CA2129242A1 - Method and apparatus for controlled environment electrotransport - Google Patents

Method and apparatus for controlled environment electrotransport

Info

Publication number
CA2129242A1
CA2129242A1 CA002129242A CA2129242A CA2129242A1 CA 2129242 A1 CA2129242 A1 CA 2129242A1 CA 002129242 A CA002129242 A CA 002129242A CA 2129242 A CA2129242 A CA 2129242A CA 2129242 A1 CA2129242 A1 CA 2129242A1
Authority
CA
Canada
Prior art keywords
electrotransport
methods
control
arrangement
active electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002129242A
Other languages
French (fr)
Other versions
CA2129242C (en
Inventor
Joseph Bradley Phipps
Lyn Cammarano Moodie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alza Corp
Original Assignee
Joseph Bradley Phipps
Lyn Cammarano Moodie
Medtronic, Inc.
Alza Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US07/502,232 priority Critical patent/US5125894A/en
Priority to AU13593/92A priority patent/AU1359392A/en
Priority to PCT/US1992/000796 priority patent/WO1993014813A1/en
Priority to DE69218629T priority patent/DE69218629T2/en
Priority to EP92905287A priority patent/EP0625061B1/en
Priority to CA002129242A priority patent/CA2129242C/en
Priority to JP50573692A priority patent/JP3368322B2/en
Application filed by Joseph Bradley Phipps, Lyn Cammarano Moodie, Medtronic, Inc., Alza Corporation filed Critical Joseph Bradley Phipps
Publication of CA2129242A1 publication Critical patent/CA2129242A1/en
Priority to US08/173,149 priority patent/US5443442A/en
Priority to US08/451,119 priority patent/US5622530A/en
Priority to US08/452,403 priority patent/US5591124A/en
Application granted granted Critical
Publication of CA2129242C publication Critical patent/CA2129242C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/02Details
    • A61N1/04Electrodes
    • A61N1/0404Electrodes for external use
    • A61N1/0408Use-related aspects
    • A61N1/0428Specially adapted for iontophoresis, e.g. AC, DC or including drug reservoirs
    • A61N1/0432Anode and cathode
    • A61N1/044Shape of the electrode
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/02Details
    • A61N1/04Electrodes
    • A61N1/0404Electrodes for external use
    • A61N1/0408Use-related aspects
    • A61N1/0428Specially adapted for iontophoresis, e.g. AC, DC or including drug reservoirs
    • A61N1/0448Drug reservoir
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/02Details
    • A61N1/04Electrodes
    • A61N1/0404Electrodes for external use
    • A61N1/0408Use-related aspects
    • A61N1/0428Specially adapted for iontophoresis, e.g. AC, DC or including drug reservoirs
    • A61N1/0432Anode and cathode
    • A61N1/0436Material of the electrode
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/02Details
    • A61N1/04Electrodes
    • A61N1/0404Electrodes for external use
    • A61N1/0408Use-related aspects
    • A61N1/0428Specially adapted for iontophoresis, e.g. AC, DC or including drug reservoirs
    • A61N1/0444Membrane

Abstract

Methods for conducting controlled environment electrotransport are described.
The methods generally concern control of the ionic environment of the active electrode reservoir, in an electrotransport system. This control may be utilized, for example, to maintain a constant extraneous ion presence, such as pH. It may also be applied in a preferred manner to maintain selected con-trol over the delivery rate of a target species, in time, in the presence of extraneous ions. Apparatus usable to provide for con-trolled environment electrotransport are also described. In general the apparatus comprises an electrotransport system (5) includ-ing an active electrode reservoir (6) having therein both a primary electrode arrangement (30) and a secondary electrode arrange-ment (50), with a control arrangement (40) for selected operation of both. The secondary electrode arrangement (50), being operated different from the primary electrode arrangement (30), is selected for operation to selectively enhance or otherwise mod-ify ion presence in the active electrode reservoir (6), to achieve application of the general methods described. The apparatus may include a sensor means (60) therein, for use as feedback to a control system (40) during operation. Methods and systems involv-ing diffusion type delivery are also described.
CA002129242A 1990-03-30 1992-02-03 Method and apparatus for controlled environment electrotransport Expired - Lifetime CA2129242C (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US07/502,232 US5125894A (en) 1990-03-30 1990-03-30 Method and apparatus for controlled environment electrotransport
DE69218629T DE69218629T2 (en) 1990-03-30 1992-02-03 DEVICE FOR REGULATED IONTOPHORESIS
EP92905287A EP0625061B1 (en) 1990-03-30 1992-02-03 Apparatus for controlled iontophoresis
CA002129242A CA2129242C (en) 1990-03-30 1992-02-03 Method and apparatus for controlled environment electrotransport
JP50573692A JP3368322B2 (en) 1990-03-30 1992-02-03 Controlled ion introduction method and apparatus
PCT/US1992/000796 WO1993014813A1 (en) 1990-03-30 1992-02-03 Method and apparatus for controlled iontophoresis
AU13593/92A AU1359392A (en) 1990-03-30 1992-02-03 Method and apparatus for controlled iontophoresis
US08/173,149 US5443442A (en) 1990-03-30 1993-12-22 Method and apparatus for controlled environment electrotransport
US08/451,119 US5622530A (en) 1990-03-30 1995-05-26 Method and apparatus for controlled environment electrotransport
US08/452,403 US5591124A (en) 1990-03-30 1995-05-26 Method and apparatus for controlled environment electrotransport

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/502,232 US5125894A (en) 1990-03-30 1990-03-30 Method and apparatus for controlled environment electrotransport
CA002129242A CA2129242C (en) 1990-03-30 1992-02-03 Method and apparatus for controlled environment electrotransport
PCT/US1992/000796 WO1993014813A1 (en) 1990-03-30 1992-02-03 Method and apparatus for controlled iontophoresis

Publications (2)

Publication Number Publication Date
CA2129242A1 true CA2129242A1 (en) 1993-08-05
CA2129242C CA2129242C (en) 2001-12-25

Family

ID=25677410

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002129242A Expired - Lifetime CA2129242C (en) 1990-03-30 1992-02-03 Method and apparatus for controlled environment electrotransport

Country Status (7)

Country Link
US (4) US5125894A (en)
EP (1) EP0625061B1 (en)
JP (1) JP3368322B2 (en)
AU (1) AU1359392A (en)
CA (1) CA2129242C (en)
DE (1) DE69218629T2 (en)
WO (1) WO1993014813A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6330471B1 (en) 1996-03-17 2001-12-11 Hisamitsu Pharmaceutical Co., Ltd. Iontophoresis electrode device

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US5443442A (en) 1995-08-22
US5125894A (en) 1992-06-30
CA2129242C (en) 2001-12-25
JPH07502905A (en) 1995-03-30
WO1993014813A1 (en) 1993-08-05
EP0625061B1 (en) 1997-03-26
DE69218629D1 (en) 1997-04-30
US5591124A (en) 1997-01-07
EP0625061A1 (en) 1994-11-23
DE69218629T2 (en) 1997-07-31
US5622530A (en) 1997-04-22
JP3368322B2 (en) 2003-01-20
AU1359392A (en) 1993-09-01

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