Muscular relaxation monitoring device

A muscle relaxation monitoring device comprising:

• a current stimulator to supply a stimulating current to a muscle of a patient;
• a stimulus response detector to detect a stimulus response of the muscle of the patient, that is produced by stimulating with the current stimulator;
• a memory to record the stimulating current supplied to the muscle of the patient in steps increasing prior to administration of a muscle relaxant, and the stimulus response corresponding to each said stimulating current value;
• and
• a controller to identify when the stimulus response is saturated, and to determine an optimum current value, the optimum current value being the stimulating current supplied immediately before saturation, the controller setting the optimum current value as the current to be supplied to the patient after administration of the muscle relaxant.

A muscle relaxation monitoring device comprising:

• a current stimulator to supply a stimulating current to a muscle of a patient;
• a stimulus response detector to detect a stimulus response of the muscle of the patient, that is produced by stimulating with stimulating current from the current stimulator;
• a memory to record the stimulating current supplied to the muscle of the patient, and the stimulus response corresponding to each stimulating current;
• and
• a controller to:
• increase the stimulating current stepwise prior to administration of a muscle relaxant to the patient;
• identify saturation by determining when the stimulus response no longer increases stepwise despite the stimulating current being increased stepwise, and
• determine an optimum current value, the optimum current value being the stimulating current supplied immediately before saturation, the controller setting the optimum current value as the current to be supplied to the patient after administration of the muscle relaxant.