Switch for iontophoresing cation and anion

• US 4,792,702 A
• Filed: 10/07/1987
• Issued: 12/20/1988
• Est. Priority Date: 10/11/1986
• Status: Expired due to Fees

• Current Assignee: Ken Hayashibara
• Original Assignee: Ken Hayashibara
• Inventors: Masaki, Kazumi
• Primary Examiner(s): Shoop, Jr., William M.
• Assistant Examiner(s): IP, SHIK LUEN PAUL
• Application Number:
  US07/105,328
• Time in Patent Office: 440 Days
• Field of Search: 307/38, 307/130, 307/131 R, 307/132 R, 307/141, 307/141.4, 307/138, 307/139, 307/112, 307/127, 200/38 R, 200/37 R, 200/37 A, 200/38 A, 200/38 F, 200/38 FA, 200/38 FB, 200/38 B, 200/38 BA, 200/38 CA, 200/38 D, 200/304, 200/330, 200/11 G, 361/245, 361/246, 128/419 R, 128/639, 128/798, 128/803, 128/802, 128/795, 604/20
• US Class Current: 307/112
• CPC Class Codes: A61N 1/0428 Specially adapted for iontophoresis, e.g. AC, DC or including drug reservoirs
• CPC Class Codes: A61N 1/325 for iontophoresis, i.e. transfer of media in ionic state by an electromotoric force into the body electrodes for external use A61N1/0428
• CPC Class Codes: H01H 19/62 Contacts actuated by radial cams

Abstract

Disclosed is a novel switch for iontophoresing cation and anion, comprising an on/off switch for power circuit; a selector switch for reversing the output current from an iontophoretic low-frequency oscillator; and a rotary member actuating said on/off- and selector-switches when turned.

Claims

1. A switch directed to use in a low-frequency oscillator to iontophorese 6-[2-[(5-bromo-2-pyridyl) amino] vinyl]-1-ethyl-2-picolinium iodide into the scalp, comprising:

an on/off switch to control a power circuit of an iontophoretic low-frequency oscillator;

a selector switch to reverse an output current from said iontophoretic low-frequency oscillator in such manner that a positive potential and a negative potential energize an electrode containing 6-[2-[(5-bromo-2-pyridyl) amino] vinyl]-1-ethyl-2-picolinium iodine at a duration ratio of 1;

2 or 1;

3 during one selection cycle; and

a rotary member actuating said on/off- and selector-switches when turned.

2. The switch of claim 1, wherein said rotary member comprises a plurality of cam plate provided on a rotary shaft, said cam plates actuating sain on/off- and selector-switches when turned.

3. The switch of claim 1, wherein said rotary member comprises a rotary disc including a plurality of contact terminal radially provided on the surface of said rotary disc, said rotary disc actuating slidable pieces of said on/off- and selector-switches when turned, said slidable pieces being provided in contact with said rotary disc.

4. The switch of claim 1, wherein said rotary member comprises a rotary cylinder including a plurality of contact terminal provided on the circumferential surface of said rotary cylinder, said rotary cylinder actuating slidable pieces of said on/off- and selector-switches when turned, said slidable pieces being provided in contact with the circumferential surface of said rotary cylinder.