Patents Assigned to Life Sciences, Inc.
  • Ocular plethysmograph
    Patent number: 4141346
    Abstract: An improved ocular plethysmograph for use in conjunction with known pulse volume recorders, and offering increased performance and simplicity as well as lower cost of manufacture. The device employs a means whereby a large DC pressure signal is cancelled across a very sensitive DC pressure transducer employed to detect directly the tiny pressure fluctuations resulting from minute volume plethysmic changes of the human ocular globe. The means employed provides secondary advantages in use.
    Type: Grant
    Filed: February 7, 1977
    Date of Patent: February 27, 1979
    Assignee: Life Sciences, Inc.
    Inventors: Robert C. Dean, Jr., Paul A. Hoisington, Brian F. Walsh, Frank E. Mastro
  • Direct readout real time physiological parameter analog computer
    Patent number: 4112491
    Abstract: A medical electronic diagnostic device particularly suitable for determining and displaying segmental pulsatile flow of a patient. Means are provided for stabilization of a calibrated segmental volume time curve relative to a baseline, so as to eliminate the effect of patient movement during testing, as well as miscellaneous electrical noise. The disclosed device is capable, in addition to displaying a pulse volume curve, of measuring and recording the pulsatile component of the total blood flow.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: September 5, 1978
    Assignee: Life Sciences, Inc.
    Inventor: Al Bugay