一种活检穿刺装置
By designing a blocking structure to limit the deformation of the snap-fit structure, the problem of internal components detaching during biopsy needle firing is solved, improving the safety and reliability of the device and ensuring the smooth progress of the surgery.
CN115998379BActive Publication Date: 2026-07-17NINGBO XINWELL MEDICAL TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGBO XINWELL MEDICAL TECH CO LTD
- Filing Date
- 2021-10-22
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing biopsy needles are prone to causing internal components to detach when fired, posing safety hazards and prolonging the operation time.
Method used
A biopsy puncture device is provided, comprising a handle housing, a skeleton, a needle body assembly, and a firing mechanism assembly. Through the design of the handle housing, skeleton, needle body assembly, and firing mechanism, a blocking structure is used to limit the deformation of the locking structure and prevent detachment.
Benefits of technology
This improves the safety and reliability of the device, prevents internal components from slipping or separating, and ensures the smooth progress of the surgery.
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Smart Images
Figure CN115998379B_ABST
Abstract
一种活检穿刺装置，包括柄壳件、骨架件、针体组件和击发件；骨架件插装于柄壳件内，且骨架件具有用于卡接柄壳件的卡扣结构，针体组件和击发件以能够在骨架件上移动的方式装设于骨架件，并且针体组件与骨架件弹性卡接设置，击发件则具有阻挡结构；当击发件沿其移动轨迹移动至解锁位时，能够解除针体组件与骨架件之间的卡接锁定状态，使针体组件受弹性势能释放作用而移动，并且同时使阻挡结构一直处于卡扣结构的内侧，以限制卡扣结构向内变形。在针体组件被瞬间击发的同时，借助阻挡结构对卡扣结构所产生的阻挡限制作用，使卡扣结构在针体组件的惯性作用力下因无法变形或过度变形而稳定地卡接柄壳件，避免装置的内部件与柄壳件滑脱分离。
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