Pulsation type double-haematodocha heart auxiliary circulation device

Abstract

The invention discloses a pulsation type double-haematodocha heart auxiliary circulation device. Two hydraulic chambers are arranged in a blood pump shell, a first haematodocha is connected with a second haematodocha through a one-way valve in the center of a baffle at the middle part of the blood pump shell, a first cavity is arranged between the first haematodocha and the blood pump shell, a hydraulic nozzle is arranged outside the first cavity and is communicated with a first pressure cavity through a pipeline, a second cavity is arranged between the second haematodocha and the blood pump shell, a hydraulic nozzle is arranged outside the second cavity and is communicated with a second pressure cavity through a pipeline, a piston is arranged between the first pressure cavity and the second pressure cavity and is connected with a silk pole mechanism installed on a servo motor through a connecting rod, and an embedded computer is respectively connected with a display and an operation keyboard. The invention has the advantages of lightening the heart load, lowering the myocardial oxygen consumption, enhancing the blood pressure in distole, promoting the cardiac pumping function, providing restoring environment to myocardial cells, stable work, reliable running, simple device and convenient operation.

Description

【Technical field】 [0001] The invention relates to the field of cardiac assisting devices, in particular to a pulsating double-vessel cardiac assisting circulation device. 【Background technique】 [0002] Coronary artery disease, myocarditis, hypertension, and various types of cardiomyopathy often lead to decreased cardiac function and congestive heart failure. The therapeutic effect of internal medical drug therapy on such diseases is very limited, and most of them cannot effectively prolong the patient's life. In the field of surgical treatment, heart transplantation is currently a relatively successful technology, but there are 10 million patients with heart failure in China every year, of which 2 to 3 million die from heart failure, but only nearly 200 patients have the opportunity to receive it every year. Heart transplant. It can be seen from this that heart transplantation is far from meeting the needs of heart failure patients, and exploring new treatment methods has...

AI Technical Summary

Problems solved by technology

[0005](1) Pneumatic power is used, resulting in large air source equipment, loud noise, and inconvenient movement;

[0006](2) Without a control device, it is not convenient to adjust the working status of the cardiac assisted circulation device, and it cannot be monitored in real time;

[0007](3) No sensing system involved, unable to keep the pulsating pump in sync with the natural frequency of the human body;

[0008](4) The cardiac assisted circulatory device is designed to add a soft cavity to the circular tube-shaped sealed cardiac assisted circulatory device shell, as a blood-driven bladder, the cavity The stroke volume and output pressure of the capsule are unstable, and it is easily deformed irregularly, and the service life is short

[0009] At present, there is no commercial artificial heart assist device in China;

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