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Ultrasonic transducer and ultrasonic therapeutic system comprising same

An ultrasonic transducer, ultrasonic technology, applied in the direction of ultrasonic therapy, treatment, etc., can solve the problems of continuous use for a period of time, continue to use after it cools down, affect the treatment effect, prolong the treatment time, etc., to reduce pain and treat Good effect and shorter treatment time

Inactive Publication Date: 2007-07-04
CHONGQING HAIFU MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] High-intensity ultrasonic therapy technology is a practical clinical ultrasonic therapy technology developed in recent years. The equipment used in this technology is mainly high-intensity ultrasonic transducers. Since the output of ultrasonic transducers (usually piezoelectric ceramic transducers) The energy is large, the heat generated is high, and the internal temperature is high, so that the stability of the output is poor, and even the ultrasonic emission capability is lost because the temperature exceeds the Curie temperature of its material.
[0003] At present, there are various forms of high-intensity ultrasonic transducers at home and abroad, such as lens-type focusing transducers, concave spherical self-focusing piezoelectric ceramic transducers, flat piezoelectric ceramic spherical transducers and flat piezoelectric ceramic planar transducers. Arrange phase-controlled focusing transducers, etc. Some of these ultrasonic transducers are cooled by the acoustic emission surface, and some pass through the ultrasonic transducer through metal pipes to dissipate heat through water or gas. These cooling methods are inefficient , unable to take away a large amount of heat generated by the ultrasonic transducer, when working in a high-heat environment greater than the maximum nominal power, the piezoelectric ceramic sheet heats up rapidly, resulting in changes in the piezoelectric ceramic sheet parameters, accelerated heating, and sound power The output drops rapidly, even causing the entire ultrasonic transducer to be damaged
Therefore, in order to ensure that the ultrasonic transducer can work stably, in general, the ultrasonic transducer usually has to be used under the condition of reducing the rated power, or it is used continuously for a period of time, and then continued to use after it cools down, which affects the treatment. Effect, prolonging the treatment time, but also shortening the service life of the ultrasonic transducer

Method used

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  • Ultrasonic transducer and ultrasonic therapeutic system comprising same
  • Ultrasonic transducer and ultrasonic therapeutic system comprising same
  • Ultrasonic transducer and ultrasonic therapeutic system comprising same

Examples

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Embodiment 1

[0022] As shown in Figures 1 and 2, the ultrasonic transducer of the present invention includes a housing 14. The upper part of the housing 14 is an ultrasonic transmitting unit, and there is a cooling unit for cooling the ultrasonic transmitting unit in the housing 14. The cooling unit is located below the ultrasonic transmitting unit. In this embodiment, the ultrasonic emitting unit includes a piezoelectric ceramic sheet 1 and a focusing unit 10 thereon. The focusing unit 10 adopts a lens, and uses a lens refraction method to focus ultrasonic waves.

[0023] As shown in FIG. 2 , there is a hole 15 through which imaging monitoring equipment can pass through the middle part of the bottom surface of the shell 14 and the middle part of the ultrasonic emitting unit. In this embodiment, the imaging monitoring equipment adopts a B-ultrasound probe.

[0024] The cooling unit is fixed to the side wall of the casing 14 by means of screws or adhesives. The cooling unit includes a cold...

Embodiment 2

[0031] As shown in FIG. 3 , compared with the first embodiment, the ultrasonic transducer of this embodiment has a control unit 7 added.

[0032] As shown in Figures 3 and 4, the control unit 7 includes a temperature sensor 9 located between the cold storage sheet 3 and the ultrasonic emission unit, a preamplifier 71 connected to the temperature sensor 9, a first comparator 72 connected to the cooling sheet 4 and The second comparator 73 connected to the ultrasonic transmitting unit, the first comparator 72 and the second comparator 73 are respectively connected to the pre-amplifier 71 .

[0033] Wherein, the temperature sensor 9 is fixed in the gap between the cold storage sheet 3 and the ultrasonic emitting unit by bonding. There is also a wire conduit 13 connected to the atmosphere through the housing 14 in the cooling unit, and the signal lines of the piezoelectric ceramic sheet 1, the fan 2, the cooling sheet 4, and the temperature sensor 9 are all led to the external con...

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Abstract

The invention belongs to the field of ultrasonic therapy technology, specifically an ultrasonic transducer and the ultrasonic therapy system containing the ultrasonic transducer. The ultrasonic transducer includes shell, the casing is installed ultrasound transmit unit and the cooling unit of ultrasound transmit unit in itself. Said cooling unit includes cold-storage units, refrigeration units and dissipating heat units below the ultrasound transmit unit, the refrigeration units are installed between the cold-storage units and dissipating heat units, the refrigeration surface of refrigeration units is applying with the cold-storage units, and other surface of refrigeration units, that is dissipating heat surface, is applying with the dissipating heat units. The invention also provides an ultrasonic therapy containing said ultrasound transmit unit. The ultrasound transmit unit in the invention can continuity and steady work in the condition of high power output and long time, and shortens the treatment time.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic therapy, and in particular relates to an ultrasonic transducer and an ultrasonic therapeutic system including the ultrasonic transducer. Background technique [0002] High-intensity ultrasonic therapy technology is a practical clinical ultrasonic therapy technology developed in recent years. The equipment used in this technology is mainly high-intensity ultrasonic transducers. Since the output of ultrasonic transducers (usually piezoelectric ceramic transducers) The energy is large, the heat generated is large, and the internal temperature is high, which makes the output stability poor, and even loses the ability of ultrasonic emission because the temperature exceeds the Curie temperature of its material. [0003] At present, there are various forms of high-intensity ultrasonic transducers at home and abroad, such as lens-type focusing transducers, concave spherical self-focusing piezoelectric ...

Claims

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Application Information

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IPC IPC(8): A61N7/00
Inventor 王芷龙胡政林涛李三勇王智彪
Owner CHONGQING HAIFU MEDICAL TECH CO LTD
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