CN112914653B - Nail bin assembly of endoscope anastomat - Google Patents
Nail bin assembly of endoscope anastomat Download PDFInfo
- Publication number
- CN112914653B CN112914653B CN202110331284.2A CN202110331284A CN112914653B CN 112914653 B CN112914653 B CN 112914653B CN 202110331284 A CN202110331284 A CN 202110331284A CN 112914653 B CN112914653 B CN 112914653B
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- nail
- ladder plane
- protective shell
- staple
- elastic sheet
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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
-
- 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
Abstract
The invention relates to the technical field of medical instruments, and particularly provides a nail bin assembly of an endoscopic anastomat, which comprises a bin body, wherein the center of the bin body is provided with a cutting channel, and the cutting channel divides the bin body into two nail cavities; the protective cases are arranged in the stitching nail cavities side by side, guide grooves are formed in the inner walls of the protective cases, and the top ends of the guide grooves extend upwards to form end grooves; each protective shell is internally provided with a supporting block, and the side wall of each supporting block is in sliding connection with the inner wall of each protective shell; the nail seat comprises a base plate, an elastic sheet and clamping blocks, the base plate is fixedly connected with the supporting block, two ends of the base plate are slidably mounted in the guide grooves, the elastic sheet is fixed at the bottom of the base plate, and the two ends of the elastic sheet are respectively fixed with one clamping block. Support the nail foot of seam nail through the guide way, avoid the seam nail to take place the slope at the transportation with sew up the in-process and lead to the seam nail card to die the inefficacy, drive the nail seat through the supporting shoe and reciprocate along the protective housing, can make a plurality of seam nail simultaneous movement accomplish simultaneously and sew up the operation, improved the accuracy of sewing up.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a nail bin assembly of an endoscopic anastomat.
Background
The anastomat is a medical instrument widely applied to surgical operations, in recent years, along with the continuous improvement of the scientific and technical level of China, the design and manufacturing technology of anastomat products is greatly improved, the anastomat is applied to end-to-end, end-to-side and side-to-side anastomosis of various surgical operations such as esophagus, stomach, duodenum, colon, rectum, biliary tract, hemorrhoid and the like, manual suturing is gradually replaced, a nail bin of the existing endoscopic anastomat is difficult to wrap the nail, the nail is easy to loosen or incline, the nail falls off in the nail transportation process, and the working reliability of the anastomat is greatly reduced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problem that staples in the existing staple cartridge assembly are easy to loosen and fall off, the invention provides a staple cartridge assembly of an endoscope anastomat to solve the problem.
The technical scheme adopted by the invention for solving the technical problems is as follows: a nail bin assembly of an endoscope anastomat comprises a bin body, wherein a cutting channel is formed in the center of the bin body, the cutting channel divides the bin body into two nail cavities, and a cutter pushing seam is formed in one end of each nail cavity; the protective shells are arranged in the staple cavities side by side, three groups of guide grooves which are formed into one group in pairs are formed in the inner walls of the protective shells, the top end of each group of guide grooves extends upwards to form a pair of end grooves, and a push broach groove penetrating through the protective shells is formed in the protective shells corresponding to the push broach seams; the supporting blocks are arranged in each protective shell, the side walls of the supporting blocks are connected with the inner wall of each protective shell in a sliding mode, and the edges of the bottoms of the supporting blocks are provided with chamfer angles; the nail seat, every install three nail seat on the supporting shoe, every nail seat corresponds and sets up in one of them a set of guide way, the surface in nail chamber corresponds waist type hole has been seted up to the nail seat, and every pair of end slot corresponds the setting and is in the both ends in waist type hole just stretch out waist type hole, the nail seat includes backing plate, shell fragment and clamp splice, the backing plate with supporting shoe fixed connection, the both ends slidable mounting of backing plate is in the guide way, the middle part of shell fragment is fixed the bottom of backing plate, the both ends of shell fragment are fixed with a clamp splice respectively, work as when the shell fragment is in original state, two the interval of clamp splice is minimum.
Preferably, the top ends of the opposing faces of each pair of end slots extend perpendicularly outwardly to form stops.
Preferably, each clamping block is provided with a slope surface matched with the stop block, the slope surfaces on the clamping blocks at two ends of the elastic sheet are oppositely arranged and form a groove which is gradually narrowed from top to bottom, and when the stop block moves to be abutted against the slope surface, the stop block is positioned in the groove.
Preferably, the upper surface of each staple cavity is provided with three step planes, the three step planes are respectively a first step plane, a second step plane and a third step plane, the height of the three step planes is gradually reduced from the cutting channel to two sides of the cutting channel, wherein the first step plane is close to the cutting channel, the second step plane is located between the first step plane and the third step plane, and the three waist-shaped holes corresponding to the three staple seats on the same supporting block are respectively arranged on the first step plane, the second step plane and the third step plane.
Preferably, the top of the protective shell forms three step surfaces corresponding to the staple cavities, and each step surface is provided with a pair of end grooves.
Preferably, the three nail seats on each supporting block are arranged in a shape of Chinese character 'pin' in a projection towards the supporting block.
Preferably, the height difference of the three tie plates on each support block is identical to the height difference of the three step planes.
Preferably, the pusher slit is the same as the blade width of the pusher, and after the pusher is inserted into the staple cavity along the pusher slit, the pusher sequentially passes through each pusher slot and jacks up the supporting block in the protective shell.
The invention has the beneficial effects that: the one of which is provided with the supporting shoe, follows closely seat and protective housing, is equipped with the guide way on the protective housing, supports the nail foot of seam nail through the guide way, avoids the seam nail to take place the slope at the transportation with sew up the in-process and leads to the seam nail card to die the inefficacy, drives nail seat through the supporting shoe and reciprocates along the protective housing, can make a plurality of seam nail simultaneous movement accomplish simultaneously and sew up the operation, has improved sutural accuracy.
And secondly, the guide groove extends upwards to form an end groove, and the end groove extends out of the suturing nail cavity to form a bulge, so that the friction force between the contact surfaces of the suturing nail cavity and the tissue is increased, and the tissue is prevented from slipping when being sutured.
Its third, the surface in the nail seam chamber is the notch cuttype setting, and the top of protective housing corresponds the nail seam chamber and sets up the step face to and the ladder that three backing plate on every supporting seat corresponds nail seam chamber surface forms the difference in height, makes the anastomat press from both sides tightly the back and the nail seam is sewing up the back, by the portion of sewing up of treating of tissue to normal tissue formation pressure differential transition, has improved the effect of sewing up.
Drawings
The invention is further illustrated by the following examples in conjunction with the drawings.
FIG. 1 is a schematic structural view of a preferred embodiment of a staple cartridge assembly of an endoscopic stapler of the present invention;
FIG. 2 is a bottom schematic view of a staple cartridge assembly of an endoscopic stapler of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a state diagram of the nail seat in the protective shell of the nail bin assembly of the endoscopic stapler of the invention when not lifted;
FIG. 5 is a state diagram of the nail seat in the protection shell of the nail bin assembly of the endoscopic stapler of the invention after being lifted;
FIG. 6 is a schematic structural view of an end slot of a staple cartridge assembly of an endoscopic stapler of the present invention;
FIG. 7 is a schematic view of the matching state of an end slot and a nail seat of a nail bin assembly of the endoscopic stapler according to the invention;
FIG. 8 is a schematic structural diagram of a supporting block and a nail seat of a nail bin assembly of the endoscopic stapler of the invention;
FIG. 9 is a structural schematic diagram of a nail seat of a nail cartridge assembly of the endoscopic stapler of the invention.
In the figure, 1, a cabin body, 2, a cutting channel, 3, a staple cavity, 301, a push knife seam, 4, a protective shell, 5, a guide groove, 6, a staple, 7, a supporting block, 8, a staple seat, 9, a waist-shaped hole, 10, a step surface, 401, a push knife groove, 501, an end groove, 801, a backing plate, 802, an elastic sheet, 803, a clamping block, 5011, a stop block, 5012, a slope surface, 302, a first step plane, 303, a second step plane, 304 and a third step plane.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.
Furthermore, the terms "first," "second," and the like 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. 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, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 9, the present invention provides an embodiment of a nail bin assembly of an endoscopic stapler, including a bin body 1, wherein a cutting channel 2 is provided in the center of the bin body 1, when the stapler is clamped, a cutting knife can cut tissue along the cutting channel 2, the cutting channel 2 divides the bin body 1 into two staple cavities 3, one end of each staple cavity 3 is provided with a push knife seam 301, and the push knife seam 301 is as wide as a blade of the push knife;
a plurality of protective casings 4 set up side by side in the nail chamber 3, set up two double-row three group's guide ways 5 for a set of on the inner wall of protective casing 4, when the nail 6 does not use, the nail foot slip block of nail 6 is in guide ways 5, thereby support nail 6 through guide ways 5 and prevent that nail 6 from taking place the dead phenomenon of slope card in the transportation, the top of every group guide ways 5 upwards extends and forms a pair of end groove 501, the support distance to nail 6 has been prolonged through end groove 501, avoid nail 6 to take place the slope at the sewing in-process, it sets up the broach groove 401 that runs through protective casing 4 to correspond broach seam 301 on protective casing 4.
Each protective shell 4 is internally provided with a supporting block 7, the supporting block 7 can move up and down along the protective shell 4 due to the sliding connection of the side wall of the supporting block 7 and the inner wall of the protective shell 4, the edge of the bottom of the supporting block 7 is provided with a chamfer angle, a gap is formed at the bottom of the supporting block 7, a push knife can conveniently extend into the lower part of the supporting block 7 to jack up the supporting block 7, and after the push knife is inserted into the sewing nail cavity 3 along the push knife seam 301, the push knife sequentially penetrates through the push knife grooves 401 on each protective shell 4 and jacks up the supporting block 7 in the protective shell 4.
Each support block 7 is provided with three nail seats 8, each nail seat 8 is correspondingly arranged in one group of guide grooves 5, each nail seat 8 comprises a cushion plate 801, an elastic sheet 802 and clamping blocks 803, the cushion plate 801 is fixedly connected with the support block 7, two ends of the cushion plate 801 are slidably arranged in the guide grooves 5, nail feet of the nails 6 are upwards placed on the cushion plate 801, the nail feet of the nails 6 are positioned in the guide grooves 5, and the middle of the elastic sheet 802 is fixed at the bottom of the cushion plate 801, so that two ends of the elastic sheet 802 can move, two ends of the elastic sheet 802 are respectively fixed with one clamping block 803, when the elastic sheet 802 is in an original state, the distance between the two clamping blocks 803 is minimum, namely the clamping blocks 803 at two ends of the elastic sheet 802 are in a clamping state, the nail bodies of the nails 6 are clamped through the clamping blocks 803, so that the nail bodies can be always fixed on the cushion plate 801, and the nails 6 are prevented from falling off in the transportation process.
The top ends of the opposite surfaces of each pair of end grooves 501 extend outwards vertically to form a stop 5011, each clamping block 803 is provided with a slope 5012 matched with the stop 5011, the slopes 5012 on the clamping blocks 803 positioned at the two ends of the same elastic sheet 802 are oppositely arranged and form a bevel gradually narrowed from top to bottom, the nail seat 8 moves upwards along with the support block 7 in the process of jacking up the support block by a push broach, when the stop 5011 moves to abut against the slope 5012, the stop 5011 is positioned in the bevel, then the stop 5011 continues to move upwards, the position of the stop 5011 keeps unchanged due to gradual narrowing of the bevel, so that the opening of the bevel is enlarged, namely the two clamping blocks 803 open towards the two sides, at the moment, the staple 6 clamped by the clamping blocks 803 is loosened, so that the staple 6 can smoothly separate from the nail seat 8, the tissue suturing operation is completed, and the staple seat 8 is prevented from pulling the stapled staple 6 after the stapler is opened; when the staple holder 8 is not fully jacked up and the staples 6 are not triggered, the bevel is not propped open by the stop block 5011 at the moment, and the clamping effect on the staples 6 is continuously kept, so that after the push broach exits the push-knife groove 401, the staple holder 8 falls down to drive the staples 6 to return to the protective shell 4, and the staples 6 are prevented from falling off in the tissue.
The upper surface of each staple cavity 3 is provided with three step planes, the three step planes are respectively a first step plane 302, a second step plane 303 and a third step plane 304, the height of the three step planes is gradually reduced from the cutting channel 2 to the two sides of the cutting channel 2, wherein the first step plane 302 is close to the cutting channel 2, the second step plane 303 is positioned between the first step plane 302 and the third step plane 304, the surface of the staple cavity 3 corresponds to the staple seat 8 and is provided with a waist-shaped hole 9, the three waist-shaped holes 9 corresponding to the three staple seats 8 on the same supporting block 7 are respectively arranged on the first step plane 302, the second step plane 303 and the third step plane 304, after the stapler clamps tissues, the upper surface of the staple cavity 3 is tightly attached to the tissues, at the moment, the pressure applied to the tissues to be cut is gradually increased from the two sides to the positions to be cut through the arrangement of the three step planes with gradually reduced heights, the edge of the step planes increases the friction force between the staple cartridge and the tissues, and the tissues are prevented from sliding.
The top of protective housing 4 corresponds staple chamber 3 and forms three step face 10, all have a pair of end groove 501 on every step face 10, every pair of end groove 501 corresponds the setting and just stretches out waist type hole 9 at the both ends of waist type hole 9, end groove 501 protrudes step face 10 and forms the arch promptly, consequently, after the surface and the tissue laminating in staple chamber 3, end groove 501 can effectively increase the frictional force between staple chamber 3 and tissue, further avoid staple 6 to organize when sewing up and produce and slide, the quality of sewing up has been improved.
Three nail seat 8 on every supporting shoe 7 is "article" font to be arranged towards the projection of supporting shoe 7, evenly lay the back when a plurality of supporting shoes 7 are followed the staple chamber 3 direction, the staggered joint arranges between two adjacent nail seats 8, the stitching effect of staple 6 has been improved, the difference in height of three backing plate 801 on every supporting shoe 7 is unanimous with the difference in height on three step plane, consequently, after supporting shoe 7 is by the jack-up, the difference in height of backing plate 801 can complement the difference in height on step plane, thereby make staple 6 on three nail seat 8 all can stretch out and stretch out length keep unanimous from the step plane of difference, form the pressure gradient of sewing up, improve the stitching effect.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of terms does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides a nail storehouse subassembly of chamber mirror anastomat which characterized in that: the cutting device comprises a bin body, wherein a cutting channel is formed in the center of the bin body, the cutting channel divides the bin body into two staple cavities, and one end of each staple cavity is provided with a cutter pushing seam;
the protective shell is provided with a plurality of protective shells in parallel in the staple cavities, three groups of guide grooves which are two by two in one group are formed in the inner wall of the protective shell, the top end of each group of guide grooves extends upwards to form a pair of end grooves, and a push broach groove penetrating through the protective shell is formed in the protective shell corresponding to the push broach seam;
the supporting blocks are arranged in each protective shell, the side walls of the supporting blocks are connected with the inner wall of each protective shell in a sliding mode, and the edges of the bottoms of the supporting blocks are provided with chamfer angles;
the nail seat comprises a backing plate, an elastic sheet and clamping blocks, wherein the backing plate is fixedly connected with the supporting block, two ends of the backing plate are slidably installed in the guide grooves, the middle part of the elastic sheet is fixed at the bottom of the backing plate, two ends of the elastic sheet are respectively fixed with one clamping block, and when the elastic sheet is in an original state, the distance between the two clamping blocks is the smallest;
the top ends of the opposite surfaces of each pair of end grooves vertically extend outwards to form a stop block;
each clamping block is provided with a slope surface matched with the stop block, the slope surfaces on the clamping blocks positioned at two ends of the elastic sheet are oppositely arranged and form a groove which is gradually narrowed from top to bottom, and when the stop block moves to be abutted against the slope surfaces, the stop block is positioned in the groove.
2. The staple cartridge assembly of an endoscopic stapler of claim 1, wherein: every the upper surface in nail chamber is provided with three ladder plane, and is three the ladder plane is first ladder plane, second ladder plane and third ladder plane respectively, and is three the height in ladder plane is risen by cutting passageway and is reduced to cutting passageway's both sides gradually, wherein, first ladder plane is close to cutting passageway, the second ladder plane is located between first ladder plane and the third ladder plane, and three on the same supporting shoe the corresponding three of nail seat waist type hole sets up respectively first ladder plane, second ladder plane and on the third ladder plane.
3. The staple cartridge assembly of an endoscopic stapler of claim 2, wherein: the top of protective housing corresponds the staple chamber forms three step face, all have a pair of end groove on every step face.
4. The staple cartridge assembly of an endoscopic stapler of claim 3, wherein: the three nail seats on each supporting block are arranged in a shape like a Chinese character 'pin' towards the projection of the supporting block.
5. The staple cartridge assembly of an endoscopic stapler of claim 4, wherein: the height difference of the three base plates on each supporting block is consistent with the height difference of the three step planes.
6. The staple cartridge assembly of an endoscopic stapler of claim 5, wherein: the width of the push broach slot is consistent with that of the blade of the push broach, and after the push broach is inserted into the staple cavity along the push broach slot, the push broach sequentially penetrates through each push broach slot and jacks up the supporting block positioned in the protective shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110331284.2A CN112914653B (en) | 2021-03-29 | 2021-03-29 | Nail bin assembly of endoscope anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110331284.2A CN112914653B (en) | 2021-03-29 | 2021-03-29 | Nail bin assembly of endoscope anastomat |
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| Publication Number | Publication Date |
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| CN112914653A CN112914653A (en) | 2021-06-08 |
| CN112914653B true CN112914653B (en) | 2023-03-07 |
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| CN202110331284.2A Active CN112914653B (en) | 2021-03-29 | 2021-03-29 | Nail bin assembly of endoscope anastomat |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113749713A (en) * | 2021-10-19 | 2021-12-07 | 四川大学华西第二医院 | Step-by-step arc nail bin |
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| CN112914653A (en) | 2021-06-08 |
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