Flexible ventricular assist device

A ventricular assist device, flexible technology, applied in the direction of suction equipment, etc., to achieve the effect of reducing postoperative discomfort, light weight, and reducing myocardial damage
CN111921027AActive Publication Date: 2020-11-13CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2020-11-13

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Abstract

The invention discloses a flexible ventricle assist device which comprises an elastic shell attached to the outer wall of the heart and at least two sets of pneumatic muscles embedded in the elastic shell and corresponding to the left ventricle and the right ventricle of the heart respectively. An air passage for communicating the air bags in all the pneumatic muscles is arranged in the elastic shell, and is led out through an air inlet and an air outlet in the elastic shell to be connected with an external air source; and a strain limiting layer is arranged on the outer side air bag wall, away from the heart, of the pneumatic muscle. The heart pump blood function of a heart failure patient can be assisted; the whole device is simple in structure, and the elastic shell can be designed to be lighter and thinner; the load of the implantation device on the body of the patient is reduced; the whole elastic structure can better adapt to different biological characteristics adapting to hearts of different patients, is wider in adaptability, can act on the heart to conduct adaptive deformation on torsion of the heart in the heart process, reduces damage to cardiac myocardium of the heart,and enables the heart of the heart failure patient to reach the normal blood pumping level through heart pacing signal feedback control.
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Description

technical field

[0001] In particular, the present invention relates to a flexible ventricular assist device. Background technique

[0002] The non-blood-contact ventricular assist device mechanically squeezes the heart to assist the heart to pump more blood without contact with blood, which can avoid many biocompatibility problems, and its application is better than that of blood pumps and other cardiac assist devices that directly contact blood . However, there are still many shortcomings in the direct heart assist devices studied so far, such as:

[0003] The Chinese patent application with the application number CN201210106498.0 discloses a volume-adjustable direct ventricular assist device, which relates to a direct ventricular assist device that adapts to hearts of different sizes. Ventricular auxiliary film, adjustable lining film, heart protection cover, air bag connector, sealing metal block, upper sealing ring, lower sealing ring and other components, the rigid sh...

Claims

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