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Method of forming a large number of metal-ion-deposition islands on the scalp by a rapid series of brief electrode-contact events

  • US 9,566,431 B2
  • Filed: 04/07/2014
  • Issued: 02/14/2017
  • Est. Priority Date: 04/07/2014
  • Status: Active Grant
First Claim
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1. A method of treating or preventing a hair-condition of a user, the user'"'"'s scalp dividable into a scalp-patch-set of n mm ×

  • n mm non-overlapping square scalp patches, n being a positive number having a value of at most 5, the method comprising;

    subjecting the user'"'"'s scalp to at least q distinct electrode-scalp contact events within a time-interval of at most one minute, the time interval being dividable into m non-overlapping equal-duration sub-intervals covering the time-interval, m being a positive integer having a value of at least 5, q being a positive integer having a value of at least 200, the method performed such that;

    i. for at least a majority of the electrode-scalp contact events, no electrode of the event enters into the dermis;

    ii. a duration of each electrode-scalp contact event is at most 100 milliseconds;

    iii. an electrode-scalp contact area for each electrode-scalp contact event is at most 10 mm2;

    iv. for each electrode-scalp contact event, an electrical current flows between the electrode and the scalp so as to deposit electrode-released ions of a first metal or of a second metal on the scalp, thereby forming a respective metal-ion-deposition island on the user'"'"'s scalp;

    v. for each of the m non-overlapping equal-duration sub-intervals, at least p electrode-scalp contact events occur, p being a positive integer having a value of at least 1;

    vi. at least 5% of the electrode-scalp contact events are first-metal-depositing and at least 5% of the electrode-scalp contact events are second-metal-depositing; and

    vii. at least one first-metal-deposition-island and at least one second-metal-deposition-island are both respectively and distinctly formed on each n mm ×

    n mm scalp scalp-patch selected from a 10-member scalp-patch sub-set of the scalp-patch set.

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