RU2693822C1 - Device for heart massage with simultaneous artificial ventilation, monitoring cardiac activity and data transmission in an person with severe heart failure - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment. Device comprises a cannula for transthoracic introduction, connected to a two-channel distributor, connected to each other through a cannula two elastic chambers made of a sealed biocompatible material, having identical volume, wherein one of the chambers is placed with the possibility of transthoracic introduction in a folded state through the cannula and inflated under pressure of the introduced air to exert a pressure on the heart, and the other external one – with the possibility of visual control of the device functioning, a flexible mask connected to the two-channel distributor. Compressor is designed to introduce and discharge air through air ducts into chambers and flexible mask and is connected to two-channel distributor. Two-channel distributor is connected by air ducts with cannula and flexible mask. Automatic control unit of compressor is intended for air pumping into chambers and flexible mask through two-channel distributor. Fixing belts are connected to the cannula with chambers, an automatic control unit, an autonomous power supply unit and an electrocardiograph with the possibility to fix the device on the body and are connected to a flexible mask for fixation of the device on the head. Electrocardiograph is equipped with three electrodes for recording cardiac activity in three leads according to Eintochoven and connected to an autonomous power supply unit.

EFFECT: disclosed is a device for heart massage with simultaneous artificial ventilation, monitoring cardiac activity and data transmission in a person with severe heart failure.

1 cl, 1 dwg

Description

The invention relates to medicine, namely to cardiology, to devices for the treatment of severe forms of heart failure.

It is known that in severe forms of heart failure, especially in the acute form, there is a need to maintain blood circulation and save a person’s life, conducting a heart massage: direct or, more often, not direct, with simultaneous artificial ventilation of the lungs.

The disadvantages of these methods of treatment is insufficient efficacy of support for blood circulation, traumability of the sternum and ribs, not rarely - damage to the lungs; with non-direct massage and expiratory artificial respiration, there is a need for large and long-lasting physical efforts of the resuscitator, the lack of monitoring of cardiac activity (especially during long-term transportation) (Negovsky V. A. Resuscitation of the body and artificial hypothermia - Medgiz, 1960; Negovsky V. Fundamentals of resuscitation - M .: Medicine, 1975; Tsybulak GN Resuscitation - Moscow: Medicine, 1976; Negovsky VA Indirect cardiac massage and expiratory artificial respiration - Moscow, 1966; Baranovsky VA Reference book medical AETR - Medgiz 2009, Chapter 14;)..

A device is known (patent No. US 6,193,680 B1, 2001). This technical solution - the device has significant drawbacks that prevent its applicability in the consequences of the presence of an obstacle to the implementation of the necessary artificial ventilation of the lungs without monitoring cardiac activity.

Known device Bag AMBU Cyclone Pocket BVMT-tactical pump for artificial ventilation of the lungs (Dr. Holger Hesse and Henning Ruben, 1956). The disadvantage of this device is the need to carry out ventilation manually and without monitoring cardiac activity.

Known inventions Copyright certificates №288861 of 09/25/1969, №564864 of 05/27/1975, №990224 of 07/17/1981, which have a common drawback, namely, that the effects of devices on the heart are carried out by an ineffective, traumatic indirect heart massage.

Known invention patent No. 2585702 dated 07/15/2014, the disadvantage of this invention is the absence of an automated mechanical ventilation unit, an electrocardiograph and a data transmission unit for cardiac activity and location over a wireless channel.

A new, previously unknown technical solution is proposed - a device for cardiac massage with simultaneous artificial ventilation of the lungs, monitoring of cardiac activity and transmission of data on cardiac activity and location over a wireless channel in a person with severe heart failure, which allows long-term direct exercise. automatic heart massage by rhythmic pressure on the heart (through the pericardium) with a chamber filled with air, which introduced into the retrosternal space through the cannula and simultaneously monitoring of cardiac activity and artificial ventilation of the lungs through a flexible mask, conduct visual monitoring of the mass pressing pressure on the heart, monitoring the functioning of the heart and transmitting data on the cardiac activity and location over a wireless channel , for example, cellular communication, radio channel.

The device (Fig. 1) differs in that it consists of spatially located elements:

1. Flexible mask 9 (fixed by straps 8 to the head).

2. Pneumatic part, fixed to the chest straps 8, consisting of:

- cannula 1, for transthoracic injection into the retrosternal space in the folded state of an airtight chamber of elastic biocompatible material;

- sealed chamber 2 of elastic biocompatible material introduced through a cannula into the retrosternal space;

- sealed external chamber 3 of elastic biocompatible material connected through a cannula to a retrosternal chamber of identical size (volume);

- two-channel distributor 4, connected by air ducts to the cannula and flexible mask;

- compressor 5, connected by air ducts with a two-channel distributor and through it with a cannula, chambers and a mask;

- air ducts 10.

3. The control unit is fixed to the body in the abdomen straps 8, consisting of:

- automatic control unit 6;

- block autonomous power supply 7;

- electrocardiograph 11 with three electrodes for recording cardiac activity in three leads, according to Einthoven, which is fixed to the body in the abdominal area with belts 8;

- data transfer unit for cardiac activity and location over a distance over a wireless channel 12.

The device works as follows: through the cannula, a sealed chamber of elastic biocompatible tissue in the folded state is inserted into the retrosternal space, which is moved apart under air pressure to the size necessary for carrying out a direct pressure action through the pericardium on the heart to realize its massage. This retrosternal chamber is connected through a cannula to another external chamber of biocompatible elastic tissue of identical size (volume).

The cannula is connected via a two-channel distributor and a duct with a flexible mask and a compressor that, according to the algorithm set by the automatic control unit, pumps air into the chambers and the flexible mask, performing a direct heart massage and artificial ventilation of the lungs. Three electrodes are placed along the Einthoven for monitoring cardiac activity.

To fix the device on the patient's body, use straps that fix the cannula with cameras in the sternum area; an automatic control unit, an autonomous power supply unit and an electrocardiograph on the abdomen, electrodes placed on both wrists and left leg. On the ends, fixing the device of belts, are located clamps in the form of hooks or fasteners of type "Velcro". A flexible mask on the head is fixed with straps with hook or clasp type fasteners. The automatic control unit controls the operation of the compressor; the value of the overpressure of the air generated by the compressor is in the range of 5-15 kPa, the frequency of the specified pulsation is 60 per minute, the number of breaths is 20 per minute. The automatic control unit consists of a microcontroller, a display, optical isolation, a USB input / output port for programming the microcontroller. The display of the unit contains functions for controlling the compressor, namely: the pressure value, the pulsation frequency and the number of breaths per minute. A doctor, based on the clinical situation, can both increase the pressure, the pulsations and the number of breaths, and decrease. Feedback is carried out on the patient's appearance and pulse and respiration frequency, electrocardiogram. The transmission of the cardiac data and the patient's location is the responsibility of the data transmission unit connected to the electrocardiograph.

The autonomous power supply unit is a set of rechargeable batteries with the ability to work from the network. Power lithium-polymer batteries are used, which provide the current required for the operation of the compressor, electrocardiograph.

The cannula is inserted through the sternum sterile into the retrosternal space.

The external camera allows you to visually monitor the functioning (massage pressing effect) of the retrosternal chamber on the heart.

The technical result of using this device is the elimination of heart failure and long-term maintenance of blood circulation while simultaneously monitoring cardiac activity, artificial lung ventilation, and transmitting data on cardiac activity and location over a distance through a wireless communication channel, for example, cellular communication, a radio channel.

Claims (10)

A device for massaging the heart with simultaneous mechanical ventilation, monitoring of cardiac activity and data transmission in a person with severe heart failure, characterized in that it includes: - a cannula for transthoracic administration, connected to a two-channel distributor, - connected to each other through a cannula two elastic chambers made of sealed biocompatible material, having an identical volume, with one of the chambers placed with the possibility of transthoracic injection in the folded state through a cannula and inflated under the pressure of the injected air to exert a pressing effect on the heart, and another external - with the ability to visually monitor the operation of the device, - flexible mask connected to a two-channel distributor, - a compressor for introducing and venting air through ducts into the chambers and a flexible mask connected to a two-channel distributor, - two-channel distributor connected by air ducts to the cannula and flexible mask, - an automatic compressor control unit for pumping air into the chambers and a flexible mask through a two-channel distributor, - fixing belts connected to the cannula with cameras, an automatic control unit, an autonomous power supply unit and an electrocardiograph with the possibility of fixing the device on the body and connected to a flexible mask for fixing the device on the head, - an electrocardiograph with three electrodes for recording cardiac activity in three leads, according to Einthoven, connected to an autonomous power supply unit. - a data transmission unit for cardiac activity and location over a wireless communication channel connected to an electrocardiograph.

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