Non-threaded Bone Anchor Transverse Compression
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Solution Overview
Problem
Current orthopedic and dental implant systems using threaded anchors often fail to achieve consistent bone compression or distraction, as they tend to stabilize rather than compress bone structures and can back out over time.
Innovation Solution
A system employing non-threaded anchors with a trajectory into bone structures and a non-threaded head that interacts with implant apertures to cause transverse movement, enabling compression or distraction of bone structures, utilizing biocompatible materials like Titanium Alloys and shape memory alloys.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If threaded anchors are used to stabilize boney structures, then the boney structures are stabilized, but the anchors tend to back out over time and do not achieve consistent compression
Solution Approach 1:
The patent removes the threaded portion from the anchor design, extracting the element that causes backout. The anchor becomes a smooth, non-threaded implant that inserts through the bone without threading engagement, eliminating the mechanism for backout while maintaining stability through the transverse movement mechanism.
Solution Approach 2:
Instead of using threads to create anchoring (conventional approach), the patent inverts the approach by using a smooth, non-threaded anchor that relies on a transverse movement mechanism and interference fit within the aperture to achieve stability and compression.
2Manufacturing precision
If plates with dedicated screw channels are used, then the screw trajectory is controlled, but the boney structures are stabilized rather than compressed together
Solution Approach 1:
The patent introduces dynamic transverse movement capability to the anchor system. The non-threaded anchor head can move transversely within the aperture feature, converting the insertion force into both trajectory control and compression force, thereby achieving both precision and compression simultaneously.
Solution Approach 2:
The non-threaded anchor design serves multiple functions: it provides trajectory control through the aperture feature, achieves bone compression through transverse movement, and eliminates backout. This multi-functional design replaces the separate functions of threaded anchors and compression mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution effectively achieves consistent bone compression or distraction, reducing the likelihood of anchor backout and improving healing outcomes by using non-threaded anchors with a transverse movement mechanism within the implant system.
Implementation Method 1
a non-threaded head of the anchor interacts with the aperture features in an implant to cause the head of the anchor to move transversely which can cause compression or distraction of boney structures coupled to the anchors
Data Source
AI summary
Disclosed are system and methods that use at least one non-threaded anchor and an implant with at least one aperture to join boney structures, where the interaction of the head of the anchor with the implant aperture causes the anchor to move transversely with respect to an initial trajectory. This movement causes compression or distraction of the boney structures which are coupled to the anchors.