US5700241A
Expired / Lapsed
US
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Cross-sectional tissue textured surfaces
Assignee: Wisconsin Alumni Research Foundation
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Filing: 1996-04-04
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Granted: 1997-12-23
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Expires: 2016-04-04
Abstract
Abstract Medical devices, such as percutaneous access devices and other implants, are disclosed which have synthetic biotextured surfaces. The peripheral outer surfaces of these items are provided with either a positive or an inverse representation of transverse surfaces using microcasting techniques.
Inventors
- 👤 Steven L. Goodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:33
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/0247; A61F; A61F2/00; A61F2/0077; A61F2/02; A61F2/04; A61F2/06; A61F2/10; A61F2/105; A61M25/00; A61M25/0017; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1397; Y10T428/24; Y10T428/24033; Y10T428/24041
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
41 words
A percutaneous access device of a type suitable to be inserted through human skin, the device comprising a housing having (a) a through bore, and (b) a peripheral outer surface that essentially replicates a portion of a transverse mammalian epithelial surface.
Claim 2
Dependent Claim
41 words
A percutaneous access device of a type suitable to be inserted through human skin, the device comprising a housing having (a) a through bore, and (b) a peripheral outer surface that essentially replicates a portion of a transverse mammalian epithelial surface.
Claim 3
Dependent Claim
20 words
The device of claim 1, wherein the outer surface is essentially an inverse representation of a cross section through skin.
Claim 4
Dependent Claim
13 words
The device of claim 2, wherein the outer surface is made from plastic.
Claim 5
Dependent Claim
20 words
The device of claim 1, wherein the outer surface is essentially a positive representation of a cross section through skin.
Claim 6
Dependent Claim
13 words
The device of claim 4, wherein the outer surface is made from plastic.
Claim 7
Dependent Claim
54 words
A method of creating the claim 1 device, comprising: exposing a transverse mammalian epithelial surface of tissue; agitating a liquid against the exposed transverse epithelial surface; covering the exposed transverse epithelial surface with a casting material and allowing the casting material to harden against the surface; and removing tissue from the hardened casting material.
Claim 8
Dependent Claim
15 words
The method of claim 6, wherein human skin provides a mold for the casting material.
Claim 9
Dependent Claim
50 words
A medical implant of a type suitable to be implanted in a mammalian site, the mammalian site being selected from the group consisting of mammalian skin and mammalian organ, the implant comprising a body having a surface that essentially replicates a portion of a transverse surface of such a site.
Claim 10
Dependent Claim
50 words
A medical implant of a type suitable to be implanted in a mammalian site, the mammalian site being selected from the group consisting of mammalian skin and mammalian organ, the implant comprising a body having a surface that essentially replicates a portion of a transverse surface of such a site.
Claim 11
Dependent Claim
13 words
The implant of claim 8, wherein the surface is a peripheral outer surface.
Claim 12
Dependent Claim
22 words
The implant of claim 9, wherein the outer surface is essentially an inverse representation of a cross section through such a site.
Claim 13
Dependent Claim
13 words
The device of claim 10, wherein the outer surface is made from plastic.
Claim 14
Dependent Claim
22 words
The device of claim 9, wherein the outer surface is essentially a positive representation of a cross section through such a site.
Claim 15
Dependent Claim
13 words
The device of claim 12, wherein the outer surface is made from plastic.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-12-22 | 2001-06-23 | 2001-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-22 | 2005-06-23 | 2005-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-22 | 2009-06-23 | 2009-12-23 | $7700.00 | Window Closed / Lapsed |