US3665520A - Surgically implantable breast prosthesis - Google Patents

Surgically implantable breast prosthesis Download PDF

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Publication number
US3665520A
US3665520A US3665520DA US3665520A US 3665520 A US3665520 A US 3665520A US 3665520D A US3665520D A US 3665520DA US 3665520 A US3665520 A US 3665520A
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Prior art keywords
wall
container
prosthesis
back
breast
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Expired - Lifetime
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Colette Perras
Jacques Papillon
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Medical Engineering Corp
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Medical Engineering Corp
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/12Mammary prostheses and implants
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00Surgery
    • Y10S128/21Silicone

Abstract

A surgically implantable breast prosthesis formed from a flexible container having a front wall and a back wall; the front wall having an outer shape approximately that of the human breast and the back wall having a shape approximately that of the chest wall. The container includes a prolongation extending angularly outwardly toward the axilla region of the anatomy and overlying the pectoral muscle. The container is filled with a silicone gel and a fabric impregnated with the same material used to form the container is secured to the back wall to increase the rigidity of the back wall. A strip of Dacron felt is secured to the outer periphery of the back wall around the axilla prolongation and a small portion of the back wall of the container to support the prosthesis by tissue ingrowth into the Dacron felt.

Description

United States Patent Perras et al.

[ 51 May 30, 1972 [541 SURGICALLY IMPLANTABLE BREAST PROSTHESIS [72] Inventors: Colette Perras, Lacombe, Montreal; Jacques Papillon, St. Lambert, Montreal,

21 Appl. No.: 78,863

FOREIGN PATENTS OR APPLICATIONS 1,506,271 11/1967 France ..3/36 1,506,272 11/1967 France ..3/36

Primary Examiner-Richard A. Gaudet Assistant Examiner-Ronald L. Frinks Attomey-Ronald E. Barry and James E. Nilles 1 ABSIRACT A surgically implantable breast prosthesis formed from a flexible container having a front wall and a back wall; the front wall having an outer shape approximately that of the human breast and the back wall having a shape approximately that of the chest wall. The container includes a prolongation extending angularly outwardly toward the axilla region of the anatomy and overlying the pectoral muscle. The container is filled with a silicone gel and a fabric impregnated with the same material used to form the container is secured to the back wall to increase the rigidity of the back wall. A strip of Dacron felt is secured to the outer periphery of the back wall around the axilla prolongation and a small portion of the back wall of the container to support the prosthesis by tissue ingrowth into the Dacron felt.

12 Claims, 4 Drawing Figures SURGICALLY IMPLANTABLE BREAST PROSTHESIS BACKGROUND OF THE INVENTION Gel-filled silicone rubber breast prostheses have been employed for anumber of years to maintain the natural appearance of the breast. The most common breast prostheses of the gel filled type is shown in U. S. Pat. No. 3,293,663 issued to T. D. Cronin on Dec. 27, 1966. This prosthesis included a flexible container having an outer peripheral ridge and a fabric material secured to the back wall of a flexible container to secure the container to the chest wall. This prosthesis is implanted solely within the breast area of the patient. It has been found, however, that due to the natural tendency of the body to reject foreign objects, the prosthesis tends tolose its shape SUMMARY OF THE INVENTION The breast prosthesis of the present invention retains the natural appearance of the breast by the inclusion of a prolongation on the prosthesis which extends outwardly from'the breast area towards the axilla region of the anatomy. This prolongation when implanted in the patent will overlie the pectoral muscle. This prosthesisis held in position by a strip of felt material provided around the periphery of the back wall of the prolongation and around a portion of the back wall of the container. Tissue ingrowth is promoted only in the region of the strip of material leaving the major portion of the back wall free. Since the major portion of the back wall of the prosthesis is now physiologically inert, the prosthesis has greater freedom to follow the natural movements of the breast.

Distortion of the prosthesis by the force of the scar tissue is minimized by a fabric material which has been pre-impregnated with the polycarbonate material used to form the container and is secured to the inside surface of the back wall of the container. This fabric mesh increases the rigidity of the back wall with sufficient force to counteract the forces of tissue ingrowth. The fabric mesh extends across the entire back wall of the container and also across the back wall of the prolongation.

Other objects and advantages will be apparent from the following description when read in connection with the accompanying drawings.

TI-IE DRAWINGS FIG. I is a front view of a portion of the anatomy showing the approximate location of the prosthesis of this invention;

FIG. 2 is a front view of a prosthesis according to this invention for implanting on the right side of the patient;

F [6.3 is a back view of the prosthesis of FIG. 2; and

FIG. 4 is a section view taken on line 4-4 of the prosthesis of FIG. 2 showing the position of the fabric mesh.

DESCRIPTION OF THE INVENTION Referring to FIG. 1 of the drawing, the location of the prosthesis is shown in position in the right upper torso of the anatomy 12. The prosthesis 10 is so located that it follows generally the same contour for the right side of the anatomy as shown for the normal breast line 14 on the left side of the anatomy. The prosthesis 10 can be located behind the mammary gland of the patient to augment the appearance of the breast but will not interfere with the ability of the patient to nurse in the normal way, and does not interfere in any way with the functioning of the mammary gland.

In accordance with the invention, the breast prosthesis 10 is formed from a container which is filled with a soft gel 22. The container 20 is made of a material that has characteristics that resemble that of the normal human breast, such as softness and resiliency. The material must also be of a type which does not cause tissue reaction after implantation. A suitable material for the container 20 is an organopolysiloxane polycarbonate block copolymer.

The container 20 is formed with a front wall 24 having the general shape of a natural breast and a back wall 26 which follows the contour of the chest. In this respect, the back wall 26 has a generally concave appearance to fit comfortably against the chest wall. The container 20 can be formed on a mold having the general shape of the prosthesis. The mold is dipped in a liquid copolymer and rotated to form the container on the outside of the mold. The mold is repeatedly dipped and rotated to cure the copolymer until the container has the desired wall thickness. The wall of the container formed of this material has the same thickness and has little, if any, rigidity, being very soft and very flexible in compression but has great tensile strength. It should be noted that the edge or peripheral wall 25 of the container is round or curved as seen in FIG. 4.

The container 20 is formed with a prolongation 28 which is arranged to extend outwardly from the breast area toward the axilla region 30 of the anatomy. The prolongation 28 should overlie the area 32 of the pectoral muscle 32 and should be tapered outwardly toward the outer end. The axillary prolongation 28 follows the anatomical contour of the anatomy, thus providing a more natural appearance when implanted in the breast.-

The container 20 is filled with the silicone gel 22 to give the prosthesis the proper shape and resiliency. Silicone gel made in accordance with U.S. Pat. No. 3,020,260 which issued on Feb. 6, 1962 and entitled, Organosiloxane Potting Compound is a good example of a gel suitable for use in the prosthesis of this invention. The preferred gel for use in this invention is a liquid methyl silicone resin capable of being vulcanized to an elastomer blended with a dimethyl silicone fluid. A suitable fluid is General Electics VISCASIL and an appropriate resin recommended for this use is General Electrics elastomeric resin TRV-6l5. The proportion of resin to fluid may vary from 1:1 to 1:10 in order to obtain the proper gel consistency. The resin contains RzSiO-l/2 groups, RzSiO groups, and SiOz groups, where R represents methyl groups. The ratio of the groups one to the other determines the consistency of the gel.

Means are provided in the backwall 26 of the container 20 for stiffening or increasing the rigidity of the back wall in compression and thereby resist the tendency of the container to be deformed due to the force of the scar tissue. In this respect, it has been found that the scar tissue ingrowth in the entire back wall of a prosthesis as described in Cronin U.S. Pat. No. 3,293,663 tends to deform the prosthesis forcing the rigid edges of the prosthesis outward. A bulge will eventually appear around the periphery of the breast of the patient. This is prevented by means of a bio-compatible fabric material 40 such as a polyester, polypropylene or polyamide fabric in the form of a mesh which is secured to the back wall 26 of the container 20. The fabric material can be secured to the inside of the back wall or embedded therein. Any suitable means can be used for securing the fabric to the back wall, such as a silicone adhesive, or by heat sealing, or by laminating with the copolymer.

The fabric material 40 can be initially impregnated with the 'organosiloxane copolymer and cured to reduce the probability of tissue ingrowth and to increase the rigidity of the mesh. The impregnated mesh 40 can be secured to either the inside or outside surface of the back wall of the container. Impregnating the mesh with the copolymer will prevent tissue ingrowth if secured to the outside of the container. The fabric mesh 40 thereby increases the strength of the back wall in compression without increasing the thickness of the container nor the strength of the front wall 24.

The prosthesis 10 is secured to the chest wall of the patient by means of a strip 50 of felt-like material formed from a polyester material such as Dacron which is provided around the periphery of the axillary prolongation 28, and across the top portion of the back wall 26 of the container. The strip of felt S limits the amount of tissue ingrowth and at the same time provides sufficient support to maintain the prosthesis in position. The felt strip 50 is secured to the container by a silicone adhesive and is provided only along the upper edges of the prosthesis. The felt-like material limits the penetration of the adhesive to one side of the strip leaving the other side free for tissue ingrowth. The prosthesis is secured to the area of the pectoral musclealong the upper portion of the container only since the normal forces acting on the prosthesis are downward, thus leaving the major portion of the back wall 26 free or unattached to the chest wall. This arrangement for supporting the prosthesis in the breast allows for a more natural amount of movement of the breast.

Another important feature of the present invention is the elimination of any ridge or bulge around the prosthesis 10 which can be seen or felt after the prosthesis has been implanted in the patient. This has been achieved by forming the container as an integral unit having a curved wall or edge 25 between the front and back walls. Since the container material has no compressive strength and is very thin, the edge 25 will collapse when touched and cannot be felt through the skin of the patient.

RESUME The prosthesis of this invention includes a number of important features which have not previously been available in a breast prosthesis. The most important of these features is the axillary prolongation which tapers outwardly toward the axilla region of the patient. This prolongation provides a more natural appearance to the prosthesis after implant. The felt strip which is used to support and maintain the implant in position allows for greater freedom of movement of the prosthesis again providing a more natural appearance. The curved edge provided between the front wall and back wall of the container has eliminated the bulge or ridge which generally occurs around the prosthesis. The fabric material secured to the back wall of the container has increased the strength or rigidity of the back wall of the container so that the prosthesis does not become distorted after implant.

We claim:

1. A surgically implantable breast prosthesis comprising,

a flexible container having a front wall and a back wall, said front wall having an outer shape approximating that of the human breast, and said back wall having an outer shape approximating that of the chest wall,

said container including a prolongation formed by said back and said front wall and extending angularly outwardly toward the axillary region of the anatomy,

a silicone gel filling the inside of said container, and

means secured to the periphery of the back wall of said axillary prolongation for permitting tissue ingrowth from the area of the pectoral muscle.

2. The prosthesis according to claim 1 including means secured to the inside of said back wall for maintaining the shape of the prosthesis.

3. The prosthesis according to claim 1 including a polyester fabric mesh impregnated with an organosiloxane copolymer secured to said back wall of said container.

4. The prosthesis according to claim 1 including a polyester fabric mesh impregnated with an organosiloxane copolymer secured to the inside surface of the back wall of said container.

5. The prosthesis according to claim I wherein said back wall and said front wall are formed as an integral unit having an arcuate wall around the outer periphery of said container.

6. A surgically implantable breast prosthesis comprising,

a flexible container having a front wall and a back wall, said front wall having a shape approximating that of the human breast, said back wall having a shape approximating that ofthe chest wall,

said container including an axillary prolongation,

a silicone'gel filling the inside ofsaid container, and means for stiffening said back wall.

7. The prosthesis according to claim 6 wherein said stiffening means comprises a polyester fabric.

8. The prosthesis according to claim 6 wherein said stiffening means comprises a fabric mesh impregnated with an organosiloxane copolymer prior to being attached to said container.

9. The prosthesis according to claim 6 including means secured to the periphery of the back wall of said prolongation for promoting tissue ingrowth to secure the prosthesis in position.

10. The prosthesis according to claim 6 wherein said container includes a curved wall around the periphery of said container formed integral with said front wall and said back wall.

11. A surgically implantable prosthesis comprising,

a flexible container molded from an organosiloxane copolymer and having an axillary prolongation,

a silicone gel completely filling said container,

means attached to said container for stiffening the back portion ofsaid container, and

means secured to the periphery of said prolongation for promoting tissue ingrowth.

12. The prosthesis according to claim 1 wherein said con tainer is formed with a curved wall around the periphery.

Claims (11)

  1. 2. The prosthesis according to claim 1 including means secured to the inside of said back wall for maintaining the shape of the prosthesis.
  2. 3. The prosthesis according to claim 1 including a polyester fabric mesh impregnated with an organosiloxane copolymer secured to said back wall of said container.
  3. 4. The prosthesis according to claim 1 including a polyester fabric mesh impregnated with an organosiloxane copolymer secured to the inside surface of the back wall of said container.
  4. 5. The prosthesis according to claim 1 wherein said back wall and said front wall are formed as an integral unit having an arcuate wall around the outer periphery of said container.
  5. 6. A surgically implantable breast prosthesis comprising, a flexible container having a front wall and a back wall, said front wall having a shape approximating that of the human breast, said back wall having a shape approximating that of the chest wall, said container including an axillary prolongation, a silicone gel filling the inside of said container, and means for stiffening said back wall.
  6. 7. The prosthesis according to claim 6 wherein said stiffening means comprises a polyester fabric.
  7. 8. The prosthesis according to claim 6 wherein said stiffening means comprises a fabric mesh impregnated with an organosiloxane copolymer prior to being attached to said container.
  8. 9. The prosthesis according to claim 6 including means secured to the periphery of the back wall of said prolongation for promoting tissue ingrowth to secure the prosthesis in position.
  9. 10. The prosthesis according to claim 6 wherein said container includes a curved wall around the periphery of said container formed integral with said front wall and said back wall.
  10. 11. A surgically implantable prosthesis comprising, a flexible container molded from an organosiloxane copolymer and having an axillary prolongation, a silicone gel completely filling said container, means attached to said container for stiffening the back portion of said container, and means secured to the periphery of said prolongation for promoting tissue ingrowth.
  11. 12. The prosthesis according to claim 1 wherein said container is formed with a curved wall around the periphery.
US3665520A 1970-10-07 1970-10-07 Surgically implantable breast prosthesis Expired - Lifetime US3665520A (en)

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Cited By (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3896506A (en) * 1974-01-21 1975-07-29 George Hankin Breast prosthesis
US3911503A (en) * 1974-01-21 1975-10-14 George Hankin Breast prosthesis
US4019209A (en) * 1976-04-22 1977-04-26 Spenco Medical Corporation Artificial breast form and method of forming
US4095295A (en) * 1977-03-28 1978-06-20 Douglas Lake Adjustable, fluid-filled breast implant
US4100627A (en) * 1976-05-27 1978-07-18 Dow Corning Corporation Low oiling gel filled flexible articles and gels therefor
DE2920980A1 (en) * 1978-05-25 1979-11-29 Dow Corning Surgically inplantierbare breast prosthesis
US4217889A (en) * 1976-09-15 1980-08-19 Heyer-Schulte Corporation Flap development device and method of progressively increasing skin area
FR2447183A1 (en) * 1979-01-24 1980-08-22 Hamas Robert Breast prosthesis
WO1981001650A1 (en) * 1979-12-17 1981-06-25 Dow Corning Silicone gel-filled silicone rubber article possessing reduced surface-bleed
US4298998A (en) * 1980-12-08 1981-11-10 Naficy Sadeque S Breast prosthesis with biologically absorbable outer container
US4372293A (en) * 1980-12-24 1983-02-08 Vijil Rosales Cesar A Apparatus and method for surgical correction of ptotic breasts
US4380569A (en) * 1981-08-03 1983-04-19 Spenco Medical Corporation Lightweight preformed stable gel structures and method of forming
FR2542606A1 (en) * 1983-03-18 1984-09-21 Roehm Gmbh Piece implantable molded synthetic material, including a breast prosthesis
US4592755A (en) * 1985-06-11 1986-06-03 Ethyl Corporation Mammary implant
US4615704A (en) * 1984-11-26 1986-10-07 Dow Corning Corporation Shape retention tissue expander and method of using
US4740208A (en) * 1980-11-21 1988-04-26 Cavon Joseph F Cast gel implantable prosthesis
US4773909A (en) * 1981-10-06 1988-09-27 Memorial Hospital For Cancer And Allied Diseases Multi-lumen high profile mammary implant
US5026394A (en) * 1989-01-10 1991-06-25 Baker James L Mammary implant
US5236454A (en) * 1991-11-04 1993-08-17 Miller Archibald S Stacked breast implant
US5407445A (en) * 1992-05-20 1995-04-18 Cytrx Corporation Gel composition for implant prosthesis and method of use
US5653758A (en) * 1992-11-18 1997-08-05 Lipomatrix, Incorporated Method of using a radiolucent organ displacement device for radiation therapy
FR2794361A1 (en) * 1999-06-02 2000-12-08 Arnaud Rochebiliere Breast prosthesis
US6290723B1 (en) 1994-06-14 2001-09-18 Winston A. Andrews Method of making a synthetic triglyceride filler material
US20020038147A1 (en) * 1999-10-22 2002-03-28 Miller Archibald S. Breast implant
FR2826255A1 (en) * 2001-06-26 2002-12-27 Eurosilicone Lab Anatomical breast implant, has lower textile reinforced panel and positioning tongue
US6605116B2 (en) 2001-04-03 2003-08-12 Mentor Corporation Reinforced radius mammary prostheses and soft tissue expanders
WO2004041128A1 (en) * 2002-10-23 2004-05-21 Laboratoires Eurosilicone Anatomical breast implant with controllable and stable positioning
US20050271633A1 (en) * 1997-02-20 2005-12-08 Kleinsek Don A Issue defect augmentation and repair with in vitro cultured fibroblasts
US20060039896A1 (en) * 1999-11-05 2006-02-23 Gerigene Medical Corporation Augmentation and repair of age-related soft tissue defects
US20070055371A1 (en) * 2005-09-08 2007-03-08 Laghi Aldo A External breast prosthesis
US20070065415A1 (en) * 2005-09-16 2007-03-22 Kleinsek Donald A Compositions and methods for the augmentation and repair of defects in tissue
US20070154462A1 (en) * 1997-02-20 2007-07-05 Kleinsek Don A Augmentation and repair of tissue defects with in vitro cultured fibroblasts
US20080112935A1 (en) * 1999-11-05 2008-05-15 Kleinsek Donald A Augmentation and repair of spincter defects with cells including fibroblasts
US20080118478A1 (en) * 1999-11-05 2008-05-22 Kleinsek Donald A Hair undifferentiated cells
US20080138324A1 (en) * 1999-11-05 2008-06-12 Kleinsek Donald A Hair mesenchymal cells
US20080152721A1 (en) * 1999-11-05 2008-06-26 Kleinsek Donald A Augmentation and repair of spincter defects with cells including adipocytic cells
US20080154366A1 (en) * 2006-12-21 2008-06-26 Frank Robert E Implantable prosthesis for periareolar mastopexy
US20080152628A1 (en) * 1999-11-05 2008-06-26 Kleinsek Donald A Augmentation and repair of spincter defects with cells including mesenchymal cells
US20090118829A1 (en) * 2007-11-05 2009-05-07 Allergan, Inc. Soft prosthesis shell texturing method
US20090130066A1 (en) * 2000-11-06 2009-05-21 Gerigene Medical Corporation Augmentation and repair of sphincter defects with cells including muscle cells
US20100042212A1 (en) * 2008-08-13 2010-02-18 Allergan, Inc. Soft Filled Prosthesis Shell With Discrete Fixation Surfaces
US20100042211A1 (en) * 2008-08-13 2010-02-18 Allergan, Inc. Soft filled prosthesis shell with discrete fixation surfaces
US20100292790A1 (en) * 2009-05-13 2010-11-18 Allergan, Inc. Implants and methods for manufacturing same
US20110093069A1 (en) * 2009-10-16 2011-04-21 Allergan, Inc. Implants and methdos for manufacturing same
US20110184531A1 (en) * 2010-01-28 2011-07-28 Allergan, Inc. Open celled foams, implants including them and processes for making same
US20110196488A1 (en) * 2010-02-03 2011-08-11 Allergan, Inc. Degradation resistant implantable materials and methods
ES2409691A1 (en) * 2012-11-16 2013-06-27 Federico MAYO MARTIN breast implant
US8546458B2 (en) 2010-12-07 2013-10-01 Allergan, Inc. Process for texturing materials
US8679279B2 (en) 2010-11-16 2014-03-25 Allergan, Inc. Methods for creating foam-like texture
US8679570B2 (en) 2010-04-27 2014-03-25 Allergan, Inc. Foam-like materials and methods for producing same
US8685296B2 (en) 2010-05-11 2014-04-01 Allergan, Inc. Porogen compositions, method of making and uses
US8801782B2 (en) 2011-12-15 2014-08-12 Allergan, Inc. Surgical methods for breast reconstruction or augmentation
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US8889751B2 (en) 2010-09-28 2014-11-18 Allergan, Inc. Porous materials, methods of making and uses
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US9072821B2 (en) 2010-02-05 2015-07-07 Allergan, Inc. Biocompatible structures and compositions
US9138308B2 (en) 2010-02-03 2015-09-22 Apollo Endosurgery, Inc. Mucosal tissue adhesion via textured surface
US9138309B2 (en) 2010-02-05 2015-09-22 Allergan, Inc. Porous materials, methods of making and uses
US9205577B2 (en) 2010-02-05 2015-12-08 Allergan, Inc. Porogen compositions, methods of making and uses
US9539086B2 (en) 2014-05-16 2017-01-10 Allergan, Inc. Soft filled prosthesis shell with variable texture
US9688006B2 (en) 2012-12-13 2017-06-27 Allergan, Inc. Device and method for making a variable surface breast implant
US9848972B2 (en) 2008-08-13 2017-12-26 Allergan, Inc. Dual plane breast implant

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Cited By (87)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3896506A (en) * 1974-01-21 1975-07-29 George Hankin Breast prosthesis
US3911503A (en) * 1974-01-21 1975-10-14 George Hankin Breast prosthesis
US4019209A (en) * 1976-04-22 1977-04-26 Spenco Medical Corporation Artificial breast form and method of forming
US4100627A (en) * 1976-05-27 1978-07-18 Dow Corning Corporation Low oiling gel filled flexible articles and gels therefor
US4217889A (en) * 1976-09-15 1980-08-19 Heyer-Schulte Corporation Flap development device and method of progressively increasing skin area
US4095295A (en) * 1977-03-28 1978-06-20 Douglas Lake Adjustable, fluid-filled breast implant
DE2920980A1 (en) * 1978-05-25 1979-11-29 Dow Corning Surgically inplantierbare breast prosthesis
US4205401A (en) * 1978-05-25 1980-06-03 Dow Corning Corporation Mammary prosthesis which resists capsular contracture
FR2447183A1 (en) * 1979-01-24 1980-08-22 Hamas Robert Breast prosthesis
WO1981001650A1 (en) * 1979-12-17 1981-06-25 Dow Corning Silicone gel-filled silicone rubber article possessing reduced surface-bleed
US4740208A (en) * 1980-11-21 1988-04-26 Cavon Joseph F Cast gel implantable prosthesis
US4298998A (en) * 1980-12-08 1981-11-10 Naficy Sadeque S Breast prosthesis with biologically absorbable outer container
US4372293A (en) * 1980-12-24 1983-02-08 Vijil Rosales Cesar A Apparatus and method for surgical correction of ptotic breasts
US4380569A (en) * 1981-08-03 1983-04-19 Spenco Medical Corporation Lightweight preformed stable gel structures and method of forming
US4773909A (en) * 1981-10-06 1988-09-27 Memorial Hospital For Cancer And Allied Diseases Multi-lumen high profile mammary implant
FR2542606A1 (en) * 1983-03-18 1984-09-21 Roehm Gmbh Piece implantable molded synthetic material, including a breast prosthesis
US4615704A (en) * 1984-11-26 1986-10-07 Dow Corning Corporation Shape retention tissue expander and method of using
US4592755A (en) * 1985-06-11 1986-06-03 Ethyl Corporation Mammary implant
US5026394A (en) * 1989-01-10 1991-06-25 Baker James L Mammary implant
US5236454A (en) * 1991-11-04 1993-08-17 Miller Archibald S Stacked breast implant
US5407445A (en) * 1992-05-20 1995-04-18 Cytrx Corporation Gel composition for implant prosthesis and method of use
US5653758A (en) * 1992-11-18 1997-08-05 Lipomatrix, Incorporated Method of using a radiolucent organ displacement device for radiation therapy
US6290723B1 (en) 1994-06-14 2001-09-18 Winston A. Andrews Method of making a synthetic triglyceride filler material
US20050271633A1 (en) * 1997-02-20 2005-12-08 Kleinsek Don A Issue defect augmentation and repair with in vitro cultured fibroblasts
US20070154462A1 (en) * 1997-02-20 2007-07-05 Kleinsek Don A Augmentation and repair of tissue defects with in vitro cultured fibroblasts
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