Pneumoperitoneum needle for gastrointestinal surgery minimally invasive surgery

A technique for minimally invasive surgery and pneumoperitoneum needles, which can be used in puncture needles, trocars, etc., to solve problems such as excessive size, affecting the operation, and insufficient air pressure.
CN112472252AInactive Publication Date: 2021-03-12张兴容
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
张兴容
Publication Date
2021-03-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The pneumoperitoneum needle is located in the field of gastrointestinal surgery and comprises a needle pin and a needle core connected with the needle pin in a matched mode, the needle core comprisesan air pipe, the air pipe is connected with an air valve assembly, the tail end of the air pipe can be inserted into an abdominal cavity, an air outlet is formed in the tail end of the air pipe, and an air control unit is arranged in the air pipe. The air control unit comprises a side plate, a narrow channel is formed in the middle of the side plate, the air control unit further comprises an air stopping block capable of being matched with the narrow channel, the air stopping block is of a cylinder structure, a cavity is formed in the air stopping block, a plurality of air channels extending from the cavity to the outside are formed in the side face of the air stopping block, and an air inlet is formed in one side of the air stopping block. The air inlet is communicated with a cavity in the air blocking block and faces the air valve assembly.
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Description

technical field

[0001] The present invention relates to the field of gastrointestinal surgery. Background technique

[0002] The Veress needle is a clinical medical device used for abdominal puncture, which is composed of a Veress needle, a stylet and a handle. The existing Veress needle has a spring protection device. When puncturing the abdominal wall, the needle core is retracted when it meets resistance. Inside the needle sheath, the tip of the needle sheath can penetrate the abdominal wall. When the needle sheath pierces the peritoneum and enters the abdominal cavity, the abdominal cavity is filled with carbon dioxide gas, and the resistance disappears. Blunt tip to avoid stabbing the abdominal viscera.

[0003] When the existing Veress needle is inflated, the air intake usually needs to be manually adjusted to ensure the air pressure in the abdominal cavity. In this case, sometimes the air pressure in the abdominal cavity is insufficient or too high, which affects the...

Claims

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