Resilient Head Mounted Device and Method for Transdermal Neurostimulation and Sensing of Body Parameters
AssigneeNeurolief Ltd.
InventorsAmit DAR, Amir COHEN, Ron BELSON, Yaniv MATZA, Jonathan BAR-OR
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Abstract
A headset for use in delivering electrical stimulation to the skin surface of the head or in sensing one or more body parameters of the head of a user.
Claims20
1-76. (canceled)
An electrode system for stimulation of the anterior portion of the head of a user, the system comprising a first anterior electrode and a second anterior electrode, each of said first and second anterior electrodes having a first end, a second end, a height, and a length, wherein:
- said heights of said first and said second anterior electrodes, at a maximal point thereof, being in the range of 10 mm to 40 mm,
- said first and second anterior electrodes are configured to be arranged, when disposed on the user's head, horizontally alongside one another, such that said second end of said first anterior electrode is adjacent said first end of said second anterior electrode with a distance therebetween, said distance being in the range of 1 mm to 15 mm, and
- a length consisting of said length of said first electrode, said length of said second electrode, and said distance, is in the range of 20 mm to 55 mm.
An electrode system for stimulation of the occipital portion of the head of a user, the system comprising a first posterior electrode and a second posterior electrode, each of said first and second posterior electrodes having a first end, a second end, a height, and a length, wherein:
- said heights of said first and said second posterior electrodes being in the range of 5 mm to 35 mm,
- said first and second posterior electrodes are configured to be arranged, which disposed on the user's head, horizontally alongside one another, such that said second end of said first posterior electrode is adjacent said first end of said second posterior electrode with a distance therebetween, said distance being in the range of 1 mm to 10 mm, and
- a length consisting of said length of said first electrode, said length of said second electrode, and said distance, is in the range of 10 mm to 55 mm.
A method for transdermally applying electrical stimulation to a region of the head of a user, the method comprising:
- (a) engaging at least two electrodes with a surface of the scalp of the user, said electrodes being functionally associated with an electronic circuit having a compliance voltage;
- (b) delivering via the engaged electrodes a balanced pulse comprising a positive phase train including a streak of constant current positive phases separated by rest times, said positive phase train immediately followed by a negative phase train including a streak of constant current negative phases separated by rest times, each of said positive phases and said negative phases is intended to provide a predetermined amount of charge to the head of the user, wherein:
- each of a first time ratio, between a cumulative duration of said rest times between said positive phases in said positive phase train and a cumulative duration of said positive phases, and a second time ratio, between a cumulative duration of said rest times between said negative phases in said negative phase train and a cumulative duration of said negative phases is smaller than a predetermined threshold ratio:
- said positive phases and said negative phases have a common phase width w1;
- and
- said rest times between immediate successor phases in said positive phase train and in said negative phase train having a common rest-time value rt1;
- (c) monitoring an amount of charge delivered by said positive phases and said negative phases, to identify a reduction of charge delivered by one or more of said positive and said negative phases;
- (d) upon identification of a said reduction, adapting said common rest time value rt1;
- and
- (e) repeating steps (b)-(d) until:
- said monitoring shows that said predetermined amount of charge has been provided by each of said positive and said negative phases;
- or
- at least one of said first time ratio and said second time ratio reaches said predetermined threshold ratio and a voltage of said balanced pulse reaches a predetermined voltage threshold.
(canceled)
Dependencies are inferred from the claim text.