CN109316218B - Surgical anastomat and nail bin assembly thereof - Google Patents
Surgical anastomat and nail bin assembly thereof Download PDFInfo
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- CN109316218B CN109316218B CN201811320463.0A CN201811320463A CN109316218B CN 109316218 B CN109316218 B CN 109316218B CN 201811320463 A CN201811320463 A CN 201811320463A CN 109316218 B CN109316218 B CN 109316218B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical 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
- A61B17/07207—Surgical 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical 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
- A61B2017/07214—Stapler heads
- A61B2017/07257—Stapler heads characterised by its anvil
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical 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
- A61B2017/07214—Stapler heads
- A61B2017/07271—Stapler heads characterised by its cartridge
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical 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
- A61B2017/07214—Stapler heads
- A61B2017/07285—Stapler heads characterised by its cutter
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Abstract
The invention discloses a surgical anastomat and a nail bin assembly thereof, wherein the nail bin assembly comprises a nail bin, a fastening bracket, a first tissue reinforcing gasket and/or a second tissue reinforcing gasket, the fastening bracket is detachably fixed on the nail bin and comprises a first fastening bracket, a second fastening bracket and a connecting part for connecting the first fastening bracket and the second fastening bracket, and under the action of external force, the first fastening bracket and/or the second fastening bracket elastically change an included angle around the connecting part, so that the first fastening bracket detachably fixes the first tissue reinforcing gasket on a nail anvil tissue contact surface along the long axis direction of the first tissue reinforcing gasket, and/or the second fastening bracket detachably fixes the second tissue reinforcing gasket on a nail bin tissue contact surface along the long axis direction of the second tissue reinforcing gasket. The operation is convenient, the safety is high, the cost is low, and meanwhile, the tissue reinforcing gasket can be accurately positioned when the anastomat works, and the problems of displacement, falling off and side turning over are avoided.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a surgical anastomat and a nail bin assembly thereof.
Background
The surgical anastomat is a mechanical suturing instrument used for replacing the traditional manual suturing in medicine, compared with the traditional manual suturing technology, the mechanical suturing anastomat has the advantages of small tissue reaction, neat arrangement of the suturing nails and equal intervals, and effectively avoids the problems of over-dense manual suturing and over-loose ligation; meanwhile, the anastomat for mechanical suturing is simple and convenient to operate, and the operation time of a doctor can be greatly shortened.
However, the suturing nail used by the anastomat is usually made of metal materials such as titanium and the like, is hard in texture, has poor mechanical compatibility when being used for suturing soft tissues, is easy to cause mechanical injury to fragile soft tissues, and is easy to cause phenomena such as leakage, bleeding and fistula of a suturing opening. Aiming at the problem of complications caused by inherent defects of the anastomat, the reinforcement of the anastomosis part by additionally arranging a reinforcement gasket between the anastomat and the tissue is one of the simplest and most effective methods at present clinically. The gasket can play a role of a liner for the tissues of a patient, strengthen the tensile strength of local tissues, improve the sealing performance of an anastomotic stoma and prevent the anastomotic stoma from leaking; the tissue cutting by the staples can be reduced, and the fracture and bleeding of the anastomotic stoma can be prevented; the local pressure of the anastomotic stoma can be balanced, and anastomotic fistula and stenosis caused by local blood circulation unsmooth due to stress concentration are avoided. There are particular difficulties associated with attaching releasable gasket material to the jaw members of a stapler. Due to the complex environment within the body, the gasket material must be securely affixed to the jaw members of the stapler so that it does not fall off or become dislodged during normal operation, and must be readily removable from the stapler after the staples are fired.
In the traditional mode that holes are formed in the tissue contact surface of the nail bin/nail anvil, the gasket is extruded in the holes by external force and is fixed by the roughness of the holes, and the gasket is difficult to separate or is particularly easy to separate from the tissue contact surface due to the fact that the external force is not easy to control; the gasket is sleeved on the two sides of the anastomat and then sewn on the tissue contact surface by using a sewing line, and the gasket is separated by manually removing stitches after the anastomosis is finished, so that the gasket is easy to slide and inaccurate in positioning, and the gasket is separated by manually removing stitches after the gasket is anastomosed, and the gasket cannot be normally separated if the operation is improper; the mode of only fixing the front point and the rear point of the gasket easily causes the sliding and the displacement of the gasket in the matching process, thereby causing the problems of displacement, falling off and side turning over of the gasket. Therefore, it is desirable to provide a new method for fixing a pad of a stapler and a stapler using the same to solve the above problems.
Disclosure of Invention
The invention mainly solves the technical problem of providing a surgical anastomat and a nail bin assembly thereof, which have the advantages of convenient operation, high safety, low cost and capability of ensuring that a tissue reinforcing gasket is accurately positioned and does not shift, fall off or laterally turn when the anastomat works.
In order to solve the technical problems, the invention adopts a technical scheme that: providing a staple cartridge assembly comprising:
a nail bin defined with a first end and a second end;
the fastening support is detachably fixed on the nail bin and comprises a first fastening support, a second fastening support and a connecting part, and the first fastening support and the second fastening support are connected through the connecting part; and
a first and/or second tissue-reinforcing spacer defining a first end and a second end;
wherein, under the influence of external force, the first fastening bracket and/or the second fastening bracket elastically change the included angle around the connecting part, so that the first fastening bracket detachably fixes the first tissue reinforcing gasket on the tissue contact surface of the nail anvil along the long axis direction of the first tissue reinforcing gasket and/or the second fastening bracket detachably fixes the second tissue reinforcing gasket on the tissue contact surface of the nail anvil along the long axis direction of the second tissue reinforcing gasket.
In order to solve the technical problem, the invention adopts another technical scheme that: a hinge portion is arranged at the outer side of the first end of the nail bin, the connecting portion is hinged to the hinge portion, when an external force towards the other one of the first fastening bracket or the second fastening bracket is applied, the connecting portion is taken as a fulcrum under the limitation of the hinge portion, and the first fastening bracket and the second fastening bracket elastically change an included angle around the connecting portion to generate torsion so as to fix the first tissue reinforcing gasket on the tissue contact surface of the nail bin and/or fix the second tissue reinforcing gasket on the tissue contact surface of the nail bin along the long axis direction of the second tissue reinforcing gasket.
In order to solve the technical problem, the invention adopts another technical scheme that: the utility model provides a nail storehouse subassembly, articulated portion is the projection in the two outsides of nail storehouse first end, first tight support of deciding includes two parallel arrangement's first leg, the second is tight to decide the support and is included two parallel arrangement's second leg, first leg one end form behind the torsional spring with second leg one end is connected or behind the second leg formation torsional spring with first leg is connected, the torsional spring is regarded as connecting portion cover is in on the projection.
In order to solve the technical problem, the invention adopts another technical scheme that: providing a cartridge assembly, said first tissue enhancing spacer having a receptacle along a side of said major axis, said first leg being inserted into said receptacle; and/or
The second leg presses against the second tissue reinforcing pad in a direction along the long axis of the second tissue reinforcing pad.
In order to solve the technical problem, the invention adopts another technical scheme that: providing a staple cartridge assembly, said second inter-leg distance being less than said first inter-leg distance; the second leg is provided with a protruding portion, the first tissue reinforcing gasket corresponds to the protruding portion and is provided with a groove, and the protruding portion is inserted into the groove to prevent the first fastening support and the second fastening support from relative displacement during cutting.
In order to solve the technical problem, the invention adopts another technical scheme that: the fastening support is provided with a bending part, the bending part and one end, far away from the connecting part, of the second leg are connected and buckled on the nail bin, and the second end of the second tissue reinforcing gasket is clamped on the tissue contact surface of the nail bin.
In order to solve the technical problem, the invention adopts another technical scheme that: the tissue reinforcing gasket is arranged on the tissue contact surface of the nail bin, and when the cutting knife moves towards the limiting block to cut the tissue reinforcing gasket, the limiting block moves to an unlocking position from a locking position, so that the limiting block releases the clamping of the bending part.
In order to solve the technical problem, the invention adopts another technical scheme that: providing a nail bin assembly, wherein the limiting block is provided with a base, a top and two side walls;
the top extends out from the upper end of the base and is bent towards the direction opposite to the advancing direction of the cutting knife to form a clamping groove for accommodating the bent part;
the base is provided with a nail abutting seat guide groove extending from the bottom surface of the base to the top;
the two side walls extend out from one side of the base towards the nail bin and abut against the side face, close to the first end of the nail bin, of the groove in the direction opposite to the advancing direction of the cutting knife;
the bending part is in a hollow U shape, and the hollow U shape is matched with the clamping groove; or the bending part is in an integral U shape, a concave hole is formed in the U-shaped surface, and a protrusion which extends towards the bending part and is matched with the concave hole is arranged at the top of the bending part.
In order to solve the technical problem, the invention adopts another technical scheme that: a staple cartridge assembly is provided, wherein the first tissue reinforcing pad and/or the second tissue reinforcing pad are provided with cutting knife guide grooves along the long axis direction.
In order to solve the technical problem, the surgical stapler adopted by the invention comprises an anvil block and a staple cartridge base opposite to the staple abutting seat assembly, wherein any one of the staple cartridge assemblies is arranged on the staple cartridge base.
The invention has the beneficial effects that: in the surgical stapler and the cartridge assembly thereof, the fastening bracket detachably fixed on the cartridge comprises a first fastening bracket, a second fastening bracket and a connecting part for connecting the first fastening bracket and the second fastening bracket, and the first fastening bracket and/or the second fastening bracket elastically change an included angle around the connecting part under the action of external force, so that the first fastening bracket detachably fixes the first tissue reinforcing gasket on the tissue contact surface of the anvil along the long axis direction of the first tissue reinforcing gasket and/or the second fastening bracket detachably fixes the second tissue reinforcing gasket on the tissue contact surface of the cartridge along the long axis direction of the second tissue reinforcing gasket. The positioning device is convenient to operate, high in safety and low in cost, and can ensure that the tissue reinforcing gasket is accurately positioned without the problems of displacement, falling off and side turning over when the anastomat works.
Drawings
FIG. 1 is a schematic view of a surgical stapler of the invention in a closed state;
FIG. 2 is a schematic view of an open state of one embodiment of the surgical stapler of the present invention;
FIG. 3 is an exploded view of one embodiment of the surgical stapler of the present invention;
FIG. 4 is a perspective view of one embodiment of a staple cartridge assembly of the present invention;
FIG. 5 is an exploded view of one embodiment of a staple cartridge assembly of the present invention;
FIG. 6 is a perspective view of one embodiment of the tightening bracket of the present invention;
FIG. 7 is a perspective view of one embodiment of the tissue-enhancing spacer of the present invention;
FIG. 8 is a perspective view of one embodiment of a stop block of the present invention;
FIG. 9 is an enlarged partial view of a second end of one embodiment of a staple cartridge in the staple cartridge assembly of the present invention;
FIG. 10 is a perspective view of one embodiment of a surgical stapler drive assembly incorporating a cutting blade in accordance with the present invention.
Detailed Description
In order to make the purpose, technical solution and effect of the present application clearer and clearer, the present application is further described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 3, a surgical stapler of the present invention includes a nail anvil 1, a nail cartridge assembly 2, a nail cartridge base assembly 3, a first locking lever housing 4 and a second locking lever housing 5; the nail anvil 1 is provided with a locking trunnion 11, the second locking bar shell 5 is provided with a bulge 51, the nail bin base component 3 is provided with a nail bin base 31, a driving component 32 and a groove 33, and the first locking bar shell 4 is provided with a clamping groove 41.
The nail bin assembly 2 is arranged on a nail bin base 31 of the nail bin base assembly 3, and the nail anvil 1 and the nail bin base assembly 3 provided with the nail bin assembly 2 are oppositely clamped and detachably separated through the first locking rod shell 4 and the second locking rod shell 5, so that the surgical anastomat can be switched between an opening state and a closing state.
Specifically, referring to fig. 3 in combination with fig. 1, when the surgical stapler of the present invention is in a closed state, the cartridge base assembly 3 is clamped into the first locking lever housing 4 in parallel, the second locking lever housing 5 is fixedly connected with the anvil 1 in parallel, the locking trunnion 11 on the anvil 1 is clamped into the slot 41 on the first locking lever 4, and the protrusion 51 on the second locking lever housing 5 is inserted into the groove 33 of the cartridge base assembly 3.
With continued reference to FIG. 3 in conjunction with FIG. 2, when the surgical stapler of the present invention is in an open state, as shown in the figure, the first locking lever housing 4 is rotated away from the cartridge holder assembly 3 to disengage the locking trunnion 11 on the anvil 1 from the notch 41 on the first locking lever 4, at this time, the protrusion 51 on the second locking lever housing 5 is also gradually disengaged from the groove 33 of the cartridge holder assembly 3 as the locking trunnion 11 is disengaged from the notch 41, and when the protrusion 51 on the second locking lever housing 5 is completely disengaged from the groove 33 of the cartridge holder assembly 3, the surgical stapler is fully opened, and at this time, the anvil 1 and the second locking lever housing 5 are completely separated from the cartridge assembly 2, the cartridge holder assembly 3, and the first locking lever housing 4. When the surgical stapler is in a fully opened state, after tissue is clamped between the anvil 1 and the cartridge module 2 and the protrusion 51 on the second locking lever shell 5 is inserted into the groove 33 of the cartridge holder assembly 3, the first locking lever shell 4 is rotated in a direction towards the cartridge holder assembly 3 so that the locking trunnion 11 on the anvil 1 is clamped into the clamping groove 41 on the first locking lever 4, and then the driving assembly 32 is driven to perform suture cutting.
Referring to fig. 4-7, a cartridge assembly 2 of the present invention comprises: a staple cartridge 21 defining first and second ends, a hold-down bracket 23, first and second tissue-enhancing spacers 25 and 24 defining first and second ends, and a cutting knife 22 moving between the first and second ends of the staple cartridge, the cutting knife 22 moving toward the second end as it moves toward its direction of travel; the first end of the nail bin 21 is the end of the nail bin facing the first locking rod shell 4, and the second end is the end far away from the first locking rod shell 4; first and second tissue enhancing spacers 25 and 24 are oppositely disposed, wherein the first tissue enhancing spacer 25 is disposed on the tissue contacting surface of the anvil 1 and/or the second tissue enhancing spacer 24 is disposed on the tissue contacting surface of the staple cartridge 21, wherein the first end of the first and second tissue enhancing spacers 25 and 24 is the end toward the first lock lever housing 4 and the second end is the end away from the first lock lever housing 4. Further, the nail bin 21 is provided with a hinge portion, in the embodiment, the hinge portion is a convex column 211; in addition, the nail bin 21 can be integrally formed or can be divided into a body 212 and a nail bin bottom cover 213 as shown in the figure, and the nail bin body 212 is arranged on the nail bin bottom cover 213; the fastening bracket 23 is detachably fixed on the nail bin 21, the fastening bracket 23 comprises a first fastening bracket 231, a second fastening bracket 233 and a connecting part 232, the connecting part 232 is hinged with the hinging part on the nail bin 21, and the first fastening bracket 231 and the second fastening bracket 233 are connected through the connecting part 232.
Specifically, the first tightening bracket 231 includes two first legs 2311 arranged in parallel, the second tightening bracket 233 includes two second legs 2331 arranged in parallel, one end of the first leg 2311 is connected with one end of the second leg 2331 after forming a torsion spring, or the second leg 2331 is connected with the first leg 2311 after forming a torsion spring, the torsion spring is sleeved on the convex column 211 as a connecting part 232, the torsion spring and the convex column 211 can be in interference fit, a groove is formed on the convex column 211, or one end of the convex column 211 far away from the nail bin 21 is provided with a nut, etc. to realize the positioning of the tightening bracket 23, in this embodiment, the tightening bracket 23 can be metal, plastic or an elastic part capable of storing energy and having a force applying arm. When the first and/or second clamping brackets 231, 233 are subjected to an external force, they elastically change their included angles around the connecting portion 232, so that the first clamping bracket 231 detachably fixes the first tissue-reinforcing spacer 25 on the tissue contact surface of the anvil 1 along the long axis direction of the first tissue-reinforcing spacer 25 and/or the second clamping bracket 233 detachably fixes the second tissue-reinforcing spacer 24 on the tissue contact surface of the staple cartridge along the long axis direction of the second tissue-reinforcing spacer 24. Specifically, when one of the first fastening bracket 231 or the second fastening bracket 233 is subjected to an external force toward the other, the first fastening bracket 231 and the second fastening bracket 233 elastically change their included angles around the connecting portion 232 to generate a torsion force to fix the first tissue-reinforcing spacer 25 on the tissue-contacting surface of the anvil 1 and/or fix the second tissue-reinforcing spacer 24 on the tissue-contacting surface of the staple cartridge 21 along the long axis direction of the second tissue-reinforcing spacer 24, under the restriction of the hinge portion, i.e., the protruding post 211, with the protruding post 211 as a fulcrum.
Further, the first and second tissue-enhancing spacers 25 and 24 can be attached together as shown, removably secured to the tissue-contacting surface of the anvil 1 or the tissue-contacting surface of the staple cartridge 21 by the clamping action of the first and second clamping brackets 231 and 233, or they can be separately provided without being attached together. Meanwhile, in the staple cartridge assembly 2 of the present invention, only the first tissue enhancement pad 25 or the second tissue enhancement pad 24 may be provided, that is, only the first tissue enhancement pad 25 may be detachably fixed on the tissue contact surface of the anvil 1 by the first fastening bracket 231 or only the second tissue enhancement pad 24 may be detachably fixed on the tissue contact surface of the staple cartridge by the second fastening bracket 233, which may be determined according to specific situations.
Referring to fig. 4 to fig. 7, in the magazine assembly 2 of the present invention, the first tissue-reinforcing spacer 25 has a hole 251 along the side of the longitudinal axis, and the second tissue-reinforcing spacer 24 has no hole along the longitudinal axis, when the magazine assembly 2 has the first tissue-reinforcing spacer 25 and the second tissue-reinforcing spacer 24, the first leg 2311 of the first fastening bracket 231 is inserted into the hole 251, and the second leg 2331 of the second fastening bracket 233 presses on the second tissue-reinforcing spacer 24 along the longitudinal axis of the second tissue-reinforcing spacer 24. When the cartridge assembly is provided with only the first tissue reinforcing spacer 25 or the second tissue reinforcing spacer 24, the corresponding first fastening bracket 231 or the corresponding second fastening bracket 233 may be used to fix the corresponding tissue reinforcing spacer in the detachable fixing manner. When the first leg 2311 of the first fastening bracket 231 is inserted into the insertion hole 251, the fastening bracket can be positioned accurately, and meanwhile, the insertion hole 251 can be arranged towards the outlet of the second end of the first tissue reinforcing gasket 25 in a sealing manner so as to further ensure the accuracy of the size and the position of the fastening bracket 23 which can penetrate.
Further, in order to prevent the relative displacement between the first tightening bracket 231 and the second tightening bracket 233, the distance between the second legs 2331 of the second tightening bracket 233 may be set to be smaller than the distance between the first legs 2311; and a protrusion 23311 is provided on the second leg 2331, and a groove 252 is provided at a position of the first tissue reinforcing pad 25 corresponding to the protrusion 23311, and the protrusion 23311 is inserted into the groove 252 at the time of cutting.
Further, the fastening bracket 23 may further include a bent portion 234, wherein the bent portion 234 is connected to an end of the second leg 2331 far from the connecting portion 232 and is fastened to a second end of the staple cartridge 21 for clamping a second end of the second tissue enhancement spacer 24 to the tissue contact surface of the staple cartridge 21 to prevent the second end of the second tissue enhancement spacer 24 from tilting. In this embodiment, the bending portion 234 is U-shaped and is integrally formed with the second leg 2331. Further, the first fastening bracket 231 and the second fastening bracket 233 may be formed by bending and winding an elastic strip. In addition, the first ends of the first and second tissue reinforcing spacers 25 and 24 may be fixed by the elastic pressing force at the junction of the first and second tightening brackets 231 and 233.
Further, the staple cartridge assembly 2 of the present invention further comprises a stopper 26, wherein the stopper 26 is disposed in the groove 214 of the staple cartridge 21 near the bending portion 234 and engages the bending portion 234 with the tissue contact surface of the staple cartridge 21, when the cutting knife moves towards the stopper 26 to cut the tissue enhancement pad until the stopper 26 is touched, the stopper 26 is pushed to move from the locking position to the unlocking position, so that the stopper 26 releases the engagement with the bending portion 234, and when the stopper 26 is in the locking position, the stopper 26 is flush with the tissue contact surface of the staple cartridge 21. Specifically, please refer to fig. 8 and 9, the stopper 26 has a base 263, a top 261 and two sidewalls 262; the top 261 extends from the upper end of the base 263 and bends toward the direction opposite to the advancing direction of the cutting blade 22 to form a slot 2611 for accommodating the bending portion 234; the two side walls 262 extend from the base 263 towards the first end of the nail bin 21 and abut against the side surface of the groove 214 close to the first end of the nail bin 21 in the direction opposite to the advancing direction of the cutting knife 22; more specifically, the two side walls 262 abut against two faces 2141 as shown in fig. 9. In this embodiment, the bending portion 234 may be a hollow U-shape, the hollow U-shape matches with the slot 2611, and the slot 2611 may be disposed on the top 261 to match with the entire hollow U-shape or only the slot 2611 as shown in the figure matches with the bottom of the U-shape. In addition, the bending part 234 can also be set to be a whole U shape, a concave hole is arranged on the U-shaped surface, and the top 261 is provided with a protrusion which extends out towards the bending part 234 and is matched with the concave hole.
Further, a staple abutting seat guide groove 2631 extending from the bottom surface of the base 263 toward the top 261 is further provided on the base 263 of the stopper 26, and when the staple abutting seat moves toward the second end of the magazine 21 and reaches the second end of the magazine 21, the staple abutting seat is engaged with the staple abutting seat guide groove 2631 on the base 263 of the stopper 26, and when the staple abutting seat further moves toward the second end of the magazine 21, the stopper 26 moves from the locking position to the unlocking position to release the engagement with the bent portion 234. Specifically, with reference to fig. 8 and fig. 9 in combination with fig. 10, the driving assembly 32 of the surgical stapler of the present invention includes a driving pushing block 321, a nail abutting seat 324 and a driving rod 322, wherein the driving pushing block 321 abuts against the nail abutting seat 324 and the driving rod 322, and the cutting knife 22 is hinged to the driving rod 322. When the surgical stapler of the present invention is in a closed state and the nail bin 21 and the anvil 1 clamp the tissue, the pushing block 321 is pushed to move towards the second end of the nail bin, and at this time, the cutting knife 22 and the nail abutting seat 324 move towards the second end of the nail bin 21, so that the cutting knife 22 cuts the tissue reinforcing spacers and the tissue therebetween from the middle position of the tissue reinforcing spacers, and in order to ensure that the cutting knife 22 cuts the tissue reinforcing spacers neatly and does not displace, the first tissue reinforcing spacer 25 and/or the second tissue reinforcing spacer 24 may further have cutting knife guide grooves 253 and 241 along the long axis direction thereof. At the same time, the curved distal end 3241 of the two nail seats 324 pushes the nails in the staple cartridge 21 to eject toward the anvil 1 for suturing the tissue and the tissue-strengthening spacers. When the arc-shaped distal end 3241 of the nail abutting seat 324 reaches the second end of the nail bin 21, the arc-shaped distal end 3241 of the nail abutting seat 324 extends out of the opening 2142 on the surface of the distal end groove 214 of the nail bin 21 facing the first end of the nail bin and extends into the nail abutting seat guide groove 2631 on the base 263 of the stopper 26, when the nail abutting seat 324 further moves towards the second end of the nail bin 21, the distal end 3241 of the nail abutting seat 324 drives the stopper 26 to move towards the second end of the nail bin 21, and the stopper 26 is disengaged from the locking position, and when the snap groove 2611 on the top 261 of the stopper 26 is completely disengaged from the bent portion 234, the snap fit on the bent portion 234 is released, that. At this point, the cutting and stapling is complete, and the surgical stapler is then fully opened and withdrawn from the tissue, thereby driving the retention bracket 23 secured to the cartridge assembly 2 to withdraw the tissue augmentation patch.
The invention relates to a surgical anastomat and a nail bin assembly thereof, wherein a fastening bracket which is detachably fixed on a nail bin comprises a first fastening bracket, a second fastening bracket and a connecting part for connecting the first fastening bracket and the second fastening bracket, and the first fastening bracket and/or the second fastening bracket elastically change an included angle around the connecting part under the action of an external force, so that the first fastening bracket detachably fixes a first tissue reinforcing gasket on a nail anvil tissue contact surface along the long axis direction of a first tissue reinforcing gasket and/or the second fastening bracket detachably fixes a second tissue reinforcing gasket on the nail bin tissue contact surface along the long axis direction of a second tissue reinforcing gasket. The positioning device is convenient to operate, high in safety and low in cost, and can ensure that the tissue reinforcing gasket is accurately positioned without the problems of displacement, falling off and side turning over when the anastomat works.
The above description is only an embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes performed by the content of the present specification and the attached drawings, or applied to other related technical fields directly or indirectly, are included in the scope of the present invention.
Claims (4)
1. A staple cartridge assembly, comprising:
a nail bin defined with a first end and a second end;
the fastening support is detachably fixed on the nail bin and comprises a first fastening support, a second fastening support and a connecting part, and the first fastening support and the second fastening support are connected through the connecting part; and
a first and/or second tissue-reinforcing spacer defining a first end and a second end;
the fastening support is metal, plastic or an elastic part capable of storing energy and provided with a force application arm;
wherein the first and/or second clamping brackets elastically change an included angle around the connecting portion under an external force, so that the first clamping bracket detachably fixes the first tissue reinforcing gasket on the tissue contact surface of the anvil along the long axis direction of the first tissue reinforcing gasket, and/or the second clamping bracket detachably fixes the second tissue reinforcing gasket on the tissue contact surface of the staple cartridge along the long axis direction of the second tissue reinforcing gasket;
the first fastening support comprises two first legs arranged in parallel, the second fastening support comprises two second legs arranged in parallel, one end of each first leg is connected with one end of each second leg after a torsion spring is formed, or the second legs are connected with the first legs after torsion springs are formed;
the first tissue enhancement gasket is provided with a jack along the side edge of the long shaft, and the first leg is inserted into the jack; and/or said second leg presses on said second tissue reinforcing spacer in the direction of the long axis of said second tissue reinforcing spacer;
a hinge part is arranged at the outer side of the first end of the nail bin, the connecting part is hinged to the hinge part, when one of the first fastening bracket or the second fastening bracket is subjected to an external force towards the other, the first fastening bracket and the second fastening bracket are limited by the hinge part and take the connecting part as a fulcrum, the first fastening bracket and the second fastening bracket elastically change an included angle around the connecting part to generate torsion so as to fix the first tissue reinforcing gasket on the tissue contact surface of the nail anvil and/or fix the second tissue reinforcing gasket on the tissue contact surface of the nail bin along the long axis direction of the second tissue reinforcing gasket;
the hinge part is a convex column at two outer sides of the first end of the nail bin, and the torsion spring is used as the connecting part and sleeved on the convex column;
the fastening support is provided with a bent part, the bent part is connected with one end of the second leg, which is far away from the connecting part, and is buckled on the second end of the nail bin, so that the second end of the second tissue reinforcing gasket is clamped on the tissue contact surface of the nail bin;
the tissue strengthening gasket is arranged on the tissue contact surface of the nail bin, and when the cutting knife moves towards the limiting block to cut the tissue strengthening gasket until the cutting knife touches the limiting block, the limiting block moves to an unlocking position from a locking position so that the limiting block releases the clamping on the bent part;
the limiting block is provided with a base, a top and two side walls; the top extends out from the upper end of the base and is bent towards the direction opposite to the advancing direction of the cutting knife to form a clamping groove for accommodating the bent part; the base is provided with a nail abutting seat guide groove extending from the bottom surface of the base to the top; the two side walls extend out from the base towards the first end of the nail bin and abut against the side face, close to the first end of the nail bin, of the groove in the direction opposite to the advancing direction of the cutting knife; the bending part is in a hollow U shape, and the hollow U shape is matched with the clamping groove; or the bending part is in an integral U shape, a concave hole is formed in the U-shaped surface, and a protrusion which extends towards the bending part and is matched with the concave hole is arranged at the top of the bending part.
2. The staple cartridge assembly of claim 1, wherein said second inter-leg distance is less than said first inter-leg distance; the second leg is provided with a protruding portion, the first tissue reinforcing gasket corresponds to the protruding portion and is provided with a groove, and the protruding portion is inserted into the groove to prevent the first fastening support and the second fastening support from relative displacement during cutting.
3. The staple cartridge assembly of claim 1, wherein said first tissue-enhancing spacer and/or said second tissue-enhancing spacer are provided with a cutting knife guide slot along a longitudinal axis thereof.
4. A surgical stapler comprising an anvil, a cartridge base opposite a staple holder assembly, wherein the cartridge assembly according to any of claims 1-3 is disposed on the cartridge base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811320463.0A CN109316218B (en) | 2018-11-07 | 2018-11-07 | Surgical anastomat and nail bin assembly thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811320463.0A CN109316218B (en) | 2018-11-07 | 2018-11-07 | Surgical anastomat and nail bin assembly thereof |
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| CN109316218A CN109316218A (en) | 2019-02-12 |
| CN109316218B true CN109316218B (en) | 2021-05-04 |
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| CN201811320463.0A Active CN109316218B (en) | 2018-11-07 | 2018-11-07 | Surgical anastomat and nail bin assembly thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11890014B2 (en) | 2020-02-14 | 2024-02-06 | Covidien Lp | Cartridge holder for surgical staples and having ridges in peripheral walls for gripping tissue |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022110249A1 (en) * | 2020-11-30 | 2022-06-02 | 苏州英途康医疗科技有限公司 | Stapler |
| CN114569176B (en) * | 2020-11-30 | 2023-10-10 | 苏州英途康医疗科技有限公司 | Anastomat |
| CN114451944B (en) * | 2022-02-09 | 2024-02-23 | 天津瑞奇外科器械股份有限公司 | Surgical instrument and nail bin assembly thereof |
| WO2023236505A1 (en) * | 2022-10-17 | 2023-12-14 | 北京博辉瑞进生物科技有限公司 | Surgical stapler assembly and surgical stapler |
| CN117679099B (en) * | 2024-01-05 | 2025-01-07 | 北京博辉瑞进生物科技有限公司 | Anvil assembly, staple assembly and stapler |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103860227A (en) * | 2012-12-13 | 2014-06-18 | 柯惠Lp公司 | Folded Buttress for Use with a Surgical Apparatus |
| CN107645930A (en) * | 2015-03-25 | 2018-01-30 | 伊西康有限责任公司 | Supporter is applied to the method for surgical stapling device |
| CN107802302A (en) * | 2017-10-16 | 2018-03-16 | 成都颐合恒瑞医疗科技有限公司 | A kind of operative anastomat device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7143925B2 (en) * | 2004-07-28 | 2006-12-05 | Ethicon Endo-Surgery, Inc. | Surgical instrument incorporating EAP blocking lockout mechanism |
| US7559937B2 (en) * | 2005-08-09 | 2009-07-14 | Towertech Research Group | Surgical fastener apparatus and reinforcing material |
-
2018
- 2018-11-07 CN CN201811320463.0A patent/CN109316218B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103860227A (en) * | 2012-12-13 | 2014-06-18 | 柯惠Lp公司 | Folded Buttress for Use with a Surgical Apparatus |
| CN107645930A (en) * | 2015-03-25 | 2018-01-30 | 伊西康有限责任公司 | Supporter is applied to the method for surgical stapling device |
| CN107802302A (en) * | 2017-10-16 | 2018-03-16 | 成都颐合恒瑞医疗科技有限公司 | A kind of operative anastomat device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11890014B2 (en) | 2020-02-14 | 2024-02-06 | Covidien Lp | Cartridge holder for surgical staples and having ridges in peripheral walls for gripping tissue |
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|---|---|
| CN109316218A (en) | 2019-02-12 |
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