GB1414812A - Device for sustained release of drugs and like active agents - Google Patents

Device for sustained release of drugs and like active agents

Info

Publication number
GB1414812A
GB1414812A GB4336972A GB4336972A GB1414812A GB 1414812 A GB1414812 A GB 1414812A GB 4336972 A GB4336972 A GB 4336972A GB 4336972 A GB4336972 A GB 4336972A GB 1414812 A GB1414812 A GB 1414812A
Authority
GB
United Kingdom
Prior art keywords
container
medicament
liquid
ethylene
vinyl acetate
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.)
Expired
Application number
GB4336972A
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
Alza Corp
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 claimed from US185208A external-priority patent/US3896819A/en
Priority claimed from US00281445A external-priority patent/US3845761A/en
Application filed by Alza Corp filed Critical Alza Corp
Publication of GB1414812A publication Critical patent/GB1414812A/en
Expired 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
    • A61K9/0087—Galenical forms not covered by A61K9/02 - A61K9/7023
    • A61K9/0092—Hollow drug-filled fibres, tubes of the core-shell type, coated fibres, coated rods, microtubules or nanotubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F6/00—Contraceptive devices; Pessaries; Applicators therefor
    • A61F6/06—Contraceptive devices; Pessaries; Applicators therefor for use by females
    • A61F6/14—Contraceptive devices; Pessaries; Applicators therefor for use by females intra-uterine type
    • A61F6/142—Wirelike structures, e.g. loops, rings, spirals
    • A61F6/144—Wirelike structures, e.g. loops, rings, spirals with T-configuration
    • 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
    • A61K9/0012—Galenical forms characterised by the site of application
    • A61K9/0034—Urogenital system, e.g. vagina, uterus, cervix, penis, scrotum, urethra, bladder; Personal lubricants
    • A61K9/0036—Devices retained in the vagina or cervix for a prolonged period, e.g. intravaginal rings, medicated tampons, medicated diaphragms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
    • A61M31/002—Devices for releasing a drug at a continuous and controlled rate for a prolonged period of time

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medicinal Chemistry (AREA)
  • Reproductive Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Gynecology & Obstetrics (AREA)
  • Vascular Medicine (AREA)
  • Urology & Nephrology (AREA)
  • Nanotechnology (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Medicinal Preparation (AREA)

Abstract

1414812 Sustained release medicaments ALZA CORP 19 Sept 1972 [30 Sept 1971 17 Aug 1972] 43369/72 Addition to 1333576 Heading A5B A device which delivers a medicament at a substantially constant rate over a prolonged period of time comprises a sealed container containing a solid medicament and a liquid in which it is sparingly soluble, the container being composed, at least partially, of a material through which the medicament diffuses at a rate slower than that at which it can be dissolved by the liquid and transported to the inner face of the container wall (this being the sole mode of release of medicament). The container material may be one through which the medicament will diffuse or it may be a microporous material, the pores of which are filled with a liquid through which the medicament diffuses. A very wide range of medicaments. liquids and container materials are specified, the latter being chiefly various natural and synthetic polymers. Examples relate to contraceptive implants and intra-uterine devices comprising a hormone, e.g. progesterone, and a liquid e.g. asilicone oil, aqueous polyvinyl pyrrolidone or aqueous carboxymethylcellulose enclosed within a container composed essentially of polyethylene, ethylene/vinyl acetate copolymer or cured silicone; cortisone and aqueous methyl cellulose in an ethylene/vinyl acetate elastomer container; phenagocine HCL and water in a PVC, ethylene/vinyl acetate copolymer or radiation cross-linked poly(cis-1, 4-polyisoprene); pilocarpine and an unspecified liquid in ethylene/vinyl acetate copolymer (ocular insert) and various shaped devices (polyethylene "band", polyethylene heart valve and polyamide suture) containing unspecified medicaments.
GB4336972A 1970-10-21 1972-09-19 Device for sustained release of drugs and like active agents Expired GB1414812A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB4997570 1970-10-21
US185208A US3896819A (en) 1969-04-01 1971-09-30 IUD having a replenishing drug reservoir
US00281445A US3845761A (en) 1970-06-02 1972-08-17 Intrauterine contraceptive anti-fertility device for the management of reproduction

Publications (1)

Publication Number Publication Date
GB1414812A true GB1414812A (en) 1975-11-19

Family

ID=27260131

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4336972A Expired GB1414812A (en) 1970-10-21 1972-09-19 Device for sustained release of drugs and like active agents

Country Status (1)

Country Link
GB (1) GB1414812A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122086A (en) * 1982-06-22 1984-01-11 Univ Glasgow Device for introducing nutrients and/or therapeutic materials into ruminant animals
EP0126537A2 (en) * 1983-04-15 1984-11-28 Damon Biotech, Inc. Sustained release capsule and process of making it
US4690682A (en) * 1983-04-15 1987-09-01 Damon Biotech, Inc. Sustained release
US4923645A (en) * 1987-11-16 1990-05-08 Damon Biotech, Inc. Sustained release of encapsulated molecules
WO1997004818A2 (en) * 1995-07-29 1997-02-13 Lts Lohmann Therapie-Systeme Gmbh Transdermal therapeutic sysgtem for administering active agents to the human body via the skin
WO2006121969A1 (en) * 2005-05-09 2006-11-16 Boston Scientific Scimed, Inc. Medical devices for treating urological and uterine conditions
FR2895229A1 (en) * 2005-12-26 2007-06-29 Ancova Sa Recoverable intra-uterine device for use in field of in vivo or in utero fertilization, has housing with wall including series of perforations with size that is sufficient to bring intra-uterine medium in cellular contact with housing
EP1639972B1 (en) * 2001-08-01 2013-09-11 Anecova SA Intrauterine device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122086A (en) * 1982-06-22 1984-01-11 Univ Glasgow Device for introducing nutrients and/or therapeutic materials into ruminant animals
EP0126537A2 (en) * 1983-04-15 1984-11-28 Damon Biotech, Inc. Sustained release capsule and process of making it
EP0126537A3 (en) * 1983-04-15 1986-05-28 Damon Biotech, Inc. Sustained release capsule and process of making it
US4690682A (en) * 1983-04-15 1987-09-01 Damon Biotech, Inc. Sustained release
AU567155B2 (en) * 1983-04-15 1987-11-12 Damon Biotech Inc. Capsules for releasing core material at constant rate
US4923645A (en) * 1987-11-16 1990-05-08 Damon Biotech, Inc. Sustained release of encapsulated molecules
WO1997004818A2 (en) * 1995-07-29 1997-02-13 Lts Lohmann Therapie-Systeme Gmbh Transdermal therapeutic sysgtem for administering active agents to the human body via the skin
WO1997004818A3 (en) * 1995-07-29 1997-03-13 Lohmann Therapie Syst Lts Transdermal therapeutic sysgtem for administering active agents to the human body via the skin
US6074665A (en) * 1995-07-29 2000-06-13 Lts Lohmann Therapie-Systeme Gmbh Transdermal therapeutic system for administering active agents to the human body via the skin
EP1639972B1 (en) * 2001-08-01 2013-09-11 Anecova SA Intrauterine device
WO2006121969A1 (en) * 2005-05-09 2006-11-16 Boston Scientific Scimed, Inc. Medical devices for treating urological and uterine conditions
US7862552B2 (en) 2005-05-09 2011-01-04 Boston Scientific Scimed, Inc. Medical devices for treating urological and uterine conditions
FR2895229A1 (en) * 2005-12-26 2007-06-29 Ancova Sa Recoverable intra-uterine device for use in field of in vivo or in utero fertilization, has housing with wall including series of perforations with size that is sufficient to bring intra-uterine medium in cellular contact with housing
WO2007074409A2 (en) * 2005-12-26 2007-07-05 Anecova Sa Recoverable intra-uterine device
WO2007074409A3 (en) * 2005-12-26 2007-12-06 Anecova Sa Recoverable intra-uterine device

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Legal Events

Date Code Title Description
PS Patent sealed