Optimization of BPH treatment using LEP (laser enucleation of prostate)
US11419679B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2019 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Apr 12, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/061
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus for the treatment of a target tissue with a laser beam in which the target tissue is immersed in a liquid medium within a body lumen. The laser device is configured to provide one or more laser pulses which are configured by a controller to have an energy sufficient to form one or more vapor bubbles in the liquid medium at the distal delivery end of the fiber. The one or more pulses are configured by the controller to: first, cause a vapor bubble to be formed distally of the distal end portion of the endoscope and around the distal delivery end of the optical fiber; second, cause a second bubble to be formed distally of the first bubble; and, third, inflate the second bubble as the first bubble has begun to collapse to expand an amount sufficient to displace a substantial portion of the liquid medium from the space between the distal delivery end of the fiber and the target tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.