Interventional catheters incorporating an active aspiration system
US7713235B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2007 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Mar 21, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2217/007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An interventional catheter assembly comprises an operating head for removing obstructive material from a target site in a body lumen or cavity and at least one aspiration port located proximal to the operating head and penetrating the catheter assembly, the aspiration port being in communication with a sealed lumen that communicates with a vacuum system for withdrawing aspirate fluid and obstructive material from the target site. A rotatable member is positioned inside the catheter assembly at the site of the aspiration port and rotates during operation of the vacuum system. The rotatable member is provided with at least one upstanding bar that is sized to cooperate with the walls of the aspiration port and the inner surface of the catheter assembly to macerate debris that is drawn into the aspiration port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.