Extra-aortic ballon eounterpulsation type heart chamber auxiliary pump

A ventricular assist and aortic technology, applied in the field of medical devices, can solve the problems of reducing the load, improving the impact of coronary artery blood supply, uncertainty in curative effect, and vascular distortion, so as to benefit heart function, reduce ejection resistance, and improve blood circulation. effect for improvement

Inactive Publication Date: 2009-07-22
姬尚义
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Problems solved by technology

Although the intra-aortic balloon counterpulsation device has a certain effect, it is difficult to put in some patients due to arteriosclerosis, blood vessel distortion, and deformity. In addition, it is placed far away from the left subclavian artery. The improvement of coronary artery blood supply will be greatly affected, and the uncertainty of curative effect will also arise.

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  • Extra-aortic ballon eounterpulsation type heart chamber auxiliary pump

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experiment example

[0034] Experimental materials: mixed-breed domestic dogs, weighing between 30 and 42 kg, 1 female dog and 3 male dogs.

[0035] Experimental method: Place the domestic dog in a supine position, open the chest in the middle, cut the pericardium longitudinally, insert a 22# arterial cannula at the root of the ascending aorta, and insert an arterial pressure measuring needle in the right innominate artery. External balloon counterpulsation ventricular assist pump (80ml) is placed and connected to the aortic cannula, with a 10mm diameter tube in the middle, 15cm long, driven by a Berlin Heart artificial heart drive device, with a frequency of 75 beats / min, recorded before each counterpulsation Basal heart rate, basal blood pressure, heart rate and blood pressure were recorded again after counterpulsation for 5 minutes, rested for 15 minutes and counterpulsed again. The values ​​were taken 5 times for each animal, and 20 times for the 4 dogs, and the paired analysis (t test) was pe...

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Abstract

The invention provides a lateral aortic balloon counterpulsation cardiac ventricle donkey pump, which consists of a hard shell, a balloon, an air inlet pipe which connects a drive unit and the lateral aortic balloon counterpulsation cardiac ventricle donkey pump, and a blood pipe which connects a posterior aorta and a cardiac ventricle donkey pump and is used for blood to flow, wherein the balloon splits the hard shell into an air receiving cavity and a blood receiving cavity. Compared with the prior intra-aortic balloon counterpulsation pump, the lateral aortic balloon counterpulsation cardiac ventricle donkey pump has the advantages of simple structure, low production cost, convenient use and high use safety, not only can be arranged inside a thoracic cavity but also can be arranged in vitro during operation and postoperative recovery, has good effects of lightening the afterload of a left ventricle and improving blood supply of coronary arteries because the mounting position of the lateral aortic balloon counterpulsation cardiac ventricle donkey pump is close to the heart, and has stable treatment effect. Moreover, the blood enters in and out from the same pipe, so that thrombus is difficult to generate.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a medical instrument for heart disease treatment and operation. Background technique [0002] When left ventricular contraction is weak due to various causes and it is difficult to discharge enough blood, drugs can be used to enhance the systolic function of the heart to increase blood discharge, but there are still many patients who are difficult to improve, and the impact of hypotension on coronary blood supply, Often form a vicious circle, eventually leading to the patient's death. At present, intra-aortic ballon pump (IABP) is often used to improve the above situation. Intra-aortic Ballon pump (IABP) is one of the support methods for mechanically assisted systemic circulation. It was first used in clinical cardiology by Clauss in 1967. Since the origin of the shock, it has been widely used in China in recent years. It implants a catheter with a balloon through the femoral...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/10A61M1/12
Inventor 姬尚义张玉萍
Owner 姬尚义
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