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A ventricular assist device that can enhance heart function

A ventricular assist device and heart function technology, applied in the direction of heart valves, medical science, prostheses, etc., can solve problems such as limited adaptability, large heart trauma, difficult surgical operation, etc., to achieve reduced diameter and volume, less trauma, and lower Effects on Myocardial Oxygen Consumption

Active Publication Date: 2019-07-26
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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  • A ventricular assist device that can enhance heart function
  • A ventricular assist device that can enhance heart function
  • A ventricular assist device that can enhance heart function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The ventricular assist device capable of enhancing heart function provided by the present invention (hereinafter referred to as “the device”) includes two magnetic devices 1 that can attract each other, and the magnetic devices 1 are arranged around the heart wall 20 . Two magnetic devices 1 that attract each other generate a mutual attraction F, and when the heart contracts, the force F exerts a pulling force toward the inside of the heart on the heart tissue that is in direct contact with the magnetic device 1, including the heart wall 20 of this embodiment Force or pressure, so that the distance between the two magnetic devices 1 in direct contact with or the surrounding cardiac tissue can be reduced to drive the entire heart contraction, so the two magnetic devices 1 can play the role of assisting the heart contraction, and finally make each stroke Cardiac output increases, thereby improving heart failure symptoms. In one embodiment, the two magnetic devices 1 are b...

Embodiment 2

[0049] Such as image 3 As shown, based on the first embodiment, the difference between the second embodiment and the first embodiment is that the device includes a plurality of magnetic devices 1 that can attract each other, and all the magnetic devices 1 are arranged in a ring around the heart wall 20, This design can not only obtain all the advantages described in Embodiment 1, but also fully ensure that the mutual attraction between multiple magnetic devices 1 forms a superimposed effect, so that the device can play a greater role in assisting cardiac contraction. In addition, more importantly Specifically, by greatly increasing the number of all 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 volume of the inner chamber of the heart can be reduced. volume, thereby further reducing the pressure on the heart wall 20, especially the v...

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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 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 structural or functional diseases of the heart, ventricular ejection dysfunction, decreased cardiac output and clinical manifestations such as circulatory congestion, that is, systolic heart failure occurs. Patients with systolic heart failure are usually treated with left ventricular assist devices such as auxiliary pumps, nonfunctional zone isolation / resection, and ventricular restriction devices. [0003] For the ventricular restraint device, in 2005, MiCardia proposed a method of using magnetic elements to reshape the heart shape in patent WO2006 / 019520, that is, multiple magnetic elements were implanted in the heart tissue or connected to the surface of the heart, and the magne...

Claims

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Application Information

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Patent Type & Authority Patents(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