Adjustable Annulus Contraction Anchors for Complete Valve Closure
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Solution Overview
Problem
Existing valve annulus contraction surgical systems struggle to completely cover the valve orifice due to the use of preset-shaped formed annulus bodies, which fail to accommodate significant deformations, leading to incomplete valve closure and impaired therapeutic effects.
Innovation Solution
A valve annulus contraction surgical system with adjustable annulus contracting force, utilizing anchors implanted at multiple positions and adjustable locking sutures to tailor the contraction force based on the valve annulus shape, ensuring complete valve orifice coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a preset-shaped formed annulus body is used to contract the valve annulus, then the surgical procedure is simple, but the valve orifice cannot be completely covered when the valve annulus is significantly deformed
Solution Approach 1:
The formed annulus body is divided into multiple independent segments or blocks that can be adjusted relative to each other. Each segment can be independently positioned to accommodate the deformed valve annulus shape, while still maintaining ease of surgical implantation through a standardized delivery system.
Solution Approach 2:
The formed annulus body incorporates adjustable components such as movable blocks, telescopic structures, or reconfigurable segments that allow the overall shape and dimensions to be modified after implantation. This enables the device to adapt to significant deformations of the valve annulus while maintaining complete valve orifice coverage.
2Reliability
If multiple anchors with adjustable locking sutures are used to contract the valve annulus, then complete valve orifice coverage is achieved, but the device complexity increases
Solution Approach 1:
Multiple anchors, locking sutures, and adjustment mechanisms are integrated into a single modular assembly or delivery system. The anchors are pre-positioned and interconnected, allowing them to be implanted and adjusted as a coordinated unit, thereby reducing the operational complexity despite the increased number of components.
Solution Approach 2:
The anchors are designed with multi-functional capabilities, serving both as fixation points and as part of the contraction mechanism. The locking sutures perform multiple functions including securing anchors, enabling adjustment, and providing tension distribution, thereby reducing the need for separate dedicated components for each function.
Data Source
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AI summary
The present application provides a valve annulus contraction surgical system with an adjustable annulus contracting force at a single point, which relates to the technical field of medical devices. The surgical system comprises a plurality of anchors, an implantation device, a plurality of groups of locking sutures, and a suture locking device. A suture locking tab is arranged on at least one of two sides of each of the anchors; the implantation device is configured to implant the anchors into a valve annulus; each group of locking sutures comprises a first locking suture and a second locking suture each configured to be connected to the suture locking tab; and the suture locking device is configured to lock and fix the other end of the first locking suture and the other end of the second locking suture. The present application differs from an annulus contracting method using a traditional formed annulus in that the anchors are implanted at several predetermined positions on the valve annulus, a locking suture is arranged on one side or either side of each of the anchors, the locking sutures are used to lock the anchors in pairs, and since the level of locking of every two anchors may be different, the level of locking of two anchors may be arbitrarily adjusted according to the shape of the valve annulus in such a way that a valve orifice can be completely covered by a valve after the adjustment, thereby ensuring a therapeutic effect.