Vascular dilatation instrument and catheter
US5507766A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jan 26, 1994 |
| Grant date | Apr 16, 1996 |
| Priority date | — |
| Expiry date | Jan 26, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1079
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vascular dilatation instrument 1 includes an outer tube 2, an inner tube 5 extending through the outer tube 2, and an inflatable member 3 having one end attached to the inner tube 5 and another end attached to the outer tube 2. The outer tube 2 includes a superelastic or pseudoelastic metal tube 2b and a synthetic resin tube 2a covering the metal tube, the metal tube 2b having a distal zone provided with a slit or perforations 2e so that the distal zone is more flexible and deformable than the remainder of the metal tube. Also provided is a catheter 100 comprising a main body section which includes a superelastic metal tube 101 and a synthetic resin layer 104 covering the metal tube, the metal tube 101 having a distal zone provided with a slit or perforations 106 so that the distal zone is more flexible and deformable than the remainder of the metal tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.