CA2007462A1 - Dispensing devices powered by lyotropic liquid crystals - Google Patents

Dispensing devices powered by lyotropic liquid crystals

Info

Publication number
CA2007462A1
CA2007462A1 CA2007462A CA2007462A CA2007462A1 CA 2007462 A1 CA2007462 A1 CA 2007462A1 CA 2007462 A CA2007462 A CA 2007462A CA 2007462 A CA2007462 A CA 2007462A CA 2007462 A1 CA2007462 A1 CA 2007462A1
Authority
CA
Canada
Prior art keywords
lyotropic liquid
liquid crystals
dispensing devices
devices
devices powered
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
CA2007462A
Other languages
French (fr)
Other versions
CA2007462C (en
Inventor
William John Curatolo
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.)
Pfizer Inc
Original Assignee
William John Curatolo
Pfizer Limited
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
Application filed by William John Curatolo, Pfizer Limited filed Critical William John Curatolo
Publication of CA2007462A1 publication Critical patent/CA2007462A1/en
Application granted granted Critical
Publication of CA2007462C publication Critical patent/CA2007462C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/0002—Galenical forms characterised by the drug release technique; Application systems commanded by energy
    • A61K9/0004—Osmotic delivery systems; Sustained release driven by osmosis, thermal energy or gas

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Medicinal Preparation (AREA)
  • Liquid Crystal Substances (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Liquid Crystal (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Cosmetics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

This invention relates to devices useful for the controlled delivery of one or more beneficial agents to an environment of use. More specifically, this invention concerns such devices which are powered by lyotropic liquid crystals. This invention also relates to the controlled delivery of one or more beneficial agents to an aqueous environment of use through the use of such lyotropic liquid crystal powered dispensing devices. Also disclosed are methods for the controlled delivery of one or more beneficial agents to an aqueous environment of use which comprise administering to or otherwise placing the devices of this invention in the environment of use.
CA002007462A 1989-01-12 1990-01-10 Dispensing devices powered by lyotropic liquid crystals Expired - Fee Related CA2007462C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/296,458 US5030452A (en) 1989-01-12 1989-01-12 Dispensing devices powered by lyotropic liquid crystals
US296,458 1989-01-12

Publications (2)

Publication Number Publication Date
CA2007462A1 true CA2007462A1 (en) 1990-07-12
CA2007462C CA2007462C (en) 1994-03-01

Family

ID=23142091

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002007462A Expired - Fee Related CA2007462C (en) 1989-01-12 1990-01-10 Dispensing devices powered by lyotropic liquid crystals

Country Status (17)

Country Link
US (1) US5030452A (en)
EP (1) EP0378403B1 (en)
JP (1) JPH02229109A (en)
KR (1) KR920005809B1 (en)
AT (1) ATE103805T1 (en)
AU (1) AU611336B2 (en)
CA (1) CA2007462C (en)
DE (1) DE69007804T2 (en)
ES (1) ES2051465T3 (en)
FI (1) FI900152A (en)
HU (1) HUT54886A (en)
IE (1) IE900103L (en)
IL (1) IL92967A (en)
NO (3) NO900150L (en)
NZ (1) NZ232071A (en)
PT (1) PT92837A (en)
ZA (1) ZA90195B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5366738A (en) * 1982-07-29 1994-11-22 Merck & Co., Inc. Controlled release drug dispersion delivery device
US6361795B1 (en) * 1989-09-05 2002-03-26 Alza Corporation Method for lowering blood glucose
US5250082A (en) * 1991-01-04 1993-10-05 Development Center For Biotechnology Encapsulated structure for plant initiate material
WO1993006921A1 (en) * 1991-10-04 1993-04-15 Gs Biochem Ab Particles, method of preparing said particles and uses thereof
BR9206593A (en) * 1991-10-04 1995-11-28 Gs Biochem Ab Particles especially colloidal particles process of preparing them from a homogeneous liquid crystalline phase or L3 phase pharmaceutical composition and use of these particles
US5543154A (en) * 1991-12-27 1996-08-06 Merck & Co., Inc. Controlled release nifedipine delivery device
US5582838A (en) * 1994-12-22 1996-12-10 Merck & Co., Inc. Controlled release drug suspension delivery device
US6312703B1 (en) 1998-02-06 2001-11-06 Lecigel, Llc Compressed lecithin preparations
US6099859A (en) 1998-03-20 2000-08-08 Andrx Pharmaceuticals, Inc. Controlled release oral tablet having a unitary core
US6099862A (en) * 1998-08-31 2000-08-08 Andrx Corporation Oral dosage form for the controlled release of a biguanide and sulfonylurea
US20030086972A1 (en) * 2000-08-09 2003-05-08 Appel Leah E. Hydrogel-driven drug dosage form
JPWO2002064114A1 (en) * 2001-02-15 2004-06-10 株式会社三和化学研究所 New ophthalmic composition
MXPA04002980A (en) * 2001-09-28 2005-06-20 Johnson & Johnson Dosage forms having an inner core and outer shell with different shapes.
AU2002351008B2 (en) * 2001-11-30 2007-07-12 Pfizer Products Inc. Pharmaceutical compositions of 5,8,14-triazatetracyclo[10.3.1.0(2,11).0(4,9)]-hexadeca-2(11)3,5,7,9-pentaene
US20050170063A1 (en) * 2004-01-29 2005-08-04 Lalit Chordia Production of powder and viscous material
US20050196506A1 (en) * 2004-03-03 2005-09-08 Kraft Foods Holdings, Inc. Process of manufacturing low protein flour pasta

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3538214A (en) * 1969-04-22 1970-11-03 Merck & Co Inc Controlled release medicinal tablets
US3995631A (en) * 1971-01-13 1976-12-07 Alza Corporation Osmotic dispenser with means for dispensing active agent responsive to osmotic gradient
US3845770A (en) * 1972-06-05 1974-11-05 Alza Corp Osmatic dispensing device for releasing beneficial agent
US4077407A (en) * 1975-11-24 1978-03-07 Alza Corporation Osmotic devices having composite walls
US4111202A (en) * 1976-11-22 1978-09-05 Alza Corporation Osmotic system for the controlled and delivery of agent over time
US4180073A (en) * 1977-08-29 1979-12-25 Alza Corporation Device for delivering drug to biological environment
DE2856333C2 (en) * 1978-12-27 1983-09-22 A. Nattermann & Cie GmbH, 5000 Köln Oral medicines with anti-inflammatory effects
US4217898A (en) * 1978-10-23 1980-08-19 Alza Corporation System with microporous reservoir having surface for diffusional delivery of agent
US4350271A (en) * 1980-08-22 1982-09-21 Alza Corporation Water absorbing fluid dispenser
US4327725A (en) * 1980-11-25 1982-05-04 Alza Corporation Osmotic device with hydrogel driving member
US4439196A (en) * 1982-03-18 1984-03-27 Merck & Co., Inc. Osmotic drug delivery system
US4449983A (en) * 1982-03-22 1984-05-22 Alza Corporation Simultaneous delivery of two drugs from unit delivery device
SE8206744D0 (en) * 1982-11-26 1982-11-26 Fluidcarbon International Ab PREPARATION FOR CONTROLLED RELEASE OF SUBSTANCES
US4673405A (en) * 1983-03-04 1987-06-16 Alza Corporation Osmotic system with instant drug availability
US4765989A (en) * 1983-05-11 1988-08-23 Alza Corporation Osmotic device for administering certain drugs
NZ206600A (en) * 1983-05-11 1987-01-23 Alza Corp Osmotic drug delivery device
US4783337A (en) * 1983-05-11 1988-11-08 Alza Corporation Osmotic system comprising plurality of members for dispensing drug
GB2150830B (en) * 1983-12-05 1987-08-19 Alza Corp Drug dispenser
US4595583A (en) * 1984-03-19 1986-06-17 Alza Corporation Delivery system controlled administration of beneficial agent to ruminants
US4772474A (en) * 1985-08-09 1988-09-20 Alza Corporation Dispenser with internal arrangement of lamina means for dispensing beneficial agent
US4684524A (en) * 1984-03-19 1987-08-04 Alza Corporation Rate controlled dispenser for administering beneficial agent
US4678467A (en) * 1984-03-21 1987-07-07 Alza Corporation Dispenser comprising capsule with volume displacing member
US4615698A (en) * 1984-03-23 1986-10-07 Alza Corporation Total agent osmotic delivery system
CA1266827A (en) * 1984-06-20 1990-03-20 Merck & Co., Inc. Controlled porosity osmotic pump
US4761288A (en) * 1984-09-24 1988-08-02 Mezei Associates Limited Multiphase liposomal drug delivery system
US4608048A (en) * 1984-12-06 1986-08-26 Alza Corporation Dispensing device with drug delivery patterns
US4685918A (en) * 1985-02-01 1987-08-11 Merck & Co., Inc. Lipid osmotic pump
US4627971A (en) * 1985-04-22 1986-12-09 Alza Corporation Osmotic device with self-sealing passageway
US4666704A (en) * 1985-05-24 1987-05-19 International Minerals & Chemical Corp. Controlled release delivery system for macromolecules
GB8521494D0 (en) * 1985-08-29 1985-10-02 Zyma Sa Controlled release tablet
US4723957A (en) * 1986-02-07 1988-02-09 Alza Corp. System for delivering drug with enhanced bioacceptability
US4716496A (en) * 1986-05-09 1987-12-29 Eaton Corporation Panel-mounted control station housing
US4816264A (en) * 1986-06-06 1989-03-28 Warner-Lambert Company Sustained release formulations
DE3769707D1 (en) * 1986-06-17 1991-06-06 Recordati Chem Pharm THERAPEUTIC SYSTEM WITH REGULATED DELIVERY OF ACTIVE SUBSTANCES.
GB8616669D0 (en) * 1986-07-09 1986-08-13 Merk Sharpe & Dohme Ltd Pharmaceutical compositions
CH668187A5 (en) * 1986-08-07 1988-12-15 Ciba Geigy Ag THERAPEUTIC SYSTEM WITH SYSTEMIC EFFECT.
DE3629994A1 (en) * 1986-09-03 1988-03-17 Weissenbacher Ernst Rainer Pro Device for administration of medicaments in body cavities or on body surfaces
ATE72111T1 (en) * 1987-01-14 1992-02-15 Ciba Geigy Ag THERAPEUTIC SYSTEM FOR POORLY SOLUBLE ACTIVE INGREDIENTS.
US4859470A (en) * 1988-06-02 1989-08-22 Alza Corporation Dosage form for delivering diltiazem
US4902514A (en) * 1988-07-21 1990-02-20 Alza Corporation Dosage form for administering nilvadipine for treating cardiovascular symptoms

Also Published As

Publication number Publication date
AU4787690A (en) 1990-07-19
NO900152D0 (en) 1990-01-11
CA2007462C (en) 1994-03-01
FI900152A (en) 1990-07-13
NO900150D0 (en) 1990-01-11
FI900152A0 (en) 1990-01-11
NZ232071A (en) 1991-02-26
KR920005809B1 (en) 1992-07-20
NO900153L (en) 1990-07-13
HU900109D0 (en) 1990-03-28
ES2051465T3 (en) 1994-06-16
HUT54886A (en) 1991-04-29
NO900153D0 (en) 1990-01-11
JPH02229109A (en) 1990-09-11
KR900011485A (en) 1990-08-01
NO900152L (en) 1990-07-13
IE900103L (en) 1990-07-12
ATE103805T1 (en) 1994-04-15
AU611336B2 (en) 1991-06-06
EP0378403A2 (en) 1990-07-18
DE69007804D1 (en) 1994-05-11
IL92967A0 (en) 1990-09-17
ZA90195B (en) 1991-08-28
EP0378403A3 (en) 1990-10-17
NO900150L (en) 1990-07-13
EP0378403B1 (en) 1994-04-06
IL92967A (en) 1994-11-11
DE69007804T2 (en) 1994-09-01
US5030452A (en) 1991-07-09
PT92837A (en) 1990-07-31

Similar Documents

Publication Publication Date Title
AU615129B2 (en) Dispensing devices powered by hydrogel
AU611336B2 (en) Dispensing devices powered by lyotropic liquid crystals
AU3572300A (en) Liquid crystal compounds
DK238888D0 (en) ORAL ADMINISTRATES WITH RETARDED DELIVERY
AU2233688A (en) Liquid crystal electro-optical device
DE3854383D1 (en) Mesomorphic compound, liquid crystal composition and liquid crystal device.
FI934298A0 (en) CRYSTAL TIAGABINE HYDROCHLORIDE MONOHYDRATE, DESS FRAMSTAELLNING OCH DESS ANVAENDNING
IT8967672A0 (en) DRIVING DEVICE FOR PUMPS OR SIMILAR
DE3872116T2 (en) NEMATIC LIQUID CRYSTAL COMPOSITION.
EP0409999A4 (en) Liquid preparation for intraocular perfusion
AU2002302836A1 (en) Devices for controlling the administration of material such as medicine or blood

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed