Palm-Positioned Razor Grip for Tendonitis Relief
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Solution Overview
Problem
Existing razor devices often exacerbate tendonitis and carpal tunnel symptoms due to the need for a closed hand grip during shaving, which can lead to discomfort and injury.
Innovation Solution
A razor device featuring a grip designed to fit comfortably in the palm of the hand, with a removably coupled blade unit that allows for shaving without aggravating these conditions, incorporating a concavely arcuate panel and horns for enhanced grip retention and a frame with lubrication strips for comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional razor grip design is used, then the blade can effectively shave hair, but the closed hand grip exacerbates tendonitis and carpal tunnel symptoms
Solution Approach 1:
The patent inverts the traditional grip mechanism by designing a palm-resting platform instead of a hand-closing handle. The blade unit is positioned to rest in the palm with fingers naturally curled around the sides, transforming the gripping action into a supportive palm placement that avoids finger flexion and wrist strain associated with traditional razors.
Solution Approach 2:
The razor is segmented into distinct functional zones: a palm-resting platform for support, side wings for finger placement, and a blade unit positioned for access. This segmentation allows each part to serve its specific function while collectively providing an ergonomic solution that distributes pressure and avoids concentrated stress on tendons and carpal tunnel areas.
2Object-affected harmful factors
If the grip is designed for open palm positioning, then tendonitis and carpal tunnel symptoms are inhibited, but grip retention and control may be compromised
Solution Approach 1:
The grip features asymmetric design elements including side wings of different dimensions and positioned at unequal distances from the blade unit. This asymmetry creates natural finger placement zones that enhance control without requiring tight gripping, allowing fingers to rest comfortably on the asymmetric surfaces for stable handling.
Solution Approach 2:
The palm platform and side wings incorporate curved surfaces that conform to the natural contours of the hand and fingers. These curved surfaces provide ergonomic contact points that enhance grip retention through surface area and contour matching, while maintaining the open palm positioning that benefits users with tendonitis or carpal tunnel.
3Ease of repair
If the blade unit is removably coupled to the grip, then blade replacement and maintenance are simplified, but device complexity increases
Solution Approach 1:
The blade unit is extracted as a separate, removable component from the grip assembly. This extraction allows the blade to be easily detached and replaced without affecting the grip structure, simplifying maintenance while the coupling mechanism remains integrated into the overall design to minimize additional complexity.
Solution Approach 2:
The removable coupling mechanism serves multiple functions: securing the blade during use, enabling easy removal for replacement, and potentially accommodating different blade types. This multi-functionality reduces the need for separate mechanisms for each function, thereby limiting the increase in device complexity while achieving ease of maintenance.
Data Source
AI summary
A razor assembly for shaving with an open palm includes a grip. The grip may be positioned in a palm of a hand thereby facilitating the grip to inhibit symptoms of tendonitis. A blade unit is removably coupled to the grip. Thus, the blade unit may shave hair.