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High-strength focus supersonic therapeutic system of hundred array-element composite material and controlling array by spherical-phase

A technology of composite materials and focused ultrasound, which is applied in ultrasound therapy and treatment, can solve the problems of non-axisymmetric multi-focus and inability to form three-dimensional space multi-focus scanning, etc., to facilitate stereotaxic positioning and focused ultrasound operation, reduce Healing time, efficiency improvement effect

Inactive Publication Date: 2009-05-06
XI AN JIAOTONG UNIV
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Problems solved by technology

[0005] Authorized U.S. Patent 4,865,042, the inventor Umemura, the invention name is "Ultrasonicirradiation system", as early as 1989, a phased array HIFU transducer was disclosed, which used a spherical crown phased array transducer, that is Spherical annular phased array and spherical sector spiral phased array; the use of the annular array phase angle modulation method in the patent can produce multi-focals with annular distribution on the focal plane, but cannot produce non-axisymmetric multi-focals, so it cannot form a three-dimensional space multi-focus scan

Method used

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  • High-strength focus supersonic therapeutic system of hundred array-element composite material and controlling array by spherical-phase
  • High-strength focus supersonic therapeutic system of hundred array-element composite material and controlling array by spherical-phase
  • High-strength focus supersonic therapeutic system of hundred array-element composite material and controlling array by spherical-phase

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Embodiment Construction

[0023] see figure 1 , which shows a schematic diagram of a spherical phased array high-intensity focused ultrasound therapy system with hundreds of array elements. The overall system consists of hundreds of array elements composite spherical phased array transducer 2, hundreds of channels phased array HIFU drive control system 17, B-ultrasound probe 3, B-ultrasound instrument 5, image acquisition device 7, and 6-axis motion system 11 and a 6-axis motion control system 13, a main control computer 15, a degassing and purifying water system 19, a camera 9, a water bag 10 and a treatment bed 1.

[0024]The composite spherical phased array transducer 2 of the present invention is installed under the treatment couch 1, and in the center hole of the probe of the composite spherical phased array transducer 2 of hundreds of array elements, coaxially installed B-ultrasound probe 3, B-ultrasound probe 3 forms a combined probe with it, B-ultrasound probe 3 can rotate around the central a...

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Abstract

The hundred array-elements composite material spherical phased-array high-strength focusing ultrasonic therapeutic system includes the following several portions: therapeutic bed, hundred array-elements composite material spherical phased-array transducer, ultrasonic scanner probe, handred channels phased-array HIFU drive control system, shaft movement system and control system for controlling form of transducer, ultrasonic scanning probe and ultrasonic scanner and image acquisition device, water bag, deaerating water-purifying system and main control computer for respectively controlling action of the above-mentioned system. Said invention also provides the working principle of said system and its operation method.

Description

technical field [0001] The invention belongs to the field of biomedical instruments and equipment, and relates to a high-intensity focused ultrasound treatment system for non-invasive surgical operations, in particular to a high-intensity focused ultrasound treatment system with hundreds of array elements spherical phased array. Background technique [0002] High Intensity Focused Ultrasound (HIFU) is a treatment that focuses ultrasonic energy on the deep target tissue of the human body to achieve precise thermal damage to the selected target tissue without harming the adjacent normal tissue. Ultrasound Surgery, FUS) The peak sound intensity of the focus point of HIFU is hundreds of W / cm~thousands of W / cm 2 , the action time is only a few seconds (usually 1-3S), and the tissue temperature exceeds 56°C-60°C. At this time, the cell protein is suddenly coagulated, and cavitation forms bubbles to force the destruction of the cell and tissue structure. Called tissue ablation or ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N7/02
Inventor 万明习陆明珠王晓东徐丰骆志坚
Owner XI AN JIAOTONG UNIV
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