US5061267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balloon catheter for rechanneling stenoses in body passages, in particular of coronary and peripheral arterial vessels
Assignee: Individual
•
Filing: 1988-12-19
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Granted: 1991-10-29
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Expires: 2008-12-19
Abstract
Abstract A balloon catheter for rechanneling stenoses in body passages, in particular of coronary and peripheral arterial vessels, has a microwave antenna provided in the interior of the balloon, which antenna is connected to a microwave generator by way of a coaxial cable. By action of the microwaves on a microwave-absorbing dilatation liquid and/or a metallic coating on the envelope of the balloon, the catheter is heated and the vessel wall is subjected to thermal aftertreatment to prevent restenosis.
Inventors
- 👤 Andreas Zeiher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:37
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61B; A61B18/00; A61B18/04; A61B18/08; A61B18/082; A61B18/18; A61B18/1815; A61B17/00; A61B17/22; A61B2017/22001; A61B2017/22051; A61B2017/22062; A61M25/0021; A61M25/0023; A61M2025/0025; A61M25/0043; A61M2025/0063
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
97 words
A balloon catheter for rechanneling stenoses in body passages, in particular of coronary and peripheral arterial vessels, said catheter comprising a balloon having an interior through which a guide hose to be guided by a guide wire extends, said balloon including an inflation tube opening into the interior of the balloon, wherein a microwave antenna is located, said antenna coupled to a coaxial cable, the balloon including means for absorbing and/or shielding microwave radiation, and further wherein the guide hose consists of a readily deformable material and hence can be clamped off upon inflation of the balloon.
Claim 2
Dependent Claim
97 words
A balloon catheter for rechanneling stenoses in body passages, in particular of coronary and peripheral arterial vessels, said catheter comprising a balloon having an interior through which a guide hose to be guided by a guide wire extends, said balloon including an inflation tube opening into the interior of the balloon, wherein a microwave antenna is located, said antenna coupled to a coaxial cable, the balloon including means for absorbing and/or shielding microwave radiation, and further wherein the guide hose consists of a readily deformable material and hence can be clamped off upon inflation of the balloon.
Claim 3
Dependent Claim
46 words
A balloon catheter of claim 1 including a pressure sensor means for generating a signal when the internal balloon pressure exceeds a predetermined threshold, whereby the microwave generator is controllable so as to be switched on only at sufficient pressure to squeeze the guide hose flat.
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) | 1994-10-28 | 1995-04-29 | 1995-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-28 | 1999-04-29 | 1999-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-28 | 2003-04-29 | 2003-10-29 | $7700.00 | Window Closed / Lapsed |