Press control device of cardio-pulmonary resuscitation machine and control method thereof

Abstract

The invention discloses a press control device of a cardio-pulmonary resuscitation machine and a control method thereof, and the press control device relates to a medical appliance. The device comprises an integrated circuit control unit, a reversing solenoid valve unit and a press unit which are sequentially connected from front to back. The integrated circuit control unit comprises a microcontroller, a power supply circuit and a reset circuit. The method mainly comprises the following steps: determining press air supply time n seconds corresponding to press depth x millimeters according to the relation between the press depth and the press air supply time; determining the circulation time 2i seconds of a press / shrinkage operation according to the press frequency; finishing n-second pressair supply by the reversing solenoid valve unit; downwards moving to the required press depth by the piston; realizing press air discharge by the reversing solenoid valve unit after starting to pressfor i seconds; and returning to a press initial position under the action of a return spring by the piston. Because the press control device has electronic and digital control functions and strong expandability, individualized ordering can be realized according to user demands.

Description

technical field [0001] The invention relates to a medical device, in particular to a compression control device for a cardiopulmonary resuscitation machine and a control method thereof. Background technique [0002] In the emergency rescue of patients with cardiopulmonary arrest, the traditional methods are manual chest compressions and artificial respiration. When pressing with bare hands, the compression technique of rescuers directly determines the effect of patient resuscitation: due to fatigue and excessive physical exertion, it is difficult for rescuers to increase the frequency of compressions to ≥ 100 times / min, and it will be difficult for rescuers to increase the frequency of compressions to ≥ 100 times / minute, and it will be difficult for rescuers due to improper compression pressure, position Rib fractures or pneumothorax, hemothorax, etc. Although mouth-to-mouth artificial respiration is simple to operate, it is rarely implemented in actual rescue due to the ps...

AI Technical Summary

Problems solved by technology

[0005] Chinese Patent Publication No. CN 201108579Y, the publication date was September 3, 2008. The name of the invention is "Control Circuit of Pneumatic Cardiopulmonary Resuscitation Machine". Complex control circuit with fixed frequency of compression and oxygen delivery, including control center, power module, display, compression controller and breathing controller, etc.

However, most of them are mechanically controlled, and it is difficult to increase the compression frequency to ≥100 times / minute, and there is no software and hardware solution for compression depth control and compression / contraction time ratio control of 1:1, which is not in line with the electronic development of cardiopulmonary resuscitation machines. trend requirements

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