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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.

Inactive Publication Date: 2021-03-12
张兴容
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the existing Veress needle is inflated, it usually needs to manually adjust the air intake 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 operation.

Method used

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  • Pneumoperitoneum needle for gastrointestinal surgery minimally invasive surgery
  • Pneumoperitoneum needle for gastrointestinal surgery minimally invasive surgery
  • Pneumoperitoneum needle for gastrointestinal surgery minimally invasive surgery

Examples

Experimental program
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Effect test

Embodiment 2

[0021] The distal end described in this embodiment refers to the end close to the abdominal cavity, such as Figure 5 The left end of the middle, the proximal end is the end near the intake, such as Figure 5 the right end of .

[0022] This embodiment discloses an integrated Veress needle for surgical operations. The Veress needle includes an outer tube 400 and an inner core 500. The outer tube 400 includes a ventilation cavity 410, and one end of the ventilation cavity 410 is used to enter Air, the air intake is a conventional way, and the other end is connected with two air passages 420, such as Figure 5 As shown, the two air intake channels are relatively distributed, and a sealing plate 430 is arranged in the air channel, and the sealing plate divides the air channel into a left cavity and a right cavity, and the right cavity communicates with the ventilation cavity, and the outer tube is provided with a There is a moving channel, and the moving channel extends from th...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34
CPCA61B17/3417A61B17/3474A61B17/3478A61B17/3494A61B2017/3456
Inventor 张兴容
Owner 张兴容
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