Adjustable Osteotomy Protector Lip Design
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Solution Overview
Problem
Existing osteotomy protectors for long bones during arthroplasty procedures are inadequate in accommodating varying patient anatomies, leading to potential bone damage due to their fixed sizes, which can be either too small or too large, and complicate minimally invasive surgeries by obstructing access to the surgical site.
Innovation Solution
A size-adjustable osteotomy protector with moveable plates and a protective lip that can expand to fit various bone sizes, allowing for comprehensive protection of resected surfaces and preventing damage during surgical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed-sized round protectors are used, then protection of the resected bone surface is provided, but the protector may be too small causing bone damage or too large obstructing surgical access
Solution Approach 1:
The protector transitions from a fixed-size design to a dynamic, adjustable design where the diameter can be modified during surgery. The protector includes adjustment mechanisms that allow the surgeon to expand or contract the protective surface to precisely match the resected bone geometry, ensuring optimal protection without obstructing surgical access.
Solution Approach 2:
The protector's key parameter (diameter) is made variable rather than fixed. The device incorporates mechanisms that allow continuous adjustment of the protective surface area to match different patient anatomies and resected surface sizes, eliminating the compromise between adequate protection and surgical accessibility.
2Adaptability or versatility
If multiple fixed sizes of protectors are used, then various bone sizes can be accommodated, but the complexity of selecting and managing multiple instrument sizes increases
Solution Approach 1:
The protector is designed as a universal device that can accommodate a wide range of bone sizes through adjustment mechanisms. Rather than requiring multiple fixed-size instruments, a single protector type can be adjusted to fit different patient anatomies, simplifying instrument inventory and selection while maintaining versatility.
Solution Approach 2:
The protector incorporates dynamic adjustment capabilities that allow it to adapt its size during surgery. This eliminates the need for multiple static sizes and simplifies the surgical workflow by providing a single adjustable instrument rather than requiring the surgeon to select from multiple fixed-size options.
3Object-affected harmful factors
If a minimally invasive surgical approach is used, then patient trauma is reduced, but visibility and access to the resected surface are compromised
Solution Approach 1:
The protector provides localized protection precisely where needed on the resected bone surface while maintaining minimal interference with the surgical field. The adjustable design allows the protective surface to conform exactly to the resected area, providing adequate protection without extending into areas that would obstruct surgical visibility or access.
Data Source
AI summary
A cover for use in protecting a resected surface of a long bone for use in joint arthroplasty is provided. The cover includes a generally planar portion having opposed generally parallel first and second surfaces defining a periphery extending from the first surface and the second surface. The cover also includes a lip extending from the first surface at the periphery of the planar portion in a direction not planar with the generally planar portion.