Suction device with jet boost
OwnerMichael Joffeinventor
Life of this patent
Estimating the term…
Abstract
A device for evacuating ablation products of tissue ablated with a pulse laser beam. A gas is forced through at least one compressed gas jet nozzle. An evacuation nozzle is spaced apart from the compressed gas jet nozzle and a pulse laser beam passes in between the jet nozzle and the evacuation nozzle to illuminate and ablate tissue. A vacuum system provides a vacuum at the evacuation nozzle sufficient to provide a vacuum mass flow rate substantially greater than the compressed gas mass flow rate so that the products of the ablation are entrained in gas exiting the gas jet nozzles and evacuated along with the gas through the evacuation nozzle.
Claims11
A plume suction device for evacuating plume products produced in an open air operation, said device comprising:
- a) at least one evacuation orifice;
- b) at least one compressed gas jet nozzle spaced apart from said at least one evacuation orifice and located so as to direct compressed gas toward said evacuation orifice;
- c) a compressed gas source means for providing a compressed gas flow defining a compressed gas mass flow rate to said at least one compressed gas jet nozzle, wherein said device is configured to contain plumes produced by a pulse laser and further comprising a synchronizing compressed gas control means for synchronizing said compressed gas flow with pulses from said pulse laser, and
- d) a suction means for providing a vacuum mass flow rate through said evacuation orifice substantially greater than said compressed gas mass flow rate,
- wherein said plume suction device when positioned with said evacuation orifice and said jet nozzle on opposite sides of a plume, products of said plume are entrained in gas exiting said gas jet nozzle and evacuated along with said gas through said evacuation orifice.
Dependencies are inferred from the claim text.