Spontaneous Beating of Heart Repair Patch (video) University of Washington Share Print E-Mail Loading video... Caption This heart repair patch was engineered from a mix of stem cells in the University of Washington laboratory of Dr. Charles Murry. The tissue patch is shown beating spontaneously and synchronously in a lab dish. Credit Charles Murry lab, University of Washington Usage Restrictions For news media and educational use only Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.