Detachable Grip Shell for Medical Instrument Ergonomics
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Solution Overview
Problem
Medical instruments with slender rod-shaped grip parts have inadequate ergonomic design, leading to suboptimal handling and the need for adaptable solutions that are cost-effective and customizable to individual physician requirements.
Innovation Solution
A detachable grip shell system that can be securely attached to existing grip parts, increasing the grip surface size and/or shape, allowing for ergonomic improvement and customization without altering the instrument, with options for slide-on, plug-on, and clamping designs, and including features like rounded edges and secure fixation elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the grip parts are made slender with small cross section, then the instrument can be more maneuverable and less bulky, but the grip surface area becomes too small for optimal ergonomic handling
Solution Approach 1:
The grip arrangement is divided into separate modular components: the original slender grip part and the detachable grip shell. This segmentation allows the grip surface area to be increased by adding the shell without changing the original slender design of the grip part, thus maintaining maneuverability while improving ergonomic handling.
Solution Approach 2:
The grip shell is designed to fit over and enclose the grip part, creating a nested structure where the smaller grip part is contained within the larger grip shell. This nesting approach increases the external grip surface area while preserving the compact internal structure, solving the contradiction between small cross-section and adequate grip surface.
2Adaptability or versatility
If complete handles are made removable to adapt to different physician needs, then customization is possible, but the structure becomes complex and expensive
Solution Approach 1:
The handle is segmented into the permanent grip part integrated with the instrument and detachable grip shells. This partial segmentation allows customization through shell replacement without requiring removal of the entire handle, thus reducing structural complexity compared to completely removable handles while maintaining adaptability.
Solution Approach 2:
The grip part is designed as a universal base that can accommodate multiple different grip shells. This multi-functionality allows a single grip part to serve various customization needs by simply changing the shell, reducing the overall system complexity compared to having multiple complete removable handles.
Data Source
AI summary
A grip arrangement, for a medical instrument having a handle with two rod-shaped grip parts each with a grip surface, has, for each grip, a grip shell which can be secured in a detachable manner on the respective grip part, with in each case a grip surface of the grip parts which is of a larger size and/or of a different shape compared to the grip surface of the grip parts.