Harvard College

Gene A Grindlinger

Herbert B Hechtman

Richard E Justice

Apparatus for measuring papillary muscle contractility when subjected to electrical stimulus while immersed in a test bathing liquid includes a test chamber for maintaining the liquid at a controlled temperature and having a membrane for diffusion of oxygen into the liquid, arms for mounting a muscle specimen in the liquid, electrodes for providing an electrical stimulus, and a system for measuring the contractile response of the muscle when subjected to electrical stimulus.

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Brookline, MA, United States of America

Gene A Grindlinger