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WO2007025358A2 - Implantable prothesis with silicone foam surface - Google Patents

Implantable prothesis with silicone foam surface Download PDF

Info

Publication number
WO2007025358A2
WO2007025358A2 PCT/BR2006/000128 BR2006000128W WO2007025358A2 WO 2007025358 A2 WO2007025358 A2 WO 2007025358A2 BR 2006000128 W BR2006000128 W BR 2006000128W WO 2007025358 A2 WO2007025358 A2 WO 2007025358A2
Authority
WO
WIPO (PCT)
Prior art keywords
prosthesis
silicone foam
silicone
foam surface
implantable
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
Application number
PCT/BR2006/000128
Other languages
French (fr)
Other versions
WO2007025358A3 (en
Inventor
J Wagenfuhr Junior
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of WO2007025358A2 publication Critical patent/WO2007025358A2/en
Publication of WO2007025358A3 publication Critical patent/WO2007025358A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • A61F2/0077—Special surfaces of prostheses, e.g. for improving ingrowth
    • 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
    • A61L27/14—Macromolecular materials
    • A61L27/18—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/56—Porous materials, e.g. foams or sponges

Definitions

  • This patent refers to prosthesis' surfaces.
  • the proposed invention is applicable to breast, chest, buttock, calf and other prosthesis which can be implanted into humans.
  • implants prosthesis
  • the most used biocompatible material is silicone, but it can be replaced by other materials, provided they're also biocompatible.
  • Prosthesis can be filled with other materials, such as silicone, saline solutions and oils, among others.
  • the figure in the annexe shows the silicone foam surface.
  • the foam's characteristic appearance and form which account for the advantages of this material, are not lost.
  • the biocompatible material is integrated into the prosthesis, which is made from the same raw material.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Medicinal Chemistry (AREA)
  • Dermatology (AREA)
  • Cardiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Prostheses (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Materials For Medical Uses (AREA)

Abstract

Implantable prosthesis with surface made of biocompatible silicone foam, which is integrated into the prosthesis and features foam's characteristics and form.

Description

"IMPLANTABLE PROSTHESIS WITH SILICONE FOAM SURFACE"
This patent refers to prosthesis' surfaces. The proposed invention is applicable to breast, chest, buttock, calf and other prosthesis which can be implanted into humans. There's a wide variety of implants (prosthesis) for human use. The most used biocompatible material is silicone, but it can be replaced by other materials, provided they're also biocompatible. Prosthesis can be filled with other materials, such as silicone, saline solutions and oils, among others.
Today, implantable prosthesis with smooth, rough and polyurethane-coated surfaces are available worldwide.
Some studies demonstrated that polyurethane-coated prosthesis were associated with smaller capsular contraction rates.
On the other hand, other studies concerning these prosthesis affirmed that the coating material peels with the passing of time, thus making the prosthesis' surface smooth and showing the same capsular contraction rate.
Another fact that must be taken into account is the deterioration of the polyurethane foam and consequent formation of 2,4 toluene diamine, a potentially carcinogenic substance which was found in the urine of a patient who had one of these prosthesis implanted (BIRDSELL, CHAN, GRADEEN 1991). The author proposes implantable prosthesis with silicone foam surface because it's a more inert material if compared with polyurethane. Besides, unlike polyurethane surfaces, the silicone surface is not stuck to a smooth surface: it's integrated into the structure of the prosthesis.
The figure in the annexe shows the silicone foam surface. In this case, the foam's characteristic appearance and form, which account for the advantages of this material, are not lost. Besides, as it was previously mentioned, the biocompatible material is integrated into the prosthesis, which is made from the same raw material.
CHAN, S.C, BIRDSELL, D.C., GRADEEN, C.Y., Urinary excretion of free toluenodiamines in a patient with polyurethane - Covered breast implants. Clin. Chem. 1991 , 37 (12) 2143-2145

Claims

CLAIM
1. Implantable prosthesis with silicone foam surface characterized for presenting the silicone foam surface.
2. Silicone foam surface made of biocompatible silicone foam, which is integrated into the prosthesis structure and features foam's characteristics and form.
3. Silicone foam characterized for presenting the same characteristics to this type of existing structure with surface of polyurethane in implantable prosthesis with silicone.
PCT/BR2006/000128 2005-08-30 2006-06-28 Implantable prothesis with silicone foam surface Ceased WO2007025358A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRPI0503603-8 2005-08-30
BRPI0503603 BRPI0503603A (en) 2005-08-30 2005-08-30 silicone foam foam implantable prostheses

Publications (2)

Publication Number Publication Date
WO2007025358A2 true WO2007025358A2 (en) 2007-03-08
WO2007025358A3 WO2007025358A3 (en) 2007-05-18

Family

ID=37809214

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2006/000128 Ceased WO2007025358A2 (en) 2005-08-30 2006-06-28 Implantable prothesis with silicone foam surface

Country Status (2)

Country Link
BR (1) BRPI0503603A (en)
WO (1) WO2007025358A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140242258A1 (en) * 2010-08-20 2014-08-28 Allergan, Inc. Implantable materials
EP2502602A4 (en) * 2009-11-19 2016-02-17 Won-Seok Yu Artificial breast implant having a surface formed into a silicon open cell foam layer, and method for manufacturing same
WO2023000068A1 (en) * 2021-07-20 2023-01-26 Favaretto Estefano Luiz Hybrid or mixed silicone mammary prosthesis with smooth or microtextured surface with polyurethane coating

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5282856A (en) * 1987-12-22 1994-02-01 Ledergerber Walter J Implantable prosthetic device
US4859712A (en) * 1988-10-12 1989-08-22 Cox-Uphoff International Silicone foam and method for making it
US5354338A (en) * 1991-02-22 1994-10-11 Ledergerber Walter J Texturized covering for implants
US5480430A (en) * 1993-06-04 1996-01-02 Mcghan Medical Corporation Shape-retaining shell for a fluid filled prosthesis

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2502602A4 (en) * 2009-11-19 2016-02-17 Won-Seok Yu Artificial breast implant having a surface formed into a silicon open cell foam layer, and method for manufacturing same
US20140242258A1 (en) * 2010-08-20 2014-08-28 Allergan, Inc. Implantable materials
WO2023000068A1 (en) * 2021-07-20 2023-01-26 Favaretto Estefano Luiz Hybrid or mixed silicone mammary prosthesis with smooth or microtextured surface with polyurethane coating

Also Published As

Publication number Publication date
BRPI0503603A (en) 2007-05-15
WO2007025358A3 (en) 2007-05-18

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