CT imaging device capable of reducing artifacts

Abstract

The utility model discloses a CT imaging device for reducing artifacts, which comprises a shell, a first moving mechanism, a treatment bed, a second moving mechanism and a treatment head body, the first moving mechanism is arranged in the inner cavity of the shell, the treatment bed is arranged at the moving tail end of the first moving mechanism, the second moving mechanism is arranged in the inner cavity of the shell, and the treatment head body is arranged on the second moving mechanism. A treatment head body is installed at the moving tail end of the second moving mechanism and comprises a scanning frame and a detector body, and the detector body is arranged in an inner cavity of the scanning frame. According to the device, the detector body is used through the treatment head body, so that image quality is improved, noise is reduced through the sound insulation layer, stable X-ray output is provided through the X-ray tube, metal artifacts are reduced through the filter, spectral distribution of the X-rays is better controlled through the multiple layers of collimators, and the patient fixing device is installed, so that the treatment head is more convenient to use. Movement of the patient in the scanning process is reduced, and then artifacts of the CT imaging device are jointly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of CT imaging equipment, in particular to a CT imaging device capable of reducing artifacts. Background Art

[0002] CT imaging device, or computer tomography device, is a medical imaging technology that uses X-rays to penetrate the human body and are received by the detector, and then reconstructs the image of the internal structure of the human body through computer processing. During the CT scanning process, the X-ray source and the corresponding detector rotate around the patient, while the patient moves slowly or remains fixed along the long axis to obtain X-ray projection data at different angles;

[0003] For example, application number CN202010872999.4 provides a CT imaging system and an imaging method thereof, which can significantly reduce artifacts caused by motion, improve the resolution of CT imaging, and achieve ultra-low-dose CT imaging; in the prior art, in CT imaging, artifacts refer to abnormal density changes in the reconstructed image that are inconsistent with the actual anatomical structure. These artifacts may imitate pathological changes or reduce image quality, leading to misdiagnosis or missed diagnosis. Therefore, it is necessary to reduce the impact of artifacts on the detection results.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a CT imaging device with reduced artifacts is proposed to achieve a more practical purpose. Utility Model Content

[0005] The utility model aims to provide a CT imaging device with reduced artifacts, so as to solve the problem of reducing the influence of artifacts on detection results proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CT imaging device for reducing artifacts, comprising a shell, a first moving mechanism, a treatment bed, a second moving mechanism and a treatment head body, wherein the first moving mechanism is installed in the inner cavity of the shell, and the treatment bed is installed at the moving end of the first moving mechanism, the second moving mechanism is installed in the inner cavity of the shell, and the treatment head body is installed at the moving end of the second moving mechanism, the treatment head body comprises a scanning frame and a detector body, the inner cavity of the scanning frame is provided with the detector body, and an X-ray tube is provided above the detector body, a transmitter is provided on one side of the detector body, and the detector body, the detector body, the X-ray tube and the transmitter are electrically connected to a computer, the detector body, the detector body, the X-ray tube and the transmitter are all installed in the inner cavity of a shielding box, and a sound insulation layer is provided between the shielding box and the scanning frame, the inner cavity of the shielding box is provided with a filter and a collimator, and the inner cavity of the shielding box and the outer surface of the scanning frame are provided with a temperature sensor and a humidity sensor, and the lower end surface of the scanning frame is provided with an outlet.

[0007] Furthermore, the first moving mechanism includes a first adjusting servo motor and a first connecting block, the first adjusting servo motor is installed at the bottom of the inner cavity of the shell, the output end of the first adjusting servo motor is provided with a first threaded rod, and a first slide rail is provided above the first threaded rod, the first threaded rod and the first slide rail both penetrate the first connecting block horizontally, and the contact surfaces of the first threaded rod and the first slide rail with the first connecting block are respectively provided with threaded holes and slide holes, and the upper end surface of the first connecting block is fixedly connected to the treatment bed through a first fixed platform.

[0008] Furthermore, the second moving mechanism includes a second adjusting servo motor and a second connecting block, the second adjusting servo motor is installed in the inner cavity of the shell, a second threaded rod is provided at the output end of the second adjusting servo motor, and a second slide rail is provided on one side of the second threaded rod, the second threaded rod and the second slide rail both longitudinally penetrate the second connecting block, and the contact surfaces of the second threaded rod and the second slide rail with the second connecting block are respectively provided with threaded holes and slide holes, and a second fixed platform on one side of the second connecting block is fixedly connected to the treatment head body.

[0009] Furthermore, the first connecting block and the first threaded rod form a threaded connection structure, the first connecting block and the first slide rail form a sliding structure, the second connecting block and the second threaded rod form a threaded connection structure, and the second connecting block and the second slide rail form a sliding structure.

[0010] Furthermore, the detector body, X-ray tube, emitter, filter and collimator are electrically connected to a computer, and the emission port is located directly above the treatment bed.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the CT imaging device for reducing artifacts uses a detector body through a treatment head body to improve image quality and uses a sound insulation layer to reduce noise, provides stable X-ray output through an X-ray tube, uses a filter to reduce metal artifacts, uses a multi-layer collimator to better control the spectral distribution of X-rays, and is equipped with a patient fixation device to reduce the movement of the patient during the scanning process, thereby jointly reducing the effect of artifacts of the CT imaging device;

[0012] The CT imaging device with reduced artifacts adjusts the left and right movement of the treatment bed through the first moving mechanism so as to treat the person on the treatment bed, wherein the first adjusting servo motor is started, the first adjusting servo motor drives the first threaded rod to rotate, and when the first threaded rod rotates, the first connecting block moves with the rotation of the first threaded rod, and the first connecting block slides with the first slide rail, so as to finally drive the first fixed table to move, so that the treatment bed moves left and right, wherein the second adjusting servo motor in the second moving mechanism is started, the second adjusting servo motor drives the second threaded rod to rotate, and when the second threaded rod rotates, the second connecting block moves with the rotation of the second threaded rod, and the second connecting block slides with the second slide rail, so as to move the second fixed table up and down, so as to finally drive the treatment head body to move up and down, and then the positions of the treatment bed and the treatment head body are adjusted respectively by the first moving mechanism and the second moving mechanism, so that the treatment head body treats the person on the treatment bed, wherein the movement of the patient during the scanning process is reduced by the first moving mechanism and the second moving mechanism, so that the CT imaging device has the effect of reducing artifacts;

[0013] The CT imaging device with reduced artifacts scans a patient through a treatment head body, wherein a detector body is used to improve image quality and a sound insulation layer is used to reduce noise, wherein an X-ray tube is used to provide a more stable X-ray output, wherein a filter and a collimator are used to reduce metal artifacts and a multi-layer collimator is used to better control the spectral distribution of X-rays, and the device is installed above the detector body through an emitter, and the exit port is installed on the bottom end surface of the scanning frame, while the electronic components in the treatment head body are all installed in a shielding box, and the electronic components in the treatment head body are electrically connected to a computer, and the electronic components in the treatment head body are all installed on the scanning frame, and a temperature sensor and a humidity sensor are used to improve the environmental conditions of the scanning room and reduce changes in equipment performance, and the above-mentioned structure and installation components are used to reduce the effect of artifacts of the CT imaging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front view structure of a CT imaging device for reducing artifacts according to the utility model;

[0015] Figure 2 This is a schematic diagram of the front view structure of a treatment head body of a CT imaging device for reducing artifacts according to the utility model;

[0016] Figure 3 This is a schematic diagram of the front view structure of the first moving mechanism of a CT imaging device for reducing artifacts according to the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the front view structure of the second moving mechanism of a CT imaging device for reducing artifacts.

[0018] In the figure: 1, shell; 2, first moving mechanism; 201, first adjusting servo motor; 202, first connecting block; 203, first threaded rod; 204, first slide rail; 205, first fixed table; 3, treatment bed; 4, second moving mechanism; 401, second adjusting servo motor; 402, second connecting block; 403, second threaded rod; 404, second slide rail; 405, second fixed table; 5, treatment head body; 501, scanning frame; 502, detector body; 503, X-ray tube; 504, transmitter; 505, computer; 506, shielding box; 507, sound insulation layer; 508, filter; 509, collimator; 5010, exit port. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 4 The utility model provides a technical solution: a CT imaging device for reducing artifacts, comprising a shell 1, a first moving mechanism 2, a treatment bed 3, a second moving mechanism 4 and a treatment head body 5, wherein the first moving mechanism 2 is installed in the inner cavity of the shell 1, and the treatment bed 3 is installed at the moving end of the first moving mechanism 2, the inner cavity of the shell 1 is installed with the second moving mechanism 4, and the moving end of the second moving mechanism 4 is installed with the treatment head body 5, the treatment head body 5 comprises a scanning frame 501 and a detector body 502, the inner cavity of the scanning frame 501 is provided with the detector body 502, and an X-ray tube 503 is provided above the detector body 502, and a transmitter is provided on one side of the detector body 502 504, and the detector body 502, the detector body 502, the X-ray tube 503 and the emitter 504 are electrically connected to the computer 505, the detector body 502, the detector body 502, the X-ray tube 503 and the emitter 504 are all installed in the inner cavity of the shielding box 506, and a sound insulation layer 507 is provided between the shielding box 506 and the scanning frame 501, the inner cavity of the shielding box 506 is provided with a filter 508 and a collimator 509, and the inner cavity of the shielding box 506 and the outer surface of the scanning frame 501 are provided with a temperature sensor and a humidity sensor, so as to improve the environmental conditions of the scanning room and reduce the change of equipment performance, and the lower end surface of the scanning frame 501 is provided with an outlet 5010;

[0021] The patient is scanned by the treatment head body 5, wherein the detector body 502 is used to improve the image quality and the sound insulation layer 507 is used to reduce noise, wherein the X-ray tube 503 is used to provide a more stable X-ray output, wherein the filter 508 and the collimator 509 are used to reduce metal artifacts and the multi-layer collimator 509 is used to better control the spectral distribution of the X-rays, and since the emitter 504 of this device is installed above the detector body 502, and the exit port 5010 is installed on the bottom end surface of the scanning frame 501, and the electronic components in the treatment head body 5 are all installed in the shielding box 506, and the electronic components in the treatment head body 5 are electrically connected to the computer 505, and the electronic components in the treatment head body 5 are all installed on the scanning frame 501, the above structure and installation components are used to reduce the effect of artifacts of the CT imaging device;

[0022] The first moving mechanism 2 includes a first adjusting servo motor 201 and a first connecting block 202. The first adjusting servo motor 201 is installed at the bottom of the inner cavity of the housing 1. The output end of the first adjusting servo motor 201 is provided with a first threaded rod 203, and a first slide rail 204 is provided above the first threaded rod 203. The first threaded rod 203 and the first slide rail 204 both penetrate the first connecting block 202 horizontally, and the contact surfaces of the first threaded rod 203 and the first slide rail 204 with the first connecting block 202 are respectively provided with threaded holes and slide holes. The upper end surface of the first connecting block 202 is fixedly connected to the treatment bed 3 through the first fixing platform 205. Next, the second moving mechanism 4 includes a second adjusting servo motor 401 and a second connecting block 402. The second adjusting servo motor 401 is installed in the inner cavity of the housing 1. A second threaded rod 403 is provided at the output end of the second adjusting servo motor 401, and a second slide rail 404 is provided on one side of the second threaded rod 403. The second threaded rod 403 and the second slide rail 404 both longitudinally penetrate the second connecting block 402, and the contact surfaces of the second threaded rod 403 and the second slide rail 404 with the second connecting block 402 are respectively provided with threaded holes and slide holes. A second fixing platform 405 on one side of the second connecting block 402 is fixedly connected to the treatment head body 5.

[0023] The first moving mechanism 2 is used to adjust the left and right movement of the treatment bed 3 so as to treat the person on the treatment bed 3. The first adjusting servo motor 201 is started, and the first adjusting servo motor 201 drives the first threaded rod 203 to rotate. When the first threaded rod 203 rotates, the first connecting block 202 moves with the rotation of the first threaded rod 203. At the same time, the first connecting block 202 slides with the first slide rail 204, so as to finally drive the first fixed platform 205 to move, so that the treatment bed 3 moves left and right. The second adjusting servo motor 401 in the second moving mechanism 4 is started, and the second adjusting servo motor 401 drives the second threaded rod 4 03 rotates, and when the second threaded rod 403 rotates, the second connecting block 402 moves with the rotation of the second threaded rod 403, and at the same time, the second connecting block 402 slides with the second slide rail 404, so that the second fixed platform 405 moves up and down, so as to finally drive the treatment head body 5 to move up and down, and then use the first moving mechanism 2 and the second moving mechanism 4 to adjust the positions of the treatment bed 3 and the treatment head body 5 respectively, so that the treatment head body 5 can treat the person on the treatment bed 3, wherein the first moving mechanism 2 and the second moving mechanism 4 are used to reduce the movement of the patient during the scanning process, so that the CT imaging device has the effect of reducing artifacts;

[0024] The first connection block 202 and the first threaded rod 203 form a threaded connection structure, the first connection block 202 and the first slide rail 204 form a sliding structure, the second connection block 402 and the second threaded rod 403 form a threaded connection structure, the second connection block 402 and the second slide rail 404 form a sliding structure, the detector body 502, the X-ray tube 503, the emitter 504, the filter 508 and the collimator 509 are electrically connected to the computer 505, and the emission port 5010 is located directly above the treatment bed 3.

[0025] Working principle: When a CT imaging device for reducing artifacts is used, the first adjusting servo motor 201 is started, the first adjusting servo motor 201 drives the first threaded rod 203 to rotate, and when the first threaded rod 203 rotates, the first connecting block 202 moves with the rotation of the first threaded rod 203, and the first connecting block 202 slides with the first slide rail 204, so as to finally drive the first fixed platform 205 to move, so that the treatment bed 3 moves left and right, wherein the second adjusting servo motor 401 in the second moving mechanism 4 is started, the second adjusting servo motor 401 drives the second threaded rod 403 to rotate, and when the second threaded rod 403 rotates, the second connecting block 402 moves with the rotation of the second threaded rod 403, and the second connecting block 402 slides with the second slide rail 404, so that the second fixed platform 405 moves up and down, so as to finally drive the treatment head body 5 to move up and down, Then, the positions of the treatment bed 3 and the treatment head body 5 are adjusted respectively by the first moving mechanism 2 and the second moving mechanism 4, so that the treatment head body 5 can treat the person on the treatment bed 3, and the treatment head body 5 can scan the patient, wherein the detector body 502 is used to improve the image quality and the sound insulation layer 507 is used to reduce noise, wherein the X-ray tube 503 is used to provide a more stable X-ray output, wherein the filter 508 and the collimator 509 are used to reduce metal artifacts and the multi-layer collimator 509 is used to better control the spectral distribution of the X-ray, and this device is installed above the detector body 502 through the emitter 504, and the outlet 5010 is installed on the bottom end surface of the scanning frame 501, and the electronic components in the treatment head body 5 are all installed in the shielding box 506, and the electronic components in the treatment head body 5 are electrically connected to the computer 505, and the electronic components in the treatment head body 5 are all installed on the scanning frame 501.

Claims

1. A CT imaging device for reducing artifacts, comprising a housing (1), a first moving mechanism (2), a treatment bed (3), a second moving mechanism (4) and a treatment head body (5), characterized in that: The first moving mechanism (2) is installed in the inner cavity of the shell (1), and a treatment bed (3) is installed at the moving end of the first moving mechanism (2); the second moving mechanism (4) is installed in the inner cavity of the shell (1), and a treatment head body (5) is installed at the moving end of the second moving mechanism (4); the treatment head body (5) comprises a scanning frame (501) and a detector body (502); the inner cavity of the scanning frame (501) is provided with a detector body (502), and an X-ray tube (503) is arranged above the detector body (502); a transmitter (504) is arranged on one side of the detector body (502), and the detector body (502) and the detector body (503) are arranged on the inner cavity of the scanning frame (501). (502), an X-ray tube (503) and an emitter (504) are electrically connected to a computer (505); the detector body (502), the detector body (502), the X-ray tube (503) and the emitter (504) are all installed in the inner cavity of a shielding box (506); a sound insulation layer (507) is provided between the shielding box (506) and the scanning frame (501); a filter (508) and a collimator (509) are provided in the inner cavity of the shielding box (506); a temperature sensor and a humidity sensor are provided in the inner cavity of the shielding box (506) and the outer surface of the scanning frame (501); and an emission port (5010) is provided on the lower end surface of the scanning frame (501).

2. The CT imaging device for reducing artifacts according to claim 1, characterized in that: The first moving mechanism (2) comprises a first adjusting servo motor (201) and a first connecting block (202); the first adjusting servo motor (201) is mounted at the bottom of the inner cavity of the housing (1); a first threaded rod (203) is arranged at the output end of the first adjusting servo motor (201); a first slide rail (204) is arranged above the first threaded rod (203); the first threaded rod (203) and the first slide rail (204) both penetrate the first connecting block (202) transversely; contact surfaces of the first threaded rod (203) and the first slide rail (204) with the first connecting block (202) are respectively provided with threaded holes and slide holes; an upper end surface of the first connecting block (202) is fixedly connected to the treatment bed (3) via a first fixing platform (205).

3. The CT imaging device for reducing artifacts according to claim 2, characterized in that: The second moving mechanism (4) comprises a second adjusting servo motor (401) and a second connecting block (402); the second adjusting servo motor (401) is mounted in the inner cavity of the housing (1); a second threaded rod (403) is arranged at the output end of the second adjusting servo motor (401); a second slide rail (404) is arranged on one side of the second threaded rod (403); the second threaded rod (403) and the second slide rail (404) both longitudinally penetrate the second connecting block (402); contact surfaces of the second threaded rod (403) and the second slide rail (404) with the second connecting block (402) are respectively provided with threaded holes and slide holes; a second fixing platform (405) on one side of the second connecting block (402) is fixedly connected to the treatment head body (5).

4. The CT imaging device for reducing artifacts according to claim 3, characterized in that: The first connecting block (202) and the first threaded rod (203) form a threaded connection structure, the first connecting block (202) and the first slide rail (204) form a sliding structure, the second connecting block (402) and the second threaded rod (403) form a threaded connection structure, and the second connecting block (402) and the second slide rail (404) form a sliding structure.

5. The CT imaging device for reducing artifacts according to claim 4, characterized in that: The detector body (502), the X-ray tube (503), the emitter (504), the filter (508) and the collimator (509) are electrically connected to the computer (505), and the emission port (5010) is located directly above the treatment bed (3).

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