US5455100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous articles and methods for producing same
Assignee: Biomet Manufacturing LLC
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Filing: 1993-10-08
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Granted: 1995-10-03
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Expires: 2013-10-08
Abstract
Abstract A porous article comprising a three-dimensional network of interconnecting pores and a void volume between twenty and eighty percent. The porous article is manufactured using a specifically delineated mesh structure wherein the pore size, void volume and material properties are tightly controlled and easily varied. The resulting material is advantageously applied to several bio-medical applications, including reconstructive surgery and arterial replacement.
Inventors
- 👤 Eugene W. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:48
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; A; A61; A61F; A61F2/00; A61F2/0077; A61F2/02; A61F2/04; A61F2/06; A61F2/28; A61F2/30; A61F2/30767; A61F2/30771; A61L; A61L27/00; A61L27/50; A61L27/56; B; B29; B29C; B29C39/00; B29C39/14; B29C39/148; B29D; B29D28/00; A61F2/10; A61F2/105; A61F2/3094; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30138; A61F2002/30153; A61F2002/30199; A61F2002/30224; A61F2002/30261; A61F2002/30263; A61F2002/30291; A61F2002/30298; A61F2002/30303; A61F2002/30316; A61F2002/30329; A61F2002/30448; A61F2002/30535; A61F2002/30599; A61F2002/30772; A61F2002/30784; A61F2002/30785; A61F2002/30795; A61F2002/308; A61F2002/30807; A61F2002/30808; A61F2002/30838; A61F2002/30878; A61F2002/30891; A61F2002/30892; A61F2002/30896; A61F2002/3092; A61F2002/30929; A61F2/30942; A61F2002/30957; A61F2002/30968; A61F2002/30978; A61F2220/00; A61F2220/0025; A61F2220/005; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2230/0019; A61F2230/0063; A61F2230/0069; A61F2230/0082; A61F2230/0084; A61F2230/0091; A61F2250/00; A61F2250/0058; A61F2250/006; A61F2250/0063; A61F2310/00; A61F2310/00005; A61F2310/00179; A61F2310/00293; A61F2310/00365; A61F2310/00383; B29L; B29L2031/00; B29L2031/737; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/24322; Y10T428/24479; Y10T428/24562; Y10T428/24628; Y10T428/24661; Y10T428/24942; Y10T428/2495; Y10T428/249921; Y10T428/249953; Y10T428/249975; Y10T428/249978; Y10T428/249987; Y10T428/249991; Y10T428/26; Y10T428/268
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
115 words
A non-woven porous material having a void volume percent between twenty and eighty, comprising a network of repeating interconnected blocks wherein each block has at least six protrusions extending out therefrom, and wherein said protrusions are grouped in co-planer opposing pairs aligned along each of the three orthogonal planes intersecting in the block, and further form connective arms between adjacent blocks so that substantially all of said blocks are each connected to six adjacent blocks within the body of said material thereby forming a uniform matrix of passageways aligned with said connective arms, and wherein said matrix of passageways includes saddle-shaped curved surfaces and said passageways have an effective diameter between 25 to 1000 μm.
Claim 2
Dependent Claim
115 words
A non-woven porous material having a void volume percent between twenty and eighty, comprising a network of repeating interconnected blocks wherein each block has at least six protrusions extending out therefrom, and wherein said protrusions are grouped in co-planer opposing pairs aligned along each of the three orthogonal planes intersecting in the block, and further form connective arms between adjacent blocks so that substantially all of said blocks are each connected to six adjacent blocks within the body of said material thereby forming a uniform matrix of passageways aligned with said connective arms, and wherein said matrix of passageways includes saddle-shaped curved surfaces and said passageways have an effective diameter between 25 to 1000 μm.
Claim 3
Dependent Claim
19 words
The non-woven porous material of claim 1, wherein an interface of said void volume represents a mathematically minimal surface.
Claim 4
Dependent Claim
15 words
The non-woven porous material of claim 1, wherein the material is formed of silicone rubber.
Claim 5
Dependent Claim
108 words
A non-woven implantable prosthetic porous material having a void volume percent between twenty and eighty, comprising a network of repeating interconnected blocks wherein each block has at least six protrusions extending out therefrom, and wherein said protrusions are grouped in co-planer opposing pairs aligned along each of the three orthogonal planes intersecting in the block, and further form connective arms between adjacent blocks so that substantially all of said blocks are each connected to six adjacent blocks within the body of said material thereby forming a uniform matrix of passageways aligned with said connective arms, and wherein said passageways have an effective diameter between 25 to 1000 μm.
Claim 6
Dependent Claim
108 words
A non-woven implantable prosthetic porous material having a void volume percent between twenty and eighty, comprising a network of repeating interconnected blocks wherein each block has at least six protrusions extending out therefrom, and wherein said protrusions are grouped in co-planer opposing pairs aligned along each of the three orthogonal planes intersecting in the block, and further form connective arms between adjacent blocks so that substantially all of said blocks are each connected to six adjacent blocks within the body of said material thereby forming a uniform matrix of passageways aligned with said connective arms, and wherein said passageways have an effective diameter between 25 to 1000 μm.
Claim 7
Dependent Claim
13 words
The non-woven porous material of claim 4, wherein said block is a cube.
Claim 8
Dependent Claim
19 words
The non-woven porous material of claim 4, wherein an interface of said void volume represents a mathematically minimal surface.
Claim 9
Dependent Claim
15 words
The non-woven porous material of claim 4, wherein the material is formed of silicone rubber.
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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) | 1998-10-02 | 1999-04-03 | 1999-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-02 | 2003-04-03 | 2003-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-02 | 2007-04-03 | 2007-10-03 | $7700.00 | Window Closed / Lapsed |