US PATENT SUBCLASS 600 / 495
.~.~.~.~.~ Pressure in inflatable occluder automatically raised above systolic pressure

Current as of: June, 1999
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600 /   HD   SURGERY

300  DF  DIAGNOSTIC TESTING {38}
481  DF  .~ Cardiovascular {6}
485  DF  .~.~ Measuring pressure in heart or blood vessel {3}
490  DF  .~.~.~ Force applied against skin to close blood vessel {6}
493  DF  .~.~.~.~ Electric signal generated by sensing means responsive to pulse or Korotkoff sounds {2}
495.~.~.~.~.~ Pressure in inflatable occluder automatically raised above systolic pressure {1}
496  DF  .~.~.~.~.~.~> Repeating pressurization cycle

DEFINITION

Classification: 600/495

Pressure in inflatable occluder automatically raised above systolic pressure:

(under subclass 493) Subject matter wherein pressure applied to an expandable means closes a blood vessel (e.g., an elastic, arm-encircling cuff), raising the systolic pressure in the blood-vessel without control by an operator.

(1) Note. In contrast with apparatus included in this subclass, a conventional sphygmomanometer has a bulb-type pump actuated by an operator to increase pressure in an inflatable arm band until Korotkoff sounds cannot be heard by means of a stethoscope. Apparatus included in this subclass generally includes Korotkoff sounds which cannot be heard by means of a stethoscope. Apparatus included in this subclass generally includes a Korotkoff sound or pulse detector which controls a means for pressurizing an inflatable arm band.