Anterior Hip Replacement Retractor Assembly
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Solution Overview
Problem
In anterior hip replacement surgery, the need for multiple assistants to manually hold retractors can be cumbersome, reducing surgeon mobility and increasing fatigue, especially in complex procedures where multiple retractors are required.
Innovation Solution
A retractor assembly with a first vertical post, accessory arms, and a femur distractor is used to secure and position retractors, allowing for improved exposure of the surgical site and reducing the need for multiple assistants, enabling the surgeon to perform the procedure alone or with minimal assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple retractors are used to expose the surgical site in complex hip replacement procedures, then the surgical site exposure is improved, but the number of assistants required increases and surgeon mobility decreases
Solution Approach 1:
The patent combines multiple separate retractors into a single integrated retractor assembly that can be held by one assistant. This assembly includes multiple retractable arms that can be independently positioned to expose different aspects of the surgical site, thereby maintaining adequate exposure while reducing the number of assistants needed from two or more to just one.
Solution Approach 2:
The retractor assembly is designed as a multi-functional device that can perform the functions of multiple separate retractors simultaneously. The assembly includes adjustable arms and retractable elements that can be configured to expose various surgical sites, making it a universal tool that replaces several specialized retractors and reduces team complexity.
2Area of stationary object
If multiple assistants manually hold retractors, then the surgical site can be exposed, but surgeon mobility is reduced and fatigue increases
Solution Approach 1:
By merging multiple retractor functions into a single assembly held by one assistant, the surgeon is freed from needing to coordinate multiple assistants and can move more freely around the patient. The integrated design allows one assistant to stabilize all retracting functions simultaneously, reducing the surgical team's complexity and improving surgeon mobility.
3Ease of operation
If multiple retractors are used to hold soft tissue, then the surgical site access is improved, but the procedure becomes more cumbersome
Solution Approach 1:
The patent integrates multiple retracting functions into a single retractor assembly with multiple adjustable arms. This allows one assistant to hold all necessary retracting forces simultaneously, maintaining good surgical site access while eliminating the need to coordinate two or more separate retractors and assistants, thereby reducing procedural cumbersome-ness.
Data Source
AI summary
Various exemplary embodiments relate to a method of performing an anterior approach hip replacement. The method may include: exposing a surgical site including the femoral neck and acetabulum using a plurality of retractors secured to the plurality of accessory arms; cutting the femoral neck to remove the femoral head; preparing the acetabulum for insertion of an acetabular cup; preparing the femur for insertion of a femoral implant by lifting the femur using a femur hook and the femur distractor; and closing the surgical site. In various alternative embodiments, the method may include using a lesser trochanteric retractor coming from a direct medial approach and a greater trochanteric retractor coming from a lateral, posterior, proximal approach.