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Air pressure balanced puncture device

A technology of air pressure balance and puncture device, which is applied in the field of medical supplies, can solve problems such as pollution and blockage, and achieve the effects of increasing airflow velocity, preventing airflow turbulence, and improving efficiency

Active Publication Date: 2018-10-16
魏云海 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, such a physical valve will slightly interfere with the movement of the puncture needle; on the other hand, when the puncture needle or endoscope is taken out, there will be some residual tissue remaining on the valve, causing pollution and blockage

Method used

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  • Air pressure balanced puncture device
  • Air pressure balanced puncture device
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1, such as figure 1 , figure 2 , image 3 with Figure 4 Shown: a trocar with air pressure balance, including an outer sheath 1, the bottom of the outer sheath 1 includes a piercing part 13, the piercing part 13 can be a needle cone, which is convenient for piercing into the patient's surgical site.

[0032] After piercing, an air supply device is provided on the outside of the trocar, and the airflow is input through the air inlet 3 . After the airflow is input, it does not directly enter the inner cavity 12 from the air inlet 3 , otherwise the wind direction in the inner cavity 12 may be disturbed. Ad hoc guide air duct 7, one end of guide air duct 7 is connected to air inlet 3, and the other end is located at the place near the entrance of inner cavity 12, which plays a guiding role for the wind input into inner cavity 12. In actual production, a plurality of guiding air channels 7 can be provided, and are arranged around the inner cavity 12 .

[0033] ...

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PUM

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Abstract

The invention relates to the field of medical products, in particular to an air-pressure balance puncture set which comprises an outer sheath, an air inlet, an air guide duct and an air outlet. The outer sheath comprises an outer sheath wall, an inner cavity and a puncture portion, the inner cavity is formed in the middle of the outer sheath wall, the puncture portion is used for puncturing the body of a patient, the outer sheath wall is of a hollow structure and provided with a gas outlet layer for discharging gas, one end of the air guide duct is connected with the air inlet, the other end of the air guide duct is communicated with the inner cavity, and the air outlet is connected with the gas outlet layer. Gas entering and gas exiting of the puncture set are mutually separated, and entering and exiting of gas flow in one puncture set are balanced, so that a patient surgery place is constantly in a good surgical operation space.

Description

technical field [0001] The invention relates to the field of medical supplies, in particular to a trocar with air pressure balance. Background technique [0002] Trocars are common surgical medical devices, and are widely used in surgical operations such as abdominal surgery and thoracic surgery. A common puncture device, such as the structure disclosed in the Chinese patent document CN 103284779 A, ​​includes an outer sheath and an inner cavity arranged in the outer sheath. During the operation, the puncture device needs to be inserted into the patient's body, and then such as Inert gases such as carbon dioxide are injected into the patient's body to open up space and provide vision and operating space for surgery. [0003] The inner cavity of the existing puncture device is used for air intake. During the operation, the patient's wound produces blood and smoke, which needs to be sucked out. No matter for the substance with larger volume or smaller substance, it is often ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/00A61B17/34
CPCA61B17/00234A61B17/3478A61B2017/0034
Inventor 魏云海牟一平魏忠民邵婕梅敬泉
Owner 魏云海
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