Adaptive Ergonomic Handle with Bendable Core for Dental Hand Tools
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Solution Overview
Problem
Dental clinicians experience high rates of musculoskeletal disorders due to the adverse effects of conventional rigid instrument handles, which cause fatigue, discomfort, and injuries from improper ergonomics and force distribution during dental procedures.
Innovation Solution
A hand tool apparatus with an elongate, adaptive ergonomic handle featuring a selectively bendable core that conforms to the user's hand, shifting weight and force distribution to reduce muscle engagement and promote proper positioning, constructed from materials that withstand sterilization and maintain shape configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid instrument handle is used, then structural strength and stability are maintained, but user fatigue and musculoskeletal disorders increase due to improper ergonomics and force distribution
Solution Approach 1:
The handle incorporates a selectively bendable core that allows dynamic adaptation to the user's hand anatomy during use. The core can be bent into different configurations to conform to various hand shapes and sizes, enabling the rigid handle structure to adapt ergonomically while maintaining its structural strength and stability during instrumentation procedures
2Ease of operation
If the handle is made adaptable to user hand shape, then ergonomics and force distribution improve, but the handle complexity increases
Solution Approach 1:
The handle employs a flexible outer covering that encases the selectively bendable core. This flexible shell can be deformed and molded to conform to the user's hand anatomy, providing ergonomic adaptation without requiring complex mechanical adjustment mechanisms. The flexible covering works in conjunction with the bendable core to achieve adaptability while keeping the overall structure relatively simple
3Reliability
If the handle material is made sterilization-resistant, then reliability during use is maintained, but the ability to conform to hand shape is reduced
Solution Approach 1:
The handle utilizes a composite construction combining a sterilization-resistant core material with a flexible conformable covering. The core provides structural integrity and sterilization resistance, while the outer flexible material can be deformed to match the user's hand shape. This composite approach allows the handle to maintain reliability during sterilization processes while achieving ergonomic adaptation during use
Data Source
AI summary
A hand tool apparatus is disclosed as providing an elongate, adaptive ergonomic handle portion. In at least one embodiment, the handle portion provides a pair of opposing handle ends. At least one of the handle ends provides an instrument portion. An at least one bendable core is positioned between the handle ends, the at least one core capable of being selectively bent into a variety of desired shape configurations, and substantially maintaining those shape configurations until the core is intentionally bent into a different desired shape configuration. As a result, the handle portion is capable of ergonomically conforming to a hand of a user while shifting a weight, as well as instrumentation forces and fulcrum of the apparatus and encouraging proper positioning of the instrument portion during use of the apparatus, regardless of the specific procedure to be performed using the apparatus.