DE69334304D1 - Verfahren zur herstellung diagnostischer mittel aus mikrokapseln mit hyaluronsäure - Google Patents

Verfahren zur herstellung diagnostischer mittel aus mikrokapseln mit hyaluronsäure

Info

Publication number
DE69334304D1
DE69334304D1 DE69334304T DE69334304T DE69334304D1 DE 69334304 D1 DE69334304 D1 DE 69334304D1 DE 69334304 T DE69334304 T DE 69334304T DE 69334304 T DE69334304 T DE 69334304T DE 69334304 D1 DE69334304 D1 DE 69334304D1
Authority
DE
Germany
Prior art keywords
microspheres
wall
hyaluronic acid
diagnostic means
micro capsules
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 - Lifetime
Application number
DE69334304T
Other languages
English (en)
Inventor
Andrew Derek Sutton
Richard Alan Johnson
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.)
Quadrant Drug Delivery Ltd
Original Assignee
Quadrant Drug Delivery Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10723265&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69334304(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Quadrant Drug Delivery Ltd filed Critical Quadrant Drug Delivery Ltd
Application granted granted Critical
Publication of DE69334304D1 publication Critical patent/DE69334304D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/48Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005Wall or coating material
    • A61K9/5021Organic macromolecular compounds
    • A61K9/5052Proteins, e.g. albumin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/30Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/42Proteins; Polypeptides; Degradation products thereof; Derivatives thereof, e.g. albumin, gelatin or zein
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00Preparations for testing in vivo
    • A61K49/22Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00Preparations for testing in vivo
    • A61K49/22Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations
    • A61K49/222Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations characterised by a special physical form, e.g. emulsions, liposomes
    • A61K49/223Microbubbles, hollow microspheres, free gas bubbles, gas microspheres
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/14Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1605Excipients; Inactive ingredients
    • A61K9/1629Organic macromolecular compounds
    • A61K9/1658Proteins, e.g. albumin, gelatin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/48Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005Wall or coating material
    • A61K9/5021Organic macromolecular compounds
    • A61K9/5031Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poly(lactide-co-glycolide)
DE69334304T 1992-10-10 1993-10-08 Verfahren zur herstellung diagnostischer mittel aus mikrokapseln mit hyaluronsäure Expired - Lifetime DE69334304D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929221329A GB9221329D0 (en) 1992-10-10 1992-10-10 Preparation of further diagnostic agents

Publications (1)

Publication Number Publication Date
DE69334304D1 true DE69334304D1 (de) 2010-01-21

Family

ID=10723265

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69334304T Expired - Lifetime DE69334304D1 (de) 1992-10-10 1993-10-08 Verfahren zur herstellung diagnostischer mittel aus mikrokapseln mit hyaluronsäure
DE69333345T Revoked DE69333345T2 (de) 1992-10-10 1993-10-08 Verfahren zur herstellung von mikrokapseln

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69333345T Revoked DE69333345T2 (de) 1992-10-10 1993-10-08 Verfahren zur herstellung von mikrokapseln

Country Status (11)

Country Link
US (7) US6344182B1 (de)
EP (2) EP0663840B1 (de)
JP (2) JPH08505366A (de)
AT (2) ATE451127T1 (de)
CA (1) CA2146783C (de)
DE (2) DE69334304D1 (de)
DK (1) DK0663840T3 (de)
ES (2) ES2214477T3 (de)
GB (4) GB9221329D0 (de)
HK (3) HK1007959A1 (de)
WO (1) WO1994008627A1 (de)

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GB2302650A (en) 1997-01-29
US6344182B1 (en) 2002-02-05
GB9616116D0 (en) 1996-09-11
EP0663840B1 (de) 2003-12-10
GB2286122A (en) 1995-08-09
US6939530B2 (en) 2005-09-06
DE69333345T2 (de) 2004-10-07
GB2302650B (en) 1997-04-09
US5957848A (en) 1999-09-28
HK1007959A1 (en) 1999-04-30
GB2286122B (en) 1997-04-09
DE69333345D1 (de) 2004-01-22
EP1226832A3 (de) 2004-01-02
ATE451127T1 (de) 2009-12-15
GB9507191D0 (en) 1995-05-31
EP1226832A2 (de) 2002-07-31
ATE255911T1 (de) 2003-12-15
EP1226832B1 (de) 2009-12-09
HK1007958A1 (en) 1999-04-30
ES2214477T3 (es) 2004-09-16
US6416741B1 (en) 2002-07-09
JPH08505366A (ja) 1996-06-11
DK0663840T3 (da) 2004-03-29
JP2006273874A (ja) 2006-10-12
HK1007960A1 (en) 1999-04-30
WO1994008627A1 (en) 1994-04-28
GB2302649A (en) 1997-01-29
CA2146783A1 (en) 1994-04-28
CA2146783C (en) 2009-05-26
GB2302649B (en) 1997-04-09
GB9616117D0 (en) 1996-09-11
US20050238586A1 (en) 2005-10-27
US6348186B1 (en) 2002-02-19
EP0663840A1 (de) 1995-07-26
ES2356372T3 (es) 2011-04-07
GB9221329D0 (en) 1992-11-25
US20030133876A1 (en) 2003-07-17
US6015546A (en) 2000-01-18

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