US5387225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dilatation catheter with transition member
Assignee: Boston Scientific Scimed Inc
•
Filing: 1991-12-12
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Granted: 1995-02-07
•
Expires: 2011-12-12
Abstract
Abstract A fixed wire balloon catheter for use in angioplasty includes an elongated flexible thin walled metal tube which carries an inflatable balloon at its distal end. A metal core member of smaller outer diameter than the metal tube is attached to the distal end of the tube to provide support for and guiding of the balloon section. The proximal end of the balloon is connected either to the distal end of the metal tube or to an intermediate waist tube, with the core extending distally from the metal tube through the balloon. The distal end of the balloon is secured to the core. A vent arrangement is provided to purge the catheter of gases prior to use.
Inventors
- 👤 Charles L. Euteneuer
- 👤 Peter T. Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:10
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0021; A61M25/0023; A61M25/0026; A61M25/0029; A61M25/01; A61M25/06; A61M25/0662; A61M25/10; A61M25/104; A61M2025/0034; A61M25/0043; A61M2025/0063; A61M25/0067; A61M25/0074; A61M2025/0079; A61M2025/0183; A61M2025/1043; A61M2025/1061; A61M2025/1077; A61M2025/1093; A61M25/0032; A61M25/0054
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
149 words
An angioplasty catheter comprising: a shaft segment defined by a metal tube, the shaft having a proximal end and a distal end; a balloon; a thermoplastic shaft segment connected between the distal end of the shaft and the balloon; the shaft segments having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a core member having varying flexibility along its length, part of the core member being disposed in the thermoplastic shaft segment and extending distally from a point of attachment proximate the distal end of said metal shaft through said balloon wherein the flexibility of said core member increases distally both within said thermoplastic shaft segment and said balloon; and, a tubular member wherein the core member comprises a solid wire core attached to said tubular member and said tubular member includes an end which defines an opening to the exterior of the catheter shaft.
Claim 2
Dependent Claim
149 words
An angioplasty catheter comprising: a shaft segment defined by a metal tube, the shaft having a proximal end and a distal end; a balloon; a thermoplastic shaft segment connected between the distal end of the shaft and the balloon; the shaft segments having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a core member having varying flexibility along its length, part of the core member being disposed in the thermoplastic shaft segment and extending distally from a point of attachment proximate the distal end of said metal shaft through said balloon wherein the flexibility of said core member increases distally both within said thermoplastic shaft segment and said balloon; and, a tubular member wherein the core member comprises a solid wire core attached to said tubular member and said tubular member includes an end which defines an opening to the exterior of the catheter shaft.
Claim 3
Dependent Claim
161 words
An angioplasty catheter comprising: a shaft segment defined by a metal tube, the shaft having a proximal end and a distal end; a balloon; a thermoplastic shaft segment connected between the distal end of the shaft and the balloon; the shaft segments having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a transition member comprising a solid core member, the core member having multiple sections of decreasing outer diameter in the distal direction, said sections of decreasing outer diameter lying within both said thermoplastic shaft segment and said balloon, part of the transition member being disposed in the thermoplastic shaft segment and connected proximate the distal end of said shaft segment and extending distally from the metal shaft through said balloon; and, a tubular member wherein the core member comprises a solid wire core attached to said tubular member and said tubular member includes an end which defines an opening to the exterior of the catheter shaft.
Claim 4
Dependent Claim
161 words
An angioplasty catheter comprising: a shaft segment defined by a metal tube, the shaft having a proximal end and a distal end; a balloon; a thermoplastic shaft segment connected between the distal end of the shaft and the balloon; the shaft segments having an inflation lumen defined therethrough to provide inflation pressure to the balloon; a transition member comprising a solid core member, the core member having multiple sections of decreasing outer diameter in the distal direction, said sections of decreasing outer diameter lying within both said thermoplastic shaft segment and said balloon, part of the transition member being disposed in the thermoplastic shaft segment and connected proximate the distal end of said shaft segment and extending distally from the metal shaft through said balloon; and, a tubular member wherein the core member comprises a solid wire core attached to said tubular member and said tubular member includes an end which defines an opening to the exterior of the catheter shaft.
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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) | 1998-02-06 | 1998-08-08 | 1999-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-02-06 | 2002-08-08 | 2003-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-02-06 | 2006-08-08 | 2007-02-07 | $7700.00 | Window Closed / Lapsed |