Ultra-high-speed extracorporeal ultrasound hyperthermia treatment device
First Claim
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1. In an extracorporeal ultrasound hyperthermia target treatment device comprising:
- a) means generating a treatment beam from an emitting surface; and
means locating a treatment beam target in a body;
b) means aiming and focusing said beam at said target at a focal spot;
the improvement comprising;
c) in said treatment beam generating means means for producing ultrasound wave trains at frequencies between about 1 MHz and about 6 MHz, as a function of frequency; and
peak electric powers between about 10 KW and 1 KW, as a function of frequency; and
peak acoustic powers between about 3 KW and 200 watts, as a function of frequency;
which produce acoustic intensity at the focal spot between about 100 KW and 10 KW per square centimeter, as a function of frequency, for less than about three seconds.
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Abstract
An extracorporeal ultra-high-speed ultrasound hyperthermia treatment device adapted to enable focussed emission of ultrasound wave trains at frequencies between 0.5 and 10 MHz with peak powers between 10 kW and a few hundred watts, the parameters which define the concentration of the treatment beam in the focal spot and the power being determined so that, irrespective of the depth and the nature of the tissue, the treatment time is in the order of that enabling significant destruction, preferably total destruction, of the target during the linear part of a curve showing the temperature increase as a function of time.
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8 Claims
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1. In an extracorporeal ultrasound hyperthermia target treatment device comprising:
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a) means generating a treatment beam from an emitting surface; and
means locating a treatment beam target in a body;b) means aiming and focusing said beam at said target at a focal spot;
the improvement comprising;c) in said treatment beam generating means means for producing ultrasound wave trains at frequencies between about 1 MHz and about 6 MHz, as a function of frequency; and
peak electric powers between about 10 KW and 1 KW, as a function of frequency; and
peak acoustic powers between about 3 KW and 200 watts, as a function of frequency;
which produce acoustic intensity at the focal spot between about 100 KW and 10 KW per square centimeter, as a function of frequency, for less than about three seconds. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification