Adjustable Reamer Driver and Impactor for Simpler Mode Switching
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Solution Overview
Problem
Existing modular acetabular impactor and reamer systems are complicated to configure and switch between different modes of operation, making them inefficient for surgical procedures.
Innovation Solution
A surgical instrument with an adjustable handle that can be rearranged between first and second positions, allowing it to function as both a reamer and an impactor, featuring a drive mechanism with interchangeable connectors and a swivelable handle for easy configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a modular acetabular impactor and reamer system with multiple components is used, then the instrument can perform multiple functions, but the configuration and switching between modes becomes complicated
Solution Approach 1:
The handle assembly is designed to perform multiple functions - serving as both a reamer handle and an impactor handle through a single unified structure. The handle includes a reamer receiving portion and an impactor receiving portion that can be selectively engaged, eliminating the need for separate handles for each function and simplifying the overall system configuration.
Solution Approach 2:
The invention combines the reamer handle and impactor handle into a single integrated handle assembly. The handle assembly merges the reamer receiving portion and impactor receiving portion into one unified structure that can be selectively engaged with the reamer and impactor components, reducing the number of separate components and simplifying configuration.
2Adaptability or versatility
If multiple separate handles are used for reamer and impactor functions, then each function can be optimized, but the number of components and configuration steps increases
Solution Approach 1:
The handle assembly is designed as a universal component that can serve both as a reamer handle and an impactor handle. The selective engagement mechanism allows the surgeon to switch between functions by simply engaging or disengaging the handle assembly with the appropriate component, making the operation simpler compared to managing multiple separate handles.
Solution Approach 2:
The handle assembly incorporates a dynamic selective engagement mechanism that allows it to transition between different functional states. The reamer receiving portion and impactor receiving portion can be selectively engaged or disengaged based on the surgical task, providing flexibility without requiring multiple fixed handles.
Data Source
AI summary
An instrument comprising a body comprising a distal end spaced apart from a proximal end relative to a longitudinal axis and a handle coupling located near the proximal end, the body defining a channel miming between the distal end to the proximal end; a drive comprising a first connector located adjacent the distal end and adapted to be connected to a driven instrument, a second connector located adjacent the proximal end and adapted to be connected to a driving instrument, and a drive shaft arranged in the channel, the drive shaft coupling the second connector to the first connector; and an adjustable handle located near the distal end, the adjustable handle comprising a grip spacing apart a leading end from a trailing end along a handle axis, the leading end coupling the handle to the handle coupling, the trailing end shaped to define an impaction plate; wherein the adjustable handle is arrangeable relative to the body in a first and a second position, in the first position the leading end is arranged relative to the handle coupling such that the handle axis is offset relative to the longitudinal axis, and in the second position the leading end is arranged relative to the handle coupling such that the handle axis is parallel to the longitudinal axis.