End Cap Clip Mechanism for Stylet Handling in Biopsy
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Solution Overview
Problem
Current biopsy procedures, particularly endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA), face challenges in efficiently managing and reinserting stylets during multiple tissue sampling, requiring significant effort and complicating the procedure.
Innovation Solution
A device comprising an end cap with a clip mechanism that securely grips the distal portion of the stylet, allowing it to be easily removed and reinserted into the needle multiple times, reducing the effort required for stylet manipulation and maintaining control throughout the biopsy process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the stylet is manually removed and reinserted during biopsy procedures, then tissue sampling can be performed, but significant effort and time are required for stylet manipulation
Solution Approach 1:
The end cap is pre-equipped with a clip mechanism that is ready to grip the stylet before removal from the needle. This preliminary preparation allows the stylet to be quickly captured and reinserted without requiring complex manual manipulation during the procedure, thus reducing time loss while maintaining sampling productivity
2Adaptability or versatility
If the stylet is frequently removed and reinserted for multiple tissue sampling, then comprehensive biopsy can be achieved, but the procedure becomes more complex
Solution Approach 1:
The end cap with the clip mechanism serves multiple functions: it holds the stylet during storage, facilitates easy removal from the needle, and enables quick reinsertion. This multi-functional design allows comprehensive biopsy sampling without increasing manipulation complexity, as the same simple clip mechanism handles all stylet management tasks throughout the procedure
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
Enables single-handed manipulation of the stylet with minimal deviation from standard hand motions, significantly reducing the effort needed to store and reinsert the stylet, thereby simplifying the biopsy procedure and improving operational efficiency.
Implementation Method 1
the end cap including a clip mechanism for gripping a distal portion of the stylet when the end cap is decoupled from the needle
Data Source
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AI summary
A device for storing a stylet comprises a stylet sized and shaped for insertion into a lumen of a needle and an end cap selectively coupleable to a proximal end of a needle, the end cap being coupled to a proximal end of the stylet so that, when the end cap is coupled to the needle, the stylet extends from the end cap through the lumen of the needle, the end cap including a clip mechanism for gripping a distal end of the stylet when the end cap is decoupled from the needle, the clip mechanism including a space through which the distal end of the stylet may pass substantially parallel to the proximal end thereof.