Adjustable Patient-Specific Surgical Guides for Intraoperative Alignment
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Solution Overview
Problem
Conventional patient-specific surgical guides do not allow for intraoperative adjustments when unforeseen circumstances arise during surgery, leading to potential misalignment of prostheses and patient discomfort.
Innovation Solution
A system comprising a patient-specific locating component and adjustable components that enable surgeons to make intraoperative adjustments while maintaining guidance, allowing for the adjustment of guide surfaces relative to the locating component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional patient-specific surgical guides are used, then manufacturing precision and alignment accuracy are improved, but adaptability to unforeseen intraoperative circumstances deteriorates
Solution Approach 1:
The surgical guide incorporates adjustable components that allow dynamic modification of guide surface positions and orientations during the procedure. The guide includes a base component with patient-specific surfaces and adjustable components with guide surfaces that can be repositioned relative to the base, enabling real-time adaptation to intraoperative findings while maintaining precision through controlled adjustment mechanisms.
2Manufacturing precision
If fixed patient-specific surgical guides are used, then manufacturing precision is improved, but ease of operation during unforeseen circumstances deteriorates
Solution Approach 1:
The surgical guide is divided into distinct components: a base component with patient-specific surfaces and separate adjustable components with guide surfaces. These segmented components can be independently positioned and adjusted relative to each other, allowing the surgeon to maintain precise bone resection guidance while easily adapting to changing surgical conditions through component repositioning.
3Device complexity
If patient-specific surgical guides without adjustment capability are used, then device complexity is reduced, but reliability of prosthesis alignment deteriorates
Solution Approach 1:
The guide system maintains relative simplicity while enhancing reliability through controlled dynamic adjustment. The adjustable components incorporate guide surfaces that can be repositioned relative to the base component, providing reliable prosthesis alignment even when intraoperative conditions differ from preoperative plans, without requiring overly complex mechanisms.
Data Source
AI summary
A system can include a first component having a first body and a second component having a second body. The first body can have a first side and an opposed second side. The first side can have at least one patient-specific surface configured to engage at least one bone in a predetermined manner. The first body can also have a coupling element. The second body can be sized and configured to engage the coupling element to couple the second component to the first component. The second body can include at least one guide surface, and a position of the at least one guide surface can be configured to be adjusted relative to the first component intraoperatively. Methods of using such systems also are disclosed.