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Seal valve component for puncture outfit

A technology for sealing valves and puncture devices, which is applied in the direction of puncture needles, puncture needles, trocars, etc., and can solve the problems of large volume and weight of puncture devices, rollover, and unfavorable doctors to take tissues, etc.

Pending Publication Date: 2018-12-11
ZHEJIANG UE MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The sealing valve is composed of multiple sheets, which is easy to leak air, hide dirt, and will roll over after the surgical instrument is pulled out
[0005] 2. The sealing valve and the air blocking valve are respectively on two parts, connected by buckles, the connection is not tight, and it is easy to leak
[0006] 3. The choke valve is installed on the casing seat, which is not conducive to the doctor to take the tissue
[0007] 4. The size and weight of the existing puncture device are too large, which is not conducive to the operation of doctors

Method used

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  • Seal valve component for puncture outfit
  • Seal valve component for puncture outfit
  • Seal valve component for puncture outfit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the puncture device includes a puncture rod 1, a sealing assembly 2 and a puncture sleeve 3, and the sealing assembly forms a sealed chamber between the puncture rod and the puncture sleeve; in the present invention, the direction in which the length of the puncture device extends is the axial direction, The direction perpendicular to the axial direction is the radial direction, the proximal end is close to the doctor's operating end, and the distal end is far away from the doctor's operating end;

[0026] Such as figure 2 As shown, the puncture rod includes a base body 11 at the proximal end, a puncture end at the distal end, and a core rod 12 between the base body and the puncture end. The base body can provide a handle for the doctor or serve as a tube during operation For passing through endoscopes; ref. image 3 The cross-sectional view of the puncture rod, the seat body has a flat top structure, the central part of the flat top struct...

Embodiment 2

[0040] Such as Figure 1~3 As shown, the puncture rod provided by the present invention is also provided with a handle 115, which is convenient for doctors to apply force and avoids blocking imaging equipment and the like. The main body of the handle is concave to form an arc curve, which is convenient for doctors to apply force, and facilitates doctor's observation and operation.

Embodiment 3

[0042] The combination of the puncture cannula and the lower cover relies on a snap-fit ​​structure:

[0043] The enlarged cylinder 31 is distributed with two symmetrical or asymmetrical elastic buckles 35 toward the outside. The elastic buckles 35 include an elastic arm 3501 and a buckling part 3502. The buckling part has a protruding part 3503, and serves as In a preferred implementation manner, the elastic arm 3501 has an anti-friction part, which is convenient for the operator to press the elastic arm and avoid slipping.

[0044] A slot 2208 is provided on the outer wall of the cylindrical wall of the lower cover. The slot 2208 extends axially downward to the bottom of the cylindrical wall, and has an abutment surface 2211 axially upward. A blocking portion is provided on the inner side of the cylindrical wall to press the elastic arm 3501, the elastic arm 3501 of the elastic buckle is embedded in the socket 2208, and the clamping part 3502 is limitedly matched with the bl...

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PUM

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Abstract

The invention provides a seal valve component for a puncture outfit. The seal valve component is used with a mandrel of a puncture rod and comprises a seal valve, the seal valve is a hollow part withupper and lower openings, and the size of the lower opening of the hollow part is smaller than the radial size of the mandrel of the puncture rod. An inner liner with an opening A is arranged on the inner wall of the seal valve, the opening A does not exceed the lower opening of the hollow part, and the inner liner is in limiting fit with the seal valve.

Description

technical field [0001] The invention belongs to the field of medical instruments, and in particular relates to a sealing valve assembly of a trocar. Background technique [0002] In minimally invasive human medical surgery, once a lesion is found in the human body, surgery or resection is required. During the operation, the first thing to use is a puncture device, which is a device that pierces the abdominal wall and provides access to the body cavity for other surgical instruments. A surgical instrument belongs to a minimally invasive surgical instrument. The trocar usually includes a cannula seat as an access channel for other surgical instruments, a conversion cap arranged on the cannula seat, and a puncture rod penetrating through the cannula seat and the conversion cap. First, in order to penetrate the skin, cut the skin epidermis with a scalpel, then use the puncture rod to penetrate the skin and enter the body cavity together with the cannula seat and conversion cap,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34
CPCA61B17/3417A61B2017/3419
Inventor 张威浩邓贵龙李宏博王卫东邱志欣夏大卫李芳柄贾东兴王卫南王桃红李卫平
Owner ZHEJIANG UE MEDICAL