US PATENT SUBCLASS 600 / 442
.~.~.~ Tissue attenuation or impedance measurement or compensation

Current as of: June, 1999
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600 /   HD   SURGERY

300  DF  DIAGNOSTIC TESTING {38}
407  DF  .~ Detecting nuclear, electromagnetic, or ultrasonic radiation {11}
437  DF  .~.~ Ultrasonic {10}
442.~.~.~ Tissue attenuation or impedance measurement or compensation

DEFINITION

Classification: 600/442

Tissue attenuation or impedance measurement or compensation:

(under subclass 437) wherein the ultrasonic means measures tissue attenuation or the resistance of the body to the flow of the ultrasonic radiation and produces either a measurement of a body region or the said ultrasonic means is adjusted or compensated for attenuation effects.