Valve Release Claw Assembly for Stable Heart Valve Deployment
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Solution Overview
Problem
Heart valves implanted in the human body tend to displace or bounce during deployment, affecting treatment efficacy and potentially causing damage due to instability.
Innovation Solution
A valve delivery device with a retraction assembly and wire-locking claw assembly, featuring fixing claws and sleeving parts that control the release and stability of the valve, utilizing clamping and locking mechanisms to stabilize the valve during deployment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the valve is released from the implantation device, then the valve can be deployed to achieve support and expansion functions, but the valve is prone to bouncing and displacement, affecting treatment effect and potentially causing damage
Solution Approach 1:
The patent applies preliminary action by designing a releasing mechanism that prepares the valve for controlled deployment. The releasing mechanism includes a releasing wire that can be pulled to trigger the valve's expansion, ensuring the valve is ready for stable deployment rather than uncontrolled bouncing. This preliminary preparation allows the valve to transition smoothly from the implantation device to its functional state.
Solution Approach 2:
The patent introduces an intermediary releasing mechanism between the implantation device and the valve. This releasing mechanism acts as a mediator that controls the valve's release process. The releasing wire and associated components provide a controlled interface that manages the transition, preventing direct uncontrolled movement and reducing bouncing during deployment.
2Stability of the object's composition
If the valve is firmly fixed during implantation, then the valve remains stable, but the valve cannot be released for deployment
Solution Approach 1:
The patent applies dynamics by designing a fixation mechanism that can transition between fixed and released states. The fixing mechanism includes a fixing wire that can be tightened to secure the valve during implantation, then loosened or released to allow controlled deployment. This dynamic adjustment allows the system to switch between stable fixation and ease of release as needed.
Solution Approach 2:
The patent segments the fixation system into separate controllable components. The fixing wire is divided into segments that can be independently controlled, allowing selective release of the valve while maintaining stability during implantation. This segmentation enables precise control over when and how the valve is released, balancing stability with ease of operation.
3Device complexity
If the valve delivery system uses simple release mechanism, then the device complexity is reduced, but the valve stability during release is compromised
Solution Approach 1:
The patent merges multiple functions into the releasing mechanism. The releasing wire serves multiple purposes: it acts as a structural support, a control element, and a stability mechanism during release. By combining these functions into a single integrated component, the system achieves valve stability during release without requiring multiple separate complex mechanisms, thus managing device complexity while maintaining stability.
Data Source
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AI summary
The present disclosure relates to a valve delivery device. The valve delivery device includes a valve provided with a fixing part and a valve delivery system. The valve delivery system includes a retraction assembly and a wire-locking claw assembly. The retraction assembly includes a fixing claw. One end of the fixing claw is provided with a first clamping part and a second clamping part. A mounting groove is formed between the first clamping part and the second clamping part. The fixing part is located in the mounting groove. The first clamping part and the second clamping part are configured to clamp the fixing part. The wire-locking claw assembly includes a wire-locking claw and a sleeving part, and is sleeved on the fixing claw, thereby realizing control over the valve release and improving the stability of the valve during release.