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Ultrasound tumor therapeutic system doubling focusing apparatus

A technology of tumor treatment and focusing device, which is applied in the direction of ultrasonic therapy and treatment, which can solve the problems of large focal spots and the inability of ultrasonic waves to truly converge, and achieve the effect of overcoming large focal spots

Inactive Publication Date: 2008-10-15
SHENZHEN LANDWIND IND
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a double focusing device of an ultrasonic tumor treatment system, which overcomes the defect that the double focusing device of the prior art has a large focal spot formed by ultrasonic focusing, and the ultrasonic waves cannot really converge at one point.

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  • Ultrasound tumor therapeutic system doubling focusing apparatus
  • Ultrasound tumor therapeutic system doubling focusing apparatus
  • Ultrasound tumor therapeutic system doubling focusing apparatus

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Embodiment Construction

[0018] Below according to accompanying drawing and embodiment the present invention will be described in further detail:

[0019] Such as figure 2 with image 3 As shown, the double focusing device of the present invention includes a spherical crown body 1 with an inner surface curvature radius R, eight ultrasonic piezoelectric transducers 2, and a part of the ultrasonic piezoelectric transducers 2 is installed in the installation hole of the spherical crown body. Ultrasonic piezoelectric transducer 2 comprises piezoelectric chip, and the concave end face 21 of piezoelectric chip is placed in the outside of the mounting hole of spherical cap, and wherein concave end face 21 is a regular curved surface, and its radius of curvature is Rr, and Rr is greater than R, under the excitation of the ultrasonic power source, the ultrasonic piezoelectric transducer emits ultrasonic waves, which converge at a point whose distance from the center point of the wafer is Ra.

[0020] The cu...

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Abstract

The invention relates to a double focusing apparatus of an ultrasound tumor-treating system which comprises a ball-crown body, an ultrasonic power source and an ultrasonic piezoelectric transducer. The ultrasonic power source is connected with the ultrasonic piezoelectric transducer which comprises a piezoelectric wafer provided with a concave head face. The apparatus is characterized in that at least one mounting hole is arranged on the ball-crown body; one part of the ultrasonic piezoelectric transducer is arranged in the mounting hole, and the concave head face of the piezoelectric wafer thereof is arranged outside the mounting hole. The concave head face of the piezoelectric wafer is arranged outside the mounting hole, the curvature radius of the concave head face of the piezoelectric wafer is limited to be larger than that of the ball-crown body so as to lead the ultrasonic that is sent by the ultrasonic piezoelectric transducer to be point-focused really, so that the disadvantage of a biggish focal spot formed by the ultrasonic focusing by using the double focusing apparatus of the prior art is overcome.

Description

technical field [0001] The invention relates to an ultrasonic focusing device, in particular to a dual focusing device for a high-intensity focused ultrasonic tumor treatment system. Background technique [0002] The dual focusing device of the high-intensity focused ultrasound tumor treatment system in the prior art includes a spherical crown, an ultrasonic power source and an ultrasonic piezoelectric transducer, the ultrasonic power source is connected to the ultrasonic piezoelectric transducer, and the ultrasonic piezoelectric transducer includes A piezoelectric chip with a concave end face. The piezoelectric chip of the ultrasonic piezoelectric transducer is distributed in the mounting hole on the inner wall of the spherical crown, and its concave end face is also located inside the mounting hole. The ultrasonic power source excites the ultrasonic piezoelectric transducer Ultrasonic waves emitted by different ultrasonic piezoelectric transducers are focused on certain po...

Claims

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Application Information

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IPC IPC(8): A61N7/02A61N7/00
Inventor 孟国海李全凯
Owner SHENZHEN LANDWIND IND
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