CN116473606A - Anastomat assembly and anastomat - Google Patents
Anastomat assembly and anastomat Download PDFInfo
- Publication number
- CN116473606A CN116473606A CN202211268327.8A CN202211268327A CN116473606A CN 116473606 A CN116473606 A CN 116473606A CN 202211268327 A CN202211268327 A CN 202211268327A CN 116473606 A CN116473606 A CN 116473606A
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- anvil
- fixing piece
- nail
- nail bin
- cartridge
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- Granted
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- 238000003780 insertion Methods 0.000 claims description 31
- 230000037431 insertion Effects 0.000 claims description 31
- 230000000903 blocking effect Effects 0.000 claims description 17
- 230000005489 elastic deformation Effects 0.000 claims description 5
- 210000001519 tissue Anatomy 0.000 description 21
- 230000000740 bleeding effect Effects 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 6
- 230000008439 repair process Effects 0.000 description 6
- 239000012620 biological material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000001727 in vivo Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 210000004876 tela submucosa Anatomy 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 229920000954 Polyglycolide Polymers 0.000 description 2
- 230000003872 anastomosis Effects 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 210000000936 intestine Anatomy 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 210000000496 pancreas Anatomy 0.000 description 2
- 239000004633 polyglycolic acid Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 210000000813 small intestine Anatomy 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 210000002784 stomach Anatomy 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000017423 tissue regeneration Effects 0.000 description 2
- 206010050456 Anastomotic leak Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 208000034158 bleeding Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000282 nail Anatomy 0.000 description 1
- 210000003516 pericardium Anatomy 0.000 description 1
- 210000004303 peritoneum Anatomy 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000037390 scarring Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003932 urinary bladder Anatomy 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
- 230000009278 visceral effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The application proposes a stapler assembly and a stapler, the stapler assembly comprising: the nail bin assembly and the nail anvil assembly can be rotationally connected, the nail bin assembly comprises a nail bin main body, a nail bin fixing piece and a nail bin biological patch, the nail bin fixing piece can be movably connected to the nail bin main body along the length direction of the nail bin main body, the nail bin fixing piece can move between a first position of the nail bin fixing piece and a second position of the nail bin fixing piece, the nail bin fixing piece is connected to the nail bin main body at the first position of the nail bin fixing piece and the second position of the nail bin fixing piece, the nail bin fixing piece is in the state of the first position of the nail bin fixing piece, the front end of the nail bin biological patch is connected to the nail bin main body by the nail bin fixing piece, and the front end of the nail bin biological patch can be separated from the nail bin main body by the nail bin fixing piece in the state of the second position of the nail bin fixing piece.
Description
Technical Field
The application belongs to the field of medical instruments, and particularly relates to an anastomat assembly and an anastomat.
Background
The application of the anastomat can greatly promote the development of modern surgery and minimally invasive surgery, and has the significance of milestones. The anastomat can staple tissues through the anastomat during cutting, and is widely used for cutting, suturing and anastomosis of visceral tissues such as intestines, stomach, lung, pancreas and the like. However, the defects, leakage and bleeding of the tissue of the anastomotic stoma cannot be completely avoided by combining the hard nails of the anastomotic nail, and the problems of infection, stenosis, scarring and the like can be caused. Once complications such as anastomotic leakage, bleeding, stenosis, infection, adhesion and the like occur, secondary surgery may be required to solve, seriously affecting the quality of life of the patient, and even endangering life, causing serious economic and psychological burden to the patient.
To reduce post-anastomosis complications, one possible stapler has a reinforcement repair patch. The nail bin and the nail anvil surface of the anastomat are both provided with a layer of absorbable reinforcing material, and the reinforcing material is fixed on the anastomat while finishing the nailing and cutting, so that fragile tissues are protected from being torn by the anastomat, or gaps between bare nails and tissues or blood vessels are closed, thereby reinforcing the anastomat and reducing the risks of complications such as anastomat leakage and bleeding.
In the prior art, the reinforcing repair sheet of the anastomotic stoma is a sleeve-like structure comprising a biomaterial layer, a backing layer, and a wire detachably fixing the biomaterial layer and the backing layer. The sleeve-shaped structure of the anastomat reinforcing repair sheet is sleeved on the nail bin part and the nail anvil part of the nail bin assembly of the anastomat. After the reinforcing patch is secured to the tissue to be treated, the backing may be removed by removing the wires, and releasing the securing between the reinforcing patch and the backing.
However, the structure of the reinforcing repair sheet is complicated by fixing the biological material layer and the backing layer by the wires, and special placement and fixation are needed to ensure that the wires are not knotted or confused, so that the process steps in the process of manufacturing the product are increased, and the production efficiency and the yield of the product are affected. And in the operation process, special operations are required to be carried out on the wire rod, including positioning, traction and removal of the wire rod, and great care is required in the operation process, so that misoperation caused by wire hanging and scratch is avoided.
Disclosure of Invention
The application aims at providing an anastomat assembly, which has the advantages of simple structure, high production efficiency and high product yield.
Embodiments of the present application provide a stapler assembly, comprising: a nail bin assembly and a nail anvil assembly, wherein the nail bin assembly and the nail anvil assembly can be rotationally connected,
the nail bin assembly comprises a nail bin main body, a nail bin fixing piece and a nail bin biological patch,
the nail bin fixing piece can be movably connected with the nail bin main body along the length direction of the nail bin main body, the nail bin fixing piece can move between a first position of the nail bin fixing piece and a second position of the nail bin fixing piece, the nail bin fixing piece is connected with the nail bin main body at the first position of the nail bin fixing piece and the second position of the nail bin fixing piece,
the nail bin fixing piece is in a state of the first position of the nail bin fixing piece, the nail bin fixing piece connects the front end part of the nail bin biological patch with the nail bin main body,
the cartridge holder enables the forward end of the cartridge biological patch to be separated from the cartridge body in a state in which the cartridge holder is in the second position of the cartridge holder.
Embodiments of the present application also provide a stapler assembly, comprising: a nail bin assembly and a nail anvil assembly, wherein the nail bin assembly and the nail anvil assembly can be rotationally connected,
the nail anvil component comprises a nail anvil main body, a nail anvil fixing piece and a nail anvil biological patch,
the nail anvil fixing piece can be movably connected with the nail anvil main body along the length direction of the nail anvil main body, the nail anvil fixing piece can move between a first position of the nail anvil fixing piece and a second position of the nail anvil fixing piece, the nail anvil fixing piece is connected with the nail anvil main body at the first position of the nail anvil fixing piece and the second position of the nail anvil fixing piece,
the anvil fixing piece is in a state of the first position of the anvil fixing piece, the anvil fixing piece connects the front end part of the anvil biological patch with the anvil main body,
the anvil retainer is configured to enable the forward end of the anvil biologic patch to be separated from the anvil body with the anvil retainer in the second position of the anvil retainer.
In at least one possible embodiment, the cartridge holder comprises a cartridge insertion projection, the front end of the cartridge biological patch is provided with a cartridge biological patch insertion hole,
the nail bin fixing piece is positioned at the first position of the nail bin fixing piece, the nail bin inserting convex part is inserted into the nail bin biological patch inserting hole, so that the front end part of the nail bin biological patch is connected with the nail bin main body,
the nail bin fixing piece is positioned at the second position of the nail bin fixing piece, and the nail bin inserting convex part is withdrawn out of the nail bin biological patch inserting hole, so that the nail bin biological patch and the nail bin main body can be separated.
In at least one possible embodiment, the cartridge holder includes a cartridge holder spring retention portion,
the elastic retaining part of the nail bin fixing piece is kept in the original state or slightly deformed in the state that the nail bin fixing piece is positioned at the first position of the nail bin fixing piece,
the cartridge holder is in a state in which the cartridge holder is in the second position, and the cartridge holder elastic holding portion is pressed to be elastically deformed or further elastically deformed.
In at least one possible embodiment, the anvil retainer includes an anvil retainer spring retainer,
the elastic holding part of the nail anvil fixing piece is abutted against the nail anvil main body under the state that the nail anvil fixing piece is positioned at the first position of the nail anvil fixing piece, thereby preventing the nail anvil fixing piece from moving forwards,
the anvil fixing member is in a state of being in the second position of the anvil fixing member, and the anvil fixing member elastic holding portion is pressed to generate elastic deformation.
In at least one possible embodiment, the anvil retainer includes a check portion, the anvil body includes a blocking portion,
the non-return part is pressed and deformed by the blocking part when the nail anvil fixing piece is positioned at the first position of the nail anvil fixing piece,
the blocking portion is configured to block movement of the anvil fastener from the anvil fastener second position to the anvil fastener first position when the anvil fastener is in the anvil fastener second position.
In at least one possible embodiment, the cartridge body is provided with a cartridge catch, the rear end of the cartridge biological patch is provided with a cartridge biological patch socket hole, the cartridge catch is bent back and hooks the cartridge biological patch socket hole, and/or
The nail anvil main body is provided with a nail anvil clamping hook, the rear end part of the nail anvil biological patch is provided with a nail anvil biological patch sleeving hole, and the nail anvil clamping hook is bent backwards and hooked on the nail anvil biological patch sleeving hole.
In at least one possible embodiment, the anvil body has a cavity, the front end of the anvil body is provided with an anvil fastener mounting slot for mounting the anvil fastener, and a portion of the anvil fastener passes through the anvil fastener mounting slot and is received in the cavity.
In at least one possible embodiment, the stapler assembly further comprises a cutting assembly, which is housed in the cartridge assembly and the anvil assembly,
the cartridge holder and the anvil holder are capable of being urged to move synchronously by the cutting assembly,
when the nail anvil fixing piece is positioned at the first position of the nail anvil fixing piece, the nail bin fixing piece is also positioned at the first position of the nail bin fixing piece,
when the anvil fastener is in the anvil fastener second position, the cartridge fastener is also in the cartridge fastener second position.
Embodiments of the present application further provide a stapler including a stapler assembly according to any one of the above technical solutions.
Through adopting above-mentioned technical scheme, through the front end connection of nail storehouse biological patch in the nail storehouse main part of nail storehouse mounting, perhaps through the front end connection of nail anvil biological patch in the nail anvil main part of nail anvil mounting, make the simple structure of anastomat subassembly, production efficiency and product yield are higher to the easy operation of anastomat.
Drawings
Fig. 1 shows a schematic structural view of a stapler assembly according to an embodiment of the present application.
Fig. 2 shows an exploded view of a stapler assembly according to an embodiment of the present application.
Fig. 3 shows a schematic structural view of a cartridge assembly of a stapler assembly according to an embodiment of the present application.
Fig. 4 and 5 illustrate a schematic structural view of a cartridge body of a stapler assembly according to an embodiment of the present application.
Fig. 6 illustrates a partial enlarged view of a cartridge bio-patch and cartridge body of a stapler assembly according to an embodiment of the present application.
Fig. 7 and 9 illustrate partial structural schematic views of a cartridge mount of a stapler assembly according to an embodiment of the present application in a first position.
Fig. 8 and 10 illustrate partial structural schematic views of a cartridge mount of a stapler assembly according to an embodiment of the present application in a second position.
Fig. 11 and 12 illustrate a schematic structural view of a cartridge mount of a stapler assembly according to an embodiment of the present application.
Fig. 13 shows a schematic structural view of an anvil assembly of a stapler assembly according to an embodiment of the present application.
Fig. 14, 16 and 17 illustrate partial structural schematic views of an anvil retainer of a stapler assembly according to an embodiment of the present application in a first position.
Fig. 15 and 18 illustrate partial structural schematic views of an anvil retainer of a stapler assembly in a second position, according to an embodiment of the present application.
Fig. 19 shows a schematic structural view of an anvil body and anvil biologic patch of a stapler assembly according to an embodiment of the present application.
Fig. 20 and 21 illustrate schematic structural views of an anvil retainer of a stapler assembly according to an embodiment of the present application.
Fig. 22 shows a partial schematic structural view of an anvil body of a stapler assembly according to an embodiment of the present application.
Description of the reference numerals
100 cartridge assembly 200 anvil assembly
1 nail bin main body 11 nail bin clamping hook 12 nail bin fixing piece mounting groove 13 limit part 14 nail bin inserting groove 15 inclined plane
2 nail bin fixing piece 21 nail bin fixing piece inserting connection part 22 nail bin fixing piece surface part 221 nail bin inserting connection convex part 23 nail bin fixing piece elastic holding part
3 biological patch of nail storehouse 31 biological patch spliced eye 32 biological patch cup joints hole of nail storehouse
4 blocking part of cavity 45 of anvil fixing piece mounting groove 44 of anvil inserting groove 43 and anvil clamping hook 42 of anvil main body 41
5 anvil fastener 51 anvil fastener plug 52 anvil fastener elastic retention 53 check 54 anvil fastener body
6 biological patch of nail anvil 61 nail anvil biological patch spliced eye 62 nail anvil biological patch cup joint hole
7 slide block
8 cutting knife
X front-rear direction Y width direction Z thickness direction
Detailed Description
To more clearly illustrate the above objects, features and advantages of the present application, specific embodiments of the present application are described in detail in this section in conjunction with the accompanying drawings. The present application can be embodied in other different forms besides the embodiments described in this section, and those skilled in the art may make corresponding modifications, variations, and substitutions without departing from the spirit of the application, so that the application is not limited to the specific examples disclosed in this section. The protection scope of the present application shall be subject to the claims.
As shown in fig. 1-22, embodiments of the present application provide a stapler including a stapler assembly, which may be positioned at a front end of the stapler, and a handle, which may be positioned at a rear end of the stapler. The anastomat assembly can clamp the tissues of viscera such as intestines, stomach, lung, pancreas and the like so as to cut, suture and anastomose. The stapler assembly includes a cartridge assembly 100 and an anvil assembly 200, and the cartridge assembly 100 and the anvil assembly 200 are rotatably coupled such that the cartridge assembly 100 and the anvil assembly 200 can be opened or closed. The stapler assembly further comprises a cutting assembly comprising a cutting knife 8 and a slider 7. Cartridge assembly 100 may house staples and sled 7, and forward movement of sled 7 may fire the staples. The slide block 7 can move forward unidirectionally to fire the staples, and the staple supporting frame which is positioned behind the slide block 7 and supports the staples can block the slide block 7, so that the slide block 7 cannot retreat.
When the anastomat is triggered, the nail bin assembly 100 and the nail anvil assembly 200 are closed, the trigger rod can move forwards to push the cutting assembly in the nail bin assembly 100 to cut tissues, the cutting assembly is driven to drive the sliding block 7 in the cutting assembly to move forwards, the sliding block 7 can trigger the anastomat in the nail bin assembly 100, and the nail legs of the anastomat can pass through the tissues to be pressed and deformed on the nail anvil assembly 200, so that the wound surface is closed to stop bleeding.
The cross section of the cutter 8 may be "I" shaped, and the upper and lower portions of the cutter 8 may be received in the anvil assembly 200 and cartridge assembly 100, respectively, and the upper and lower portions of the cutter 8 may be connected to the middle portion of the cutter 8, which may include a blade or blade for cutting tissue.
(staple cartridge Assembly)
As shown in fig. 1-11, cartridge assembly 100 includes cartridge body 1, cartridge fasteners 2, cartridge biological patch 3, and sled 7. The cartridge body 1 is adapted to receive staples and a sled 7, the front side of the sled 7 being provided with a wedge surface which can push out the staples in the cartridge body 1. The cartridge holder 2 may be slidably connected to a front end portion of the cartridge body 1 in the front-rear direction X with respect to the cartridge body 1, and front and rear ends of the cartridge bio-patch 3 are connected to the cartridge body 1.
As shown in fig. 6 to 10, the front end of the cartridge biological patch 3 is provided with a cartridge biological patch insertion hole 31, and the rear end of the cartridge biological patch 3 is provided with a cartridge biological patch insertion hole 32.
As shown in fig. 6, the rear portion of the cartridge body 1 is provided with a cartridge hook 11, the cartridge hook 11 may be bent to the rear side to hook a cartridge biological patch socket hole 32 of the rear end of the cartridge biological patch 3, and the rear end of the cartridge biological patch 3 may be connected to the cartridge body 1 through the cartridge hook 11. The cartridge catch 11 may comprise two separate parts, between which the blade or blade of the cutting assembly may pass, cutting the cartridge biological patch 3 from the middle, allowing the cartridge catch 11 to be easily separated from the cut cartridge biological patch 6.
As shown in fig. 4, 5, 7 and 8, the front end of the cartridge body 1 may be formed with a cartridge holder mounting groove 12 for mounting the cartridge holder 2, and the cartridge holder mounting groove 12 may extend in the front-rear direction X such that the cartridge holder may slide in the front-rear direction X along the cartridge holder mounting groove 12.
The front end of the nail bin main body 1 is also provided with a limiting part 13, the limiting part 13 can be plate-shaped, and the limiting part 13 can be at least partially embedded into the nail bin fixing piece 2, so that the limiting part 13 can limit the movement of the nail bin fixing piece 2 along the thickness direction Z of the nail bin fixing piece.
The cartridge body 1 is provided with a cartridge insertion groove 14, and the cartridge insertion groove 14 may be located at the rear side in the front-rear direction X of the cartridge fastener mounting groove 12. The cartridge insertion groove 14 can accommodate a cartridge insertion projection 221 of the cartridge holder 2, which will be described later.
The surface of the cartridge body 1 facing the cartridge biological patch 3 may be provided with a boss, the length of which may be smaller than that of the cartridge biological patch 3, and the front and rear end positions of the cartridge biological patch 3 may be located at edge positions of the boss and may be bent toward the cartridge body 1. The cartridge insertion slot 14 may be located at a front edge of the boss, further, a chamfer may be formed at a front side of the boss, and the cartridge insertion slot 14 may be located at the chamfer.
As shown in fig. 5, a surface of the cartridge body 1 facing the cartridge holder elastic holding portion 23 described later is a slope 15, and the slope 15 can guide the cartridge holder elastic holding portion 23 to deform when the cartridge holder 2 moves forward with respect to the cartridge body 1.
As shown in fig. 7 to 12, the cartridge holder 2 includes a cartridge holder insertion portion 21, a cartridge holder surface portion 22, and a cartridge holder elastic holding portion 23.
The cartridge holder insertion portion 21 and the cartridge holder surface portion 22 may be fixedly connected, and the cartridge holder elastic holding portion 23 may be connected to the cartridge holder insertion portion 21.
The cartridge holder insertion portion 21 and the cartridge holder mounting groove 12 have the same cross-sectional shape, so that the cartridge holder 2 can slide in the front-rear direction X of the cartridge main body 1. The cartridge holder 2 is movable between a first position (or "cartridge holder first position") and a second position (or "cartridge holder second position"), and the cartridge holder elastic holding portion 23 allows the cartridge holder 2 to be connected to the cartridge body 1 in both the first position and the second position.
As shown in fig. 7 to 10, the slider 7 moves to the front end of the cartridge body 1 and continues to move forward, so that the cartridge holder 2 can be pushed to move the cartridge holder 2 from the first position to the second position.
The cartridge holder surface portion 22 may be located on a surface of the cartridge body 1 facing the anvil assembly 200, and the spacing portion 13 may be sandwiched between the cartridge holder surface portion 22 and the cartridge holder plug portion 21.
The cartridge inserting convex portion 221 is provided at the rear side of the cartridge fixing member surface portion 22, and the cartridge inserting convex portion 221 can protrude from the cartridge fixing member surface portion 22 to the rear side.
As shown in fig. 7 and 9, in a state in which the cartridge holder 2 is in the first position, the cartridge insertion projection 221 may be at least partially inserted into the cartridge biological patch insertion hole 31 and the cartridge insertion groove 14, so that the front end of the cartridge biological patch 3 is connected to the cartridge main body 1.
The cartridge holder elastic holding portion 23 may abut against the inclined surface 15 of the cartridge body 1, so that the cartridge holder 2 cannot freely move forward, and the cartridge holder 2 may be held in the first position, so that the front end of the cartridge biological patch 3 is connected to the cartridge body 1. The cartridge holder elastic holding portion 23 may be kept as it is or slightly deformed in a state where the cartridge holder 2 is in the first position.
As shown in fig. 8 and 10, in a state in which the cartridge holder 2 is in the second position, the cartridge insertion projection 221 can be withdrawn from the cartridge biological patch insertion hole 31 and the cartridge insertion groove 14, and the cartridge biological patch 3 and the cartridge main body 1 can be separated. In the state where the cartridge holder 2 is in the second position, the cartridge holder elastic holding portion 23 is pressed to be elastically deformed or further elastically deformed.
The sliding block 7 which can only move unidirectionally can prevent the nail cartridge fixing piece 2 from returning to the first position from the second position, so that the nail cartridge inserting convex part 221 is prevented from being inserted into the nail cartridge biological patch inserting hole 31 again, and the nail cartridge biological patch 3 cannot be separated from the nail cartridge main body 1.
As shown in fig. 7 and 8, the cartridge holder elastic holding portion 23 may be deformed by the external force applied by the slider 7, and the cartridge holder elastic holding portion 23 of the cartridge holder 2 may catch the inclined surface 15 of the cartridge body 1, making it difficult for the cartridge holder 2 to move forward all the way and the cartridge body 1 to be disengaged.
(anvil assembly)
As shown in fig. 1, 2, and 13-22, anvil assembly 200 includes anvil body 4, anvil retainer 5, and anvil biologic patch 6. When the anastomat is triggered, the anastomat can pass through the nail bin biological patch 3 and the nail anvil biological patch 6 to be propped against the nail anvil main body 4 to be extruded and deformed, and the wound surface is closed to stop bleeding. The front and rear ends of the nail anvil biological patch 6 are connected with the nail anvil main body 4. The anvil retainer 5 may be coupled to the front end of the anvil body 4, and the anvil retainer 5 may be positioned on the front side of the anvil biological patch 6, with the front end of the anvil biological patch 6 coupled to the anvil body 4 by the anvil retainer 5.
As shown in fig. 15 and 19, the front end of the anvil biological patch 6 is provided with an anvil biological patch insertion hole 61, and the rear end of the anvil biological patch 6 is provided with an anvil biological patch insertion hole 62.
As shown in fig. 13 and 19, the rear portion of the anvil main body 4 is provided with an anvil hook 41, the anvil hook 41 may be bent to hook the anvil biological patch socket hole 62 at the rear end of the anvil biological patch 6 to the rear side, and the rear end of the anvil biological patch 6 may be connected to the anvil main body 4 through the anvil hook 41. The anvil hook 41 may include two spaced apart portions between which a blade or blade of the cutting assembly may pass to scratch the anvil biologic patch 6 from the middle, allowing the anvil hook 41 to be easily separated from the severed anvil biologic patch 6.
As shown in fig. 14 to 18 and 22, the front end of the anvil main body 4 may be formed with an anvil-fixing-piece mounting groove 43 for mounting the anvil fixing piece 5, and the anvil-fixing-piece mounting groove 43 may extend in the front-rear direction X so that the anvil fixing piece 5 may slide in the front-rear direction X along the anvil-fixing-piece mounting groove.
The anvil body 4 may be formed with a cavity 44 and the anvil retainer mounting slot 43 may extend through a front sidewall of the cavity 44 such that a portion of the anvil retainer 5 is received in the cavity 44.
As shown in fig. 15, the anvil main body 4 is provided with an anvil insertion groove 42, and the anvil insertion groove 42 can accommodate an anvil holder insertion portion 51 of the anvil holder 5, which will be described later.
Further, the surface of the anvil main body 4 facing the anvil biological patch 6 may be provided with a boss, the length of which may be smaller than that of the anvil biological patch 6, and the front and rear ends of the anvil biological patch 6 may be bent toward the anvil main body 4 at edge positions of the boss. The anvil mating groove 42 may be located at the front edge of the boss, and further, the front side of the boss may be chamfered, and the anvil mating groove 42 may be located at the chamfer.
As shown in fig. 16 to 18, the cavity 44 of the anvil body 4 may be provided with blocking portions 45, the blocking portions 45 may be provided in two, the blocking portions 45 may be provided at two opposite side walls of the cavity 44, respectively, and the blocking portions 45 may be spaced apart in the width direction Y of the anvil body 4. The portion of the anvil retainer 5 in the cavity 44 is located between two stops 45, the stops 45 being in contact engagement with the anvil retainer 5.
As shown in fig. 14 to 21, the anvil holder 5 includes an anvil holder insertion portion 51, an anvil holder elastic holding portion 52, a check portion 53, and an anvil holder main body 54.
The anvil fixing member inserting portion 51 may protrude from the anvil fixing member main body 54 to the rear side so as to facilitate insertion into the anvil bio-patch inserting hole 61 and the anvil inserting groove 42, and in a state where the anvil fixing member 5 is in the first position, the anvil fixing member inserting portion 51 may be inserted into the anvil bio-patch inserting hole 61 and the anvil inserting groove 42.
The anvil retainer elastic retaining portion 52 may be connected to the anvil retainer body 54 and the anvil retainer elastic retaining portion 52 may extend forward from the anvil retainer body 54. During insertion of the anvil fastener 5 into the anvil fastener mounting groove 43 of the anvil main body 4, the anvil fastener elastic holding portion 52 may be compressed in the thickness direction Z thereof, and the anvil fastener 5 may be completely passed out of the anvil fastener mounting groove 43 to release deformation in a state in which the anvil fastener 5 is mounted to the anvil main body 4 and the anvil fastener 5 is in the first position.
The check portion 53 may be connected to the anvil fixing body 54, and the check portion 53 may be provided in two, and the two check portions 53 may extend from the anvil fixing body 54 to both sides in the width direction Y thereof. The check portions 53 are elastically deformed by being pressed, so that the distance between the two check portions 53 is narrowed. During insertion of the anvil fastener 5 into the anvil fastener mounting groove 43 of the anvil main body 4, the check portion 53 may be compressed in the width direction Y thereof, and in a state in which the anvil fastener 5 is mounted to the anvil main body 4 and the anvil fastener 5 is in the first position, the check portion 53 may be blocked by the blocking portion 45 to be in a compressed state.
The anvil fixing member elastic holding portion 52 and the check portion 53 can be elastically deformed and then passed through the anvil fixing member mounting groove 43 to mount the anvil fixing member 5 to the anvil main body 4. The anvil fixing elastic holding portion 52 may abut against the wall of the cavity 44, thereby preventing the separation of the anvil fixing 5 and the anvil main body 4, and the anvil fixing 5 may be attached to the anvil main body 4 in both a first position (or anvil fixing first position) described later and a second position (or anvil fixing second position) described later.
As shown in fig. 14, 16 and 17, in a state in which the anvil fixing member 5 is in the first position, the check portion 53 is engaged with the blocking portion 45, and the check portion 53 can be elastically deformed by being pressed by the blocking portion 45. The anvil holder elastic holding portion 52 can abut against the front side wall of the cavity 44 so that the anvil holder 5 does not move forward when not subjected to an external force.
During the forward movement of the anvil holder 5 from the first position to the second position, the anvil holder 5 may be pushed by the cutting assembly and the anvil holder elastic holding portion 52 may be elastically deformed but still abut against the front side wall of the cavity 44, so that the anvil holder 5 cannot exit the cavity 44 and the anvil holder 5 cannot be separated from the anvil body 4.
In the second position of the anvil fixing member 5, as shown in fig. 15 and 18, the check portion 53 is not pressed any more after passing the blocking portion 45, so that the blocking portion 45 can block the backward movement of the check portion 53. This prevents the anvil retainer 5 from being retracted from the second position to the first position, and further prevents the anvil retainer plug-in portion 51 from being reinserted into the anvil biologic patch plug-in hole 61, such that the anvil biologic patch 6 cannot be disengaged from the anvil body 4.
Under the linkage action of the cutting assembly, the nail anvil fixing piece 5 and the nail bin fixing piece 2 can be triggered to synchronously move, the nail bin fixing piece 2 is also located at the first position when the nail anvil fixing piece 5 is located at the first position, and the nail bin fixing piece 2 is also located at the second position when the nail anvil fixing piece 5 is located at the second position.
The nail bin biological patch 3 and the nail anvil biological patch 6 are in-vivo degradable high polymer materials or in-vivo degradable biological materials. The polymer material may include polypropylene, polylactic acid (PLA), polyglycolic acid (PGA) or polylactic-glycolic acid (PLGA), and has good compatibility with tissues. The in vivo degradable biomaterial comprises an immunogen-removing treated dermal matrix, pericardium, peritoneum, urinary bladder submucosa or small intestine submucosa, preferably comprises a decellularized small intestine submucosa matrix material.
The cartridge biological patch 3 and the anvil biological patch 6 can be used for various soft tissue repair clinical operations. After the anastomat is fired, the nail bin biological patch 3 and the nail anvil biological patch 6 can be fixed on the tissue by the anastomat, the nail bin biological patch 3 and the nail anvil biological patch 6 can actively induce cells to grow in, so that in-vivo degradation and tissue regeneration are realized, replacement repair in the traditional operation is updated into regeneration repair, the effect of protecting the tissue from being torn by the anastomat and closing gaps between bare nails and the tissue or blood vessels is achieved, the risk of postoperative complications is reduced, a patient can get better rehabilitation after the operation, and the postoperative life quality of the patient is improved.
The anastomat assembly is connected with the nail bin biological patch 3 and the nail anvil biological patch 6, and has simple structure, high production efficiency and high product yield. After the cutting assembly cuts the tissue, the cartridge biological patch 3 and the anvil biological patch 6 can be easily detached without complex operations, avoiding, for example, wire hooking or snagging the tissue, which presents a risk to the operation.
The operation of the stapler is described below.
Cartridge assembly 100 and anvil assembly 200 clamp the tissue to be cut, the stapler fires, forward movement of the cutting assembly can cut the tissue and push sled 7 to fire the staples, and the cutting assembly can scratch cartridge biological patch 3 and anvil biological patch 6 from the middle. And the slide block 7 can fire the anastomat to pass through the tissue and be pressed and deformed on the nail anvil assembly 200, and the wound surface is closed to stop bleeding. When the nail bin biological patch 3 and the nail anvil biological patch 6 are scratched by the cutting assembly, the nail bin clamping hook 11 can be easily separated from the nail bin biological patch sleeving hole 32, and the nail anvil clamping hook 41 can be easily separated from the nail anvil biological patch sleeving hole 62. As the cutting assembly moves the sled 7 forward, the cartridge biological patch 3 and anvil biological patch 6 may be stapled to tissue. The sliding block 7 pushes the nail bin fixing piece 2 to enable the nail bin inserting convex part 221 to withdraw from the nail bin biological patch inserting hole 31 to enable the front end of the nail bin biological patch 3 to be separated from the nail bin main body 1, the cutting assembly pushes the nail anvil fixing piece 5 to enable the nail anvil fixing piece inserting part 51 to withdraw from the nail anvil biological patch inserting hole 61 to enable the front end of the nail anvil biological patch 6 to be separated from the nail anvil main body 4. Whereby the cartridge biological patch 3 and anvil biological patch 6 stapled to the tissue are disengaged from the stapler.
The present application will be described in detail using the above embodiments, but the following description will be made.
(I) In the above-described embodiments, cartridge assembly 100 includes cartridge biological patch 3 and anvil assembly 200 includes anvil biological patch 6, however the present application is not so limited. The cartridge assembly and anvil assembly may include only one of the biological patches, i.e., the cartridge assembly includes a cartridge biological patch or the anvil assembly includes an anvil biological patch.
(II) the front side wall of cavity 44 may define a chamfer or an arcuate surface that facilitates guiding the elastic deformation of anvil retainer 52 during movement of the anvil retainer from the first position to the second position.
It is to be understood that in the present application, when the number of parts or members is not particularly limited, the number may be one or more, and the number herein refers to two or more. For the case where the number of parts or members is shown in the drawings and/or described in the specification as a specific number such as two, three, four, etc., the specific number is generally illustrative and not restrictive, it may be understood that a plurality, i.e., two or more, but this does not mean that the present application excludes one.
In this application, unless explicitly stated or limited otherwise, terms such as "mounted," "assembled," "connected," "coupled," "joined," "abutting," "communicating," "conducting," "fixed," "fastened," and the like are to be construed broadly, as they may be, for example, direct or indirect. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other, or may interact with each other, unless explicitly stated or limited otherwise. For example, the communication/conduction may be direct communication/conduction or indirect communication/conduction via an intermediate medium. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In the present application, unless explicitly stated or defined otherwise, one member is provided/mounted/located/housed/placed in/within another member, inside, etc., may be either of the following two cases: a portion or a majority of the one member is located within the other member; and the one member is fully received within the other member.
While the present application has been described in detail using the above embodiments, it will be apparent to those skilled in the art that the present application is not limited to the embodiments described in the present specification. The present application can be modified and implemented as a modified embodiment without departing from the spirit and scope of the present application as defined by the claims. Accordingly, the descriptions in this specification are for purposes of illustration and are not intended to be limiting in any way.
Claims (10)
1. A stapler assembly, comprising: a staple cartridge assembly (100) and an anvil assembly (200), said staple cartridge assembly (100) and said anvil assembly (200) being rotatably connected, characterized in that,
the nail bin assembly (100) comprises a nail bin main body (1), a nail bin fixing piece (2) and a nail bin biological patch (3),
the nail bin fixing piece (2) can be movably connected with the nail bin main body (1) along the length direction (X) of the nail bin main body (1), the nail bin fixing piece (2) can move between a first position of the nail bin fixing piece and a second position of the nail bin fixing piece, the nail bin fixing piece (2) is connected with the nail bin main body (1) at the first position of the nail bin fixing piece and the second position of the nail bin fixing piece,
the nail bin fixing piece (2) is in the state of the first position of the nail bin fixing piece, the front end part of the nail bin biological patch (3) is connected with the nail bin main body (1) by the nail bin fixing piece (2),
the cartridge holder (2) is in a state of being in the second position of the cartridge holder, and the cartridge holder (2) enables the front end portion of the cartridge biological patch (3) to be separated from the cartridge main body (1).
2. A stapler assembly, comprising: a staple cartridge assembly (100) and an anvil assembly (200), said staple cartridge assembly (100) and said anvil assembly (200) being rotatably connected, characterized in that,
the nail anvil component (200) comprises a nail anvil main body (4), a nail anvil fixing piece (5) and a nail anvil biological patch (6),
the nail anvil fixing piece (5) can be movably connected with the nail anvil main body (4) along the length direction (X) of the nail anvil main body (4), the nail anvil fixing piece (5) can move between a first position of the nail anvil fixing piece and a second position of the nail anvil fixing piece, the nail anvil fixing piece (5) is connected with the nail anvil main body (4) at the first position of the nail anvil fixing piece and the second position of the nail anvil fixing piece,
the nail anvil fixing piece (5) is in the state of the first position of the nail anvil fixing piece, the nail anvil fixing piece (5) connects the front end part of the nail anvil biological patch (6) with the nail anvil main body (4),
the anvil fixing piece (5) is in a state of the second position of the anvil fixing piece, and the anvil fixing piece (5) enables the front end part of the anvil biological patch (6) to be separated from the anvil main body (4).
3. The anastomat assembly according to claim 1, wherein said cartridge holder (2) comprises cartridge insertion projections (221), said cartridge biological patch (3) being provided at its front end with cartridge biological patch insertion holes (31),
the nail bin fixing piece (2) is positioned at the first position of the nail bin fixing piece, the nail bin inserting convex part (221) is inserted into the nail bin biological patch inserting hole (31) so that the front end part of the nail bin biological patch (3) is connected with the nail bin main body (1),
the nail bin fixing piece (2) is located in the second position of the nail bin fixing piece, and the nail bin inserting convex part (221) is withdrawn out of the nail bin biological patch inserting hole (31), so that the nail bin biological patch (3) and the nail bin main body (1) can be separated.
4. The stapler assembly according to claim 1, wherein the cartridge holder (2) comprises a cartridge holder elastic holding portion (23),
the elastic retaining part (23) of the nail bin fixing piece is kept in the original state or slightly deformed in the state that the nail bin fixing piece (2) is positioned at the first position of the nail bin fixing piece,
the elastic holding part (23) of the nail bin fixing piece is extruded to generate elastic deformation or further elastic deformation under the state that the nail bin fixing piece (2) is positioned at the second position of the nail bin fixing piece.
5. Stapler assembly according to claim 2, wherein the anvil holder (5) comprises an anvil holder elastic holding portion (52),
the anvil fixing member (5) is in a state of being in a first position of the anvil fixing member, the anvil fixing member elastic holding portion (52) abuts against the anvil main body (4) to thereby hinder the forward movement of the anvil fixing member (5),
the anvil fixing member (5) is in a state of being in the second position of the anvil fixing member, and the anvil fixing member elastic holding portion (52) is pressed to generate elastic deformation.
6. Stapler assembly according to claim 2, wherein the anvil holder (5) comprises a non-return portion, the anvil body (4) comprises a blocking portion,
the non-return part is extruded and deformed by the blocking part when the nail anvil fixing piece (5) is positioned at the first position of the nail anvil fixing piece,
the non-return part moves to the front side of the blocking part in a state that the nail anvil fixing piece (5) is positioned at the second position of the nail anvil fixing piece, so that the blocking part can prevent the nail anvil fixing piece (5) from moving from the second position of the nail anvil fixing piece to the first position of the nail anvil fixing piece.
7. The stapler assembly according to claim 1 or 2, wherein,
the nail bin main body (1) is provided with a nail bin clamping hook (11), the rear end part of the nail bin biological patch (3) is provided with a nail bin biological patch sleeving hole (32), the nail bin clamping hook (11) is backwards bent and hooked on the nail bin biological patch sleeving hole (32), and/or
The nail anvil main body (4) is provided with a nail anvil clamping hook (41), the rear end part of the nail anvil biological patch (6) is provided with a nail anvil biological patch sleeving hole (62), and the nail anvil clamping hook (41) is bent backwards and hooks the nail anvil biological patch sleeving hole (62).
8. Stapler assembly according to claim 2, wherein the anvil body (4) has a cavity (44), the front end of the anvil body (4) being provided with an anvil-holder mounting slot (43) for mounting the anvil holder (5), a portion of the anvil holder (5) passing through the anvil-holder mounting slot (43) and being accommodated in the cavity (44).
9. The stapler assembly according to claim 1 or 2, wherein said stapler assembly further comprises a cutting assembly housed in said cartridge assembly (100) and said anvil assembly (200),
the nail bin fixing piece (2) and the nail anvil fixing piece (5) can be pushed by the cutting assembly to synchronously move,
when the nail anvil fixing piece (5) is positioned at the first position of the nail anvil fixing piece, the nail bin fixing piece (2) is also positioned at the first position of the nail bin fixing piece,
when the nail anvil fixing piece (5) is positioned at the second position of the nail anvil fixing piece, the nail bin fixing piece (2) is also positioned at the second position of the nail bin fixing piece.
10. A stapler, characterized in that it comprises a stapler assembly according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211268327.8A CN116473606B (en) | 2022-10-17 | 2022-10-17 | Anastomat assembly and anastomat |
| PCT/CN2022/141306 WO2023236505A1 (en) | 2022-10-17 | 2022-12-23 | Surgical stapler assembly and surgical stapler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211268327.8A CN116473606B (en) | 2022-10-17 | 2022-10-17 | Anastomat assembly and anastomat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116473606A true CN116473606A (en) | 2023-07-25 |
| CN116473606B CN116473606B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211268327.8A Active CN116473606B (en) | 2022-10-17 | 2022-10-17 | Anastomat assembly and anastomat |
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| CN (1) | CN116473606B (en) |
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| CN116473606B (en) | 2024-01-23 |
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