CN211560214U

CN211560214U - Sealing structure of disposable circular digestive tract anastomat

Info

Publication number: CN211560214U
Application number: CN201922425154.6U
Authority: CN
Inventors: 杨虢文
Original assignee: Suzhou Langtesi Medicial Technology Co ltd
Current assignee: Suzhou Langtesi Medicial Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-25
Anticipated expiration: 2029-12-30

Abstract

The sealing structure of the disposable circular digestive tract anastomat comprises an elbow, a connecting piece and a push rod, wherein the connecting piece and the push rod are arranged in the elbow, and the disposable circular digestive tract anastomat is characterized in that: a guard plate is additionally arranged at the sealing section of the bent pipe, the guard plate and the push rod are spliced to form a spliced body with the cross section matched with the shape of the inner wall of the bent pipe, and a special channel for the connecting sheet to pass through is arranged in the center of the spliced body along the direction of the pipe body of the bent pipe; an outer sealing groove is formed in the outer edge of the splicing body, and an outer sealing ring is arranged in the groove, so that a gap between the splicing body and the inner wall of the bent pipe is sealed; an inner sealing groove is arranged on the inner edge of the special channel of the split body, and an inner sealing ring is arranged in the groove, so that the gap between the connecting sheet and the inner wall of the special channel is sealed. The scheme can be matched with a laparoscope and can effectively prevent the leakage of gas in the abdominal cavity when clinically applied under the inflation condition, so that the anastomat can be safely and effectively applied to laparoscopic surgery.

Description

Sealing structure of disposable circular digestive tract anastomat

Technical Field

The utility model relates to the field of medical surgical instruments, in particular to a sealing structure of a disposable circular digestive tract anastomat.

Background

In modern surgical medicine, interventional surgical instruments are used extensively in order to achieve minimally invasive surgery. One of the invasive surgical instruments is a surgical instrument used in medicine to replace manual cutting and suturing, and the main working principle is to use a cutter and a staple to perform separation and anastomosis on human tissues, similar to the cutter and a stapler.

The disposable circular digestive tract anastomat is a disposable minimally invasive surgical instrument for cutting and suturing the digestive tract. Generally, when a circular digestive tract anastomat is used for carrying out minimally invasive surgery on a patient, a laparoscope is needed to be used for cooperation, so that a laparoscopic surgeon operates surgical instruments outside an abdominal cavity under the monitoring and guiding of a high-definition display screen to carry out operations such as probing, electrocoagulation, hemostasis, tissue separation and incision, suturing and the like on diseased tissues. In order to facilitate the observation of the surrounding diseased tissue by the operating physician, it is often necessary to fill the abdominal cavity with CO at a certain pressure₂The gas makes the abdominal cavity swell to be convenient for observation. However, during the above-mentioned procedure, the digestive tract may be temporarily connected to the abdominal cavity, especially when the diseased tissue is excised, and in this case, if the circular digestive tract stapler itself does not have the sealing property, the connection with the outside may cause CO in the abdominal cavity₂Gas leaks from the tube of the circular digestive tract stapler. In severe cases, the observation and understanding of the surrounding condition of the diseased tissue by the operating physician can be affected.

In view of this, the subject of the present invention is how to design a circular digestive tract anastomat with sealing effect.

Disclosure of Invention

The utility model provides a seal structure of a disposable circular digestive tract anastomat, which aims to solve the problem that the inner pipeline of the existing circular digestive tract anastomat does not have the tightness or the poor sealing performance.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the sealing structure of the disposable circular digestive tract anastomat comprises an elbow used for extending into a digestive tract lesion part, a connecting piece used for pulling the head to be anastomotic and a push rod used for pushing a suture nail to be sutured, wherein the elbow is of a pipe body structure, the connecting piece and the push rod are arranged in the elbow, and the disposable circular digestive tract anastomat is innovative in that:

the straight pipe in the elbow is provided with a sealing section, the sealing section is provided with a guard plate, the guard plate and a push rod at the sealing section are spliced to form a spliced body, the outer edge of the spliced body is matched with the shape of the inner wall of the elbow on the cross section of the elbow, the center of the spliced body is provided with a special channel along the direction of the elbow body, and the connecting piece penetrates through the special channel.

The outer edge of the splicing body is provided with an outer sealing groove along the circumferential direction, the outer sealing groove is provided with an outer sealing ring, and the outer sealing ring seals a gap between the splicing body and the inner wall of the elbow pipe to form outer sealing.

An inner sealing groove is formed in the inner edge of the special channel of the splicing body in the circumferential direction, an inner sealing ring is arranged on the inner sealing groove, and the inner sealing ring seals a gap between the connecting sheet and the inner wall of the special channel to form inner sealing.

The relevant content in the above technical solution is explained as follows:

1. in the scheme, the outer seal is formed by a seal, and the seal is formed by matching an outer seal groove and an outer seal ring; the inner seal is formed by two seals, and the two seals are formed by matching two inner seal grooves and two inner seal rings; one of the two inner seals is arranged at the front position of the outer seal, and the other inner seal is arranged at the rear position of the outer seal.

2. In the scheme, the inner edge of the outer sealing ring is matched with the outer sealing groove, and the outer edge is provided with the outer sealing lip with the Y-shaped cross section.

3. In the scheme, the outer edge of the inner sealing ring is matched with the inner sealing ring, and the inner edge is provided with an inner sealing lip hole matched with the cross section of the connecting piece in shape.

The technical conception and the effect of the utility model are as follows: in order to solve the problem that the inner pipeline of the existing circular digestive tract anastomat does not have the tightness or is poor in sealing, the utility model adopts the following technical measures: firstly, a guard plate is additionally arranged at the sealing section of the elbow, the guard plate and a push rod are spliced to form a spliced body with the cross section matched with the shape of the inner wall of the elbow, and a special channel for a connecting sheet to pass through is arranged in the center of the spliced body along the direction of the elbow body; secondly, an outer sealing groove is formed in the outer edge of the splicing body, and an outer sealing ring is arranged in the groove, so that a gap between the splicing body and the inner wall of the bent pipe is sealed; thirdly, an inner sealing groove is arranged on the inner edge of the special channel of the split body, and an inner sealing ring is arranged in the groove, so that the gap between the connecting sheet and the inner wall of the special channel is sealed.

In a word, the utility model discloses an increase backplate, external seal circle and inner seal circle and carried out effectual sealed with return bend inner member and passageway. The sample utility model discloses circular alimentary canal anastomat can cooperate the peritoneoscope and under the condition of inflating, can effectively prevent the leakage of the intracavity gas of abdomen when clinically using, makes the anastomat can be safe effectual to use in laparoscopic surgery.

Drawings

FIG. 1 is a cross-sectional view of a disposable circular digestive tract anastomat according to the embodiment of the utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is a perspective view of an outer seal ring of the embodiment of the present invention;

FIG. 4 is a perspective view of an inner seal of an embodiment of the present invention;

fig. 5 is an exploded perspective view of the sealing structure components of the embodiment of the present invention.

In the above drawings: 1. bending the pipe; 2. a push rod; 3. connecting sheets; 4. the outer sealing groove; 5. a guard plate; 6. an outer sealing ring; 7. an inner seal ring; 8. an inner sealing groove; 9. stitching; 10. a cutter; 11. mushroom heads; 12. a screw; 13. a nut; 14. a wrench; 15. a tail cover; 16. an outer sealing lip; 17. the lip hole is sealed internally.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example (b): sealing structure of disposable circular digestive tract anastomat

As shown in fig. 1-5, the sealing structure comprises an elbow 1 extending into a diseased part of the digestive tract, a connecting sheet 3 for pulling the head to be anastomosed and a push rod 2 for pushing the staples to be sutured, wherein the elbow 1 is of a pipe body structure, and the connecting sheet 3 and the push rod 2 are arranged in the elbow 1 (see fig. 1 and 2).

The straight pipe in the elbow 1 is provided with a sealing section, the sealing section is provided with a guard plate 5 (see figure 5), the guard plate 5 and a push rod 2 at the sealing section are spliced to form a spliced body, the outer edge of the spliced body is matched with the shape of the inner wall of the elbow 1 on the cross section of the elbow 1, the center of the spliced body is provided with a special channel along the direction of the pipe body of the elbow 1, and the connecting piece 3 penetrates through the special channel.

An outer sealing groove 4 (shown in figures 2 and 5) is formed in the outer edge of the splicing body in the circumferential direction, an outer sealing ring 6 (shown in figures 2, 3 and 5) is arranged on the outer sealing groove 4, and the outer sealing ring 6 seals a gap between the splicing body and the inner wall of the elbow 1 to form outer sealing. The inner edge of the outer sealing ring 6 is matched with the outer sealing groove 4, and the outer edge is provided with an outer sealing lip 16 (see figure 3) with a Y-shaped cross section.

An inner sealing groove 8 (shown in figures 2 and 5) is formed in the inner edge of the special channel for the splicing body along the circumferential direction, an inner sealing ring 7 (shown in figures 2, 4 and 5) is arranged on the inner sealing groove 8, and the inner sealing ring 7 seals a gap between the connecting piece 3 and the inner wall of the special channel to form inner sealing. The outer edge of the inner sealing ring 7 is matched with the inner sealing ring 7, and the inner edge is provided with an inner sealing lip hole 17 (see figure 4) matched with the cross section shape of the connecting piece 3.

In the present embodiment, the outer seal is formed by a seal formed by an outer seal groove 4 and an outer seal ring 6. The inner seal is formed by two seals, which are formed by two inner seal grooves 8 and two inner seal rings 7. One of the two inner seals is disposed at a position forward of the outer seal and the other is disposed at a position rearward of the outer seal (see fig. 2).

Other embodiments and structural variations of the present invention are described below:

1. in the above embodiments, the outer seal uses one seal, and the inner seal uses two seals. However, the present invention is not limited thereto. The outer seal can adopt two seals, and the inner seal also adopts two seals. The outer seal can adopt two seals, and the inner seal also adopts one seal. In any case, the number of tracks used for the outer seal or the inner seal is not limited, and is preferably determined according to actual needs, which is easily understood and accepted by those skilled in the art.

2. In the above embodiment, one of the two inner seals is disposed at a position forward of the outer seal, and the other is disposed at a position rearward of the outer seal. However, the present invention is not limited to this, and the two inner seals may be disposed in front of or behind the outer seal. That is, the cross arrangement of the inner seal and the outer seal is not limited, as would be readily understood and accepted by those skilled in the art.

3. In the above embodiments, no very specific and strict limitations are given to the structural form of the protector plate 5. In the utility model, the guard plate 5 has two functions, the first function is to be spliced with the push rod into a shape matched with the inner wall of the elbow; secondly, a special channel for the connecting sheet to pass through is constructed between the guard plate and the push rod or on the guard plate. This is a substantial requirement of the present invention. The concrete form can be unlimited, therefore can change according to the change of the cross-sectional shape of push rod and connecting piece in practical application, has certain flexibility. And the push rod and the connecting sheet are inherent functional components of the existing circular digestive tract anastomat.

4. In the above embodiments, the sealing structure design is mainly made for the push rod and the connecting piece in the elbow, if other functional components are added, the sealing problem in the elbow can be solved by adopting the same concept as the push rod and/or the connecting piece. This should also be understood to fall within the scope of the present invention.

5. In the above embodiment, the inner edge of the outer sealing ring 6 matches with the outer sealing groove 4, and the outer edge is provided with the outer sealing lip 16 (see fig. 3) having a cross section in a "Y" shape. However, the present invention is not limited to this, and the specific structural form of the outer sealing ring can be varied, for example, an "O" shaped sealing ring can be adopted. As would be readily understood and accepted by those skilled in the art.

6. In the above embodiment, the outer edge of the inner sealing ring 7 matches with the inner sealing ring 7, and the inner edge is provided with an inner sealing lip hole 17 (see fig. 4) matching with the cross-sectional shape of the connecting piece 3. The present invention is not limited thereto, and the specific structure of the outer seal ring can be variously changed, which is easily understood and accepted by those skilled in the art.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The seal structure of disposable circular alimentary canal anastomat, including being used for stretching into return bend (1) of alimentary canal pathological change position, be used for pulling the anastomotic connection piece of head (3) and be used for promoting the sutural push rod of staple (2), return bend (1) is the body structure, and connection piece (3) and push rod (2) are laid in return bend (1), its characterized in that:

a sealing section is arranged on a straight pipe in the bent pipe (1), a protective plate (5) is arranged at the sealing section, the protective plate (5) and a push rod (2) at the sealing section are spliced to form a spliced body, the outer edge of the spliced body is matched with the shape of the inner wall of the bent pipe (1) on the cross section of the bent pipe (1), a special channel is arranged in the center of the spliced body along the direction of the pipe body of the bent pipe (1), and the connecting sheet (3) penetrates through the special channel;

an outer sealing groove (4) is formed in the outer edge of the splicing body in the circumferential direction, an outer sealing ring (6) is arranged on the outer sealing groove (4), and the outer sealing ring (6) seals a gap between the splicing body and the inner wall of the bent pipe (1) to form outer sealing;

an inner sealing groove (8) is formed in the inner edge of the special channel of the splicing body in the circumferential direction, an inner sealing ring (7) is arranged on the inner sealing groove (8), and the inner sealing ring (7) seals a gap between the connecting sheet (3) and the inner wall of the special channel to form inner sealing.

2. The seal structure of claim 1, wherein: the outer seal is formed by a seal, and the seal is formed by matching an outer seal groove (4) and an outer seal ring (6); the inner seal is formed by two seals, and the two seals are formed by matching two inner seal grooves (8) and two inner seal rings (7); one of the two inner seals is arranged at the front position of the outer seal, and the other inner seal is arranged at the rear position of the outer seal.

3. The seal structure of claim 1, wherein: the inner edge of the outer sealing ring (6) is matched with the outer sealing groove (4), and the outer edge is provided with an outer sealing lip (16) with a Y-shaped cross section.

4. The seal structure of claim 1, wherein: the outer edge of the inner sealing ring (7) is matched with the inner sealing ring (7), and the inner edge is provided with an inner sealing lip hole (17) matched with the cross section of the connecting piece (3).