Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS20060185682 A1
Publication typeApplication
Application numberUS 11/410,861
Publication dateAug 24, 2006
Filing dateApr 24, 2006
Priority dateFeb 17, 2004
Also published asDE602005000938D1, DE602005000938T2, EP1563794A1, EP1563794B1, US7097089, US20050184125
Publication number11410861, 410861, US 2006/0185682 A1, US 2006/185682 A1, US 20060185682 A1, US 20060185682A1, US 2006185682 A1, US 2006185682A1, US-A1-20060185682, US-A1-2006185682, US2006/0185682A1, US2006/185682A1, US20060185682 A1, US20060185682A1, US2006185682 A1, US2006185682A1
InventorsStanislaw Marczyk
Original AssigneeTyco Healthcare Group Lp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Surgical stapling apparatus with locking mechanism
US 20060185682 A1
Abstract
The present disclosure provides for a loading unit for use with and/or supportable on a distal end of a surgical stapling apparatus. The loading unit includes a housing portion including a distal end and a proximal end, a drive assembly slidably supported within the housing portion of the loading unit, and a locking mechanism supported on the housing portion of the loading unit. The locking mechanism has a first position wherein the locking mechanism engages the drive assembly and maintains the position of the drive assembly in a ready-to-load position relative to the housing portion of the loading unit. The locking mechanism is pivotable to a second position wherein the locking mechanism disengages the drive assembly and enables the drive assembly to move relative to the housing portion.
Images(17)
Previous page
Next page
Claims(18)
1. A surgical apparatus comprising:
a body;
a handle supported by the body; and
a loading unit supportable on a distal end of the body, the loading unit including:
a housing portion including a distal end and a proximal end;
a drive assembly supported for axial movement within the housing portion of the loading unit, the drive assembly having a proximal-most position relative to the housing portion of the loading unit; and
a locking mechanism supported on the housing portion of the loading unit, the locking mechanism having a first position wherein the locking mechanism engages the drive assembly and maintains the drive assembly in the proximal-most position, the locking mechanism being movable to a second position wherein the locking mechanism disengages the drive assembly and allows the drive assembly to move relative to the housing portion.
2. The surgical apparatus of claim 1, wherein the locking mechanism includes:
a lever having a first end pivotably connected to the housing portion and a second free end; and
a projection extending radially inward from the lever, wherein the projection selectively engages an engagement surface formed on the drive assembly such that when the locking mechanism is in the first position the projection engages the engagement surface of the drive assembly and when the locking mechanism is in the second position the projection is disengaged from the engagement surface of the drive assembly.
3. The surgical apparatus of claim 2, wherein the body comprises an elongate body and has a control rod disposed therein for axial movement, the control rod being operatively connected to the handle.
4. The surgical apparatus of claim 3, wherein the drive assembly is in a position to connect to a distal end of the control rod when the drive assembly is in the proximal-most position.
5. The surgical apparatus of claim 3, wherein when the locking mechanism is moved from the first position to the second position, the lever is pivoted about the distal end thereof such that a longitudinal axis of the lever is angled with respect to a longitudinal axis of the housing portion.
6. The surgical apparatus of claim 5, wherein the elongate body has a channel for receiving a proximal end of the loading unit.
7. The surgical apparatus of claim 6, wherein the locking mechanism is moved from the first position to the second position by a wall defined in the channel of the elongate body, the wall acting on a side surface of the lever as the loading unit is rotated into loaded engagement in the elongate body.
8. The surgical apparatus of claim 2, wherein when the locking mechanism is in the first position the lever is substantially axially aligned with a nub extending radially outward from the proximal end of the housing portion and when the locking mechanism is in the second position the lever is out of axial alignment with the nub of the housing portion.
9. The surgical apparatus of claim 2, wherein the proximal end of the lever includes a detent extending toward the proximal end of the housing portion, and wherein the proximal end of the housing portion includes a recess formed in the surface thereof for receipt of the detent of the lever when the lever is in the first position.
10. The surgical apparatus of claim 9, wherein the locking mechanism further includes a biasing member operatively associated therewith, wherein the biasing member tends to maintain the lever in the first position.
11. The surgical apparatus of claim 4, wherein the surgical apparatus is a stapler.
12. A method of loading a loading unit for a surgical apparatus:
providing a loading unit having a locking mechanism in a first position, the loading unit having a drive assembly supported for axial movement within a housing portion of the loading unit, the drive assembly being engaged by the locking mechanism when the locking mechanism is in the first position;
providing an elongate body and a handle supported by the elongate body, the elongate body having a distal end configured to be assembled with a proximal end of the loading unit, the distal end of the elongate body being configured to move the locking mechanism;
assembling the proximal end of the loading unit with the distal end of the elongate body so that the locking mechanism moves to a second position wherein the locking mechanism disengages the drive assembly.
13. The method of claim 12, wherein the locking mechanism is moved to the second position upon rotation of the loading unit.
14. The method of claim 13, wherein the elongate body has a channel for receiving the proximal end of the loading unit.
15. The method of claim 14, wherein the channel defines a wall for moving the locking mechanism upon rotation of the loading unit.
16. The method of claim 12, wherein the locking mechanism includes a lever with a projection that engages the drive assembly when the locking mechanism is in the first position.
17. The method of claim 16, wherein the lever pivots to the second position so that the projection disengages the drive assembly.
18. The method of claim 14, wherein the proximal end of the loading unit defines at least one nub, and wherein assembling the loading unit includes rotating the loading unit so that the at least one nub enters a slot defined in the channel of the loading unit.
Description
    CROSS-REFERENCE TO RELATED APPLICATION
  • [0001]
    The present application claims the benefit of and priority to U.S. Provisional Application Ser. No. 60/545,621, filed Feb. 17, 2004, the entire content of which being incorporated herein by reference.
  • BACKGROUND
  • [0002]
    1. Technical Field
  • [0003]
    The present disclosure relates to a surgical apparatus, e.g., a surgical stapling apparatus. More particularly, the present disclosure relates to an endoscopic surgical stapling apparatus that includes a locking mechanism for retaining the drive assembly of a loading unit, e.g., a single use loading unit (“SULU”) or disposable loading unit (“DLU”), at a substantially fixed axial position until the SULU or DLU has been loaded with or secured to a surgical stapling apparatus, to ensure proper or complete engagement of the SULU or DLU, especially its drive assembly, to the surgical stapling apparatus. For simplicity, hereinafter, SULU or DLU will be referred to as “DLU”, but it should be understood to include either or both a DLU or SULU.
  • [0004]
    2. Background of Related Art
  • [0005]
    Surgical devices wherein tissue is first grasped or clamped between opposing jaw structure and then joined by surgical fasteners are well known in the art. In some instruments a knife is provided to cut the tissue which has been joined by the fasteners. The fasteners are typically in the form of surgical staples but two part polymeric fasteners can also be utilized.
  • [0006]
    Instruments for this purpose can include two elongated jaw members which are respectively used to capture or clamp tissue. Typically, one of the jaw members carries a staple cartridge which houses a plurality of staples arranged in at least two lateral rows while the other jaw member has an anvil that defines a surface for forming the staple legs as the staples are driven from the staple cartridge. Generally, the stapling operation is effected by cam members that travel longitudinally through the staple cartridge, with the cam members acting upon staple pushers to sequentially eject the staples from the staple cartridge. A knife can travel between the staple rows to longitudinally cut and/or open the stapled tissue between the rows of staples. Such instruments are disclosed, for example, in U.S. Pat. No. 3,079,606 and U.S. Pat. No. 3,490,675.
  • [0007]
    A later stapler disclosed in U.S. Pat. No. 3,499,591 also applies a double row of staples on each side of the incision. This patent discloses a surgical stapler that has a disposable loading unit in which a cam member moves through an elongate guide path between two sets of staggered staple carrying grooves. Staple drive members are located within the grooves and are positioned in such a manner so as to be contacted by the longitudinally moving cam member to effect ejection of the staples from the staple cartridge of the disposable loading unit. Other examples of such staplers are disclosed in U.S. Pat. Nos. 4,429,695 and 5,065,929.
  • [0008]
    Each of the instruments described above is designed for use in conventional surgical procedures wherein surgeons have direct manual access to the operative site. However, in endoscopic or laparoscopic procedures, surgery is performed through a small incision or through a narrow cannula inserted through small entrance wounds in the skin. In order to address the specific needs of endoscopic and/or laparoscopic surgical procedures, endoscopic surgical stapling devices have been developed and are disclosed in, for example, U.S. Pat. No. 5,040,715 (Green, et al.); U.S. Pat. No. 5,307,976 (Olson, et al.); U.S. Pat. No. 5,312,023 (Green, et al.); U.S. Pat. No. 5,318,221 (Green, et al.); U.S. Pat. No. 5,326,013 (Green, et al.); U.S. Pat. No. 5,332,142 (Robinson, et al.); and U.S. Pat. No. 6,241,139 (Milliman et al.), the entire contents of each of which are incorporated herein by reference.
  • [0009]
    Tyco Healthcare Group, LP, the assignee of the present application, has manufactured and marketed endoscopic stapling instruments, such as the Multifire ENDO GIA™ 30 and Multifire ENDO GIA™ 60 instruments, for a number of years. These instruments include a surgical stapling apparatus and a DLU. Typically, the DLU is attached to the apparatus immediately prior to surgery. After use, the DLU can be removed from the apparatus and a new DLU can be fastened to the apparatus to perform additional stapling and/or cutting operations. These instruments have provided significant clinical benefits. Nonetheless, improvements to these instruments are still possible.
  • [0010]
    It would be desirable to provide an improved DLU for a surgical stapling apparatus and an improved surgical stapling apparatus having the DLU loaded thereon.
  • [0011]
    It would also be desirable to provide a locking member for a DLU to assure proper loading of the DLU to the shaft of a surgical stapling apparatus.
  • [0012]
    Accordingly, it is an object of this disclosure to provide an improved DLU which locks or retains its drive assembly in proper position to be loaded onto the shaft of a surgical stapling apparatus (hereinafter referred to as the or a “ready-to-load position”) until the DLU is loaded onto a surgical stapling apparatus to assure that when the DLU is loaded thereto, the drive assembly is properly engaged by, coupled to or connected to a drive member of the shaft, thereby helping to ensure proper operation of the DLU and the surgical stapling apparatus. For example, with the DLU loaded onto the surgical stapling apparatus, after firing of the surgical stapling apparatus, retraction of the control rod will unapproximate or open and/or unclamp the anvil and cartridge assemblies.
  • [0013]
    An object of the disclosure is to provide an improved DLU that includes a locking mechanism that retains the drive assembly in such a ready-to-load position until the DLU is loaded onto the surgical stapling apparatus.
  • [0014]
    Another object of the disclosure is to provide such a locking mechanism for a DLU.
  • [0015]
    Another object of the present disclosure is to provide a locking mechanism for a DLU and a DLU having a locking mechanism, such that firing of the surgical stapling apparatus is prevented unless and until the DLU is loaded onto the shaft of the surgical stapling apparatus.
  • [0016]
    Yet another object of the disclosure is to provide a DLU that, after firing, can be disconnected from the surgical stapling apparatus.
  • [0017]
    Yet another object of the disclosure is to provide a DLU that has only two conditions, one in which it is not loaded and its drive assembly is locked or retained in the ready-to-load position, and another in which the DLU is loaded onto the shaft of a surgical stapling apparatus and in which the drive assembly is unlocked and free to be actuated.
  • [0018]
    Still another object of the present disclosure is to provide the above objects in a roticulating, i.e., roticulable, DLU.
  • SUMMARY
  • [0019]
    In accordance with the present disclosure, a surgical apparatus, e.g., a surgical stapling apparatus, including a locking mechanism for ensuring proper engagement of a disposable loading unit to an end of the surgical apparatus is provided. According to one aspect of the present disclosure the surgical apparatus includes a housing, a handle supported by the housing, and a loading unit supportable on a distal end of the housing. The loading unit includes a housing portion including a distal end and a proximal end, a drive assembly slidably supported within the housing portion of the loading unit, and a locking mechanism supported on the housing portion of the loading unit. The locking mechanism has a first position in which the locking mechanism engages the drive assembly and maintains the position of the drive assembly in a ready-to-load position relative to the housing portion of the loading unit. The locking mechanism is movable, preferably pivotable in a plane substantially tangential to an outer surface of the housing portion, to a second position in which the locking mechanism disengages the drive assembly and enables the drive assembly to move relative to the housing portion.
  • [0020]
    Preferably, the locking mechanism includes a lever having a distal end pivotably connected to the housing portion and a free proximal end, and a tooth extending radially inward from the lever. Desirably, the tooth selectively engages an engagement surface, e.g., a notch, formed in, on or of the drive assembly such that when the locking mechanism is in the first position the tooth engages the engagement surface of the drive assembly, and when the locking mechanism is in the second position the tooth is disengaged from the engagement surface of the drive assembly.
  • [0021]
    It is envisioned that when the locking mechanism is urged from the first position to the second position, the lever is pivoted about the distal end thereof such that a longitudinal axis of the lever is angled with respect to a longitudinal axis of the housing portion. The locking mechanism is preferably urged from the first position to the second position by a projection extending radially inward of the elongate body. Desirably, the projection acts on a side surface of the lever as the loading unit is twisted into loaded engagement in the elongate body.
  • [0022]
    Preferably, when the locking mechanism is in the first position the lever is substantially axially aligned with a nub extending radially outward from the proximal end of the housing and when the locking mechanism is in the second position the lever is out of axial alignment with the nub of the proximal end of the housing.
  • [0023]
    The proximal end of the lever can include a nub extending preferably radially toward, the proximal end of the housing. The proximal end of the housing preferably includes a recess formed in the surface thereof for receipt of the lever nub of the lever when the lever is in the first position.
  • [0024]
    The locking mechanism can further include a biasing member operatively associated therewith, wherein the biasing member tends to maintain the lever in the first position.
  • [0025]
    Preferably, the surgical apparatus is a fastener applier or stapler, preferably a laparoscopic or endoscopic stapler.
  • [0026]
    This disclosure also is of a DLU, preferably a roticulator DLU for a surgical fastener applier or stapler.
  • [0027]
    The surgical apparatus may further include an elongate body extending from the housing.
  • [0028]
    It is further envisioned that the proximal end of the housing portion of the loading unit may define an insertion tip.
  • [0029]
    The present disclosure further provides for a loading unit for use with and/or supportable on a distal end of a surgical stapling apparatus. The loading unit includes a housing portion including a distal end and a proximal end, a drive assembly slidably supported within the housing portion of the loading unit, and a locking mechanism supported on the housing portion of the loading unit. The locking mechanism has a first position wherein the locking mechanism engages the drive assembly and maintains the position of the drive assembly in a ready-to-load position relative to the housing portion of the loading unit. The locking mechanism is pivotable, in a plane substantially tangential to an outer surface of the housing portion, to a second position wherein the locking mechanism disengages the drive assembly and enables the drive assembly to move relative to the housing portion.
  • [0030]
    Additional advantages will become apparent from the description which follows, taken in conjunction with the accompanying drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0031]
    The present disclosure will be further described with reference to the accompanying drawings, wherein like reference numerals refer to like parts in the several views, and wherein:
  • [0032]
    FIG. 1 is a top perspective view of a preferred embodiment of the presently disclosed surgical stapling apparatus;
  • [0033]
    FIG. 2 is a top view of the surgical stapling apparatus shown in FIG. 1;
  • [0034]
    FIG. 3 is a side view of the surgical stapling apparatus shown in FIGS. 1 and 2;
  • [0035]
    FIG. 4 is a top perspective view of the surgical stapling apparatus of FIGS. 1-3 with the DLU disengaged from the elongate body of the surgical stapling apparatus;
  • [0036]
    FIG. 5 is a bottom perspective view of a non-articulating DLU for use with the surgical stapling apparatus of FIGS. 1-4;
  • [0037]
    FIG. 6 is a bottom perspective view of the preferred articulating DLU of the surgical stapling apparatus of FIGS. 1-4;
  • [0038]
    FIG. 7 is a top perspective view of the DLU of FIG. 6;
  • [0039]
    FIG. 8 is a top perspective view of the DLU of FIGS. 6 and 7;
  • [0040]
    FIG. 9 is a top perspective view, with parts separated, of the proximal housing portion and mounting assembly of the DLU of FIGS. 6-8;
  • [0041]
    FIG. 10 is an enlarged top perspective view, with parts separated, of a proximal portion of the upper housing half of the DLU of FIGS. 6-9;
  • [0042]
    FIG. 11 is a top perspective view of the proximal housing portion and mounting assembly of the DLU of FIGS. 6-9 with the upper half of housing portion removed;
  • [0043]
    FIG. 12 is a top perspective view, with parts separated, of a portion of the axial drive assembly of the DLU of FIGS. 6-9;
  • [0044]
    FIG. 13 is a top perspective view of the portion of the axial drive assembly of FIG. 11 of the DLU of FIGS. 6-9;
  • [0045]
    FIG. 14 is an enlarged top perspective view of a lower housing half of the housing portion of the DLU of FIGS. 6-9;
  • [0046]
    FIG. 15 is an enlarged perspective view of the distal end of the elongated body of the stapling apparatus shown in FIGS. 1-4, shown with the control rod extending therethrough;
  • [0047]
    FIG. 15 a is an enlarged perspective view of the distal end of the elongate body of FIG. 15, shown without the control rod extending therethrough;
  • [0048]
    FIG. 16 is an enlarged perspective view of the proximal end of the DLU of FIGS. 6-9 illustrating a locking mechanism according to the present disclosure;
  • [0049]
    FIG. 17 is an enlarged top plan view with portions broken away illustrating a stage in the attachment of the DLU of FIGS. 6-9 to the elongate body of the surgical stapling apparatus shown in FIGS. 1-3;
  • [0050]
    FIG. 18 is an enlarged top plan view with portions broken away illustrating another stage in the attachment of the DLU of FIGS. 6-9 to the elongate body of the surgical stapling apparatus shown in FIGS. 1-3;
  • [0051]
    FIG. 19 is an enlarged top plan view with portions broken away illustrating yet another stage in the attachment of the DLU of FIGS. 6-9 to the elongate body of the surgical stapling apparatus shown in FIGS. 1-3;
  • [0052]
    FIG. 20 is a longitudinal cross-sectional view of the proximal end of the DLU of FIGS. 6-9 as taken along line 20-20 of FIG. 16;
  • [0053]
    FIG. 21 is an enlarged transverse cross-sectional view of the proximal end of the DLU of FIGS. 6-9 with the distal end of the elongate body on the proximal end of the DLU as would be taken along 21-21 of FIG. 16, illustrating the locking mechanism in the first position; and
  • [0054]
    FIG. 22 is an enlarged transverse cross-sectional view of the proximal end of the DLU of FIGS. 6-9 with the distal end of the elongate body on the proximal end of the DLU as would be taken along 21-21 of FIG. 16, illustrating the locking mechanism in the second position.
  • DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
  • [0055]
    Preferred embodiments of the presently disclosed surgical apparatus, DLU and locking mechanism or member will now be described in detail with reference to the drawings, in which like reference numerals designate identical or corresponding elements in each of the several views.
  • [0056]
    In the drawings and in the description that follows, the term “proximal”, as is traditional, will refer to the end of the stapling apparatus which is closest to the operator, while the term “distal” will refer to the end of the apparatus which is furthest from the operator.
  • [0057]
    FIGS. 1-4 show a surgical apparatus, e.g., surgical stapling apparatus, generally referred to as 10. In the interest of brevity, this disclosure will focus primarily on systems, methods and structures for loading, engaging, coupling or connecting a disposable loading unit (“DLU”) 16 to surgical stapling apparatus 10. A detailed discussion of the remaining components and method of use of surgical stapling apparatus 10, is disclosed in U.S. Pat. No. 6,241,139.
  • [0058]
    Surgical stapling apparatus 10 is an endoscopic apparatus and includes a handle assembly 12 and an elongated body 14 extending from handle assembly 12. A DLU 16 is releasably secured to the distal end of elongated body 14. While this disclosure relates to the use of a DLU with surgical stapling apparatus 10, it is understood and within the scope of the present disclosure that a single use loading unit (SULU) or other end effector and/or tool assembly can equally be used in cooperation with surgical stapling apparatus 10.
  • [0059]
    DLU 16 includes a tool assembly 17 having a cartridge assembly 18 housing a plurality of surgical staples (not shown) and an anvil assembly 20 movably secured in relation to cartridge assembly 18. As shown herein, DLU 16 is configured to apply six (6) linear rows of staples, each row in the DLU's measuring from about 30 mm to about 60 mm in length. DLUs for applying any number of rows of staples, having staple pockets arranged in various patterns and/or DLUs and end effectors having any other lengths, e.g., 45 mm, are also envisioned. Handle assembly 12 includes a stationary handle member 22, a movable handle member 24, and a barrel portion 26.
  • [0060]
    A rotatable member 28 preferably is mounted on the forward end of barrel portion 26 to facilitate rotation of elongated body 14 and attached DLU 16 with respect to handle assembly 12. An articulation lever 30 preferably is also mounted on the forward end of barrel portion 26 adjacent rotatable member 28 to facilitate articulation of tool assembly 17. Preferably, a pair of knobs 32 are movably positioned along barrel portion 26. Knobs 32 are advanced distally to approximate or close cartridge and/or anvil assembly 18, 20, and retracted proximally to unapproximate or open cartridge and/or anvil assembly 18, 20.
  • [0061]
    As seen in FIG. 4, DLU 16 is desirably selectively removably couplable to elongated body 14. DLU 16 includes a housing portion 200 having a proximal end adapted to releasably engage the distal end of elongated body 14. A mounting assembly 202 is pivotally secured at 203 to the distal end of housing portion 200, and is configured to receive the proximal end of tool assembly 17 such that pivotal movement of mounting assembly 202 about an axis at 203 perpendicular to the longitudinal axis of housing portion 200 effects articulation of tool assembly 17.
  • [0062]
    FIGS. 5-8 show various perspective views of DLU 16. Surgical stapling apparatus 10 is capable of receiving a non-articulating DLU 16 a, as seen in FIG. 5, or an articulating DLU 16, as seen in FIGS. 6-8. U.S. Pat. No. 6,241,139 includes a detailed discussion of articulating and non-articulating DLU.
  • [0063]
    With reference to FIGS. 9-14, DLU 16 includes a mounting assembly 235. Mounting assembly 235 includes an upper and a lower mounting portion 236, 238, respectively. A centrally located pivot member 284 extends from each of upper and lower mounting portions 236, 238 through respective openings 246 a formed in coupling members 246. Coupling members 246 each include an interlocking proximal portion 246 b configured to be received in grooves 290 formed in the distal end of upper and lower housing halves 250, 252 to retain mounting assembly 235 and upper and lower housing halves 250, 252 in a longitudinally fixed position in relation to each other.
  • [0064]
    Upper housing half 250 and lower housing half 252 are contained within an outer sleeve, shell or casing 251. The proximal end of upper housing half 250 includes an insertion tip 193 extending proximally therefrom. Insertion tip 193 includes engagement nubs 254, preferably a pair of diametrically opposed engagement nubs 254, extending radially outwardly therefrom, for releasably engaging the distal end of body 14. Nubs 254 form a bayonet-type coupling with the distal end of body 14. Housing halves 252 and 254 define a channel 400 for slidably receiving axial drive assembly 212 therein. An articulation link 256 is dimensioned to be slidably positioned within a slot 402 formed in upper and lower housing halves 250, 252. A pair of blow out plate assemblies 255 are positioned adjacent the distal end of housing portion 200 adjacent the distal end of axial drive assembly 212 to prevent outward buckling and bulging of drive assembly 212 during articulation and firing of surgical stapling apparatus 10. For a detailed discussion of the structure and operation of blow out plate assemblies 255, reference is made to International Application Serial No. PCT/US02/32031, filed on Oct. 4, 2002, entitled “Surgical Stapling Device”, the entire content of which is herein incorporated by reference.
  • [0065]
    Referring to FIG. 9, optionally, a locking member 288 may be supported on engagement section 270 of axial drive assembly 212. In operation, when axial drive assembly 212 is actuated, by applying a predetermined force to movable handle member 24 to advance axial drive assembly 212 distally, locking member 288 provides an audible and tactile indication that surgical stapling apparatus 10 has been actuated. For a detailed discussion of the structure and operation of locking member 288, reference is made to the aforementioned International Application Serial No. PCT/US02/32031. Locking member 288 may also prevent inadvertent partial actuation of DLU 16, such as during shipping, by locking axial drive assembly 212 at a fixed position within DLU 16 until a predetermined axial force has been applied to axial drive assembly 212.
  • [0066]
    With reference to FIGS. 9-12, axial drive assembly 212 includes an elongated drive beam 266 (FIGS. 11 and 12) including a distal working head 268 (FIGS. 11 and 12) and a proximal engagement section 270. Drive beam 266 may be constructed from a single sheet of material or, preferably, multiple stacked sheets, as shown in FIG. 11. Engagement section 270 includes a pair of resilient engagement fingers 270 a and 270 b which are dimensioned and configured to mountingly engage a pair of corresponding retention slots 272 a and 272 b formed in drive member 272 (FIGS. 11 and 13). Drive member 272 includes a proximal porthole 274 configured to receive distal end 276 of a drive member, e.g., drive rod or control rod 52 (FIGS. 15 and 20-22) when the proximal end of DLU 16 is being engaged with elongated body 14 of surgical stapling apparatus 10. Control rod 52 functions to impart axial movement of drive assembly 212 from handle assembly 12.
  • [0067]
    As seen in FIGS. 9, 10 and 16-22, DLU 16 further includes a locking mechanism 300, preferably, pivotably supported on upper housing half 250. Locking mechanism 300 is manipulatable from a first position, in which drive assembly 212 is maintained in a ready-to-load position, to a second position, in which drive assembly 212 is free to move. DLU 16 is considered to be loaded to elongate body 14 when locking mechanism 300 is in the second position, i.e., when drive assembly 212 is connected to control rod 52 of elongate body 14. Locking mechanism 300 includes a lever 302 including a distal end 304 pivotally connected to upper housing half 250 and a free proximal end 306 in operative association with an outer surface of insertion tip 193. Desirably, distal end 304 is pivotably connected to upper housing half 250, via a pin 308 or preferably a ball-type pivot member. Alternatively, other known pivot structures formed integrally with or separate from upper housing half 250 may be used. Lever 302 further includes a projection, here shown as a tooth 310, extending radially inwardly from the inner surface of lever 302, preferably at a location between distal end 304 and proximal end 306.
  • [0068]
    In use, as best seen in FIGS. 16-22, when locking mechanism 300 is in the first position (i.e., in a ready-to-load, locked, or coupled position) (FIGS. 16, 17, 18, 20 and 21), lever 302 is substantially axially aligned with a longitudinal axis of housing portion 200 such that tooth 310 passes through an aperture 250 a formed in upper housing half 250 and is engaged with an engagement surface, e.g., a notch, shoulder or recess 270 c formed in the edge of engagement section 270 of drive assembly 212 to thereby effectively lock and maintain drive assembly 212 in the ready-to-load position wherein drive assembly 212 is in a retracted or proximal-most position relative to upper housing half 250. When DLU 16 is being coupled to the distal end of body 14, locking mechanism 300 ensures that engagement section 270 of drive assembly 212 is in a position to and properly engages, coupled with or connects to distal end 276 of control rod 52 (see FIGS. 20-22) of surgical stapling apparatus 10. Distal end 276 of control rod 52 has one or more engagement surfaces, preferably, and here shown as, including a head 276 a and a smaller diameter annular recess 276 b just proximal of head 276 a and partially defined by head 276 a. Thereafter, less preferably concomitantly therewith, locking mechanism 300 is manipulated (here rotated) to the second position wherein drive assembly 212 is in an unlocked, operative position in which lever 302 is angled with respect to the longitudinal axis of housing portion 200 such that tooth 310 is released from and/or otherwise disengaged from engagement surface 270 c of engagement section 270 of drive assembly 212 to free drive assembly 212 to move relative to housing portion 212, here, upper and lower housing portion 250, 252 of DLU 16.
  • [0069]
    When locking mechanism 300 is in the second position, DLU is considered loaded onto ad/or into elongate body 14 of surgical stapling apparatus 10. Thus, drive assembly 212 is free to be actuated and reciprocated axially by drive rod 52 to perform its operative functions of approximating and closing anvil and cartridge assemblies 18, 20, driving knife 280 and firing staples, as well as of un-approximating, un-clamping, and retracting drive assembly 212. DLU 16 is considered to be loaded to elongate body 14 when locking mechanism 300 is in the second position, i.e., when drive assembly 212 is connected to control rod 52 of elongate body 14.
  • [0070]
    With continued reference to FIGS. 15-20, preferably lever 302 of locking mechanism 300 further includes a nub or detent 314 extending radially inward from an inner surface 302 a of distal end 306 of lever 302. In use, nub 314 selectively engages and disengages a recess or dimple 193 a formed in the outer surface of insertion tip 193. Preferably, dimple 193 a is substantially in axial alignment with nubs 254 extending radially outward from insertion tip 193. Nub 314 and dimple 193 a create a snap-fit type engagement wherein nub 314 and dimple 193 a cooperate with one another to prevent and/or otherwise inhibit locking mechanism 300 from inadvertently or prematurely pivoting from the first position to the second position and thereby disengaging drive assembly 212. Locking mechanism 300 thus can include nub 314 and dimple 193 a.
  • [0071]
    Preferably, insertion tip 193 includes a recessed area 193 b (FIGS. 10 and 16) formed therein such that locking mechanism 300 does not extend radially outward beyond the outer surface of upper housing half 250. Lever 302 is able to pivot an amount sufficient to allow tooth 310 to disengage engagement surface or shoulder 270 c of engagement section 270 of drive assembly 212 when locking mechanism 300 is in the second position. Locking mechanism 306 preferably includes a spring or other biasing means 312 in operative association with lever 302 and housing portion 200 mounted and/or positioned in such a manner so as to bias lever 302 to the first position. As seen in FIG. 16, spring 312 includes an arm 312 a in contact with a side surface 302 a of lever 302 thereby tending to maintain lever 302 in the first position. The twisting force applied with respect to DLU 16 and/or elongate body 14 of surgical stapling apparatus 10 is sufficient to overcome the bias of spring 312 to allow lever 302 to move to the second position.
  • [0072]
    With continued reference to FIGS. 15-20, a method of use and/or operation of locking mechanism 300, in securing DLU 16 to the distal end of elongate body 14, will be discussed. Initially, with locking mechanism 300 in the first position such that tooth 310 is in locking engagement with shoulder 270 c of engagement section 270, to ensure that drive assembly 212 is in the proper position (e.g., in the proximal-most position) for coupling with head 276 a of distal end 276 of control rod 52, insertion tip 193 of DLU 16 is introduced longitudinally into the distal end of elongate body 14, in the direction of arrow “A”, such that nubs 254 slide into channels 276 d, through and past projections 276 c (see FIGS. 15 and 15 a) extending radially inward from elongate body 14 of surgical stapling apparatus 10 near the distal end thereof.
  • [0073]
    When nubs 254 have reached slots 276 e, and when insertion tip 193 has been fully inserted into the distal end of elongate body 14, DLU 16 is rotated, in the direction of arrow “B” (see FIG. 21). At this point in the coupling, rotation of DLU 16 results in three separate actions, namely, nubs 254 enter slots 276 e, thus connecting DLU 16 to distal end 14 of stapling apparatus 10; projections 276 b of firing rod 52 engage sections 270 a and 270 b of drive assembly 212, thus connecting firing rod 52 and drive assembly 212; and side wall of channel 276 d urges lever 302 (such that side wall of channel 276 d abuts against and engages proximal end of lever 306, preferably against a side surface 302 b of lever 302) of locking mechanism 300 to pivot from the first position to the second position about pivot pin “P” to thereby disengage tooth 310 from shoulder 270 c of engagement section 270 and thereby free drive assembly 212 to allow movement of drive assembly 212 and permit operation or continued operation of surgical stapling apparatus 10.
  • [0074]
    As can be appreciated, if lever 302 has been inadvertently moved to the second position, prior to coupling of DLU 16 to elongate body 14, and drive assembly 212 has prematurely moved from its proximal-most or ready-to-load position, lever 302 can not move to the first position since tooth 310 is not aligned with drive assembly 212 and can not pass in front of shoulder 270 c. In such a situation, tooth 310 will abut against a portion of engagement section 270 to prevent lever 302 from returning to the first position. Thus, upon insertion of DLU 16 into elongate body 14, proximal end 306 of lever 302 will abut against and/or otherwise contact projection 276 c of elongate body 14 and thus prevent loading of DLU 16 to elongate body 14.
  • [0075]
    Accordingly, the attachment of a DLU having a drive assembly which is not in its proximal-most or ready-to-load position is prevented.
  • [0076]
    It will be understood that various modifications may be made to the embodiments disclosed herein. Therefore, the above description should not be construed as limiting, but merely as exemplifications of preferred embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the claims appended hereto.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3079606 *Jan 4, 1960Mar 5, 1963Gritzman Jurji JakovlevichInstrument for placing lateral gastrointestinal anastomoses
US3490675 *Oct 10, 1966Jan 20, 1970United States Surgical CorpInstrument for placing lateral gastrointestinal anastomoses
US3499591 *Jun 23, 1967Sep 20, 1988 Title not available
US4244372 *Feb 27, 1979Jan 13, 1981Kapitanov Nikolai NSurgical instrument for suturing organs
US4429695 *Jul 1, 1982Feb 7, 1984United States Surgical CorporationSurgical instruments
US4520817 *Mar 8, 1982Jun 4, 1985United States Surgical CorporationSurgical instruments
US4589413 *Jul 21, 1983May 20, 1986Malyshev Boris NSurgical instrument for resection of hollow organs
US4605001 *Oct 19, 1984Aug 12, 1986Senmed, Inc.Surgical stapling instrument with dual staple height mechanism
US4608981 *Oct 19, 1984Sep 2, 1986Senmed, Inc.Surgical stapling instrument with staple height adjusting mechanism
US4610383 *Oct 14, 1983Sep 9, 1986Senmed, Inc.Disposable linear surgical stapler
US4633861 *Oct 19, 1984Jan 6, 1987Senmed, Inc.Surgical stapling instrument with jaw clamping mechanism
US4633874 *Mar 15, 1985Jan 6, 1987Senmed, Inc.Surgical stapling instrument with jaw latching mechanism and disposable staple cartridge
US4672964 *Feb 21, 1986Jun 16, 1987Dee Robert NScalpel with universally adjustable blade
US4763669 *Sep 4, 1987Aug 16, 1988Jaeger John CSurgical instrument with adjustable angle of operation
US4863088 *Mar 9, 1988Sep 5, 1989Minnesota Mining And Manufacturing CompanySurgical stapling instrument
US4880015 *Jun 3, 1988Nov 14, 1989Nierman David MBiopsy forceps
US4892244 *Nov 7, 1988Jan 9, 1990Ethicon, Inc.Surgical stapler cartridge lockout device
US4978049 *May 26, 1989Dec 18, 1990United States Surgical CorporationThree staple drive member
US4991764 *Jan 23, 1989Feb 12, 1991Edward Weck IncorporatedSurgical stapling instrument
US5040715 *May 26, 1989Aug 20, 1991United States Surgical CorporationApparatus and method for placing staples in laparoscopic or endoscopic procedures
US5065929 *Apr 1, 1991Nov 19, 1991Ethicon, Inc.Surgical stapler with locking means
US5071052 *Oct 15, 1990Dec 10, 1991United States Surgical CorporationSurgical fastening apparatus with activation lockout
US5074454 *Jun 4, 1990Dec 24, 1991Peters Ronald LSurgical stapler
US5083695 *Dec 18, 1990Jan 28, 1992Minnesota Mining And Manufacturing CompanyStapler and firing device
US5111987 *May 14, 1990May 12, 1992Moeinzadeh Manssour HSemi-disposable surgical stapler
US5129570 *Nov 30, 1990Jul 14, 1992Ethicon, Inc.Surgical stapler
US5141144 *Oct 23, 1991Aug 25, 1992Minnesota Mining And Manufacturing CompanyStapler and firing device
US5152279 *Nov 15, 1991Oct 6, 1992Wilk Peter JRetractor and associated method for use in laparoscopic surgery
US5209747 *Jun 5, 1992May 11, 1993Knoepfler Dennis JAdjustable angle medical forceps
US5246156 *Sep 12, 1991Sep 21, 1993Ethicon, Inc.Multiple fire endoscopic stapling mechanism
US5275608 *Oct 16, 1991Jan 4, 1994Implemed, Inc.Generic endoscopic instrument
US5282826 *Mar 5, 1992Feb 1, 1994Quadtello CorporationDissector for endoscopic and laparoscopic use
US5307976 *Jul 20, 1992May 3, 1994Ethicon, Inc.Linear stapling mechanism with cutting means
US5312023 *Mar 1, 1993May 17, 1994United States Surgical CorporationSelf contained gas powered surgical apparatus
US5318221 *Sep 10, 1992Jun 7, 1994United States Surgical CorporationApparatus and method for placing staples in laparoscopic or endoscopic procedures
US5326013 *Sep 23, 1992Jul 5, 1994United States Surgical CorporationSelf contained gas powered surgical apparatus
US5330502 *Oct 9, 1992Jul 19, 1994Ethicon, Inc.Rotational endoscopic mechanism with jointed drive mechanism
US5332142 *Jun 24, 1993Jul 26, 1994Ethicon, Inc.Linear stapling mechanism with cutting means
US5350391 *Dec 2, 1992Sep 27, 1994Benedetto IacovelliLaparoscopic instruments
US5354311 *Sep 8, 1993Oct 11, 1994Smith & Nephew Dyonics Inc.Deflecting forceps
US5374277 *Apr 20, 1993Dec 20, 1994Ethicon, Inc.Surgical instrument
US5376095 *Nov 4, 1993Dec 27, 1994Ethicon Endo-SurgeryEndoscopic multi-fire flat stapler with low profile
US5383888 *Feb 12, 1992Jan 24, 1995United States Surgical CorporationArticulating endoscopic surgical apparatus
US5397046 *Mar 22, 1993Mar 14, 1995United States Surgical CorporationLockout mechanism for surgical apparatus
US5415334 *May 5, 1993May 16, 1995Ethicon Endo-SurgerySurgical stapler and staple cartridge
US5415335 *Apr 7, 1994May 16, 1995Ethicon Endo-SurgerySurgical stapler cartridge containing lockout mechanism
US5433721 *Jul 15, 1993Jul 18, 1995Ethicon, Inc.Endoscopic instrument having a torsionally stiff drive shaft for applying fasteners to tissue
US5465895 *Feb 3, 1994Nov 14, 1995Ethicon Endo-Surgery, Inc.Surgical stapler instrument
US5467911 *Apr 22, 1994Nov 21, 1995Olympus Optical Co., Ltd.Surgical device for stapling and fastening body tissues
US5474566 *May 5, 1994Dec 12, 1995United States Surgical CorporationSelf-contained powered surgical apparatus
US5474571 *Feb 7, 1994Dec 12, 1995Karl Storz Gmbh & Co.Medical forceps with jaws which first tilt and then open
US5484451 *Sep 3, 1993Jan 16, 1996Ethicon, Inc.Endoscopic surgical instrument and staples for applying purse string sutures
US5486185 *Jun 28, 1991Jan 23, 1996Dexide, Inc.Surgical apparatus
US5487500 *Apr 29, 1994Jan 30, 1996Ethicon Endo-Surgery, Inc.Surgical stapler instrument
US5507426 *Aug 5, 1994Apr 16, 1996United States Surgical CorporationApparatus for applying surgical fasteners
US5535935 *Jun 1, 1995Jul 16, 1996United States Surgical CorporationSurgical stapler with mechanisms for reducing the firing force
US5582617 *Oct 11, 1994Dec 10, 1996Charles H. KliemanSurgical instrument for endoscopic and general surgery
US5584425 *Aug 2, 1995Dec 17, 1996United States Surgical CorporationLockout mechanism for surgical apparatus
US5605272 *Mar 12, 1996Feb 25, 1997Ethicon Endo-Surgery, Inc.Trigger mechanism for surgical instruments
US5630539 *Nov 27, 1995May 20, 1997United States Surgical CorporationLaparoscopic stapler with overload sensor and interlock
US5634584 *May 23, 1996Jun 3, 1997Ethicon Endo-Surgery, Inc.Surgical instrument
US5762255 *Feb 20, 1996Jun 9, 1998Richard-Allan Medical Industries, Inc.Surgical instrument with improvement safety lockout mechanisms
US5797537 *Feb 20, 1996Aug 25, 1998Richard-Allan Medical Industries, Inc.Articulated surgical instrument with improved firing mechanism
US5820009 *Feb 20, 1996Oct 13, 1998Richard-Allan Medical Industries, Inc.Articulated surgical instrument with improved jaw closure mechanism
US5878938 *Aug 11, 1997Mar 9, 1999Ethicon Endo-Surgery, Inc.Surgical stapler with improved locking mechanism
US5893506 *Sep 30, 1996Apr 13, 1999United States Surgical CorporationSurgical stapler with anvil sensor and lockout
US5901895 *Oct 4, 1996May 11, 1999United States Surgical CorporationArticulating apparatus for applying surgical fasteners to body tissue
US6010054 *Dec 7, 1998Jan 4, 2000Imagyn Medical TechnologiesLinear stapling instrument with improved staple cartridge
US6032849 *Jul 20, 1998Mar 7, 2000United States SurgicalSurgical stapler
US6109500 *Oct 3, 1997Aug 29, 2000United States Surgical CorporationLockout mechanism for a surgical stapler
US6241139 *Apr 28, 2000Jun 5, 2001Keith L. MillimanSurgical stapling apparatus
US6439446 *Dec 1, 2000Aug 27, 2002Stephen J. PerrySafety lockout for actuator shaft
US7044352 *May 20, 2003May 16, 2006Ethicon Endo-Surgery, Inc.Surgical stapling instrument having a single lockout mechanism for prevention of firing
US7044353 *Dec 14, 2004May 16, 2006United States Surgical CorporationSurgical stapler
US20040232201 *Oct 4, 2002Nov 25, 2004Thomas WenchellSurgical stapling device
US20050184123 *Feb 17, 2005Aug 25, 2005Tyco Healthcare Group, LpSurgical stapling apparatus with locking mechanism
US20050184125 *Feb 17, 2005Aug 25, 2005Tyco Healthcare Group, LpSurgical stapling apparatus with locking mechanism
USRE34519 *Dec 31, 1991Jan 25, 1994Ethicon, Inc.Surgical stapler cartridge lockout device
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7798385Sep 18, 2007Sep 21, 2010The Invention Science Fund I, LlcSurgical stapling instrument with chemical sealant
US7810691Aug 23, 2007Oct 12, 2010The Invention Science Fund I, LlcGentle touch surgical stapler
US7823761Aug 17, 2007Nov 2, 2010The Invention Science Fund I, LlcManeuverable surgical stapler
US7832611May 16, 2007Nov 16, 2010The Invention Science Fund I, LlcSteerable surgical stapler
US7922064Sep 28, 2007Apr 12, 2011The Invention Science Fund, I, LLCSurgical fastening device with cutter
US7931182Jul 27, 2010Apr 26, 2011The Invention Science Fund I, LlcSteerable surgical stapler
US7975894Aug 31, 2007Jul 12, 2011The Invention Science Fund I, LlcSensing surgical fastener
US8157147Jul 27, 2010Apr 17, 2012The Invention Science Fund I, LlcSurgical stapling instrument with chemical sealant
US8172120Jul 27, 2010May 8, 2012The Invention Science Fund I, LlcManeuverable surgical stapler
US8485411Jul 27, 2010Jul 16, 2013The Invention Science Fund I, LlcGentle touch surgical stapler
US8608043Oct 6, 2006Dec 17, 2013Covidien LpSurgical instrument having a multi-layered drive beam
US8794497Dec 18, 2012Aug 5, 2014Ethicon Endo-Surgery, Inc.Surgical stapling head assembly with firing lockout for a surgical stapler
US8931682May 27, 2011Jan 13, 2015Ethicon Endo-Surgery, Inc.Robotically-controlled shaft based rotary drive systems for surgical instruments
US8973804Mar 18, 2014Mar 10, 2015Ethicon Endo-Surgery, Inc.Cartridge assembly having a buttressing member
US8978954Apr 29, 2011Mar 17, 2015Ethicon Endo-Surgery, Inc.Staple cartridge comprising an adjustable distal portion
US8991677May 21, 2014Mar 31, 2015Ethicon Endo-Surgery, Inc.Detachable motor powered surgical instrument
US8998058May 20, 2014Apr 7, 2015Ethicon Endo-Surgery, Inc.Detachable motor powered surgical instrument
US9028494Jun 28, 2012May 12, 2015Ethicon Endo-Surgery, Inc.Interchangeable end effector coupling arrangement
US9033204Jul 13, 2011May 19, 2015Ethicon Endo-Surgery, Inc.Circular stapling devices with tissue-puncturing anvil features
US9044230Feb 13, 2012Jun 2, 2015Ethicon Endo-Surgery, Inc.Surgical cutting and fastening instrument with apparatus for determining cartridge and firing motion status
US9050084Sep 23, 2011Jun 9, 2015Ethicon Endo-Surgery, Inc.Staple cartridge including collapsible deck arrangement
US9055941Sep 23, 2011Jun 16, 2015Ethicon Endo-Surgery, Inc.Staple cartridge including collapsible deck
US9060770May 27, 2011Jun 23, 2015Ethicon Endo-Surgery, Inc.Robotically-driven surgical instrument with E-beam driver
US9072515Jun 25, 2014Jul 7, 2015Ethicon Endo-Surgery, Inc.Surgical stapling apparatus
US9072535May 27, 2011Jul 7, 2015Ethicon Endo-Surgery, Inc.Surgical stapling instruments with rotatable staple deployment arrangements
US9072536Jun 28, 2012Jul 7, 2015Ethicon Endo-Surgery, Inc.Differential locking arrangements for rotary powered surgical instruments
US9084601Mar 15, 2013Jul 21, 2015Ethicon Endo-Surgery, Inc.Detachable motor powered surgical instrument
US9095339May 19, 2014Aug 4, 2015Ethicon Endo-Surgery, Inc.Detachable motor powered surgical instrument
US9101358Jun 15, 2012Aug 11, 2015Ethicon Endo-Surgery, Inc.Articulatable surgical instrument comprising a firing drive
US9101385Jun 28, 2012Aug 11, 2015Ethicon Endo-Surgery, Inc.Electrode connections for rotary driven surgical tools
US9113874Jun 24, 2014Aug 25, 2015Ethicon Endo-Surgery, Inc.Surgical instrument system
US9113884Jul 13, 2011Aug 25, 2015Ethicon Endo-Surgery, Inc.Modular surgical tool systems
US9119657Jun 28, 2012Sep 1, 2015Ethicon Endo-Surgery, Inc.Rotary actuatable closure arrangement for surgical end effector
US9125662Jun 28, 2012Sep 8, 2015Ethicon Endo-Surgery, Inc.Multi-axis articulating and rotating surgical tools
US9138225Feb 26, 2013Sep 22, 2015Ethicon Endo-Surgery, Inc.Surgical stapling instrument with an articulatable end effector
US9179911May 23, 2014Nov 10, 2015Ethicon Endo-Surgery, Inc.End effector for use with a surgical fastening instrument
US9186143Jun 25, 2014Nov 17, 2015Ethicon Endo-Surgery, Inc.Robotically-controlled shaft based rotary drive systems for surgical instruments
US9198662Jun 26, 2012Dec 1, 2015Ethicon Endo-Surgery, Inc.Tissue thickness compensator having improved visibility
US9204878Aug 14, 2014Dec 8, 2015Ethicon Endo-Surgery, Inc.Surgical stapling apparatus with interlockable firing system
US9204879Jun 28, 2012Dec 8, 2015Ethicon Endo-Surgery, Inc.Flexible drive member
US9204880Mar 28, 2012Dec 8, 2015Ethicon Endo-Surgery, Inc.Tissue thickness compensator comprising capsules defining a low pressure environment
US9211120Mar 28, 2012Dec 15, 2015Ethicon Endo-Surgery, Inc.Tissue thickness compensator comprising a plurality of medicaments
US9211121Jan 13, 2015Dec 15, 2015Ethicon Endo-Surgery, Inc.Surgical stapling apparatus
US9211122Jul 13, 2011Dec 15, 2015Ethicon Endo-Surgery, Inc.Surgical access devices with anvil introduction and specimen retrieval structures
US9216019Sep 23, 2011Dec 22, 2015Ethicon Endo-Surgery, Inc.Surgical stapler with stationary staple drivers
US9220500Mar 28, 2012Dec 29, 2015Ethicon Endo-Surgery, Inc.Tissue thickness compensator comprising structure to produce a resilient load
US9220501Mar 28, 2012Dec 29, 2015Ethicon Endo-Surgery, Inc.Tissue thickness compensators
US9226751Jun 28, 2012Jan 5, 2016Ethicon Endo-Surgery, Inc.Surgical instrument system including replaceable end effectors
US9232941Mar 28, 2012Jan 12, 2016Ethicon Endo-Surgery, Inc.Tissue thickness compensator comprising a reservoir
US9232945Jul 7, 2014Jan 12, 2016Ethicon Endo-Surgery, Inc.Surgical stapling head assembly with firing lockout for a surgical stapler
US9241714Mar 28, 2012Jan 26, 2016Ethicon Endo-Surgery, Inc.Tissue thickness compensator and method for making the same
US9271799Jun 25, 2014Mar 1, 2016Ethicon Endo-Surgery, LlcRobotic surgical system with removable motor housing
US9272406Feb 8, 2013Mar 1, 2016Ethicon Endo-Surgery, LlcFastener cartridge comprising a cutting member for releasing a tissue thickness compensator
US9277919Mar 28, 2012Mar 8, 2016Ethicon Endo-Surgery, LlcTissue thickness compensator comprising fibers to produce a resilient load
US9282962Feb 8, 2013Mar 15, 2016Ethicon Endo-Surgery, LlcAdhesive film laminate
US9283054Aug 23, 2013Mar 15, 2016Ethicon Endo-Surgery, LlcInteractive displays
US9289206Dec 15, 2014Mar 22, 2016Ethicon Endo-Surgery, LlcLateral securement members for surgical staple cartridges
US9289256Jun 28, 2012Mar 22, 2016Ethicon Endo-Surgery, LlcSurgical end effectors having angled tissue-contacting surfaces
US9301752Mar 28, 2012Apr 5, 2016Ethicon Endo-Surgery, LlcTissue thickness compensator comprising a plurality of capsules
US9301753Mar 28, 2012Apr 5, 2016Ethicon Endo-Surgery, LlcExpandable tissue thickness compensator
US9301759Feb 9, 2012Apr 5, 2016Ethicon Endo-Surgery, LlcRobotically-controlled surgical instrument with selectively articulatable end effector
US9307965Jun 25, 2012Apr 12, 2016Ethicon Endo-Surgery, LlcTissue stapler having a thickness compensator incorporating an anti-microbial agent
US9307986Mar 1, 2013Apr 12, 2016Ethicon Endo-Surgery, LlcSurgical instrument soft stop
US9307988Oct 28, 2013Apr 12, 2016Ethicon Endo-Surgery, LlcStaple cartridges for forming staples having differing formed staple heights
US9307989Jun 26, 2012Apr 12, 2016Ethicon Endo-Surgery, LlcTissue stapler having a thickness compensator incorportating a hydrophobic agent
US9314246Jun 25, 2012Apr 19, 2016Ethicon Endo-Surgery, LlcTissue stapler having a thickness compensator incorporating an anti-inflammatory agent
US9314247Jun 26, 2012Apr 19, 2016Ethicon Endo-Surgery, LlcTissue stapler having a thickness compensator incorporating a hydrophilic agent
US9320518Jun 25, 2012Apr 26, 2016Ethicon Endo-Surgery, LlcTissue stapler having a thickness compensator incorporating an oxygen generating agent
US9320520Aug 19, 2015Apr 26, 2016Ethicon Endo-Surgery, Inc.Surgical instrument system
US9320523Mar 28, 2012Apr 26, 2016Ethicon Endo-Surgery, LlcTissue thickness compensator comprising tissue ingrowth features
US9326767Mar 1, 2013May 3, 2016Ethicon Endo-Surgery, LlcJoystick switch assemblies for surgical instruments
US9326768Mar 12, 2013May 3, 2016Ethicon Endo-Surgery, LlcStaple cartridges for forming staples having differing formed staple heights
US9326769Mar 6, 2013May 3, 2016Ethicon Endo-Surgery, LlcSurgical instrument
US9326770Mar 6, 2013May 3, 2016Ethicon Endo-Surgery, LlcSurgical instrument
US9332974Mar 28, 2012May 10, 2016Ethicon Endo-Surgery, LlcLayered tissue thickness compensator
US9332984Mar 27, 2013May 10, 2016Ethicon Endo-Surgery, LlcFastener cartridge assemblies
US9332987Mar 14, 2013May 10, 2016Ethicon Endo-Surgery, LlcControl arrangements for a drive member of a surgical instrument
US9345477Jun 25, 2012May 24, 2016Ethicon Endo-Surgery, LlcTissue stapler having a thickness compensator comprising incorporating a hemostatic agent
US9345481Mar 13, 2013May 24, 2016Ethicon Endo-Surgery, LlcStaple cartridge tissue thickness sensor system
US9351726Mar 14, 2013May 31, 2016Ethicon Endo-Surgery, LlcArticulation control system for articulatable surgical instruments
US9351727Mar 14, 2013May 31, 2016Ethicon Endo-Surgery, LlcDrive train control arrangements for modular surgical instruments
US9351730Mar 28, 2012May 31, 2016Ethicon Endo-Surgery, LlcTissue thickness compensator comprising channels
US9358003Mar 1, 2013Jun 7, 2016Ethicon Endo-Surgery, LlcElectromechanical surgical device with signal relay arrangement
US9358005Jun 22, 2015Jun 7, 2016Ethicon Endo-Surgery, LlcEnd effector layer including holding features
US9364223May 22, 2013Jun 14, 2016Covidien LpSurgical instrument having a multi-layered drive beam
US9364230Jun 28, 2012Jun 14, 2016Ethicon Endo-Surgery, LlcSurgical stapling instruments with rotary joint assemblies
US9364233Mar 28, 2012Jun 14, 2016Ethicon Endo-Surgery, LlcTissue thickness compensators for circular surgical staplers
US9370358Oct 19, 2012Jun 21, 2016Ethicon Endo-Surgery, LlcMotor-driven surgical cutting and fastening instrument with tactile position feedback
US9370364Mar 5, 2013Jun 21, 2016Ethicon Endo-Surgery, LlcPowered surgical cutting and stapling apparatus with manually retractable firing system
US9386984Feb 8, 2013Jul 12, 2016Ethicon Endo-Surgery, LlcStaple cartridge comprising a releasable cover
US9386988Mar 28, 2012Jul 12, 2016Ethicon End-Surgery, LLCRetainer assembly including a tissue thickness compensator
US9393015May 10, 2013Jul 19, 2016Ethicon Endo-Surgery, LlcMotor driven surgical fastener device with cutting member reversing mechanism
US9398911Mar 1, 2013Jul 26, 2016Ethicon Endo-Surgery, LlcRotary powered surgical instruments with multiple degrees of freedom
US9408604Feb 28, 2014Aug 9, 2016Ethicon Endo-Surgery, LlcSurgical instrument comprising a firing system including a compliant portion
US9408606Jun 28, 2012Aug 9, 2016Ethicon Endo-Surgery, LlcRobotically powered surgical device with manually-actuatable reversing system
US9414838Mar 28, 2012Aug 16, 2016Ethicon Endo-Surgery, LlcTissue thickness compensator comprised of a plurality of materials
US9433419Mar 28, 2012Sep 6, 2016Ethicon Endo-Surgery, Inc.Tissue thickness compensator comprising a plurality of layers
US9439649Dec 12, 2012Sep 13, 2016Ethicon Endo-Surgery, LlcSurgical instrument having force feedback capabilities
US9445809May 24, 2013Sep 20, 2016Deep Science, LlcGentle touch surgical stapler
US9445813Aug 23, 2013Sep 20, 2016Ethicon Endo-Surgery, LlcClosure indicator systems for surgical instruments
US9451958Aug 5, 2013Sep 27, 2016Ethicon Endo-Surgery, LlcSurgical instrument with firing actuator lockout
US9468438Mar 1, 2013Oct 18, 2016Eticon Endo-Surgery, LLCSensor straightened end effector during removal through trocar
US9480476Mar 28, 2012Nov 1, 2016Ethicon Endo-Surgery, LlcTissue thickness compensator comprising resilient members
US9486214May 20, 2013Nov 8, 2016Ethicon Endo-Surgery, LlcMotor driven surgical fastener device with switching system configured to prevent firing initiation until activated
US9492167Mar 14, 2013Nov 15, 2016Ethicon Endo-Surgery, LlcArticulatable surgical device with rotary driven cutting member
US9498219Jun 30, 2015Nov 22, 2016Ethicon Endo-Surgery, LlcDetachable motor powered surgical instrument
US9510828Aug 23, 2013Dec 6, 2016Ethicon Endo-Surgery, LlcConductor arrangements for electrically powered surgical instruments with rotatable end effectors
US9510830Oct 23, 2014Dec 6, 2016Ethicon Endo-Surgery, LlcStaple cartridge
US9517063Mar 28, 2012Dec 13, 2016Ethicon Endo-Surgery, LlcMovable member for use with a tissue thickness compensator
US9517068Aug 5, 2013Dec 13, 2016Ethicon Endo-Surgery, LlcSurgical instrument with automatically-returned firing member
US9522029Mar 12, 2013Dec 20, 2016Ethicon Endo-Surgery, LlcMotorized surgical cutting and fastening instrument having handle based power source
US9554794Mar 1, 2013Jan 31, 2017Ethicon Endo-Surgery, LlcMultiple processor motor control for modular surgical instruments
US9561032Aug 13, 2013Feb 7, 2017Ethicon Endo-Surgery, LlcStaple cartridge comprising a staple driver arrangement
US9561038Jun 28, 2012Feb 7, 2017Ethicon Endo-Surgery, LlcInterchangeable clip applier
US9566061Feb 8, 2013Feb 14, 2017Ethicon Endo-Surgery, LlcFastener cartridge comprising a releasably attached tissue thickness compensator
US9572574Jun 22, 2015Feb 21, 2017Ethicon Endo-Surgery, LlcTissue thickness compensators comprising therapeutic agents
US9572577Mar 27, 2013Feb 21, 2017Ethicon Endo-Surgery, LlcFastener cartridge comprising a tissue thickness compensator including openings therein
US9574644May 30, 2013Feb 21, 2017Ethicon Endo-Surgery, LlcPower module for use with a surgical instrument
US9585657Feb 8, 2013Mar 7, 2017Ethicon Endo-Surgery, LlcActuator for releasing a layer of material from a surgical end effector
US9585658Apr 7, 2016Mar 7, 2017Ethicon Endo-Surgery, LlcStapling systems
US9585663Mar 8, 2016Mar 7, 2017Ethicon Endo-Surgery, LlcSurgical stapling instrument configured to apply a compressive pressure to tissue
US9592050Feb 8, 2013Mar 14, 2017Ethicon Endo-Surgery, LlcEnd effector comprising a distal tissue abutment member
US9592052Mar 12, 2014Mar 14, 2017Ethicon Endo-Surgery, LlcStapling assembly for forming different formed staple heights
US9592053May 22, 2014Mar 14, 2017Ethicon Endo-Surgery, LlcStaple cartridge comprising multiple regions
US9592054Nov 4, 2015Mar 14, 2017Ethicon Endo-Surgery, LlcSurgical stapler with stationary staple drivers
US9597075Jun 9, 2014Mar 21, 2017Ethicon Endo-Surgery, Inc.Tissue acquisition arrangements and methods for surgical stapling devices
US9603595Feb 28, 2014Mar 28, 2017Ethicon Endo-Surgery, LlcSurgical instrument comprising an adjustable system configured to accommodate different jaw heights
US9603598Aug 30, 2013Mar 28, 2017Ethicon Endo-Surgery, LlcSurgical stapling device with a curved end effector
US9615826Feb 8, 2013Apr 11, 2017Ethicon Endo-Surgery, LlcMultiple thickness implantable layers for surgical stapling devices
US9629623Mar 14, 2013Apr 25, 2017Ethicon Endo-Surgery, LlcDrive system lockout arrangements for modular surgical instruments
US9629629Mar 7, 2014Apr 25, 2017Ethicon Endo-Surgey, LLCControl systems for surgical instruments
US9629814Mar 20, 2014Apr 25, 2017Ethicon Endo-Surgery, LlcTissue thickness compensator configured to redistribute compressive forces
US9649110Apr 9, 2014May 16, 2017Ethicon LlcSurgical instrument comprising a closing drive and a firing drive operated from the same rotatable output
US9649111Jun 28, 2012May 16, 2017Ethicon Endo-Surgery, LlcReplaceable clip cartridge for a clip applier
US9655614Mar 11, 2013May 23, 2017Ethicon Endo-Surgery, LlcRobotically-controlled motorized surgical instrument with an end effector
US9655624Aug 30, 2013May 23, 2017Ethicon LlcSurgical stapling device with a curved end effector
US9662110Sep 15, 2015May 30, 2017Ethicon Endo-Surgery, LlcSurgical stapling instrument with an articulatable end effector
US9675355Aug 30, 2013Jun 13, 2017Ethicon LlcSurgical stapling device with a curved end effector
US9687230Mar 14, 2013Jun 27, 2017Ethicon LlcArticulatable surgical instrument comprising a firing drive
US9687237Jun 8, 2015Jun 27, 2017Ethicon Endo-Surgery, LlcStaple cartridge including collapsible deck arrangement
US9690362Mar 26, 2014Jun 27, 2017Ethicon LlcSurgical instrument control circuit having a safety processor
US9693777Feb 24, 2014Jul 4, 2017Ethicon LlcImplantable layers comprising a pressed region
US9700309Mar 1, 2013Jul 11, 2017Ethicon LlcArticulatable surgical instruments with conductive pathways for signal communication
US9700310Aug 23, 2013Jul 11, 2017Ethicon LlcFiring member retraction devices for powered surgical instruments
US9700317Feb 8, 2013Jul 11, 2017Ethicon Endo-Surgery, LlcFastener cartridge comprising a releasable tissue thickness compensator
US9700321May 28, 2014Jul 11, 2017Ethicon LlcSurgical stapling device having supports for a flexible drive mechanism
US9706991Feb 19, 2014Jul 18, 2017Ethicon Endo-Surgery, Inc.Staple cartridge comprising staples including a lateral base
US9707005Feb 14, 2014Jul 18, 2017Ethicon LlcLockout mechanisms for surgical devices
US20080283571 *Aug 31, 2007Nov 20, 2008Searete Llc, A Limited Liability Corporation Of The State Of DelawareSensing surgical fastener
US20080283572 *Sep 18, 2007Nov 20, 2008Searete Llc, A Limited Liability Corporation Of The State Of DelawareSurgical stapling instrument with chemical sealant
US20080283576 *Sep 28, 2007Nov 20, 2008Searete Llc. A Limited Liability Corporation Of The State Of DelawareSurgical fastening device with cutter
US20100166752 *Dec 14, 2009Jul 1, 2010Janssen Alzheimer ImmunotherapyAnti A Beta Antibody Formulation
US20100301094 *Jul 27, 2010Dec 2, 2010Boyden Edward SSurgical stapling instrument with chemical sealant
WO2008045383A2 *Oct 4, 2007Apr 17, 2008Tyco Healthcare Group LpSurgical instrument having a multi-layered drive beam
WO2008045383A3 *Oct 4, 2007Aug 14, 2008Tyco HealthcareSurgical instrument having a multi-layered drive beam
Classifications
U.S. Classification128/898
International ClassificationA61B17/072, A61B17/00, A61B19/00, A61B17/04
Cooperative ClassificationA61B2017/00473, A61B17/07207, A61B2017/07214, A61B2017/320052, A61B2017/00477
European ClassificationA61B17/072B
Legal Events
DateCodeEventDescription
Apr 24, 2006ASAssignment
Owner name: TYCO HEALTHCARE GROUP LP, CONNECTICUT
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MARCZYK, STANISLAW;REEL/FRAME:017824/0661
Effective date: 20050421