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公开(公告)号：US20210128008A1
公开(公告)日：2021-05-06
申请号：US17076503
申请日：2020-10-21
发明人： Hiroshi YOSHIHARA , Shigeyoshi KITAMURA , Kazuya NAGASE , Shunji IWATA , Shunichi TAKAGI , Hideki NAKATSUKA
IPC分类号： A61B5/0488
摘要： 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.
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公开(公告)号：US20220401008A1
公开(公告)日：2022-12-22
申请号：US17773451
申请日：2020-10-23
IPC分类号： A61B5/395
摘要： A stimulation current value that causes the supramaximal stimulation according to a subject in the muscle relaxation state is detected. A muscle relaxation monitoring apparatus includes a calibration processing section 4 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 4 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.
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公开(公告)号：US20220401007A1
公开(公告)日：2022-12-22
申请号：US17773417
申请日：2020-10-23
IPC分类号： A61B5/395
摘要： A muscle relaxation monitoring apparatus includes a calibration processing section. The calibration processing section is configured to: set an initial stimulation current value as a starting stimulation current value; determine, as a current value variable process, one of a first and a second current value variable process; detect, as a first peak value and a second peak value, amplitude peak values of an electric signal; and detect a stimulation current value of a maximal stimulation of a subject, based on a result of a comparison of the first peak value and the second peak value, and acquires a stimulation current value that is obtained by adding a step current value to the stimulation current value, as the stimulation current value of a supramaximal stimulation of the subject.
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