WO1998029056A1 - Procede de traitement anti-abrasion pour protheses mammaires implantables et produits ainsi obtenus - Google Patents
Procede de traitement anti-abrasion pour protheses mammaires implantables et produits ainsi obtenus Download PDFInfo
- Publication number
- WO1998029056A1 WO1998029056A1 PCT/FR1997/002470 FR9702470W WO9829056A1 WO 1998029056 A1 WO1998029056 A1 WO 1998029056A1 FR 9702470 W FR9702470 W FR 9702470W WO 9829056 A1 WO9829056 A1 WO 9829056A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gel
- bag
- silicone elastomer
- envelope
- gamma
- 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.)
- Ceased
Links
Classifications
-
- 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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/12—Mammary prostheses
-
- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/28—Materials for coating prostheses
- A61L27/34—Macromolecular materials
Definitions
- the present invention relates to an anti-abrasion treatment method for implantable breast prostheses, as well as the products thus obtained.
- Breast prostheses are most often made up of a silicone or other elastomer bag, inflatable thanks to a valve system, or filled with physiological saline before or after implantation.
- the breast prosthesis formed by an inflatable pocket was invented in 1965 by Doctor Henry Gilbert Arion.
- the pocket was made of cold polymerized "RTV" type elastomer.
- the materials used until today are not always perfectly tolerated by the receptor tissues, and above all the hydrophilic properties of their surface do not last beyond a more or less long period.
- the articles thus obtained may present, when normal pressure is applied for implantation, detachment of the polyurethane revealing an insufficiently polymerized silicone.
- the method according to the present invention aims to remedy this state of affairs. It makes it possible to produce implantable breast prostheses provided with an external surface which is perfectly resistant to abrasion for a very long period and which presents no risk of detachment or any trace of residual solvents.
- the method consists in making a silicone elastomer bag, filling it during the manufacture of a gel consisting of an organic product comprising at least one hydroxyl or aldehyde group and subjected to ionizing radiation, the outer layer of the envelope being, at the end of development, exposed to gamma and or beta radiation ensuring its complete polymerization.
- the breast prosthesis according to the invention consists of a pocket 1 of silicone elastomer, pre-filled with a gel 2 by means known at the time of manufacture, in contrast to the more conventional prostheses which are usually filled, or inflated, during implantation on the patient.
- the envelope of the bag 1 is conventionally manufactured by hot dip coating of a mandrel and hot polymerization, or by any other process. equivalent. This type of envelope is generally made in several successive layers 3, 4, 5, 6.
- the outer layer 6 preferably consists of a two-component silicone elastomer consisting of hydrogenated siloxane and a vinyl or phenyl radical catalyzed by platinum salts.
- this outer layer after a first phase of catalytic polymerization, is subjected to the action of gamma or beta radiation 7, for example from a cobalt 60 bomb, for a period sufficient to obtain complete polymerization of the outer layer 6.
- Gel 2 will advantageously be a hydrogel of suitable consistency obtained by exposing an organic product comprising at least one hydroxyl group, or at least one aldehyde group, to ionizing radiation, preferably of the gamma type, said organic product being dissolved before or after the exhibition.
Landscapes
- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Epidemiology (AREA)
- Dermatology (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Cardiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97953986A EP0967938A1 (fr) | 1996-12-31 | 1997-12-31 | Procede de traitement anti-abrasion pour protheses mammaires implantables et produits ainsi obtenus |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR96/16395 | 1996-12-31 | ||
| FR9616395A FR2757771B3 (fr) | 1996-12-31 | 1996-12-31 | Procede de traitement anti-abrasion pour protheses mammaires implantables et produits ainsi obtenus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998029056A1 true WO1998029056A1 (fr) | 1998-07-09 |
Family
ID=9499451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1997/002470 Ceased WO1998029056A1 (fr) | 1996-12-31 | 1997-12-31 | Procede de traitement anti-abrasion pour protheses mammaires implantables et produits ainsi obtenus |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0967938A1 (fr) |
| FR (1) | FR2757771B3 (fr) |
| WO (1) | WO1998029056A1 (fr) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2675049A1 (fr) * | 1991-04-09 | 1992-10-16 | Mas Jean Claude | Prothese mammaire implantable. |
| FR2677539A1 (fr) * | 1991-06-13 | 1992-12-18 | Mas Jean Claude | Prothese mammaire implantable avec revetement en mousse de polyurethane a base d'hexamethylene diisocyanate. |
| US5376117A (en) * | 1991-10-25 | 1994-12-27 | Corvita Corporation | Breast prostheses |
| FR2707499A1 (fr) * | 1993-04-30 | 1995-01-20 | Navatel Patrice | Procédé de formation de gels par action de rayons ionisants, et produits obtenus. |
-
1996
- 1996-12-31 FR FR9616395A patent/FR2757771B3/fr not_active Expired - Lifetime
-
1997
- 1997-12-31 EP EP97953986A patent/EP0967938A1/fr not_active Withdrawn
- 1997-12-31 WO PCT/FR1997/002470 patent/WO1998029056A1/fr not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2675049A1 (fr) * | 1991-04-09 | 1992-10-16 | Mas Jean Claude | Prothese mammaire implantable. |
| FR2677539A1 (fr) * | 1991-06-13 | 1992-12-18 | Mas Jean Claude | Prothese mammaire implantable avec revetement en mousse de polyurethane a base d'hexamethylene diisocyanate. |
| US5376117A (en) * | 1991-10-25 | 1994-12-27 | Corvita Corporation | Breast prostheses |
| FR2707499A1 (fr) * | 1993-04-30 | 1995-01-20 | Navatel Patrice | Procédé de formation de gels par action de rayons ionisants, et produits obtenus. |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2757771A1 (fr) | 1998-07-03 |
| FR2757771B3 (fr) | 1999-05-14 |
| EP0967938A1 (fr) | 2000-01-05 |
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