Adjustable Reamer Driver Handle for Fast Reamer-Impactor 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 (reaming and impacting), but the system becomes complicated to configure and switch between different modes of operation
Solution Approach 1:
The patent combines the reamer and impactor functions into a single integrated instrument. The main body houses both a reamer driver mechanism and an impactor mechanism, eliminating the need for separate modular components. The adjustable handle can be positioned to engage different mechanisms within the same instrument, allowing one instrument to perform both reaming and impacting functions without requiring complex modular assembly or disassembly.
Solution Approach 2:
The instrument is designed as a universal tool that can perform multiple surgical functions. The single instrument incorporates both reaming capability (through the reamer driver engaged when the handle is in the first position) and impacting capability (through the impactor engaged when the handle is in the second position), allowing it to replace multiple specialized tools while maintaining ease of use.
2Productivity
If multiple separate instruments are used for reaming and impacting, then each instrument can be optimized for its specific function, but the surgical procedure becomes less efficient due to the need to switch between instruments
Solution Approach 1:
By merging the reamer driver and impactor mechanisms into a single instrument with a shared main body and drive shaft, the patent eliminates the time required to switch between separate instruments. The surgeon can simply adjust the handle position to switch between functions, significantly reducing procedure time while maintaining the specialized capabilities of both tools.
Solution Approach 2:
The adjustable handle provides dynamic reconfiguration of the instrument during the surgical procedure. The handle can be moved between a first position to engage the reamer driver and a second position to engage the impactor, allowing the surgeon to adapt the instrument's function on-demand without leaving the surgical site or retrieving different tools.
Data Source
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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 running 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.