Rotatable Handle for Needle Guide Positioning
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Solution Overview
Problem
Existing needle guide supporting devices are cumbersome for physicians during surgery, as they lack ergonomic handling features, making them difficult to operate effectively.
Innovation Solution
A rotatable handle that can be adjusted and fixed in multiple positions to facilitate the insertion, fixation, and blocking of a wedge-shaped needle guide, allowing for easier handling and operation by providing a secure mechanism for needle penetration and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a needle guide supporting device is provided without a rotatable handle, then the device structure remains simple, but the device becomes cumbersome and difficult to operate during surgery
Solution Approach 1:
The handle is designed to be rotatable relative to the device body, allowing dynamic adjustment between different operational positions (insertion position, fixation position, blocking position). This dynamic element enables the device to adapt to different surgical needs without requiring multiple separate tools, thereby improving ease of operation while maintaining reasonable structural complexity.
2Ease of operation
If a rotatable handle is added to the needle guide supporting device, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The rotatable handle serves multiple functions depending on its rotational position: it can insert the needle guide, fixate the needle guide in place, or block the needle guide to prevent needle penetration. By consolidating these multiple functions into a single rotatable component, the device achieves multi-functionality that improves ease of operation without proportionally increasing structural complexity.
3Adaptability or versatility
If the rotatable handle is designed with multiple fixed positions, then the adaptability for different needle angles is improved, but the mechanism complexity increases
Solution Approach 1:
The handle and device body are equipped with specific local features (protrusions on the handle, corresponding recesses on the device body) that engage at predetermined rotational positions. These localized structural features enable the handle to be fixed at specific angles, providing adaptability for different needle insertion angles while keeping the overall mechanism relatively simple through targeted geometric design.
4Reliability
If the needle guide is securely fixed to the device, then the reliability of needle guide positioning is improved, but the ease of detaching and disinfecting the components is reduced
Solution Approach 1:
The fixation mechanism is designed to be dynamically reversible: the rotatable handle can be rotated to engage protrusions and recesses for secure fixation during use, or rotated further to disengage and allow detachment of the needle guide for cleaning and disinfection. This dynamic design enables the system to switch between reliable fixation and easy disassembly modes as needed.
Data Source
AI summary
A needle guide supporting device with clips means (2) for detachable fastening to an ultrasound head (3), said device being shaped for detachable reception of a wedge-shaped needle guide (5). According to the invention, the device is provided with a rotatable handle (4) being adjustable and optionally fixable in various positions for the insertion and fastening of said needle guide (5), respectively, the rotatable handle (4) in a first position allowing an insertion of the wedge-shaped needle guide (5) and in a second position serving for fixing said needle guide (5) as well as allowing the needle (7) to penetrate said needle guide (5), and in a third position not allowing a needle (7) to penetrate said needle guide (5). In this way, a needle guide supporting device is obtained which is easier to operate by a physician during surgery.