CN107307891B - Purse-string suture cutting closer - Google Patents
Purse-string suture cutting closer Download PDFInfo
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- CN107307891B CN107307891B CN201710632271.2A CN201710632271A CN107307891B CN 107307891 B CN107307891 B CN 107307891B CN 201710632271 A CN201710632271 A CN 201710632271A CN 107307891 B CN107307891 B CN 107307891B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B2017/1142—Purse-string sutures
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Abstract
The invention provides a purse-string suture cutting closer, which belongs to the field of medical instruments for operations and comprises a shell, a clamp body and a cutting knife, wherein the clamp body comprises an upper clamp body and a lower clamp body, a knife pushing groove is formed in the upper clamp body and the lower clamp body, two groups of nail hole groups are formed in the lower clamp body, each group of nail hole groups comprises a plurality of nail holes arranged at intervals, titanium nails are placed in the nail holes, and a nail pusher is arranged in the lower clamp body; one group of nail hole groups in the two groups of nail hole groups on the lower clamp body are closed nail hole groups, the other group of nail hole groups are pouched nail hole groups, and pouched nail holes in the pouched nail hole groups form included angles with the push broach grooves; the side surface of the upper clamp body facing the lower clamp body is also provided with a group of pouch nail hole groups, and pouch nail anvil connecting frames are slidably arranged in the upper clamp body and the lower clamp body. The invention can cut the esophagus or small intestine to be anastomosed and sew the two ends of the cut two sections, wherein the sewing of one end is closed type sewing, and the sewing of the other end is purse type sewing.
Description
Technical Field
The invention relates to the field of medical instruments for operations, in particular to a purse-string suture cutting closer.
Background
In a laparoscopic gastric cancer resection operation, after a stomach is completely cut, the esophagus and the small intestine are required to be anastomosed, the treatment process relates to the cutting and suturing of the esophagus/the small intestine, the purse string suturing and the anastomosis treatment process of the esophagus and the small intestine, wherein in the prior art, the cutting and the suturing can be carried out by adopting a linear cutting closer or a linear cutting stapler, the purse string suturing can be carried out manually or by adopting a purse string forceps, the two processes are carried out separately in the prior art, the workload and the working difficulty of a doctor are increased to a certain extent, and therefore, in order to simplify the anastomosis treatment process of the esophagus and the small intestine, the invention aims to design the purse string suture cutting closer which can combine the cutting, the suturing and the purse string suturing.
Disclosure of Invention
In view of the above, there is a need for a purse string suture cutting closer which can cut the esophagus or small intestine to be anastomosed and suture the two ends of the cut two pieces, wherein the suture of one end is closed suture and the suture of the other end is purse string suture.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a purse string suture cutting closer for use with a firing device, comprising:
the shell is internally provided with a pushing piece connected with the firing device;
the clamp comprises a shell, a clamp body and a clamping head, wherein the clamp body is arranged at one end of the shell and comprises an upper clamp body and a lower clamp body which can be mutually opened or closed, a push cutter groove is formed in the upper clamp body and the lower clamp body along the length direction of the upper clamp body, two groups of nail hole groups are formed in the side surface, facing the upper clamp body, of the lower clamp body, the two groups of nail hole groups are respectively arranged on two opposite sides of the push cutter groove, each group of nail hole group comprises a plurality of nail holes arranged at intervals, titanium nails are placed in the nail holes, and a nail pusher for driving the titanium nails to be closed is arranged in the lower clamp body;
the cutting knife is arranged in the push knife groove in a sliding way and is connected with the nail pusher and the pushing piece;
in the two groups of nail hole groups on the lower clamp body, one group of nail hole groups are closed nail hole groups, the other group of nail hole groups are pouched nail hole groups, and pouched nail holes in the pouched nail hole groups form included angles with the push broach grooves;
a group of pouch nail hole groups are also formed in the side surface, facing the lower forceps body, of the upper forceps body, the pouch nail hole groups are arranged on one side of the cutter pushing groove, and a closed nail anvil matched with a closed nail hole in the lower forceps body is arranged on the other side of the cutter pushing groove; the upper clamp body is internally provided with the nail pusher;
the upper clamp body and the lower clamp body are both provided with a purse-string nail anvil connecting frame in a sliding manner, a plurality of groups of purse-string nail anvils are arranged on the purse-string nail anvil connecting frame at intervals, each group of purse-string nail anvils is matched with a purse-string nail hole for use, each group of purse-string nail anvil comprises two anvil parts which are respectively arranged at two ends of the purse-string nail hole, and each anvil part corresponds to one nail foot of a titanium nail when the titanium nail is nailed; the pouch nail anvil connecting frame is pushed by the cutting knife to slide, and each group of pouch nail anvils on the pouch nail anvil connecting frame is enabled to be staggered or overlapped with the corresponding pouch nail holes under the action of the cutting knife.
Furthermore, titanium nail plates are slidably mounted in the upper clamp body and the lower clamp body, a plurality of nail grooves are formed in one side face of each titanium nail plate at intervals, and the titanium nails in the purse-string nail holes are placed in the nail grooves.
Further, the titanium nail plates are all slidably mounted in the corresponding forceps bodies through springs.
Furthermore, the nail pusher for driving the titanium nails in the purse-string nail holes to be nailed is a pressure plate piece, the side surface of the pressure plate piece facing the titanium nail plate is an inclined surface, and the inclined surface inclines towards the side where the purse-string nail holes are located; when the cutting knife drives the pressing plate to move, the titanium nail plate pushes the titanium nails to move to the side where the pocket nail holes are located and to be nailed under the action of the inclined surface of the pressing plate.
Furthermore, each group of the purse-string nail hole groups consists of a row of purse-string nail holes which are arranged at intervals along the length direction of the forceps body.
Furthermore, the closed nail holes in the closed nail hole group are arranged in parallel with the cutter pushing grooves, and the included angle formed by the purse-string nail holes and the cutter pushing grooves is 90 degrees.
Further, when the purse-string nail anvil and the purse-string nail hole are arranged in a staggered manner, the purse-string nail anvil connecting frame does not shield the purse-string nail hole and does not contact the titanium nail.
Furthermore, one end of the pouch nail anvil connecting frame, which is far away from the shell, is provided with a convex structure, and the convex structure is positioned at the side of the cutter pushing groove and arranged towards the cutter pushing groove; the upper clamp body and the lower clamp body are both provided with trigger pieces in a sliding manner, and the trigger pieces are connected with the cutting knife and slide along with the cutting knife under the driving of the cutting knife; when the cutting knife moves to the end where the bulge structure is located, the trigger piece touches the bulge structure and pushes the bulge structure to move to enable the pouch nail anvil connecting frame to slide so as to enable the pouch nail anvil and the pouch nail hole to be staggered mutually.
Furthermore, a limiting groove is formed in one side face, contacting the titanium nail, of the purse-string nail anvil, and the limiting groove is arranged along the sliding direction of the titanium nail foot during the titanium nail nailing process.
Further, the purse string suture cutting closer further comprises a purse string suture; the purse-string suture line is connected with the upper forceps body and the lower forceps body simultaneously, traverses each purse-string nail hole and is positioned between two nail feet of the titanium nail in the purse-string nail hole; the purse-string suture is detachably connected with the upper forceps body and the lower forceps body.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention is an improvement on the basis of the existing linear cutting closer, which mainly aims at the part of a clamp body, in particular to an improvement on a nail hole group at two sides of a push broach slot on the clamp body, wherein the original closed type suturing structure at one side of the push broach slot is kept, namely, a closed nail hole is arranged on a lower clamp body, corresponding titanium nails, nail pushers and the like are arranged on the lower clamp body, a nail anvil matched with the closed nail hole of the lower clamp body is arranged on the upper clamp body, and a pouch nail hole is arranged on both the upper clamp body and the lower clamp body at the other side of the push broach slot, so that the pouch type suturing of esophagus/small intestine is realized through a bidirectional opening mode.
2. The purse-string suture cutting closer designed by the invention can realize the integrated operation of cutting closed suture and purse-string open suture, thus reducing the workload of doctors in the operation to a certain extent, saving the operation time of the doctors and having better practicability and convenience.
Drawings
FIG. 1 is a cross-sectional interior view of a purse string suture cutting closure of the invention.
FIG. 2 is a top view of the lower jaw body of the present invention.
FIG. 3 is a schematic view of the pouched anvil of FIG. 2 overlapping the pouched staple hole and partially seen through the interior of the pouched staple hole.
FIG. 4 is a perspective view of the purse-string anvil of FIG. 2 offset from the purse-string hole and the portion of the purse-string hole.
Fig. 5 is a partial inside view of the body portion of the caliper of fig. 1.
FIG. 6 is a schematic view of the purse-string anvil of FIG. 5 with one anvil removed.
Fig. 7 is an internal structural view of the side of the pouched nail hole in the directionbase:Sub>A-base:Sub>A in fig. 2 when the upper and lower jaw bodies are closed.
Fig. 8 is a schematic structural view of the upper caliper body portion of fig. 7.
Description of the main elements
In the figure: the device comprises a shell 1, a pushing piece 11, an upper clamp body 2, shells 21 and 31, a lower clamp body 3, a cutting knife 4, a knife pushing groove 41, a purse string suture 5, a closed nail hole 6, a purse string nail hole 7, a nail pusher 8, a nail pushing connecting piece 81, a titanium nail plate 9, a nail groove 91, a spring 92, a purse string nail connecting frame 10, a branch anvil 101, a convex structure 102, a trigger piece 20, a trigger connecting piece 201 and titanium nails 30.
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
Referring to FIGS. 1 and 2, in a preferred embodiment of the present invention, a purse-string suture cutting closure may be used with a firing device, which includes a housing 1, a body, a cutter 4 and a purse-string suture 5. The shell 1 is provided with a pushing piece 11 connected with the firing device, and one end of the pushing piece is provided with a clamp body. The forceps body comprises an upper forceps body 2 and a lower forceps body 3 which can be mutually opened or closed, and the upper forceps body 2 and the lower forceps body 3 are provided with a push-type incision 41 along the length direction; two groups of nail hole groups are arranged on the side surface of the lower clamp body 3 facing the upper clamp body 2, the two groups of nail hole groups are arranged on the two opposite sides of the cutter pushing groove 41, each group of nail hole groups comprises a plurality of nail holes arranged at intervals, titanium nails 30 are placed in the nail holes, and a nail pusher 8 for driving the titanium nails 30 to be nailed is arranged in the lower clamp body 3. The cutting knife 4 is slidably arranged in the push knife groove 41 and is connected with the nail pusher 8 and the pushing piece 11, the jaw is closed in the process that the pushing piece 11 is driven by the trigger device to move, the cutting knife 4 is driven by the pushing piece 11 to slide, and the esophagus/small intestine is cut or the nail pusher 8 is pushed to nail the titanium nails 30 on the esophagus/small intestine in the sliding process.
In the present invention, one of the two groups of nail holes on the lower clamp body 3 is a group of closed nail holes 6, the closed nail holes 6 in the group of closed nail holes 6 are arranged in parallel with the push-broach slot 41, and the other group of nail holes is a group of purse-string nail holes 7, the purse-string nail holes 7 in the group of purse-string nail holes 7 and the push-broach slot 41 form an included angle, that is, the purse-string nail holes 7 in the group of purse-string nail holes 7 and the closed nail holes 6 in the group of closed nail holes 6 form an angle, rather than the traditional parallel arrangement. In addition, the side surface of the upper forceps body 2 facing the lower forceps body 3 is also provided with a group of pouch nail holes 7, the group of pouch nail holes 7 is arranged at one side of the push broach slot 41, the other side of the push broach slot 41 is provided with a closed nail anvil matched with the closed nail hole 6 on the lower forceps body 3 for use, and meanwhile, the upper forceps body 2 is also internally provided with a nail pusher 8.
Referring to fig. 3-8, a purse-string anvil connecting frame 10 is slidably mounted in each of the upper and lower clamp bodies 2 and 3, a plurality of groups of purse-string anvils are arranged on the purse-string anvil connecting frame 10 at intervals, each group of purse-string anvils is used in cooperation with a purse-string nail hole 7, each group of purse-string anvils includes two anvil portions 101, the two anvil portions 101 are respectively arranged at two ends of the purse-string nail hole 7, and each anvil portion 101 corresponds to a nail foot of a titanium nail 30 when the titanium nail 30 is stapled; the purse-string nail anvil connecting frame 10 is pushed by the cutting knife 4 to slide, and under the action of the cutting knife 4, each group of purse-string nail anvils on the purse-string nail anvil connecting frame is enabled to be staggered or overlapped with the corresponding purse-string nail hole 7, so that the titanium nails 30 are enabled to abut against the branch anvil 101 and to be stapled with the esophagus/small intestine under the action of the branch anvil 101 through the overlapping of the purse-string nail anvils and the purse-string nail holes 7, or, the titanium nails 30 after being stapled are enabled to come out of the purse-string nail holes 7 without being blocked by the purse-string nail anvils through the staggering of the purse-string branch anvil 101 and the purse-string nail holes 7 and to be separated from the forceps body, and therefore the separation of the titanium nails 30 after being stapled with the titanium nails 30 from the forceps body is realized.
The purse-string suture 5 is connected with the upper forceps body 2 and the lower forceps body 3 simultaneously, traverses each purse-string nail hole 7 and is positioned between two nail feet of the titanium nail 30 in the purse-string nail hole 7, so that the purse-string suture 5 can be positioned between the titanium nail 30 and the esophagus/small intestine when the titanium nail 30 is sutured; preferably, the purse-string suture 5 is detachably connected with the upper forceps body 2 and the lower forceps body 3, so that the purse-string suture 5 is separated from the forceps bodies along with the titanium nail 30 after the cutting and suturing are finished.
In summary, the forceps body is partially improved on the basis of the traditional linear cutting closer, wherein an original closed suture structure is reserved on one side of the push broach slot 41, namely, a closed nail hole 6, a corresponding titanium nail 30, a corresponding nail pusher 8 and the like are arranged on the lower forceps body 3, a closed nail anvil matched with the closed nail hole 6 of the lower forceps body 3 is arranged on the upper forceps body 2, and the other side of the push broach slot 41 is improved into a state that the upper forceps body 2 and the lower forceps body 3 are respectively provided with a purse nail hole 7, so that the purse-string suture of the esophagus/small intestine is realized in a bidirectional opening manner; in addition, the purse-string suture 5 is arranged to make the purse-string suture end present a purse shape, which is convenient for the anastomosis treatment in the later period.
Further, referring to fig. 5 and 6, a titanium nail plate 9 is slidably mounted in each of the upper forceps body 2 and the lower forceps body 3, a plurality of nail grooves 91 are spaced on one side surface of the titanium nail plate 9, and the titanium nails 30 in the purse-string nail holes 7 are placed in the nail grooves 91, so that the titanium nails 30 are stably mounted in the forceps body through the arrangement of the titanium nail plate 9, and the titanium nails 30 are driven to be nailed by the nail pusher 8 in the later period. In the invention, the nail pusher 8 for driving the titanium nails 30 in the purse-string nail holes 7 to be nailed is a pressure plate part, the side surface of the pressure plate part facing the titanium nail plate 9 is an inclined surface which inclines towards the side of the purse-string nail holes 7; when the cutting knife 4 drives the pressing plate piece to move, the titanium nail plate 9 drives the titanium nail 30 to move towards the side where the pouch nail hole 7 is located and to nail under the action of the pressing plate piece inclined plane, namely, the pressing plate piece moves forwards along with the cutting knife 4 under the action of the pressing plate piece inclined plane, and the titanium nail plate 9 can move towards one side where the nail hole is located, so that the nailing of the titanium nail 30 is realized. Preferably, the titanium nail plate 9 of the invention is slidably mounted in the corresponding forceps body through the spring 92, so that after the pressure plate member is separated from the titanium nail plate 9 through the arrangement of the spring 92, the titanium nail plate 9 can automatically return to the position of the titanium nail plate 9 before the titanium nail 30 is stapled, and meanwhile, the separation of the titanium nail plate 9 and the titanium nail 30 is facilitated, so that the titanium nail 30 can be separated from the forceps body more easily in the later period.
Referring to fig. 7, the upper and lower clamp bodies 2 and 3 of the present invention each include a housing 21 and 31, and the pouch nail anvil connecting frame 10, the nail pusher 8, the titanium nail plate 9, and the like are accommodated in the housing 21 and 31, wherein the pouch nail anvil connecting frame 10 is located between the side surfaces of the titanium nail plate 9 and the pouch nail hole 7 and is close to the side surface of the pouch nail hole 7, and the spring 92 connected to the titanium nail plate 9 is also located between the side surfaces of the titanium nail plate 9 and the pouch nail hole 7 and simultaneously connects the side surfaces of the titanium nail plate 9 and the pouch nail hole 7.
In the embodiment, the groups of the purse nail holes 7 on the upper forceps body 2 and the lower forceps body 3 are both composed of a row of purse nail holes 7 arranged at intervals along the length direction of the forceps body, and the included angle formed by the purse nail holes 7 and the push broach groove 41 is preferably 90 degrees, that is, the purse nail holes 7, the push broach groove 41 and the closed nail holes 6 are all vertically arranged. In addition, when the purse nail hole 7 and the purse nail anvil are arranged in a staggered manner, the purse nail anvil connecting frame 10 does not shield the purse nail hole 7 and does not contact the titanium nail 30. Further, referring to fig. 2 or fig. 3, the purse-string anvil connecting frame 10 includes two connecting rods disposed in parallel and connected to each other, the two connecting rods are disposed at two ends of the purse-string nail hole 7, and the distance between the two connecting rods is not less than the length of the purse-string nail hole 7, and the purse-string anvil 101 is disposed between the two connecting rods. In addition, one end of the purse-string anvil connecting frame 10 away from the housing 1 is provided with a protrusion structure 102, and the protrusion is located at the side of the push knife slot 41 and is arranged toward the push knife slot 41; a trigger piece 20 is arranged in the upper clamp body 2 and the lower clamp body 3 in a sliding manner, and the trigger piece 20 is connected with the cutting knife 4 and slides along with the cutting knife 4 under the driving of the cutting knife 4; when the cutting knife 4 moves to the end of the convex structure 102, the trigger 20 touches the convex structure 102, and the purse-string anvil connecting frame 10 is forced to slide by pushing the convex structure 102 to move so as to make the purse-string anvil and the purse-string nail hole 7 mutually staggered. That is, the present invention sets the protrusion structure 102 as a contact structure for driving the sliding of the purse-string anvil connecting frame 10, and the trigger 20 is a trigger structure, which touches and drives the protrusion structure 102 to move along with the protrusion structure by the pushing of the cutting knife 4, so that the purse-string anvil connecting frame 10 slides, and the purse-string anvil meets the purse-string nail hole 7 in a staggered manner, which occurs after the cutting knife 4 finishes the feeding, the titanium nail 30 has been stapled, and the esophagus/small intestine has been cut, therefore, the protrusion structure 102 is preferably set at the end of the purse-string anvil connecting frame 10, and the trigger 20 is preferably set in the housing 21, 31, which is connected to the cutting knife 4 through a trigger connector 201 capable of penetrating the housing 21, 31, and similarly, the nail pusher 8 is also preferably connected to the cutting knife 4 through a nail pushing connector 81 capable of penetrating the housing 21, 31.
Further, in order to ensure that the titanium nails 30 move according to a predetermined track, a limiting groove is formed on one side surface of each group of the purse-string nail anvil contacting the titanium nails 30, and the limiting groove is arranged along the sliding direction of the legs of the titanium nails 30 when the titanium nails 30 are stapled, so that the moving range and the moving direction of the titanium nails 30 are limited by the arrangement of the limiting groove.
When the invention is used, firstly, the clamp body is used for placing and clamping the esophagus/small intestine to be cut, and then the trigger device is used for pushing the cutting knife 4 to move and feed, at the moment, the cutting knife 4 cuts the esophagus/small intestine and simultaneously drives the nail pusher 8 and the trigger 20 to move; the nail pusher 8 corresponding to the group of the pouch nail holes 7 contacts the titanium nail plate 9 in the moving process, and urges the titanium nail plate 9 to move towards the side of the nail holes, at the moment, the spring 92 is in compression deformation, the titanium nail plate 9 enables the nail feet of the titanium nail 30 to be nailed into the tube wall/intestinal wall of the esophagus/small intestine extruded from the pouch nail holes 7, and the pouch suture line 5 is clamped between the titanium nail 30 and the tube wall/intestinal wall of the esophagus/small intestine, so that a pouch type suture port is formed; the staple pusher 8 corresponding to the group of the closed staple holes 6 causes the staple legs of the titanium staples 30 in the closed staple holes 6 to penetrate through the tube wall/intestinal wall of the esophagus/small intestine and completely staple the tube wall/intestinal wall of the esophagus/small intestine to form a closed suture port. When the cutting knife 4 is fed to the tail end, the trigger 20 contacts the protrusion structure 102 and drives the pouch nail anvil connecting frame 10 to move forwards through the protrusion structure 102, at the moment, the pouch nail anvil on the pouch nail anvil connecting frame 10 is staggered with the corresponding titanium nail 30, and the titanium nail 30 is completely exposed in the pouch nail hole 7. When the cutting knife 4 retreats, the trigger member 20 is separated from the convex structure 102, the purse-string nail anvil connecting frame 10 does not move along with the trigger member 20, and the purse-string nail anvil and the corresponding titanium nail 30 are still arranged in a staggered manner; when the cutter knife 4 is withdrawn, the nail pusher 8 is separated from the titanium nail plate 9, the titanium nail plate 9 is reset under the action of the spring 92, the titanium nail 30 is separated from the titanium nail plate 9, and when the forceps body is opened, the titanium nail 30 is separated from the forceps body and is nailed on the tube wall of the esophagus/small intestine.
In conclusion, the purse-string suture cutting and closing device designed by the invention enables the esophagus/small intestine to be sutured in a closed mode at one end and in a purse-string mode at one end, namely open suturing, through the improvement of the clamp body, the suture in the purse-string mode can be convenient for the nail-supporting seat of the anastomat used for the post-anastomosis treatment to be placed at the end, so that the integrated operation of the closed suture cutting and the open suture cutting and closing device designed by the invention can be realized, the workload in the operation of a doctor is reduced to a certain extent, the operation time of the doctor is saved, and the practicality and the convenience are better.
The above description is for the purpose of illustrating the preferred embodiments of the present invention, but the present invention is not limited thereto, and all changes and modifications that can be made within the spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. A purse string suture cutting closer for use with a firing device, comprising:
the shell is internally provided with a pushing piece connected with the firing device;
the pliers body is arranged at one end of the shell and comprises an upper pliers body and a lower pliers body which can be mutually opened or closed, the upper pliers body and the lower pliers body are provided with a push cutter groove along the length direction, the side surface of the lower pliers body facing the upper pliers body is provided with two groups of nail hole groups, the two groups of nail hole groups are arranged on two opposite sides of the push cutter groove, each group of nail hole group comprises a plurality of nail holes which are arranged at intervals, titanium nails are placed in the nail holes, and a nail pusher for driving the titanium nails to be nailed is arranged in the lower clamp body;
the cutting knife is slidably arranged in the push knife groove and is connected with the nail pusher and the pushing piece;
the method is characterized in that:
in the two groups of nail hole groups on the lower clamp body, one group of nail hole groups are closed nail hole groups, the other group of nail hole groups are pouched nail hole groups, and pouched nail holes in the pouched nail hole groups form included angles with the push broach grooves;
a group of pouch nail hole groups are also formed in the side surface, facing the lower forceps body, of the upper forceps body, the pouch nail hole groups are arranged on one side of the cutter pushing groove, and a closed nail anvil matched with a closed nail hole in the lower forceps body is arranged on the other side of the cutter pushing groove; the upper clamp body is internally provided with the nail pusher;
the upper clamp body and the lower clamp body are both provided with a purse-string nail anvil connecting frame in a sliding manner, a plurality of groups of purse-string nail anvils are arranged on the purse-string nail anvil connecting frame at intervals, each group of purse-string nail anvils is matched with a purse-string nail hole for use, each group of purse-string nail anvil comprises two anvil parts which are respectively arranged at two ends of the purse-string nail hole, and each anvil part corresponds to one nail foot of a titanium nail when the titanium nail is nailed; the pouch nail anvil connecting frame is pushed by the cutting knife to slide, and each group of pouch nail anvils on the pouch nail anvil connecting frame is enabled to be staggered or overlapped with the corresponding pouch nail holes under the action of the cutting knife;
each group of purse-string nail hole groups consists of a row of purse-string nail holes which are arranged at intervals along the length direction of the forceps body;
also comprises a purse-string suture; the purse-string suture is connected with the upper forceps body and the lower forceps body simultaneously, traverses each purse-string nail hole and is positioned between two nail feet of the titanium nail in the purse-string nail hole; the purse-string suture is detachably connected with the upper forceps body and the lower forceps body.
2. The purse-string suture cutting closure device of claim 1, wherein: the titanium nail plate is arranged in the upper clamp body and the lower clamp body in a sliding mode, a plurality of nail grooves are formed in one side face of the titanium nail plate at intervals, and the titanium nails in the purse-string nail holes are placed in the nail grooves.
3. The purse-string suture cutting closure device of claim 2, wherein: the titanium nail plates are all slidably mounted in the corresponding forceps bodies through springs.
4. The purse string suture cutting closure device of claim 2 or 3 wherein: the nail pusher for driving the titanium nails in the pouch nail holes to be nailed is a pressure plate piece, the side surface of the pressure plate piece facing the titanium nail plate is an inclined surface, and the inclined surface inclines towards the side where the pouch nail holes are located; when the cutting knife drives the pressing plate to move, the titanium nail plate pushes the titanium nails to move to the sides of the nail holes of the purse-string nails under the action of the inclined surface of the pressing plate and to be nailed.
5. The purse-string suture cutting closure device of claim 1, wherein: the closed nail holes in the closed nail hole group are arranged in parallel with the cutter pushing groove, and the included angle formed by the pouch nail holes and the cutter pushing groove is 90 degrees.
6. The purse-string suture cutting closure device of claim 1, wherein: when the purse-string nail anvil and the purse-string nail hole are arranged in a staggered manner, the purse-string nail anvil connecting frame does not shield the purse-string nail hole and does not contact with the titanium nail.
7. The purse string suture cutting closure device of claim 1 wherein: one end of the pouch nail anvil connecting frame, which is far away from the shell, is provided with a convex structure, and the convex structure is positioned at the side of the push broach slot and is arranged towards the push broach slot; the upper clamp body and the lower clamp body are both provided with trigger pieces in a sliding manner, and the trigger pieces are connected with the cutting knife and slide along with the cutting knife under the driving of the cutting knife; when the cutting knife moves to the end where the bulge structure is located, the trigger piece touches the bulge structure and pushes the bulge structure to move to enable the pouch nail anvil connecting frame to slide so as to enable the pouch nail anvil and the pouch nail hole to be staggered mutually.
8. The purse-string suture cutting closure device of claim 1, wherein: a limiting groove is formed in one side face, contacting the titanium nails, of the purse-string nail anvil, and the limiting groove is arranged along the sliding direction of the titanium nail feet when the titanium nails are nailed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710632271.2A CN107307891B (en) | 2017-07-28 | 2017-07-28 | Purse-string suture cutting closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710632271.2A CN107307891B (en) | 2017-07-28 | 2017-07-28 | Purse-string suture cutting closer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107307891A CN107307891A (en) | 2017-11-03 |
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| CN109199500B (en) * | 2018-10-24 | 2023-09-26 | 汕头大学 | Nail pushing device of endoscopic purse-string suture device |
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