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

Inactive Publication Date: 2003-05-14
昆山吉立富软件信息有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the ultrasonic transducers of high-intensity focused ultrasound tumor therapy machines generally have the defects of small ultrasonic emission area and small ultrasonic 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. Excessively large, likely to cause burns and pain to the skin interface and human tissue along the transmission path

Method used

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  • Transducer for supersonic tumor curing instrument
  • Transducer for supersonic tumor curing instrument
  • Transducer for supersonic tumor curing instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Such as figure 1 , figure 2 As shown, a transducer for an ultrasound tumor therapy machine includes a spherical cap with an inner diameter of 30 cm, a piezoelectric crystal 2, a high-frequency signal source 3, a crystal housing 4, and a stent. The spherical cap 1 has 24 symmetrical spheres. For the mounting holes, the piezoelectric crystals 2 with the same number as the mounting holes are respectively fixed in the mounting holes of the spherical crown 1 through the housing 4 thereof. The spherical cap 1 is supported on a stent composed of four pillars. The surface of the piezoelectric crystal 2 is arc-shaped, and its radius of curvature is the same as that of the spherical cap 1. The ultrasonic emission angle β of the transducer is 100°. The high-frequency signal sources 3 with the same number of piezoelectric crystals 2 are respectively connected to each piezoelectric crystal 2 through wires. Due to the large spherical crown surface area of ​​the transducer of the ultraso...

Embodiment 2

[0014] A transducer for ultrasound tumor therapy machine. The spherical crown 1 with an inner diameter of 50cm is selected. 45 mounting holes are symmetrically opened on the spherical surface of the spherical crown 1. The piezoelectric crystals 2 with the same number of mounting holes are respectively fixed through the housing 4 In the mounting hole of the spherical cap 1, the ultrasonic emission angle of the transducer is 115°. The rest is the same as in Example 1.

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N7/00
Inventor 任爱卿
Owner 昆山吉立富软件信息有限公司
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