US5556428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for promoting growth and repair of soft tissue
Assignee: Individual
•
Filing: 1993-09-29
•
Granted: 1996-09-17
•
Expires: 2013-09-29
Abstract
Abstract Apparatus and method for inducing growth of soft tissues including skin, ligaments, tendons, blood vessels, and spinal cord which includes a tensioned spring causing the application of force on the soft tissue in the direction of the desired growth. The device also includes means for attaching the tensioned spring to the tissue and means for maintaining tension on the spring as the tissue grows.
Inventors
- 👤 Mrugesh K. Shah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:41
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/08; A61F2/0811; A61B; A61B17/00; A61B17/11; A61B17/1146; A61B90/00; A61B90/02; A61B2017/00017; A61F2002/0817; A61F2002/0823; A61F2002/0829; A61F2002/0847; A61F2002/087; A61F2002/0876; A61F2002/0888; A61F2250/00; A61F2250/0004; A61F2250/0012
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
110 words
A removable biocompatible device for promoting growth of soft tissue comprising: spring means having a first end and a second end: attachment means for removably securing said first end of said spring means to a soft tissue; fixation means for removably securing said second end of said spring means to a second point, such that tension is created by the spring means in the soft tissue, and in a direction along a line drawn from the attachment means to the second point, wherein: the spring means include at least one pair of opposed coils, and said pair of opposed coils winds up in response to growth of attached soft tissue.
Claim 2
Dependent Claim
110 words
A removable biocompatible device for promoting growth of soft tissue comprising: spring means having a first end and a second end: attachment means for removably securing said first end of said spring means to a soft tissue; fixation means for removably securing said second end of said spring means to a second point, such that tension is created by the spring means in the soft tissue, and in a direction along a line drawn from the attachment means to the second point, wherein: the spring means include at least one pair of opposed coils, and said pair of opposed coils winds up in response to growth of attached soft tissue.
Claim 3
Dependent Claim
14 words
The device of claim 1, wherein the spring means is a fixed coil sprang.
Claim 4
Dependent Claim
14 words
The device of claim 2, wherein the fixed coil spring exerts a constant force.
Claim 5
Dependent Claim
16 words
The device of claim 2, further comprising: adjustment means for adjusting the tension in the spring.
Claim 6
Dependent Claim
52 words
A method for inducing growth of soft tissue comprising: attaching the device of claim 1 to soft tissue such that tension applied to the soft tissue by the spring means results in elongation of the soft tissue in a direction along a line drawn between the attachment means and the fixation means.
Claim 7
Dependent Claim
25 words
A method for preparing graft tissue comprising: elongating soft tissue by the method of claim 5; and excising elongated tissue for use on grafting tissue.
Claim 8
Dependent Claim
23 words
The device of claim 1, wherein the attachment means is from the group consisting of surgical hooks, staples, sutures, collars, clamps and clips.
Claim 9
Dependent Claim
22 words
The device of claim 1, wherein the spring means automatically maintains tension on the soft tissue as the attached soft tissue grows.
Claim 10
Dependent Claim
23 words
The device of claim 1, wherein the spring means automatically maintains constant force on the soft tissue as the attached soft tissue grows.
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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) | 1999-09-17 | 2000-03-18 | 2000-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-17 | 2004-03-18 | 2004-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-17 | 2008-03-18 | 2008-09-17 | $7700.00 | Window Closed / Lapsed |