RAJAM RAMAMURTHY, M.D.
Medical Practice at Floyd Curl Dr, San Antonio, TX

4611998, Sep 16, 1986

Dec 8, 1980

6/214437

Rajam S. Ramamurthy - San Antonio TX

Board of Regents, University of Texas System - Austin TX

G09B 2332

434265

An infant-sized mannequin is provided for use in training or practicing cardiopulmonary resuscitation involving synchronized insufflation and external cardiac massage manipulations. The mannequin is provided with lung-simulating structure, including a pressure switch transducer actuated by insufflations applied to the mannequin and producing an electrical signal indicative of the rate and pressure of the applied insufflations. The mannequin is also provided with a plunger mechanism actuatable by cardiac massage manipulations applied to the mannequin. The plunger mechanism in turn actuates a potentiometer transducer which produces an electrical signal indicative of the rate and depth of cardiac massage. The electrical signals are conveyed by wire connections to a recorder producing separate record traces of cardiac massage action and insufflation, for providing a visual record of the several CPR parameters indicative of the performance skill of one performing CPR on the mannequin.