Abstract: The present invention relates to systems and methods for leveling a power supply current into a circuit that drives a pulsed load, such as a surgical cataract handpiece. According to various embodiments for current leveling of the present invention, the input current is leveled to regulate power being drawn from a power supply to prevent supply current surges that can: a) warrant a higher-rated supply; b) cause large voltage dips on a supply that supports other devices; or c) both.

Abstract: A surgical system for a liquefaction handpiece. The system uses a pressure sensing element located on the output side of the fluid pulse engine to read directly the pressure of the fluid pulse exiting the engine.

Abstract: A surgical handpiece having at least two lumens or tubes mounted to a body. At least one tube is used for aspiration and at least one other tube is used to inject heated surgical fluid for performing a surgical procedure, such as an ophthalmic or otic surgical procedure. A portion of the second tube may form a pumping chamber. The pumping chamber works by boiling a small volume of the surgical fluid. As the fluid boils, it expands rapidly, thereby propelling the liquid downstream of the pumping chamber out of the second tube. The pumping chamber may use a heating filament or a laser to heat the surgical fluid within the boiling chamber, thereby creating a pressure wave that travels down the second tube.

Abstract: An apparatus and method of determining when a container holding surgical fluid to be provided to a surgical handpiece, such as a liquefracture handpiece, is nearly exhausted is disclosed.

Abstract: An apparatus and method of determining when a container holding surgical fluid to be provided to a surgical handpiece, such as a liquefracture handpiece, is nearly exhausted is disclosed.