Pedicle Screw Guide Plate for Low-X-Ray Spinal Implantation
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Solution Overview
Problem
Current spinal surgery methods for pedicle screw implantation require repeated use of fluoroscopic X-ray to confirm screw insertion, increasing surgical time and radiation exposure.
Innovation Solution
A customizable pedicle screw implantation guide plate made via additive manufacturing, featuring a guide plate body with positioning holes and angle marks, allowing pre-planned Kirschner wire insertion for precise screw placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If repeated fluoroscopic X-ray is used to confirm screw insertion route, then surgical precision is improved, but surgical time increases and radiation exposure increases
Solution Approach 1:
The guide plate is designed with pre-drilled positioning holes and pre-marked insertion paths that are prepared before surgery. The guide plate is positioned and fixed on the patient's body prior to screw insertion, establishing the exact insertion routes in advance. This preliminary preparation eliminates the need for repeated intraoperative X-ray imaging to determine insertion paths, thereby reducing surgical time while maintaining precision.
2Measurement precision
If repeated fluoroscopic X-ray is used to confirm screw insertion route, then surgical precision is improved, but radiation exposure increases
Solution Approach 1:
The guide plate with its positioning holes and insertion paths is prepared and positioned before surgery begins. This pre-planned approach allows the surgical team to follow predetermined safe insertion routes without needing repeated intraoperative X-ray imaging, thereby significantly reducing radiation exposure to the patient and medical staff while maintaining surgical precision.
Solution Approach 2:
The guide plate creates a physical template or copy of the planned insertion paths on the patient's body surface. By transferring the pre-planned routes onto the actual surgical site through the guide plate's positioning holes and guides, the need for repeated radiographic imaging is eliminated, reducing radiation exposure while preserving measurement precision.
3Adaptability or versatility
If traditional screw implantation method is used, then flexibility in surgical approach is maintained, but surgical time increases and precision decreases
Solution Approach 1:
The guide plate is designed with adjustable components, including movable positioning holes and configurable guide structures that can be adapted to different patient anatomies and surgical requirements. The guide plate can be repositioned and reconfigured during the surgical planning phase to accommodate various insertion angles and depths, maintaining surgical flexibility while enabling efficient, precise execution through the pre-established guide structure.
Data Source
AI summary
A pedicle screw implantation guide plate, which comprises a guide body, a plurality of positioning holes, a longitudinal connection channel and an angle mark. The guide body has a first guide plate, a second guide plate and a connection part. The first guide plate is embedded in the second guide plate through the connection part. The plurality of positioning holes is disposed on the first guide plate and the second guide plate for inserting and fixing Kirschner wires. The longitudinal connection channel is disposed inside the first guide plate and the second guide plate for inserting the Kirschner wires to connect the first guide plate and the second guide plate, and to locate spinous process and transverse pedicles. The angle mark is disposed on the guide body, as a visual reference point to adjust a position of the guide body.