Heart synchronized pulsed laser system
US6595987B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1999 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Feb 11, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2218/006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A heart-synchronized pulsed laser system includes a laser; means for sensing the contraction and expansion of a beating heart to be synchronized with the laser; means, responsive to the means for sensing, for generating a trigger pulse; means for positioning the leading edge of the trigger pulse; means for positioning the leading edge of the trigger pulse during the contraction and expansion cycle of the heartbeat; means for defining the width of the trigger pulse to occur during the heartbeat cycle; and means responsive to the trigger pulse for firing the laser to strike the beating heart at the time indicated by the trigger pulse position and for the period indicated by the width of the trigger pulse. In addition, the invention feature a handpiece for a medical laser system comprising a barrel for having a passage for transmitting a laser beam and a contacting wall on one end of said barrel including an aperture in communication with the passage, a solid face extending radially outward from the aperture to the periphery of said contacting wall, and a knurled surface on the face for preventing movement of the contacting wall with respect to the heart wall during surgery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.