Catheter system with working portion radially expandable upon rotation
US6375654B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 2000 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | May 19, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/2261
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter system is formed of a two-lumen rotatable shaft with a working tube extending through one of the lumens and an energy emitting element coupled to the other lumen. Rotation and movement distally of the rotatable shaft, coils the energy emitting element and expands the overall profile of the catheter system. Energy emitted through the coiled energy emitting element provides circular lesions for circumferential treatment on desired tissue. Counter rotating and retracting of the rotatable shaft returns the catheter system to a sleek profile for removal of the catheter system from the biological vessel area. A light diffusing tip with reflective sheath is utilized as the energy emitting element and focuses energy on the target tissue and away from surrounding blood pool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.