A kind of multi-frequency ultrasonic tumor therapy head

Abstract

The invention discloses a complex frequency ultrasonic tumor treatment head. The complex frequency ultrasonic tumor treatment head is characterized by comprising an ultrasonic transducer, the ultrasonic transducer comprises a double-end stud, a rear cover board, a front cover board and an insulation sleeve located on the middle section of the double-end stud, and the rear cover board and the front cover board are located on a front thread section and a rear thread section of the double-end stud respectively and compress a first insulation ceramic wafer, a rear piezoelectric ceramic stack, a second insulation ceramic wafer, a mass block, a third insulation ceramic wafer, a front piezoelectric ceramic stack and a fourth insulation ceramic wafer which are sequentially connected to the insulation sleeve in a sleeved mode. A signal generator is utilized for transmitting two signal frequencies, the two piezoelectric ceramic stacks at the two ends of the mass block in the transducer are made to vibrate at different frequencies, the transducer works at a double-frequency mode, the cavitation effect is enhanced through the low frequency generated by difference frequency in the double frequencies, tumor angiogenesis is induced to form thrombus, a tumor nutrition feeding channel is blocked, and the effect of treating a tumor is achieved. The complex frequency ultrasonic tumor treatment head is simple in structure, low in manufacturing cost, and easy and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of treating tumors by the microbubble cavitation effect of ultrasonic contrast agents, in particular to a multi-frequency ultrasonic tumor treatment head. Background technique [0002] Tumor is a major disease that seriously threatens human life and has become the main cause of human death. At present, the number of cancer patients in China is about 2.5 million every year, and the number of cancer deaths is about 1.8 million, and it is getting younger and increasing year by year. The current methods of tumor treatment include: surgery, radiation therapy, chemotherapy, biological therapy, and other treatments. It is difficult for these treatments to treat tumors without damaging tissues that should not be damaged. Ultrasound therapy for tumors, sometimes called ultrasound bloodless surgery, is a non-invasive treatment technique. The principle is to use the cavitation effect of ultrasound to treat tumors. Th...

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Problems solved by technology

[0006] According to the above problems such as low treatment efficiency and complex structure of the focused ultrasound non-invasive sonodynamic tumor therapy system

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