CN102940512B - Surgical fasteners bringing device - Google Patents

Abstract

It relates to a kind of surgical fasteners bringing device, for securing member is applied to soma.This device includes defining the cartridge half-section of elongated passageway component, anvil block half portion and clamp operation bar.Described cartridge half-section accommodates nail bin and emitting module releasedly.Described clamp operation bar includes that the protuberance on sidewall, described protuberance can be contained in the bifurcated recess in the sidewall being formed at described cartridge half-section, so that clamp operation bar is releasably held in released position and clamped position.Described device includes disposable emitting module and SULU.

Description

Surgical fasteners bringing device

This application claims the U.S. Provisional Patent Application of the Serial No. 61/494,993 submitted on June 9th, 2011 Priority, entire contents is incorporated herein by reference.

Technical field

It relates to surgical fasteners bringing device, particularly relate to have reusable parts and disposable unit Surgical fasteners bringing device.

Background technology

Surgical fasteners bringing device is to it is well known in the art that first captured by tissue or be clamped in relative pincers Between clamping structure, then by surgical fasteners connecting tissue.In some such device, it is provided with for cutting by tightly The cutter of the tissue that firmware links.Securing member is usually the form of surgical stapling nail, but can also utilize other surgical fastener Part, such as clip or two-piece type polymer surgical fasteners.

Surgical fasteners bringing device generally includes two elongated beam member, and said two elongated beam member is for betwixt Capture or grip tissue.Generally, a beam carrying disposable staple cartridge assembly, the receiving of described disposable staple cartridge assembly is arranged as Multiple anastomosis staples that at least two is horizontally-arranged, and another beam includes that anvil block, described anvil block define for from nail bin group The surface of anastomosis staple nail lower limb is shaped when part is displaced anastomosis staple.If using two-piece type securing member, then include the beam of anvil block The counterpart of carrying two-piece type securing member, such as receiving member.Generally, anastomosis staple forming process can be transported by one or more longitudinal directions Dynamic cam member and the impact of the interphase interaction of a series of single anastomosis staple propeller.When cam member is along being longitudinally travelled During by nail bin carrier bar component, after each single propeller component is biased upward into the anastomosis staple being supported in nail bin groupware Across portion, to eject anastomosis staple from nail bin in order.The cutter advanced together with cam member between staple line can be arranged on Tool, respectively lines up the tissue between shape anastomosis staple with cutting.Disclose this type of apparatus one shows for No. 7,631,794 United States Patent (USP) Example, the full content of this patent is incorporated herein by reference.

Owing to there is the danger with the inappropriate association of sterilizing, surgical fasteners bringing device is discardable after typically using 's.Apply to operate so that single patient to perform repeatedly securing member although nail bin groupware can be changed, but anastomosis staple bringing device Generally it is dropped after patient being completed operation technique.This can increase with the rear requirement i.e. abandoned and associates with operation technique Cost.Although having been developed over reusable securing member bringing device, but such device is understood overcomplicated and confirms It is difficult to sterilizing.

This area needs such a securing member bringing device: include reusable parts, and structure is the most multiple Miscellaneous, and be configured to facilitate in operation technique use after carry out suitable sterilizing.

Summary of the invention

It relates to a kind of surgical fasteners bringing device including anvil block half portion and cartridge half-section, described anvil block Half portion includes distal anvil portion and proximal handle portion, and described cartridge half-section defines elongated passageway component.Described elongated logical Road component has the extremity being sized to accommodate nail bin releasedly and is configured to support the proximal portion of emitting module.Described Cartridge half-section also includes the sidewall limiting bifurcated recess, and described bifurcated recess has and separated by protruding recess barrier portion First recess portions and the second recess portions.Clamp operation bar is filled to cartridge half-section, and has extremity and include hands The proximal portion of shank.Described clamp operation bar is operably associated with anvil block half portion and cartridge half-section, it is possible to from unclamping Position moves to clamped position, thus the anvil portion in described anvil block half portion is dressed up next-door neighbour's described nail bin releasedly.Described folder Tight action bars also includes the sidewall with protuberance, so that clamping in this protuberance can be positioned in the first recess portions of bifurcated recess Action bars is releasably held in released position, and described protuberance can be positioned in the second recess portions of bifurcated recess, So that clamp operation bar is releasably held in clamped position.

In one embodiment, described clamp operation bar is filled to cartridge half-section releasedly.

Described device also includes emitting module, and it is configured to be contained in releasedly in the proximal portion of cartridge half-section, And described emitting module includes launching action bars and being fixedly attached to launch the cam lever on action bars.Described emitting module is also Can include that static housing, described static housing are configured to be releasably supported in the proximal portion of cartridge half-section.

In one embodiment, described static housing includes that U-frame frame, described U-frame frame include diapire and pair of sidewalls, Wherein each having the near-end containing emitting module protuberance in sidewall, described emitting module protuberance is positioned as releasedly It is contained in the groove in the near-end being formed at elongated passageway component, so that static housing is releasably held in elongated passageway structure In the proximal portion of part.Described emitting module can also include that cutter actuator lever, described cutter actuator lever are configured to and are supported on Cutter in single use load units engages.

In one embodiment, described protuberance includes smooth sidewall, when clamp operation bar is in clamped position, described Sidewall adjoins with protruding recess barrier portion.Described projection is deformable, and when clamp operation bar is at released position and folder Between tight position during motion, described protuberance can be through protruding recess barrier portion.Described clamp operation bar can be by pivotally Being filled to cartridge half-section, wherein, described clamp operation bar is pivoted to make the protuberance the first recess portions fortune from bifurcated recess Second recess portions of the recess barrier portion entrance bifurcated recess that influencing meridian is excessively protruding.

In one embodiment, described cartridge half-section includes that pair of pivot component, each pivot member are respectively provided with flat Smooth surface.In one embodiment, described flat surfaces is positioned at the proximal face of pivot member.

In one embodiment, described clamp operation bar includes a pair C-shaped groove, and the width of described C-shaped groove is less than pivot The diameter of shaft component so that pivot member needs to slide in C-shaped groove along flat surfaces, so that clamp operation bar is connected to nail Capacity is received in half portion.In one embodiment, described clamp operation bar becomes the first angle relative to cartridge half-section so that pressing from both sides Tight action bars is connected in cartridge half-section, and becomes the second less angle relative to the cartridge half-section being in released position Degree.

In one embodiment, cartridge half-section has pair of U-shaped groove to accommodate the cross-brace structure in anvil block half portion Part.The U-shaped groove of cartridge half-section and pivot member may be located at the distally of bifurcated recess.

Accompanying drawing explanation

To describe each embodiment of the surgical fasteners bringing device of the disclosure with reference to the accompanying drawings at this, wherein now:

Fig. 1 is that an embodiment of the surgical fasteners bringing device being in clamped position of the disclosure is when distal end thereof Side isometric view；

Figure 1A is to be in the side perspective when surgical fasteners bringing device shown in Fig. 1 of clamped position is proximally observed Figure；

Fig. 2 is the side isometric view of the surgical fasteners bringing device shown in Fig. 1 in an open position；

Fig. 2 A is cartridge half-section and clamp operation bar during the assembling of clamp operation bar and cartridge half-section The side view of a part；

Fig. 2 B is the side isometric view of the surgical fasteners bringing device shown in Fig. 1 being in Guan Bi, released position；

Fig. 2 C is the zoomed-in view that the details shown in Fig. 2 represents region；

Fig. 2 D is the sectional view of the hatching 2D-2D intercepting along Figure 1A；

Fig. 3 is the side isometric view of the parts decomposition of the surgical fasteners bringing device shown in Fig. 1；

Fig. 3 A is the bottom side view cutaway drawing of the clamp operation bar of the surgical fasteners bringing device shown in Fig. 1；

Fig. 4 is the side isometric view of the cartridge half-section of surgical fasteners bringing device, and wherein single use loads Unit (" SULU ") and emitting module are supported in cartridge half-section；

Fig. 5 is the zoomed-in view that the details shown in Fig. 4 represents region；

Fig. 6 is SULU and emitting module is supported on the bowing of cartridge half-section of surgical fasteners bringing device therein Parallax stereogram；

Fig. 7 is the zoomed-in view that the details shown in Fig. 6 represents region；

Fig. 8 is the front end top perspective view of the emitting module of the surgical fasteners bringing device shown in Fig. 3；

Fig. 9 is the zoomed-in view that the details shown in Fig. 8 represents region；

Fig. 9 A is the top perspective view of the channel component that emitting module is mounted in it releasedly；

Fig. 9 B is the zoomed-in view that the details shown in Fig. 9 A represents region；

Fig. 9 C is the top perspective view of the central part of channel component；

Figure 10 is the rear end top perspective view of the emitting module shown in Fig. 8；

Figure 11 is the zoomed-in view that the details shown in Figure 10 represents region；

Figure 12 is the side isometric view of the parts decomposition of the emitting module shown in Figure 10；

Figure 12 A is the cam lever of the emitting module shown in Figure 12 axonometric chart when observing from below；

Figure 12 B be the emitting module shown in Figure 12 launch action bars axonometric chart when observing from below；

Figure 13 is the side isometric view of the SULU of the surgical fasteners bringing device shown in Fig. 1；

Figure 14 is the zoomed-in view that the details shown in Figure 13 represents region；

Figure 15 is the front perspective view of the SULU shown in Figure 13；

Figure 16 is the zoomed-in view that the details shown in Figure 15 represents region；

Figure 17 is the side isometric view of the parts decomposition of the SULU shown in Figure 15；

Figure 18 is the side view cutaway drawing of the surgical fasteners bringing device shown in Fig. 1 in an open position；

Figure 19 is the zoomed-in view that the details shown in Figure 18 represents region；

Figure 20 is the zoomed-in view that the details shown in Figure 18 represents region；

Figure 21 is the axonometric chart of the near-end of the surgical fasteners bringing device shown in Figure 18 in an open position；

Figure 22 is that the cartridge half-section of the surgical fasteners bringing device shown in Fig. 1 and clamp operation bar are in clamp operation Bar is in side view during released position；

Figure 23 is the zoomed-in view that the details shown in Figure 22 represents region；

Figure 24 is the side isometric view of the surgical fasteners bringing device shown in Fig. 1 being in clamped position；

Figure 25 is the side view cutaway drawing of the surgical fasteners bringing device shown in Figure 24 being in clamped position；

Figure 26 is the zoomed-in view that the details shown in Figure 25 represents region；

Figure 27 is that the cartridge half-section of the surgical fasteners bringing device shown in Fig. 1 and clamp operation bar are in clamp operation Bar is in side view during clamped position；

Figure 27 A is the zoomed-in view that the details shown in Figure 27 represents region；

Figure 28 is the sectional view intercepted along the cutting line 28-28 of Figure 26；

Figure 29 is that the operation shown in Fig. 1 is tight when the emitting module whole actuation stroke of motion is to eject securing member from device The top view of firmware bringing device；

Figure 30 is the side view cutaway drawing that emitting module is in the surgical fasteners bringing device shown in Figure 29 of actuated position；

Figure 31 is the zoomed-in view that the details shown in Figure 30 represents region；

Figure 32 is the zoomed-in view that the details shown in Figure 30 represents region；

Figure 33 be the most emitted at device and move to open position after the surgical fasteners bringing device shown in Fig. 1 Side view cutaway drawing；And

Figure 34 is the zoomed-in view that the details shown in Figure 33 represents region.

Detailed description of the invention

The embodiment of surgical fasteners bringing device according to the disclosure is described in detail with reference to the accompanying drawings, the most identical Reference represent the element of similar or identical structure.As used in this, by convention, term " nearside " refers to device One end of closer user, and term " distally " refers to one end further away from user of device.

Fig. 1 to Figure 34 shows showing of the surgical fasteners bringing device of the disclosure being generally designated as operation anastomat 10 Example embodiment.Referring in particular to Fig. 1 to Fig. 3, operation anastomat 10 includes anvil block half portion 12, cartridge half-section 14, clamping behaviour Make bar 16, single use load units or nail bin 18(hereinafter referred to as " SULU ") and emitting module 20.In one embodiment, Anvil block half portion 12, cartridge half-section 14 and clamp operation bar 16 are configured to reusable parts, and thus, employing is suitable to Sterilizing and reusable biocompatible materials structure form, such as rustless steel.Except for the difference that, SULU 18 and emitting module 20 are configured to disposably, thus, it is possible to use any applicable biocompatible materials structure with required strength characteristics Make and form, such as plastics, metal and combinations thereof.SULU 18 and emitting module 20 can be alternatively configured as integral unit, In as single unit load to cartridge half-section 14.

With reference to Fig. 3 to Fig. 7, cartridge half-section 14 defines elongated passageway component 22, and elongated passageway component 22 defines Generally U-shaped passage 24, passage 24 has extremity 24a and proximal portion 24b, and extremity 24a is sized to hold releasedly Receive SULU18, and proximal portion 24b is sized to accommodate emitting module 20 releasedly.Emitting module 20 includes static housing 26 (see also Figure 12), and static housing 26 has such near-end: and this near-end includes that flexible protuberance 28, flexible protuberance 28 extend In groove 30 in the proximal portion being formed at cartridge half-section 14, thus the near-end of emitting module 20 is contained in releasedly In proximal portion 24b of channel component 22.The far-end of emitting module 20 defines extension 64d, extension 64d and is positioned to engage shape The protuberance 65(on the inwall of channel component 22 is become to see Fig. 9 A to Fig. 9 C), thus by the far-end of emitting module 20 releasedly It is contained in channel component 22.Protuberance 65 is positioned on the top of extension 64d as shown in Figure 9 B.To beg in further detail below The structure of opinion emitting module 20.SULU 18 includes a pair distally protuberance 32(Fig. 3), the pair of distally protuberance 32 is positioned at shape Become in the otch 34 of far-end of channel component 22, thus releasedly SULU 18 is contained in the extremity of channel component 22 In 24a.During assembly, before in the extremity 24a that SULU 18 is inserted channel component 22, it is necessary to by emitting module 20 Insert in proximal portion 24b of channel component 22, as discussed below.In order to SULU 18 is positioned in channel component 22, will Protuberance 32 on SULU 18 is positioned in otch 34, simultaneously SULU 18 be positioned at above channel component 22 and with channel component 22 At an angle.Thereafter, it is possible to SULU 18 is rotated downwardly in the extremity 24a of U 24.This allows emitting module 20 The parts of driver part and SULU 18 be appropriately aligned, and, contribute to emitting module 20 and be supported on SULU in 18 Cutter 40(Figure 17) engage.The near-end of SULU 18 includes outward extending serrated face 42(Fig. 7), to contribute to grasping SULU 18 Near-end, thus remove from channel component 22 and/or change SULU 18.Before anastomat 10 moves to clamped position, saw Tooth gripping surface 42 will not fall completely within the extremity 24a of channel component 22, as discussed below.

With reference to Fig. 8 to Figure 12, emitting module 20 include static housing 26, cutter actuator lever 44, cam lever 46, guide block 48, Launch action bars 50, slide block 52 and pressing plate (pedal) 54.In one embodiment, static housing 26 includes U-frame frame 60, U-shaped Framework 60 includes diapire 62 and pair of sidewalls 64.The proximal support of each sidewall 64 flexible protuberance 28 accordingly.Protuberance 28 can Inward deflection is to (Figure 21) in the groove 30 of channel component 22, thus is filled releasedly by emitting module 20 as discussed above In proximal portion 24b of channel component 22 (Fig. 3).The far-end of each sidewall 64 define nearside step 64b, rake 64c and Distally rake (extension) 64d.As discussed above, extension 64d is positioned to engage and is formed at the interior of channel component 22 Protuberance 65(Fig. 9 B on wall) so that the far-end of emitting module 20 is maintained in channel component 22.Each sidewall 64 includes stretching out Portion 66, for being maintained slidably retained in slide block 52 in static housing 26.

Body that guide block 48 includes defining three longitudinal slit 70a-c and a pair outward extending protuberance 72.At one In embodiment, each protuberance 72 substantially cylindrical also includes tapered portion 72a(Fig. 9).Selectively, it is contemplated that other protuberances Structure.Protuberance 72 is sized to the opening 74(Figure 12 being contained in the sidewall 64 being formed at static housing 26) in, so that leading Block 48 is axially fixed in the far-end of static housing 26.Protuberance 72 allows guide block 48 to carry out to a certain degree in U-frame frame 60 Pivoting action.As will be discussed in further detail, as the response of the motion to anastomat 10 to clamped position, guide block 48 primary importances (Figure 19) being engaged by locking from the recess 49 and 51 with cutter actuator lever 44 are pivoted to and cutter actuator lever 44 The second position (Figure 26) that recess 49 and 51 separates.Torsionspring (not shown) arranges around protuberance 72 and leads to drive towards primary importance Block 48.Being each sized in slit 70a and 70c slidably receives the respective side walls 114 of cam lever 46.Equally Ground, slit 70b is sized to slidably receive cutter actuator lever 44.

Slide block 52 includes the hub portion 80 with spring finger 80a, and spring finger 80a is configured to snap fit onto and is formed at transmitting In pivot hole 82 in action bars 50.When slide block 52 is in retracted position so that activating transmitting group from the either side of anastomat 10 During part 20, launch action bars 50 and pivot around hub portion 80.Pressing plate 54 is reciprocally contained in the hole 84 being formed in slide block 52. Pressing plate 54 includes that breach formula body 54a, breach formula body 54a are configured to the near-end 102 across cutter actuator lever 44.? In one embodiment, breach formula body 54a includes oblique distal face 86.Pin 88 extends up through slide block 52 from pressing plate 54 Hole 84.Biasing member 90 is positioned between breach formula body 54a and slide block 52 around pin 88, to drive pressing plate 54 to transport downwards Dynamic away from slide block 52.At the retracted position of slide block 52, pressing plate 54 is accommodated in cutting in the diapire 22a being formed at channel component 22 In mouth 55.

Launch action bars 50 and include the first finger-like engagement member 50a and the second finger-like engagement member 50b, it is possible to optionally Engage any one finger-like engagement member, so that launching the action bars 50 either side whole transmitting stroke of motion from anastomat 10.Bow Connected in star 94(Figure 12 B) it is formed in the bottom surface launching action bars 50, for slidably receiving the pin 88 of pressing plate 54, to limit Launch the rotating range that action bars 50 can pivot around the hub portion 80 of slide block 52.Limited as it is used herein, launch stroke It is set to the transmitting action bars 50 motion (Figure 30) from fully retracted position (Figure 25) to fully advanced position.Locking groove 94a shape Become the every an end portion at bow-shaped recess 94.Locking groove 94a is constructed and is sized to accommodate the end of the pin 88 of pressing plate 54, To prevent the pivoting action launching action bars 50 around hub portion 80 during the transmitting stroke of operation anastomat 10.More specifically, When activating emitting module 20 with distad promoting slider 52 in static housing 26, the oblique distal face 86 of pressing plate 54 and passage Component 22 engages and cam moves out otch 55(Figure 20), enter locking groove 94a driving up pin 88, thus launch behaviour Prevent from launching the pivoting action of action bars 50 during making the transmitting stroke motion of bar 50.Obviously, to must be located at stop recessed for pin 88 Below groove 94a, to allow pressing plate 54 to be lifted up from otch 55, thus allow to launch action bars 50 and move whole transmitted traveling Journey.Thus, before launching action bars 50 motion transmitting stroke, it is necessary to be first pivoted to emitting module 20 by launching action bars 50 Side or opposite side.

Cutter actuator lever 44 includes the near-end with stage portion 100, and stage portion 100 includes having the nearside the of the first height One step 102 and the second step 104 with the second height, the second height is more than the first height.The far-end of actuator lever 44 includes Upwarp hook portion 106 and upper and lower recess 49 and 51.Finger 108 between first step 102 and second step 104 from cutter actuator lever 44 is protruding upward.As shown in figure 20, in finger 108 is slidably received in the groove 110 of the downside being formed at slide block 52.When In static housing 26 during distad promoting slider 52, move in groove 110 in finger 108, so that slide block 52 is relative to cutter Actuator lever 44 is moved, until wall 112(Figure 32 of finger 108 with the near-end limiting groove 110) engage.When finger 108 and wall 112 During joint, the further distal motion of slide block 52 also will realize the distal motion of cutter actuator lever 44.As below will aobvious and Being clear to, this configuration allows to eject from SULU 18 anastomosis staple before cutting tissue.

With reference to Figure 12 and Figure 12 A, cam lever 46 includes pair of sidewalls 114 and diapire 116.The near-end of each sidewall 114 114a includes the wall portion 118 of projection.The wall portion 118 of each projection is configured to be fixedly received in the downside being formed at slide block 52 Slit (not shown) in so that the near-end of cam lever 46 is fixedly attached to slide block 52.Selectively, can activate around cutter The near-end molding slide block 52 of bar 44.The far-end of each sidewall 114 includes inclined cam surface 114b.Diapire 116 distad defines The elongated slot 123(Figure 12 A extended) and longitudinal slit 121 of proximad extension, elongated slot 123 is from the far-end of cam lever 46 Most of length along cam lever 46 extends.Slit 121 is positioned to, when slide block 52 is in retracted position, contribute to making pressing plate 54 Otch 55(through channel component 22 sees Figure 20).

The sidewall 114 of cam lever 46 is slidably located in slit 70a and 70c of guide block 48, and cutter actuator lever 44 are slidably located in longitudinal slit 70b of guide block 48.In emitting module 20 is supported on channel component 22 and send out Penetrating action bars 50 when being pivoted to the side of static housing 26 and be pushed distally, slide block 52 is distad transported in static housing 26 Dynamic.Along with slide block 52 starts distal motion, the taper surface 86 of pressing plate 54 and the far lateral side of the channel component 22 limiting otch 55 Engage, to drive pressing plate 54 to move upward out otch 55, through the slit 121 of cam lever 46, and move to emitting module 20 Static housing 26 inner surface on (Figure 20).At this moment, the pin 88 of pressing plate 54 moves in locking groove 94a, to prevent from launching The further pivoting action of action bars 50.If launching action bars 50 not to be pivoted to so that pin 88 is positioned at locking groove 94a Below such position, then can prevent pressing plate 54 from moving upward out otch 55, and will prevent from launching action bars 50 and move transmitting Stroke.Along with launching action bars 50 distal motion, move in groove 110 in finger 108, so that cutter actuator lever 44 is at cam Bar 46 keeps static when distally advancing.When finger 108 engages with the proximal wall 112 limiting groove 110, cutter actuator lever 44 Distal motion together with slide block 52 and cam lever 46.As discussed below, when cam lever 46 and cutter actuator lever 44 are being sent out When penetrating distal motion in the static housing 26 of assembly 20 and channel component 22, the inclined cam surface 114b motion of cam lever 46 is logical Cross SULU18 to eject securing member from SULU 18.Length simultaneously, although pre-set delay is equal to groove 110(Figure 20), but Cutter actuator lever 44 drives blade 40 by SULU 18 with incised tissue.

No. 7,631,794 United States Patent (USP) (" ' 794 patent ") discloses the emitting module including similar above-mentioned emitting module Surgical fasteners bringing device.The full content of ' 794 patents is incorporated herein by reference.

Figure 13 to Figure 17 shows SULU 18.SULU 18 includes that body 120, multiple anastomosis staple propeller 122(only illustrate One), bottom 124, there is the sharp-pointed forward position of inclination or the cutter 40 of blade 40a, multiple anastomosis staple 126(only illustrate one) and The safety interlocking 128 being pivotally mounted on.The near-end of body 120 includes flexible finger 120a, and flexible finger 120a slightly protruding surpasses Cross the outer wall limiting body 120.Finger 120a and channel component 22(Figure 14) inwall be frictionally engaged, in order to can at SULU 18 When being positioned in channel component 22 to release, the near-end of SULU 18 is maintained in channel component 22.In the art, it is known that Body 120 has multiple rows of anastomosis staple and keeps slit 130, such as 4 rows, 6 rows etc., and linear flute profile tool trajectory 132 cloth placed in the middle Put in body 120.Operation anastomat 10 can be sized to accommodate or adapt to have different anastomosis staple row length (such as, 60mm, 80mm and 100mm) SULU.Cutter 40 includes hook portion 40b that has a downwarp, and hook portion 40b that has a downwarp is positioned to when SULU 18 positions Time in channel component 22, with cutter actuator lever 44 upwarp hook portion 106(Figure 12) engage.

In the illustrated embodiment, body 120 includes that two rows being formed at the either side of linear flute profile tool trajectory 132 hand over Wrong groove 130.The staggered groove 130 of each row extends beyond the far-end of tool trajectory 132, is beneficial to anastomosis staple stroke remote at blade 40 Shape beyond end.

Anastomosis staple propeller 122 may be constructed such that and extends in one or more slit 130.In one embodiment, Single propeller associates with each slit 130.Selectively, as shown in figure 17, each propeller 122 can be configured to extend In two adjacent slots 130 and be positioned below the corresponding anastomosis staple 126 that is maintained in slit 130.In the art, Know each propeller 122 include lower cam face 122a, lower cam face 122a be positioned to on the far-end of cam lever 46 Cam surface 114b(Figure 12) in a joint so that the motion that cam lever 46 is in SULU 18 raises corresponding one in order Each corresponding propeller 122 in individual or multiple slit 130, to eject anastomosis staple from one or more slits 130.

Bottom 124 part is around the passage 125(Figure 18 being formed in staple cartridge body 120).Longitudinal ridge 134(Figure 17) it is formed at Bearing-surface is provided on the upper surface of bottom 124 and for being loaded on the tool support member 136 on the base of cutter 40.By pin, welding Or tightening technology known to other, cutter 40 can be loaded on supporting member 136.During launching stroke, along with launching action bars 50 advance by channel component 22, and cutter 40 is guided along tool trajectory 132.A pair slit 138 is limited to the side of ridge 134 And between the outer wall of staple cartridge body 120.In longitudinal ridge 134 is positioned at body 120 and be sized to be slidably received in convex Elongated slot 123(Figure 12 a of wheel bar 46) in, so that cam lever 46 can move through nail slidably around longitudinal ridge 134 Storehouse body 120, to eject anastomosis staple 126 from SULU 18.

Safety interlocking 128 is pivotally arranged on the upper proximal end of body 120, and around pivot member 150 from locking side Position (Figure 26) is pivoted to unlock orientation (Figure 34).Pivot member 150 is accommodated in the opening 154 in body 120.Biasing member (such as spring 152) is positioned between tool support member 136 and safety interlocking 128, to drive safety to close towards unblock orientation Lock 128.Safety interlocking 128 includes that nearside hook 156, nearside hook 156 are positioned to when cutter 40 is in retracted position (Figure 19), holds Receive the engagement member 158 being formed on cutter 40 so that safety interlocking 128 is maintained at locking orientation.When cutter during launching stroke Tool 40 is towards when advancing position motion, and engagement member 158 moves apart nearside hook 156, to allow safety interlocking 128 to respond spring 152 Driving and towards unlocked position pivot.It should be noted that when anvil block half portion 12 and cartridge half-section 14 are in clamping position When putting, it is therefore prevented that safety interlocking 128 is pivoted to unlocked position, because the end face 128a of safety interlocking 128 and anvil block half portion 12 Inner surface engages, to prevent the pivot of safety interlocking 128.Safety interlocking 128 defines slit 160(Figure 16), slit 160 is determined A size of slidably receive cutter 40.At the retracted position of cutter 40, the forward position 40a of cutter 40 is limited in safety interlocking In the slit 160 of 128, to prevent the unintentional engagement caused due to the forward position 40a of cutter 40 and the injury to medical worker.

Referring again to Fig. 2 to Fig. 3, anvil block half portion 12 includes proximal handle portion 12a and distal anvil portion 12b.Anvil portion 12b Including anastomosis staple variant part 198, in the art, it is known that anastomosis staple variant part 198 include multiple anastomosis staple deformation groove and Towards the end face of SULU 18 when SULU 18 is positioned in channel component 22.In the art, it is also known that anastomosis staple variant part 198 wraps Include the longitudinal slit (not shown) of central authorities, for as cutter 40(Figure 17) accommodate cutter 40 when moving through SULU 18.Anastomosis staple becomes Shape portion 198 can be integrally formed with anvil block half portion 12, or is loaded on anvil block by fastening process (such as welding) in alternative Half portion 12.A pair locating finger 170 is positioned at the near proximal ends of the anastomosis staple variant part 198 of anvil portion 12b and engages SULU Groove in 18, so that SULU 18 is appropriately aligned with anastomosis staple variant part 198.

The central part in anvil block half portion 12 includes a pair cylindrical lateral supports 172.Hold in anvil block half portion 12 and nail bin Receiving during the assembling in half portion 14, lateral supports 172 is supported on the central part 173(figure being formed at cartridge half-section 14 28) in the U-shaped groove 174 on.Lateral supports 172 is also positioned to when clamp operation bar 16 moves to clamped position, quilt It is contained in (Fig. 1) in the otch 176 on the flange part 178 at the interval being formed at clamp operation bar 16.Proximal handle portion 12a human body Engineering ground is formed, and includes thumb engagement adjacency section 180 and grip part 182.The near-end of handle portion 12a includes the finger downwardly extended Portion 184(Figure 21), finger 184 includes a pair relative teardrop shaped protuberance 186, will be discussed in further detail below.Selectively, Protuberance 186 can take various structure.

Returning to Fig. 3, cartridge half-section 14 includes that central part 173, central part 173 define the U arranged at center spacer Connected in star 174, and U-shaped groove 174 is positioned to support the lateral supports 172 in anvil block half portion 12.The distal walls of central part 173 173a defines tissue retainer.A pair horizontal cylindrical pivot component 187 is positioned at below groove 174.Each pivot member All define par 187a(and see also Fig. 2 A).The near-end of cartridge half-section 14 also includes a pair vertical support 188. Each vertical support 188 includes the elongated vertical slit 188a with rounded bottom surface.Vertical slot 188a is dimensioned For during assembly when anvil block half portion 12 is supported in cartridge half-section 14, accommodate the finger being formed at anvil block half portion 12 184(Figure 21) on protuberance 186.By being positioned in vertical slot 188a by protuberance 186, anvil block half portion 12 can be with scissor Drive manner pivot relative to cartridge half-section 14 between the open and the closed positions.In one embodiment, convex Portion 186 has teardrop shaped profile.At least one sidewall of cartridge half-section 14 includes that bifurcated recess 189(sees Fig. 3), below Will be discussed in further detail.

Clamp operation bar 16 includes handle portion 190 and the thumb engagement adjacency section 192 with grip part 190a.Such as institute above Discussing, the flange part 178 at a pair interval is supported on the far-end of clamp operation bar 16.Each flange part 178 defines Otch 176, otch 176 is sized to when anastomat 10 moves towards clamped position (Fig. 2 B), accommodates anvil block half portion 12 Respective transversal supporting member 172.The far-end of clamp operation bar 16 is further defined with a pair distally C-shaped groove 194, the pair of distally C-shaped groove 194 is sized to accommodate the pivot member 187 of cartridge half-section 14.It is little that each groove 194 defines width Notch in the diameter of pivot member 187.Because the width of the notch of each C-shaped groove 194 is both less than the straight of pivot member 187 Footpath, so, when clamp operation bar 16 is loaded on cartridge half-section 14(Figure 24) time, pivot member 187 must be along pivot structure The surface of the par 187a of part 187 is slipped in groove 194 along the direction of the arrow " x " of Fig. 2 A.So, clamp operation bar 16 must Must be positioned to acutangulate with cartridge half-section 14 as shown in Figure 2 A, so that clamp operation bar 16 is around the pivot of cartridge half-section 14 Shaft component 187 is pivotally mounted on.As depicted, be in the clamp operation bar of released position relative to cartridge half-section Angle is compared, and this acute angle is the angle bigger relative to cartridge half-section.Pivot member 187 is being positioned at C-shaped groove 194 After in, clamp operation bar 16 can rotate to the position shown in Fig. 2 the most in the counterclockwise direction, so that clamp operation bar 16 are filled to cartridge half-section 14.

As shown in Figure 3A, the inwall of the flange part 178 of clamp operation bar 16 includes that the circle with flattened side walls 201a is convex Portion 201.Along with clamp operation bar 16 rotates to the position shown in Fig. 2 B from the position shown in Fig. 2 A, protuberance 201 travels forward also Deform under the outer wall effect of cartridge half-section 14, until protuberance 201 moves to be formed at the sidewall of cartridge half-section 14 In Part I 189a(Fig. 2 A of bifurcated recess 189) in.Bifurcated recess 189 is formed at nearside and the nail bin of U-shaped groove 174 Accommodate the nearside of the lateral supports 172 in half portion 14.By protuberance 201 being positioned in the Part I 189a of recess 189, Prevent clamp operation bar 16 from rotating to so that clamp operation bar 16 can separate (Fig. 2 A) and therefore keep with cartridge half-section 14 In open position or the position of released position (Figure 22).When clamp operation bar 16 moves to clamped position, deformable protuberance 201 through protruding recess barriers portion 189c (Fig. 5) the Part II 189b that enters bifurcated recess 189b so that clamp operation Bar 16 is maintained at clamped position (Figure 27 A).In this position, flattened side walls 201a of protuberance 201 adjoins recess barrier portion 189c. It will be noted that first and second recess portions 189a, 189b are different structures, but can be similar knot alternatively Structure.It is to be further noted that recess portions 189a, 189b can have the height of the diameter exceeding protuberance 201 or space thus be Protuberance provides the space of motion in part 189a, 189b.

With reference to Fig. 2 and Fig. 2 C, cartridge half-section 14 and SULU18 and transmitting group are filled to it at clamp operation bar 16 After part 20 is loaded in channel component 22, it is possible to anvil portion 12 is assembled into cartridge half-section 14.It should be noted that can Before or after clamp operation bar 16 is filled to cartridge half-section 14, SULU 18 and emitting module 20 are loaded into passage In component 22.In order to anvil block half portion 12 is connected to cartridge half-section 14, the protuberance 186 of finger 184 is positioned at nail bin and holds Receive half portion 14 vertical support 188 vertical slot 188a in.Thereafter, towards cartridge half-section 14 rotary anvil half portion 12, so that lateral supports 172 is positioned in U-shaped groove 174.

In order to operation anastomat 10 is positioned at clamped position, rotate clamping in the counterclockwise direction from the position shown in Fig. 2 B Action bars 16.Along with the rotation of clamp operation bar 16, lateral supports 172 is accommodated in the otch 176 of flange part 178, And do cam motion towards cartridge half-section 14.At the clamped position shown in Fig. 1, anastomosis staple variant part 198 is positioned to tightly The end face of adjacent SULU 18.

With reference to Fig. 3, Figure 12, Figure 19 and Figure 26, as discussed above, guide block 48 is pivotally supported at emitting module 20 Static housing 26 in.Guide block 48 includes distally extending nose 220(Figure 12), nose 220 is supported on logical at SULU 18 It is placed in time in road component 22 below SULU 18.The inner surface of guide block 48 includes lock face 222(Figure 19), lock face 222 is at kiss Clutch 10 is accommodated in when being in released position in the recess 49 and 51 of cutter actuator lever 44.When SULU 18 is positioned at passage structure Time in part 22, before clamp operation bar 16 is moved to clamped position, SULU 18 is positioned at nose 220 above and not to be had Fall completely within channel component 22, as discussed above.When anastomat 10 moves to clamped position, the location in anvil block half portion Finger 170(Fig. 3) engage with the end face of the body 120 of SULU 18, so that SULU 18 falls completely within channel component 22.It After, locating finger 170 engages with the groove of SULU 18, so that SULU 18 is properly located relative to anvil portion 12b.Along with SULU 18 fall completely within channel component 22, and SULU 18 is pressed down against the nose 220 of guide block 48, so that guide block 48 is around protuberance 72 pivot Turn.When guide block 48 pivots, lock face 222 moves out recess 49 and 51 to unlock cutter actuator lever 44(Figure 26).This structure is prevented Stopped before clamping that cutter actuator lever 44 is relative to the motion of guide block 48, to guarantee that cutter actuator lever 44 and SULU cutter 40 exists Suitable location is kept in order to operate joint before use.

With reference to Figure 24 to Figure 28, when anastomat 10 is in clamping, non-emissive position, the slide block 52 of emitting module 20 is in It is positioned at the retracted position (seeing Figure 25) of the proximal end of channel component 22 and static housing 26.In this position, pressing plate 54 positions In the otch 55 of channel component 22, and the pin 88 of pressing plate 54 is positioned in the bow-shaped recess 94 launching action bars 50, stop is recessed (see Figure 12 B) below groove 94a.So, launch action bars 50 can pivot so that activating from the either side of anastomat 10 and coincideing Device 10.Additionally, in this position of slide block 52, the finger 108 of cutter actuator lever 44 is positioned at the distally of the groove 110 of slide block 52 Near wall.So that clamp operation bar 16 is maintained at clamping position in protuberance 201 is positioned at the Part II 189b of bifurcated recess 189 Put.As described above, flattened side walls 201a of protuberance 201 orientates adjacent recess barrier portion 189c as to prevent protuberance 201 from Two part 189b(Figure 27 A) by mistake remove.

With reference to Figure 25 and Figure 26, when slide block 52 is in retracted position, the cam surface 114b(figure of cutter 40 and cam lever 46 9) it is positioned at the proximal end of SULU 18, and the engagement member 158 that the nearside hook 156 of safety interlocking 128 is orientated as with cutter 40 connects Close, so that safety interlocking 128 is maintained at locking orientation.Additionally, the upwarping of have a downwarp hook portion 40b and the cutter actuator lever 44 of cutter 40 Hook portion 106 engages, so that emitting module 20 is connected to the cutter 40 of SULU 18.

With reference to Figure 29 to Figure 32, when launching action bars 50 direction that arrow " A " indicates along Figure 29 court and distally advancing, Slide block 52(Figure 32) distal motion in the static housing 26 of emitting module 20, to realize corresponding motion and the cutter of cam lever 46 The lag motion of tool actuator lever 44.As discussed above, the lag motion of cutter actuator lever 44 is equal to the groove 110 of slide block 52 Length, and caused by the motion in the groove 110 of slide block 52 of the finger 108 of cutter actuator lever 44.When finger 108 adjoins recessed During the proximal wall 112 of groove 110, cutter actuator lever 44 start with slide block 52 together with move.Along with cam lever 46 distal motion is led to Crossing the static housing 26 of emitting module 20, the cam surface 114b on the sidewall 114 of cam lever 46 is pushed through SULU 18, from And engage (Figure 17) with propeller 122 in order, to eject anastomosis staple 126 from the slit 130 of body 120.As a result, due to cutter The far-end of tool actuator lever 44 engages with cutter 40, and cutter 40 is pushed through SULU 18 with at anastomosis staple row after pre-set delay Between cutting tissue.

As shown in the dotted line in Figure 32, when slide block 52 distal motion in static housing 26, pressing plate 54 mounts logical The inner surface movement of the static housing 26 above road component 22 and along emitting module 20.At this moment, the pin 88 of pressing plate 54 moves to In locking groove 94a, to prevent from launching the further pivoting action of action bars 50.

With reference to Figure 32, when cutter 40 distal motion in SULU 18, the engagement member 158 of cutter 40 closes with safety The nearside hook 156 of lock 128 separates.

With reference to Figure 33 and Figure 34, when transmitting action bars 50 being returned to its recent side position with retraction cam lever 46 and cutter When 40, manually pivot clamping action bars 16 is so that protuberance 201 separates with the Part II 189b of bifurcated recess 189, so that folder Tight action bars 16 moves to its released position to allow anastomat 10 to move to open position.In open position, anvil block half portion 12 Spaced apart with cartridge half-section 14, and spring 152(Figure 17) make safety interlocking 128 direction of arrow B instruction along Figure 34 enclose It is pivoted to its unlocked position, so that safety interlocking 128 is protruding upward from SULU 18 around pivot member 150.In unlocked position, peace Fully closed lock 128 prevents anastomat 10 from moving back into clamped position.In order to reuse anastomat 10, it is necessary to use new SULU 18 change the SULU 18 used.

During operation technique, it is possible to repeatedly change SULU 18 single patient to be used for multiple times anastomat 10.If Provide integral unit, then can repeatedly change SULU and emitting module.Owing to each SULU 18 is both provided with new cutter 40, Hence in so that torn tissue minimizes.After operation technique, SULU 18 He used can be removed from channel component 22 Emitting module 20, and process in an appropriate manner.Thereafter, by clamp operation bar 16 is rotated to the position shown in Fig. 2 A And make pivot member 187 separate with C-shaped groove 194, it is possible to from cartridge half-section 14, remove clamp operation bar 16.Now may be used So that anvil block half portion 12, cartridge half-section 14 and clamp operation bar 16 are carried out sterilizing, such as, carry out sterilizing by high compressed steam, And reuse together with new SULU 18 and emitting module 20 in the manner described above.

It should be understood that and can carry out various improvement with the embodiment of surgical fasteners bringing device of this disclosure.Cause This, foregoing description is understood not to limit, and is merely the example of embodiment.Those skilled in the art is devised by Other within the scope of the present disclosure and spirit improve.

Claims (15)

1. a surgical fasteners bringing device, including:

Anvil block half portion, including distal anvil portion and proximal handle portion；

Cartridge half-section, defines elongated passageway component, and described elongated passageway component has extremity and a proximal portion, described far Sidepiece is sized to accommodate releasedly nail bin, and described proximal portion is configured to support emitting module, described cartridge Half portion also includes the sidewall limiting bifurcated recess, and described bifurcated recess has the first recess separated by protruding recess barrier portion Part and the second recess portions；

Clamp operation bar, is filled to described cartridge half-section, and described clamp operation bar has proximal portion and extremity and includes Handle portion,

Described clamp operation bar is operably associated with described anvil block half portion and described cartridge half-section, and can be from unclamping Position moves to clamped position, thus the anvil portion in described anvil block half portion is dressed up the described nail bin of next-door neighbour, wherein, institute releasedly Stating the sidewall that clamp operation bar also includes having the first protuberance, described first protuberance can be positioned at the first of described bifurcated recess In recess portions, so that described clamp operation bar is releasably held in released position, and described first protuberance can position In the second recess portions of described bifurcated recess, so that described clamp operation bar is releasably held in clamped position.

Surgical fasteners bringing device the most according to claim 1, wherein, described clamp operation bar is filled to nail releasedly Capacity receives half portion.

Surgical fasteners bringing device the most according to claim 1 and 2, it farther includes emitting module, described transmitting Assembly is configured to be contained in releasedly in the proximal portion of described cartridge half-section, and includes launching action bars and regularly Installing to the cam lever on described transmitting action bars, described emitting module also includes static housing and cutter actuator lever, described cutter Actuator lever is configured to engage with the cutter being supported in single use load units, and described static housing is configured to release It is supported on putting in the proximal portion of described cartridge half-section.

Surgical fasteners bringing device the most according to claim 3, wherein, described static housing includes U-frame frame, described U-frame frame includes diapire and pair of sidewalls, and each of which in sidewall has the near-end containing the second protuberance, and each is second convex Portion is all positioned as being contained in releasedly in the groove in the near-end being formed at described elongated passageway component, so that described static Shell is releasably held in the proximal portion of described elongated passageway component.

Surgical fasteners bringing device the most according to claim 1, wherein, described first protuberance includes smooth sidewall, When described clamp operation bar is in clamped position, described smooth sidewall adjoins with the recess barrier portion of described projection.

Surgical fasteners bringing device the most according to claim 1, wherein, described first protuberance is deformable, and When described clamp operation bar moves between released position and clamped position, described first protuberance is through the recess of described projection Barrier portion.

Surgical fasteners bringing device the most according to claim 1, wherein, described clamp operation bar is filled to institute pivotally State cartridge half-section, and described clamp operation bar is pivoted to make described first protuberance recessed from the first of described bifurcated recess Portion's componental movement enters the second recess portions of described bifurcated recess through the recess barrier portion of described projection.

Surgical fasteners bringing device the most according to claim 1, wherein, described cartridge half-section includes pair of pivot Component, each pivot member is respectively provided with flat surfaces.

Surgical fasteners bringing device the most according to claim 8, wherein, described clamp operation bar includes that a pair C-shaped is recessed Groove, the width of each C-shaped groove is respectively less than the diameter of described pivot member so that described pivot member needs along described smooth Surface slides in described C-shaped groove, so that described clamp operation bar is connected in described cartridge half-section.

Surgical fasteners bringing device the most according to claim 9, wherein, described clamp operation bar is relative to described nail Capacity is received half portion and is become the first angle so that described clamp operation bar is connected in described cartridge half-section, and relative to being in The cartridge half-section of released position becomes the second more low-angle.

11. surgical fasteners bringing devices according to claim 9, wherein, described flat surfaces is positioned in described pivot At the proximal face of shaft component.

12. surgical fasteners bringing devices according to claim 1, wherein, described cartridge half-section has pair of U-shaped Groove is to accommodate the lateral supports in described anvil block half portion, and described U-shaped groove is positioned in the distally of described bifurcated recess.

13. surgical fasteners bringing devices according to claim 1, wherein, described cartridge half-section includes a pair pivot Shaft component, described pivot member is positioned in the distally of described bifurcated recess.

14. surgical fasteners bringing devices according to claim 1, wherein, described first recess portions and the second recess Part is different structure.

15. surgical fasteners bringing devices according to claim 1, wherein, the first recess portions and the second recess portions Height exceed the diameter of described first protuberance.