Variable stiffness balloon catheter
US6322534A · kind A · utility
34Cited by
44References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 8, 1999 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Oct 8, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0054
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved balloon catheter which may be used for angioplasty or for placing a reinforcing stent into a human vessel which has a variable stiffness catheter portion for guiding the catheter through the vasculature. The catheter portion of the balloon catheter includes a relatively stiff shaft portion which is reinforced with braided layer and more flexible distal portion which is reinforced with a single helically wire coil so that the relatively stiff shaft portion may be advanced along a guidewire and the more flexible distal portion may be guided through the tortuous vasculature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.