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Puncture outfit

A puncture device and a puncture rod technology, applied in the field of puncture device and rotary joint, can solve problems such as inconvenient operation, achieve the effect of overall simplicity, avoid the danger of air leakage, and improve the safety factor

Inactive Publication Date: 2013-03-06
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the air valve is set on the trachea and can rotate around the trachea, and it is very close to the cannula, so the operation is not convenient enough. During the operation, it often happens that the doctor accidentally touches it and causes air leakage.

Method used

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Experimental program
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Embodiment Construction

[0031] The invention provides a piercer, such as figure 1 , Figure 7 As shown, it includes a cannula 1 and a puncture rod (not shown in the figure) built in it for puncturing tissue. The cannula 1 is provided with a small hole 12 through the cannula wall, and the puncturer also includes a The air valve 50 arranged on the casing 1, the air valve 50 includes a pivot pipe 22 and a pipe joint 21 for connecting the air source, the pivot pipe 22 and the pipe joint 21 are integrally formed, the pivot There is an internal passage 110 between the pipe 22 and the pipe joint 21, and the internal passage 110 is connected to each other. The gas source enters through the vent end 210 of the pipe joint 21, and the small hole 12 communicates with the internal passage 110. The small hole 12 communicates with the main channel 10 of the casing 1 . The side wall of the pivot tube 22 is provided with a vent hole 220, and the vent hole 220 communicates with the internal channel 110. In order to ...

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PUM

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Abstract

The invention discloses a puncture outfit which comprises a sleeve, a puncture rod and an air valve. The puncture rod is disposed inside the sleeve and used for puncturing tissues sleeve, and the sleeve is provided with a pore running through the sleeve wall and communicated with the inside of the sleeve. The air valve comprises a pivot tube and a tube joint connected with an air source, the pivot tube and the tube joint are fixed with each other or formed integrally, an internal passage of the pivot tube is communicated with an internal passage of the tube joint, a vent hole is reserved on the side wall of the pivot tube and communicated with the internal passage of the pivot tube, and the air valve is in pivoting connection with the sleeve through the pivot tube, and can be rotationally switched between a first position and a second position of the sleeve. The puncture outfit has the advantages that the risk of air leakage during operation can be avoided, safety coefficient is improved, and the puncture outfit is simple and attractive integrally.

Description

technical field [0001] The invention relates to a trocar, in particular to a rotary joint of the trocar, belonging to the technical field of medical instruments. Background technique [0002] A trocar is a surgical instrument that pierces the abdominal wall and provides a passage for other minimally invasive surgical instruments to enter the body cavity, and belongs to a minimally invasive surgical instrument. [0003] A trocar generally includes a cannula serving as an access channel for other surgical instruments and a puncture rod penetrating through the cannula. To penetrate the skin, the epidermis of the skin is first incised with a scalpel, and then the puncture rod penetrates the abdominal wall and enters the body cavity. By applying pressure to the proximal end of the puncture rod, the tip of the puncture rod is pushed through the abdominal wall until it enters the body cavity. After the trocar enters the body cavity, the puncture rod is drawn out, and the sleeve c...

Claims

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Application Information

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IPC IPC(8): A61B17/34
CPCA61B17/3462A61B17/3474
Inventor 陈望东刘凯周婧
Owner TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD
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