Biopsy Needle Guide With Slide Button Separation
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Solution Overview
Problem
Existing biopsy needle guide devices face challenges in efficiently separating the guide needle and core needle, which complicates the biopsy process and reduces operator efficiency.
Innovation Solution
A needle guide device with a housing, a core needle, and a guide needle assembly, featuring a slide button mechanism and a spring system that allows for easy detachment of the guide needle from the core needle using a one-touch operation, enabling efficient separation and improved handling with one hand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional needle guide device is used, then the biopsy procedure can be performed, but the separation of guide needle and core needle is complicated and time-consuming
Solution Approach 1:
The device employs a dynamic locking mechanism where the hub can transition between locked and unlocked states. The sliding button mechanism allows the hub to move axially, enabling quick transition from a locked state (during biopsy) to an unlocked state (for separation), making the separation process dynamic and efficient rather than static and manual
Solution Approach 2:
The needle guide device is segmented into distinct functional components: the housing, the hub, the guide needle, and the core needle. This segmentation allows the hub to be independently manipulated via the sliding button, enabling selective separation of the guide needle from the core needle without affecting other components, thus simplifying the separation operation
2Reliability
If a secure locking mechanism is used to hold the guide needle, then reliable positioning is achieved, but the mechanism for release becomes complex
Solution Approach 1:
The sliding button serves as an intermediary element that mediates between the operator's action and the locking mechanism. When the button is slid, it actuates the hub to release from the locked position. This intermediary simplifies the release mechanism by providing a single, intuitive control point rather than requiring direct manipulation of complex locking components
Solution Approach 2:
The locking mechanism is designed to be self-locking during the biopsy procedure, maintaining secure positioning without continuous operator input. The spring-loaded hub automatically engages with the guide needle holder to maintain reliable positioning. For release, the system is self-service in that the sliding button automatically triggers the hub to disengage, eliminating the need for complex manual release procedures
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device facilitates quick and efficient separation of the guide needle and core needle, enhancing biopsy efficiency and operator convenience by allowing for easy handling and improved speed and accuracy during tissue sampling.
Implementation Method 1
a spring mounted in the bore of the housing to apply an elastic force in a direction in which the hub is pushed out of the bore of the housing
Data Source
AI summary
The present invention relates to a needle guide device having a housing, a core needle, a guide needle assembly having a slide or a push button and a spring for biopsy, which is capable of easily separating a guide needle and a core needle.