Encapsulated Reamer Driver Assembly for Debris and Tissue Protection
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Solution Overview
Problem
Existing reamer drivers fail to prevent debris and abrasion of soft tissues during use.
Innovation Solution
A surgical reamer driver with four components: a housing assembly, a transmission drive train, a motor shaft coupling, and a handle assembly. The transmission drive train is fully encapsulated, avoiding penetration of debris and abrasion of soft tissues during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the reamer driver uses an open connection mechanism, then it allows easy access and simplicity, but debris and bone chips can enter and jam the mechanism
Solution Approach 1:
The connection mechanism is nested within a sealed housing assembly, with the drive train enclosed inside. The reamer connects through a controlled interface that prevents debris from entering the internal mechanism while maintaining ease of connection through a simple external interface.
Solution Approach 2:
A sealed housing assembly acts as a protective shell enclosing the drive train, preventing debris penetration while allowing the connection mechanism to function. The housing provides a barrier that maintains the internal mechanism's protection without complicating the external connection process.
2Ease of repair
If the transmission drive chain is exposed, then it allows easy access for maintenance, but soft tissues can be abraded during use
Solution Approach 1:
The drive train is nested within the housing assembly, which provides protection against soft tissue abrasion during use. The modular design allows the entire drive train to be removed as a unit for maintenance, preserving ease of repair while eliminating the hazard of exposed moving parts.
Solution Approach 2:
The device is segmented into modular components (housing assembly, drive train, reamer) that can be independently removed and maintained. This segmentation allows the drive train to be protected during use while remaining accessible for maintenance through simple module removal.
3Reliability
If the locking mechanism has multiple components, then it provides secure locking, but it creates spaces where debris can trap
Solution Approach 1:
The locking mechanism uses a plate nested within the housing assembly that provides secure locking through a simple, smooth surface design. The nested configuration eliminates crevices and spaces where debris could trap, while the plate's design ensures reliable locking functionality.
4Reliability
If the reamer driver is fully assembled, then it provides complete functionality, but components cannot be easily replaced when worn
Solution Approach 1:
The reamer driver is designed as a segmented modular system where the housing assembly, drive train, and reamer are separate interchangeable components. This allows the device to maintain complete functionality when assembled while enabling easy replacement of worn components by simply removing and replacing the affected module.
Solution Approach 2:
The connection between components is designed to be dynamic and reversible, allowing the reamer and drive train to be easily attached and detached from the housing assembly. This dynamic connection maintains functional completeness during use while facilitating easy component replacement when wear occurs.
Data Source
AI summary
A system, method and/or reamer driver device provides a fully closed tube which prevents the invasion of debris and minimizes abrasion of soft tissue during use. The reamer device includes a minimum number of component assemblies, so as to permit easy replacement and minimize wear.