Isaac Chang

Title: **Isaac Chang: Innovator in Cardiac Technology**

Introduction

Isaac Chang, based in Philadelphia, PA, has made significant contributions to the field of cardiac technology through his innovative inventions. With a total of three patents, his work focuses on improving methods for diagnosing and treating myocardial infarctions, potentially enhancing patient outcomes in cardiology.

Latest Patents

Chang's latest patents include groundbreaking methods for utilizing endocardial impedance to determine electrode-tissue interactions and tissue heating in beating hearts. The first patent outlines a method for locating infarcted myocardial tissue by inserting an impedance measuring tip of a catheter into either the left or right ventricle. This technique enables the measurement of impedance values at various locations within the heart chamber. By comparing these values to predetermined ranges, it becomes possible to identify infarcted areas and differentiate them from normal myocardium. Moreover, this method allows for the identification of the infarction border zone, a critical area responsible for arrhythmias, such as ventricular tachycardia. The invention also emphasizes the reduction or elimination of arrhythmia risks through the ablation of endocardium within the designated border zone, using the same catheter tip.

Similarly, the second patent presents a method of assessing tissue heating during the ablation process, again utilizing impedance measurements to ascertain the effectiveness and degree of tissue heating.

Career Highlights

Throughout his career, Isaac Chang has worked with respected institutions such as the Philadelphia Heart Institute and the University of Pennsylvania. His experience in these prestigious organizations has contributed to his innovative approach to cardiac healthcare.

Collaborations

Chang has collaborated with esteemed professionals in his field, including Francis E. Marchlinski and David S. Schwartzman. These collaborations have nurtured an environment of shared expertise, further enhancing the advancement of cardiac innovations.

Conclusion

Isaac Chang exemplifies the spirit of innovation within the medical field through his patents on methods related to endocardial impedance. His work not only contributes to current medical knowledge but also provides essential tools for improving the diagnosis and management of cardiac conditions, paving the way for enhanced patient care in the future.