Hyperthermia heating apparatus
First Claim
1. An improved array of electrodes for use in delivering electromagnetic energy to a localized area of a patient'"'"'s body in a hyperthermic treatment so that said improved array of electrodes provides a uniform distribution of electromagnetic flux lines within the localized area of the patient'"'"'s body in order to produce a uniform and localized heating gradient, said improved array of electrodes comprising:
- a. a plurality of electrodes which are arranged in sets of electrodes, each of said sets of electrodes having two of said electrodes which are spaced a particular distance apart from each other, pairs of said sets of electrodes being spaced apart a distance which is relatively greater than said particular distance and arranged in oppositely disposed pairs whereby the localized area of the patient'"'"'s body is disposed between each of said sets of electrodes of each of said pairs of said sets of electrodes; and
b. electromagnetic energy means for applying electromagnetic energy to each of said pairs of said sets of electrodes.
1 Assignment
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Accused Products
Abstract
The present invention is an improved array of electrodes for use in delivering electromagnetic energy to a localized area of a patient'"'"'s body in a hyperthermic treatment so that it provides a uniform distribution of electromagnetic flux lines within the localized area of the patient'"'"'s body in order to produce a uniform and localized heating gradient. The improved array of electrodes includes a plurality of electrodes which are arranged in pair, with the electrodes in each pair being spaced a particular distance apart. The improved array of electrodes are driven by a balanced line system which is electromagnetically coupled to each pair of electrodes and which is shielded by a ground coaxial shield which itself is ground to the body of the patient. Each electrode is embedded in a Teflon stand-off in order to move the region of strong field, from the body, produced by rapidly changing potentials. The two pairs of electrodes forming a cross like geometry are used with the balanced line systems. The electrical power is either multiplexed among the electrodes or the second pair is driven by a potential which is sinusoidal and which is 90° out of phase with the first balanced line system which is also sinusoidal.
210 Citations
7 Claims
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1. An improved array of electrodes for use in delivering electromagnetic energy to a localized area of a patient'"'"'s body in a hyperthermic treatment so that said improved array of electrodes provides a uniform distribution of electromagnetic flux lines within the localized area of the patient'"'"'s body in order to produce a uniform and localized heating gradient, said improved array of electrodes comprising:
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a. a plurality of electrodes which are arranged in sets of electrodes, each of said sets of electrodes having two of said electrodes which are spaced a particular distance apart from each other, pairs of said sets of electrodes being spaced apart a distance which is relatively greater than said particular distance and arranged in oppositely disposed pairs whereby the localized area of the patient'"'"'s body is disposed between each of said sets of electrodes of each of said pairs of said sets of electrodes; and b. electromagnetic energy means for applying electromagnetic energy to each of said pairs of said sets of electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification