US4638803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical apparatus for inducing scar tissue formation in a body
Assignee: Individual
•
Filing: 1984-11-30
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Granted: 1987-01-27
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Expires: 2004-11-30
Abstract
Abstract An inflatable balloon capable of being delivered to a site within a body via a catheter or the like, includes on its surface a composition. The composition is capable of inducing the formation of a thrombosis followed by invasion of capillaries and fibroblasts to the thrombosis and subsequent scar formation. Scar formation fixedly adheres the balloon at its placement site to permanently locate the balloon at this placement site.
Inventors
- 👤 Robert W. Rand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:55
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12131; A61B17/12136; A61B17/12099; A61B17/12109; A61B17/12113
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
130 words
A process of adhering an inflatable medical balloon within a human body which comprises: incorporating onto at least the outside surface of said balloon a composition having the property of inducing the formation of thrombosis followed by capillary and fibroblast invasion of the thrombosis and subsequent scar tissue formation, said composition being chosen from the group consisting of iron, copper, tantalum, gold, silver, platinum, chromium and their derivatives; locating said balloon having said composition on its surface within said human body; maintaining said balloon in a position within said body for a period of time sufficient such that said composition induces said formation of said thrombosis and said capillary and fibroblast invasion and subsequent scar tissue formation in an area within said body adjacent to said position of said balloon.
Claim 2
Dependent Claim
130 words
A process of adhering an inflatable medical balloon within a human body which comprises: incorporating onto at least the outside surface of said balloon a composition having the property of inducing the formation of thrombosis followed by capillary and fibroblast invasion of the thrombosis and subsequent scar tissue formation, said composition being chosen from the group consisting of iron, copper, tantalum, gold, silver, platinum, chromium and their derivatives; locating said balloon having said composition on its surface within said human body; maintaining said balloon in a position within said body for a period of time sufficient such that said composition induces said formation of said thrombosis and said capillary and fibroblast invasion and subsequent scar tissue formation in an area within said body adjacent to said position of said balloon.
Claim 3
Dependent Claim
22 words
The process of claim 1 wherein: said composition is chosen from the group consisting of iron, copper and tantalum, and their derivates.
Claim 4
Dependent Claim
15 words
The process of claim 1 wherein: said inflatable balloon is formed from a supple material.
Claim 5
Dependent Claim
12 words
The process of claim 3 wherein: said material comprises an elastomeric material.
Claim 6
Dependent Claim
14 words
The process of claim 4 wherein: said material comprises a vulcanized silicone and latex.
Claim 7
Dependent Claim
12 words
The process of claim 5 wherein: said material comprises a vulcanized silicone.
Claim 8
Dependent Claim
21 words
The process of claim 1 wherein: said composition is present in a particle site range of about 5 microns and smaller.
Claim 9
Dependent Claim
66 words
A medical balloon which comprises: an inflatable balloon formed from an elastomeric material; a composition present on at least the outside surface of said balloon, said composition chosen from the group consisting of iron, copper, tantalum, gold, silver, platinum, chromium and their derivatives whereby said composition is capable of inducing the formation of thrombosis followed by invasion of capillaries and fibroblasts and subsequent scar tissue formation.
Claim 10
Dependent Claim
66 words
A medical balloon which comprises: an inflatable balloon formed from an elastomeric material; a composition present on at least the outside surface of said balloon, said composition chosen from the group consisting of iron, copper, tantalum, gold, silver, platinum, chromium and their derivatives whereby said composition is capable of inducing the formation of thrombosis followed by invasion of capillaries and fibroblasts and subsequent scar tissue formation.
Claim 11
Dependent Claim
15 words
The balloon of claim 8 wherein: said elastomeric material is a silicone elastomer or latex.
Claim 12
Dependent Claim
22 words
The balloon of claim 9 wherein: said composition is chosen from the group consisting of iron, copper and tantalum and their derivates.
Claim 13
Dependent Claim
10 words
The balloon of claim 10 wherein: said composition is iron.
Claim 14
Dependent Claim
11 words
The balloon of claim 11 wherein: said composition is carbonyl iron.
Claim 15
Dependent Claim
20 words
The balloon of claim 12 wherein: said carbonyl iron is present in a particle size of 5 microns or smaller.
Claim 16
Dependent Claim
12 words
The balloon of claim 9 wherein: said material comprises a vulcanized silicone.
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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) | 1990-01-26 | 1990-07-28 | 1991-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-26 | 1994-07-28 | 1995-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-26 | 1998-07-28 | 1999-01-27 | $7700.00 | Window Closed / Lapsed |