IP Library Granted Patent US 7,399,483
Granted Patent B2
US 7,399,483 · App. 11/211,686 · Granted Jul 15, 2008

Carrier with solid fibrinogen and solid thrombin

Assignee: Nycomed Pharma AS
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Quick Facts
Patent No.
US 7,399,483
App. No.
11/211,686
Granted
Jul 15, 2008
Kind
B2
Abstract

The present invention relates to a solid composition useful for tissue gluing, tissue sealing and haemostasis consisting essentially of a) a carrier which has at least one of the following physical properties: elasticity module in the range of 5-100 N/cm, density of 1-10 mg/cm 3 , chamber diameter of more than 0.75 mm and less than 4 mm and/or having a chamber diameter average below 3 mm and evenly distributed and fixed upon said carrier, b) solid fibrinogen, and c) solid thrombin. The carrier is a biodegradable polymer such as a polyhyaluronic acid, polyhydroxy acid, e.g. lactic acid, glucolic acid, hydroxybutanoic acid, a cellulose, gelatine or collagen, such as a collagen sponge, e.g. a collagen sponge consisting essentially of collagen type I fibres. The fibrinogen and thrombin are preferably human, purified from a natural source, or transgenic or recombinant human fibrinogen and/or thrombin. In a preferred embodiment the composition does not comprise any antifibronolytic agent such as aprotinin, ε-aminocaproic acid or α2-antiplasmin.

Claims (12)

1. A carrier coated with 4.3-6.7 mg fibrinogen/cm 2 and 1.5-2.5 I.U. thrombin/cm 2 , wherein said carrier has a strength of adhesion of about 84-110 mbar, said carrier having at least one of the following physical properties:

elasticity module in the range of 5-100 N/cm 2 ,

density of 1-10 mg/cm 3 ,

a chamber diameter of more than 0.75 mm and less than 4 mm, and

a chamber diameter average below 3 mm; wherein

said fibrinogen and said thrombin are solid fibrinogen and solid thrombin evenly distributed and fixed upon said carrier.

2. A carrier coated with 4.3-6.7 mg fibrinogen/cm 2 and 1.5-2.5 I.U. thrombin/cm 2 , wherein said carrier has a strength of adhesion of about 84-110 mbar, said carrier having at least two of the following physical properties:

elasticity module in the range of 5-100 N/cm 2 ,

density of 1-10 mg/cm 3 ,

a chamber diameter of more than 0.75 mm and less than 4 mm, and

a chamber diameter average below 3 mm; wherein

said fibrinogen and said solid thrombin are solid fibrinogen and solid thrombin evenly distributed and fixed upon said carrier.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 13, 2021
From: TAKEDA AS
To: TOPAZ INVESTMENT AS
Reel/Frame 057936/0082 →
CHANGE OF NAME Recorded Nov 9, 2016
From: TAKEDA NYCOMED AS
To: TAKEDA AS
Reel/Frame 040581/0301 →
CHANGE OF NAME Recorded Sep 4, 2013
From: NYCOMED PHARMA AS
To: TAKEDA NYCOMED AS
Reel/Frame 031157/0023 →
Priority Claims (1)
DK 2001 00235 · Feb 13, 2001 · national
Continuity (4)
Continuation 1070243400 · Nov 7, 2003
Continuation 1005485300 · Jan 25, 2002
Provisional Application 6027091400 · Feb 26, 2001
Related Publication 20060193846A1 · Aug 31, 2006