Patent US4693939A successfully refreshed from Google Patents.
US5545217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breast implant
Assignee: C M Offray and Son Inc
•
Filing: 1995-04-20
•
Granted: 1996-08-13
•
Expires: 2015-04-20
Abstract
Abstract A breast prosthesis implant is disclosed comprising a generally conical bio-compatible fabric shell. The shell is pervious to tissue growth and body fluids. The interior of the shell is divided into series of discrete chambers separated by pervious fabric dividers, the chambers containing masses of bio-compatible fibers. The fiber concentration in the chambers nearest the apex of the cone is less than the concentration in chambers progressively further from the cone apex. Preferably, the shell is somewhat stretchable to permit the volume of the shell to increase or decrease in accordance with the weight gain or loss of the patient.
Inventors
- 👤 Denise A. Offray
- 👤 Durmus Koch
- 👤 John Mortensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:50
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
48 words
A breast prosthesis implant comprising a bio-compatible tissue and body fluid pervious fabric shell in the general configuration of a cone, a plurality of pervious partitions extending transversely within said shell and dividing said shell into a series of chambers, and bio-compatible fibrous masses disposed within said chambers.
Claim 2
Dependent Claim
48 words
A breast prosthesis implant comprising a bio-compatible tissue and body fluid pervious fabric shell in the general configuration of a cone, a plurality of pervious partitions extending transversely within said shell and dividing said shell into a series of chambers, and bio-compatible fibrous masses disposed within said chambers.
Claim 3
Dependent Claim
37 words
A prosthesis in accordance with claim 1 wherein the density of said fibrous masses increases progressively from the chamber closest to the apex of the cone to the chamber most remote from the apex of the cone.
Claim 4
Dependent Claim
16 words
A prosthesis in accordance with claim 1 wherein said shell includes a velour outer surface portion.
Claim 5
Dependent Claim
20 words
A prosthesis in accordance with claim 1 wherein said shell and fibrous masses are comprised of a homopolymer polyester material.
Claim 6
Dependent Claim
21 words
A prosthesis in accordance with claim 1 wherein said shell comprises a woven fabric including on the external surface thereof loops.
Claim 7
Dependent Claim
16 words
A prosthesis in accordance with claim 1 wherein said partitions are comprised of open weave fabric.
Claim 8
Dependent Claim
24 words
A prosthesis in accordance with claim 1 wherein said shell comprises a stretchable knitted fabric whereby the same may increase and decrease in volume.
Claim 9
Dependent Claim
45 words
A prosthesis in accordance with claim 7 wherein said partitions are woven fabric and are less stretchable than the fabric of said shell, whereby said prosthesis is susceptible to greater growth in the direction of the axis of said cone than in a radial direction.
Claim 10
Dependent Claim
45 words
A prosthesis in accordance with claim 8 and including at least two said partitions dividing the interior of said prosthesis into at least three said chambers, the concentration of said fibrous masses increasing progressively in the chambers more remote from the apex of said shell.
References Cited (Backward Citations)
US3189921A
Cited
US3293663A
Cited
US3654914A
Cited
US4485096A
Cited
US4863733A
Cited
EP0230672A2
Cited
US4936858A
Cited
US4710162A
Cited
US5002071A
Cited
US4892539A
Cited
US4995907A
Cited
US4994084A
Cited
US4995882A
Cited
US5171269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-08-13 | 2000-02-12 | 2000-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-13 | 2004-02-12 | 2004-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-13 | 2008-02-12 | 2008-08-13 | $7700.00 | Window Closed / Lapsed |