Nihon Kohden Corporation

Other

Kawasaki Gakuen Educational Foundation

Shunichi Takagi

Takagi, Shunichi

Shunji Iwata

Kazuya Nagase

Shigehiro Nishiwaki

Ryugo Odaka

Hiroshi Yoshihara

Shigeyoshi Kitamura

Hideki Nakatsuka

A muscle relaxation monitoring apparatus includes: a stimulating circuit that stimulates a nerve of a living body; a signal detecting circuit that detects an electric signal generated by a muscle reacting to the stimulation performed by the stimulating circuit; a reaction time calculating circuit that calculates a reaction time which elapses from the stimulation of the nerve by the stimulating circuit until the electric signal is detected by the signal detecting circuit; and a relaxation degree determining circuit that determines a muscle relaxation degree of the living body based on the length of the reaction time calculated by the reaction time calculating circuit.

Muscle relaxation monitoring apparatus and patient monitor

A muscle relaxation monitoring apparatus includes a calibration processing section for performing a calibration process that electrically stimulates a nerve which is an observation portion of a subject, by a predetermined stimulation current value at a predetermined stimulation timing, and that acquires a stimulation current value of a supramaximal stimulation exceeding a maximal stimulation of the subject, based on an amplitude peak value of an electric signal that is based on a stimulation response of a muscle due to the electrical stimulation. The calibration processing section performs, when the subject is in an awake state, the calibration process while using a first stimulation timing that is preset, as the stimulation timing, and performs, when the subject is in a muscle relaxation state, the calibration process while using a second stimulation timing that is longer in period than the first stimulation timing, as the stimulation timing.

Muscle relaxation monitoring apparatus and calibration processing method

Growing community of inventors

Tokorozawa, Japan

Shunji Iwata