Guide structure capable of reducing deformation of puncture needle

A guiding structure and puncture needle technology, applied in the field of medical devices, can solve the problems of puncture needle deformation, end position deviation, etc., and achieve the effects of reducing deformation, reducing end position deviation, and improving end accuracy

Pending Publication Date: 2021-02-09
SHANGHAI SIMPLE TOUCH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in existing puncture operations, when the puncture needle touches the surface of the human body, due to the resistance of the human skin, it is easy to cause the deformation of the puncture needle, which will lead to the deviation of the end position after entering the human body

Method used

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  • Guide structure capable of reducing deformation of puncture needle
  • Guide structure capable of reducing deformation of puncture needle
  • Guide structure capable of reducing deformation of puncture needle

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing, the present invention will be further described as follows:

[0017] As shown in the accompanying drawings, the present invention provides a guide structure that can reduce the deformation of the end of the puncture needle in puncture surgery. The guide structure includes a guide device fixed part 6 and a guide device movable part 7, and the guide device movable part 7 includes a needle cover of the movable part. 4. The needle sheath 4 of the movable part is in the shape of a straight tube, and the needle sheath 4 of the movable part is provided with a penetrating needle inlet 5 along the axial direction. A needle cover housing chamber 8 and a needle outlet port 1 of the fixing part are provided. The inner diameter of the needle housing housing chamber 8 is larger than the outer diameter of the needle cover 4 of the movable part. The needle cover accommodating cavity 8 extends from the needle-entry end of the main body 2 o...

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Abstract

The present invention relates to a guide structure capable of reducing deformation of a puncture needle. The guide structure comprises a guide device fixed part and a guide device movable part, the guide device movable part comprises a movable part needle sleeve, a through movable part needle inlet is arranged in the movable part needle sleeve along an axial direction, the guide device fixed partcomprises a fixed part main body, a needle sleeve containing cavity and a fixed part needle outlet are formed in the fixed part main body in an axial direction, an inner diameter of the needle sleevecontaining cavity is larger than an outer diameter of the movable part needle sleeve, a fixed part needle outlet is formed in a needle outlet end in the fixed part main body, and the needle sleeve containing cavity extends to the fixed part needle outlet from a needle inlet end of the fixed part main body and communicates with the fixed part needle outlet, and a locking knob is arranged at the needle inlet end of the fixed part main body and used for adjusting a position of the movable part needle sleeve in the needle sleeve containing cavity. Compared with the prior art, deformation of the puncture needle caused by human skin resistance can be reduced to a maximum extent, a tail end position deviation caused by deformation is reduced, and a tail end precision of a puncture operation is improved.

Description

[technical field] [0001] The invention relates to the technical field of medical instruments, in particular to a guiding structure capable of reducing deformation of a puncture needle. [Background technique] [0002] At present, in existing puncture operations, when the puncture needle touches the surface of the human body, due to the resistance of the human skin, the puncture needle is likely to be deformed, which will lead to a deviation of the end position after entering the inside of the human body. Therefore, it will have very important clinical significance if a guiding or fixing device that can reduce the deformation of the puncture needle can be provided. [Content of the invention] [0003] The purpose of the present invention is to solve the above-mentioned deficiencies and provide a guiding structure that can reduce the deformation of the puncture needle, which can minimize the deformation of the puncture needle due to the resistance of the human skin, reduce the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34
CPCA61B17/3403A61B2017/3405
Inventor 路迎
Owner SHANGHAI SIMPLE TOUCH TECH CO LTD
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