Two-part surgical guide for osteotomy precision
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Solution Overview
Problem
Current patient-specific surgical guides for osteotomies are bulky, leading to larger incisions, increased complexity, and reduced precision due to their size and the need for extensive fluoroscopy, which complicates the surgical procedure and prolongs healing time.
Innovation Solution
A two-part surgical guide system comprising a first part with contact surfaces conforming to the bone for stability and guiding reference pins, and a second part with apertures for receiving these pins to restrict movement, allowing for precise placement and reduced bulk, enabling smaller incisions and improved precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current patient-specific surgical guides are used, then surgical guidance function is provided, but the guides are bulky requiring larger incisions and increasing device complexity
Solution Approach 1:
The surgical guide is divided into two separate parts: a registration guide with contact surfaces for positioning, and a functional guide with cutting and drilling elements. This segmentation allows each component to be smaller and less bulky while maintaining the overall guidance function, thereby reducing incision size and device complexity without compromising surgical accuracy
Solution Approach 2:
The registration function is extracted into a separate registration guide that remains on the bone surface, while the functional elements (cutting guides, drill guides) are placed on a separate functional guide. This extraction eliminates the need for a single bulky guide, reducing device complexity and allowing smaller incisions while preserving surgical guidance reliability
2Reliability
If current patient-specific surgical guides are used, then surgical guidance is provided, but larger incisions are required and tissue damage increases
Solution Approach 1:
By segmenting the guide into two parts, the physical size of each component is reduced, allowing smaller incisions to be made for insertion and placement. This reduces soft tissue disruption and trauma while maintaining the accuracy of surgical guidance through the coordinated function of both parts
Solution Approach 2:
The registration surfaces and contact elements are extracted into a separate registration guide that can be positioned with minimal tissue disruption. The functional guide with cutting elements is separately positioned, allowing both components to be smaller and require smaller incisions, thereby reducing overall tissue damage while preserving guidance accuracy
3Adaptability or versatility
If current patient-specific surgical guides are used, then all functional elements are included, but the surgical site becomes crowded and precision is reduced
Solution Approach 1:
Functional elements are segmented and distributed between two separate guides rather than being integrated into a single bulky guide. The registration guide handles positioning while the functional guide handles cutting and drilling guidance. This segmentation reduces crowding at the surgical site, improving precision while maintaining versatility through the combined functionality of both parts
Solution Approach 2:
Functional elements such as cutting guides and drill guides are extracted from the registration guide structure and placed on a separate functional guide. This extraction reduces the bulk and footprint of each individual guide, preventing surgical site crowding and improving manufacturing and surgical precision while preserving all necessary functional elements
Data Source
AI summary
Certain aspects relate to a two-part surgical guide system for use in surgical procedures such as osteotomies. Certain aspects provide a first part including a contact surface configured to conform to a portion of an anatomy of the patient to substantially restrict movement of the first part with respect to the anatomy of the patient. The first part further includes guiding elements configured to receive reference pins and guide placement of the reference pins in the anatomy of the patient. Certain aspects further provide a second part, separate from the first part. The second part includes apertures. Each aperture is configured to receive a reference pin and substantially restrict movement of the second part with respect to the anatomy of the patient. The second part further includes a functional element for guiding a procedure on the anatomy of the patient.