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Connection release structure and system

A connection release and connection technology, applied in the field of connection release structures and their systems, can solve the problems of large compression of the valve annulus and left ventricular outflow tract, complicated mechanical locking, conduction block, etc.

Active Publication Date: 2020-10-27
LEPU MEDICAL TECH (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is a fully retrievable mechanical locking valve on the market. The valve frame is made of nickel-titanium wire, and then locked by a unique locking / unlocking device. The advantage is that the working state of the valve can be observed before the release is completed. , if the implantation condition is not ideal or the working condition is not good, it can be fully retracted into the sheath, reimplanted or the valve can be replaced, but the disadvantage is that the mechanical locking is more complicated, and it is axially locked, which affects the annulus and the left ventricular outflow tract. Too much compression can easily cause conduction block

Method used

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  • Connection release structure and system
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  • Connection release structure and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] An embodiment of the connection release structure 200 is as Figure 1-2 As shown, it is used for connecting release 100 , more precisely, for capturing and releasing release 100 . It includes a connection fixing system 201 and an unlocking sleeve system 202, the connection fixing system 201 includes a connection fixing structure 2011, the connection fixing structure 2011 is movably connected with the loading sheath 300, the unlocking sleeve system 202 includes an unlocking sleeve 2021, the The unlocking sleeve 2021 is movably connected with the loading sheath 300. When the connection release structure is used for supporting the release object, the connection fixing structure 2011 is used to connect with the release object 100, and the unlocking sleeve 2021 is used for locking Connect the fixing structure 2011 with the releasing object 100 .

[0110] Although the connection and fixing structure described in this embodiment is a hook structure, it may also be one or more...

Embodiment 2

[0128] Different from Embodiment 1, this embodiment provides a connection release system, including a connection fixing system 201, an unlocking sleeve system 202, and a release object 100. The connection fixing system 201 includes a connection fixing structure 2011, and the connection fixing structure 2011 is movably connected with the loading sheath 300, preferably a sliding connection, and the unlocking sleeve system 202 includes an unlocking sleeve 2021, and the unlocking sleeve 2021 is movably connected with the loading sheath 300, preferably a sliding connection; the connection fixing structure 2011 is connected with the release object 100 , and the unlocking sleeve 2021 is locked and connected with the fixing structure 2011 and the release object 100 .

[0129] Although the connection and fixing structure described in this embodiment is a hook structure, it may also be one or more of a noose structure, a clip structure or a hook structure.

[0130] In one of the possibl...

Embodiment 3

[0161] In this embodiment, the connection and fixing structure 2011 is a lasso structure, and the connection and fixing structure 2011 will be replaced by a noose structure in the following. The proximal side of the cable structure), and the side away from the loading sheath 300 is the distal side of the connection fixing structure 2011 (lasso structure);

[0162] In the first state, the connection and fixing structure 2011 (lasso structure) is connected to the release object 100; in the second state, the connection and fixing structure 2011 (lassage structure) is disconnected from the release object 100;

[0163] In one of the embodiments, the noose structure has a contracted state and an inflated state;

[0164] In one of the embodiments, in the first state, the hanging ear structure 102 passes through the noose structure, and the noose structure is in a contracted state, and the noose structure and the hanging ear structure 102 are engaged with each other;

[0165] In one ...

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PUM

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Abstract

The invention discloses a connection release structure and system. The connection release structure is used for connecting a released substance, is arranged on a loading sheathing canal, and comprisesa connection fixing system and an unlocking sleeve system; the connection fixing system includes a hook structure; the unlocking sleeve system includes an unlocking sleeve; the connection fixing system and the unlocking sleeve are movably connected with the loading sheathing canal; a connection fixing structure is used for being connected with the released substance; and the unlocking sleeve is used for locking the connection fixing structure and the released substance. The connection release structure and connection fixing system provided by the invention can accurately control the stabilityand coaxiality of a valve stent during release, and the position of the valve stent is effectively adjusted or the valve stent is completely recovered in the implantation process so as to guarantee that a valve has a good working condition after being implanted.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a connection release structure and a system for implanting an artificial valve stent into a channel in a mammalian body. Background technique [0002] With the increasing life expectancy and the aging trend of the global population, the incidence of valvular heart disease has shown a significant increase trend. Among elderly patients, valvular heart disease ranks third, second only to hypertension and coronary heart disease , the incidence rate is as high as 13.3%. At first, aortic valve disease could only be treated conservatively with drugs. Surgical aortic valve replacement (SAVR) appeared in the late 20th century, and artificial valves were implanted into the body through surgical thoracotomy. There are also certain requirements. For elderly patients with high surgical risks, SAVR treatment is too risky and is listed as a contraindication. With the development of me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
CPCA61F2/2436A61F2/2418
Inventor 邱克劲吴永健赵轩铖刘鹏飞昌仁操刘小建张昱昕
Owner LEPU MEDICAL TECH (BEIJING) CO LTD