Laser modulation for coagulation
US9044255B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2010 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Aug 20, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/10038
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus has a pump module providing pump energy, a resonator and a controller. The resonator includes a gain medium receiving the pump energy from the pump module and producing light; reflective surfaces reflecting light produced by the gain medium back toward the gain medium; and a variable light attenuator receiving light produced by the gain medium. The controller controls the amount of light attenuated by the variable light attenuator such that the apparatus emits windows of pulses of laser light at spaced time intervals, each window containing a plurality of pulses of laser light and each interval between windows being larger than an interval between pulses within a window. The emitted windows of pulses of laser light heat tissue to a temperature that causes coagulation without vaporization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.