Laser pulse format for penetrating an absorbing fluid
US5321715A · kind A · utility
86Cited by
1References
37Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 4, 1993 |
| Grant date | Jun 14, 1994 |
| Priority date | — |
| Expiry date | May 4, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00176
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pulse format for a laser system is disclosed for maximizing the energy delivered to a target immersed in an absorbing liquid. A first pulse is generated having an energy sufficient to initiate the formation of a vapor bubble in the liquid medium adjacent the end of the delivery device. A second, high energy pulse is generated after the vapor bubble initiated by the first pulse has expanded an amount sufficient to displace the liquid between the delivery device and the target. In this manner, the second pulse is delivered directly to the target and little energy is lost to the liquid medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.