Puncture Needle Holder with Adjustable Link Bar
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Solution Overview
Problem
Conventional puncture needle holders require multiple accessories and are cumbersome due to the need for different holders or catheters to accommodate needles of varying sizes, leading to increased complexity and risk of loss, as well as inconvenient operation.
Innovation Solution
A puncture needle holder with a base frame, link bar, first seat part, second seat part, and positioning mechanism, where the link bar is pivotably connected to the base frame, allowing adjustment of the guiding space between the seat parts to accommodate needles of different sizes, reducing the number of accessories and simplifying operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional puncture needle holders use multiple accessories and different holders or catheters for needles of varying sizes, then the ability to accommodate different needle sizes is improved, but the device complexity and number of accessories increase
Solution Approach 1:
The puncture needle holder employs a universal catheter with a flexible body that can accommodate puncture needles of different sizes through its expandable guiding space. The catheter's flexible material allows it to be expanded to different degrees, creating guiding spaces suitable for various needle diameters, thereby eliminating the need for multiple specialized holders or catheters.
Solution Approach 2:
The catheter is designed with a flexible body that can dynamically change its shape and size. The guiding space within the catheter can be expanded or contracted to match the diameter of different puncture needles, allowing the same catheter to adapt to various needle sizes rather than requiring fixed, size-specific holders.
2Adaptability or versatility
If multiple accessories are used to accommodate different needle sizes, then the versatility is improved, but the ease of operation deteriorates due to inconvenient switching and increased risk of loss
Solution Approach 1:
The universal catheter serves multiple functions by accommodating puncture needles of different sizes within a single device. The flexible catheter can be expanded to different degrees to create guiding spaces for various needle diameters, eliminating the need to switch between multiple specialized holders and reducing the risk of losing accessories.
Data Source
AI summary
A puncture needle holder comprising a base frame, a link bar, a first seat part, a second seat part, and a positioning mechanism is disclosed.