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Pleura biopsy needle

A technology of pleural biopsy and needle core, which is applied in the field of medical devices, can solve problems such as high cost, inconvenient operation, and complex structure, and achieve the effects of improving success rate, reducing production cost, and ensuring smooth movement

Inactive Publication Date: 2013-06-26
WEST CHINA HOSPITAL SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At the same time, its structure is too complicated, it is not easy to operate and the cost is high

Method used

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Embodiment Construction

[0046] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below. All other implementations obtained below fall within the protection scope of the present invention.

[0047] First, before describing the specific implementation, in the embodiments provided by the present invention, it is stipulated that along the puncture direction of the pleural biopsy needle, the end close to the user is the rear end, and the end close to the puncture is the front end.

[0048] Such as Figure 1 to Figure 6 As shown, the pleural biopsy needle provided in the embodiment of the present invention includes a needle sheath 1 and a needle core 2, and the needle core 2 is placed in the needle sheath 1; The end is connected with the front end of the sealing cylinder 11, and the front end of the syringe 12 is formed with a chute 121; the syringe 12 is sleeved on the ...

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Abstract

The invention provides a pleura biopsy needle which comprises a needle sleeve and a needle core. The needle core is arranged in the needle sleeve. The needle sleeve comprises a sealed cylinder and a needle cylinder. The rear end of the needle cylinder is connected with the front end of the sealed cylinder. A slant groove is formed at the front end of the needle cylinder. The needle cylinder is sleeved on the outer wall of the needle core in a connected mode and matched with the needle core in a sliding mode. A first sealing ring is arranged in the sealed cylinder. The outer wall of the first sealing ring is fixedly connected with the inner wall of the sealed cylinder. The inner wall of the first sealing ring is sleeved on the outer wall of the needle core in a connected mode and matched with the needle core in a sliding mode. At first, the needle core and the needle sleeve pierce the pleural cavity, and then the pleural tissue is obtained by match of the needle core and the needle sleeve. A needle is not replaced in the whole process and the first sealing ring is used for sealing the needle sleeve so that the pleural cavity is not communicated with the outside and the rate of pneumothorax is reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a pleural biopsy needle. Background technique [0002] Common pleural diseases are often accompanied by pleural effusion. People often use thoracentesis to extract pleural effusion for cytological examination, but the diagnosis rate of pleural effusion alone is very low. [0003] When the pleural effusion extracted by thoracentesis cannot be diagnosed clearly, it is necessary to use a pleural biopsy needle for pleural needle biopsy; therefore, pleural biopsy needles, as common medical devices, are widely used in clinical medicine. [0004] The current common pleural biopsy needle generally includes a needle sleeve and two needle cores, one of which is a needle core and the other is a flat needle core, and a chute is formed on the needle sleeve. When in use, first push the needle point core into the needle sleeve, and use the needle point core to pierce the needle sleeve ...

Claims

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Application Information

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IPC IPC(8): A61B10/02
Inventor 吴松泽刘春涛
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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