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
Forming nozzles
Membrane-supported catalysts and the process of oxidative dehydrogenation of ethane using the same
Capturing effort level by task upon check-in to source control management system
Prevention and treatment of amyloidogenic disease
Method and system for distributing and collecting fluids in a multi-stage column
Tire having a structural element reinforced with a hybrid yarn
Light projection unit, image reading device including same, and image forming apparatus including the image reading device
  Randomly Featured Patents
Focal plane shutter for cameras
Exponential noise distribution to optimize database privacy and output utility
Method of suppressing coke in endothermic fuel processing
Power actuator system for actuating a closure member
Boiler construction
Floribunda rose plant Carale
Controlled site epitaxy on silver halide grains
Communication system, including transmitting and receiving apparatus using a multi-carrier signal
Method and apparatus for designing the layout of circuit component patterns
Heat fuser roll and method of manufacture