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US5282856A Expired / Lapsed US ⏱️ 0.0 years remaining

Implantable prosthetic device

Assignee: Individual
•
Filing: 1987-12-22
•
Granted: 1994-02-01
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Expires: 2007-12-22
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Abstract

Abstract An implant and coverings for an implant for used in the human body are disclosed. Coverings for implants are constructed to present a biocompatible surface to the body and to provide a textured surface which serves to disorganize scar tissue which forms around the implant. Filaments of expanded PTFEe are attached to a stretch fabric backing in a loose weave configuration. Silicone molded in geometric patterns may be employed to present a textured surface. Compressive structures may be beneficially used on the surface of the implant or in the interior of the implant. Foam is one such compressive structure. Hexagonally shaped compressive cells containing fluid, gas, gel or foam are adapted to receive an insert which contains an outer biocompatible coating. A valve or port is provided to communicate between the cell and the body. Expansions means may be provided to expand the implant in a desired direction.

Inventors

  • 👤 Walter J. Ledergerber

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 15:50
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/12; A61F2/0077; A61L; A61L27/00; A61L27/28; A61L27/34

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 78 words
A covering for an implant comprising, an exterior surface which is expandable and which substantially covers the implant formed from a plurality of adjacent PTEEe tubes, said tubes having a predetermined length and having an unsevered annular end and a plurality of lengthwise slits around said tube to form a plurality of projections extending from the unsevered annular end to an opposite end, and a stretch fabric backing to which the unsevered ends of said tubes are sewn.
Claim 2
Dependent Claim 78 words
A covering for an implant comprising, an exterior surface which is expandable and which substantially covers the implant formed from a plurality of adjacent PTEEe tubes, said tubes having a predetermined length and having an unsevered annular end and a plurality of lengthwise slits around said tube to form a plurality of projections extending from the unsevered annular end to an opposite end, and a stretch fabric backing to which the unsevered ends of said tubes are sewn.
Claim 3
Dependent Claim 14 words
The covering of claim 1 wherein the stretch fabric backing is a background weave.
Claim 4
Dependent Claim 14 words
The covering of claim 1 wherein the stretch fabric backing is a nylon weave.
Claim 5
Dependent Claim 69 words
A covering for an implant comprising: a shell having an exterior surface formed from a plurality of adjacent PTEEe tubes, said tubes having a predetermined length and having an unsevered annular end and a plurality of lengthwise slits about said tube to form a plurality of projections extending from the unsevered annular end to an opposite end, wherein the unsevered ends of said tubes are attached to said shell.
Claim 6
Dependent Claim 69 words
A covering for an implant comprising: a shell having an exterior surface formed from a plurality of adjacent PTEEe tubes, said tubes having a predetermined length and having an unsevered annular end and a plurality of lengthwise slits about said tube to form a plurality of projections extending from the unsevered annular end to an opposite end, wherein the unsevered ends of said tubes are attached to said shell.

References Cited (Backward Citations)

US3093831A Cited
US3559214A Cited
US4019209A Cited
US4531244A Cited
US4648880A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-01-31 1997-08-02 1998-02-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-01-31 2001-08-02 2002-02-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-01-31 2005-08-02 2006-02-01 $7700.00 Window Closed / Lapsed

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