Suprapatellar Tibial Entry Sleeve With Three-Point Anchoring
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Solution Overview
Problem
Existing tibial suprapatellar entry portal systems are difficult to assemble, require multiple components, and lack ease of use due to complicated mechanisms for anchoring and separation, limiting their effectiveness in fracture reduction procedures.
Innovation Solution
A tibial suprapatellar entry portal system with a single-piece, elliptical sleeve design that uses three anchor points for secure anchoring to the tibia or femur, allowing bi-directional insertion and reducing movement during reaming, featuring a swivel handle for ergonomic use and a locking mechanism for easy assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple components are used in the guide sleeve system, then the anchoring function can be achieved, but the assembly becomes difficult and complicated
Solution Approach 1:
The patent combines multiple separate components (guide sleeve, anchor, and internal member) into a single integrated guide sleeve assembly where the anchor is formed as an integral part of the sleeve structure. This merging eliminates the need for separate assembly steps while maintaining the anchoring function, directly resolving the contradiction between reliability and assembly complexity.
2Reliability
If a complicated mechanism is used for removing the internal guide/trocar, then the internal member can be securely retained, but the removal process becomes difficult
Solution Approach 1:
The patent extracts the internal guide/trocar as a separate removable component from the guide sleeve assembly. The internal member is designed to be easily inserted and removed independently from the sleeve, eliminating the need for complicated mechanisms while maintaining secure retention during the procedure. This extraction simplifies the removal process while preserving the anchoring reliability.
3Device complexity
If the guide sleeve can only anchor in one direction, then the structure can be simple, but the adaptability to different surgical approaches is limited
Solution Approach 1:
The patent designs the guide sleeve with a universal anchoring capability that functions effectively in multiple directions and surgical approaches. The anchor structure is configured to provide stable fixation regardless of the insertion angle or surgical approach used, making the device adaptable to different clinical scenarios while maintaining structural simplicity through standardized design elements.
Data Source
AI summary
A tibial suprapatellar entry portal system (1) comprising a sleeve (2), an anchor pin (200), and a trocar (40).