System and method implemented by computer for the control of anesthetic fluids through fuzzy control

A computer-implemented method for controlling a flow of anesthetic fluid that comprises executing in a computing unit (1) the following steps:

• a) Receiving an input data packet (2) including demographic data and physiological data of a user, and target concentration data of an anesthetic substance,
• wherein the input data packet (2) is entered by an operator through an input/output device (3) connected to the computing unit (1):
• b) Obtaining a first value (14) of a configuration data (4) by performing a data processing method (5) configured to perform a pharmacokinetic processing method that takes as input the input data packet (2) and a database pharmacokinetic data;
• c) Inputting the first configuration data (4) into an anesthetic fluid infusion pump (6), wherein the first configuration data (4) sets anesthetic fluid flow operating conditions:
• d) Receiving state data (8) from an instrumentation system (7)
• wherein the state data (8) includes records of at least one variable selected from the group that includes state variables of the user under anesthesia, electroencephalographic signals, electromyography signals, data derived from electroencephalographic and/or electromyography signals, and combinations thereof:
• e) Obtaining an activation data (9) by means of a validation process (10) that takes the state data (8) as input and a predetermined threshold range (13) related to an anesthetic state of the user,
• wherein the activation data (9) is generated when at least one of the state data variables (8) has a value outside the predetermined threshold range (13),
• wherein the predetermined threshold range (13) is obtained from a pharmacodynamic database:
• f) Obtaining a second value (11) of the configuration data (4) performing a control process (12) that includes the substeps:
• f1) Obtaining an output data by performing a PID (Proportional-Integral-Derivative) control method that takes as input the first value (14) of the configuration data (4), the state data (8) and the default threshold (13), and
• f2) Obtaining the second value (11) of the configuration data (4) performing a fuzzy control method taking as input the output data of the PID control method, and
• g) Sending the configuration data (4) with a second value (11) to the anesthetic fluid infusion pump (6) to modify the anesthetic fluid flow conditions;
• and
• h) Repeating steps c) to g).