§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
EP0230749A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Therapeutic device for iontophoresing cation and anion

Assignee: Individual
•
Filing: 1986-12-15
•
Granted: —
•
Expires: 2006-12-15
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A therapeutic device for iontophoresing cation and anion comprises oscillating means (A) for generating a low-frequency current in which an undirectional current is superposed on a dc current; means (S) for switching at time intervals the output polarity of said oscillating means; and electrode means (P) which contains an ionized medicament and acts as the active electrode; and further electrode means (E) which acts as the dispersive electrode. A high efficacy which is difficult to attain by iontophoresing either cation or anion alone is possible by allowing the whole of an ionized medicament such as aminovinyl photosensitizing dye or kojic acid to penetrate into the deeper part of the skin with the therapeutic device disclosed.

Inventors

  • 👤 Kazumi Masaki

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 09:49
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/0404; A61N1/0408; A61N1/0428; A61N1/18; A61N1/20; A61N1/30; A61N1/303; A61N1/32; A61N1/325; A61N1/0432; A61N1/0436

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 69 words
A theraprutic device for iontophoresis of both cation and anion, comprising: means (A) for oscillating a low-frequency current in which an unidirectional current is superposed on a dc current; means (S) for switching at time intervals the output polarity of said oscillating means; an electrode means (P) which contains an ionized medicament and acts as the active electrode; and further electrode means (E) which acts as the dispersive electrode.
Claim 2
Dependent Claim 69 words
A theraprutic device for iontophoresis of both cation and anion, comprising: means (A) for oscillating a low-frequency current in which an unidirectional current is superposed on a dc current; means (S) for switching at time intervals the output polarity of said oscillating means; an electrode means (P) which contains an ionized medicament and acts as the active electrode; and further electrode means (E) which acts as the dispersive electrode.
Claim 3
Dependent Claim 17 words
A device as claimed in Claim 1, wherein said switching means (S) is a manually-operable switch (S₁,S₂).
Claim 4
Dependent Claim 17 words
A device as claimed in Claim 1, wherein said switching means (S) comprises an automatically-operable switch (S₃).
Claim 5
Independent Claim 29 words
A device as claimed in any of Claims 1 to 3, wherein said medicament is a member selected from the group consisting of aminovinyl photosensitizing dye and kojic acid.

References Cited (Backward Citations)

FR2307554A1 Cited
FR2439024A1 Cited
DE3127231A1 Cited
FR2539622A1 Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag