A phased array transducer precise focusing method and system thereof

A focusing method and transducer technology, used in surgical navigation systems, ultrasonic therapy, treatment and other directions, can solve the problems of long time, insufficient accuracy, troublesome ultrasonic focusing process, etc., achieve fast and accurate focusing, ensure focusing accuracy, save money Effects of treatment and treatment waiting time

Active Publication Date: 2021-10-01
韶关东阳光自动化设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the disadvantages of troublesome, long time and insufficient precision in the ultrasonic focusing process in the above-mentioned prior art, the present invention provides a phased array transducer precise focusing method and system thereof which is simple and easy to operate, fast focusing and high precision

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  • A phased array transducer precise focusing method and system thereof
  • A phased array transducer precise focusing method and system thereof
  • A phased array transducer precise focusing method and system thereof

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Embodiment

[0059] Such as Figure 1 to Figure 16 It is an embodiment of a phased array transducer precise focusing method, comprising the following steps:

[0060] S1: Obtain the medical image data of the skull 8 and the acoustic parameter model;

[0061] S2: Establish a three-dimensional slowness model of the skull;

[0062] S3: Determine the slowness curve from the center point of the array element to the focal point coordinates, and integrate it to obtain a reference value;

[0063] S4: Calculate the emission phase of each array element according to the reference value;

[0064] S5: Place the skull 8 in the water tank 9 for ultrasonic focusing.

[0065] Step S1 in this embodiment specifically includes the following steps:

[0066] S11: fix the positions of the skull 8 and the phased array transmitting transducer 2;

[0067] S12: Perform a medical imaging scan on the skull 8 to obtain some medical image data of the skull 8;

[0068] S13: reconstructing the three-dimensional digit...

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Abstract

The present invention relates to the field of ultrasonic focusing technology, and more specifically relates to a phased array transducer precise focusing method and system thereof, comprising the following steps: S1: Acquiring medical image data and acoustic parameter models of the skull; S2: Establishing a three-dimensional skull Slowness model; S3: Determine the slowness curve from the center point of the array element to the focal point coordinates, and integrate it to obtain the reference value; S4: Calculate the emission phase of each array element according to the reference value; S5: Place the skull in the water tank, Perform ultrasound focusing. In the present invention, the reference value is obtained by integrating the slowness curve from the center point of the transducer array element to the focus point coordinates, and the emission phase of each array element can be calculated from the reference value, so that the coordinates of the center point of the array element and the focus point can be directly obtained. The formula calculation of the coordinates does not bring in the influence of other factors, and does not require the complex and time-consuming calculation process of the focus emission phase, so it can quickly and accurately focus on the predetermined focus point position, saving treatment and treatment waiting time.

Description

technical field [0001] The invention relates to the technical field of ultrasonic focusing, and more particularly relates to a precise focusing method and system for a phased array transducer. Background technique [0002] Existing HIFU transducers also have limitations in the use of this area. Generally, only specific HIFU transducers and their more exclusive focusing methods can be developed for specific application scenarios. Once it is changed to other application scenarios, the focusing method of the transducer generally cannot work, and the adaptability is not strong. Moreover, in a complex focusing environment, the traditional focusing method takes a lot of time to calculate the focused emission phase, and cannot achieve real-time treatment, which greatly limits the treatment efficiency and is a burden for actual clinical applications. [0003] Chinese patent CN104545919B discloses a method of ultrasonic transcranial focusing, which obtains a patient's skull image an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B34/10A61B34/20A61N7/00
CPCA61N7/00A61B34/10A61B34/20A61B2034/105A61B2034/2072
Inventor 王祥达朱波何建方滕世国李建霖郭甲李萍
Owner 韶关东阳光自动化设备有限公司
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