CN212996670U

CN212996670U - Sealing element for puncture outfit

Info

Publication number: CN212996670U
Application number: CN202020523114.5U
Authority: CN
Inventors: 王苏; 陈永霞; 耿宝功
Original assignee: Tianjin Uwell Medical Device Manufacturing Co ltd
Current assignee: Tianjin Uwell Medical Device Manufacturing Co ltd
Priority date: 2020-01-17
Filing date: 2020-04-10
Publication date: 2021-04-20
Anticipated expiration: 2030-04-10

Abstract

The utility model provides a sealing member for puncture ware, including sealing member main part and the annular flange wall of design connection effect around, be equipped with the seal port of a "one" style of calligraphy in the middle of the sealing member top, the seal port of "one" style of calligraphy can be opened or closed, two lateral walls of sealing member are the indent design, just be provided with the muscle position of a plurality of indents on the lateral wall, be provided with the muscle position of a plurality of evaginations on the inside wall that corresponds. The utility model discloses the actual effect does: when a minimally invasive surgical instrument is introduced into the puncture outfit, the sealing piece with the V-shaped design can enable the instrument to pass through smoothly, and the sealing opening can be opened easily. When the puncture outfit is pulled out from the minimally invasive surgical instrument, the sealing port can be rapidly closed, so that the air pressure in the abdominal cavity of the patient is maintained, and the smooth performance of the minimally invasive surgery is ensured.

Description

Sealing element for puncture outfit

Technical Field

The utility model relates to the technical field of medical equipment, specifically a sealing member structure for puncture ware.

Background

The puncture outfit belongs to a minimally invasive surgical instrument, is inserted through the abdomen of a patient in the using process and is kept on the abdomen of the patient, plays a role in connecting the outside with the abdominal cavity of the patient and provides a channel for the entrance of other minimally invasive surgical instruments.

The puncture device generally comprises two parts, namely: a sleeve assembly for providing access to other surgical instruments, and a puncture rod assembly for puncturing the abdomen of a patient. In clinical use, firstly, a small opening is cut on the abdominal skin of a patient by using a scalpel, then the puncture device is used for puncture, after the puncture rod penetrates through the abdominal tissue of the patient and enters the abdominal cavity, the puncture rod is pulled out, and the cannula assembly is kept on the abdominal tissue of the patient, so that a channel is provided for other minimally invasive operations to enter the abdominal cavity.

The abdominal cavity of a patient is filled with a specific gas during an operation and is maintained at a certain gas pressure. Therefore, the puncture device is required not to leak air under such air pressure. At present, a duckbill-shaped seal is generally adopted in a puncture outfit sleeve. When the sleeve of the puncture outfit penetrates the abdomen of the patient, the duckbill-shaped seal is kept in a closed state under the action of the air pressure in the abdominal cavity. When a surgical instrument enters the puncture outfit sleeve, the duckbill-shaped seal is opened, so that the operation of the surgical instrument is realized. In some more complicated operations, the surgical instrument needs to be continuously inserted into and pulled out of the puncture outfit sleeve, and the duckbill-shaped sealing element is easily extruded by the surgical instrument to deform in the process, so that the air tightness is damaged or the air leakage condition cannot be generated, and the operation risk is increased.

Disclosure of Invention

To the defect of above-mentioned prior art, the utility model provides a sealing member of puncture ware, it proves through the experiment, after the reciprocal insertion of surgical instruments and extract puncture ware thimble assembly, can both guarantee the sheathed tube leakproofness of puncture ware, guarantee to perform the operation smoothly.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides a sealing member for puncture ware, includes sealing member main part and design ring flange wall of the effect of connecting around, be equipped with the seal port of a "one" style of calligraphy in the middle of the sealing member top, the seal port of "one" style of calligraphy can be opened or closed, two lateral walls of sealing member are the indent design, just be provided with the muscle position of a plurality of indents on the lateral wall, be provided with the muscle position of a plurality of evaginations on the corresponding inside wall.

The seal is divided into two symmetrical parts by the I-shaped seal port. The outer side surfaces of the two symmetrical parts are designed to be concave respectively, the outer side surface area of the sealing element is increased, and the sealing element can receive larger force to guarantee sealing after being acted by air pressure in the abdominal cavity.

Furthermore, the rib position direction of the outer side wall and the inner side wall is perpendicular to the direction of the linear sealing opening.

Further, the outer side wall of the sealing element is designed to be concave.

Furthermore, the outer side wall and the inner side wall are provided with a plurality of ribs.

Furthermore, the height of the middle outer convex rib position of the inner side wall is larger than the height of other outer convex rib positions.

The outer side surfaces of the two symmetrical parts are provided with concave ribs, the concave ribs increase the surface area of the outer side surface, and the outer side surface can receive larger force to guarantee sealing after receiving the action of air pressure in the abdominal cavity.

The inner side surfaces of the two symmetrical parts are provided with the convex ribs, and after the surgical instrument is pulled out of the sealing element, the restoring force of the two symmetrical parts of the sealing element is increased by the convex rib structures, so that the two symmetrical parts of the sealed element are closed rapidly, and the sealing effect is achieved.

The utility model discloses an effect mainly embodies: when no surgical instrument passes through the sealing element, the outside surfaces of two symmetrical parts of the sealing element are under the action of the air pressure in the abdominal cavity, the closing state can be effectively ensured, the contact area of the air pressure in the abdominal cavity is increased by the concave design and the concave rib design of the outside of the two parts, and the sealing element is ensured to be closed more easily in the state. When surgical instruments pass through the sealing piece, the I-shaped sealing opening of the sealing piece can be smoothly opened, and the convex ribs on the inner sides of the two parts are in contact with the surgical instruments, so that the contact area between the surgical instruments and the sealing piece is effectively reduced, the frictional resistance is reduced, and the surgical instruments can be more conveniently operated.

Drawings

Fig. 1 is a perspective view of the sealing member of the present invention.

Fig. 2 is a front view of the sealing member of the present invention, and the linear sealing opening is closed at this time.

Fig. 3 is a front view of the sealing member of the present invention, and the linear sealing opening is opened at this time.

Fig. 4 is an assembly view of the puncture instrument of the present invention.

Fig. 5 is an exploded view of the puncture instrument of the present invention.

Detailed Description

As shown in fig. 1-3, the utility model provides a sealing element of a puncture outfit for minimally invasive surgery, which comprises a sealing element main body 1 and a connecting annular flange wall 2 arranged around the sealing element main body. The middle of the top of the sealing element is provided with a linear sealing opening 3 which can be opened or closed. The outer side wall of the sealing element is provided with an inwards concave rib position 5, and the corresponding inner side wall is provided with an outwards convex rib position 6.

As shown in fig. 1-3, the sealing body is divided into two symmetrical parts by the sealing port 3, the outer side surface 4 of each part is designed to be concave, the corresponding inner side surface is designed to be convex, the surface area of the outer side surface can be increased by the design, and each outer side surface is provided with a rib position which is concave, so that the surface area of the outer side surface is increased, and the sealing body can be ensured to be in a closed state under the action of the air pressure in the abdominal cavity. And the design of rib position has also increased the closed bounce of sealing body, and the design of inside and outside rib position can be a plurality ofly.

As shown in fig. 3, when the minimally invasive surgical instrument 8 is introduced into the puncture outfit, the sealing element with the approximate V-shaped design can enable the instrument to smoothly pass through, and the sealing opening can be easily opened. And the surgical instrument is actually contacted with the inner convex rib 7, so that the contact area of the surgical instrument and the sealing element is reduced, the friction force is reduced, and the surgical operation is more comfortable. The medial rib 7 is relatively higher than the other ribs 6, which ensures that the surgical instrument is always in contact with the rib 7 during surgery. When the sealing body is pulled out of the minimally invasive surgical instrument, the two side parts of the sealing opening can be closed rapidly under the action of air pressure in the abdominal cavity, and meanwhile, the rib position is designed to have certain restoring force in the sealing body closing process, so that the sealing body is closed more favorably.

And finally, the sealing port can be quickly closed, so that the air pressure in the abdominal cavity of the patient is maintained, and the smooth performance of the minimally invasive surgery is ensured.

The utility model discloses there is multiple embodiment, all adopt the same kind transform or equivalent transform and the technical scheme who forms, all belong to within the scope of protection of the utility model.

Claims

1. A seal for a puncture instrument comprising a seal body and a circumferentially disposed, coupling annular flange wall, characterized in that: be equipped with the sealing port of "a" style of calligraphy in the middle of the sealing member top, the sealing port of "a" style of calligraphy can be opened or closed, two lateral walls of sealing member are the indent design, just be provided with the muscle position of a plurality of indents on the lateral wall, be provided with the muscle position of a plurality of evaginations on the corresponding inside wall.

2. The seal for a puncture instrument according to claim 1, wherein: the rib position direction of the outer side wall and the inner side wall is vertical to the direction of the linear sealing opening.

3. The seal for a puncture instrument according to claim 1, wherein: the outer side wall of the sealing element is designed to be concave.

4. The seal for a puncture instrument according to claim 2, wherein: the outer side wall and the inner side wall ribs are multiple.

5. The seal for a puncture instrument according to claim 2, wherein: the height of the convex rib position in the middle of the inner side wall is larger than the height of other convex rib positions.