US4820303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implantable prosthetic devices
Assignee: Individual
•
Filing: 1986-11-28
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Granted: 1989-04-11
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Expires: 2006-11-28
Abstract
Abstract An improved implantable prosthetic device for use in the human body which comprises a flexible container having therein a soft gel or fluid filling and an outer plastic covering bonded or otherwise connected to the flexible container. The external surface of the outer plastic covering is rough textured, while the plastic covering itself has numerous pores or interstices. It substantially encases the flexible container. In one embodiment a barrier film is positioned between the flexible container and the outer plastic covering or between the soft gel or liquid filling and the internal of the flexible container. The outer plastic covering is made of Dacron or Teflon.
Inventors
- 👤 Daniel Brauman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:33
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/14; A61F; A61F2/00; A61F2/0077; A61F2/02; A61F2/12; A61L27/28; A61L27/34
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
95 words
In an implantable prosthetic device for use in a human body including a flexible container and a soft gel or liquid filling the flexible container; the improvement which comprises providing an outer plastic covering made of an expanded tetrafluoroethylene polymer and bonded to the flexible container, said outer plastic covering having a rough textured external surface thereby providing a multiplicity of pores and/or interstices, said outer plastic covering encases the flexible container in order to prevent the contraction of scar tissue around the prosthetic device from pulling the prosthetic device into a hard, spherical shape.
Claim 2
Dependent Claim
95 words
In an implantable prosthetic device for use in a human body including a flexible container and a soft gel or liquid filling the flexible container; the improvement which comprises providing an outer plastic covering made of an expanded tetrafluoroethylene polymer and bonded to the flexible container, said outer plastic covering having a rough textured external surface thereby providing a multiplicity of pores and/or interstices, said outer plastic covering encases the flexible container in order to prevent the contraction of scar tissue around the prosthetic device from pulling the prosthetic device into a hard, spherical shape.
Claim 3
Dependent Claim
34 words
In the implantable prosthetic device of claim 1 wherein a barrier film is positioned between the flexible container and the outer plastic covering having said rough, textured external surface or inside the flexible container.
Claim 4
Dependent Claim
15 words
In the implantable prosthetic device of claim 2 wherein said barrier film is a fluororubber.
Claim 5
Dependent Claim
59 words
In a breast prosthesis comprising a flexible container approximating the shape of the human breast and a soft gel or liquid filling said container; the improvement which comprises providing an outer, rough textured plastic covering made of an expanded tetrafluoroethylene polymer and which encases the flexible container had has an outer surface having a multiplicity of pores and/or interstices.
Claim 6
Dependent Claim
59 words
In a breast prosthesis comprising a flexible container approximating the shape of the human breast and a soft gel or liquid filling said container; the improvement which comprises providing an outer, rough textured plastic covering made of an expanded tetrafluoroethylene polymer and which encases the flexible container had has an outer surface having a multiplicity of pores and/or interstices.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-10 | 1992-10-10 | 1993-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-10 | 1996-10-10 | 1997-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-10 | 2000-10-10 | 2001-04-11 | $7700.00 | Window Closed / Lapsed |