Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Lithotripter with locating system integrated therewith and method for its use










Image Number 2 for United States Patent #4834106.

A lithotripter for disintegrating a calculus in the body of a patient has a shock wave source which emits shock wave pulses which are focussed to the calculus by an acoustic lens. As seen in the propagation direction of the shock wave pulses, a semi-transmissive acoustic mirror is disposed in front of the acoustic lens at a fixed angle. An ultrasound transducer, which is part of an ultrasound locating system, such as an ultrasound sector scanner, is disposed laterally with respect to the acoustic mirror, so that ultrasound waves are transmitted by the transducer to the calculus, and the reflected waves are transmitted from the calculus to the transducer, reflected by the acoustic mirror. Shock wave pulses from the shock wave source are only minimally impeded by the mirror, so that the therapy is substantially uninfluenced by the presence of the mirror. The ultrasound signals are used to identify the position of the calculus in the patient, so that the position can be continuously observed, even during the time in which the shock pulses are acting on the calculus. The approach path of the shock wave pulse to the calculus can also be ultrasonically monitored.








 
 
  Recently Added Patents
Hybrid interconnect scheme including aluminum metal line in low-k dielectric
Polyurethane resin, toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
Buck converter having reduced ripple under a light load
Vehicle hood
Device and method for processing input data of protective relay
Oscillator circuit which compensates for external voltage supply, temperature and process
Fast port switching in an audiovisual receiver by use of port pre-authentication by a partial PHY decoder core
  Randomly Featured Patents
Metal mesh head covering
Automatic pipe welding apparatus
Preparation of alkynediols
Digital circuit for suppressing fast signal variations
Method for making an article of partially crystalline organic resin
Chair
Method of ensuring a correct lateral registration setting and printing machine suitable therefor
Thin and heat radiant semiconductor package and method for manufacturing
X-ray tube anode with alloyed surface and method of making the same
4-Oxo-PGI.sub.2 compounds, their use in inhibition of thrombii and their production