A flexible fiber-optic photoacoustic focused ultrasound transducer
An ultrasonic transducer and acoustic focusing technology, applied in ultrasonic therapy, instruments, optics, etc., can solve the problem of inability to apply ultrasonic medical diagnosis and treatment, inability to accurately control the structure size of concave vibrator, the thickness of light-absorbing vibrating material, and poor structural consistency and other issues, to achieve good light absorption effect, good encapsulation effect, and high consistency
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[0037] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0038] Such as figure 1 and figure 2 As shown, a flexible fiber-optic photoacoustic focused ultrasound transducer in this embodiment mainly includes a double-clad optical fiber 1 , a UV glue protective layer 2 , a UV glue micro-concave lens 3 , and a photoacoustic excitation coating 4 . In this embodiment, the graphene-polydimethylsiloxane composite material is used as an example to prepare the photoacoustic excitation coating 4 .
[0039] image 3 A flow chart for the preparation of a flexible fiber-optic photoacoustic focused ultrasound transducer is shown. based on image 3 The fabrication process shown here illustrates the fabrication process of the flexible fiber-optic photoacoustic focused ultrasound transducer.
[0040] First, use fiber strippers to strip the coating at one end of the double-clad fiber, and use a clean cloth dippe...
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