Method of making an angioplasty balloon catheter
US6364894B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2000 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Jun 12, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1093
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A balloon catheter for medical treatment of a patient has a proximal hub, flexible catheter shaft, a balloon, and an improved tip design. The catheter defines a guidewire lumen defined by a tubular inner body extending from a distal guidewire port to a proximal port located at a position proximal from the balloon. The guidewire lumen preferably has a constant cross-sectional area from the distal guidewire port to the proximal end of the balloon. At least one marker band is affixed to the inner body at a location within the balloon. A distal leg of the balloon is affixed to the inner body and a location between the marker band and the distal end of the inner body. A portion of the inner body extending in the proximal direction from the marker band has a substantially constant inner lumen diameter. However, the inner body wall thickness tapers to a narrower tip wall thickness, extending from a location between the marker band and the balloon distal leg, to the distal end of the inner body. A distal portion of the distal leg is also preferably tapered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.