Osteotome Guide and Blade for Bone Ingrowth Removal
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Solution Overview
Problem
Current surgical tools lack an efficient method for removing bone ingrowth from orthopedic implants during revision surgery, which can complicate the procedure and lead to difficulties in implant extraction.
Innovation Solution
A surgical osteotome with a shaft assembly featuring a guide and a blade with a distally facing cutting edge, designed to fit within a complementary groove on the orthopedic implant, allowing for precise removal of bone ingrowth. The osteotome includes a handle with a striking surface and an internal cavity for collecting removed bone material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional surgical tools are used to remove bone ingrowth, then the procedure can be performed, but the removal process is inefficient and difficult
Solution Approach 1:
The osteotome is divided into distinct functional segments: a guide portion for navigation and positioning, a blade portion for cutting, and a handle for operation. This segmentation allows each component to be optimized for its specific function, enabling efficient and controlled bone ingrowth removal while reducing operational difficulty.
Solution Approach 2:
The guide portion acts as an intermediary element that interfaces between the operator's manual control and the cutting blade. It provides a complementary fit within the implant groove, mediating the interaction to ensure precise positioning and controlled engagement with the bone ingrowth, thereby facilitating easier and more efficient removal.
2Manufacturing precision
If a guided cutting mechanism is introduced, then precision of bone ingrowth removal is improved, but device complexity increases
Solution Approach 1:
The guide portion and blade portion are merged into a single integrated osteotome body. The guide portion includes an integrated through-hole that receives the blade, creating a unified structure that provides guided cutting precision without requiring separate, complex components. This merging reduces overall device complexity while maintaining precision.
Solution Approach 2:
The guide portion serves multiple functions: it provides structural support, guides the blade during cutting, interfaces with the implant groove for positioning, and contains the through-hole for blade insertion. This multi-functionality reduces the need for additional separate components, thereby reducing device complexity while achieving precise bone ingrowth removal.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and controlled removal of bone ingrowth from orthopedic implants, facilitating the revision surgery process by providing a guided and effective cutting mechanism that minimizes complications during implant extraction.
Implementation Method 1
a blade adjacent the guide and extending in the longitudinal direction of the shaft assembly. The blade includes a distally facing cutting edge
Data Source
AI summary
An osteotome having a shaft assembly that includes a guide extending in a longitudinal direction of the shaft assembly, and a blade adjacent the guide and extending in the longitudinal direction of the shaft assembly.