator guidance may be employed, for example, during insertion of end actuator 20 through a trocar cannula (not shown) or other opening, into the patient. Figure 9 illustrates the pivot of end actuator 20 to the right of pivot pivot 50 (around pivot axis B-B - shown in Figure 1). To achieve this articulation range, the clinician pivots mouthpiece 210 in the second actuation direction, represented by arrow "F" in Figure 9. When mouthpiece 210 is pivoted in direction "F", right hinge rod 232 is moved in the proximal direction "PD" and the left pivot rod 234 is moved in the distal direction "DD". Such movement of the left and right hinge rods 232, 234 results in the application of a thrust movement to the boss 96 by the left hinge band 240, and a pulling movement to the boss 96 by the right hinge band 238, resulting in the articulation of the end actuator 20 as shown. End actuator 20 can be rotated about the longitudinal axis simply by rotating the nozzle 210 about the longitudinal axis A-A. This action can be performed by a portion of the hand that is supporting the cable portion of the device, thus avoiding the need for both hands to rotate the end actuator around the longitudinal axis. Although the hinge assembly 230, as described above, employs two rods or elongated hinge members, in alternative embodiments, only one elongate hinge member is employed.
[00087] Figures 10 to 17 illustrate another modality of non-limiting joint control system of the present invention, generally designated as 300, which is similar to the joint control system 200 described above, except for the differences noted below . These components, which are the same components employed in the modalities described above, will be marked with the same element numbers and the elements versed in the art can refer to the description presented earlier in this document that explains their construction and operation. As can be seen in Figure 10, the pivot control system 300 employs a separate rotation nozzle 302 to control the rotation (arrow "G" in Figure 10) of the closure tube assembly 140 and, finally, the closure actuator. end 12. As can be seen in Figure 13, in at least one embodiment, the swivel nozzle 302 is fabricated from a swivel nozzle upper portion 303 and a swivel nozzle lower portion 304, which is secured to the portion. top of rotation nozzle 303, eg by friction columns and sockets 341, 343. However, nozzle portions 303, 304 may be secured by other suitable means such as adhesive, welding, snap-on features, screws, etc. . The upper swivel nozzle portion 303 and the lower swivel nozzle portion 304 are secured to the proximal closure tube segment 141. In at least one embodiment, for example, the upper swivel nozzle section 303 is fitted to the upper shank segment 145 by a fit 305 which extends through an opening 306 in the upper shank segment 145 and the lower swivel nozzle section 304 is fitted to the lower shank segment 143 by an fit 307 which extends through an opening 308 in the shank segment bottom 143. However, the swivel nozzle 302 may be non-rotatably secured to the proximal closure tube segment 141 by other suitable means so that rotation of the swivel nozzle 302 results in rotation of the end actuator 20 about the shaft. longitudinal geometric AA.
[00088] As shown in Figure 13, the hinge nipple 310 can be supplied in multiple pieces for assembly purposes. In the illustrated embodiment, for example, the hinge nozzle 310 is formed from a right nozzle portion 311 and a left nozzle portion 313. The right and left nozzle portions 311, 313 can be fabricated from, for example , glass-loaded polycarbonate, and can be interconnected by friction columns/holes 345, 347. In various non-limiting embodiments, pivot nozzle 310 is pivotally mounted to lower and upper pins 220, 222, respectively. Upper pin 220 is secured to upper shank segment 145 and lower peg 222 is secured to lower shank segment 143. Lower and upper pegs 220, 222 are coaxially aligned and define a nozzle axis CC around which the pivot nipple 310 is pivotable relative to the proximal closure tube segment 141. As can be seen more particularly in Figure 11, an orifice 319 is provided through the proximal end 314 of the pivot nipple 310. The orifice 319 is dimensioned with respect to closure tube section 141 to allow pivot nozzle 310 to be pivoted about nozzle axis CC, as will be discussed in more detail below.
[00089] In the non-limiting embodiment of Figure 13, the pivot control system 300 includes a pivot assembly 230. In at least one embodiment, the pivot assembly 230 may comprise a right pivot rod 232 and a left pivot rod 234. The left and right pivot rods 232, 234 can be configured as shown in Figure 14 and be fabricated from stainless steel or other suitable material. As discussed above, when the left and right pivot rods are received within the proximal closure tube segment 141, they can be moved axially therein, relative to one another. When received within proximal closure tube segment 141, left and right pivot rods 232, 234 define a centrally disposed elongated slot 236 that is configured to accommodate axial movement of trigger bar 180. A right pivot band 238 projects distally from a distal end 233 of the right pivot rod 232 and a left pivot band 240 projects distally from the distal end 239 of the left pivot rod 234. In various non-limiting embodiments, the pivot bands 238 , 240 are attached to protrusion 96. For example, bands 238, 240 can be pivotally secured to protrusion 96.
[00090] The hinge assembly 230 is configured to interface with the hinge nozzle 310, so that the pivotal displacement of the hinge nozzle 310 around the nozzle geometric axis CC, results in the actuation of the hinge assembly 230 which, finally, it causes the end actuator 20 to pivot around the pivot axis BB on the pivot pivot 50. More specifically, and with reference to Figures 14 to 17, the right pivot rod 232 has a right pivot pin. 320 which is attached to it and protrudes laterally therefrom through a straight slot 251 in the rod closure tube section 141. In various non-limiting embodiments, a ball 321 may be provided at the end of the right pivot pin 320 and be rotatably received within an opening 323 in the hinge nipple 310. Similarly, the left hinge rod 234 has a left pivot pin 330 that is secured thereto and projects laterally. therefrom through a left slot 255 in the proximal closure tube segment 141. A ball 332 may be provided at the end of the left pivot pin 330 and be rotatably received within an opening 334 in the pivot nipple 310.
[00091] The operation of the linkage control system 300 can be understood by referring to Figures 14 to 16. Figure 14 illustrates the linkage of the end actuator 20 to the left of the linkage pivot 50. To realize this range of articulation, the clinician pivots the articulation nozzle 310 in the actuation direction, represented by the arrow "E" in Figure 14. When the articulation nozzle 310 is pivoted in the direction "E", the right articulation rod 232 is moved in the distal direction. "DD" and the left pivot rod 234 is moved in the proximal direction "PD". Such movement of the left and right hinge rods 232, 234 results in the application of a thrust movement to boss 96 by right hinge band 238 and a pulling movement to boss 96 by left hinge band 240, resulting in the articulation of the actuator. end 20 as shown. Figure 15 illustrates end actuator 20 in coaxial alignment with stem 14 (eg, in a non-hinged position). Such end actuator guidance may be employed, for example, during insertion of end actuator 20 through a trocar cannula (not shown) or other opening, into the patient. Figure 16 illustrates the pivot of the end actuator 20 to the right of the pivot pivot 50. To accomplish this pivot range, the clinician pivots pivot nipple 310 in the actuation direction represented by the arrow "F" in Figure 15. When the pivot nozzle 310 is pivoted in the "F" direction, the right pivot rod 232 is moved in the proximal "PD" direction and the left pivot shaft 234 is moved in the distal "DD" direction. Such movement of the left and right hinge rods 232, 234 results in the application of a thrust movement to boss 96 by left hinge band 240 and a pulling movement to boss 96 by right hinge band 238, resulting in the articulation of the actuator. end 20 as shown. Although the hinge assembly 230, as described above, employs two rods or elongated hinge members, in alternative embodiments, only one elongate hinge member is employed.
[00092] Figures 17 to 23 illustrate another modality of non-limiting articulation control system of the present invention, generally designated as 400. These components, which are the same components used in the above-described modalities, will be marked with the same numbers of element and the elements versed in the art can refer to the description presented earlier in this document which explains its construction and operation. In various non-limiting embodiments, pivot control system 400 includes a pivot nozzle 410 that is manufactured in multiple pieces. For example, pivot nozzle 410 has a right nozzle portion 412 that is axially movable relative to a left nozzle portion 430. See Figure 21. In at least one non-limiting embodiment, the right nozzle portion 412 consists of an upper right portion 414 and a lower right portion 420. See Figure 19. The upper and lower right nozzle portions 412, 414 can be fabricated, for example, from glass-filled polycarbonate or other suitable material. Similarly, the left nozzle portion 430 consists of an upper left nozzle portion 432 and a lower left nozzle portion 440. The left upper and lower nozzle portions 432, 440 can be fabricated, for example, from polycarbonate filled with glass or other suitable material.
[00093] As can be seen in Figure 20, the upper right nozzle portion 414 is provided with a pair of spaced apart retainer band segments 416 and the lower right nozzle portion 420 is provided with a pair of retainer band segments spaced 422. When the upper and lower straight nozzle portions 414, 420 are joined together, the retaining band segments 416 in the upper portion 414 cooperate with the retaining band segments 422 in the lower portion 420 to form retaining bands continuous annular rights, usually designated as 424, the purpose of which will be discussed in further detail below. Similarly, the upper left nozzle portion 432 is provided with a pair of spaced apart retaining band segments 434 and the lower left nozzle portion 440 is provided with a pair of spaced apart retaining band segments 442. Lower and upper left nozzles 432, 440 are joined, retainer band segments 434 in upper portion 432 cooperate with retainer band segments 442 in lower portion 440 to form continuous annular left retainer bands, generally designated as 444.
[00094] In at least one non-limiting embodiment, the pivot control system 400 includes a pivot assembly 230. In at least one embodiment, the pivot assembly 230 may comprise a right pivot rod 232 and a left pivot rod 234. Left and right pivot rods 232, 234 can be configured as shown in Figure 19 and be fabricated from stainless steel or other suitable material. Left and right pivot rods 232, 234, when movably supported within proximal closure tube segment 141, as illustrated, serve to define a centrally disposed elongated slot 236 that is configured to accommodate axial movement of the trigger bar 180. A right pivot band 238 projects distally from a distal end 233 of the right pivot rod 232 and a left pivot band 240 projects distally from the distal end 239 of the left pivot rod 234. In Various Embodiments non-limiting, the hinge bands 238, 240 are secured to the boss 96. For example, the bands 238, 240 can be pivotally secured to the boss 96. The left and right hinge rods 232, 234 are slidably inserted into the boss. hollow proximal closure tube segment 141. The right pivot rod 232 has a right pivot pin 450 that attaches to it and protrudes. tacks laterally from it through a right slot 251 in the rod closure tube section 141. Similarly, the left pivot rod 234 has a left pivot pin 460 that is secured thereto and protrudes laterally from it. through a left slot 255 in the rod closure tube section 141. Such an arrangement allows the right pivot rod 232 and the second pivot rod to be independently movable axially within the proximal closure tube segment 141. The end of the pin of right pivot 450 is configured to be received within an opening 452 formed by the joined lower and upper right nozzle portions 414, 420. Similarly, the end of the left pivot pin 460 is configured to be received within an opening 462 formed by the upper and lower left nozzle portions 432, 440.
[00095] To look like at least one modality, the upper nozzle portions 414, 432 are joined to form a temporary upper nozzle assembly 433, but remain unattached to each other as illustrated in Figure 19. As also illustrated in Figure 19, the lower nozzle portions 420, 440 are joined to form a temporary lower nozzle assembly 443, but remain unattached to each other. Then, the upper temporary nozzle assembly 433 is joined to the temporary lower nozzle assembly 443 over the proximal closure tube segment 141, while capturing the right pivot pin 450 in the right opening 452 and the left pivot pin 460 in the left opening 462. In at least one non-limiting modality, the upper right nozzle portion 414 is provided with clamping columns 415 (Figure 20), which are sized to be friction fit into clamp holes 425 in the lower right nozzle portion , to secure those two portions 414, 420 together to form the right nozzle section 412. Similarly, the lower left nozzle portion 440 is provided with fastening posts 445 that are sized to be friction fit into the holes. clamps 435 on the upper left nozzle portion 432 to retain these two portions 440, 432 to form the left nozzle portion 430. However, other gripping and/or adhesive arrangements may be employed to attach the upper right nozzle portion 414 to the right lower nozzle portion 420 and the upper left nozzle portion 432 and the lower left nozzle portion 440.
[00096] The operation of the linkage control system 400 can be understood by referring to Figures 22 and 23. Figure 22 illustrates the linkage of the end actuator 20 to the left of the linkage pivot 50. articulation, the physician axially moves the right nozzle portion 412 in the distal direction "DD" and the left nozzle portion 430 in the proximal direction "PD", which causes the right pivot rod 232 and the left pivot rod 234 move the end actuator to the left around the pivot point 50. Such movement of the left and right pivot rods 232, 234 results in the application of a thrust motion to the boss 96 by the right pivot band 238 and a pulling motion. to boss 96 by left pivot band 240, resulting in end actuator pivot 20 as shown. Figure 23 illustrates the pivot of the end actuator 20 to the right of the pivot pivot 50. To realize this pivot strip, the physician axially moves the right nozzle portion 412 in the proximal direction "PD" and the left nozzle portion 430 in the distal direction "DD", which causes the right pivot rod 232 and the left pivot rod 234 to move the end actuator 20 to the right around pivot point 50. Such movement of the left and right pivot rods 232, 234 results in a thrust motion being applied to boss 96 by left pivot band 240 and a pulling motion to boss 96 by right pivot band 238, resulting in pivoting end actuator 20, as shown. Although the hinge assembly 230, as described above, employs two rods or elongated hinge members, in alternative embodiments, only one elongate hinge member is employed.
[00097] Figures 24 and 25 illustrate an alternative nozzle modality 410' that can be employed in place of the nozzle modality 410, described above. In this embodiment, the nozzle 410' is fabricated from a right nozzle portion 412' that is axially movable relative to a left nozzle portion 430'. As can be seen in these Figures, the left nozzle portion 430' has a left axial opening 460 therein that defines a left axial shoulder 462 which is adapted to be slidably engaged by a right locking portion 470. , the right nozzle portion 412 has a right axial opening 472 which has a right axial shoulder 474 which is adapted to be slidably engaged by a left locking portion 464. Such arrangement serves to join the nozzle portion together. right 412' to the left mouthpiece portion 430, around the proximal closure rod 141, while allowing these portions to move axially relative to one another. The right nozzle portion 412' has a right opening 452' therein to receive the right pivot pin 450 therein and the left nozzle portion 430' has a left opening 462' therein to receive the left pivot pin 460 therein. Reciprocating nozzle 410' is otherwise operated in the manner described above to pivot end actuator 20 about pivot pivot 50 and pivot axis B-B.
[00098] Figures 26 to 33 illustrate another modality of non-limiting articulation control system of the present invention, generally designated as 500. These components, which are the same components used in the above-described modalities, will be marked with the same numbers of element and the elements versed in the art can refer to the description presented earlier in this document which explains its construction and operation. In at least one embodiment, pivot control system 500 includes a pivot nozzle 510 that is manufactured in multiple pieces. For example, pivot nozzle 510 has a right nozzle portion 512 that is configured to be secured to a left nozzle portion 530. See Figure 29. In at least one non-limiting embodiment, the right nozzle portion 512 may be provided with clamping posts 513 formed therein, which are sized to be frictionally engaged with corresponding clamping apertures (not shown) in the left nozzle portion 530. The right nozzle portion 512, similarly, may have clamping apertures 515 therein which are sized to frictionally engage corresponding fastening columns 531 in the left nozzle portion 530, to couple the right and left nozzle portions 512, 530. See Figure 29. Other fastening arrangements such as adhesive, welding, mechanical fasteners, snap-on features, etc. can be used to secure the left and right nozzle portions. In various non-limiting embodiments, the right mouthpiece portion 512 has a proximal end 514 with actuating buttons or protrusions 516 formed therein. The right nozzle portion 512 additionally has a distal end 517 that has a fit 518 formed therein for receipt within a fit opening 519 in the proximal closure tube segment 141 to non-rotatably secure the right nozzle portion. 512 to the proximal closure tube segment 141. Similarly, the left nozzle portion 530 has a proximal end 534 with actuating knobs or protrusions 516 formed thereon. The left nozzle portion 530 additionally has a distal end 537 having a fitting 538 formed therein for receipt in a fitting opening 539 in the proximal closure tube segment 141 to non-rotatably secure the left nozzle portion 530 to the proximal closure tube segment 141. See Figures 31 through 33.
[00099] In at least one non-limiting embodiment, the pivot control system 500 includes a pivot assembly 230. In at least one embodiment, the pivot assembly 230 may comprise a right pivot rod 232 and a left pivot rod 234 The left and right pivot rods 232, 234 can be configured as shown in Figure 29, and be fabricated from stainless steel or other suitable material. Left and right pivot rods 232, 234, when movably supported within proximal closure tube segment 141, as illustrated, serve to define a centrally disposed elongated slot 236 that is configured to accommodate axial movement of the trigger bar 180. A right pivot band 238 projects distally from a distal end 233 of the right pivot rod 232 and a left pivot band 240 projects distally from the distal end 239 of the left pivot rod 234. In Various Embodiments , hinge bands 238, 240 are secured to protrusion 96. For example, bands 238, 240 can be pivotally secured to protrusion 96. Left and right hinge rods 232, 234 are slidably inserted into the lug segment. hollow proximal closure tube 141. The right pivot rod 232 has a right pivot pin 550 that is secured to it and protrudes laterally from it through a right slot 251 in the proximal closure tube segment 141. Similarly, the left pivot rod 234 has a left pivot pin 560 that is secured thereto and projects laterally from it through a left slot 255 in proximal closure tube segment 141.
[000100] In at least one non-limiting embodiment, pivot control 500 includes an actuator assembly 562 that protrudes through openings 564, 566 in nozzle 510 and is selectively pivotable about an actuator axis HH, which is substantially transverse to the longitudinal axis AA. In various forms, the actuator assembly 562 comprises a first actuator portion 570 that is coupled to a second actuator portion 580. The first actuator portion 570 has a pivot hole 571 therethrough that is adapted to pivotally receive , a first actuator pin 590 that is coupled to the proximal closure tube segment 141. See Figures 28 and 19. Similarly, the second actuator portion 580 has a pivot hole 581 therethrough that is adapted to receive, pivotally, a second actuator pin 592 which is coupled to the proximal closure tube segment 141. The first and second actuator pins 590, 592 serve to define the axis of the actuator HH, which is substantially transverse to the longitudinal axis AA and around which the actuator assembly 562 can pivot. The first actuator portion 570 can be attached to the second actuator portion 580 by a variety of methods. In the illustrated version, for example, first actuator portion 570 has a pair of clamping posts 572 that are sized to be frictionally received within corresponding clamping holes (not shown) in second actuator portion 580. the second actuator portion 580 may have clamping posts 580 that are sized to be frictionally received within the clamping holes 574 in the first actuator portion, so that when the first and second actuator portions 570, 580 are joined, the they form the actuator assembly 562. However, the first and second actuator portions 570, 580 can be coupled using any suitable means such as adhesive, snap-on features, fasteners, etc.
[000101] As can be seen in Figures 28 and 29, the first actuator portion 570 operatively interfaces with the first pivot rod 232 to effect the axial movement thereof within the proximal closure tube segment 141, by means of a first cam slot 576 which is configured to receive a portion of the right pivot pin 550 therein. Thus, by pivoting the first actuator portion 570 around the actuator geometry axis HH, the interaction between the first cam slot 576 and the right pivot pin 550 will cause the first pivot rod 232 to move axially within of the proximal closure tube segment 141. Similarly, the second actuator portion 580 operatively interfaces with the second pivot rod 234 to effect axial movement thereof within the proximal closure tube segment 141 by means of a second cam slot 586 configured to receive a portion of left pivot pin 560 therein. Thus, when the second actuator portion 580 pivots about the actuator geometry axis HH, the interaction between the second cam slot 586 and the left pivot pin 560 will cause the second pivot rod 234 to move axially within the proximal closure tube segment 141.
[000102] The operation of the articulation control system 500 can be understood by referring to Figures 26 and 31 to 33. Turning first to Figure 26, to rotate the proximal closure tube segment 141 and finally the actuator 20 (shown in Figures 31 through 33) about the longitudinal axis AA, the clinician simply rotates the mouthpiece 510 about the longitudinal axis AA, as represented by the arrow "I" in Figure 26. Figure 31 illustrates end actuator pivot 20 to the left of pivot pivot 50. To accomplish this pivot range, the clinician simply pivots actuator assembly 562 in the "J" direction (shown in Figure 30) around the geometry axis of the actuator HH . Such movement of actuator assembly 562 results in interaction between right pivot pin 550 and right cam slot 576, which results in axial movement of right pivot rod 232 in the distal "DD" direction. Such movement of actuator assembly 562 also results in interaction between left pivot pin 560 and left cam slot 586, which simultaneously results in axial movement of left actuator rod 234 in the proximal "PD" direction. Such movement of the left and right hinge rods 232, 234 results in the application of a thrust movement to boss 96 by right hinge band 238 and a pulling movement to boss 96 by left hinge band 240, resulting in the articulation of the actuator. end 20 as shown. Figure 33 illustrates the pivot of end actuator 20 to the right of pivot pivot 50. To accomplish this pivot range, the clinician pivots actuator assembly 562 in the "K" direction (shown in Figure 30) around the axis. actuator geometry HH. Such movement of actuator assembly 562 results in interaction between right pivot pin 550 and right cam slot 576, which results in axial movement of right pivot rod 232 in the distal "DD" direction. Such movement of actuator assembly 562 also results in interaction between left pivot pin 560 and left cam slot 586 which simultaneously results in axial movement of left actuator rod 234 in the proximal "PD" direction. Such movement of the left and right hinge rods 232, 234 results in the application of a thrust movement to boss 96 by right hinge band 240 and a pulling movement to boss 96 by left hinge band 238, which results in actuator hinge end 20 as shown. Although the hinge assembly 230, as described above, employs two rods or elongated hinge members, in alternative embodiments, only one elongate hinge member is employed.
[000103] Figures 34 to 42 illustrate another modality, not limiting of the present invention, of the articulation control system, generally designated as 600. These components, which are the same components used in the modalities described above, will be marked with the same element numbers and the elements skilled in the art may refer to the description presented earlier in this document which explains their construction and operation. In this embodiment, the pivot control system 600 includes a pivot nozzle 610 that is manufactured in multiple pieces. For example, pivot nozzle 610 has an upper nozzle portion 612 that is configured to be secured to a lower nozzle portion 630. See Figure 38. In at least one non-limiting embodiment, the upper nozzle portion 612 may be provided with attachment columns (not shown) formed therein, which are sized to be frictionally engaged with corresponding attachment openings 631 in the lower nozzle portion 630. Other attachment arrangements such as adhesive, mechanical fasteners, snap-on features, etc. ., can be used to secure the upper and lower nozzle portions 612, 630. In various non-limiting embodiments, the upper nozzle portion 612 has a proximal end 614 with actuating buttons or protrusions 616 formed thereon. Similarly, the lower nozzle portion 630 has a proximal end 634 with actuating knobs or protrusions 616 formed therein.
[000104] In at least one non-limiting embodiment, the pivot control system 600 includes a pivot set 700. In at least one embodiment, the pivot set 700 may comprise a right pivot band 710 and a left pivot band 730, which are received with a proximal closure tube segment 750. The right hinge band 710 has an elongated right band portion 712 and a proximal actuating portion 714. Similarly, the left hinge band 730 has a portion of left elongated band 732 and a proximal actuation portion 734. Left and right hinge bands 710, 730 may be fabricated from stainless steel or other suitable material. Proximal closure tube segment 750 comprises a hollow tube which may be fabricated, for example, from stainless steel or other suitable material. In at least one non-limiting embodiment, the hollow proximal closure rod segment 750 has a right band passage 752 and a left band passage 754 formed in its wall. The center of the proximal closure tube segment 750 provides a passageway to accommodate the back or proximal frame portion of the device (not shown) as well as the trigger bar (not shown), in the various ways described above. As illustrated in Figure 38, the elongated right hinge band portion 712 is slidably supported within the right band passage 752 and the elongated left hinge band portion 732 is slidably supported in the left band passage 754. In various non-limiting embodiments, pivot bands 712, 732 are secured to boss 96. See Figures 40 and 42. For example, bands 238, 240 can be pivotally secured to boss 96. Left and right hinge rods 232, 234 are slidably inserted into hollow proximal closure tube segment 141. Right pivot rod 232 has a right pivot pin 550 which is secured thereto and projects laterally therefrom through a straight slot 251 in the proximal closure tube segment 141. Similarly, left pivot rod 234 has a left pivot pin 560 that is secured thereto and projects laterally from it. through a left slot 255 in the proximal closure tube segment 141.
[000105] The nozzle 610 is non-rotatably attached to the proximal closure stem segment 700, so that the rotation of the nozzle 610 around the longitudinal axis AA will result in the rotation of the end actuator 20 about the axis longitudinal A-A. In at least one non-limiting embodiment, the nozzle 610 has a fit 613 that extends to a groove 751 in the proximal closure tube segment 750. See Figure 38. rotatable, the nozzle 610 to the proximal closure tube segment 750, while facilitating axial movement of the nozzle 610 relative thereto. As can also be seen in Figures 37 and 38, the upper nozzle portion 612 additionally has an actuation notch 640 formed therein that is configured to operatively engage a pivot member or actuation pivot plate 650. In at least one non-limiting embodiment, pivot plate 650 comprises a right pivot plate portion 652 and a left pivot plate portion 670. The right pivot portion has a pivot pin 654 formed therein that is adapted to be hingedly received into a pivot hole 780 in the proximal closure tube segment 750. See Figure 42. Similarly, the left pivot plate portion 670 has a right pivot pin 672 formed therein that is adapted to be received in a manner. hinged within a pivot hole 682 in proximal closure tube segment 750. Right and left pivot pins 654, 672 are coaxially aligned with each other to define a geometric axis of actuation LL, around which al the pivot plate 650 is pivotable and which is substantially transverse to the longitudinal axis "L-L". The right and left pivot plate portions 650, 670 are secured by posts (not shown) and holes 655, which are designed for frictional engagement. The right and left pivot plate portions 650, 670 can also be secured by adhesive or other suitable fastening arrangement. As seen in Figures 36, 37, and 39, the proximal closure tube segment 750 has upper and lower clearance slots 753, 755 to facilitate pivotal displacement of the pivot plate 650 around the actuation axis L-L (Figure 36).
[000106] As can be seen further in Figures 37 to 40 and 41, the right pivot plate portion 650 has a lower right actuation slot 656 which is configured to align with a corresponding lower left actuation slot 674 in the left pivot plate 670 to form a lower actuation slot 676 in pivot plate 650 to receive and operatively engage an actuator tab 716 formed on actuator portion 714 of actuator band assembly 710. The right pivot plate portion 650 has an upper right hinge groove 658 that is configured to align with a corresponding upper left hinge groove (not shown) in left pivot plate portion 670 to form an upper hinge groove 678 in pivot plate 650 for receiving and operatively engaging an actuator tab 736 formed on the actuator portion 734 of the actuator band assembly 730.
[000107] The operation of the articulation control system 600 can be understood by referring to Figures 39 to 42. Returning first to Figures 39 and 40, so that the end effector 20 performs pivotal movement in the right direction around the point pivot 50, the physician axially pushes the mouthpiece 610 axially in the distal direction "DD". This movement of the nozzle 610 in the distal direction "DD", causes the pivot plate 650 to pivot around the actuation axis LL in the direction "M" (Figure 39), thus pushing the left pivot band assembly 730 in the distal direction "DD" and pulling the hinge band assembly 750 in the proximal direction "PD". This axial movement of the nozzle 610 and right and left hinge band assemblies 710, 730 results in the application of a pushing motion to boss 96 by the left hinge band assembly 730 and a pulling motion over boss 96, applied by the right articulation band assembly 710, which results in the articulation of the end effector 20, as shown in Figure 40. Likewise, for the end effector 20 to perform a pivotal movement around the pivot point 50 in the left direction ( Figure 42), the doctor pulls the mouthpiece 610 in the proximal "PD" direction. Such movement of the nozzle 610 in the proximal "PD" direction causes the pivot plate 650 to pivot around the actuation axis LL in the "N" direction (Figure 41), thus pushing the right hinge band assembly 710 in the distal direction "DD" and pulling the left hinge band assembly 750 in the proximal direction "PD". This axial movement of the nozzle 610 and right and left pivot band assemblies 710, 730 results in the application of a pushing motion over boss 96 by the right pivot band assembly 710 and a pulling motion over boss 96 by the pivot band assembly 730, which results in pivoting end effector 20 as shown in Figure 42. To rotate end actuator 20 about the longitudinal axis AA, the clinician simply rotates nozzle 610 about the axis longitudinal geometric AA. Such action can be performed by a portion of the same hand that is supporting the instrument handle. Although the hinge assembly 230, as described above, employs two rods or elongated hinge members, in alternative embodiments, only one elongate hinge member is employed.
[000108] Figures 43 to 50 illustrate another modality of the articulation control system of the present invention, generally designated as 800. These components, which are the same components used in the above-described modalities, will be marked with the same element numbers and the elements versed in the art can refer to the description presented earlier in this document which explains its construction and operation. In at least one non-limiting embodiment, pivot control system 800 includes a pivot nozzle 810 that is manufactured in multiple pieces. For example, the hinge nozzle 810 has a first nozzle portion 812 that is configured to be secured to a second nozzle portion 830. See Figures 44 to 46. In at least one non-limiting embodiment, the straight nozzle portion 812 and the left mouthpiece portion 830 are secured by a collection of posts 813, which are frictionally received in corresponding apertures 815. can be used to secure the first and second nozzle portions 812, 830. In various non-limiting embodiments, the first nozzle portion 812 has a proximal end 814 with actuating buttons or protrusions 816 formed thereon. Similarly, the second nozzle portion 830 has a proximal end 834 with actuating buttons or protrusions 816 formed therein.
[000109] In at least one non-limiting embodiment, the pivot control system 800 includes a selectively lockable pivot set 900. In at least one non-limiting embodiment, the pivot set 900 may comprise a straight pivot band 910 and a left hinge band 930 which are received with a back segment 850, which is attached to the instrument handle (not shown). The right hinge band 910 has an elongated right band portion 912 and a proximal actuating portion 914 that has a straight actuating tab 916 formed therein. Similarly, the left hinge band 930 has a left elongated band portion 932 and a proximal actuating portion 934 that has a left actuating tab 936 formed therein. Left and right hinge bands 910, 930 can be fabricated from stainless steel or other suitable material.
[000110] In various non-limiting embodiments, the back segment 850 comprises a hollow tube that can be fabricated, for example, from stainless steel or other suitable material. In at least one non-limiting embodiment, hollow back segment 850 has a right band passage 852 and a left band passage 854 formed in its wall. The center of the back segment 850 provides a passage 851 sized and configured to accommodate the back or proximal frame portion of the device 100 (shown in Figure 2) as well as the trigger bar 180 (shown in Figure 2), in the various ways described. above. As illustrated in Figure 47, the elongated right hinge band portion 912 is slidably supported within the right band passage 852 and the elongated left hinge band portion 932 is slidably supported in the left band passage 854. In various non-limiting embodiments, the hinge bands 912, 932 are secured to the protrusion 96 of the end actuator frame 90, as discussed above.
[000111] As can be seen in Figures 44 to 47 and 49, in at least one non-limiting mode, the left and right actuating tabs 916, 936 are configured for operational engagement with a pivot plate or actuation 980. , the pivot plate 980 comprises a first pivot plate portion 982 and a second pivot plate portion 990. The first pivot plate portion 982 has a first pivot pin 984 formed therein that is adapted to be so received. hinged into a first pivot hole 853 in the back segment 850. See Figures 44 and 46. Similarly, the second pivot plate portion 990 has a second pivot pin 992 formed therein that is adapted to be received from hingedly within a second pivot hole 852 in the back segment 850. The first pivot pin 984 also extends through a first elongated slot 954 in a proximal closure tube segment 950.pivot 992 extends through a second elongated slot 956 in proximal closure tube segment 950. Such an arrangement allows proximal closure tube segment 950 to move axially on back segment 850 while facilitating pivotal displacement of the 980 pivot plate in relation to that. The first and second pivot pins 984, 992 are coaxially aligned with each other to define an actuation axis N-N, around which the pivot plate 980 can pivot and which is substantially transverse to the longitudinal axis "A-A". See Figure 45. The first and second portions of the pivot plate 982, 990 are secured by posts 983 and holes 993 that are designed for frictional engagement. The first and second pivot plate portions 982, 990 may also be secured by adhesive, welding, snap-on features, or other suitable fastening arrangements.
[000112] As seen in Figure 49, the back segment 850 has a right tab slot 860 through which the right actuator tab 916 extends. The back segment 850 additionally has a left flap groove 862 through which the left hinge flap 936 extends. In addition, the right actuator tab 916 extends through a right slot 960 in the proximal closure tube segment 950 and the left actuator tab 936 extends through a left slot 962 in the proximal closure tube segment 950. as can be seen additionally in Figures 44 to 47, the first pivot plate portion 982 has a straight actuation slot 987 which is configured to align with a corresponding straight actuation slot (not shown) in the second pivot plate portion 990 , to form a right pivot groove 995 in the pivot plate 980 to receive and operatively engage the right actuator tab 916 therein. Similarly, the right pivot plate portion 982 has a left actuation slot 988 that is configured to align with a corresponding left actuation slot 996 in the second pivot plate portion 990 to form a left pivot slot 997 in the pivot plate 980 to receive and operatively engage the left actuator tab 936 thereon.
[000113] In various non-limiting embodiments, the hinge nozzle 810 is non-rotatably secured to a proximal closure rod segment 950, so that rotation of the hinge nozzle 610 around the longitudinal axis AA will result in rotation of the end actuator 20 about the longitudinal axis AA. In at least one non-limiting embodiment, the hinge nipple 810 has a fit 818 that extends into a corresponding elongated slot 951 in the proximal closure tube segment 950 and the corresponding slot 859 in the back segment 850, as shown in Figure 49 Such an arrangement facilitates axial movement of the hinge nipple 810 relative to the proximal closure tube segment 950 and the back segment 950, while also facilitating the rotation of the proximal closure tube segment 950 as a unit. , by rotating the nozzle 810 about the longitudinal axis AA. As can also be seen in Figures 44 and 49, an actuator notch 817 is provided on pivot nipple 810 to engage pivot plate 980. In this way, axial movement of nipple 810 will cause pivot plate 980 to pivot at around the geometric axis of action NN.
[000114] To pivot the end actuator in the left direction around the pivot point or geometric pivot axis, the clinician moves the pivot nipple 810 axially in the distal direction "DD". Such movement of the hinge nozzle 810 in the distal direction "DD" causes the pivot plate 980 to pivot around the geometric axis of actuation NN, thus moving the right hinge band 910 in the distal direction "DD" and pulling the hinge band. left joint 930 in the proximal direction "PD". Such axial movement of the hinge nozzle 810 and the left and right hinge bands 910, 930 results in the application of a thrust movement to the boss 96 by the right hinge band 910 and a pulling movement to the boss 96 by the hinge band assembly left 930, which results in the end actuator pivoting. See Figure 49. Similarly, to pivot the end actuator around the pivot point or pivot axis in the right direction, the clinician pulls pivot nipple 810 in the proximal "PD" direction. Such movement of the nozzle 810 in the proximal direction "PD" causes the pivot plate 980 to pivot around the geometric axis of actuation NN thereby pushing the left hinge band 930 in the distal direction "DD" and pulling the right hinge band 910 in the proximal direction "PD". Such axial movement of the hinge nozzle 810 and the left and right hinge bands 910, 930 results in the application of a thrust movement to boss 96 by left hinge band 930 and a pulling movement to boss 96 by right hinge band 910 , which results in the end actuator pivoting to the right of the longitudinal axis AA. To rotate the end actuator about the longitudinal axis A-A, the clinician simply rotates the swivel nipple 810 around the longitudinal axis A-A.
[000115] As discussed above, the proximal closure tube segment 950 interfaces with the close trigger such that when the clinician actuates the close trigger, the proximal closure tube segment 950 moves in the distal direction. In various non-limiting embodiments, the distal end portion of the proximal closure tube segment can be configured as shown, for example, in Figure 2, to be hingedly coupled to the distal closure tube segment 150 to apply the motions. opening and closing to the fixed jaw 130. In various non-limiting embodiments, the hinge locking system 1000 is configured to be locked when the proximal closure tube segment 950 is axially moved in the distal direction "DD", and to be unlocked when the proximal closure tube segment 950 is axially moved in the proximal "PD" direction.
[000116] More specifically, as can be seen in Figure 45, the right hinge band 910 has a plurality of straight locking detents 1010 formed thereon. Each detent 1010 corresponds to a particular angular or pivotal orientation of the end actuator about the pivot axis. The right locking detents 1010 are configured to be engaged by a right locking ball 1012, which is movably supported in a right locking hole 1014 in the back segment 850. Similarly, the left pivot band 930 has a plurality of left locking detents 1020 formed therein, which are configured to be engaged by a left locking ball 1022, which is movably supported in a left locking hole 1024 in the back segment 850. See Figure 49. The ball The right locking cavity 1012 is received in an elongated right locking cavity 1016 formed in the proximal closure tube segment 950. Such elongated locking cavity 1016 provides sufficient clearance for the right locking ball 1012 to move radially, in accordance with the hinge band. Right 912 is moved axially within the back segment 850. As can be seen more particularly in Figur. at 48 and 50, the proximal end 1017 of the elongated right locking cavity 1016 has a locking elevation 1018 formed therein. Similarly, left locking ball 1022 is received in an elongated left locking cavity 1026 formed in proximal closure tube segment 950. Such elongated locking cavity 1026 provides sufficient clearance for left locking ball 1022 to move radially as the left hinge band 932 is moved axially within the back segment 850. As can be seen more particularly in Figure 49, the proximal end of the elongated left locking cavity 1026 has a left locking elevation 1028 formed therein.
[000117] The operation of the articulation control system 800 and the articulation locking system 1000 will now be described, with reference to Figures 47 to 50. In various non-limiting embodiments, when the physician wishes to articulate the end actuator around the geometric axis of articulation, the nozzle 810 is axially moved in a desired direction, in the manner described above. The clinician can perform this action with the same hand he is using to grasp and support the instrument handle. During the pivoting process, the closing trigger has not been actuated and the proximal closing tube 950 is in the "open" position, as shown in Figures 47 and 48. As the right pivot band 912 is moved axially, it is allowed to the right locking ball 1012 moves sufficiently in a direction radially opposite to the right pivot band 912 to allow it to move axially thus, and, as the left pivot band 932 is moved axially, the ball is allowed to left locking bracket 1022 moves sufficiently in the opposite direction radially to the left pivot band 932 to allow it to move axially thereby. As the clinician advances the mouthpiece 810 in the proper axial direction and the left and right hinge bands 912, 932 move beyond the right and left locking balls 1012, 1022, respectively, the clinician receives tactile feedback as per the 1010 locking detents , 1020 movably engage locking balls 1012, 1022, respectively. Once the physician has reached the desired amount of articulation, which corresponds to a position where the right locking ball 1012 engages a right locking detent 1010, which corresponds to that hinged position, and the left locking ball 1022, so similarly, engages the left locking detent 1020 which corresponds to that hinged position, the clinician can then activate the closing trigger.
[000118] As discussed above, when the clinician activates the closure trigger, the proximal closure tube segment 950 is axially advanced in the distal "DD" direction. As the proximal closure tube segment 950 is distally advanced, the right locking riser 1018 engages the right locking ball 1012 and presses it radially inward into locking engagement with the corresponding right locking detent 1010. the left locking riser 1028 engages the left locking ball 1022 and presses it radially inward into locking engagement with the corresponding left locking detent 1020. Further axial advancement of the proximal closure tube segment 950 in the distal direction "DD " will continue to press the right and left locking balls 1012, 1022 into the locking engagement to retain the end actuator in the desired pivot position while the fixed jaw is closed and the instrument is additionally used. After the end actuator has been used "tripped" and the close trigger is unlocked to return to the open position, the proximal end tube segment 950 is moved in the proximal "PD" direction to the home position where the hinge 912, 932 can be axially moved, if desired, to guide the end actuator into the desired position for removal from the surgical site. As such, such a linkage locking system is essentially activated by applying closing motions to the end actuator. Although the hinge assembly, as described above, employs two rods or elongated hinge members, in alternative embodiments, only one elongated hinge member is employed. Similarly, in alternative embodiments, the pivot locking system may only employ a locking ball arrangement configured to engage the locking detents with the corresponding elongated pivot member. Furthermore, in embodiments employing two elongated pivot members, only one locking ball can be employed to lock one of the pivot members by applying a closing force to the end actuator.
[000119] The devices described herein may be designed to be disposed of after a single use, or they may be designed to be used multiple times. In either case, however, the device can be refurbished for reuse after at least one use. Reconditioning can include any combination of steps of disassembling the device, followed by cleaning or replacing particular parts, and subsequent reassembly. In particular, the device can be disassembled, and any number of parts or particular parts of the device can be selectively exchanged or removed, in any combination. After cleaning and/or changing particular parts, the device can be reassembled for subsequent use in a reconditioning facility or by a surgical team immediately prior to a surgical procedure. Those skilled in the art will appreciate that reconditioning a device can use a variety of techniques for disassembly, cleaning or exchange, and reassembly. The use of such techniques, and the resulting refurbished device, are all within the scope of this order.
[000120] Preferably, the inventions described herein will be processed prior to surgery. First, a new or used instrument is obtained and, if necessary, cleaned. The instrument can then be sterilized. In a sterilization technique, the instrument is placed in a closed and sealed container, such as a plastic or TYVEK bag. The container and instrument are then placed in the field of radiation that can penetrate the container, such as gamma radiation, X-rays or high energy electrons. Radiation kills bacteria in the instrument and in the container. The sterilized instrument can then be stored in a sterile container. The sterile container keeps the instrument sterile until it is opened at the medical facility.
[000121] Any patent, publication or other descriptive material, in whole or in part, which is said to be incorporated into the present invention by way of reference, is incorporated into the present invention only to the extent that the incorporated materials do not enter into conflict with existing definitions, statements or other descriptive material presented in this description. Accordingly, and to the extent necessary, the description as explicitly stated herein supersedes any conflicting material incorporated herein by reference. Any material, or portion thereof, which is hereby incorporated by reference into the present invention, but which conflicts with existing definitions, statements, or other descriptive materials set forth herein will be incorporated herein only to the extent that no conflict. will appear between the embodied material and the existing descriptive material.
[000122] Although this invention has been described as having exemplary drawings, the present invention may be further modified within the spirit and scope of the description. It is therefore intended that this application will cover any variations, uses or adaptations of the invention using its general principles. Additionally, this application is intended to cover such changes to the present description as is known or customary practice in the art to which this invention belongs.

权利要求:
Claims (2)
[0001]
1. A hinged surgical instrument, the instrument comprising: a rod (141) defining a longitudinal axis (A-A); and an end effector (20) pivotally coupled to the rod (141) for selective pivotal displacement around a pivot axis transverse to the longitudinal axis (AA); characterized by the fact that the instrument further comprises: a nozzle assembly ( 410) comprising: a first nozzle segment (412) movably supported on the stem (141); and a second nozzle segment (430) movably coupled to the first nozzle segment (412) and movably supported on the shaft (141) such that the first and second nozzle segments (412, 430) can be selectively moved on the shaft. (141) in relation to each other and wherein the articulated surgical instrument further comprises: a hinge assembly (230) that interfaces with the end effector (20) and the first and second mouthpiece segments (412, 430) such which movement of the first nozzle segment (412) in a first axial direction causes the hinge assembly (230) to apply a first hinge movement to the end effector (20) and movement of the second nozzle segment (430) in a second axial direction causes the hinge assembly (230) to apply a second hinge movement to the end effector (20).
[0002]
2. A hinged surgical instrument according to claim 1, characterized in that the hinge assembly (230) comprises: a first elongated hinge member (232) having a first proximal end and a first distal end wherein the first distal end is coupled to the end effector (20) and the first proximal end interfaces with the first segment of the mouthpiece (412); and an elongated second hinge member (242) having a second proximal end and a second distal end wherein the second distal end is coupled to the end effector (20) and wherein the second proximal end interfaces with the second segment of the mouthpiece ( 430).

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法律状态:
2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

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2019-10-08| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

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2020-11-17| B07A| Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]|

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2021-05-11| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

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2021-07-13| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 13/03/2012, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

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申请号 | 申请日 | 专利标题

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US13/048,579|2011-03-15|

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US13/048,579|US8926598B2|2011-03-15|2011-03-15|Surgical instruments with articulatable and rotatable end effector|

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PCT/US2012/028925|WO2012125635A2|2011-03-15|2012-03-13|Surgical instruments with articulatable and rotatable end effector|

---