3D Bone Removal Overlay for Limited-View Joint Surgery
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Solution Overview
Problem
Current minimally invasive surgical techniques for joint pathologies, such as joint arthroscopy, face challenges in accurately determining the amount and geometry of bone removal due to limited and distorted endoscopic views, making it difficult for surgeons to precisely remove bone according to desired geometry.
Innovation Solution
A system and method that overlays a pre-operatively generated three-dimensional model of bony anatomy onto a two-dimensional intra-operative image, allowing surgeons to visualize planned bone removal beyond the imaging plane, with adjustable transparency and tool representation, to guide precise bone resection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If endoscopic imaging is used to view the debridement area, then minimally invasive surgery can be performed, but the field of view is limited and distorted making it difficult to determine the exact amount of bone to remove
Solution Approach 1:
The patent overlays a three-dimensional pre-operative model onto the two-dimensional endoscopic image, adding depth and spatial context to the limited endoscopic view. This dimensional enhancement allows surgeons to visualize the entire pathology and planned bone removal in 3D space while maintaining the benefits of minimally invasive endoscopic access
Solution Approach 2:
The patent creates a virtual copy of the pre-operative three-dimensional model and superimposes it onto the live endoscopic image. This copied model includes the planned bone removal geometry and serves as a visual guide, allowing surgeons to see the intended outcome overlaid on the actual surgical field without requiring direct visualization of the entire pathology
2Productivity
If a two-dimensional endoscopic image is used to guide bone removal, then the procedure can be performed minimally invasively, but the surgeon cannot view the entire pathology and determine the desired geometry
Solution Approach 1:
By projecting a three-dimensional model onto the two-dimensional endoscopic image plane, the system provides depth perception and volumetric information that was absent in traditional 2D endoscopy. The overlay shows the planned bone removal as a semi-transparent 3D structure, enabling precise geometric guidance while maintaining minimally invasive access and surgical efficiency
Solution Approach 2:
The system allows dynamic adjustment of overlay transparency and visualization parameters during surgery. Surgeons can modify the opacity of the three-dimensional model overlay to optimize visibility of both the underlying endoscopic image and the planned bone removal geometry, thereby achieving precise measurement guidance adaptable to different surgical stages
Data Source
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AI summary
A computing system for guiding bone removal for a surgical procedure includes one or more programs that include instructions for receiving a two-dimensional image of bony anatomy; determining an alignment of a pre-generated three-dimensional model of the bony anatomy to the bony anatomy in the two-dimensional image; and generating and displaying a visualization comprising: a first portion comprising an overlay of at least a portion of the three-dimensional model on the two-dimensional image, wherein the overlay of at least a portion of the three-dimensional model is displayed according to the determined alignment, and a second portion comprising a representation of at least a portion of the three-dimensional model and a representation of the determined alignment of the three-dimensional model of the bony anatomy to the bony anatomy in the two-dimensional image.