Transducer for supersonic tumor curing instrument

A technology of tumor treatment machine and transducer, which is applied in the direction of ultrasonic therapy and treatment, which can solve the problems of small ultrasonic incident angle, burn and pain of human tissue, small ultrasonic emission area, etc., and achieve the effect of reducing sound intensity and eliminating pain
CN1416923AInactive Publication Date: 2003-05-14昆山吉立富软件信息有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
昆山吉立富软件信息有限公司
Publication Date
2003-05-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The transducer for supersonic tumor therapy instrument consists of spherical cap and piezoelectric crystals installed in the spherical cap. The piezoelectric crystals are powdered separately by HF signal source and form superlarge supersonic emitting surface of 800-1200 sq cm. The supersonic energy enters body in large incident angle of 80-120 deg. Compared with similar instrument with the same focus range and supersonic strength, the instrument has greatly reduced supersonic strength in skin and tissue in the transmission path and concentrated supersonic energy onto the disease focus. So, using the instrument in treatment needs no anaesthesia and produces no skin scald and pain.
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Description

Technical field

[0001] The invention relates to an ultrasonic transducer, in particular to a transducer of an ultrasonic tumor treatment machine with a super large area and a super large incident angle. technical background

[0002] At present, the ultrasound transducers of high-intensity focused ultrasound tumor treatment machines generally have the defects of small ultrasound emission area and small ultrasound incident angle, which makes the emission energy too concentrated, and the energy per unit area perpendicular to the sound energy transmission direction is the sound intensity Too large, it is easy to cause burns and pains on the skin interface and human tissues on the transmission path Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an ultrasonic transducer with a large ultrasonic emission area and a large ultrasonic incident angle, which can be applied to a high-intensity focused ultrasound tumor treatment mach...

Claims

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