CN215739331U

CN215739331U - Sealing gasket and sealing element of laparoscope puncture outfit

Info

Publication number: CN215739331U
Application number: CN202121598715.3U
Authority: CN
Inventors: 耿宝功; 高燕; 张立波
Original assignee: Tianjin Uwell Medical Device Manufacturing Co ltd
Current assignee: Tianjin Uwell Medical Device Manufacturing Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-02-08
Anticipated expiration: 2031-07-14

Abstract

The utility model relates to a sealing gasket of a laparoscopic puncture outfit, which comprises a thin wall (10) and a lug (20), wherein the outer edge of the thin wall (10) is connected to the inner side of the lug (20), and a first through hole (11) is formed in the thin wall (10) in a region deviated from the center of the thin wall. After two or more than two sealing gaskets are superposed, the first through holes (11) of the two adjacent sealing gaskets are staggered to form a sealing element (30). The utility model has the advantages that: 1. the sealing effect between the upper sealing gasket and the lower sealing gasket is good; 2. the sealing gasket is convenient to install; 3. the operation hand feeling of the doctor is good in the using process.

Description

Sealing gasket and sealing element of laparoscope puncture outfit

Technical Field

The utility model is applied to the technical field of medical instruments, and particularly relates to a sealing gasket and a sealing element of a laparoscopic puncture outfit for minimally invasive medical operations.

Background

The laparoscopic puncture outfit is used in minimally invasive medical operations, and pneumoperitoneum needs to be established in the abdominal cavity of a human body. The pneumoperitoneum is an important condition of the laparoscopic surgery, and under the condition of sufficient pneumoperitoneum, the pneumoperitoneum can prop open the abdominal wall to increase the distance between the abdominal wall and the visceral organs and also prop open the distance between the visceral organs, so that a relatively wide visual field and an easily operated operation space are provided for a surgeon performing the surgery, and the laparoscopic puncture outfit consists of a puncture core assembly, a sealing assembly and a puncture sleeve assembly. In the prior art, a sealing gasket of a sealing assembly is formed by alternately stacking a single sealing gasket or four same thin rubber sealing gaskets, and the sealing assembly has the following defects: 1) the diameter of the central opening of the single-piece seal is of a fixed size, and the insertion and extraction forces caused by different diameters of medical devices passing through the seal are different. When inserting large diameter medical instruments, the insertion and extraction forces are excessive. When inserting a small diameter medical instrument, the insertion and extraction force is too small. This affects the operation of the surgeon. 2) The sealing element is formed by overlapping four same sealing gaskets in a staggered mode, the structure cannot completely seal the overlapped part, and a part of gas leakage happens. Moreover, the structure is difficult to produce and assemble, and the automatic production is difficult to realize.

Because the sealing assembly has the defects, the problems of unstable operation, unreliable sealing and unstable pneumoperitoneum pressure of an operation passage exist in the operation process, the structural design is complex, and the ideal operation effect cannot be achieved.

The present invention has been made in view of the above circumstances.

Disclosure of Invention

In order to overcome the problems in the prior art, the utility model provides a sealing gasket and a sealing element of a laparoscopic puncture outfit, wherein two or more than two same thin rubber sealing elements are mutually overlapped at an angle, and the thin rubber sealing gaskets are mutually overlapped in use, so that the sealing effect is good; and the installation is convenient, and the manufacturing cost is low.

In order to achieve the purpose, the utility model adopts the technical scheme that: a sealing gasket of a laparoscopic puncture outfit comprises a thin wall and a lug, wherein the outer edge of the thin wall is connected to the inner side of the lug, and a first through hole is formed in the area of the thin wall deviated from the center of the thin wall.

Further, the first through hole extends from near the center of the thin wall to near the outer edge.

Further, the first through hole is a circular hole, a waist-shaped hole, a water drop-shaped hole, an elliptical hole, an arc-shaped hole or a combination shape of two or more of the hole types.

Further, the thin wall is conical with a low center and high periphery.

Further, the lug is arranged on the top outer side of the thin wall.

Optionally, a second through hole is arranged on the lug, and is used for fixing the sealing gasket on the puncture outfit.

Further, the second through holes on the lugs are multiple.

Optionally, the lug is annular.

Furthermore, the thin wall is made of rubber or nontoxic thermoplastic elastomer.

The utility model also provides a sealing element, which is formed by overlapping two or more sealing gaskets, and staggering the first through holes of the two adjacent sealing gaskets.

The utility model has the advantages that: 1. the sealing effect between the upper sealing gasket and the lower sealing gasket is good; 2. the sealing gasket is convenient to install; 3. the operation hand feeling of the doctor is good in the using process.

Drawings

Fig. 1 is a schematic structural view of a gasket of a laparoscopic puncture instrument according to the present invention.

Fig. 2 is an exploded view of a sealing member of the laparoscopic puncture instrument shown in fig. 1.

Wherein 10-thin wall, 11-first through hole, 20-lug, 21-second through hole, 30-seal.

Detailed Description

The sealing gasket and the sealing member of the laparoscopic puncture instrument for minimally invasive medical surgery according to the present invention will be further described with reference to fig. 1 to 2. The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the utility model, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

As shown in FIG. 1, the sealing gasket of the laparoscopic puncture instrument of the present invention comprises a thin wall 10 and a lug 20, wherein the thin wall 10 has a circular shape, the outer edge thereof is connected to the inner side of the lug 20, and the thin wall 10 is provided with a first through hole 11 in a region deviated from the center thereof. The first through hole 11 is used for penetrating through a puncture core of the puncture outfit so as to facilitate the puncture core to enter the abdominal cavity of a patient.

The first through holes 11 need to be arranged to avoid the central part of the thin wall 10, and only then, when more than two gaskets are stacked together, the first through holes 11 of the two gaskets do not overlap, so that a sealed state can be formed.

The shapes of the first through holes 11 can be various, and the key place is that the inner hole walls of the first through holes 11 are in smooth transition, so that the phenomenon that the inner hole walls and the puncture core are contacted to generate gaps due to sudden shape change is avoided, and the situation that sealing is not tight is caused. The first through holes 11 may be circular holes, kidney-shaped holes, water drop-shaped holes, elliptical holes, arc-shaped holes, or a combination of two or more of these holes.

In a preferred embodiment, the first through hole 11 extends from near the center of the thin wall 10 to near the outer edge.

The gasket may have a flat planar shape or a conical shape which is slightly tapered, and preferably, the thin wall 10 has a conical shape with a low center and high periphery, so that the two adjacent gaskets can be bonded and sealed better.

When the thin wall 10 assumes a thin planar shape, the lugs 20 are disposed outside the thin wall 10; when the thin wall 10 presents a thin cone shape, the lugs 20 are arranged outside the top of the thin wall 10. The purpose of the lugs 20 is to facilitate the sealing of the seal on the puncture instrument.

The lug 20 is provided with a second through hole 21 for the insertion of a fixing screw, rivet or pin for fixing the seal to the puncture device. The second through holes 21 on the lugs 20 are plural, for example, 6, 8, 10, 12, 16 or even more.

Optionally, the lug is annular.

As shown in fig. 2, the sealing member 30 of the laparoscopic puncture outfit provided by the present invention comprises 3 sealing gaskets, the three sealing gaskets are stacked one on another and keep the first through hole 11 stacked at an angle of 120 degrees, so as to form a sealing member 30 with a sealing function, and the sealing member 30 can keep the puncture outfit airtight during the minimally invasive laparoscopic medical surgery and ensure good operation hand feeling of a doctor, thereby enabling the minimally invasive surgery to be smoothly performed.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A sealing gasket of a laparoscopic puncture outfit is characterized by comprising a thin wall (10) and a lug (20), wherein the outer edge of the thin wall (10) is connected to the inner side of the lug (20), and the thin wall (10) is provided with a first through hole (11) in a region deviated from the center.

2. The gasket of the laparoscopic puncture instrument according to claim 1, wherein the first through hole (11) extends from near the center of the thin wall (10) to near the outer edge.

3. The gasket of the laparoscopic puncture instrument according to claim 2, wherein the first through hole (11) is a circular hole, a kidney-shaped hole, a water drop-shaped hole, an elliptical hole, an arc-shaped hole, or a combination of two or more of these holes.

4. The gasket of the laparoscopic puncture instrument according to claim 1, wherein said thin wall (10) has a conical shape with a low center and a high circumference.

5. The gasket of the laparoscopic puncture instrument according to claim 4, wherein said lug (20) is disposed outside the top of the thin wall (10).

6. A seal for a laparoscopic puncture instrument according to any one of claims 1 to 5, wherein said lug (20) is provided with a second through hole (21) for fixing the seal to the puncture instrument.

7. The gasket of the laparoscopic puncture instrument according to claim 6, wherein the second through hole (21) of the lug (20) is plural.

8. The seal of the laparoscopic puncture instrument according to any one of claims 1 to 5, wherein said lug (20) has an annular shape.

9. The laparoscopic puncture instrument seal according to any one of claims 1 to 5, wherein the material of said thin wall (10) is rubber or a non-toxic thermoplastic elastomer.

10. A sealing member for a laparoscopic puncture outfit, comprising the gasket of any one of claims 1 to 9, wherein the sealing member (30) is assembled by stacking two or more gaskets and staggering the first through holes (11) of the two adjacent gaskets.