Combination Reamer Drill Handle for Glenoid Preparation
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Solution Overview
Problem
There is a need for a simplified method to implant a glenoid component in shoulder arthroplasty that reduces the instrumentation required to properly prepare the scapula, as existing methods are complex and cumbersome.
Innovation Solution
A combination reamer/drill device with a proximal portion configured to couple with a torque-providing device and a distal portion that can pivot between aligned and non-aligned positions, allowing for simultaneous reaming and drilling to prepare the glenoid for a glenoid component, including a guide bore and reaming fins to form a cavity for the component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional separate reaming and drilling instruments are used, then the glenoid can be prepared for component implantation, but the instrumentation required is complex and cumbersome
Solution Approach 1:
The patent combines separate reaming and drilling instruments into a single combination driver/anti-rotation handle device. The driver portion receives both the reaming instrument and drilling instrument, allowing both functions to be performed with one integrated device rather than multiple separate instruments, thereby simplifying the surgical procedure and reducing instrumentation complexity
Solution Approach 2:
The combination driver/anti-rotation handle is designed to perform multiple functions: it serves as both a driver for advancing the reaming instrument and as a handle for the drilling instrument. This multi-functional design eliminates the need for separate specialized instruments for each function, reducing the overall number of instruments required in the procedure
2Productivity
If multiple separate instruments are used for reaming and drilling, then the functions can be performed, but the procedure efficiency is reduced due to instrument changes and positioning
Solution Approach 1:
By merging the driver and anti-rotation handle functions into a single device, the patent eliminates the time required to change between separate instruments. The reaming and drilling functions are performed sequentially using the same integrated device, reducing procedure time and improving efficiency
Solution Approach 2:
The combination driver/anti-rotation handle is pre-configured to accept both reaming and drilling instruments, allowing the surgeon to prepare for both functions in advance without needing to switch instruments during the procedure. This preliminary configuration reduces time loss during the actual surgical steps
Data Source
AI summary
A method of preparing a shoulder to receive a glenoid component includes accessing a glenoid of a shoulder, positioning a distal portion and a proximal portion of a combination power extension/anti-rotation device on a guide wire positioned in the shoulder and reaming a hole in the shoulder using the combination power extension/anti-rotation device with the distal portion and the proximal portion positioned on the guide wire. The proximal portion is removed from the guide wire and pivoted with respect to the distal portion while the distal portion is still positioned on the guide wire. The picoted proximal portion is used to rotate an instrument to a first position and a bore is formed in the glenoid through the instrument with the instrument at the first position.