Integral Heart Valve Clamp Arms for Stable Clamping
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Solution Overview
Problem
Current heart valve clamps have separately arranged clamp arms, leading to unstable connections and a risk of disconnection during mitral regurgitation treatment.
Innovation Solution
A heart valve clamp design featuring a fixed arm mechanism with integrally formed arms and a clamping arm mechanism, both driven by separate assemblies, ensuring a stable connection and reduced risk of disconnection, allowing for effective clamping of valve leaflets under ultrasound and angiography navigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If clamp arms are separately arranged and assembled in the middle part, then the device complexity is reduced and ease of manufacture is improved, but the connection stability deteriorates and there is a risk of partial disconnection
Solution Approach 1:
The patent merges the separately arranged clamp arms into an integral structure where the first and second clamp arms are formed as a single piece. This eliminates the middle part assembly connection, ensuring that the clamp arms cannot disconnect during operation while maintaining ease of manufacture through integrated design.
2Ease of manufacture
If multiple clamp arms are separately assembled, then the device can be manufactured more easily, but the integrity and structural strength are weakened
Solution Approach 1:
The clamp arms are merged into a single integral structure that cannot be disassembled, ensuring high structural integrity and strength throughout the device while maintaining manufacturing simplicity through the unified design.
Solution Approach 2:
While the clamp arms themselves are integral, the driving mechanism is segmented into a first driving assembly for the fixed arm and a second driving assembly for the clamping arm, allowing independent control of each arm while maintaining overall structural integrity.
Data Source
AI summary
The application relates to a heart valve clamp, comprises a fixed arm mechanism, a clamping arm mechanism, and a driving mechanism. The fixed arm mechanism comprises a fixed arm body and at least two fixed arms, extending outward from the fixed arm body, and integrally formed with the fixed arm body. The clamping arm mechanism comprises a clamping arm body connected to a bottom of the fixed arm body, and at least two clamping arms extending outward from the clamping arm bodies and integrally formed with the clamping arm body; and the driving mechanism comprises a second driving assembly that drives the fixed arm and the clamping arm to open or close. The fixed arm mechanism and the clamping arm mechanism of the entire heart valve clamp respectively forms an integral form, which can avoid the risk of the fixed arm or the clamping arm being disengaged, the stability of the whole structure is better. The fixed arm and the clamping arm clamp the valve leaflets under three-dimensional ultrasound and angiography navigation, so that the regurgitation area is reduced, which is capable of treating mitral or tricuspid regurgitation while keeping heat beating.