PATENT CLAIM ANALYSIS

Application Number: 15973472
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-01
Patent Classification: ["607", "101000"]

Abstract:
A radio frequency annular phased array hyperthermia system providing a heated focal zone with a diameter of 3 cm or less in a tissue mass includes a plurality of at least 42 radio frequency energy applicators in three rings adapted to surround the tissue mass. A bolus having a dielectric constant is positioned between the energy applicators and the tissue mass. The energy applicators operate at a frequency of at least about 900 MHz. to create the heated focal zone. The circumferential spacing between adjacent applicators in each ring is less than a critical distance and spacing between adjacent side by side rings is also less than a critical distance with such critical distances being interdependent on the frequency of the energy radiated, the dielectric constant of the bolus, the size of the bolus, and the size of the tissue mass.

Claim (Index 1):
A radio frequency annular phased array hyperthermia system to provide a heated focal zone of diameter of about 3 cm or less in a selected position in a tissue mass, said hyperthermia system comprising:\n a bolus adapted to be positioned around the tissue mass in which the heated focal zone is to be provided to form an interface with the outer surface of the tissue mass, said bolus having a size and having a bolus media therein with a bolus media dielectric constant; a plurality of radio frequency energy radiator applicators positioned in three rings around the tissue mass in which the heated focal zone is to be provided and spaced by the bolus media a distance from the surface of the tissue mass, each radio frequency energy radiator applicator operable to radiate radio frequency signals of a predetermined frequency of 900 MHz or above through the bolus media into the tissue mass wherein the electric field of the radiated signals from each radio frequency energy radiator applicator are superimposed in a controlled manner to produce the heated focal zone in the selected position in the tissue mass, each radio frequency energy radiator applicator having a center and spaced substantially equally from respective adjacent radio frequency energy radiator applicators circumferentially around a respective ring of the three rings, wherein the radio frequency energy radiator applicators are spaced, the bolus is sized, and the bolus media dielectric constant is selected so that the distance between centers of respective adjacent radio frequency energy radiator applicators around a respective ring is no greater than 0.8 of the wavelength of the radio frequency signal of the predetermined frequency in the bolus media and the difference in phase at a bolus-tissue mass interface point between a radiated signal traveling through the bolus between the center of a radio frequency energy radiator applicator and the center of the tissue mass and a signal traveling through the bolus to that point from the center of an adjacent radio frequency energy radiator applicator is no more than 135 degrees, and the three rings of the radio frequency energy radiator applicators are spaced along an axis of the tissue mass so that respective radio frequency energy radiator applicators in each ring are aligned and have a longitudinal separation distance between adjacent aligned radio frequency energy radiator applicators no greater than 0.8 of the wavelength of the radio frequency signal of the predetermined frequency in the bolus media and the difference in phase at a bolus-tissue mass interface between signals from the center of aligned stacked radio frequency energy radiator applicators mid way between the rings is no more than 125 degrees.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 93.0
- Lexical Diversity: 2.12857
- Patent Class: 607.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14706909', '12154808', '13543611', '12646729', '12755185']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6547369303176709
- 35 USC 102 Novelty (BERT): 0.5835444465351164
- Combined Prediction Score: 0.6476176819394155
- Mean Citation Score: 313.43819
- Max Citation Score: 496.89935
- Similarity Product: 455.9263100042045

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test