Radiolucent Surgical Guide for Multi-Implant Placement
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Solution Overview
Problem
Current surgical techniques face challenges in achieving optimal placement of multiple implants in bone, particularly in avoiding interference between implants and ensuring accurate positioning without breaching the bone or contacting soft tissue, especially in complex joints like the sacroiliac joint.
Innovation Solution
A surgical guide assembly featuring a radiolucent guide tool with reference and target securement seats at graduated distances, equipped with radiopaque markers and visual/tactile indicators, allows for precise alignment and spacing of implants under fluoroscopy, facilitating the use of drill guides and cannulated tools for accurate implant placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple implants are placed in bone using conventional techniques, then the quantity of implants increases, but the precision of implant placement deteriorates due to difficulty in avoiding interference and ensuring accurate positioning
Solution Approach 1:
The guide tool is segmented into multiple securement seats (reference securement seat and multiple target path securement seats) arranged at predetermined spaced intervals. Each seat can independently receive and secure a separate implant, allowing multiple implants to be placed simultaneously with precise spacing and positioning, thereby resolving the contradiction between increasing implant quantity and maintaining placement precision
Solution Approach 2:
The guide tool acts as an intermediary device that pre-establishes the correct spatial relationships and trajectories for multiple implants. By serving as a mediator between the surgeon and the bone, it ensures accurate placement of multiple implants without requiring complex manual positioning for each individual implant, thus maintaining precision while increasing the number of implants
2Device complexity
If conventional surgical techniques are used for implant placement, then the complexity of the surgical procedure increases due to need for frequent fluoroscopy and manual positioning, but the ease of operation deteriorates
Solution Approach 1:
The guide tool is pre-configured with multiple securement seats at predetermined positions and orientations before the surgical procedure begins. This preliminary preparation eliminates the need for frequent fluoroscopy and manual positioning adjustments during surgery, reducing procedural complexity while significantly improving ease of operation as the surgeon can simply insert implants into the pre-established seats
Data Source
AI summary
A surgical guide assembly for selecting a target site for insertion of a fixation implant, the surgical guide used in conjunction with fluoroscopy or other x-ray-based imaging for selecting a target site into bone based upon a rendered radiographic image of the bone. The guide includes a planar radiolucent guide tool with radiopaque markers and seats for accommodating securement components that can be engaged in apertures within securement seats of the radiolucent guide tool and contacted or positioned adjacent target bone for establishing a path to a bone target to guide the placement of an implant relative to a reference point, such as a first implant. In the guide tool may include visual indicia corresponding with one or more of the securement seats.