Method of positioning electrodes for central nervous system monitoring and sensing pain reactions of a patient
AssigneeInstrumentarium Corp.
InventorsHeli Tolvanen-Laakso, Hanna Viertio-Oja, Markku Paloheimo
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Abstract
A method concerning measurements by using an electrode array comprising three electrodes for central nervous system (CNS) monitoring from the forehead of a patient's head. A first electrode of said three electrodes is positioned between the eyebrows or immediately above the eyebrows of the patient. A third electrode of said three electrodes is positioned apart from the first electrode on the hairless fronto-lateral area of the forehead the patient. A second electrode is positioned between the first and the third electrodes on the forehead of the patient.
Claims25
Method of positioning electrodes in an electrode array comprising three electrodes for central nervous system (CNS) monitoring from the forehead of a patient's head, said method comprising the steps of:
- positioning a first electrode of said three electrodes between the eyebrows or above the eyebrows near frontalis and orbicularis muscles of the patient;
- positioning a third electrode of said three electrodes apart from the first electrode on the hairless fronto-lateral area of the frontal lobe of the patient;
- and
- positioning a second electrode between the first and the third electrodes on the forehead of the patient.
Method of sensing pain reactions of a patient in which method an array comprising three electrodes for central nervous system (CNS) monitoring comprising frontal electromyography (FEMG) signal from a patient's head, said method comprising the steps of:
- positioning a first electrode of said three electrodes on the hairless area of the patient's head in which the FEMG signal is strong;
- positioning a third electrode of said three electrodes on the hairless area of the patient's head;
- positioning a second electrode on the hairless area of the patient's head;
- and recording mainly frontal electromyography (FEMG) signals by using the first electrode to obtain an early indication of pain reactions.
Dependencies are inferred from the claim text.