Manufacturing method of opto-acoustic lens, focusing ultrasonic device and focusing ultrasonic measurement system

A manufacturing method and focused ultrasound technology, which are applied in the measurement of ultrasonic/sonic/infrasonic waves, sound-generating instruments, and ultrasonic therapy, etc., can solve the problems of complexity, large focused focal spot size, and are not suitable for hand-held operation, and are inexpensive and simple to prepare. Simple production method and small device size

Inactive Publication Date: 2018-10-26
SHANGHAI JIAO TONG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

(i) The piezoelectric ultrasonic transducer has the disadvantage of large focal spot size, which is not suitable for high-precision treatment; (ii) the current laser-generated focused ultrasonic transmitter needs to be well aligned on the optical table, which is not applicable For handheld operation, intracavity and intraoperative application; (iii) photoacoustic lens suitable for carbon nanotube-polydimethylsiloxane, the preparation of carbon nanotubes is expensive and complicated

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  • Manufacturing method of opto-acoustic lens, focusing ultrasonic device and focusing ultrasonic measurement system
  • Manufacturing method of opto-acoustic lens, focusing ultrasonic device and focusing ultrasonic measurement system
  • Manufacturing method of opto-acoustic lens, focusing ultrasonic device and focusing ultrasonic measurement system

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Embodiment Construction

[0043] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0044] refer to figure 1 Shown, the manufacturing method of the photoacoustic lens of the present invention, it comprises the following steps;

[0045] S1. Place the plano-concave lens on the candle flame, so that a layer of uniform candle soot nanoparticles is produced on the concave surface of the plano-concave lens;

[0046] S2. Immerse the plano-concave lens in a container containing polydimethylsiloxane. In order to improve the photoacoustic conversion efficiency, use a dip coating method to form a candle soot nanoparticle-polydimethylsiloxane composite;

[0047] S3, leading out the excess polydimethylsiloxane on the surface of the plano-co...

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Abstract

The invention discloses a manufacturing method of opto-acoustic lens, a focusing ultrasonic device and a focusing ultrasonic measurement system. The manufacturing method comprises steps of S1: placingplane-concave lens on candle flame so as to generate a layer of uniform candle ash nano particles on the surface of the concave face of the plane-concave lens; S2: immersing the plane-concave lens into a container containing polydimethylsiloxane, and by use of a dip-coating method, forming candle ash nano particle- polydimethylsiloxane compound; S3: leading out redundant polydimethylsiloxane on the surface of the plane-concave lens; and S4: carrying out thermo-curing on the plane-concave lens. According to the invention, the focusing spots are small; the device is small in size; the method issuitable for high-precision treatment; and the device and the system are simple and cheap to prepare, and suitable for handheld operation.

Description

technical field [0001] The invention relates to the technical field of focused ultrasound equipment, in particular to a method for manufacturing a photoacoustic lens, a focused ultrasound device, and a focused ultrasound measurement system. Background technique [0002] High-intensity focused ultrasound (HIFU) is a medical technique that can be used to treat many conditions. High-intensity focused ultrasound can produce useful thermal or mechanical effects on a target by focusing ultrasound into a small focal volume. High-intensity focused ultrasound has been used in many applications, such as the treatment of liver and kidney tumors, drug targeting and delivery, and bone ablation. In addition, cavitation-based high-intensity focused ultrasound can improve therapeutic outcomes and has demonstrated promising applications, such as slowing down tumor growth. During treatment, image-guided high-intensity focused ultrasound therapy is typically used for targeting and monitoring...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H9/00A61N7/02G10K11/30
CPCA61N7/02G01H9/004G10K11/30
Inventor 陈松良李瑶郭震东李光耀
Owner SHANGHAI JIAO TONG UNIV
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