Ventricle assisting device capable of enhancing cardiac functions

A ventricular assist device and heart function technology, applied in heart valve, medical science, prosthesis, etc., can solve the problems of limited adaptability, large cardiac trauma, difficult surgical operation, etc., to reduce the diameter and volume, reduce trauma, reduce The effect of myocardial oxygen consumption

Active Publication Date: 2018-07-24
NINGBO DIOCHANGE MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the object of the present invention is to provide a ventricular assist device capable of enhancing cardiac function that can be implanted through minimally invasive interventional surgery, so as to solve the problems of spatial positioning and implantation in the process of remodeling the heart structure in the prior art. Difficult surgical operation, large trauma to the heart, limited adaptability, etc., so as to effectively assist the heart contraction

Method used

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  • Ventricle assisting device capable of enhancing cardiac functions
  • Ventricle assisting device capable of enhancing cardiac functions
  • Ventricle assisting device capable of enhancing cardiac functions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The ventricular assist device (hereinafter referred to as "the device") that can enhance the cardiac function provided by the present invention includes two magnetic devices 1 that can attract each other, and the magnetic devices 1 are arranged around the heart wall 20. The two magnetic devices 1 attracted to each other generate a mutual attraction force F. When the heart contracts, the force F exerts a pull on the heart tissue directly in contact with the magnetic device 1, including the heart wall 20 of this embodiment. The force or pressure reduces the distance between the two magnetic devices 1 in direct contact or the surrounding heart tissues, thereby driving the entire heart to contract. Therefore, the two magnetic devices 1 can assist the heart to contract, and finally make each stroke The cardiac output increases, thereby improving the symptoms of heart failure. In one embodiment, the two magnetic devices 1 are all located in the heart wall 20, such as Figure 1a...

Embodiment 2

[0049] Such as image 3 As shown, based on the first embodiment, the second embodiment is different from the first embodiment in that the device includes a plurality of mutually attracting magnetic devices 1, all the magnetic devices 1 are arranged in a ring around the heart wall 20, This design can not only achieve all the advantages described in the first embodiment, but also can fully ensure that the mutual attraction between the multiple magnetic devices 1 forms a superimposed effect, so that the device can play a larger role in assisting the heart contraction. In addition, it is more important Therefore, by greatly increasing the number of injection implantation points that thicken the thickness of the heart wall 20, the total volume of all the magnetic devices 1 implanted in the heart wall 20 can be further increased, and the internal cavity of the heart can be reduced. Volume, thereby further reducing the pressure on the heart wall 20, especially the ventricular wall 201...

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Abstract

The invention relates to a ventricle assisting device capable of enhancing cardiac functions. The ventricle assisting device comprises at least two magnetic devices attracting each other. Each magnetic device comprises a self-cured or self-gelatinized material and multiple magnetic elements mixed in the self-cured or self-gelatinized material. The magnetic devices can be injected through an injection system, and in the injection process, the self-cured or self-gelatinized materials are fluid. The thickness of the heart wall can be remarkably increased, the volume of cavities in the heart can be reduced, the cardiac functions can be enhanced, the magnetic force can be adjusted and micro-regulated in proper time in time, the magnetic field direction of the device can be actively and spontaneously adjusted to be optimal, it is guaranteed that the device can achieve the effect of assisting in systole, and meanwhile minimally-invasive implantation can be achieved through a minimally-invasive interventional operation. The ventricle assisting device is simple and practical in overall design, good in fit adaptability to heart tissue, wide in application range, safe and effective.

Description

Technical field [0001] The present invention relates to the technical field of heart failure treatment, in particular to a ventricular assist device capable of enhancing heart function. Background technique [0002] The main function of the heart is systolic ejection and diastolic pumping. Due to various cardiac structural or functional diseases, ventricular ejection dysfunction, decreased cardiac output and circulatory congestion and other clinical manifestations, systolic heart failure occurs. For patients with systolic heart failure, left ventricular assist devices, such as auxiliary pumps, isolation / resection of non-functional zone, and ventricular restraint devices, are usually used for treatment. [0003] For ventricular restraint devices, in 2005, MiCardia proposed a method of using magnetic elements to reshape the heart shape in patent WO2006 / 019520, that is, multiple magnetic elements are implanted in the heart tissue or connected to the surface of the heart, using the mag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/00A61F2/24
CPCA61F2/0095A61F2/2478A61F2002/249A61F2210/009
Inventor 吕世文李彪董娟
Owner NINGBO DIOCHANGE MEDICAL TECH CO LTD
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