Extracorporeal circulation perfusion policy making system

Abstract

The invention relates to an extracorporeal circulation perfusion policy making system and belongs to the technical field of biomedical engineering. The extracorporeal circulation perfusion policy making system comprises a policy making module and a detecting module. The policy making module calculates a perfusion subsidiary index according to data acquired and processed by the detecting module, and the date include a cardiac function index, an oxygen supply index, and output pressure and blood flow of a extracorporeal circulation perfusion system. The perfusion subsidiary index stands for the ratio of acting of the extracorporeal perfusion system and acting of perfusion of the heart of a patient, and the higher the perfusion subsidiary index is, the higher the energy the extracorporeal perfusion system provides for the patient is. The policy making module judges to make policy according to the cardiac function index and the oxygen supply index of the acquiring module. If the indexes are within a normal limit, the perfusion subsidiary index is a recommended value, namely a reference policy making value; if the indexes are out of the normal limit, an alarm is sent. A doctor may control the system to implement according to the reference policy making value provided by the policy making module. The extracorporeal perfusion flow is adjusted on the basis of the reference policy making value, which can adapt to physiological needs of patients and complications can be reduced.

Description

technical field [0001] The invention relates to an extracorporeal circulation perfusion decision-making system, which belongs to the field of biomedical engineering. Background technique [0002] Extracorporeal circulation perfusion system is a commonly used auxiliary means in surgical operations. Internationally, the arterial device, system and method CN201080025371.5 of Cardio-Guard Medical Company adopts a suction lumen arrangement to provide a suction flow leaving the aorta at a suction flow rate. The target perfusion flow rate and the suction flow rate can be controlled simultaneously and selectively, but this flow control does not take into account the patient's physiological parameters. Rand Co., Ltd. CN200710093658.1, a system for monitoring the extracorporeal circulation and perfusion of medical fluid during cardiopulmonary bypass, monitors and controls the blood circulation circuit of the blood pump, but its monitoring parameters are not fed back to the control of...

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Problems solved by technology

[0004] A low perfusion oxygen saturation measurement method based on autocorrelation modeling method CN103027690A of Huazhong University of Science and Technology. Although a method for measuring blood perfusion index is designed, this index only reflects the pulsation of blood flow and cannot express The ratio relationship between extracorporeal perfusion flow and patient's own heart perfusion cannot provide a basis for adjusting extracorporeal perfusion flow

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