GB942226A - Article and the preparation thereof - Google Patents
Article and the preparation thereofInfo
- Publication number
- GB942226A GB942226A GB3826561A GB3826561A GB942226A GB 942226 A GB942226 A GB 942226A GB 3826561 A GB3826561 A GB 3826561A GB 3826561 A GB3826561 A GB 3826561A GB 942226 A GB942226 A GB 942226A
- Authority
- GB
- United Kingdom
- Prior art keywords
- collagen
- mass
- acid
- dispersion
- series
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/425—Porous materials, e.g. foams or sponges
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/32—Proteins, polypeptides; Degradation products or derivatives thereof, e.g. albumin, collagen, fibrin, gelatin
- A61L15/325—Collagen
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Epidemiology (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dispersion Chemistry (AREA)
- Peptides Or Proteins (AREA)
- Materials For Medical Uses (AREA)
Abstract
A method of making a collagen sponge, having interconnected pores, comprises freezing an aqueous dispersion of collagen fibres, removing the water by immersing the frozen mass in a water-miscible, dehydrating solvent, and drying the resulting collagen mass. The dehydrating bath contains sufficient quantity of a base, such as ammonium hydroxide, to neutralize the acid present in the collagen dispersion. In one example, cattle tendon is cleaned and sliced and then treated with an enzyme solution to dissolve elastin. It is then swollen by the addition of cyano-acetic acid and forced through a series of screens. After being frozen in steel moulds the blocks are removed and immersed in a series of baths of isopropanol containing a small proportion of ammonium hydroxide, to dehydrate the mass, which is finally air dried. Acetic acid, cyanoacetic acid and lactic acid are referred to as suitable for use in producing the collagen dispersion and either acetone or isopropanol may be used for dehydration.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6470360A | 1960-10-25 | 1960-10-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB942226A true GB942226A (en) | 1963-11-20 |
Family
ID=22057741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3826561A Expired GB942226A (en) | 1960-10-25 | 1961-10-25 | Article and the preparation thereof |
Country Status (2)
Country | Link |
---|---|
BR (1) | BR6133695D0 (en) |
GB (1) | GB942226A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2108068A1 (en) * | 1970-09-29 | 1972-05-12 | Fmc Corp | |
FR2393581A1 (en) * | 1977-06-09 | 1979-01-05 | Pikok Ind Trading Co | PROCESS FOR PREPARING A COLLAGEN-BASED DRESSING FOR THE SKIN, AND DRESSINGS OBTAINED |
FR2449400A1 (en) * | 1979-02-21 | 1980-09-19 | Pfrimmer Pharma | PROCESS FOR OBTAINING STOCKABLE GRAFTS |
EP0419111A1 (en) * | 1989-09-15 | 1991-03-27 | Organogenesis Inc. | Collagen compositions and methods for preparation thereof |
EP2459244A1 (en) * | 2009-07-27 | 2012-06-06 | National Cheng Kung University | Method for preparing porous collagen matrices |
CN105343928A (en) * | 2015-11-30 | 2016-02-24 | 江南大学 | Technology for preparing collagen sponge |
-
1961
- 1961-10-25 GB GB3826561A patent/GB942226A/en not_active Expired
- 1961-10-25 BR BR13369561A patent/BR6133695D0/en unknown
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2108068A1 (en) * | 1970-09-29 | 1972-05-12 | Fmc Corp | |
FR2393581A1 (en) * | 1977-06-09 | 1979-01-05 | Pikok Ind Trading Co | PROCESS FOR PREPARING A COLLAGEN-BASED DRESSING FOR THE SKIN, AND DRESSINGS OBTAINED |
FR2449400A1 (en) * | 1979-02-21 | 1980-09-19 | Pfrimmer Pharma | PROCESS FOR OBTAINING STOCKABLE GRAFTS |
US4300243A (en) * | 1979-02-21 | 1981-11-17 | Pfrimmer & Co., Pharmazeutische Werke Erlangen Gmbh | Process for the preparation of preserved transplants |
EP0419111A1 (en) * | 1989-09-15 | 1991-03-27 | Organogenesis Inc. | Collagen compositions and methods for preparation thereof |
EP2459244A1 (en) * | 2009-07-27 | 2012-06-06 | National Cheng Kung University | Method for preparing porous collagen matrices |
EP2459244A4 (en) * | 2009-07-27 | 2012-12-19 | Univ Nat Cheng Kung | Method for preparing porous collagen matrices |
CN105343928A (en) * | 2015-11-30 | 2016-02-24 | 江南大学 | Technology for preparing collagen sponge |
Also Published As
Publication number | Publication date |
---|---|
BR6133695D0 (en) | 1973-06-14 |
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