Tissue Fixation System Single Portal Bone Stability
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Solution Overview
Problem
Current bone fracture fixation techniques are complex, time-consuming, and prone to complications such as screw stripping or loss of grip, especially when accessing the bone from multiple incisions.
Innovation Solution
A tissue fixation system comprising an elongate fastening member and a fastener that can move from a first orientation to a second orientation, with a groove and channel configuration to secure the fastener in place, allowing for flexible or rigid fixation of tissue through a single small skin portal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional bone screws are inserted through multiple incisions, then fixation can be achieved, but the procedure becomes complex and time-consuming
Solution Approach 1:
The patent combines multiple surgical steps (drilling, tapping, screw insertion) into a single integrated instrument that performs all functions through one incision. The instrument integrates a drill bit, tap, and screw driver mechanism, eliminating the need for separate incisions and steps, thus reducing procedural complexity while maintaining fixation reliability
Solution Approach 2:
The surgical instrument is designed with multi-functionality, serving as both a drilling device, a tapping device, and a screw insertion tool. This universal instrument can perform multiple operations through a single incision, reducing the number of required incisions and simplifying the overall surgical procedure while ensuring reliable bone fixation
2Manufacturing precision
If multiple incisions are made to access the bone, then proper screw placement is possible, but the surgical time increases
Solution Approach 1:
The instrument performs preliminary actions by integrating the drilling and tapping steps before screw insertion, all through a single incision. The drill bit creates the hole, the tap creates threads, and then the screw is inserted without removing the instrument, thereby reducing surgical time while maintaining precise screw placement through the guided instrument structure
3Reliability
If screws are inserted through multiple incisions, then fixation can be achieved, but the risk of screw stripping or loss of grip increases
Solution Approach 1:
By combining drilling, tapping, and screw insertion into a single integrated instrument operation, the patent ensures that the screw is always inserted into freshly created threads without interruption. This continuous process eliminates the risk of screw stripping that occurs when screws are inserted into pre-existing holes that may have damaged or compromised threads from previous drilling operations
4Stability of the object's composition
If traditional fixation methods are used, then stable bone fixation is achieved, but the surgical procedure is invasive and complex
Solution Approach 1:
The patent segments the surgical approach by consolidating all necessary functions into a single instrument that operates through one incision. This segmentation of the surgical pathway eliminates the need for multiple incisions and complex positioning, making the procedure easier to perform while maintaining stable bone fixation through the integrated drilling, tapping, and screw insertion mechanism
Data Source
AI summary
A tissue fixation system is provided for dynamic and rigid fixation of tissue. A fastener connected with an elongate fastening member, such as a cable, wire, suture, rod, or tube, is moved through a passage between opposite sides of tissue. A medical device is used to secure the fastener to the elongate fastening member. The medical device includes a tensioning mechanism for tensioning the elongate fastening member. As crimping mechanism is used to secure the fastener to the elongated member, where a cutting mechanism cut the excess portion of the elongated member.