Cardiac ablation instrument
US6558375B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2000 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Sep 8, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/2272
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is directed to a hand held cardiac ablation instrument and methods for irradiating a target ablation site. The instrument can include at least one light transmitting optical fiber and a light diffusing element to create a circumferential or curvilinear lesion. A handle is provided for manual application. The handle can be substantially coaxial or otherwise aligned with the center of the circumferential housing. Light travelling through the light transmitting optical fiber or fibers is scattered in a circular pattern by the light diffusing element. The light diffusing element can include a scattering medium, a reflective end cap, and a reflective surface diametrically opposed to the target ablation site, that interact to provide a substantially uniform distribution of laser radiation throughout the circular target region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.