Ultrasonic emission device for interventional therapy
A technology of ultrasonic emission and interventional therapy, applied in the fields of therapy, ultrasonic therapy, medical science, etc., can solve the problems of inability to treat specific areas and diseases that cannot be treated
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[0056] The preparation process of the device of the present embodiment is:
[0057] 1. Preparation and processing of lithium niobate wafer
[0058] The lithium niobate single crystal used in the present invention is prepared by a pulling process, annealing and polarization treatment. The diameter of the bar is 30mm, sliced along the direction of Y34°±0.5°, and then polished on both sides by a polishing machine, the surface roughness of the positive side is required to be ≤1μm, the negative side is ≤2μm, and the thickness of the polished wafer is 0.36±0.05mm , the resonant frequency is 9MHz±2MHz, and the electromechanical coupling coefficient is 0.4±0.1MHz.
[0059] 2. Lithium niobate wafer cleaning
[0060] After the wafer is polished, it needs to be cleaned to remove various pollutants (organic matter, particles, metal atomic ions and micro-roughness) to ensure the quality of the subsequent coating film. The cleaning method is as follows: (1) Put the LN substrate into the...
Embodiment 1
[0068] Figure 10 It is a side view of the ultrasonic transmitting device for interventional treatment according to the first embodiment of the present invention; Figure 11 yes Figure 10 The front view of the indicated interventional therapy using the ultrasound emitting device for treatment; Figure 12 yes Figure 10 The working principle diagram of the ultrasonic emission device for interventional therapy as shown; refer to Figure 10-12 , the device includes an ultrasonic transducer 1 , a temperature sensor 5 , a cooling port 8 and a backing base 10 . In this embodiment, the backing base 10 is cylindrical as a whole, and the head end is treated with a ball head to avoid damage to the human body lumen or tissue. A plane is processed along the centerline of the cylinder for installing the ultrasonic transducer. Adhesive bonding, on the back of the ultrasonic transducer, two grooves are opened along the backing base for cooling the ultrasonic transducer chip and backing ...
Embodiment 2
[0070] Figure 13 It is a side view of the ultrasonic transmitting device for interventional therapy according to the second embodiment of the present invention; Figure 14 yes Figure 13 The front view of the ultrasonic transmitting device for interventional therapy shown; refer to Figures 13 to 14 , the device includes: two oppositely installed ultrasonic transducers 1 , a temperature sensor 5 , a cooling port 8 and a backing base 10 . In this embodiment, the backing base is cylindrical as a whole, and the head end is treated as a ball head, and two planes are processed along the relative positions of the cylinder, which are used to install the ultrasonic transducer. Adhesive bonding. The two ultrasonic transducers installed at opposite positions serve as backings for each other, which can further enhance the conversion rate, and emit ultrasonic energy in two directions at the same time, treating two target areas at a time, improving the treatment efficiency.
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