CN215349191U - Osculating assembly and elbow anastomat thereof - Google Patents

Abstract

The utility model belongs to the field of auxiliary instruments of medical instruments, and particularly relates to an osculating component and a bent pipe anastomat. The osculating component comprises a nail bin sleeve; the guide shaft is positioned in the nail bin sleeve; the nail pusher assembly is arranged in the nail bin sleeve, is positioned between the guide shaft and the nail bin sleeve and is used for pushing out the suturing nails in the nail bin sleeve; the pushing nail seat assembly is positioned at the end part of the nail bin sleeve, and the extension part of the pushing nail seat assembly is suitable for being inserted into the inner cavity of the guide shaft; wherein the staple cartridge sleeve comprises a staple cartridge tube; the nail bin cover is covered at the end part of the nail bin pipe; the upper surface of the nail bin cover is a convex cambered surface, and the contact part of the nail bin cover and the nail bin pipe is transited through a circular arc surface. The design of the convex cambered surface of the nail bin cover of the osculating component has the advantages of reducing the damage to tissues when an instrument squeezes the tissues and reducing the surgical complications.

Description

Osculating assembly and elbow anastomat thereof

Technical Field

The utility model belongs to the field of auxiliary instruments of medical instruments, and particularly relates to an osculating component and a bent pipe anastomat thereof.

Background

An anastomat is a medical auxiliary instrument widely applied to surgical operations and used for suturing tissues, and compared with the conventional manual suturing, the anastomat has the advantages of simplicity in operation, operation time saving and reliable effect.

The existing anastomat generally adopts a single row of staples to perform anastomosis, the single row of staples are easy to cause the condition that the anastomotic opening is too large due to less stapled tissues, and the single row of staples are designed to require the anastomat to be used for multiple times when overlong tissues are sutured. Therefore, the existing design is mostly a three-row nail design so as to increase the nail-jointed tissue and reduce the problem of overlarge anastomotic stoma. However, the design of using three rows of staples alone has its drawbacks, and the conventional three-row staple stapler may cause the narrow anastomotic orifice, and the blood supply of the tissue at the anastomotic orifice is not good, and the compression of the stapled tissue by the instrument is large, so that it is urgently needed to solve the above clinical problems.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: to reduce compression damage to the tissue by the stapler.

The technical scheme adopted by the utility model for solving the technical problems is as follows: in a first aspect, the osculating assembly comprises a staple cartridge sleeve; the guide shaft is positioned in the nail bin sleeve; the nail pusher assembly is arranged in the nail bin sleeve, is positioned between the guide shaft and the nail bin sleeve and is used for pushing out the suturing nails in the nail bin sleeve; the pushing nail seat assembly is positioned at the end part of the nail bin sleeve, and the extension part of the pushing nail seat assembly is suitable for being inserted into the inner cavity of the guide shaft; wherein the staple cartridge sleeve comprises a staple cartridge tube; the nail bin cover is covered at the end part of the nail bin pipe; the upper surface of the nail bin cover is a convex cambered surface, and the contact part of the nail bin cover and the nail bin pipe is transited through a circular arc surface.

Further, the top of the nail bin cover is an annular surface, and the inside of the annular surface is suitable for the extension part of the nail seat assembly to pass through; and a plurality of clamping teeth are uniformly distributed on the side surface of the nail bin cover and are clamped in the mounting holes on the side surface of the nail bin pipe.

Furthermore, a plurality of nail holes suitable for pushing out suturing nails are distributed on the annular surface at intervals; the nail holes are concentrically arranged from inside to outside along the circumference of the annular surface, and a first nail hole ring, a second nail hole ring and a third nail hole ring are arranged; the nail holes in the first nail hole ring and the nail holes in the third nail hole ring are arranged in parallel; the nail holes in the second nail hole ring and the nail holes in the third nail hole ring are arranged in a staggered mode.

Further, the nail pusher component comprises a guide sleeve which is sleeved outside the guide shaft in a sliding manner; the mounting plate is positioned on the guide sleeve and is arranged in the nail bin sleeve; the nail pushing sheets are distributed along the circumference of the mounting plate to form a first nail pushing sheet ring, a second nail pushing sheet ring and a third nail pushing sheet ring which correspond to the nail holes one by one, and the heights of the first nail pushing sheet ring, the second nail pushing sheet ring and the third nail pushing sheet ring are gradually reduced from inside to outside in a step shape; the nail pushing sheet is of a flat sheet structure and is vertically fixed on the mounting plate; the top of the nail pushing sheet is provided with a nail placing position; the nail placing position comprises two semicircular nail grooves which are symmetrically arranged and a groove which is positioned between the two semicircular nail grooves.

Further, the nail pusher assembly also comprises a flange ring positioned on the mounting plate; the flange ring is a circle of short tooth sheets arranged at the inner side of the first nail pushing sheet ring at intervals.

Furthermore, the nail pusher component also comprises a plurality of limiting columns positioned on the mounting plate; the limiting column is arranged between the second nail pushing sheet ring and the flange ring, and the height of the limiting column is lower than that of the nail pushing sheet so as to limit the height of the nail pushing sheet for pushing the nail hole.

Further, the nail pusher assembly also comprises a connecting piece; the connecting piece is suitable for connecting the first nail pushing sheet ring and the third nail pushing sheet ring and is fixedly connected with the flange ring.

Further, the guide shaft includes a shaft body having a hollow interior to form an interior cavity of the guide shaft; and the positioning columns are uniformly arranged on the inner wall of the shaft body at intervals.

Further, the nail abutting seat assembly comprises a semispherical nail abutting seat body and the extension part positioned on the nail abutting seat; the extension part comprises a clamp spring pipe and is fixedly connected with the nail abutting seat body; the clamp spring piece is arranged on the side surface of the clamp spring pipe; the positioning ribs are uniformly arranged on the side surface of the clamp spring pipe at intervals; when the extension part of the nail abutting seat assembly is inserted into the inner cavity of the guide shaft, the positioning ribs and the positioning columns are alternately inserted and clamped through the clamping spring pieces.

On the other hand, the utility model provides an elbow anastomat which comprises the osculating component, wherein the osculating component is arranged at the front end of the elbow anastomat.

Furthermore, the elbow anastomat also comprises a shell, one end of the shell is connected with the bottom of the nail bin sleeve and is suitable for wrapping the internal components; the bent push rod is arranged in the shell, and one end of the bent push rod is abutted against the lower part of the guide sleeve of the nail pusher component; the screw rod assembly is arranged in the shell and connected with the lower end of the guide shaft; the movable handle is connected with the other end of the bent push rod and used for exciting the bent push rod; and the adjusting nut assembly is arranged at the tail end of the shell, and one end of the adjusting nut assembly is connected with the screw rod assembly.

The utility model has the beneficial effects that: when tissues are anastomosed and cut, the upper standard surface of the nail bin cover is designed to be a convex arc surface, the contact part of the nail bin cover and the nail bin pipe is transited through an arc surface, and when the nail abutting seat assembly is contacted with the upper surface of the nail bin cover in clinical use, the force when the nail abutting seat assembly is contacted with the anastomosed and cut tissues can be dispersed and mild by the arrangement of the arc surface and the fillet, so that the damage to the tissues when an instrument squeezes the tissues can be reduced, and the occurrence of surgical complications can be reduced.

Drawings

The utility model is further illustrated by the following figures and examples.

FIG. 1 is a front view of a cartridge sleeve;

FIG. 2 is a perspective view of the cartridge sleeve;

FIG. 3 is an enlarged schematic view at A in FIG. 1;

FIG. 4 is a schematic view of the structure of the magazine cover;

FIG. 5 is a cross-sectional view of the magazine cover;

FIG. 6 is a cross-sectional view of the cartridge sleeve;

FIG. 7 is a cross-sectional view of the staple pusher assembly;

FIG. 8 is a schematic view of the position of the staple pusher tab in the staple pusher assembly;

FIG. 9 is a schematic structural view of the nail seat assembly;

FIG. 10 is a side view of the nail holder assembly;

FIG. 11 is a schematic view of an elbow stapler;

FIG. 12 is a partial cross-sectional view of an elbow stapler;

in the figure:

the nail magazine comprises a osculating component 1, a nail magazine sleeve 11, a nail magazine tube 111, a circular tube 1111, an inclined tube 1112, a threaded tube 1113, a mounting hole 1114, a nail magazine cover 112, a latch 1121, a first nail hole ring 1122, a second nail hole ring 1123, a third nail hole ring 1124, a convex arc 1125, an arc 113, a nail hole 114, a guide shaft 12, a shaft body 121, a positioning column 122, a nail pusher component 13, a guide sleeve 131, a mounting plate 132, a nail pusher 133, a first nail pusher ring 1331, a second nail pusher ring 1332, a third nail pusher ring 1333, a nail placing position 1334, a flange ring 134, a limiting column 135, a connecting piece 136, a nail pushing seat assembly 14, a nail pushing seat body 141, a nail pushing hole 1411, an extending part 142, a snap spring 1421, a snap spring 1422 and a positioning rib 1423;

a housing 2;

bending the push rod 3;

a screw rod assembly 4;

a movable handle 5;

an adjusting nut assembly 6;

an indicator needle 7;

and (7) an insurance 8.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The osculating assembly 1 of the present invention sews tissue as follows: when the nail pushing device is used, the nail pushing seat assembly 14 is firstly placed in the tissue to be sutured, then the gap between the nail pushing seat assembly 14 and the nail bin cover 112 is adjusted to a proper position so that the nail pushing seat assembly 14 pushes the nail bin cover 112 tightly and clamps the tissue, and then the nail pusher component 13 is excited to push out the suturing nails in the nail bin sleeve 11 to the tissue to be sutured, so that suturing is realized. The following is a detailed description of the specific structure of the kiss-cut assembly 1.

As shown in fig. 1-10, the osculating assembly 1 includes a cartridge sleeve 11; the guide shaft 12 is positioned in the nail bin sleeve 11; the nail pusher assembly 13 is arranged in the nail bin sleeve 11, is positioned between the guide shaft 12 and the nail bin sleeve 11, and is used for pushing out the suturing nails in the nail bin sleeve 11; the nail abutting seat assembly 14 is positioned at the end part of the nail box sleeve 11, and the extension part 142 of the nail abutting seat assembly is suitable for being inserted into the inner cavity of the guide shaft 12; wherein the cartridge sleeve 11 comprises a cartridge tube 111; as shown in fig. 4-5, the cartridge cover 112 covers the end of the cartridge tube 111; the upper surface of the nail bin cover 112 is a convex cambered surface 1125, and the contact position of the nail bin cover 112 and the nail bin tube 111 is transited through a circular cambered surface 113. In clinical use, the contact surface is set to be a cambered surface, and at the moment, when the nail abutting seat assembly 14 and the nail bin cover 112 contact and sew the tissue, the contact surface of the tissue to be sutured is increased, so that the force applied to the tissue to be sutured is more uniform and mild, and the damage to the tissue when the tissue is squeezed by an instrument can be reduced; the chamfer angle of the nail bin cover 112 and the nail bin tube 111 is an arc surface 113, and is a right angle compared with the chamfer angle, so that the stress of the tissue to be sutured at the edge of the chamfer angle is changed from line contact to surface contact, the stress surface is increased, the squeezing of the tissue by an instrument can be reduced, and the occurrence of surgical complications is reduced.

As shown in fig. 1-2, as an optional embodiment of the nail cartridge tube 111, the nail cartridge sleeve 11 includes the nail cartridge tube 111, the upper portion of the nail cartridge tube 111 is integrally a thin-walled circular tube 1111 having a cavity, a plurality of mounting holes 1114 uniformly arranged on the side wall of the circular tube 1111, the middle portion of the nail cartridge tube 111 is an inclined tube 1112 gradually contracting from the bottom surface of the circular tube 1111, the lower portion of the nail cartridge tube 111 is a threaded tube 1113, and mounting threads are arranged on the outer surface of the side wall of the threaded tube 1113 and adapted to be screwed with the mounting threads on the inner wall of one end of the shell 2 of the elbow anastomat.

As shown in FIG. 4, as an alternative embodiment of the magazine cover 112, the magazine cover 11 comprises a magazine cover 112, the top of the magazine cover 112 is an annular surface, the annular surface is adapted to surround the surface of the cavity of the circular tube 1111 at the upper part of the magazine tube 111, the inner annular hole of the annular surface is adapted to pass through the extension portion 142 of the nail seat assembly 14, the bottom of the magazine cover 112 is inserted into the cavity of the circular tube 1111 of the magazine tube 111, and a plurality of clamping teeth 1121 are uniformly arranged on the side surface of the magazine cover 112 and are matched with the mounting holes 1114 on the side wall of the circular tube 1111 of the magazine cover 112, so as to clamp the clamping teeth 1121 in the mounting holes 1114 to fix the relative position of the magazine cover 112 and the magazine tube 111.

Further, a plurality of nail holes 114 suitable for pushing out the staples are distributed on the annular surface at intervals, the nail holes 114 are uniformly distributed between the nail holes 114 at intervals, and the nail holes 114 penetrate from the upper end surface of the staple cartridge cover 112 to the lower end surface of the staple cartridge cover 112; the nail holes 114 are concentrically arranged from inside to outside along the circumference of the annular surface to form a first nail hole ring 1122, a second nail hole ring 1123 and a third nail hole ring 1124; and the peg holes 114 in the first peg-hole loop 1122 are aligned in parallel with the peg holes 114 in the third peg-hole loop 1124; the nail holes 114 in the second eyelet 1123 are staggered from the nail holes 114 in the third eyelet 1124 such that the nail holes 114 in the first eyelet 1122 and the third eyelet 1124 are both inside and outside the space between two adjacent nail holes 114 in the second eyelet 1123.

As a preferred embodiment of the staple holes 114, the cross-sectional shape of the staple holes 114 is oblong hexagon, which is more consistent with the shape of conventional staples after formation and facilitates the ejection of the staples from the staple holes, and the number of the staple holes 114 per loop is preferably 14.

As an alternative embodiment of the nail pusher assembly 13, as shown in fig. 6-8, the nail pusher assembly 13 comprises a guide sleeve 131 which is slidably sleeved outside the guide shaft 12; the mounting plate 132 is positioned on the guide sleeve 131 and arranged in the nail bin sleeve 11, the mounting plate 132 is a circular ring plate, the circular hole is communicated with the guide sleeve 131, and the guide sleeve 131 can be used for guiding the mounting plate 132 to move along the axial direction parallel to the guide shaft 12; as shown in fig. 3, the plurality of staple pushing sheets 131 are distributed along the circumference of the mounting plate 132 to form a first staple pushing sheet ring 1331, a second staple pushing sheet ring 1332 and a third staple pushing sheet ring 1333, so as to correspond to the staple holes on the staple cartridge cover 112 one by one, and the heights of the first staple pushing sheet ring 1331, the second staple pushing sheet ring 1332 and the third staple pushing sheet ring 1333 are gradually decreased from inside to outside; the nail pushing sheet 131 is of a flat sheet structure and is vertically and fixedly connected to the mounting plate 132; the top of the nail pushing sheet 131 is provided with a nail placing position 1334; the nail placing position 1334 comprises two semicircular nail grooves which are symmetrically arranged and a groove which is positioned between the two semicircular nail grooves, and the guide sleeve 131 can push the nail pushing sheet 133 away from or close to the nail hole 114. As shown in fig. 3, the three circles of decreasing step-shaped staple pushing sheets 133 ensure that the instrument not only can ensure good suturing effect of the anastomotic stoma, but also can increase the suturing diameter and ensure good blood supply of the anastomotic stoma when being used clinically.

Further, the nail pusher assembly 13 further comprises a flange ring 134 positioned on the fixed mounting plate 132; the flange ring 134 is a ring of short teeth arranged at intervals inside the first nail pushing ring 1331.

Further, the nail pusher assembly 13 further includes a plurality of limiting posts 135 fixedly disposed on the mounting plate 132; the limiting column 135 is disposed between the second nail-pushing ring 1332 and the flange ring 134, and has a height lower than the nail-pushing sheet 133, so as to limit the height of the nail-pushing sheet 133 pushing out of the nail hole 114.

Further, the nail pusher assembly 13 further comprises a connecting piece 136; the connecting member 136 is adapted to fixedly connect the first nail-pushing sheet ring 1331 and the third nail-pushing sheet ring 1333, and penetrates out of the third nail-pushing sheet ring to be fixedly connected with the flange ring 134, and the connecting member 136 is as high as the limiting column 135, and is in a short column structure vertically arranged on the mounting plate 132, so as to prevent the nail-pushing sheet 133 from radially jumping in the nail bin sleeve 11 during the process of pushing the annular knife.

In the present case, the nail pushing sheets 133 are independently arranged, and the nail pushing sheets 133 are fixedly connected to each other through the connecting member 136 to form an integral structure. Of course, the ejector pin pieces 133 and the connecting member 136 may be integrally formed.

As an alternative embodiment of the guide shaft 12, as shown in fig. 6, the guide shaft 12 includes a shaft body 121, which is hollow inside to form an inner cavity of the guide shaft 12; the positioning columns 122 are in a convex strip shape and are uniformly arranged on the inner wall of the shaft body 121 at intervals, the arrangement direction of the positioning columns 122 is parallel to the axial direction of the shaft body 121, the lower parts of the positioning columns 122 extend to form tube bodies, and the axis of the extended tube bodies is coaxial with the axis of the shaft body 121. One end of the guide shaft 12 is connected with the nail abutting seat assembly 14, the other end of the guide shaft is connected with the screw rod component 4, and the guide shaft 12 can regulate and control the nail abutting seat assembly 14 to be far away from or close to the nail bin sleeve 11 through the screw rod component 4.

As an alternative embodiment of the anvil assembly 14, as shown in fig. 9-10, the anvil assembly 14 and the cartridge sleeve 11 are correspondingly disposed components, which push the staple pusher assembly 13 with the staples in the cavity of the cartridge sleeve 11 out of the staple holes 114 and into contact with the anvil assembly 14, and finally the anvil assembly 14 and the cartridge sleeve 11 cooperate to press the staples, thereby facilitating staple formation. The nail seat assembly 14 includes a semi-spherical nail seat body 141 and the extension portion 142 on the nail seat.

Further, it is the round surface to support its hemisphere bottom of nail seat body 141, is equipped with the cooperation and pushes away the nail piece extrusion and sew up fashioned nail hole 1411 that supports of sewing up on the round surface, support hole both sides and be the semicircular nail groove that supports, the centre is the spacer block, and two pin heads that sew up the nail can enclose the circle in the sunken closure that extrudes of spacer block, and support the cooperation of nail groove and spacer block and can make the clearance between the pin head of sewing up the nail littleer, and the tissue contact of sewing up closely, the difficult fracture of wound.

Further, the extension portion 142 includes a clamp spring pipe 1421, one end of which is fixedly connected to the nail abutting seat body 141, and the other end of which is inserted into the guide shaft 12; the clamp spring piece 1422 is arranged on the outer side surface of the pipe wall of the clamp spring pipe 1421, the clamp spring piece 1422 is parallel to the axial direction of the clamp spring pipe 1421, and the clamp spring piece 1422 can be matched with the screw rod to fixedly connect the screw rod to one end of the guide shaft 12; and the positioning ribs 1423 are uniformly arranged on the side surface of the clamp spring pipe 1421 at intervals, and when the extension portion 142 of the nail abutting seat assembly 14 is inserted into the inner cavity of the guide shaft 12, the positioning ribs 1423 and the positioning columns 122 are alternately inserted and then clamped with the clamp spring pieces 1422.

As shown in fig. 11-12, the elbow anastomat comprises the osculating component 1, wherein the osculating component 1 is arranged at the front end of the elbow anastomat and is connected with the shell 2 through mounting threads at the bottom of the nail bin sleeve 11. The elbow anastomat further comprises a shell 2, wherein mounting threads are arranged on the inner wall of the shell at one end of the shell, correspond to the mounting threads at the bottom of the nail bin sleeve 11 and can be screwed and connected through corresponding threads, and the shell 2 is suitable for wrapping internal components of the elbow anastomat; the bent push rod 3 is arranged in the shell 2, one end of the bent push rod is in abutting connection with the lower part of the guide sleeve 131 of the nail pusher assembly 13, and the bent push rod 3 can push the guide sleeve 131 to move axially so as to push out the nail pushing sheet; the screw rod assembly 4 is arranged in the shell 2, one end of the screw rod assembly extends into the lower end of the guide shaft 12 and is connected with the guide shaft 12, and the screw rod assembly is clamped by a clamping spring piece 1422 so as not to slide; the movable handle 5 is connected with the other end of the bent push rod 3 and is used for exciting the bent push rod 3 to move and pushing the guide sleeve 131; and the adjusting nut component 6 is arranged at the tail end of the shell 2, one end of the adjusting nut component 6 is connected with the screw rod component 4, and the other end of the adjusting nut component 6 is used for rotating the adjusting nut component 6 to adjust the screw rod so as to adjust the size of a gap between the nail abutting seat assembly 14 and the nail bin sleeve 11.

The bent pipe anastomat provided by the utility model is specifically used in the following process: firstly, the nail abutting seat assembly 14 is detached and then extends into a tissue, the tissue to be sutured wraps the column and abuts against the nail abutting seat body 141, one end of the screw rod assembly 4 is penetrated through another tissue to be sutured, the other tissue to be sutured is placed on the surface of the nail bin cover 112 after the penetration, the screw rod assembly 4 and a clamp spring pipe 1421 at the lower end of the nail abutting seat body 141 are both inserted into the guide shaft 12 and are fixed with the positioning rib 1423 through a clamp spring 1422, and at the moment, the nail abutting seat assembly 14 is connected with the screw rod assembly 4; then, the adjusting nut component 6 is manually rotated, the adjusting nut component 6 is connected with the screw rod component 4, the screw rod component 4 is connected with the nail abutting seat assembly 14, the nail abutting seat assembly 14 is driven to move back and forth on the surface of the nail bin cover 112 by rotating the adjusting nut component 6, and the nail abutting seat assembly is moved to a proper position, namely, the tissue to be sutured, wrapped by the nail abutting seat body 141, is contacted and clamped with the other tissue to be sutured on the surface of the nail bin cover 112; when the osculating assembly 1 of the curved tube anastomat tightens the squeezed tissue and the indicator 7 shows safe operability, the safety 8 is opened, the movable handle 5 is manually triggered, the movable handle 5 pushes the curved push rod 3, one end of the curved push rod 3 is in abutting connection with the lower part of the guide sleeve 131 of the staple pusher assembly 13, the curved push rod 3 pushes the guide sleeve 131 to axially move, the guide sleeve 131 pushes out the staple on the staple pushing sheet 133 on the mounting plate 132 and the staple on the staple pushing sheet 133, the staple pierces the tissue to be sutured, and the staple pushing sheet 133 and the staple abutting hole 1411 on the staple abutting seat body 141 are mutually matched to extrude the staple between the staple pushing sheet 133 and the staple abutting hole 1411 to form, so that the suturing is completed.

In the description of the embodiments of the present invention, 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 the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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 device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, 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 several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.

In light of the foregoing description of preferred embodiments in accordance with the utility model, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the utility model. 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 (10)

1. An osculating component is characterized by comprising a nail bin sleeve; the guide shaft is positioned in the nail bin sleeve; the nail pusher assembly is arranged in the nail bin sleeve, is positioned between the guide shaft and the nail bin sleeve and is used for pushing out the suturing nails in the nail bin sleeve; the pushing nail seat assembly is positioned at the end part of the nail bin sleeve, and the extension part of the pushing nail seat assembly is suitable for being inserted into the inner cavity of the guide shaft; wherein the staple cartridge sleeve comprises a staple cartridge tube; the nail bin cover is covered at the end part of the nail bin pipe; the upper surface of the nail bin cover is a convex cambered surface, and the contact part of the nail bin cover and the nail bin pipe is transited through a circular arc surface.

2. The osculating assembly of claim 1, wherein the top of the magazine cover is an annular face, the interior of which is adapted to pass against an extension of a magazine assembly; and a plurality of clamping teeth are uniformly distributed on the side surface of the nail bin cover and are clamped in the mounting holes on the side surface of the nail bin pipe.

3. The osculating assembly according to claim 2, wherein a plurality of staple holes adapted to eject staples are spaced apart from each other on the annular surface; the nail holes are concentrically arranged from inside to outside along the circumference of the annular surface, and a first nail hole ring, a second nail hole ring and a third nail hole ring are arranged; the nail holes in the first nail hole ring and the nail holes in the third nail hole ring are arranged in parallel; the nail holes in the second nail hole ring and the nail holes in the third nail hole ring are arranged in a staggered mode.

4. The osculating assembly of claim 1, wherein the staple pusher assembly comprises a guide sleeve slidably fitted over an outer side of the guide shaft; the mounting plate is positioned on the guide sleeve and is arranged in the nail bin sleeve; the nail pushing sheets are distributed along the circumference of the mounting plate to form a first nail pushing sheet ring, a second nail pushing sheet ring and a third nail pushing sheet ring which correspond to the nail holes one by one, and the heights of the first nail pushing sheet ring, the second nail pushing sheet ring and the third nail pushing sheet ring are gradually reduced from inside to outside in a step shape; the nail pushing sheet is of a flat sheet structure and is vertically fixed on the mounting plate; the top of the nail pushing sheet is provided with a nail placing position; the nail placing position comprises two semicircular nail grooves which are symmetrically arranged and a groove which is positioned between the two semicircular nail grooves.

5. The osculating assembly of claim 4, wherein the staple pusher assembly further comprises a flange ring on the mounting plate; the flange ring is a circle of short tooth sheets arranged at the inner side of the first nail pushing sheet ring at intervals.

6. The osculating assembly of claim 5, wherein the staple pusher assembly further comprises a plurality of retaining posts on the mounting plate; the limiting column is arranged between the second nail pushing sheet ring and the flange ring, and the height of the limiting column is lower than that of the nail pushing sheet so as to limit the height of the nail pushing sheet for pushing the nail hole.

7. The osculating assembly of claim 5, wherein the staple pusher assembly further comprises a connector; the connecting piece is suitable for connecting the first nail pushing sheet ring and the third nail pushing sheet ring and is fixedly connected with the flange ring.

8. The osculating assembly of claim 1, wherein the guide shaft comprises a shaft body hollow inside to form an internal cavity of the guide shaft; and the positioning columns are uniformly arranged on the inner wall of the shaft body at intervals.

9. The osculating assembly of claim 8, wherein the anvil assembly comprises an anvil body in a semi-spherical shape and the extension on the anvil; the extension part comprises a clamp spring pipe and is fixedly connected with the nail abutting seat body; the clamp spring piece is arranged on the side surface of the clamp spring pipe; the positioning ribs are uniformly arranged on the side surface of the clamp spring pipe at intervals; when the extension part of the nail abutting seat assembly is inserted into the inner cavity of the guide shaft, the positioning ribs and the positioning columns are alternately inserted and clamped through the clamping spring pieces.

10. An elbow anastomat, which is characterized by comprising an osculating component as claimed in any one of claims 1 to 9, wherein the osculating component is arranged at the front end of the elbow anastomat; the shell, one end of which is connected with the bottom of the nail bin sleeve and is suitable for wrapping the internal components; the bent push rod is arranged in the shell, and one end of the bent push rod is abutted against the lower part of the guide sleeve of the nail pusher component; the screw rod assembly is arranged in the shell and connected with the lower end of the guide shaft; the movable handle is connected with the other end of the bent push rod and used for exciting the bent push rod; and the adjusting nut assembly is arranged at the tail end of the shell, and one end of the adjusting nut assembly is connected with the screw rod assembly.

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