Cone Lock Quick Connect Mechanism for Orthopedic Cut Guides
Solution Overview
Problem
Existing connect mechanisms for cut guides in orthopedic procedures, such as pin/hole or dovetail connections, are prone to binding issues and require complex manufacturing controls, making them difficult to use and manufacture effectively.
Innovation Solution
A cone lock quick connect mechanism that uses a slidable locking member with a cone-shaped upper portion and a complementary internal cone-shaped surface, allowing for secure locking in various orientations while enabling easy installation and removal without the need for additional tools, and allowing for transverse plane rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pin/hole or dovetail connect mechanisms are used, then the cut guide can be connected to the alignment guide, but binding issues occur and manufacturing control becomes complex
Solution Approach 1:
The patent employs a cone-shaped upper portion on the locking member that fits into a complementary conical recess in the cut guide. This curved conical geometry eliminates the binding issues associated with flat pin/hole or dovetail connections while simplifying manufacturing control through self-aligning tapered surfaces.
2Reliability
If traditional connect mechanisms are used, then the cut guide can be secured to the alignment guide, but the installation and removal require additional tools and are difficult
Solution Approach 1:
The locking member is designed to be manually insertable and removable by the user without additional tools. The conical geometry provides self-aligning and self-locking properties that enable secure connection through simple push-in motion and easy release by pulling the locking member outward.
3Reliability
If fixed orientation connect mechanisms are used, then the cut guide can be securely positioned, but rotation in transverse plane is restricted
Solution Approach 1:
The locking mechanism allows the cut guide to rotate freely in the transverse plane while locked in position, providing dynamic adaptability. The conical locking surfaces maintain secure radial positioning while permitting rotational movement, enabling the surgeon to optimize the cut guide orientation during the procedure.
Data Source
AI summary
An apparatus includes a cut guide including a locking area, an alignment guide, and a connect mechanism to connect the cut guide to the alignment guide, wherein the connect mechanism includes a cone lock connect mechanism configured to engage with the cut guide locking area.