CN111466981A - Nail bin assembly and surgical operation instrument - Google Patents
Nail bin assembly and surgical operation instrument Download PDFInfo
- Publication number
- CN111466981A CN111466981A CN201911134668.4A CN201911134668A CN111466981A CN 111466981 A CN111466981 A CN 111466981A CN 201911134668 A CN201911134668 A CN 201911134668A CN 111466981 A CN111466981 A CN 111466981A
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- nail
- cutting
- cutting knife
- assembly
- 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, 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
- 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, 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
- A61B17/068—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, 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
Abstract
The invention relates to a nail bin assembly and a surgical operation instrument, wherein a cutting knife rest body and a cutting knife are arranged on a nail bin body or a nail anvil body and are arranged at the far end of the nail bin body or the nail anvil body, after a suturing nail is completely formed, a knife rod is pulled at the far end to be in butt joint with the cutting knife rest body, the knife rod is pulled back from the far end to the near end to cut tissues, and the cutting is carried out after the suturing nail is completely formed, so that the uniform height and shape of the suturing nail are realized, and the purpose of bleeding and leakage of an anastomotic stoma is reduced.
Description
Technical Field
The invention relates to a nail bin assembly and a surgical operation instrument, and belongs to the field of medical instruments.
Background
When the existing linear type cutting anastomat is fired, a nail pushing piece arranged in a nail bin assembly is pushed through a firing push rod to complete the firing action of titanium nails, meanwhile, a cutting knife positioned at the far end of a cutting knife rod lags behind a wedge-shaped head part at the far end of the firing push rod by 3-5mm, when a user operates a firing push button to complete the firing action, the firing push rod and the cutting knife push rod move simultaneously, due to the lag relation between the wedge-shaped head part of the nail pushing rod and the cutting knife, the titanium nails in the nail bin assembly are molded firstly, and the cutting knife positioned 3-5mm behind the wedge-shaped head part of the nail pushing rod lags.
However, due to the short time interval between the suturing and cutting, when the wedge-shaped head at the far end of the firing push rod pushes the nail pushing sheet to extrude the titanium nail to form a B-shaped staple with unstable shape, the cutting action is performed immediately, and the cutting knife pulls the sutured tissue, so that the displacement of the tissue is caused, and the height and the consistency of the finished nail are influenced. Finally, the phenomena of great discreteness of the height of the existing nail, local bleeding after anastomosis and the like are generated. Simultaneously, the cutting knife of current structure and the distal end integrated into one piece of cutting cutter arbor, the nail storehouse subassembly has been changed but the cutting knife can not be changed when the apparatus triggers many times, the planting and the transfer of tumour cell appear easily.
Disclosure of Invention
The invention aims to provide a nail bin assembly and a surgical operation instrument, which can cut tissue after a fired suturing nail is completely formed, so that the stability of the forming process of the suturing nail is ensured, the uniform height and shape of the formed suturing nail are realized, and the aim of reducing bleeding and leakage of an anastomotic stoma is fulfilled.
In order to achieve the purpose, the invention provides the following technical scheme: a nail bin assembly comprises a nail bin body, suturing nails, nail pushing sheets and pushing blocks, wherein the suturing nails are arranged in the nail bin body; the nail bin assembly further comprises a cutting knife rest body and a cutting knife arranged on the cutting knife rest body, the nail bin body is provided with a far end and a near end which are arranged oppositely, and the cutting knife rest body is arranged at the far end; the cutting tool rest body comprises a side plate and a butt joint part clamped and matched with the broaching tool rod.
Furthermore, the nail bin body comprises a nail bin suture surface which is used for being contacted with sutured tissues, an elastic piece which drives the cutting edge of the cutting knife not to protrude out of the nail bin suture surface is formed on the side plate, and the elastic piece is driven to deform after the pull knife rod is in butt joint with the cutting knife rack body so that the cutting edge of the cutting knife protrudes out of the nail bin suture surface.
Furthermore, an elastic piece for driving the cutting edge of the cutting knife not to extend out of the cutting knife rest body is formed on the side plate.
Furthermore, a rotating shaft is arranged on the side plate, the cutting knife is sleeved on the rotating shaft, and the elastic piece is a torsion spring sleeved on the rotating shaft.
Further, the butting portion is formed on the side plate.
Furthermore, the side plates are two oppositely arranged, and a butt joint groove for containing the cutting knife is formed between the two side plates.
Furthermore, the butt joint part is an elastic buckle formed by bending from the side plate towards the butt joint groove.
The invention also provides a surgical operation instrument which comprises the nail bin assembly, a nail anvil assembly butted with the nail bin assembly, a handle connected with the nail anvil assembly and the nail bin assembly, a closing pressure rod and a driving assembly, wherein the closing pressure rod and the driving assembly are arranged on the handle, a nail pushing rod and a broach rod used for pulling the cutting knife rest body to move are also arranged in the handle, the nail pushing rod is connected with the driving assembly, and when the driving assembly drives the nail pushing rod to move towards the far end, the nail pushing rod drives the broach rod to move towards the far end so as to enable the broach rod to be clamped and matched with the cutting knife rest body.
Compared with the prior art, the nail bin assembly and the surgical operation instrument provided by the invention have the advantages that the cutting knife is arranged at the far end of the nail bin assembly, the pull knife rod and the cutting knife rest body are pulled back to the near end to cut after the suturing nails are fired, namely, after the fired suturing nails are completely formed, the tissue cutting is carried out, the stability of the forming process of the suturing nails is ensured, the uniform height and shape of the formed nails are realized, and the purpose of bleeding and leakage of anastomotic openings is reduced.
In order to achieve the purpose, the invention also provides the following technical scheme: the utility model provides a surgical instrument, surgical instrument includes the handle, sets up side by side handle one end and relative nail anvil subassembly and nail storehouse support, set up and be in be used for the drive on the handle nail anvil subassembly and the closed depression bar of nail storehouse support, setting are in push pin pole and the broach pole in the handle and setting are in order to drive on the handle push pin pole and broach pole follow the drive assembly that the lengthwise direction of nail anvil body removed, the nail anvil subassembly includes nail anvil body, sets up and is in cutting knife rest body in the nail anvil body and setting are in cutting knife on the cutting knife rest body, the nail anvil body have with the near-end that the handle is connected with keep away from the distal end that the handle set up, the cutting knife rest body sets up the distal end, the cutting knife rest body includes the curb plate and holds the complex butt joint portion with the broach pole card, be formed with on the nail anvil body along the cutting groove of the lengthwise direction extension of nail anvil body, after the pull cutter rod is in butt joint with the cutting cutter frame body, the pull cutter rod pulls the cutting cutter frame body and the cutting knife to move towards the near end at the far end in the cutting groove.
Furthermore, the nail anvil body comprises a nail anvil sewing surface which is used for contacting with the tissue to be sewn, an elastic piece which drives the cutting edge of the cutting knife not to protrude out of the nail anvil sewing surface is formed on the side plate, and the cutting knife rod and the cutting knife rack body are butted and then drive the elastic piece to deform so that the cutting edge of the cutting knife protrudes out of the nail anvil sewing surface.
Furthermore, the side plates are two oppositely arranged, and a butt joint groove for containing the cutting knife is formed between the two side plates.
Furthermore, a rotating shaft is arranged on the side plate, and the cutting knife is sleeved on the rotating shaft.
Further, the elastic part is a torsion spring sleeved on the rotating shaft.
Furthermore, the butt joint part is an elastic buckle formed by bending from the side plate towards the butt joint groove, and a clamping groove matched with the elastic buckle is formed in the pull cutter rod.
Furthermore, the shape of the cutting knife is similar to Arabic numeral 7, when the cutting knife rod is inserted into the butt joint part of the cutting knife rack body, the cutting knife is rotated and ejected out, so that the cutting edge protrudes out of the nail anvil sewing surface, and meanwhile, the elastic buckle on the side plate deforms and then buckles the clamping groove of the cutting knife rod.
Further, the cutting groove comprises an accommodating part arranged close to the far end and a sliding part formed by extending from the accommodating part to the near end, the groove width of the accommodating part is larger than that of the sliding part, when the cutting knife rest is not in butt joint with the pull knife rod, the cutting knife rest is partially arranged in the accommodating part, and the elastic buckle of the cutting knife rest is positioned in the accommodating part.
Further, the driving assembly drives the nail pushing rod and the cutter pulling rod simultaneously.
Further, the surgical instrument also comprises a nail box assembly arranged on the nail box bracket, and a cutting groove corresponding to the cutting groove is formed on the nail box assembly.
Compared with the prior art, the surgical operation instrument has the advantages that the cutting knife is arranged at the far end of the nail anvil body, after the suturing nail is fired, the pull knife rod and the cutting knife rest body are pulled back to the near end to be cut, namely, after the fired suturing nail is completely formed, tissue cutting is carried out, the stability of the forming process of the suturing nail is guaranteed, the uniform height and shape of the formed nail are realized, and the purpose of reducing bleeding and leakage of an anastomotic stoma is achieved.
In conclusion, the beneficial effects of the invention are as follows: surgical instruments is through setting up cutting knife rest body and cutting knife on nail storehouse body or nail anvil body, and with its distal end that sets up at nail storehouse body or nail anvil body, sew up the complete shaping back, draw the cutter arbor and dock with cutting knife rest body at the distal end, pull back by distal end to near-end, organize the cutting, guaranteed to sew up and cut again after the complete shaping to realize unified one-tenth nail height and form, reduce the mesh of the hemorrhage seepage of coincide mouth.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of a staple cartridge assembly according to one embodiment of the present invention;
FIG. 2 is a schematic structural view of a staple cartridge body of the staple cartridge assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of a pusher block of the staple cartridge assembly according to one embodiment of the present invention;
FIGS. 4 and 5 are schematic views of a cutting knife holder body of the staple cartridge assembly according to an embodiment of the present invention;
FIGS. 6 and 7 are schematic views of a surgical instrument according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a surgical instrument according to another embodiment of the present invention;
FIG. 9 is a schematic view of a broach rod according to an embodiment of the present invention;
FIG. 10 is a schematic view of an anvil according to another embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "axial direction", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be configured in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1 to 5, a cartridge assembly (which may be referred to as a cartridge or a cartridge for a surgical instrument) according to an embodiment of the present invention includes a cartridge body 1, staples 10 disposed in the cartridge body 1, staple pushing plates 11 for pushing the staples 10, a pushing block 2 for pushing the staple pushing plates 11, and a frame body 12 fixed at the bottom of the cartridge body 1. When the cartridge assembly is not used, a cover plate (not shown) may be covered on the top of the cartridge body 1, so as to prevent the staples 10 (titanium staples) from falling off during the operation or prevent dust and the like from entering the staples 10.
In this embodiment, the frame body 12 and the cover plate are connected to the magazine body 1 by a common mechanical connection method, for example: snap fit connections, threaded connections, and the like. The staple cartridge body 1 has a distal end and a proximal end (referring to fig. 1 as an example, the proximal end in the present invention is indicated by an arrow a, and the distal end is opposite to a direction a), the distal end enters into the tissue to be sutured first relative to the proximal end, and when the staple cartridge assembly is mounted on the surgical instrument, the staple cartridge assembly is mounted first and then the cover plate is removed. For the sake of distinction, the distal end of the cartridge body 1 is referred to as the distal cartridge end, and the proximal end thereof is referred to as the proximal cartridge end.
In the invention, the nail bin body 1 is provided with a channel 13 for the propelling block 2 to move in the longitudinal direction, the nail bin body 1 is symmetrically provided with an inner suturing cavity 14 and an outer suturing cavity 15 at the left and right sides in the longitudinal direction by taking the channel 13 as a symmetry axis, the inner suturing cavity 14 is arranged close to the channel 13 relative to the outer suturing cavity 15, and the nail pushing sheet 11 comprises an inner nail pushing sheet and an outer nail pushing sheet, wherein the inner nail pushing sheet is respectively arranged in the inner suturing cavity 14, and the outer nail pushing sheet is arranged in the outer suturing cavity 15. The stitching nail 10 comprises an inner stitching nail arranged in the inner stitching cavity 14 and an outer stitching nail arranged in the outer stitching cavity 15, and the inner stitching nail and the outer stitching nail are respectively arranged on an inner nail pushing sheet and an outer nail pushing sheet. During the suturing process, the outer suturing nails are used for suturing the area close to the tissue anastomotic stoma, and the inner suturing nails are used for suturing the area on the inner side of the tissue relative to the outer suturing nails. The staple pusher 11 of the present invention is of conventional construction and the manner in which the staples 10 are installed is conventional and will not be described further herein.
In the present invention, the propelling block 2 includes a base plate 21, two first cam groups 22 and two second cam groups 23 arranged in parallel and perpendicular to the base plate 21, and a stopper 24 perpendicular to the base plate 21, wherein the two first cam groups 22 are located between the two second cam groups 23, and the stopper 24 is located between the two first cam groups 22. In the moving direction of the thrust block 2, the end of the first cam group 22 is located forward of the end of the second cam group 23. The nail bin body 1 is further provided with a plurality of sliding grooves 16 for accommodating the first cam group 22 and the second cam group 23, the first cam group 22 and the second cam group 23 can move relative to the sliding grooves 16, and the limiting block 24 is arranged in the channel 13 so as to prevent the pushing block 2 from deviating from the moving direction or shaking when the pushing block 2 moves relative to the nail bin body 1. The first cam group 22 pushes the inner nail pushing sheet to trigger, so that the inner stitching nails are output; the second cam group 23 pushes the outer nail pushing sheet to trigger, so that the outer stitching nails are pushed out. Because the end of the first cam group 22 is located at the front side of the end of the second cam group 23, when the pushing block 2 moves towards the far end, the pushing block pushes the inner staple pusher to fire, so that the inner staples in the inner suture cavity 14 can be discharged faster than the outer staples.
Further, the cartridge body 1 comprises a cartridge stapling surface 110 for contacting the stapled tissue. A distance d1 is formed between the end of the stem of the inner staple and the staple cartridge stapling surface 110, a distance d2 is formed between the end of the stem of the outer staple and the staple cartridge stapling surface 110, wherein d1 is smaller than d2, i.e. the stem of the inner staple is closer to the staple cartridge stapling surface 110 than the stem of the outer staple. Specifically, in the present embodiment, the inner staple pushing plate is disposed closer to the staple cartridge stapling surface 110 than the outer staple pushing plate; indeed, in other embodiments, it is also possible to use an inner suture nail with a longer shank, or a combination of both, or the inner suture cavity 14 is arranged higher than the outer suture cavity 15.
In the invention, the nail bin body 1 is also internally provided with a cutting knife rest body 3 and a cutting knife 30 arranged on the cutting knife rest body 3, and the cutting knife rest body 3 is arranged at the far end. Specifically, the cutting tool holder body 3 comprises a side plate 31 and a butt joint part 32 clamped and matched with the broach rod, a rotating shaft 33 is arranged on the side plate 31, and the cutting tool 30 is sleeved on the rotating shaft 33. Specifically, in this embodiment, the side plate 31 is formed with an elastic member 34 for driving the cutting edge of the cutting knife 30 not to protrude out of the magazine suture surface 110, further, the elastic member 34 drives the cutting edge (not shown) of the cutting knife 30 not to protrude out of the cutting knife block 3, since the elastic member 34 drives the cutting edge of the cutting knife 30 not to protrude out of the cutting knife block 3 and the cutting knife block 3 is disposed inside the magazine body 1, the cutting edge of the cutting knife 30 does not protrude out of the magazine suture surface 110. Preferably, the elastic member 34 is a torsion spring sleeved on the rotating shaft 33. In this embodiment, the abutting portion 32 is formed on the side plates 31, the side plates 31 are two pieces arranged oppositely, and an abutting groove 311 for accommodating the cutting blade 30 is formed between the two pieces of side plates 31. The abutting portion 32 is an elastic clip formed by bending from the side plate 31 toward the inside of the abutting groove 311.
Referring to fig. 6, 7 and 9, the present invention further provides a surgical instrument, which includes the above-mentioned nail cartridge assembly, an anvil assembly 4 butted with the nail cartridge assembly, a handle 5 connecting the anvil assembly 4 and the nail cartridge assembly, and a closing pressure lever 51 and a driving assembly (not shown) arranged on the handle 5, wherein the closing pressure lever 51 is mounted on the handle 5 through a guide pin 510, and the handle 5 is further provided with a firing push button 52 connected with the driving assembly for operation. Still be equipped with in the handle 5 and push away nail pole 53 and broach pole 54, push away nail pole 53 and connect drive assembly, broach pole 54 sets up with propulsion block 2 push away the front end of nail pole 53, just be equipped with on the broach pole 54 with elasticity buckle 32 matched with draw-in groove 541 is in order to make broach pole 54 and cutting knife rest body 3 block the cooperation, and of course, in other embodiments, broach pole 54 and cutting knife rest body 3 block the cooperation and can adopt other structures among the prior art. When the driving assembly drives the nail pushing rod 53 to move towards the distal end, the nail pushing rod 52 drives the pull rod 54 to move towards the distal end, so that the elastic buckle 32 is buckled into the clamping groove 541. In the invention, the handle 5 comprises a nail box bracket side handle 55 and a nail anvil side handle 56 which are fixedly connected with the nail box component and the nail anvil component 4 respectively.
The operating principle of the surgical instrument of the invention is as follows:
after the cartridge holder side handle 55 and the anvil side handle 56 are aligned with the guide pins 510, the closing lever 51 is pressed down to close the jaws (to clamp the tissue to be stapled by the cartridge assembly and the anvil assembly 4). The proximal end firing push button 52 is pushed to drive the nail pushing rod 53 and the broach rod 54 to move simultaneously, the nail pushing rods 53 on the two sides push the nail pushing sheet 11 in the nail bin assembly to move vertically downwards through the inclined planes of the distal end head, so that the sequential compression deformation of the suturing nails 10 is realized, and finally B-type suturing nails are formed so as to suture tissues. Because the puller bar 54 is lagging behind and hidden within the cartridge assembly, the stapling process does not contact the tissue between the cartridge stapling surface 110 and the anvil surface. After the pushing rod 53 is pushed to the distal end to form all the staples 10 in the cartridge assembly, the pulling rod 54 contacts the cutting knife holder body 3 inside the distal end of the cartridge assembly. Because the cutting knife 30 is mounted on the cutting knife holder body 3 through the rotating shaft 33, when the pull knife bar 54 is inserted into the butt joint groove 311, the cutting knife 30 can be rotationally ejected out, and meanwhile, the elastic buckle 32 on the side plate 31 deforms and then buckles the clamping groove 541 of the pull knife bar 54. At this point, the staple 10 is fired, and the retraction of the firing button 52 will cause the cutting blade 30, which has been extended from the interior of the cutting blade body 3, to cut tissue from the distal end to the proximal end. During the cutting process, the elastic buckles 32 inside the cutting knife rack body 3 are held by the side walls of the nail box assembly at two sides, and cannot be deformed to be separated from the pull rod 54 until the complete cutting process of the tissue is completed. When the cutting knife 30 has cut the tissue and moves to the proximal end of the magazine assembly, a step (not shown) at the proximal end of the magazine assembly blocks the cutting knife holder body 3. While recesses (not shown) in the proximal side of the cartridge assembly allow the resilient catches 32 to deform out of engagement, thereby disengaging the puller bar 54 from the cutting block 3. After the broaching tool bar 54 is separated from the cutting tool holder body 3, the torsion spring 34 disposed on the rotating shaft 33 enables the cutting tool 30 to be automatically retracted, thereby preventing the exposed cutting tool 30 from accidentally scratching a user.
Referring to FIGS. 8-10 in conjunction with FIGS. 4 and 5, another preferred embodiment of the present invention is shown a surgical instrument that includes a handle 5, an anvil assembly 4, a firing push button (not numbered), a cartridge mounting bracket 6, a staple pusher bar 7, a knife pull bar 54, and a drive assembly (not numbered). The cartridge mounting bracket 6 is part of the cartridge bracket side handle as shown in the first embodiment, but of course, in other embodiments, the cartridge mounting bracket 6 may be a separate component. The nail anvil component comprises a nail anvil body 41, a cutting knife rest body 3 and a cutting knife 30; the anvil body 41 has opposite far and near ends, the near end of the anvil body 4 is connected with the handle 5, and the far end is the end far away from the handle 5. For the sake of distinction, the proximal end of the anvil body 4 is referred to as the proximal anvil end, and the distal end thereof is referred to as the distal anvil end. The cutting knife rest body 3 and the cutting knife 30 are arranged at the far end in the anvil body 41; the cutting tool holder body 3 comprises a side plate 31 and a butt joint part 32 which is matched with the broach rod 54 in a clamping way; the side plates 31 are two oppositely arranged, and a butt joint groove 311 for accommodating the cutting knife 30 is formed between the two side plates 31. The side plate 31 is provided with a rotating shaft 33, and the cutting knife 30 is sleeved on the rotating shaft 33. The abutting portion 32 is an elastic buckle 32 formed by bending from the side plate 31 toward the abutting groove 311, and a locking groove 541 is formed in the draw bar 54 to be engaged with the elastic buckle 32.
The anvil body 41 includes an anvil suture surface 108 for contacting the tissue to be sutured, an elastic member 34 is formed on the side plate 31 for driving the cutting edge of the cutting knife 30 not to protrude out of the anvil suture surface 108, and the pulling knife bar 54 is abutted with the cutting knife block 3 and then drives the elastic member 34 to deform so that the cutting edge of the cutting knife 54 protrudes out of the anvil suture surface 108. In this embodiment, the elastic element 34 is a torsion spring 34 sleeved on the rotating shaft 33, and one end of the torsion spring abuts against the cutting blade 30 and the other end abuts against the cutting blade holder body 3.
The shape of the cutting knife 30 is similar to that of the arabic numeral 7, and when the pull knife bar 54 is inserted into the abutting portion 32 of the cutting knife holder body 3, the cutting knife 30 is rotated and ejected out to make the knife edge protrude out of the contact surface 108, and meanwhile, the elastic buckle 32 on the side plate 31 is deformed to buckle the clamping groove 541 of the pull knife bar 54.
The anvil body 41 is formed with a cutting groove 105 extending along the longitudinal direction of the anvil body 41 (as indicated by arrow a in fig. 8), and the cutting groove 105 has a groove wall 106 and a groove wall 107 which are oppositely arranged. The cutting groove comprises a holding part (not numbered) arranged near the far end and a sliding part (not numbered) formed by extending from the holding part to the near end. The groove width of the accommodating part is greater than that of the sliding part, and when the cutting tool holder body 3 is not butted against the draw bar 54, the cutting tool holder body 3 is partially disposed in the accommodating part and the elastic buckle of the cutting tool holder body 3 is located in the accommodating part. It should be noted that the groove width of this holding portion is greater than the required deformation space of deformation takes place for elastic buckle 32 when broach pole 54 inserts to cutting knife rest body 3, and the groove width of the portion of sliding is less than the required deformation space of deformation takes place for elastic buckle 32 when broach pole 54 inserts to cutting knife rest body 3, through this kind of setting, when the cutting, cutting knife rest body 3 is whole to be arranged in, at this moment, cutting knife rest body 3 keeps between two cell walls, elastic buckle 32 card is gone into draw the draw-in groove 541 of broach pole 54 and is not broken away from.
The nail bin assembly is mounted on the nail bin mounting bracket 6, and is of a structure in the prior art, and the detailed description is omitted. The nail box assembly generally comprises a nail box body 1, sewing nails, a nail pushing sheet 11, a pushing block 2, a nail box bracket and a cover plate (not shown); the stitching nail is arranged in the nail bin body 1, the nail pushing rod 7 pushes the pushing block 2, the pushing block 2 pushes the nail pushing sheet 11, and the nail pushing sheet 11 pushes out the stitching nail to stitch the tissue. The nail box assembly is provided with a far end and a near end which are oppositely arranged, for the sake of difference, the far end of the nail box body 1 is called as a nail box far end, and the near end thereof is called as a nail box near end. It should be noted that, after the nail cartridge assembly is mounted on the nail cartridge mounting bracket 6, along the longitudinal direction of the nail anvil body 41, the proximal end of the nail anvil and the proximal end of the nail cartridge are located on the same side, and the distal end of the nail anvil and the distal end of the nail cartridge are located on the same side. In this embodiment, the staple cartridge body 1 is provided with a channel in the longitudinal direction for the pushing block 2 to move, the channel corresponds to the cutting groove 105, and when the cutting knife 30 is cutting, the cutting edge of the cutting knife 30 extends into the channel, so as to complete better cutting. The nail bin body 1 is provided with an inner suturing cavity and an outer suturing cavity which are symmetrically arranged left and right in the longitudinal direction by taking the channel as a symmetry axis, the inner suturing cavity is arranged close to the channel relative to the outer suturing cavity, and the nail pushing sheet 11 comprises an inner nail pushing sheet and an outer nail pushing sheet, the inner nail pushing sheet is arranged in the inner suturing cavity, and the outer nail pushing sheet is arranged in the outer suturing cavity. The stitching nail comprises an inner stitching nail arranged in the inner stitching cavity and an outer stitching nail arranged in the outer stitching cavity, and the inner stitching nail and the outer stitching nail are respectively arranged on an inner nail pushing sheet and an outer nail pushing sheet. In the suturing process, the outer suturing nails are used for suturing the area close to the tissue anastomotic stoma, the inner suturing nails are used for suturing the area on the inner side of the tissue relative to the outer suturing nails, and the cartridge body 1 is provided with a contact surface contacted with the sutured tissue. The pushing block 2 and the nail pushing sheet 11 are of the existing structure, and the installation mode of the suturing nail is also of the existing conventional mode.
When the magazine assembly is not used, a cover plate (not shown) may be covered on the top of the magazine body 1. In this embodiment, the cartridge holder and the cover plate are connected to the cartridge body 1 by a common mechanical connection method, for example: snap fit connections, threaded connections, and the like. When the cartridge assembly is installed on the surgical instrument, the cover plate is removed after the cartridge assembly is installed.
The nail box body 1 and the nail anvil body 41 are arranged side by side and oppositely arranged at one end of the handle 5; a closing pressure lever 51 is arranged on the handle 5 through a guide pin 510 and is used for driving the nail anvil assembly 4 and the nail box mounting bracket 6 to close; the nail pushing rod 7 and the broach rod 54 are arranged in the handle 5; the driving component is arranged in the handle 5 and is used for driving the nail pushing rod 7 and the knife pulling rod 54 to move along the longitudinal direction of the anvil body 41.
The closing pressure lever 51 is pressed to close the nail anvil assembly 4 and the nail bin mounting bracket 6, and the channel on the nail bin body corresponds to the cutting groove 105 on the nail anvil body. The firing push button is pressed, the driving assembly drives the nail pushing rod 7 to move in the direction away from the handle, the nail pushing rod 7 pushes the pushing block 2, the pushing block 2 pushes the nail pushing sheet 11, and the nail pushing sheet 11 pushes out suturing nails to suture tissues; pressing the percussion and pushing the button, the drive assembly drives the broach pole 54 to move towards the far end direction in the near end of the nail anvil body 41, the drive assembly drives the nail pushing pole 53 and the broach pole 54 simultaneously, at the far end of the nail anvil body 41, the broach pole 54 is butted with the cutting knife rest body 3, at this moment, the broach pole 54 pushes the cutting knife 30, and its thrust is greater than the elastic force of the extension spring 34, the cutting knife 30 of Arabic numeral 7 shape is rotated and ejected, the cutting edge stretches out the nail anvil suture surface 108 suddenly, afterwards, the drive assembly drives the broach pole 54 to pull back, the cutting knife rest body 3 and the cutting knife 30 are in the distal end of the nail anvil body 41 moves towards the near end in the cutting groove 105, finish the cutting of the tissue.
Above-mentioned two kinds of surgical operation apparatus are through setting up cutting knife rest body and cutting knife on nail storehouse body or nail anvil body, and with its distal end that sets up at nail storehouse body or nail anvil body, sew up the complete shaping back, draw the cutter arbor and dock with cutting knife rest body at the distal end, pull back by distal end to near-end, organize the cutting, guaranteed to sew up and cut again after the complete shaping to realize unified one-tenth nail height and form, reduce the mesh of the hemorrhage seepage of coincide mouth.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The nail bin assembly is characterized by comprising a nail bin body, suturing nails, a nail pushing sheet and a pushing block, wherein the suturing nails are arranged in the nail bin body; the nail bin assembly further comprises a cutting knife rest body and a cutting knife arranged on the cutting knife rest body, the nail bin body is provided with a far end and a near end which are arranged oppositely, and the cutting knife rest body is arranged at the far end; the cutting tool rest body comprises a side plate and a butt joint part clamped and matched with the broaching tool rod.
2. The assembly according to claim 1, wherein said cartridge body includes a cartridge stapling surface for contacting tissue to be stapled, said side plate having an elastic member formed thereon for driving said cutting blade without said cutting edge protruding beyond said cartridge stapling surface, said pulling blade abutting said cutting blade holder body for driving said elastic member to deform so that said cutting blade protrudes beyond said cartridge stapling surface.
3. The assembly according to claim 2, wherein said side plates are formed with resilient members for driving the cutting blade without the cutting edge of said cutting blade protruding beyond the cutting blade holder body.
4. The nail bin assembly according to claim 2 or 3, wherein a rotating shaft is arranged on the side plate, the cutting knife is sleeved on the rotating shaft, and the elastic member is a torsion spring sleeved on the rotating shaft.
5. The staple cartridge assembly of claim 4, wherein said abutments are formed on said side plates.
6. The staple cartridge assembly of claim 5, wherein said side plates are disposed in opposing relation, and wherein an abutment slot is formed between said side plates for receiving said cutting knife.
7. The staple cartridge assembly of claim 6, wherein said abutment is a resilient snap formed by bending said side plate into said abutment slot.
8. A surgical instrument, comprising the nail magazine assembly as claimed in any one of claims 1 to 7, a nail anvil assembly butted with the nail magazine assembly, a handle connected with the nail anvil assembly and the nail magazine assembly, and a closing pressure bar and a driving assembly arranged on the handle, wherein a nail pushing bar and a knife pulling bar for pulling the cutting knife rest body to move are further arranged in the handle, the nail pushing bar is connected with the driving assembly, and when the driving assembly drives the nail pushing bar to move towards the distal end, the nail pushing bar drives the knife pulling bar to move towards the distal end, so that the knife pulling bar and the cutting knife rest body are clamped and matched.
9. The utility model provides a surgical operation apparatus, which is characterized in that, surgical operation apparatus includes the handle, set up side by side handle one end and relative setting nail anvil subassembly and nail storehouse support, setting are in be used for the drive on the handle nail anvil subassembly and the closed depression bar of nail storehouse support, setting are in push away the nail pole and the broach pole in the handle and setting are in order to drive on the handle push away the nail pole and the broach pole along the drive assembly of the lengthwise direction removal of nail anvil body, the nail anvil subassembly includes nail anvil body, sets up in cutting knife rest body in the nail anvil body and setting are in cutting knife on the cutting knife rest body, the nail anvil body have with the near-end that the handle is connected with keep away from the distal end that the handle set up, the cutting knife rest body sets up the distal end, the cutting knife rest body includes the curb plate and with broach pole joint portion of block cooperation, the nail anvil comprises a nail anvil body and is characterized in that a cutting groove extending along the longitudinal direction of the nail anvil body is formed in the nail anvil body, and after the pull cutter rod is in butt joint with the cutting cutter rack body, the pull cutter rod pulls the cutting cutter rack body and the cutting cutter to move towards the near end from the far end in the cutting groove.
10. The surgical instrument of claim 9, wherein the anvil body includes an anvil stapling surface configured to contact the tissue to be stapled, wherein the side plate defines a resilient member configured to drive the cutting blade without the cutting edge of the cutting blade protruding beyond the anvil stapling surface, and wherein the pulling blade engages the cutting blade holder to drive the resilient member to deform such that the cutting edge of the cutting blade protrudes beyond the anvil stapling surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/119606 WO2021077513A1 (en) | 2019-10-23 | 2019-11-20 | Surgical instrument |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910068399 | 2019-01-24 | ||
| CN201910068399X | 2019-01-24 |
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| CN111466981A true CN111466981A (en) | 2020-07-31 |
| CN111466981B CN111466981B (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911134668.4A Active CN111466981B (en) | 2019-01-24 | 2019-11-19 | Nail bin assembly and surgical operation instrument |
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| CN111466981B (en) | 2021-05-28 |
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