Portable CT imaging system

Abstract

The invention relates to a portable CT imaging system which comprises a rotating platform used for bearing a scanned object, and a first supporting frame used for bearing a radiation source and a second supporting frame used for bearing a detector are arranged on the two sides of the rotating platform respectively. A geometric die body is fixedly mounted in the rotating platform, and the projection of the radiation source irradiating the scanned object and the geometric die body is located in the receiving range of the detector; one side of the rotating platform is detachably connected with a first rail, and the other side of the rotating platform is detachably connected with a second rail; the first supporting frame is detachably installed on the first track and can slide along the first track, and the second supporting frame is detachably installed on the second track and can slide along the second track. According to the invention, by rotating the geometric die body arranged in the platform, the geometric parameters of each time of scanning are automatically calculated during scanning, so that errors caused by system offset are avoided; the distance between the components is adjusted through the track, and the components are detachably connected, so that the system is more flexible and convenient to deploy and disassemble.

Description

Technical Field

[0001] The present invention relates to the technical field of CT imaging, and in particular to a portable CT imaging system. Background Art

[0002] CT (Computed Tomography) uses X-ray beams to scan the object layer by layer, and uses computer processing to produce detailed images of the object's internal structure. Traditional CT imaging systems have the following drawbacks:

[0003] 1. The equipment is bulky: fixed racks are difficult to disassemble, and transportation and deployment costs are high;

[0004] 2. Complex installation: requires on-site debugging by professional engineers and cannot be put into use quickly;

[0005] 3. An additional scan is required before each CT scan to calculate the system geometric parameters. Summary of the Invention

[0006] The present invention provides a portable CT imaging system to solve the above technical problems.

[0007] To solve the above technical problems, the present invention provides a portable CT imaging system, comprising a rotating platform for carrying a scanned object, wherein two sides of the rotating platform are respectively provided with a first support frame for carrying a radiation source and a second support frame for carrying a detector;

[0008] A geometric phantom is fixedly installed in the rotating platform, the radiation source irradiates the scanned object, and the projection of the geometric phantom is located within the receiving range of the detector;

[0009] One side of the rotating platform is detachably connected to a first track, and the other side is detachably connected to a second track; the first support frame is detachably mounted on the first track and can slide along the first track, and the second support frame is detachably mounted on the second track and can slide along the second track.

[0010] Preferably, the first track adopts a foldable or retractable structure.

[0011] Preferably, the second track adopts a foldable or retractable structure.

[0012] Preferably, the rotating platform is equipped with a built-in driving motor for driving the rotating platform to rotate.

[0013] Preferably, the geometric phantom includes a plurality of regularly arranged metal markers.

[0014] Preferably, the metal marker is a tungsten steel bead.

[0015] Preferably, the first support frame and the second support frame are both made of lightweight materials.

[0016] Preferably, the lightweight material includes aluminum alloy, titanium alloy, magnesium alloy, engineering plastic and carbon fiber composite material.

[0017] Preferably, both ends of the first track are connected to the first support frame and the rotating platform via a snap or threaded structure; both ends of the second track are connected to the second support frame and the rotating platform via a snap or threaded structure.

[0018] Preferably, the ray source and the detector are respectively powered by a mobile power supply.

[0019] Compared with the prior art, the portable CT imaging system provided by the present invention has the following advantages:

[0020] 1. The present invention fixes the geometric phantom on a rotating platform, so that a single CT scan can complete the scanning of the geometric phantom, thereby calculating the corresponding geometric parameters and simultaneously completing the scanning of the scanned object. That is, each CT scan can instantly calculate the geometric parameters of the current scan, avoiding errors caused by system offset and other reasons;

[0021] 2. In the present invention, the positions of the radiation source and the detector can be flexibly adjusted by moving the first support frame and the second support frame on the first track and the second track; the various components are connected in a detachable manner, and the modular structure is used to make the system deployment and disassembly more flexible and convenient. After the system is disassembled, the volume can be reduced to adapt to a standard suitcase, thereby reducing storage and transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. 4 is a schematic structural diagram of a portable CT imaging system according to a specific embodiment of the present invention.

[0023] In the figure: 10 - scanning object, 11 - rotating platform, 20 - radiation source, 21 - first support frame, 22 - first track, 30 - detector, 31 - second support frame, 32 - second track, 40 - geometric phantom. DETAILED DESCRIPTION

[0024] In order to describe the technical solution of the above invention in more detail, specific embodiments are listed below to demonstrate the technical effects; it should be emphasized that these embodiments are used to illustrate the present invention and are not used to limit the scope of the present invention.

[0025] The portable CT imaging system provided by the present invention is as follows: Figure 1As shown, it includes a rotating platform 11 for carrying a scanned object 10, and a first support frame 21 for carrying a radiation source 20 and a second support frame 31 for carrying a detector 30 are respectively provided on both sides of the rotating platform 11. The radiation source 20 and the detector 30 can be powered by a mobile power supply respectively, and the CT scanning function can be completed in combination with a portable computer with integrated image acquisition, reconstruction and display functions.

[0026] A geometric phantom 40 is fixedly mounted within the rotating platform 11. The radiation source 20 illuminates the scanned object 10, and the projection of the geometric phantom 40 is located within the receiving range of the detector 30. The present invention fixes the geometric phantom 40 within the rotating platform 11, so that a single CT scan can complete the scanning of the geometric phantom 40, thereby calculating the corresponding geometric parameters and completing the scanning of the scanned object 10 at the same time. That is, each CT scan can instantly calculate the geometric parameters of the current scan, avoiding errors caused by system offsets and other reasons.

[0027] The rotating platform 11 is detachably connected to a first track 22 on one side and to a second track 32 on the other side. The first support frame 21 is detachably mounted on the first track 22 and is capable of sliding along the first track 22. The second support frame 31 is detachably mounted on the second track 32 and is capable of sliding along the second track 32. In the present invention, the positions of the radiation source 20 and the detector 30 can be flexibly adjusted by moving the first support frame 21 and the second support frame 31 on the first track 22 and the second track 32. The detachable connection of the various components utilizes a modular structure, making system deployment and disassembly more flexible and convenient. After the system is disassembled, its volume can be reduced to fit in a standard suitcase, reducing storage and transportation costs.

[0028] In some embodiments, please refer to Figure 1 The first track 22 adopts a foldable or retractable structure, thereby folding or shrinking a longer track into a shorter track, further reducing the volume and optimizing space utilization. In some embodiments, the second track 32 can also adopt a foldable or retractable structure to further reduce the volume.

[0029] In some embodiments, the rotating platform 11 is equipped with a drive motor (not shown) for driving the rotating platform 11 to rotate around the longitudinal center axis to perform multi-angle scanning of the scanning object 10 .

[0030] In some embodiments, the geometric phantom 40 includes a plurality of regularly arranged metal markers, for example, three tungsten steel balls are used, and the three tungsten steel balls are staggered with respect to the longitudinal center axis, and the three tungsten steel balls are arranged at equal intervals along the direction of the longitudinal center axis, which can accurately characterize the geometric parameters under the current scan without losing too much height field of view.

[0031] In some embodiments, the first support frame 21 and the second support frame 31 are both made of lightweight materials. Specifically, the lightweight materials may include aluminum alloy, titanium alloy, magnesium alloy, engineering plastics, and carbon fiber composite materials, etc., which can not only play a supporting and fixing role, but also reduce the weight of the entire system, further reducing storage and transportation costs.

[0032] In some embodiments, the two ends of the first track 22 are respectively connected to the first support frame 21 and the rotating platform 11 through a snap or threaded structure; the two ends of the second track 32 are respectively connected to the second support frame 31 and the rotating platform 11 through a snap or threaded structure, thereby achieving quick connection and disassembly.

[0033] In summary, the portable CT imaging system provided by the present invention includes a rotating platform 11 for carrying a scanned object 10, and a first support frame 21 for carrying a radiation source 20 and a second support frame 31 for carrying a detector 30 are respectively provided on both sides of the rotating platform 11; a geometric phantom 40 is fixedly installed in the rotating platform 11, and the radiation source 20 irradiates the scanned object 10, and the projection of the geometric phantom 40 is located within the receiving range of the detector 30; the present invention fixes the geometric phantom 40 in the rotating platform 11, so that a single CT scan can complete the scanning of the geometric phantom 40, thereby calculating the corresponding geometric parameters and completing the scanning of the scanned object 10 at the same time, that is, each CT scan can instantly calculate the geometric parameters of the current scan, avoiding errors caused by system offset and other reasons. The rotating platform 11 is detachably connected to a first track 22 on one side and to a second track 32 on the other side. The first support frame 21 is detachably mounted on the first track 22 and is capable of sliding along the first track 22. The second support frame 31 is detachably mounted on the second track 32 and is capable of sliding along the second track 32. In the present invention, the positions of the radiation source 20 and the detector 30 can be flexibly adjusted by moving the first support frame 21 and the second support frame 31 on the first track 22 and the second track 32. The detachable connection of the various components utilizes a modular structure, making system deployment and disassembly more flexible and convenient. After the system is disassembled, its volume can be reduced to fit in a standard suitcase, reducing storage and transportation costs.

[0034] Obviously, those skilled in the art may make various changes and modifications to the invention without departing from the spirit and scope of the invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A portable CT imaging system, characterized in that: It comprises a rotating platform for carrying the scanned object, with a first support frame for carrying the ray source and a second support frame for carrying the detector respectively provided on both sides of the rotating platform; A geometric phantom is fixedly installed in the rotating platform, the radiation source irradiates the scanned object, and the projection of the geometric phantom is located within the receiving range of the detector; One side of the rotating platform is detachably connected to a first track, and the other side is detachably connected to a second track; the first support frame is detachably mounted on the first track and can slide along the first track, and the second support frame is detachably mounted on the second track and can slide along the second track.

2. The portable CT imaging system according to claim 1, wherein: The first track adopts a foldable or retractable structure.

3. The portable CT imaging system according to claim 2, wherein: The second track adopts a foldable or retractable structure.

4. The portable CT imaging system according to claim 1, wherein: The rotating platform is equipped with a drive motor for driving the rotating platform to rotate.

5. The portable CT imaging system according to claim 1, wherein: The geometric phantom includes a plurality of regularly arranged metal markers.

6. The portable CT imaging system according to claim 5, wherein: The metal marker is a tungsten steel ball.

7. The portable CT imaging system according to claim 1, wherein: The first support frame and the second support frame are both made of lightweight materials.

8. The portable CT imaging system according to claim 7, wherein: The lightweight materials include aluminum alloy, titanium alloy, magnesium alloy, engineering plastics and carbon fiber composite materials.

9. The portable CT imaging system according to claim 1, wherein: The two ends of the first track are connected to the first support frame and the rotating platform respectively through a buckle or a threaded structure; the two ends of the second track are connected to the second support frame and the rotating platform respectively through a buckle or a threaded structure.

10. The portable CT imaging system according to claim 1, wherein: The ray source and the detector are respectively powered by a mobile power supply.

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