CN213156137U

CN213156137U - Nail bin protection device for intracavity anastomat, execution end and anastomat

Info

Publication number: CN213156137U
Application number: CN202020981505.1U
Authority: CN
Inventors: 曹新东; 陆坚
Original assignee: Suzhou Frankenman Medical Equipment Co Ltd
Current assignee: Suzhou Frankenman Medical Equipment Co Ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-05-11
Anticipated expiration: 2030-06-02

Abstract

The utility model provides a nail bin protecting device for an intracavity anastomat, an anastomat executing end and an anastomat, wherein the nail bin protecting device comprises a nail blocking plate, a nail bin clamping piece, an elastic connecting piece and an anvil block plate; the nail baffle plate is vertical to the nail bin clamping piece, and one section of the nail baffle plate is connected with the anvil block abutting plate through the elastic connecting piece; when the nail bin clamping piece is positioned in the knife pushing groove, the lower surface of the nail blocking plate is abutted against the upper surface of the nail bin, and the upper surface of the anvil block abutting plate is abutted against the anvil block. The lower surface of the nail blocking plate is abutted against the upper surface of the nail bin through the elastic connecting piece, and the upper surface of the anvil block abutting plate is abutted against the anvil block, so that the falling of the sewing nail in the nail bin is prevented, and the technical problem that the sewing nail is easy to fall from the nail bin before being used in the prior art is solved.

Description

Nail bin protection device for intracavity anastomat, execution end and anastomat

Technical Field

The utility model relates to a medical instrument especially relates to a nail storehouse protection device execution end and anastomat for intracavity anastomat.

Background

The anastomat is used as a device for replacing the traditional manual suture, is convenient to use, tight and proper in tightness, particularly has the advantages of being fast in suture, simple and convenient to operate, few in side effects and operation complications and the like, enables the tumor operation which cannot be resected in the past to be resected at the focus, and is popular and advocated by clinical surgeons at home and abroad. A surgical stapler, such as an endoscopic cutting stapler, can include an end effector that can be moved or articulated relative to an elongate shaft assembly. The end effector is typically configured to secure tissue to be excised between clamping devices, which typically include structure therein configured to receive a staple cartridge. The handle portion for operation is then configured to control the closing of the clamping device, as well as the pushing of the blade to cut and the pushing of the staples to effect stapling. For example, patent application No. 200410087464.7 discloses a surgical stapling instrument with a multi-stroke firing having a backstop mechanism, specifically an endoluminal stapler, which includes a staple cartridge, i.e., a staple cartridge having a pusher slot for a cutting blade to move during tissue cutting, and an anvil corresponding to the staple cartridge, which is correspondingly provided with an anvil slot. The wedge-shaped push block pushes the cutter head to cut, meanwhile, the stitching nail is pushed upwards and deforms after meeting the anvil block, so that the stitching tissue state is formed.

However, in the prior art, the nail cartridge is usually pre-installed in a nail cartridge accommodating cavity at the end part of the anastomat and then packaged together for transportation or use; in the transportation or use process, if severe vibration or impact is encountered, the suturing nails in the nail bin are easy to fall off from the nail bin, and the technical problem that the suturing nails fall off is not well solved in the prior art, so that the device capable of protecting the nail bin is required to be provided to solve the technical problem.

Disclosure of Invention

The technical scheme of the utility model is realized like this:

the utility model provides a nail bin protection device for intracavity anastomat, intracavity anastomat includes the execution end, the execution end has nail bin and holds chamber, nail bin and anvil block, the nail bin is equipped with the nail bin and holds the intracavity, the nail bin holds the chamber and articulates with the anvil block is relative, the nail bin is equipped with the push-out knife groove, the anvil block is equipped with the anvil groove relative with the push-out knife groove;

the nail bin protecting device comprises a nail blocking plate, a nail bin clamping piece, an elastic connecting piece and an anvil block abutting plate; the nail blocking plate is perpendicular to the nail bin clamping piece, and one section of the nail blocking plate is connected with the anvil block abutting plate through the elastic connecting piece; when the nail bin clamping piece is positioned in the knife pushing groove, the lower surface of the nail baffle plate is abutted with the upper surface of the nail bin, and the upper surface of the anvil abutment plate is abutted with the anvil.

Further, the thickness of the nail bin clamping piece is matched with the width of the cutter pushing groove, and the length of the nail bin clamping piece is smaller than that of the cutter pushing groove; when the nail bin clamping piece is positioned in the knife pushing groove, one end of the nail bin clamping piece is abutted against one end of the knife pushing groove.

Further, the execution end further comprises a nail pushing wedge-shaped block, one end of the nail bin clamping piece is abutted to one end of the nail pushing groove, and the distance between the nail pushing wedge-shaped block and the other end of the nail bin clamping piece is smaller than the minimum distance for the nail pushing wedge-shaped block to push the nail bin to eject nails.

Further, when the nail bin clamping piece is positioned in the knife pushing groove, the distance from the lower surface of the other end of the nail bin clamping piece to the bottom of the knife pushing groove is larger than the height of the end part of the nail pushing wedge-shaped block.

Further, when the elastic connecting piece is in a natural state, the included angle between the nail blocking plate and the anvil abutting plate is larger than the maximum included angle between the nail bin and the anvil.

Furthermore, the elastic connecting piece is made of metal elastic materials and/or high polymer elastic materials.

Further, an anvil groove clamping piece with the width matched with the anvil groove is further arranged on the upper surface of the anvil abutting plate.

Furthermore, the lower surface of one end of the nail baffle, which is far away from the elastic connecting piece, is provided with a friction part.

In addition, the application also provides a stapler executing end, which comprises a nail bin accommodating cavity, a nail bin, an anvil block and the above nail bin protecting device, wherein the nail bin accommodating cavity is hinged with the anvil block oppositely; the nail bin clamping piece is positioned in the knife pushing groove, the lower surface of the nail blocking plate is abutted with the upper surface of the nail bin, and the upper surface of the anvil block abutting plate is abutted with the anvil block.

In addition, the application also provides an anastomat, which comprises the anastomat execution end.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1) the lower surface of the nail baffle plate is abutted to the upper surface of the nail bin through the elastic connecting piece, and the upper surface of the anvil block abutting plate is abutted to the anvil block, so that the sewing nails in the nail bin are prevented from falling;

2) the nail bin clamping piece is positioned to be matched with the push broach slot, so that the nail bin protecting device is more stably arranged on the executing end of the anastomat;

3) when the nail bin protection device needs to be detached, only acting force needs to be applied to one end of the anvil block abutting plate or the nail blocking plate, so that the elastic connecting piece is further deformed, and the nail bin protection device can be easily and conveniently taken out.

Drawings

FIG. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a side view of an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an embodiment of the present invention;

FIG. 4 is a schematic structural view of the stapler with the stapler at the actuating end;

FIG. 5 is a cross-sectional view of FIG. 4;

fig. 6 is a partially enlarged view of fig. 5 at a.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 6, the present embodiment provides a cartridge protection device for an intracavity stapler, specifically, the cartridge protection device is disposed at an executing end of the stapler, taking the stapler in the present embodiment as an example, the intracavity stapler, and the executing end is replaceably mounted on a main body of the stapler, specifically, the executing end 10 has a cartridge accommodating cavity, a cartridge 11 and an anvil 12, the cartridge 11 has the cartridge accommodating cavity, the cartridge accommodating cavity is hinged opposite to the anvil 12, the cartridge 11 has a push knife groove, and the anvil 12 has an anvil groove opposite to the push knife groove; the execution end 10 further comprises a connecting pipe 13, a connecting plug 14 and a nail pushing wedge-shaped block 15, wherein the connecting pipe 13 is used as a main body of the execution end 10, one end of the connecting pipe is fixedly connected with the anvil 12 and is hinged with the nail bin accommodating cavity (in other embodiments, the connecting pipe can also be fixedly connected with the nail bin accommodating cavity and is hinged with the anvil 12), the other end of the connecting pipe is connected with the connecting plug 14, and the connecting plug 14 is provided with a clamping block matched with the connecting part of the anastomat. The nail pushing wedge-shaped block 15 is used for driving the cutting knife to move forwards to cut tissues in the process of executing anastomosis, meanwhile, the nail pushing mesh is pushed to move through the tissues, and the suturing nails meet the anvil block and then are bent to be fixed on the tissues. The staple cartridge protection device provided by the embodiment is used for protecting the staples from leaking out of the staple cartridge and further preventing the staple pushing wedge block from moving forwards to perform an anastomosis process.

Specifically, the nail bin protecting device comprises a nail blocking plate 1, a nail bin clamping piece 2, an elastic connecting piece 3 and an anvil block abutting plate 4; the nail baffle plate 1 is vertical to the nail bin clamping piece 2, and one section of the nail baffle plate 1 is connected with the anvil block abutting plate 4 through the elastic connecting piece 3; when the nail bin clamping piece 2 is positioned in the knife pushing groove, the lower surface of the nail blocking plate 1 is abutted with the upper surface of the nail bin 11, and the upper surface of the anvil abutting plate 4 is abutted with the anvil 12. The lower surface of the nail blocking plate is abutted to the upper surface of the nail bin through the elastic connecting piece, and the upper surface of the anvil block abutting plate is abutted to the anvil block, so that the sewing nails in the nail bin are prevented from falling.

Further, the thickness of the cartridge clip 2 is matched with the width of the push broach slot, and the matching is specifically understood as that the thicknesses are basically the same, and only the error allowed by engineering exists. The thickness of the nail bin clamping piece 2 is slightly smaller than the width of the push broach slot, the nail bin clamping piece 2 can be made of elastic high polymer materials and is convenient to insert into the push broach slot, and the length of the nail bin clamping piece 2 is smaller than that of the push broach slot; when the nail bin clamping piece 2 is positioned in the nail pushing groove, one end of the nail bin clamping piece 2 is abutted against one end of the nail pushing groove, so that the nail bin clamping piece 2 can be prevented from sliding left and right and sliding back and forth relative to the nail bin.

Further, when one end of the nail bin clamping piece 2 abuts against one end of the nail pushing groove, the distance between the nail pushing wedge-shaped block 15 and the other end of the nail bin clamping piece 2 is smaller than the minimum distance that the nail pushing wedge-shaped block 15 pushes the nail bin 11 to discharge nails, namely when the nail bin clamping piece 2 is located at a position assembled with the execution end 10, the other end of the nail bin clamping piece 2 can prevent the nail pushing wedge-shaped block 15 from moving towards the far end to push out the suturing nails, and therefore the nail bin clamping piece 2 can further prevent the anastomat from being triggered mistakenly before use. In addition, when the nail bin clamping piece 2 is positioned in the knife pushing groove, the distance from the lower surface of the other end of the nail bin clamping piece 2 to the bottom of the knife pushing groove is larger than the height of the end part of the nail pushing wedge-shaped block 15, so that the nail bin clamping piece 2 is further prevented from being pushed out of the knife pushing groove upwards under the action of the inclined plane by the nail pushing wedge-shaped block 15.

In this embodiment, when the elastic connecting element 3 is in a natural state, i.e. not assembled, the included angle between the nail guard 1 and the anvil abutment plate 4 is larger than the maximum included angle between the nail magazine 11 and the anvil 12, so that when the nail magazine protecting device is mounted to the executing end, the angle between the nail guard 1 and the anvil abutment plate 4 needs to be compressed, and after the nail magazine protecting device is mounted in place, the elastic connecting element 3 generates an elastic reaction force, so that the nail guard 1 and the anvil abutment plate 4 are respectively in biased abutment with the surface of the nail magazine and the surface of the anvil. Specifically, the elastic connecting member 3 is made of a metal elastic material or a polymer elastic material, or is made of a combination of two materials. The polymer elastic material may be a rubber-like material.

In addition, in order to further cooperate with the anvil, the upper surface of the anvil abutting plate 4 is further provided with an anvil groove clamping piece 5 with the width matched with the anvil groove, and the anvil groove clamping piece 5 can be of a triangular structure, and the purpose of the triangular structure is mainly to cooperate with the anvil groove to prevent the anvil abutting plate 4 from sliding relative to the anvil, but the triangular structure is not required to be provided with a structure which is tightly matched with the nail bin clamping piece 2.

Further, the lower surface of one end of the nail baffle 1, which is far away from the elastic connecting piece 3, is provided with a friction part 6, specifically, the friction part 6 is an end part with a plurality of protruding stripes, and the end part protrudes out of one end of the nail bin when the execution end is installed, so that an operator can apply upward thrust to the friction part 6 when the nail baffle is disassembled and assembled, and then the nail bin clamping piece 2 is driven to be separated from the push knife groove, and the friction part 6 is pinched to pull outwards, so that the nail bin protecting device can be disassembled from the execution end 10.

Example 2:

in this embodiment, an executing end of the stapler is protected, and the executing end comprises a nail bin accommodating cavity, a nail bin 11, an anvil block 12 and a nail bin protecting device which is the same as that in embodiment 1, wherein the nail bin accommodating cavity is hinged to the anvil block 12, the nail bin 11 is provided with a push knife groove, and the anvil block 12 is provided with an anvil groove opposite to the push knife groove; the nail bin clamping piece 2 is positioned in the knife pushing groove, the lower surface of the nail blocking plate 1 is abutted against the upper surface of the nail bin 11, and the upper surface of the anvil abutting plate 4 is abutted against the anvil 12.

Example 3:

in this embodiment, a stapler is protected, which comprises the execution end and the stapler main body part mentioned in embodiment 2.

As described above, the present invention has been explained in full in accordance with the gist of the present invention, but the present invention is not limited to the above-described embodiments and implementation methods, and features of the embodiments may be combined with each other without contradiction. The practitioner of the related art can make various changes and implementations within the scope permitted by the technical idea of the present invention.

Claims

1. A cartridge protection device for an endoluminal stapler comprising an executing end (10), said executing end (10) having a cartridge receiving cavity, a cartridge (11) and an anvil (12), said cartridge (11) being provided with said cartridge receiving cavity, said cartridge receiving cavity being hinged opposite to said anvil (12), said cartridge (11) being provided with a pusher slot, said anvil (12) being provided with an anvil slot opposite to said pusher slot;

the nail bin protecting device is characterized by comprising a nail blocking plate (1), a nail bin clamping piece (2), an elastic connecting piece (3) and an anvil block abutting plate (4); the nail blocking plate (1) is perpendicular to the nail bin clamping piece (2), and one section of the nail blocking plate (1) is connected with the anvil block abutting plate (4) through the elastic connecting piece (3); when the nail bin clamping piece (2) is positioned in the knife pushing groove, the lower surface of the nail blocking plate (1) is abutted with the upper surface of the nail bin (11), and the upper surface of the anvil abutment plate (4) is abutted with the anvil (12).

2. The cartridge protection device for the intracavity stapler according to claim 1, wherein the thickness of the cartridge clip (2) matches the width of the pusher slot, and the length of the cartridge clip (2) is smaller than the length of the pusher slot; when the nail bin clamping piece (2) is positioned in the knife pushing groove, one end of the nail bin clamping piece (2) is abutted against one end of the knife pushing groove.

3. The staple cartridge protection device for the intracavity anastomat as claimed in claim 2, wherein the executing end (10) further comprises a staple pushing wedge-shaped block (15), and when one end of the staple cartridge clamping piece (2) abuts against one end of the staple pushing groove, the distance between the staple pushing wedge-shaped block (15) and the other end of the staple cartridge clamping piece (2) is smaller than the minimum distance for the staple pushing wedge-shaped block (15) to push the staple cartridge (11) out of the staple.

4. The nail box protecting device for the intracavity anastomat is characterized in that when the nail box clamping piece (2) is positioned in the knife pushing groove, the distance from the lower surface of the other end of the nail box clamping piece (2) to the bottom of the knife pushing groove is larger than the height of the end part of the nail pushing wedge-shaped block (15).

5. A cartridge protection device for an endoluminal stapler according to claim 1, characterized in that the angle between the staple stop plate (1) and the anvil abutment plate (4) is greater than the maximum angle of the cartridge (11) and the anvil (12) when the elastic connector (3) is in the natural state.

6. The cartridge protection device for an endoluminal stapler according to claim 5, wherein the elastic connecting member (3) is made of metal elastic material and/or polymer elastic material.

7. The cartridge protection device for an endoluminal stapler according to claim 1, wherein the anvil abutment plate (4) is further provided on its upper surface with an anvil slot snap (5) having a width matching the anvil slot.

8. The cartridge protection device for the intraluminal stapler according to claim 1, wherein the lower surface of one end of the staple guard (1) far away from the elastic connecting member (3) is provided with a friction part (6).

9. A stapler executing end, characterized by comprising a cartridge receiving cavity, a cartridge (11), an anvil (12) and a cartridge protection device according to claims 1-8, wherein the cartridge receiving cavity is hinged opposite to the anvil (12), the cartridge (11) is provided with a pusher slot, and the anvil (12) is provided with an anvil slot opposite to the pusher slot; the nail bin clamping piece (2) is located in the knife pushing groove, the lower surface of the nail blocking plate (1) is abutted to the upper surface of the nail bin (11), and the upper surface of the anvil abutting plate (4) is abutted to the anvil (12).

10. A stapler comprising a stapler-performing end according to claim 9.