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Cardiac assist device

A kind of equipment, heart technology, applied in the direction of circulatory assistance device, medical science, hypodermic injection device, etc., can solve the problem of not being able to provide a good level of return to normal heart function

Active Publication Date: 2018-03-16
UNIVERSITY OF LEICESTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in some cases, such treatment does not provide a good level of return to normal heart function

Method used

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Examples

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Embodiment Construction

[0054] 1, the in vitro test of the equipment of the present invention

[0055] Isolated porcine hearts were prepared for analysis by filling with water via valves provided in the superior vena cava and pulmonary veins (see right ventricular water supply and left ventricular water supply in Figure 1), while pressure transducers were Locate at the left subclavian artery and left pulmonary artery (see left ventricular pressure transducer and right ventricular pressure transducer in Figure 1). The remaining lumen to and from the heart is blocked. Water is supplied to the heart until the pressure detected at the pressure sensor indicates that the achieved pressure is similar to that during normal heart function (approximately 80mmHg). Hearts prepared in this manner were supported by support wires and contained relatively tightly within polyethylene bags. The vinyl bag is a non-elastic material and represents the pericardium. A device according to the invention comprising a ballo...

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PUM

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Abstract

A device for providing assistance to ventricular systole, the device comprising a pressuriser and a driver, wherein the pressuriser is adapted to be able to apply localised pressure to only the external wall of one ventricle, or a portion thereof, and the driver is operatively linked to the pressuriser so as to be able to drive a cycle of increased and decreased pressure applied by the pressuriser. The invention also relates to a method of implanting the device and a method of treating cardiac pump failure in which the device is used.

Description

technical field [0001] The present invention relates to cardiac assist devices for assessing cardiac function and, in particular, to a method of assisting ventricular contraction. The invention also relates to a method by which the aforementioned device can be used. Background technique [0002] In the heart of a healthy individual, the amount of blood pumped from the ventricles is usually optimal (that is, blood pumped from the left ventricle to the aorta and from the aorta to the rest of the body, and from the right ventricle to the pulmonary artery and blood from the pulmonary artery to the lungs). However, in many acute and chronic conditions, the ability of ventricular tissue to effectively contract is adversely affected, resulting in a decrease in the amount of blood that can be pumped from either or both ventricles (i.e. Decrease in the fraction of the amount of blood that can be ejected during a systolic period; inadequate cardiac output). As a consequence of this...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/10A61M1/12A61M60/165A61M60/268A61M60/531A61M60/554
CPCA61M60/268A61M60/165A61M60/531A61M60/554A61M60/148A61M60/274A61M60/894
Inventor D·阿德拉姆S-R·皮亚尔
Owner UNIVERSITY OF LEICESTER
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