Modular Orthopedic Joint Reamer Assembly for Incremental Sizing
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Solution Overview
Problem
Existing reaming technologies for orthopedic joints, such as hip replacements, are inefficient and require multiple reamers of increasing diameters to be sequentially used, leading to increased surgical time and complexity.
Innovation Solution
A reamer assembly comprising a base and interchangeable reaming members of incrementally increasing diameters, allowing for efficient and continuous reaming without the need for repeated attachment and detachment during the surgical procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple reamers of increasing diameters are sequentially used, then the reamed cavity can reach the planned diameter, but the surgical time and procedural complexity increase
Solution Approach 1:
The patent combines multiple reaming functions into a single reamer assembly by integrating multiple reaming members with incrementally increasing diameters onto one base. This allows the surgeon to perform sequential reaming operations without removing and replacing the entire reamer, thereby reducing surgical time while maintaining the ability to achieve precise incremental diameter increases.
Solution Approach 2:
The reamer base is designed as a universal platform that can accommodate multiple reaming members of different diameters. This multi-functional design enables a single reamer assembly to perform the work of multiple separate reamers, eliminating the need for repeated attachment and detachment while maintaining precision across different diameter stages.
2Manufacturing precision
If multiple reamers of increasing diameters are sequentially used, then the reamed cavity can reach the planned diameter, but the procedural complexity increases
Solution Approach 1:
The patent combines multiple reaming functions into a single reamer assembly by integrating multiple reaming members with incrementally increasing diameters onto one base. This allows the surgeon to perform sequential reaming operations without removing and replacing the entire reamer, thereby reducing surgical time while maintaining the ability to achieve precise incremental diameter increases.
Solution Approach 2:
The reamer base is designed as a universal platform that can accommodate multiple reaming members of different diameters. This multi-functional design enables a single reamer assembly to perform the work of multiple separate reamers, eliminating the need for repeated attachment and detachment while maintaining precision across different diameter stages.
3Productivity
If a single reamer assembly with interchangeable reaming members is used, then surgical time and procedural efficiency improve, but the device complexity increases
Solution Approach 1:
The reamer assembly is segmented into a base component and multiple interchangeable reaming members. This segmentation allows the complex functionality to be divided into manageable parts, where the base provides the universal mounting interface and each reaming member provides a specific diameter function. The segmentation enables quick interchangeability while keeping individual components relatively simple.
Solution Approach 2:
The reaming members are designed to be nested or stacked on the base in an organized manner, with each member fitting into a designated position. This nesting arrangement allows multiple reaming members to be carried on the single reamer assembly in a compact and systematic way, reducing the need for multiple separate instruments while maintaining ease of selection and interchangeability.
Data Source
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AI summary
A system for reaming a bone comprising: a base comprising a connector adapted to couple the base to a driver and a support surface; a first reaming member comprising: a first seating surface shaped to seat the first reaming member over the support surface, a first reaming surface adapted to ream a bone to a first diameter, and a first attachment mechanism attaching the first reaming member to the base; a second reaming member comprising: a second seating surface shaped to seat the second reaming member over the support surface, a second reaming surface adapted to ream a bone to a second diameter, and a second attachment mechanism attaching the second reaming member to the base; wherein the second diameter is larger than the first diameter.