Location History:
- Cleveland Hts., OH (US) (1983)
- Cleveland Heights, OH (US) (1984 - 1999)
Company Filing History:
11 out of 1,041 
4 out of 7 
1 out of 832,912 Years Active: 1983-1999
Title: Innovations by John H. Petre
Introduction
John H. Petre is a notable inventor based in Cleveland Heights, OH (US). He has made significant contributions to the field of medical technology, particularly in cardiac volume measurement. With a total of 12 patents to his name, Petre's work has advanced the understanding and treatment of cardiac conditions.
Latest Patents
Among his latest patents is a method and apparatus designed to correct for electric field non-uniformity. This innovative method involves positioning a catheter within a blood-filled chamber of a patient's heart. The catheter features an elongated body with a distal end, a proximal end, and multiple spaced electrodes. These electrodes are strategically arranged to define volume segments within the chamber. The method includes providing a constant alternating current to the electrodes, measuring the potential between pairs of electrodes, and determining correction factors to account for field non-uniformity.
Another significant patent addresses electric current leakage. This method also involves positioning a catheter in a patient's heart and utilizing alternating currents at different frequencies to measure potential differences. By analyzing these measurements, the corrected volume of each segment can be determined, accounting for variations in tissue conductance.
Career Highlights
Throughout his career, John H. Petre has worked with esteemed organizations such as the Cleveland Clinic Foundation and Marquette Medical Systems. His experience in these institutions has allowed him to develop and refine his innovative techniques in cardiac measurement.
Collaborations
Petre has collaborated with notable colleagues, including Balakrishnan Gopakumaran and Peter K. Osborn. These partnerships have contributed to the advancement of his research and the successful implementation of his inventions.
Conclusion
John H. Petre's contributions to medical technology, particularly in cardiac volume measurement, have had a profound impact on the field. His innovative patents and collaborations reflect his dedication to improving patient care and advancing medical science.