High-intensity focused ultrasonic transducer

A technology of focused ultrasound and transducers, which is applied in the field of medical devices, can solve the problems of cumbersome contact reliability of leads, large cumulative assembly errors, and many assembly links, so as to reduce mechanical sensitivity, reduce dimensional errors, and achieve high installation and positioning accuracy Effect

Pending Publication Date: 2020-05-15
NANJING GUANGCI MEDICAL TECH
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Problems solved by technology

[0003] The purpose of the present invention is mainly to solve the problems of existing transducers with many assembly steps, large cumulative assembly errors, cumbersome lead wires, and risky contact reliability, and to provide an integrated high-intensity focused ultrasonic transducer. Ultrasonic transducers only need a bracket to complete the positioning and support of the piezoelectric sheet, whi

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  • High-intensity focused ultrasonic transducer
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Example Embodiment

[0021] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0022] Such as figure 1 with 2 As shown, a high-intensity focused ultrasound transducer includes a transducer holder 1 and a focusing piezoelectric sheet 2. The transducer support 1 is an integrated structure, and the focusing piezoelectric sheet 2 is mounted on In the transducer holder 1, at the same time, a positioning column 3 is provided inside the transducer holder 1. The positioning column 3 is provided with a positioning surface 7 and an inner ring glue groove 4, and the positioning surface 7 is used to support the focus piezoelectric In the inner ring of the sheet 2, a glue injection port for the inner ring is reserved above the inner ring rubber groove 4.

[0023] In this embodiment, the positioning column 3 includes an outer positioning protrusion 5 and an inner positioning protrusion 6, an inner ring glue groove 4 is formed between the outer positioni...

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Abstract

The present invention discloses a high-intensity focused ultrasonic transducer. The high-intensity focused ultrasonic transducer comprises a transducer support and focused piezoelectric sheets, the transducer support is of an integrally formed structure, the focused piezoelectric sheets are arranged in the transducer support in a gluing mode, positioning columns are arranged inside the transducersupport and comprise outer positioning protrusions and inner positioning protrusions, inner ring glue grooves are formed between the outer positioning protrusions and the inner positioning protrusions, positioning surfaces are formed at top ends of the outer positioning protrusions, and gaps are reserved between outer surfaces of the inner positioning protrusions and inner side surfaces of inner rings of the focused piezoelectric sheets to form inner ring glue injection openings. The support is only needed to complete positioning and supporting of the piezoelectric sheets, and the high-intensity focused ultrasonic transducer is simple to operate and also easy to ensure precision; then negative electrode leads are led out from front surfaces through wiring grooves, so that reliability of the leads is improved; and a gluing sealing method is sued for sealing, soft elasticity of glue is used, stability of ultrasound output is guaranteed, internal stress of piezoelectric ceramics is also reduced, and the piezoelectric ceramics are prevented from brittle failure.

Description

technical field [0001] The invention relates to a high-intensity focused ultrasonic transducer, which belongs to the field of medical equipment. Background technique [0002] With the continuous development of ultrasound technology and the continuous improvement of medical level, high-intensity focused ultrasound diagnosis and treatment system is developing rapidly in the field of precise non-invasive treatment. The working method of the power ultrasonic device is to emit focused power ultrasonic waves from the outside of the human body to the human body, forming a large energy concentration in a specific area of ​​the human body to change the biological characteristics of the tissue in the area, and to achieve the purpose of treating diseases. The existing high-intensity focused ultrasound is generally a spherical self-focusing single-channel ultrasonic transducer, and the piezoelectric ceramic is a single spherical crown or a multi-piece spliced ​​spherical crown to achiev...

Claims

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Application Information

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IPC IPC(8): A61N7/02
CPCA61N7/02A61N2007/0004
Inventor 孔祥清孔有年蔡菁郭瑞彪车飞飞张恩光靳遥
Owner NANJING GUANGCI MEDICAL TECH
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