Vascular dilation catheter construction
US5041089A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1988 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Sep 8, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0119
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved vascular dilation catheter comprises an involuted tubular structure including outer and inner tubular walls which extend the entire length of the catheter. The outer tubular wall is enlarged at a distal end of the catheter to form a dilation balloon, and extends back the remaining length of the flexible tube at a reduced diameter to define an annular lumen which is used to inflate the balloon. Alternatively, the outer tubular wall may conform to the exterior of the inner tubular wall and separate axial lumens may be provided for inflation. By providing means for heating inflation medium within the balloon, the catheter may be utilized for performing thermal ablation therapy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.