Universal abdominal paracentesis device

A technology of abdominal cavity and puncture needle, which is applied in the field of medical equipment, can solve the problems of gas leakage in the abdominal cavity, and achieve the effect of avoiding gas leakage

Inactive Publication Date: 2011-11-02
郭玉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a universal abdominal puncture device in order to overcome the defect that the sealing part of the existing casing cannot rotate with the surgical instrument, causing the gas in the abdominal cavity to leak out.

Method used

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  • Universal abdominal paracentesis device

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Experimental program
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Effect test

Embodiment Construction

[0014] Such as figure 1 As shown, a universal abdominal puncture device of the present invention includes a housing 12 with an inner cavity for placing a sealing assembly. The rear end of the housing 12 is provided with a puncture shell 15. It passes through the casing 12 in the axial direction and cooperates with the positioning platform of the casing 12. A lower sealing ring 13 is arranged between the axial end surface of the positioning platform of the casing 12 and the puncture shell 15. In the casing 12 A fixed ring 11 is provided to press on the axial end surface of the puncture shell 15 in the housing 12 to limit the axial movement of the puncture shell 15, and a butterfly sealing ring 10 is arranged in the housing 12, and the butterfly sealing ring 10 has The stepped shaft-shaped outer contour can be pressed on the thin-walled front end axial end surface of the fixed ring 11, and a pressure ring 9 is also provided in the housing 12, which is placed on the front end axi...

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Abstract

The invention relates to a universal abdominal paracentesis device. A paracentesis shell (15) is arranged at the rear end of a shell (12); and a paracentesis needle (1) passes through a sealing assembly from the front end of the shell and extends into the paracentesis shell. The device is characterized in that: a ball-shaped connecting piece (7) is fixedly connected with the front end of the shell (12), and a through hole of the ball-shaped connecting piece is matched with the paracentesis needle; and the ball-shaped connecting piece (7) and a ball cup (4) form the universal flexible connection, the front end of the ball cup (4) is connected and matched with a gland (2), and an elastic sealing part (3) is arranged between the ball cup and the gland and is in seal fit with the periphery ofthe paracentesis needle. The universal connection is formed through the ball-shaped connecting piece; and when a medical apparatus is inserted into the abdominal cavity and rotates, the elastic sealing part can rotate along with the medical apparatus to ensure that the elastic sealing part forms effective sealing at the periphery of the medical apparatus and cannot be deformed due to the rotationof the medical apparatus, so that the leakage of gas is avoided.

Description

technical field [0001] The invention relates to a medical device, in particular to a universal paracentesis device. Background technique [0002] In the current laparoscopic surgery, the doctor uses the puncture device to puncture the patient's abdomen, then takes out the puncture needle of the puncture device, inserts it into the laparoscope, injects carbon dioxide into the abdominal cavity through the pneumoperitoneum machine interface of the puncture device, and establishes pneumoperitoneum, and then the doctor can Laparoscopic surgery is performed under the supervision of a laparoscope. At present, the puncture device includes a housing with a sealing assembly. The first end of the housing is provided with a puncture shell, and a puncture needle is inserted from the second end of the housing through the sealing assembly to the puncture shell. Inside, an air intake pipe is also provided on the outer periphery of the shell, and a through hole is provided on the shell and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34
Inventor 李海燕
Owner 郭玉
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