US5735902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand implant device
Assignee: Regen Biologics Inc
•
Filing: 1996-10-23
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Granted: 1998-04-07
•
Expires: 2016-10-23
Abstract
Abstract A hand augmentation device to be used to replace diseased tissue of a hand bone. The device includes a dry matrix, which contains at least 75% by weight biocompatible and bioresorbable biopolymeric fibers such as collagen fibers or polysaccharide fibers, and has a height of 2 mm to 4 cm, a width of 0.5 cm to 6 cm, a depth of 0.5 cm to 6 cm, a density of 0.1 g/cm 3 to 0.5 g/cm 3 , and a pore size of 50 μm to 300 μm.
Inventors
- 👤 Shu-Tung Li
- 👤 Jack A. McCarthy
- 👤 William G. Rodkey
- 👤 J. Richard Steadman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:41
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/50; A61L27/58; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2/30; A61F2/30721; A61F2/30734; A61F2/30756; A61F2/38; A61F2/3872; A61F2/42; A61F2/4261; A61F2/44; A61F2/442; A61L27/14; A61L27/20; A61L27/22; A61L27/227; A61L27/24; A61L27/26; A61L27/36; A61L27/3641; A61L27/40; A61L27/44; A61L27/46; A61L27/48; A61L27/54; A61L27/56; A61B; A61B17/00; A61B17/04; A61B17/0469; A61F2/30767; A61F2/30907; A61F2/3094; A61F2/30965; A61F2/46; A61F2/4603; A61F2/461; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30062; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30113; A61F2002/30131; A61F2002/30199; A61F2002/30205; A61F2002/30224; A61F2002/30225; A61F2002/3023; A61F2002/30667; A61F2002/30677; A61F2002/30736; A61F2002/30766; A61F2/30771; A61F2002/30795; A61F2002/30807; A61F2002/30808; A61F2002/3082; A61F2002/30822; A61F2002/30827; A61F2002/30878; A61F2002/30879; A61F2002/30881; A61F2002/30891; A61F2002/30904; A61F2/30942; A61F2002/30957; A61F2002/4271; A61F2002/4274; A61F2002/4276; A61F2002/4279; A61F2002/4282; A61F2002/4284; A61F2002/4287; A61F2002/4289; A61F2002/4292; A61F2002/4294; A61F2002/4297; A61F2002/4495; A61F2210/00; A61F2210/0004; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0013; A61F2230/0063; A61F2230/0067; A61F2230/0069; A61F2310/00; A61F2310/00005; A61F2310/00365; A61L2300/00; A61L2300/20; A61L2300/23; A61L2300/236; A61L2300/252; A61L2300/40; A61L2300/404; A61L2300/406; A61L2300/412; A61L2300/414; A61L2430/00; A61L2430/06; A61L2430/38
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
67 words
A hand augmentation device comprising a dry matrix which contains at least 75% by weight biocompatible and bioresorbable biopolymeric fibers, and has a height of 2 mm to 4 cm, a width of 0.5 cm to 6 cm, a depth of 0.5 cm to 6 cm, a density of 0.1 g/cm 3 to 0.5 g/cm 3 , and a pore size of 50 μm to 300 μm.
Claim 2
Dependent Claim
67 words
A hand augmentation device comprising a dry matrix which contains at least 75% by weight biocompatible and bioresorbable biopolymeric fibers, and has a height of 2 mm to 4 cm, a width of 0.5 cm to 6 cm, a depth of 0.5 cm to 6 cm, a density of 0.1 g/cm 3 to 0.5 g/cm 3 , and a pore size of 50 μm to 300 μm.
Claim 3
Dependent Claim
15 words
The device of claim 1, wherein said biopolymeric fibers are collagen fibers or polysaccharide fibers.
Claim 4
Dependent Claim
12 words
The device of claim 2, wherein said biopolymeric fibers are collagen fibers.
Claim 5
Dependent Claim
14 words
The device of claim 2, further comprising a bioactive substance dispersed in said matrix.
Claim 6
Dependent Claim
20 words
The device of claim 4, wherein said bioactive substance is a glycosaminoglycan, a growth factor, an antibiotic, or a glycoprotein.
Claim 7
Dependent Claim
14 words
The device of claim 3, further comprising a bioactive substance dispersed in said matrix.
Claim 8
Dependent Claim
20 words
The device of claim 6, wherein said bioactive substance is a glycosaminoglycan, a growth factor, an antibiotic, or a glycoprotein.
Claim 9
Dependent Claim
14 words
The device of claim 1, further comprising a bioactive substance dispersed in said matrix.
Claim 10
Dependent Claim
20 words
The device of claim 8, wherein said bioactive substance is a glycosaminoglycan, a growth factor, an antibiotic, or a glycoprotein.
Claim 11
Dependent Claim
67 words
A hand augmentation device comprising a dry matrix which contains at least 75% by weight biocompatible and bioresorbable biopolymeric fibers, and has a height of 0.5 cm to 1.5 cm, a width of 1 cm to 2 cm, a depth of 1 cm to 2 cm, a density of 0.15 g/cm 3 to 0.3 g/cm 3 , and a pore size of 100 μm to 200 μm.
Claim 12
Dependent Claim
67 words
A hand augmentation device comprising a dry matrix which contains at least 75% by weight biocompatible and bioresorbable biopolymeric fibers, and has a height of 0.5 cm to 1.5 cm, a width of 1 cm to 2 cm, a depth of 1 cm to 2 cm, a density of 0.15 g/cm 3 to 0.3 g/cm 3 , and a pore size of 100 μm to 200 μm.
Claim 13
Dependent Claim
15 words
The device of claim 10, wherein said biopolymeric fibers are collagen fibers or polysaccharide fibers.
Claim 14
Dependent Claim
12 words
The device of claim 11, wherein said biopolymeric fibers are collagen fibers.
Claim 15
Dependent Claim
14 words
The device of claim 11, further comprising a bioactive substance dispersed in said matrix.
Claim 16
Dependent Claim
20 words
The device of claim 13, wherein said bioactive substance is a glycosaminoglycan, a growth factor, an antibiotic, or a glycoprotein.
Claim 17
Dependent Claim
14 words
The device of claim 12, further comprising a bioactive substance dispersed in said matrix.
Claim 18
Dependent Claim
20 words
The device of claim 15, wherein said bioactive substance is a glycosaminoglycan, a growth factor, an antibiotic, or a glycoprotein.
Claim 19
Dependent Claim
14 words
The device of claim 10, further comprising a bioactive substance dispersed in said matrix.
Claim 20
Dependent Claim
20 words
The device of claim 17, wherein said bioactive substance is a glycosaminoglycan, a growth factor, an antibiotic, or a glycoprotein.
Claim 21
Dependent Claim
40 words
A method of fabricating a hand augmentation device of claim 1 comprising: obtaining biocompatible and bioresorbable biopolymeric fibers in an aqueous dispersion; coacervating said dispersed fibers; molding said coacervated fibers; freeze-drying said molded fibers; and molecularly crosslinking said dried fibers.
Claim 22
Dependent Claim
53 words
A method of using a hand augmentation device of claim 1 comprising: resecting diseased tissue from a bone of a hand; forming an implant from the device to have a size and shape substantially the same as the resected tissue; and securing the formed implant to the bone to replace the resected tissue.
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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) | 2001-04-06 | 2001-10-06 | 2002-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-04-06 | 2005-10-06 | 2006-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-04-06 | 2009-10-06 | 2010-04-07 | $7700.00 | Window Closed / Lapsed |