RAYMOND S MARKOWITZ
Engineers in Melrose Park, PA
License number
Pennsylvania PE001353E
Category
Engineers
Type
Professional Engineer
Address
Address
Melrose Park, PA 19027
Professional information
Status Monitor For Anomaly Detection In Implanted Devices And Method
US Patent:
5683430, Nov 4, 1997
Filed:
Nov 16, 1995
Appl. No.:
8/559101
Inventors:
Raymond S. Markowitz - Elkins Park PA
Xiaoguang G. Sun - King of Prussia PA
Xiaoguang G. Sun - King of Prussia PA
Assignee:
AEL Industries, Inc. - Lansdale PA
International Classification:
A61N 137
US Classification:
607 27
Abstract:
A status monitoring system for evaluating the condition of an electrode implanted in the body of a mammal. The system comprises a modulator for modulating interrogation signals on an electrode of an implanted device, and a monitor for analyzing modulated interrogation signals being reflected by the electrode. The monitor comprises a transmitter for transmitting interrogation signals, a receiver for receiving and processing the signals reflected by the electrode, and a microprocessor for controlling the transmitter and the receiver. The microprocessor producing electrode condition data from the signals processed by the receiver. The invention further comprises a communication system in communication with the monitoring device for transmitting the electrode condition data to a remote location. The interrogation signals are transmitted by the transmitter onto the electrode. The interrogation signals are modulated on the electrode by combining with a modulation signal generated by the modulator.
Medical Telemetry System Using An Implanted Passive Transponder
US Patent:
5626630, May 6, 1997
Filed:
Oct 13, 1994
Appl. No.:
8/322852
Inventors:
Raymond S. Markowitz - Elkins Park PA
Robert E. Roy - Herndon VA
Xiaoguang G. Sun - King of Prussia PA
Robert E. Roy - Herndon VA
Xiaoguang G. Sun - King of Prussia PA
Assignee:
AEL Industries, Inc. - Lansdale PA
International Classification:
A61N 136
US Classification:
607 60
Abstract:
A telemetry system includes a remote monitoring station, a repeater worn externally by a patient and a quasi-passive transponder attached to a device implanted in the patient. The remote monitoring station communicates to the repeater to initiate an interrogation routine between the repeater and the transponder to extract patient condition information from the implanted device. When the repeater receives the condition information, it relays it to the remote monitoring station. The transponder is specially designed to operate with an extremely low level of power, less than 1 nW/baud, and to be compatible for attachment to existing implanted devices. The transponder can operate at a very high data rate, including a rate of about 100 kbps.