Self-expandable interventional valve and utilization method thereof

Abstract

The invention provides a self-expandable interventional valve and a utilization method thereof. The self-expandable interventional valve comprises a valve body and a delivery system, the valve body comprises valve leaflets and a valve stent, the delivery system comprises a handle and a far-end sac, the handle and the far-end sac are connected with each other, and the valve stent and the delivery system are connectedly assembled. Before a preset time period, the valve leaflets are not completely tightened up by the far-end sac; in the preset time period, by operating of the delivery system, the valve body is completely positioned in the far-end sac and completely tightened up by the far-end sac and is planted in a completely tightened-up state to a target position of a human body, and the preset time period refers to a time period from taking of the self-expandable interventional valve out of a sterile bag to delivering of the self-expandable interventional valve to the target position of the human body. Deformation and creasing due to long-time excessive squeezing of the valve leaflets of the self-expandable interventional valve are avoided, influences on utilization functions of the valve body due to deformation are eliminated, and the self-expandable interventional valve has an important clinical significance.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a self-expanding interventional valve and a method for using the same. Background technique [0002] With the continuous development of interventional valve technology, the use of more convenient pre-installed interventional valves is an inevitable trend in the development of interventional valves. Compared with the current conventional interventional valve products, pre-installed interventional valves are completed when the product is manufactured. The assembly of the delivery system can be directly used clinically, and it does not need to assemble the valve and the delivery system at the operating table like conventional interventional valves. Therefore, in addition to being convenient to use, the prefabricated interventional valve also has the advantage of more controllable assembly quality of the valve and delivery system. [0003] However, pre-installed ...

AI Technical Summary

Problems solved by technology

During the assembly process of the valve and the delivery system, excessive compression of the valve part, although it helps to reduce the delivery diameter or pre-installed diameter, will also cause excessive extrusion of the valve leaflets, resulting in the loss of the preservation solution that helps achieve dry storage. extrusion, thereby reducing the protective effect on the valve leaflets

The valve leaflets without sufficient protection are prone to irreversible deformation or degeneration, and the function is damaged, which will affect the function of the entire interventional valve and result in product failure.

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