WO2012040984A1 - Endoscopic surgical cutting stapler with replaceable staple cartridge - Google Patents

Endoscopic surgical cutting stapler with replaceable staple cartridge Download PDF

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Publication number
WO2012040984A1
WO2012040984A1 PCT/CN2010/079796 CN2010079796W WO2012040984A1 WO 2012040984 A1 WO2012040984 A1 WO 2012040984A1 CN 2010079796 W CN2010079796 W CN 2010079796W WO 2012040984 A1 WO2012040984 A1 WO 2012040984A1
Authority
WO
WIPO (PCT)
Prior art keywords
staple
staple cartridge
cutting
arcuate
cartridge
Prior art date
Application number
PCT/CN2010/079796
Other languages
French (fr)
Chinese (zh)
Inventor
张祖仁
袁栋坤
蒋震宇
吉荣
张奕奕
徐维华
虞国安
戴晓东
Original Assignee
常州市康迪医用吻合器有限公司
上海创亿医疗器械技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201010293670.9 priority Critical
Priority to CN2010102936709A priority patent/CN101966093B/en
Application filed by 常州市康迪医用吻合器有限公司, 上海创亿医疗器械技术有限公司 filed Critical 常州市康迪医用吻合器有限公司
Publication of WO2012040984A1 publication Critical patent/WO2012040984A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B17/07207Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214Stapler heads
    • A61B2017/07271Stapler heads characterised by its cartridge
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214Stapler heads
    • A61B2017/07278Stapler heads characterised by its sled or its staple holder
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214Stapler heads
    • A61B2017/07285Stapler heads characterised by its cutter

Abstract

An endoscopic surgical cutting stapler with a replaceable staple cartridge (9) includes a stapler body (5), an end effector (2), an extension tube(4) connecting the stapler body (5) and the end effector (2), and an operating mechanism (6) controlling the action of the end effector (2). The end effector (2) consists of an effector frame (7), a slide bar (8), a staple cartridge (9), and an anvil (10). The staple cartridge (9) consists of a staple cartridge housing (11), staple pushers (12), a staple pushing sled (13) and staples (14). Staple slots (15), staple pushing apertures (16), a sled slot (17), and a knife pushing slot (18) are provided in the staple cartridge housing (11). A cutting knife (21) is installed in the knife pushing slot (18) of the staple cartridge housing (11). An arcuate slide slot (23) is provided on a proximal end of the staple cartridge housing (11), and an arcuate bump (25) is provided on the cutting knife (21). Before use of the staple cartridge (9), the arcuate bump (25) of the cutting knife (21) is inserted in the arcuate slide slot (23) of the staple cartridge housing (11) to position the knife blade (29) of the cutting knife (21) in the knife pushing slot (18) of the staple cartridge housing (11). In use of the staple cartridge (9), the slide bar (8) is moved from the proximal end to the distal end of the staple cartridge (9). Firstly the slide bar (8) pushes the cutting knife (21) and pushes the arcuate bump (25) of the cutting knife (21) out of the arcuate slide slot (23) of the staple cartridge housing (11) so that the knife blade (29) of the cutting knife (21) protrudes out of the knife pushing slot (18) of the staple cartridge housing (11), and then the slide bar (8) pushes the cutting knife (21) to move in the knife pushing slot (18) of the staple cartridge housing (ll).When the staple pushing sled (13) pushes the staple pushers (12) with its sloped surface to move in the staple pushing apertures (16), the staples (14) are pushed out of the staple slots (15).

Description

With replaceable staple cartridge endoscopic surgical cutting stapler

FIELD

The present invention relates to endoscopic surgical use in thoracoscopic surgery cutting stapler, and more particularly, to a replaceable staple cartridge with endoscopic surgical cutting stapler, a medical device field. Background technique

In endoscopic surgery, endoscopic cutting stapler Xi Boke commonly used in the digestive tract esophagus, stomach, duodenum, small intestine, colon, rectum, appendix, gallbladder, pancreas, and spleen surgical cutter stapler, also for respiratory tract and lungs and windpipe cutting anastomosis, is also used for urinary bladder and uterus in the reproductive system and other cutting anastomosis, can reduce surgical time and improve the quality of surgery.

Conventional endoscopic surgical cutting stapler U.S. Patents 20080308602, 20090206124, and 20090206123 Xi various endoscopic described Boke cutting stapler. When using endoscopic cutting stapler Xi Boke, the inner diameter of first end effector through the lumen T into puncture needle is 12mm to 13mm, and then the control performed by axial rotation and / or rotation of a joint to be cut and stapled tissue aligned, to operate the clamping mechanism, pushing the slider, to be cut and stapled tissue clamped between the anvil head and performing a staple cartridge. The firing mechanism is then operated, and then push the slider: the slide bar ends are inserted into both ends of the anvil and the staple cartridge of an end effector, so that the desired thickness of the clamping between the anvil and the staple cartridge; slide bar by pushing the staple staple pushing slide block pushing the staple out of the staple cartridge to penetrate the clamped tissue to be cut and stapled on the straight anvil staple forming grooves, the U-shaped bent into a B-shaped staples, anastomosis surgical tissue reached Objective; slide bar cutting blade on cutting the clamped tissue to be cut and stapled, the tissue to achieve the purpose of cutting operation. Upon completion of the cutting operation agreement, operating clamping mechanism release has been cut and stapled tissue in order to exit the endoscopic cutting stapler Xi Boke. Endoscopic surgical cutting stapler firing mechanism and the clamping mechanism may preclude the use of other operating means. The operating mechanism may further indicating means. Endoscopic surgical cutting stapler firing mechanism and the clamping mechanism and other mechanisms may be operating as described in US Patent No. 20080308602 manual endoscopic surgical cutting stapler and 20090206123, may be as described in US Patent 20090090763 and 20090095790 endoscopic electromotive the surgical cutting stapler, and may be as in U.S. Patent 20070125826 and 20080029577 fluid driven Xi Boke endoscopic cutting stapler.

Conventional endoscopic surgical cutting stapler, its components comprising: a stapler body, an end effector connected to the extension pipe and the body performs stapling head, the control means performs an operation of an operation head. Execution performed by the first frame, a carriage, staple cartridge and anvil components. Installation slider in the implementation of the shelves, the staple cartridge and anvil. Staple cartridge housing a staple cartridge, staple pushing block, staples and staple pushing sled composition. Staple cartridge housing groove, and push the staple pushing hole sipe. Staples installed in the nail groove. The staple pushing block is mounted in the staple pushing hole. The staple pushing block bore may be moved so as to push the staples out of the staple in the staple slot. Staple pushing sled rely staple slant pushing the push block out of the staple when the staple pushing the staple slots bore movement. U-shaped staples, the two staple legs, and a staple beams composed of two nail tip. One end of the staple legs are connected to the beams staple, the other end of the nail tip. Staple may preclude the use of stainless steel wire, tantalum wire, titanium wire or other metal wire manufactured having similar properties. The two legs of the staple nail nail inserted in the slot. Staple staple staple pushing beam sitting on the edge of the block. An end face of the anvil and staple positions are within the staple cartridge corresponding staple forming grooves and a staple cartridge pushing cutting position corresponding sipe groove. Staple slots and push staple hole of the staple cartridge housing arranged on both sides of the slot to push the knife. Anvil staple forming grooves are arranged on both sides of the respective anvil cutting groove. To total arranged in two rows, three rows, four rows, five rows, six rows of seven or eight rows row. With a cutting blade, the movable blade pushing slot in the anvil and staple cartridge slot cutting slide bar.

Endoscopic surgical cutting stapler stapling every one after each cutting operation, the staple is pushed from the staple cartridge, to be replaced with a new staple cartridge in order to perform a cutting operation in the stapling. Such as in endoscopic surgical described in U.S. Patent 20090206123 cutting stapler, stapling to complete the cutting operation, to replace the disposable loading unit for reuse. New disposable loading unit includes a staple cartridge with the head and the end connector performed. This style endoscopic surgical cutting stapler unsatisfactory is that, in the same operation in the same patient several disposable loading unit to be replaced, since the disposable loading unit comprising performing head and an end connector, so that The total cost is quite high. Another unsatisfactory at this style endoscopic surgical cutting stapler is, as described in U.S. Patent No. 20090206123, a disposable loading end of the connector from the device may inadvertently fine endoscopic cutting stapler Xi Boke from the elongated body, so that endoscopic surgical cutting stapler malfunction or can not operate, thus also proposed in U.S. Patent 20090206123 disposable loading unit can neither collinear along an axis of the elongated body, the mounting direction is not parallel to the elongated body further proposed to increase at the end of disposable loading unit connector threaded, or detent mechanism, or snap means, to ensure that the disposable loading unit on the elongated body can be surely connected to the endoscopic surgical cutting stapler. Because endoscopic surgery, the diameter of the elongated body Xi Boke endoscopic cutting stapler is 12mm to 13mm, and therefore, high processing and end connector assembly of the disposable loading unit such complex difficulty, it is difficult to mass guarantee, surgery repeated assembly and disassembly ^ Gen trouble, when its total cost ^ head high. Thus the disposable loading unit of the stapler endoscopic surgical cutting should be improved.

It is apparent from the above, have now devised a different style of endoscopic surgical cutting stapler, and a new endoscopic surgical cutting stapler development work continues to cut endoscopic surgical stapling of the world's large-scale use of each year more convenient is further improved, so that the use, during assembly and disassembly more convenient, lower operation costs.

SUMMARY

Object of the present invention is to overcome the disadvantages of the prior art, to provide an easy, convenient assembly and disassembly of the cartridge with a replaceable staple cartridge endoscopic surgical cutting stapler.

Technical solution to achieve the above object is: A staple cartridge having replaceable cutting endoscopic surgical stapler comprising a stapler body, end effector, the extension tube connected to a stapler body and the head performs the control operation means performs the operation of the head , executed by the execution head frame, slide bar, the composition of the anvil and the staple cartridge, the staple cartridge from the cartridge casing, staple pushing block, staples and staple pushing sled composition, the staple cartridge housing staple slot, pushing the nail hole, slide grooves and push sipes, mounted on both sides of the staple staple slots, staple pushing block is mounted on the staple push hole, staple pushing sled mounted in slide slots, grooves, and push the staple staple staple cartridge housing holes arranged in the push sipes with the end surface and the anvil staple position corresponding to the staple cartridge in the staple forming grooves and a staple cartridge housing sipe pushing cutting position corresponding to the groove, the blade pushing the staple cartridge housing slot mounted cutting blade, at the proximal end of the staple cartridge housing has an arcuate chute and having a curved bump cutter blade, a staple cartridge prior to use, the cutting blade is inserted into the arcuate projections arcuate sliding the cartridge housing, the cutting blade so that the blade is positioned in the blade pushing the staple cartridge housing slot; staple cartridge using From the proximal end of the blade slider is moved to the staple cartridge at the distal end, the first push the slide bar cutting blade, the cutting blade and the arcuate projections from the inner arcuate chute Release staple cartridge housing the staples from the cutter blade push cartridge housing slot extending knife, and then push the slider groove cutter knife blade moves in a push, push the staple cartridge housing slide ramp which rely on the staple pushing the push block butoxy vessel anastomotic staples Release bore when the pusher moves .

An arc chute on both sides of the cartridge housing located at the proximal end of the staple cartridge housing proximal end, said cutting blade arcuate projections located on both sides of the cutting blade.

Arcuate sliding within the cartridge housing resilient stopper; elastomeric stopper so that the arcuate lugs cutting blade is constrained to slide within the arcuate staple cartridge housing.

Distal end of the cutting blade with a recess, the proximal end of the staple pushing slider bump, the cutting blade embedded in the groove to push the staple sled bump forming a partial pivot connection.

At the proximal end of the cartridge housing embedded insert, the insert is located within the arc chute.

The distal end of the slider bump, when the slider moves toward the proximal end from the distal end of the cartridge, the bump at the proximal end of the cutting blade back to the staple cartridge.

An elastic inner arcuate chute flap, the flap elastic partition into the arc chute the arc chute proximal end and a distal arc chute; the cartridge prior to use, the cutting blade arcuate projections are respectively inserted into the proximal end of the arcuate chute insert the knife blade cutting tool in said slot to push the cartridge housing, the resilient arcuate baffle plate insert chute of the cutter blade arcuate lug is confined within the proximal end of the arcuate chute insert; staple cartridge, in use, the movement of the slider from the proximal end to the distal end of the staple cartridge, first push cutter blade, the cutting blade edge baffles within the elastic pressing action of the arc chute occurs arcuate projections elastically deformable, arcuate blade for cutting the bump is pushed from the proximal end of the arcuate chute insert, the cutting blade from the blade pushing the staple cartridge housing slot extends, pushing a cutter knife and slide bar moves to push the knife slot in the staple cartridge housing, the proximal end of the arcuate chute while being elastically resilient flap which seals the insert; when the slide when the rod is moved proximally from the distal end of the staple cartridge, the cutting blade back to the first slide bar at the proximal end of the staple cartridge, and then bumps curved cutting blade Flexible baffles in the arcuate chute pressing elastic deformation occurs, so that the cutting blade into the arcuate projections insert the distal end of the arc chute, so that edges of the cutting blade is positioned to push the staple cartridge housing sipe inside, while the elastic resilient flap within chute arcuate cutting blade arcuate projections constrained within the distal end of the arcuate chute insert.

When the cutting blade is arcuate projections constrained within the distal end of the arcuate sliding the cartridge housing, the inclination of the cutting blade is less than 45. .

The distal end of the staple cartridge housing has elastic hook and side bump, at the distal end of the frame has side grooves execution, the elastic hook staple cartridge at the distal end of the housing and the distal end of execution carrier at the bottom of the composition of a detachable locking structure; when mounted to the cartridge frame when executed, side bump cartridge is inserted into the housing at the distal end at the distal end side grooves perform frame, executed in the staple cartridge constraint rack moves back and forth direction of the elastic resilient hook at the distal end of the staple cartridge shell after deformation at the bottom of the distal end of the snap cage is performed, the moving direction of the constraint in the implementation of the staple cartridge holder; performed when the cartridge holder detached from the when, at the distal end side of the cartridge casing is drawn out from the bump at the distal end side grooves perform frame, the resilient elastic hook staple cartridge at the distal end of the distal housing from the bottom of the frame is performed after modification, staples warehouse racks from execution.

The bottom of the cartridge housing having a bottom cover is mounted, respectively, on both sides of the bottom cover is connected to the card on both sides of the staple cartridge housing.

After preclude the use of the above technical solutions, the staple cartridge housing slot to push the knife cutting blade is mounted with the bumps, the proximal end of the staple cartridge housing has an arc chute, the resilient hook and performs the staple cartridge holder at the distal end housing at the bottom of the distal end of a detachable locking structure composition. When the cartridge housing is mounted to the mobile frame when executed, the elastic engaging hook at the distal end of the staple cartridge shell after deformation at the bottom of the distal end of the snap cage execution, the staple cartridge housing to constrain the direction along the rack performed. When the cartridge holder housing detached from the execution, the elastic engaging hook at the distal end of the staple cartridge from the housing after modification execution at the bottom of the distal end of frame, so that the staple cartridge housing from performing frame. A staple cartridge prior to use, the cutting blade bumps are confined within the arc chute of the staple cartridge housing and the cutting edge of the knife blade positioned to push the cartridge housing slot. When using the cartridge, the slider push cutter blade, the cutting blade so that the blade protrudes from the blade pushing the staple cartridge housing slot. Staple cartridge after use, the slider back to the cutting blade cutting blade bumps re arcuate chute is constrained within the cartridge housing, the knife and the cutting edge of the staple cartridge housing positioned again push knife slot, At this time, the cutting blade angle is less than 45. , Not from the proximal end of the staple cartridge driven slider is moved toward the distal end, prevents the used cartridge is used again. Thereby cutting stapler head performs the same endoscopic surgical replacement of only the cartridge with the cutting blade, to the endoscopic cutting stapler Xi Boke performing multiple stapling endoscopic surgical cutting using the same, such that the use of when security is more convenient, more convenient when the cartridge assembly and disassembly, lower operation costs.

BRIEF DESCRIPTION

FIG. 1 is an external perspective view of the opening between the staple cartridge and anvil when the joint with replaceable staple cartridge endoscopic surgical cutting stapler embodiment of the present invention does not rotate;

FIG 2 is an external perspective view of the opening between the staple cartridge and the anvil of FIG. 1 during endoscopic surgical cutting stapler joint rotation;

FIG 3 is a diagram of FIG. 1 endoscopic surgical cutting stapler stapler body, extension tube, open body Boguan Li Xi enlarged view at the joint between the operating mechanism and the end effector is removed after the staple cartridge and the staple anvil;

FIG 4 is a diagram of FIG. 1 endoscopic surgical cutting stapler body of stapler, extension tube, an enlarged view of the body Boguan Li Xi opening between the end effector and a staple cartridge after the anvil and operation of the joint mechanism is removed; FIG. 5 is when an external perspective view of an enlarged opening between the staple cartridge and the staple anvil is removed after the first execution of the collar of FIG 4;

FIG 6 is a diagram of FIG. 1 endoscopic surgical cutting stapler stapler body, extension tube, Boguan Li Xi enlarged view of the closing body between the end effector and staple cartridge after the anvil is removed and operation of the joint mechanism;

7 is an enlarged perspective view showing the appearance when closed between the anvil and the staple cartridge is removed after the first execution of the collar of Figure 6;

FIG 8 is an enlarged external perspective view of the rear of the end effector of FIG. 1 Buke mirror Xi cutter stapler;

FIG 9 is an enlarged external perspective view showing the staple cartridge of FIG. 1 Xi endoscopic cutting stapler Bu Ke is taken out;

FIG 10 is an enlarged external perspective view showing the endoscopic cutting stapler Xi Boke FIG. 1 cartridge bottom cover is removed;

FIG 11 is an external perspective view showing an enlarged view of the staple cartridge housing 10;

FIG 12 shows the slider in the end effector of FIG. 1 in driving the cutting blade, staple pushing block, and anastomosis staple pushing sled Boguan Li Xi enlarged view before the nail body;

FIG 13 shows the slider of FIG. 1 in the end effector driven cutting blade, staple pushing block, staple pushing sled and an enlarged external perspective view when a staple;

FIG 14 is an external perspective view showing an enlarged view of an anvil;

FIG 15 is an enlarged graph execution body Buguan Li Xi rack of Figure 1;

Exploded view of the cutting blade with the insert assembly when the arc chute 16 is a diagram of the edges of the cutting blade in the cartridge of Figure 1 positioned blade pushing the staple cartridge housing slot;

FIG 17 is an exploded view showing the cutting blade and the insert assembly when the chute with a curved edge of the cutting blade within the staple cartridge of FIG. 1 protrudes from the staple cartridge slot to push the knife housing;

And another cutting blade having an arcuate chute insert when the resilient flap 18 is a staple cartridge of Figure 1 prior to use, the cutting edge of the blade cartridge located within the cartridge slot to push the knife housing an enlarged external perspective view of an assembly;

19 is a cutting blade and another arc chute with an elastic baffle staple cartridge of FIG. 1 in use, the inner edges of the cutting blade protrudes from the blade pushing the cartridge slot of a staple cartridge housing an enlarged external perspective view of the insert assembly;

And another cutting blade having an arcuate chute 20 when the resilient flap is a staple cartridge of FIG. 1 after completion of the stapling operation of the cutting, the cutting edge of the blade cartridge located within the cartridge slot to push the knife housing Boguan Li Xi enlarged body insert assembly of FIG.

detailed description

The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. 1 and 2, Xi Boke endoscopic cutting stapler head 2 is performed by the joint 3, the extension tube 4, 5 stapler body 6 and the operating mechanism components. The operating mechanism 6 is located stapler body 5, through the lumen of the extension tube 4 head 2 performs a control operation (in the stapler body 5 and the extension pipe portion 46 in an operating mechanism not shown, refer to U.S. patent specification cited therein) . Performing head 2, the joint 3, the extension tube 4, 5 in turn is connected to a stapler body sequentially. As shown in FIGS. 4 to 13, performed by the head 2 is performed frame 7, slide bar 8, 9 staple cartridge 10 and anvil components. Slide bar 8 is mounted on the actuator frame 7, the staple cartridge and the staple anvil 10 9. 9 cartridge housing 11 by a staple cartridge, staple pushing block 12 pushing the staple 13 and staple sled 14 composition. Staple cartridge housing 11 within the staple channel 15, pushing the nail hole 16, the groove 17 and the slider 18 pushes the sipes. Staple 14 is mounted within the staple slots 15. The staple pushing block 12 is mounted in the staple pushing hole 16. Staple pushing sled 13 mounted in the slide groove 17. Staple cartridge housing 15 and staple slots 11 of staple pushing push holes 16 arrayed on both sides of each of the sipes 18 are arranged in three rows. The end face of the anvil 10 has a staple in the staple cartridge 9 corresponding to position 14 of the forming position pushing sipe 18 in the groove 11 and the staple cartridge housing 19 and corresponding groove 20 cut. 10 of the anvil staple forming grooves 19 are arranged corresponding to each of the three rows on both sides of the cut groove 20 of the anvil 10. Staple anvil holder 10 and the actuator 7 is pivotally connected.

4 to FIG., The inner sipes 18 pushing the staple cartridge 13 has a housing 11 of the cutter 21 is mounted. When the slider 8 from the proximal end of cartridge housing 11 is moved distally, the slide bar 8 and the cutter 21 driven staple pushing sled 13 moves within cartridge housing 11 to push the sipes 18. Staple pushing sled 13 will depend on the bevel driven out of the staple 14 within the staple channel 15 pushing the staple pushing block 12 moves within the nail hole 16.

As shown in FIG. 4 to FIG. 17, the staple cartridge housing 11 at the proximal end of the insert 22 are embedded. Insert 22 has an arcuate chute 23. An arc chute 23 within the stoppers 24. Cutter 21 has an arcuate protrusion 25, the distal end of cutter 21 with a recess 26. Staple pushing sled 13 at the proximal end 27 of the bump. Staple cartridge housing 28 has a stopper groove 11 of the slide plate 17. 9 cartridge before use, when the arcuate projections 25 of the cutter 21 is inserted in the arcuate sliding insert the staple cartridge housing 11 22 23, 26 of the groove cutter 21 is fitted staple pushing projection 13 of the sled forming a local connection pivot 27, the arcuate chute 23 24 stopper within the cutter blade 25 is arcuate projections confined within an arcuate sliding insert the staple cartridge housing 11 22 23 21, the staple cartridge housing stopper 17 in the groove 11 of the slider 28 so that the slide plate 13 is pushed about the staples; ½ the slide groove 17 of the staple cartridge housing 11, so that the cutting blade 21 and the staple pushing sled 13 is restrained within the cartridge housing 11, then , tilt angle 21 is greater than the cutting blade 45. , The cutting blade and the blade 2921 is positioned to push the sipe 18 of the staple cartridge housing 11. In use the cartridge 9, when the slider 8 from the proximal end of cartridge housing 11 is moved distally, the slide bar 8 is first driven cutter 21, the projection 25 of the pressing action block arcuate cutting blade 21 the arc chute 24 within the stopper 23 is elastically deformed from the constraints, the cutting blade so that the arcuate projections 21 of the arcuate sliding block 25 from the staple cartridge housing 11 is pushed out 23, while the cutting blade 21 groove 26 around the projection 13 to push the staple sled 27 to pivot the blade 21 of the cutting blade 29 protrudes from the inner sipe 18 pushing the staple cartridge housing 11, then pushing the slide bar 8 to advance the cutting blade 21 to push the staple slide 13, so that the staple pushing sled 13 is elastically deformed from the restraint after the stopper 28 in the slide groove 17, the slide bar 8 in order to push the cutting blade 21 and staple pushing sled 13 from the proximal end of the staple cartridge housing 11 to the distal end mobile. As shown in FIGS. 10 to 17, the slider 8 at the distal end 30 of the bump. When the slider 8 from the distal end of the staple cartridge housing 11 is moved proximally, the first protrusion 30 at the distal end of the cutting blade 8 slide bar 21 back to the proximal end of the staple cartridge housing 11, and the cutting blade within the arc chute 23 24 stopper is elastically deformed under the pressing action of the arcuate projections 21 of the block 25, so that the cutting blade 25 of arcuate projections 21 insert into the arc chute 11 of the staple cartridge housing 22 depths of 23, the cutter blade edge 2921 is located within the groove 11 of the blade 18 to push the staple cartridge housing.

As shown in FIGS. 3 to 8, 11 and 15, at the distal end of the staple cartridge housing 11 is provided with elastic hook 31 and the bump 32 side. 7 is performed with a holder at the distal end side grooves 33. Elastic hook 11 at the distal end of the staple cartridge housing 31 at the distal end of the bottom frame 734 composed of performing a detachable locking structure. When the cartridge 9 is mounted to the upper bracket performed 7, 11 at the distal end side of the staple cartridge housing projection 32 is inserted into the inner side grooves 33 perform frame 7 at the distal end, cartridge constraint performs frame 9 along the longitudinal direction 7 while moving, the elastic hook 11 at the distal end of the staple cartridge housing 31 snap elastically deformed at the bottom portion 347 performs frame at the distal end constraints 7 moves in the vertical direction along the staple cartridge 9 performs frame. When the cartridge side bump 9:00 perform frame 7 detached from the cartridge case 11 at the distal end 32 is withdrawn from the recess inner surface 337 at the distal end performs frame, while the distal end of the staple cartridge housing 11 the elastic hook 31 is elastically deformed from the distal end of the bottom portion 347 performs frame, so that the cartridge holder 9 from 7 performed. 9, mounted at the bottom of the staple cartridge housing 11 having a bottom cover 35. A bottom cover 35 connected to both sides of each card on both sides of the staple cartridge housing 11.

18 through FIG endoscopic surgical cutting stapler according to the present invention the proximal end 20 of the staple cartridge housing 11 fitted at some other insert 22, the chute 23 has an arcuate insert 22, insert 22 of the chute 23 within the arcuate resilient flap 36, the resilient flap 36 of insert 22 arc chute the arc chute 23 is divided into a proximal end and a distal arc chute 23-1 23-2. 9 staple cartridge prior to use, the cutting blade 25 of the arcuate projections 21 arc inserted into the proximal end 22 of the chute 23-1 insert, the cutting knife edge 2921 is positioned to push the staple cartridge housing 11, sipes 18 the arcuate chute flap elastic insert 22 within the cutter blade 2336 bump 25 is arcuate about 21; ½ insert the proximal end 22 of the arcuate sliding blocks 23-1, at this time, the cutting knife angle 21 is greater than 45. . Cartridge 9, the slide bar 8 from the proximal end of the cartridge 9 moves distally during use, the cutter 21 is first driven, the pressing action of the arcuate projections 25 of the cutter 21 of the arcuate chute 23 the elastic baffle plate 36 is elastically deformed, so that the cutting blade 25 of the arcuate projections 21 from the proximal end of the arcuate chute 22 inserts within 23-1 is pushed, the cutter blade 21 of the blade 29 from the staple cartridge housing 11 projecting push sipe 18, push cutter 21 is then moved within the staple cartridge housing 18 to push the sipes 11, the shutter 36 while the elastic resilient insert the proximal end of the arcuate sliding block 22 is sealed 23-1 . After completion of the cutting stapling operation, the slide bar 8 from the distal end of the cartridge 9 moves proximally, projections 30 at the distal end of the first cutting blade 8 back to sliders 21 at the proximal end of the cartridge 9, and then Flexible baffles in the arcuate chute 2336 is elastically deformed under the pressing action of the arcuate projections 25 of the cutter 21, the cutting blade so that the arcuate projections 21 of the chute 25 into the distal end of the insert 22 is arcuate within 23-2, the cutter blade edge 2921 is positioned to push the staple cartridge housing 11 of the sipe 18, the shutter 36 while elastically resilient arc chute 23 within the cutting blade 21 is arcuate projections 25 constraints insert the distal end 22 of the arcuate chute 23-2. When the arcuate projections 25 of the cutter 21 is constrained within the distal end of the insert 23-2 arcuate chute 22, cutter 21 is less than angle 45.

Used cartridge 9 is no longer a staple 14, the cutting is performed anastomosis endoscopic surgery evening Boke again will cause surgical failure, it must be replaced with a new cartridge with a cutting knife before reuse. Since the arc 21 when the cutting blade 25 is about bumps; ½ within the distal staple cartridge housing 22 of the insert 11 arcuate chute 23-2, the cutting blade 21 is smaller than the inclination angle 45 °, and therefore when used cartridge 9 when the frame 7 is still running, if the endoscopic surgical cutting stapler 1 is performed again endoscopic surgical cutting anastomosis, the slider 8 moves from the proximal end to the distal end of the staple cartridge 9, the slider 8 push cutter blade 21 of the cutting blade 25 of the arcuate projections 21 on the distal end of the arcuate chute 23-2 staple cartridge housing 11 of the insert 22 to prevent the slider 8 from further to the proximal end of cartridge 9 moving a distal end, surgery can prevent the used cartridge is again used 9 caused the failure, but also to promptly alert the user of the endoscopic surgical cutting stapler should be replaced with a new staple cartridge.

As compared with various conventional endoscopic surgical cutting stapler, stapler cutter with replaceable staple cartridge according to the present invention may be endoscopic surgical cutter stapler head in performing endoscopic surgical replacement of the same with only a new more convenient when the staples and cutting blade cartridge, you can use the same evening Boke endoscopic cutting stapler to perform multiple cutting endoscopic surgical stapler, making use of safer, more convenient when the cartridge assembly and disassembly, operation costs lower.

Herein are merely exemplary of the preferred embodiment of the application of the present invention, the above-described configuration may be some variations not departing from the spirit and scope of the invention. Or limiting, the present invention is not limited to the specific details set forth herein, but should retain any improvements or modifications of ordinary skill in the art medium is obvious.

It should be added that: herein the term "proximal" refers to the endoscopic cutting stapler Xi Boke near one end of the operator, while the term "distal" refers to those Xi Boke endoscopic cutting stapler away from the operator's end.

Claims

Claims
A staple cartridge having replaceable cutting endoscopic surgical stapler comprising a stapler body (5), end effector (2), connected to a stapler body (5) and the end effector (2) of the extension tube (4 ), performs the control head (2) the operation of the operating mechanism (6), end effector (2) performed by the frame (7), the slide bar (8), the cartridge (9) and the anvil (10), with a staple cartridge ( 9) a cartridge housing (11), staple pushing block (12), pushing the staple slide (13) and a staple (14) composition, there are (15), pushing the nail holes (16 staple slot within the staple cartridge housing (11) ), slide grooves (17) and the push sipes (18), staple (14) mounted within said staple magazine (15), the staple pushing block (12) mounted within said staple pushing holes (16) the staple pushing slide (13) mounted in said slide groove (17), the staple cartridge housing (11) of the staple slots (15) and push the nail holes (16) arranged on both sides of the push sipes (18) , within staple end face of the anvil (10) has a staple cartridge (9) (14) corresponding to the position of staple forming grooves
(19) push the sipes (18) and a staple cartridge housing (11) a position corresponding to the cutting groove (20), wherein: the cartridge case (11) is pushed sipes (18) is mounted with a cutting blade (21), the staple cartridge housing (11) at the proximal end of arcuate chute (23), and the cutting knife (21) has an arcuate projection (25), said cartridge (9) prior to use, the cutting blade (21) arcuate projection (25) inserted in the cartridge housing (11) arc chute (23), the cutting knife (21) cutting edge (29) located in the cartridge housing (11) push sipes (18); cartridge (9), in use, the slide bar (8) at the proximal end of the cartridge (9) is moved distally, the first slide bar (8) push cutter blade (21), and the cutting blade (21) arcuate projections (25) from the staple cartridge housing (11) Release of the arcuate chute (23), the cutting knife (21) cutting edge (29 ) extending from within the cartridge casing (11) is pushed sipes (18), and the slide bar (8) pushing the cutting blade (21) pushing the staple cartridge housing sipe (11)
Moving (18), pushing the staple slide (13) by virtue of its inclined surfaces push the staple pushing block (12) moves within the staple pushing holes (16) the staple (14) out of the nail groove (15).
2, according to claim 1 having a replaceable staple cartridge endoscopic surgical cutting stapler, wherein: the cartridge case (11) at the proximal end of the arcuate chute (23) located in the staple cartridge housing at both sides of the proximal end (11), said cutting blade (21) arcuate projections (25) on both sides of the cutting blade (21).
3, the endoscopic surgical staple with replaceable cartridge according to claim 2, said cutting stapler, comprising: elastic stoppers (24 arcuate inner chute (23) of the cartridge case (11) ); an elastic stopper (24) of the cutting blade (21) arcuate projection (25) is approximately; ½ staple cartridge housing (11) arc chute (23).
4, according to claim replaceable staple cartridge with endoscopic surgical cutting stapler, characterized in that said 1: the cutting knife (21) at the distal end with a recess (26), the staple pushing sled (13) at the proximal end with a projection (27), the groove (26) of the cutting knife (21) is embedded in the staple pushing slide (13) of the projection (27) is formed partially pivotal connection.
5, according to claim 1 having a replaceable staple cartridge endoscopic surgical cutting stapler, wherein: (11) embedded at the proximal end of the insert (22), the arc-shaped slide staple cartridge housing the groove (23) located within the insert (22).
6, according to claim 1 having a replaceable staple cartridge endoscopic surgical stapler or cutter of claim 3 or 4, wherein: the slide bar (8) at the distal end with a projection (30), when when the slide bar (8) at the proximal end moves from the distal end of the cartridge (11), the projection (30) of said cutting blade (21) back to the staple cartridge
A proximal end (11) at.
7, according to claim 1 having a replaceable staple cartridge endoscopic surgical cutting stapler, wherein: the arc chute (23) has an elastic flap (36), said resilient flap (36 ) the arc chute (23) into the proximal end of the arcuate chute (23-1) and a distal arc chute (23-2); the cartridge prior to use, the cutting knife (21 ) arcuate projections (25) are inserted in the insert (22) proximal arcuate chute (23-1), the cutting knife (21) cutting edge (29) located in said cartridge housing (11 ) push sipe
(18), insert (22) of the arcuate chute elastic baffle (36) inside (23) of the cutting blade (21) arcuate projection (25) is constrained near the insert (22) end of the arcuate chute (23-1) therein; cartridge (9), in use, the slide bar (8) from the proximal end of the cartridge (9) at the distal movement, the first push cutter blade (21 ), the resilient arcuate chute baffle plate (23) (36) elastically deformable under pressing action of the cutting blade (21) arcuate projections (25) so that the convex curved cutting blade (21) block (25) is pushed out from the insert (22) proximal arcuate chute (23-1), the cutting knife (21) cutting edge (29) from the staple cartridge housing (11) is pushed sipe (18 ) projecting inside, and the slide bar (8) pushing the cutting blade (21) moves within the cartridge case (11) is pushed sipes (18), while the elastic baffle (36) the resilient insert (22) the proximal end of the arcuate chute (23-1) is sealed; from the distal end of the slider when the cartridge (9) is moved to the proximal end (8), the slide bar (8) first cutter blade (21) with back to the cartridge (9) at the proximal end, and then the pressing action of the cutting blade (21) arcuate projection (25) of the arcuate chute (23 ) Resilient flap (36) is elastically deformed, so that the cutting blade (21) arcuate projection (25) into the distal end of the arcuate chute insert) of (23-2, so that the cutting blade (21) the inner edge (29) located in the staple cartridge housing (11) is pushed sipes (18), while the elastic arcuate chute baffle plate (23) (36) rebound cutting knife (21) arcuate projection (25) confined within the insert (22) of the distal end of the arcuate chute (23-2).
8, according to claim stapler with replaceable cutting endoscopic surgical staple cartridge of claim 8, wherein: when said cutting blade arcuate protrusion (21) (25) is about; the staple ½ cartridge housing (11) within the distal end of the arc chute (23-2), the cutting blade angle is less than 45. .
9, according to claim 1 having a replaceable staple cartridge endoscopic surgical cutting stapler, wherein: the distal end of the cartridge housing (11) has a resilient hook (31) and the side projections (32), performing the frame (7) at the distal end side has a recess (33), the cartridge housing (11) at the distal end of the resilient hook
(31) and the bottom bracket at the distal end of the execution (7) consisting of a detachable locking structure; when the cartridge (9) is mounted to the upper bracket performed (7), the staple cartridge housing (11) distal at the side of the bump (33) is inserted into the holder performs (7) at the distal end side grooves (33), the staple cartridge constraint in the implementation of frame (7) moves back and forth direction, the staple cartridge housing (11) at the distal end elastic hook (31) after snap elastically deformed at the bottom of the distal end of the frame is performed (7), the staple cartridge constraint performs carriage moving direction (7) in the vertical direction; and when the cartridge (9) from the execution holder (7) detached is drawn inside, the elastic hook (31) at the distal end of the staple cartridge housing (n) from the elastic deformation of the base frame performed at the distal end (7), that the cartridge (8) performed from frame (7).
10, according to claim replaceable staple cartridge with endoscopic surgical cutting stapler, characterized in that said 1: mounting a bottom of the cartridge housing (11) having a bottom cover (35), said bottom cover ( 35) on both sides on both sides of each snap staple cartridge housing (11).
PCT/CN2010/079796 2010-09-28 2010-12-15 Endoscopic surgical cutting stapler with replaceable staple cartridge WO2012040984A1 (en)

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CN201010293670.9 2010-09-28
CN2010102936709A CN101966093B (en) 2010-09-28 2010-09-28 Cavity mirror surgical incision anastomat with replaceable nail bin

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US10163589B2 (en) 2014-06-26 2018-12-25 Covidien Lp Adapter assemblies for interconnecting surgical loading units and handle assemblies
US9839425B2 (en) 2014-06-26 2017-12-12 Covidien Lp Adapter assembly for interconnecting electromechanical surgical devices and surgical loading units, and surgical systems thereof
US10098637B2 (en) 2014-06-26 2018-10-16 Covidien Lp Adapter assembly for interconnecting electromechanical surgical devices and surgical loading units, and surgical systems thereof
US10271840B2 (en) 2014-08-19 2019-04-30 Covidien Lp Apparatus and method for differentiating between tissue and mechanical obstruction in a surgical instrument
US10226254B2 (en) 2014-10-21 2019-03-12 Covidien Lp Adapter, extension, and connector assemblies for surgical devices
US9949737B2 (en) 2014-10-22 2018-04-24 Covidien Lp Adapter assemblies for interconnecting surgical loading units and handle assemblies
US10085750B2 (en) 2014-10-22 2018-10-02 Covidien Lp Adapter with fire rod J-hook lockout
JP2018502628A (en) * 2014-12-30 2018-02-01 タッチストーン インターナショナル メディカル サイエンス カンパニーリミテッドTouchstone International Medical Science Co., Ltd. Medical stapler to use staple cartridge unit and the staple cartridge unit
US10111665B2 (en) 2015-02-19 2018-10-30 Covidien Lp Electromechanical surgical systems
US10190888B2 (en) 2015-03-11 2019-01-29 Covidien Lp Surgical stapling instruments with linear position assembly
US10226239B2 (en) 2015-04-10 2019-03-12 Covidien Lp Adapter assembly with gimbal for interconnecting electromechanical surgical devices and surgical loading units, and surgical systems thereof
US10253847B2 (en) 2015-12-22 2019-04-09 Covidien Lp Electromechanical surgical devices with single motor drives and adapter assemblies therfor

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CN101966093A (en) 2011-02-09

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