SU1001928A1 - Apparatus for facilitating heart activity - Google Patents

Description

one

The invention relates to medical technology and can be used to assist the heart in cases of myocardial infarction and cardiogenic shock.

A device for facilitating cardiac operation is known, comprising a catheter with openings at one end and a chamber hermetically mounted on the same end of the catheter so that all openings of the catheter are inside this chamber.

 The closest technical solution (prototype) is a device for facilitating the work of the heart, containing two cans and a catheter. 2

The disadvantage of the known devices in-, 5 l is that they injure the tissues of the heart and are difficult to introduce into the organ.

The purpose of the invention. Reducing tissue tissue trauma.

The goal is achieved by the fact that the device 2o, to facilitate the work of the heart, containing two canisters and a catheter, is provided with a flexible tube, at the ends of which are placed cans connected with the catheter,

a cylinder of microporous material with mesh electrodes on its inner and outer surfaces, mounted in one of the cartridges dividing the cavity of this cartridge into two chambers.

The drawing shows a device for facilitating the work of the heart.

The device consists of intra-aortic 1 and intraventricular 2 cartridges interconnected by a flexible tube 3. At the end of tube 3, made in the vice cylinder sealed from one side of a microporous material, mesh electrodes 4, 5 are located, the findings of which are ps placed in the catheter 6.

Claims (2)

A device whose internal cavity is pre-filled with working fluid is inserted using a catheter 6, for example, through the femoral artery into the heart so that the balloon 2 is in the left ventricle as well. spray I - in the aorta. The device can also be inserted through the aorta with an open heart operative. When a constant voltage is applied to the electrodes 4, 5, the working fluid is transferred from one device chamber to another due to the action of the electrochemical effect. As a result, for example, the balloon I is compressed, the a-balloon 2 p is blown. When the polarity of the voltage on the electrodes 4, 5 is changed, the i: direction of fluid movement changes. The voltage variability varies in such a way that the intraventricular balloon 2 is filled with liquid, i.e. it swells during systole and intra-aortic 1 during diastole of the heart. Inflating the intraventricular balloon 2 during systole contributes to the expulsion of cardiac blood and enhanced nutrition of the myocardium through collateral vessels. By inflating the intra-aortic balloon I in the diastole period, blood is distilled from the heart to the peripheral exchange vessels. The use of the invention will reduce the heart injury when. helping the sick heart and increase the reliability of the device. Control of the device is simplified, because the control is carried out only by one magnitude of the voltage on the electrodes and 284 synchronization of the operation of the balloons is not required, as well as due to the use of an electrical voltage signal, since no additional conversion of the electrocardiogram signals into pressure pulses is required. Apparatus of the invention for facilitating the work of the heart, comprising two cartridges and a catheter, characterized in that in order to reduce the traumatization of the heart tissues, the OIO is provided with a flexible tube, at the ends of which are placed cartridges associated with the catheter, a cylinder of microporous material with mesh electrodes on it an inner and outer surface mounted in one of the cans that separates the cavity of the can on the chamber. Sources of information taken into account in the examination 1. USSR author's certificate NO 304954, cl. A 61 M 1/02, 1969. 2 .. Bregmann 0., et all. lett vent rical ana Unidirectional intra-aortic ballon pumping. Journalb of Thoracic and cardiovascular surgery, vol.68, no. 5, 197, p.p. 677-686.