Ergonomic Pipette Handle With Adjustable Lower Support
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Solution Overview
Problem
Conventional pipettes require excessive grip force, especially when placing the pipette tip, due to a lack of adequate support for the hand, leading to user discomfort and fatigue.
Innovation Solution
The pipette features a lower support protrusion at the handle's lower edge, which is adjustable in height and rotation, providing additional grip stability and reducing the need for excessive grip force, combined with a finger support and optional connecting support section for improved ergonomics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional pipette handles are used with basic finger support, then the structure remains simple, but the hand slides downwardly requiring excessive grip force
Solution Approach 1:
The handle structure is segmented into multiple functional zones: upper finger support, middle lower support, and lower support. Each segment provides specific ergonomic functionality, with the lower support being a distinct protrusion that prevents hand sliding without requiring excessive grip force.
Solution Approach 2:
The lower support protrudes radially from the handle surface in a direction perpendicular to the longitudinal axis, creating a third-dimensional contact point for the hand. This radial protrusion provides additional support in the downward direction without increasing the handle's longitudinal or radial dimensions significantly.
2Adaptability or versatility
If the lower support is made adjustable and rotary, then hand positioning comfort is optimized, but the device complexity increases
Solution Approach 1:
The lower support transitions from a fixed static structure to a dynamic adjustable one. It can be positioned at different heights along the handle and rotated to different angular positions, allowing adaptation to various hand sizes and gripping preferences while maintaining structural simplicity.
Solution Approach 2:
The lower support's position parameters (height and angle) are made variable. The support can be adjusted to different vertical positions along the handle and rotated to different angular orientations, enabling optimization of ergonomic fit for different users without fundamentally changing the overall device architecture.
3Ease of operation
If the lower support protrudes 3-8 mm from the handle surface, then grip stability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The lower support provides localized ergonomic enhancement at a specific position on the handle. The protrusion is concentrated in a small radial region (3-8 mm from surface) rather than uniformly increasing the handle dimensions, providing targeted grip stability improvement with minimal impact on overall manufacturing tolerances.
Data Source
Figure 1~2
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AI summary
A support pipette including at least one cylinder with an upper end and a lower end, each cylinder having a movable piston, and an elongate handle (1) with an upper part and a lower part, at which handle the pipette can be manually gripped, wherein the lower part (13.1; 13.2; 13.3) of the handle (1) includes a sideways protruding lower support (10.1; 10.2; 10.3; 10.4; 10.5).