Batteries: thermoelectric and photoelectric – Thermoelectric – Having housing – mounting or support
Patent
1999-02-22
2000-07-25
Gorgos, Kathyrn
Batteries: thermoelectric and photoelectric
Thermoelectric
Having housing, mounting or support
H01L 3502
Patent
active
060938838
ABSTRACT:
A method of treatment by ultrasound comprises providing a first, ultrasound field intensity-to-voltage transducer sized for insertion into the vicinity of a treatment site and a second ultrasound treatment transducer. The free field intensities created by the second transducer in response to various second transducer exciting signal levels are determined. The first transducer outputs in the free field in response to various second transducer exciting signal levels are also determined. The first transducer is inserted into the vicinity of the treatment site, and the second transducer is positioned to create an ultrasound field at the treatment site. The distance from the second transducer to the first transducer is determined. An exciting signal is applied to the second transducer. The output of the first transducer is determined. The level of the exciting signal applied to the second transducer, the determined distance and the first transducer output are employed to determine the attenuation coefficient of the tissues between the second transducer and the first transducer.
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Fry Francis J.
Hennige Carl W.
Sanghvi Narendra T.
Zanelli Claudio I.
Focus Surgery Inc.
Gorgos Kathyrn
Parsons Thomas H.
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