Combination Bone Preparation Device for Glenoid Implantation
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Solution Overview
Problem
There is a need for a simplified method of implanting a glenoid component in shoulder arthroplasty and a reduction in the instrumentation required to properly prepare the scapula for the glenoid component.
Innovation Solution
The development of an instrumentation kit that includes a combination device with a boring section, a drive section, a reaming section, and drill guides, which allows for simultaneous formation of a bore and reaming of the glenoid to receive a glenoid component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate instruments are used to prepare the glenoid (drilling, reaming, boring), then each function can be performed with a specialized tool, but the number of instruments required increases and the surgical procedure becomes more complex
Solution Approach 1:
The patent combines multiple separate surgical instruments (drill, reamer, borer) into a single combination device that can perform all these functions through different operational modes or attachments, thereby reducing the total number of instruments needed while maintaining the functional precision of each specialized tool
Solution Approach 2:
The combination device is designed with multi-functionality, allowing it to perform drilling, reaming, and boring operations on the glenoid using a single instrument system, which simplifies the surgical procedure and reduces instrument complexity while preserving the reliability of each function
2Manufacturing precision
If multiple separate instruments and steps are used to prepare the glenoid cavity, then each operation can be optimized independently, but the surgical time and procedure complexity increase
Solution Approach 1:
By merging drilling, reaming, and boring functions into a single combination device, the patent enables these operations to be performed in a more integrated and efficient manner, reducing the time required for glenoid preparation while maintaining the precision needed for proper component placement
Solution Approach 2:
The combination device allows for continuous preparation of the glenoid cavity by eliminating the need to remove and change between multiple separate instruments, thereby reducing non-productive time and maintaining continuous useful action throughout the preparation process
Data Source
AI summary
A combination device for use in preparing a bone to receive a prosthetic component includes a body section. A drill section configured to bore a hole in the bone and extending away from the body portion defines a first longitudinal axis and a first maximum radius perpendicular to the longitudinal axis. A plurality of reaming fins extend downwardly from the body portion and outwardly from the drill section. A first drill guide extends through the body at a location between two of the plurality of reaming fins, the first drill guide defines a second longitudinal axis parallel to the first longitudinal axis and a second maximum radius perpendicular to the second longitudinal axis. The first longitudinal axis is spaced apart from the second longitudinal axis by a distance which is greater than the first maximum radius plus the second maximum radius.