Abstract: An ultrasonic imaging guidewire apparatus for ultrasonic diagnostic imaging of blood vessels, comprising: an elongated, flexible, catheter guide (10) having a plurality of electrical conductors, a transducer seat (11), attached to transducer seat (11) an ultrasonic transducer (14), a flexible distal guidewire (12). Distal guidewire (12) may be ended at its distal end with a protective ball (23). A rotary drive unit (28) for rotation of imaging guidewire together with transducer (14), and an electronic computer (30) for processing signals, obtained by reflecting ultrasonic pulses from tissue of the vessel surrounding transducer (14), into cross-sectional images of vessels.

Abstract: An ultrasonic imaging guidewire apparatus for ultrasonic diagnostic imaging of blood vessels, comprising: an elongated, flexible, catheter guide (10) having a plurality of electrical conductors, a transducer seat (11), attached to transducer seat (11) an ultrasonic transducer (14), a flexible distal guidewire (12). Distal guidewire (12) may be ended at its distal end with a protective ball (23). A rotary drive unit (28) for rotation of imaging guidewire together with transducer (14), and an electronic computer (30) for processing signals, obtained by reflecting ultrasonic pulses from tissue of the vessel surrounding transducer (14), into cross-sectional images of vessels.

Abstract: An ultrasonic handpiece for cataract surgery comprises a driver assembly (10), a housing (11), a nose part (13, 113) and an end or rear manifold (20) of one-piece construction. Housing (11) includes tubular parts (12, 12' and 14), which are concentrically assembled and attached to and between nose part (13, 113) and rear or end manifold (20). Nose part (13, 113) is provided with a plurality of integral front irrigation holes (19) and end manifold (20) with a plurality of integral irrigation holes (36a, 36b and 36c). The number and inclinations of the irrigation holes permit and maintain a uniform, gradual and substantially unimpeded and high volume flow of irrigation fluid from an irrigation luer fitting (2) into the annular space between tubular parts (12, 12' and 14), resulting in a fluid flow concentric with driver assembly (10) and inside housing (11), thus eliminating any need for external irrigation tubes of conventional handpieces.

Abstract: A sealing shaft (23) with a conical male surface (48) is seated in a female conical valve seat (15). Sealing shaft (23) is attached to a pole piece (13) which, when energized by a solenoid coil (30), causes the sealing shaft to be pulled away from valve seat (15), resulting in release of fuel. A hollow ultrasonic horn actuator assembly (54), having a tapered part (11), includes a plurality of crystal actuators (14) to generate and amplify ultrasonic vibrations and to disperse and atomize the fuel as it passes through a narrow opening (45) in ultrasonic horn actuator assembly (54). Tapered part (11) and a compression member (12) are held together by a threaded stud (19). Horn actuator assembly (54) is centered about a sealing shaft (23) for flow of the fuel around the sealing shaft and inside the horn actuator assembly for release to an intake manifold of an engine through small opening (45).