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A scanning method and device

A scanning method and consistent technology, applied in the field of medical instruments, can solve problems such as position error of detection points and limited scanning freedom, and achieve the effect of improving position accuracy and attitude accuracy, and accurate and flexible detection.

Inactive Publication Date: 2020-08-28
刁心玺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a scanning method and device for detecting the internal state of a specific part of the human body, with the purpose of overcoming at least one of the shortcomings of the existing medical sensing technology, such as limited scanning freedom and difficult control of detection point position errors. A sort of

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Embodiment 1

[0047]Embodiment 1, an example of a scanning method

[0048] see figure 1 As shown, the scanning method embodiment provided by the present invention includes the following steps:

[0049] Step S110, determining the scanning route of the detector from the first position point to the second position point;

[0050] Step S120, determining a group of detection points on the scanning route, and setting the normal direction of the radiation interface and / or sensing interface of the detector at one or more detection points in the group of detection points;

[0051] Step S130, moving the detector so that it goes through one or more detection points in the group of detection points, and adjusting the normal direction of the radiation interface and / or the sensing interface of the detector so that it is on the detector When going through the detection point, it is consistent with the normal direction set on the detection point;

[0052] in,

[0053] The specific implementation method...

Embodiment 2

[0092] Embodiment 2, an example of a scanning device

[0093] see figure 2 As shown, the embodiment of the scanning device provided by the present invention includes:

[0094] Scanning control unit 210, detector movement servo unit 221, detector rotation servo unit 222, detector installation interface unit 220; wherein,

[0095] The scanning control unit 210 includes a scanning route and a detection point setting unit 211, a detector movement control unit 212, and a detector rotation control unit 213; wherein,

[0096] The scanning route and detection point setting unit 211 is used to determine the scanning route of the detector from the first position point to the second position point; determine a group of detection points on the scanning route, and set the radiation of the detector the normal direction of the interface and / or sensing interface at one or more detection points in the set of detection points;

[0097] The detector movement control unit 212 is used to contr...

Embodiment 3

[0128] Embodiment 3, an example of a scanning method

[0129] In this embodiment, the detector is used to perform partial spherical scanning on the object to be detected, and a quarter spherical surface is used as the scanning surface. In order to form a spherical scanning trajectory, the distance from the scanning point trace to the center of the sphere changes, which requires the scanning device to be able to adjust the length of the scanning radius to achieve variable radius scanning.

[0130] see figure 1 As shown, in order to achieve a quarter spherical scanning surface,

[0131] The step of determining the scanning route of the detector from the first position point to the second position point described in step S110, the implementation method in this embodiment is:

[0132] Decompose the "quarter sphere" into multiple sections along the vertical direction, the first section passes through the center "o" in the vertical direction to bisect the sphere with radius R, the...

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Abstract

The invention provides a scanning method and device, in order to overcome at least shortcoming of an existing medical sensor technology that the freedom degree of scanning is limited and the position errors of detection points are difficult to control. The scanning method comprises the following steps: determining the scanning path of a detector from a first position point to a second position point; determining a group of detection points on the scanning path, and setting the normal directions / direction of a radiation interface and / or a sensing interface of the detector on one or more detection points of the group of detection points; and moving the detector so that the detector passes through one or more detection points in the group of detection points, and regulating the normal directions / direction of the radiation interface and / or the sensing interface of the detector until the detector, when passing through the detection point, is consistent with the normal direction which is set on the detection point. The method and device provided by the invention can achieve scanning with multiple degrees of freedom, so that the position accuracy and the attitude accuracy of the detector are improved.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a scanning method and device. Background technique [0002] Scanning detection is a commonly used technical method in modern medical imaging. For example, spiral CT imaging technology is obtained by continuous rotation of the X-ray tube and detector along the scanning axis in a spiral trajectory and continuous image acquisition when the examination table moves at a certain speed at a constant speed. scan data to obtain volume data. A scanning method similar to spiral CT is also used in MRI imaging. In the above imaging scans, the scan radius limited by the slip ring is fixed. For different parts of the organ, or different organs, human bodies of different sizes, or small animals, the same scan radius is still used, or the corresponding slip ring must be replaced. Coils, etc. to adapt to different sizes, the complexity is high. [0003] In the field of patent application, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/00
Inventor 刁心玺钱浙滨
Owner 刁心玺