Surgery – Instruments – Electrical application
Patent
1990-04-27
1992-06-16
Pellegrino, Stephen C.
Surgery
Instruments
Electrical application
606 42, 606 49, 128401, 128804, A61B 1739
Patent
active
051221373
ABSTRACT:
Radiofrequency medical devices for ohmic heating of tissue of a patient include a temperature sensor carried by and in thermally conductive relationship with a thermally conductive electrode. The sensor is connected for feedback to a control circuit that modulates RF power applied to the electrode according to the signal received from the temperature sensor. The control circuit and RF power supply alternate between two operating modes. In the first mode the RF power supply applies RF power to the electrode. In the second mode the control circuit senses a signal from the temperature sensor in the absence of RF signal. The control circuit compares the signal from the temperature sensor to a set value and modulates the RF power applied to the electrode in accordance with the set value.
REFERENCES:
patent: 1885106 (1932-11-01), Briggs
patent: 3634652 (1972-01-01), Shimizu et al.
patent: 3798967 (1974-03-01), Gieles et al.
patent: 3895635 (1975-07-01), Justus et al.
patent: 3960141 (1976-06-01), Bolduc
patent: 4071028 (1978-01-01), Perkins
patent: 4092986 (1978-06-01), Schneiderman
patent: 4121590 (1978-10-01), Gonser
patent: 4126137 (1978-11-01), Archibald
patent: 4142529 (1979-03-01), Letenser et al.
patent: 4160455 (1979-07-01), Law
patent: 4196734 (1980-04-01), Harris
patent: 4204549 (1980-05-01), Paglione
patent: 4217910 (1980-08-01), Khalil
patent: 4227535 (1980-10-01), Connor
patent: 4228809 (1980-10-01), Paglione
patent: 4240441 (1980-12-01), Khalil
patent: 4303073 (1981-01-01), Archibald
patent: 4311154 (1982-01-01), Sterzer et al.
patent: 4346716 (1982-08-01), Carr
patent: 4397314 (1983-08-01), Vaguine
patent: 4446874 (1984-05-01), Vaguine
patent: 4449528 (1984-05-01), Auth et al.
patent: 4522194 (1985-06-01), Normann
patent: 4543090 (1985-09-01), McCoy
patent: 4574801 (1986-03-01), Manes
patent: 4580562 (1986-04-01), Goof et al.
patent: 4582057 (1986-04-01), Auth et al.
patent: 4587975 (1986-05-01), Salo et al.
patent: 4612940 (1986-09-01), Kasevich
patent: 4646737 (1987-03-01), Hussein
patent: 4662368 (1987-05-01), Hussein
patent: 4672962 (1987-06-01), Hershenson
patent: 4685459 (1987-08-01), Koch et al.
patent: 4695697 (1987-09-01), Kosa
patent: 4754752 (1988-07-01), Ginsburg et al.
patent: 4955377 (1990-09-01), Lennox et al.
Werts et al., "Thermistor Artifacts Using the MA-251 Microwave Interstitial Antenna" (abstract), 1988.
Astrahan et al., Temp. Meas. from MW Antenna, Mar. 3, 1988, pp. 23-25.
Brezovich et al, A Practical System for Clinical Radiofrequency Hyperthermia, Mar. 1981, pp. 423-443.
Gilbert et al., Nonsurgical Management of Acute Nonvariceal Upper Gastrointestinal Bleeding, pp. 349-395.
Haines et al., Tissue Heating During Radiofrequency Catheter Ablation, Jun. 1989, pp. 962-973.
Loshek, Pulsed Microwave Thermometry, 1980, pp. 517-519.
The Luxtron Corp., Small Business Innovation Research Program, 1984, pp. 1-4.
Protell et al., The Heater Probe, 1978, p. 257.
Samaras, Correction of Microwave-Induced Thermistor Sensor Errors, 1983, pp. 326-332.
Szwarnowski, A Thermometer for Measuring Temperatures in the Presence of Electromagnetic Fields, 1983, pp. 79-84.
Zeiher et al. A Prototype RF-Heated "Hot Balloon" PTCA-Catheter, Oct., 1988, Article 1181.
Boston Scientific Corporation
Pellegrino Stephen C.
Shumaker Steven J.
LandOfFree
Temperature controlled RF coagulation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Temperature controlled RF coagulation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature controlled RF coagulation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1750894