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flexible ventricular assist device

A ventricular assist device and flexible technology, applied in the directions of circulatory assist device, blood pump, suction device, etc., to reduce myocardial damage, assist heart pumping function, and strengthen the effect of assisting

Active Publication Date: 2022-02-22
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is to provide a flexible ventricular assist device with a simple structure, which can fit the shape of the heart and adapt to the torsional deformation of the heart in view of the above-mentioned problems existing in the existing cardiac assisting devices.

Method used

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Examples

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Embodiment

[0048] See figure 1 The flexible ventricular assistance device in the illustrated is a specific embodiment of the present invention comprising an elastic housing 11 that is bonded to the outer wall of the heart 9, and a plurality of set of pneumatic muscle 100 inserted within the elastic housing 11, wherein At least two sets of pneumatic muscles respectively correspond to the left ventricular and right ventricular setting of the heart 9, and the pneumatic muscle 100 is including the airbag structure, and the expansion and contraction of the airbag is achieved, and the muscle action is simulated, and the intramuscular expansion and contraction assisted heart shrink. And diastolic, in the elastic housing 11, there is provided a airway that communicates all pneumatic muscle internal airbags, and the airway of the entire device leads to the outer gas source of the connecting body through the inlet and outlet provided on the elastic housing 11.

[0049] The elastic housing 11 constitut...

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Abstract

The invention discloses a flexible ventricle assisting device, comprising an elastic shell attached to the outer wall of the heart and at least two groups of pneumatic muscles embedded in the elastic shell corresponding to the left and right ventricles of the heart; An airway connecting the airbags inside all the pneumatic muscles, the airway is led out through the air inlet and outlet on the elastic housing to connect to an external air source; a strain limiting layer is set on the outer airbag wall of the pneumatic muscles away from the heart. The invention can assist the heart pumping function of heart failure patients. The whole device has a simple structure, and the elastic shell can be designed to be lighter and thinner, which reduces the load on the patient's body by the implanted device. The overall elastic structure can better cover and adapt to the hearts of different patients. Different biological characteristics, wider adaptability, and can adapt to the twisting of the heart in the process of acting on the heart, reducing the damage to the heart myocardium, and through the feedback control of the cardiac pacing signal, the heart of patients with heart failure can achieve Normal pumping levels.

Description

Technical field [0001] The present invention relates generally to a flexible ventricular auxiliary device. Background technique [0002] Non-blood contact ventricular auxiliary devices are mechanically squeezed with more blood, which is not contacted with blood, and can avoid many biological compatibility problems, which are better than direct contact with blood pumps. . However, there are still many defects that currently study direct heart auxiliary devices, such as: [0003] The application number is disclosed in CN201210106498.0 discloses a volume-adjustable direct ventricular auxiliary device, which relates to a direct ventricular auxiliary device that adapts to different sizes, and its design is large, including non-elastic housing, Ventricular auxiliary film, adjustable liner film, heart protective cover, airbag joint, sealing metal block, upper seal ring, lower sealing ring, etc., rigid housing results in excessive weight, easy to cause surgery, and aggravate After the pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M60/191A61M60/289
Inventor 云忠徐康姜豪
Owner CENT SOUTH UNIV
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