Atherectomy catheter having axially-disposed cutting edge
US5242460A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1990 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Oct 25, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/320783
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Atherectomy catheters are described having a cylindrical cutting head rotatably mounted at the distal end of a catheter body. The head has an axially elongated aperture and an open interior. A severing means is disposed adjacent the elongated aperture such that atheromatous material invaginated by the head is severed and diverted into the interior of the head. A preferred embodiment has the elongated aperture helically-disposed about the central axis of the cylindrical head and a cutting means formed integrally along the periphery of the aperture. Another preferred embodiment has the cylindrical head provided with a tapered distal end that extends distally from a housing for the head and incorporates an extension of the elongated aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.