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Improved puncture outfit

A trocar and an improved technology, applied in the field of medical devices, can solve the problems that the connection between the conversion cap and the sleeve seat is not tight enough, the conversion cap and the sleeve seat are easy to swing relative to each other, and both sides cannot be locked or disengaged at the same time. Easy to swing, open or close, easy to dislocate effect

Active Publication Date: 2014-07-02
HANGZHOU KANGJI MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above solution solves the problem of inconvenient disassembly and assembly of the existing trocar conversion cap and sleeve seat to a certain extent, but the solution still exists: inconvenient use, the two sides cannot be locked or disengaged at the same time, and the conversion cap and sleeve seat are easy to face each other Swing, resulting in the connection between the conversion cap and the sleeve seat is not tight enough, resulting in air leakage, the visual instrument passes through the sealing cap, the camera is easily contaminated, and the opening or closing of the valve is inconvenient.

Method used

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Examples

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Embodiment 1

[0028] Such as Figure 1-3 As shown, the improved puncture device includes a puncture cannula seat 1, the end of the puncture cannula seat 1 is provided with a puncture cannula 4, and a sealing cap 5 is arranged inside the puncture cannula seat 1. The puncture sleeve base 1 is provided with a conversion cap 2 through a connecting mechanism, and the conversion cap 2 and the puncture sleeve base 1 are pierced with a puncture rod 6 whose outer end extends to the outside of the front end of the puncture sleeve 4 . The outer side of the puncture cannula seat 1 is provided with a valve 7 through the installation structure. It is characterized in that the connection mechanism includes a side groove 3 arranged on the upper side of the puncture cannula seat 1. The side groove 3 is equipped with a valve that can move horizontally along the side groove 3. The pressing body 31, the inner end of the pressing body 31 is provided with at least two horizontal locking inserts 32, the conversio...

Embodiment 2

[0040] Such as Figure 7 As shown, the structure and principle of this embodiment are basically the same as those of Embodiment 1. The difference lies in that the number of opening and closing seams 54 in this embodiment is two and arranged in a cross shape on the tapered cylinder 53. on the top of the cone.

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PUM

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Abstract

The invention relates to an improved puncture outfit. The improved puncture outfit solves the problem that an existing puncture outfit is not reasonable in design. The improved puncture outfit comprises a puncture sleeve base, a puncture sleeve, a sealing cap and a conversion cap, wherein the outside of the puncture sleeve base is provided with a valve through an installation structure, the puncture sleeve base comprises a side groove formed in the side face of the upper portion of the puncture sleeve base, a pressing body capable of horizontally moving along the side groove is arranged in the side groove, the inner end of the pressing body is provided with at least two locking insertion bodies which are arranged horizontally, the conversion cap is provided with at least two positioning feet, the locking insertion bodies and the positioning feet are arranged in a one-to-one correspondence mode, a clamping structure is arranged between the locking insertion bodies and the positioning feet, and when the pressing body drives the locking insertion bodies to move inwards in the axial direction of the side groove, the positioning feet can be separated from the locking insertion bodies. The improved puncture outfit has the advantages that two edges can be simultaneously fixed or disengaged, air is not prone to leaking between the conversion cap and the sleeve base, stability is high, stability of the valve is high, the valve can be opened or closed conveniently, sealing performance of the sealing cap is high, and visual instruments are not prone to being polluted.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, in particular to an improved 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 sleeve base as an access channel for other surgical instruments, a conversion cap arranged on the sleeve base, and a puncture rod passing through the sleeve base and the conversion cap. First of all, in order to penetrate the skin, cut the epidermis of the skin with a scalpel, then use the puncture rod to penetrate the skin and enter the body cavity together with the sleeve seat and the conversion cap, and then ...

Claims

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Application Information

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IPC IPC(8): A61B17/34A61B17/00
CPCA61B17/3421A61B2017/3445
Inventor 杜燕夫钟鸣岳计强
Owner HANGZHOU KANGJI MEDICAL INSTR