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Bushing with retractable gas receiving pipe

A trachea and cannula technology, which is applied to the cannula and trocar field of trocars, can solve the problems of air leakage and inconvenient operation, and achieve the effects of improving the safety factor, avoiding the danger of air leakage, and having a reasonable movement relationship.

Active Publication Date: 2015-04-15
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The air valve is set on the trachea and can rotate relative to the trachea, but because it is very close to the handle of the cannula, it is not convenient to operate, and it is often accidentally touched by the doctor during the operation, resulting in air leakage

Method used

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  • Bushing with retractable gas receiving pipe
  • Bushing with retractable gas receiving pipe
  • Bushing with retractable gas receiving pipe

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] The invention provides a trocar sleeve, such as figure 1 As shown, includes a main channel 10 ( image 3 As shown), the wall of the sleeve 100 has a groove 14 inward, and a cylinder 11 is arranged in the groove. Road 12.

[0020] The cylindrical body 11 is sleeved with an air connection tube 20 that can slide axially relative to the cylindrical body 11, combined with figure 2 with image 3 As shown, the gas connection pipe 20 is connected to an external gas source (not shown), and it includes a gas passage 21, the inner diameter of the gas passage 21 is equal to the outer diameter of the cylinder 11, so that the gas connection pipe 20 is It can be sleeved outside the cylindrical body 11 .

[0021] An air core 22 is also provided in the gas channel 21, and the gas core 22 is fixed in the gas channel 21 through a connecting piece 23, and the connecting piece 23 is provided with a through vent hole 24, and the gas core 22 The diameter of 22 is equal to the inner diam...

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Abstract

The invention discloses a bushing with a retractable air receiving pipe, which is characterized in that a groove is arranged inwards on a wall of the bushing, a cylindrical body is arranged in the groove, the cylindrical body comprises an air course, an air receiving pipe which can slide relative to the axial direction of the cylindrical body is sleeved on the cylindrical body, the air receiving pipe comprises an air passage, an air core is also arranged in the air passage, the diameter of the air core is equal to the inner diameter of the cylindrical body, when the air receiving pipe is arranged on a first position of the bushing, the air core is plugged into the air course of the cylindrical body; and when the air receiving pipe is arranged on a second position of the bushing, the air core moves out of the air course of the cylindrical body. The bushing has the beneficial effects that the structure of the air receiving pipe which is used for being communicated or disconnected with an air source and retractable connection and movement relation between the air receiving pipe and the bushing are more reasonable than a bushing structure of the prior art, so that the bushing is difficult to touch by a doctor in an operation process, an air leakage danger in the operation can be avoided, and the safety coefficient is increased.

Description

technical field [0001] The invention relates to a puncture device, in particular to a sleeve used in the puncture device, and belongs 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. 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 th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/34
Inventor 陈望东刘凯
Owner TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD
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