Heart-synchronized vacuum-assisted pulsed laser system and metho

Details Heart-synchronized vacuum-assisted pulsed laser system and metho Heart-synchronized vacuum-assisted pulsed laser system and metho

1990-09-24

1992-06-30

Shay, David M.

Surgery

Instruments

Light application

606 19, 128395, 372 25, 372 38, 372 58, 372 59, A61B 1736

Patent

active

051259249

ABSTRACT:
A heart-synchronized vacuum-assisted pulsed laser technique generates a valve control signal in response to the ECG of a beating heart which is to be synchronized with the laser; the valve control signal is applied to a valve to open it and permit laser gas to be delivered to the gas inlet of the laser assisted by the draw from a vacuum source at the gas outlet of the laser, to produce a predetermined range of laser gas pressure in the laser; the valve control signal is ceased after the predetermined range of laser gas pressure has been reached to end the gas flow through the laser and enable the rebuilding of the vacuum in the vacuum source; and a laser firing signal is generated to fire the laser when the laser gas pressure is in the predetermined range.

REFERENCES:
patent: 4512762 (1985-04-01), Spears
patent: 4788975 (1988-12-01), Shturman et al.
patent: 4817111 (1989-03-01), Nilsen et al.
patent: 4862886 (1989-09-01), Clarke et al.
patent: 5041108 (1991-08-01), Fox et al.

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