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Fine puncture needle capable of controlling rebound of needle core by single hand

A puncture needle and hand-controlled technology, applied in the direction of puncture needles, puncture needles, trocars, etc., can solve problems such as troublesome operation, unfavorable aseptic operation, and difficult cooperation

Pending Publication Date: 2021-05-18
THE SECOND HOSPITAL AFFILIATED TO WENZHOU MEDICAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If another person assists in the operation, it is not conducive to aseptic operation, and there are problems of troublesome operation and difficult cooperation

Method used

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  • Fine puncture needle capable of controlling rebound of needle core by single hand
  • Fine puncture needle capable of controlling rebound of needle core by single hand
  • Fine puncture needle capable of controlling rebound of needle core by single hand

Examples

Experimental program
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Effect test

Embodiment Construction

[0021] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 and Figure 7 As shown, an embodiment of a fine puncture needle for one-handed control of needle core rebound provided by the present invention includes a brake release limiter 1, a pressing rod 2, a needle core 3, a support spring 4 and a needle sheath 5, The brake release limiter 1 is provided with a pressure rod socket 2-1 and a needle core socket 3-1, the pressure rod socket 2-1 communicates with the needle core socket 3-1, and the system The dynamic release limiter 1 is provided with a component installation space 6, the pressure rod 2 is inserted into the pressure rod socket 2-1, and the lower end of the pressure rod 2 is provided with a limit seat 7, and the limit seat 7 is located at the position where the component is installed. In the space 6, the needle sheath 5 is installed at the bottom of the brake release limiter 1, the upper end of the needle core 3 is connected to the limit se...

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Abstract

The invention discloses a fine puncture needle capable of controlling rebound of a needle core by single hand. The fine puncture needle comprises a brake release limiting piece, a pressing rod, the needle core, a supporting spring and a needle sheath, wherein the brake release limiting piece is provided with a pressing rod inserting hole and a needle core inserting hole; the brake release limiting piece is provided with a component installation space; the lower end of the pressing rod is provided with a limiting base; the limiting base is located in the component installation space; the needle sheath is installed at the bottom of the brake release limiting piece; the upper end of the needle core is connected with the limiting base; the needle core is sleeved with the supporting spring; the upper end of the supporting spring abuts against the limiting base; the lower end of the supporting spring abuts against the brake release limiting piece; a limiting base clamping head is arranged on the side wall of the component installation space; and pull rings are arranged on the two sides of the brake release limiting piece. The pull rings can drive the limiting base clamping head on the brake release limiting piece to move, so that tissue cells without diagnostic value are prevented from entering the needle sheath before a target is not reached, and cells with diagnostic value can enter the front end of the needle sheath through a puncture action after the target is reached.

Description

technical field [0001] The invention relates to a fine puncture needle capable of controlling the springback of a needle core with one hand. Background technique [0002] In recent years, cytological biopsy by real-time ultrasound-guided fine-needle aspiration has been increasingly used in daily medical work. This method is to obtain the target cells of the superficial organ tissue by means of fine needle insertion under ultrasound monitoring, so as to perform cytopathological diagnosis. It is often used in breast, thyroid, lymph nodes, etc. The fastest, easiest and safest way. Compared with the previous histological biopsy, it has the advantages of less damage, less risk, and equally reliable results. This involves the important tool of a fine puncture needle. [0003] In the actual puncture process, in order to ensure safety, the operator must hold the probe with one hand and the fine puncture needle with the other hand. Using a fine puncture needle with a needle core c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B10/02A61B17/34
CPCA61B10/0233A61B10/0266A61B17/3421A61B17/3496A61B2017/3454
Inventor 邹春鹏
Owner THE SECOND HOSPITAL AFFILIATED TO WENZHOU MEDICAL COLLEGE
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