Dermatome Blade Guard Assembly for Safe Handling
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Solution Overview
Problem
Conventional dermatomes lack effective protection mechanisms for the blade edges, leading to risks of unintended contact during handling, sterilization, transportation, storage, insertion, removal, and disposal.
Innovation Solution
A dermatome with a blade guard assembly that includes a fence and locator mechanisms to securely cover and orient the blade edge, allowing for safe handling and mounting, and can be easily attached and detached from the blade assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a blade guard assembly is added to cover the blade edge, then safety during handling is improved, but device complexity increases
Solution Approach 1:
The blade guard assembly is designed as a separate, detachable component from the blade assembly, allowing the guard to be attached only when needed for safety during handling, sterilization, transportation, or storage. This segmentation enables the blade assembly to remain simple during actual dermatome operation while providing protection when required.
Solution Approach 2:
The blade guard assembly acts as an intermediary protective element between the blade edge and the environment. It includes a fence that extends to cover the blade edge and locators that engage with the blade assembly to ensure proper positioning and orientation of the guard relative to the blade.
2Manufacturing precision
If a blade guard assembly with locator mechanisms is used to orient the blade guard, then positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The locator mechanisms are designed as simple, discrete features on both the blade guard assembly and blade assembly that engage together to establish precise orientation. These locators are separate from the main guard structure, allowing for easy manufacturing and assembly while ensuring accurate positioning of the fence relative to the blade edge.
3Ease of operation
If the blade guard can be easily attached and detached, then ease of operation is improved, but reliability of protection may worsen
Solution Approach 1:
The blade guard assembly is pre-assembled with the blade assembly in a controlled manufacturing environment, ensuring proper alignment and secure connection before the dermatome is used. This preliminary assembly ensures that when the guard is attached, it is already positioned correctly relative to the blade edge, maintaining both ease of operation and protection reliability.
Solution Approach 2:
The connection between the blade guard assembly and blade assembly uses simple mechanical engagement features (locators and corresponding receptacles) rather than complex fastening mechanisms. This allows for easy attachment and detachment while maintaining secure and reliable protection when the guard is in place.
Data Source
AI summary
A dermatome having a main body, a blade assembly and a blade guard, where the blade assembly has a blade edge and the blade guard has a base and a fence extending from the base toward the blade assembly so as to face the blade edge. The blade guard may include at least one blade assembly locator to facilitate the alignment of the blade guard with the blade assembly. A blade guard assembled on the blade assembly may operate so as to prevent unintended contact between the blade edge and objects.