Customized Joint Implant Template Positioning
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Solution Overview
Problem
Conventional implant systems are poorly customized to patients, leading to unnecessary damage to undamaged cartilage and improper alignment, which reduces the effectiveness of implant surgery in repairing anatomical joints.
Innovation Solution
A system and method that utilize medical imaging to obtain and analyze image stacks, generate 3D models, select customized implant templates, and receive approvals to determine the final shape and dimensions of implants tailored to individual patient anatomy, minimizing tissue removal and ensuring proper alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If standard-sized implants are used in conventional systems, then manufacturing and supply are simplified, but the implants are poorly customized to patients leading to unnecessary damage to undamaged cartilage and improper alignment
Solution Approach 1:
The system changes the parameters of implant size, shape, and position by obtaining medical image stacks, generating 3D models, and allowing manipulation of implant templates to match the patient's specific anatomy, thereby achieving precise customization while maintaining ease of manufacture through standardized processes
Solution Approach 2:
The system performs preliminary actions by obtaining medical images, generating 3D models, and selecting and positioning implant templates before the actual surgery, allowing the final implant shape and dimensions to be determined in advance based on the patient's specific needs
2Ease of operation
If standard implants with standard guides are used, then surgical procedure is simplified, but alignment of the implant top surface to the cartilage surface is improper reducing treatment effectiveness
Solution Approach 1:
The system changes the position and orientation parameters of the implant by allowing manipulation of the implant template in the 3D model to achieve optimal alignment with the cartilage surface, ensuring the implant top surface is properly aligned while maintaining surgical simplicity through pre-planning
3Device complexity
If standard-sized implants are used, then device complexity is reduced, but unnecessary large areas of undamaged cartilage must be removed
Solution Approach 1:
The system applies local quality by determining the final shape and dimensions of the customized implant based on the specific damage area in the patient's anatomy, allowing the implant to precisely match only the damaged region rather than requiring removal of large areas of undamaged cartilage
Data Source
AI summary
A system for customizing an implant is provided. The system includes a processor configured to: i) obtain one or more medical image stacks of a joint; ii) obtain a three-dimensional image representation of the joint based on at least one of said medical image stacks; iii) determine damage to the joint by analyzing said medical image stacks; iv) select an implant template from a predefined set of implant templates having predetermined types and sizes; v) generate a 3D model, in which the marked damage is visualized together with the selected implant template in a proposed position; vi) display the 3D model; vii) receive an approval for said selected implant template in said proposed position; and viii) determine the final shape and dimensions of a customized implant based on said selected implant template and said proposed position.