Extracorporeal life support control device and method

Abstract

The invention discloses an extracorporeal life support control device and method. The control device comprises an ECMO control system, a blood-gas analyzer, a biochemical analyzer, an ACT detector, anair-oxygen mixer and an injection pump, and the ECMO control system is separately connected with the various instruments. Intelligence of ECMO equipment is improved, and the ECMO equipment can be automatically adjusted along with conditions of a patient in the aspect of certain treatment means. Prompt response ability of a system to change of the conditions of the patient is improved. By two adjusters with key functions, a target value can be adjusted finely, and the circumstance that the rotating speed is changed due to shaking and misoperation is avoided.

Description

technical field [0001] The invention relates to the field of health equipment, in particular to an extracorporeal life support control device and control method. Background technique [0002] At present, extracorporeal life support ECMO (membrane oxygenation) equipment is completely dependent on imports. The control system of existing foreign ECMO equipment mainly controls the motor speed, and controls the speed of the impeller inside the blood pump through magnetic coupling. The speed is controlled by a potentiometer. Generally, a limit switch is set at the position of 2000 rpm. When the speed is adjusted downward from a speed greater than 2000 rpm, the limit protection is adjusted to 2000 rpm. At this time, the limit switch must be pressed to set a value lower than With a speed of 2000, the control methods of existing foreign ECMO equipment include flow control (LPM) and speed control (RPM). There is only one speed adjustment knob, and there is no flow adjustment knob. Th...

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Problems solved by technology

[0004] At present, there are the following problems in the existing technology: the patient is treated with ECMO, which may last for several days or even weeks, and the patient's physical condition may change at any time, but it is impossible for the doctor to monitor a patient all the time, and can only observe and monitor the patient at regular intervals. Examination cannot be adjusted and treated according to the patient's condition in real time, and the delay in timeliness may lead to the deterioration of the patient's condition

[0005] When the ECMO device is used for outdoor first aid, it is necessary to carry monitors and other equipment at the same time, which is not conducive to portability and the function integration is not high

[0006] The blood temperature control is not integrated inside the ECMO host, which is inconvenient to use and operate. The external variable temperature water tank increases the system cost and reduces the system portability

[0007] Blood flow, blood pump speed and blood temperature cannot be adjusted through an interface, and the adjustment knob in the form of a potentiometer is easy to change the set value due to shaking and accidental touch

[0008] In addition, in the prior art, there is still the problem that in the flow control mode, the rapid adjustment of the target flow cannot be performed.

The speed adjustment knob may affect the change of the speed setting parameters when it shakes violently or other unexpected situations

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