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
Fibrous laminate interface for security coatings
Lead with lead stiffener for implantable electrical stimulation systems and methods of making and using
Masking method and apparatus
High-performance AHCI interface
Carrying case
Mask and method for forming the mask
Modular utility rack
  Randomly Featured Patents
Combination stadium seat, cushion and cape carrying case
Quick-connection drive coupling for mixing tank
Bit rearranging unit for network data, method for rearranging bits, and software for enabling the same
Stereoscopic endoscope
Pigmented ABS polymer and polyamides
Topical fibrinogen complex
Air cooled slotter and slitter blade cutting edges
Production wells having permanent downhole formation evaluation sensors
Speech recognition
Video signal format converter