Slide rail CT guided accelerator treatment system

Abstract

The utility model discloses a slide rail CT (Computed Tomography) guided accelerator treatment system, which belongs to the field of medical instruments, realizes the process of one-time positioning, resetting and treatment of a patient by sharing a treatment bed with an accelerator through CT, reduces the influence caused by multiple positioning and eliminates the error caused by the difference of different beds. The intelligent positioning auxiliary system can monitor the position of the patient in real time through the body position information of the patient, the position accuracy in the treatment process is guaranteed, and the position precision in the treatment process is improved. The system mainly comprises a CT and an accelerator, a treatment bed is further arranged between the CT and the accelerator, the treatment bed is a center rotation type treatment bed, the CT is installed on a moving mechanism, and the motion central axis of the CT, the rotation center of the treatment bed and the center of the accelerator are collinear; the intelligent positioning auxiliary system comprises a positioning auxiliary device arranged on one side of the treatment bed and a sensing device arranged at the bottom of a bed board of the treatment bed. The radiation therapy apparatus is mainly used for radiation therapy.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a slide rail CT guided accelerator treatment system. Background Art

[0002] At present, patients need to undergo a pre-treatment scan on a large-aperture CT before radiotherapy, and then go to the accelerator for treatment after the scan. Since two positioning operations are required, it is difficult to ensure that the two positioning operations on the large-aperture CT scanning bed and the accelerator treatment bed are the same. At the same time, the large-aperture CT scanning bed and the accelerator treatment bed are different, and the patient's sinking amount when positioning the two beds is also different. Based on the above reasons, there is a deviation in the position during scanning on the large-aperture CT and accelerator treatment, which leads to deviations during treatment and affects the final treatment effect. At the same time, since patients need to be positioned in the CT examination room and the accelerator treatment room respectively, the process is complicated, which increases the burden on patients and affects the treatment efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a slide rail CT guided accelerator treatment system, which uses CT and accelerator to share a treatment bed, realizes the patient's one-time positioning, resetting, and treatment process, reduces the impact of multiple positioning, and eliminates the errors caused by differences between different beds; the intelligent positioning auxiliary system can monitor the patient's position in real time through the patient's body position information, ensure the position accuracy during the treatment process, and improve the position accuracy during the treatment process.

[0004] The utility model is realized by the following technical solutions:

[0005] A slide rail CT guided accelerator treatment system comprises a CT and an accelerator, wherein a treatment bed is arranged between the CT and the accelerator, wherein the treatment bed is a centrally rotating treatment bed, wherein the CT is mounted on a moving mechanism, wherein the movement center axis of the CT, the rotation center of the treatment bed and the center of the accelerator are collinear, so that the center of the patient remains unchanged before and after the rotation of the treatment bed, thereby ensuring the treatment accuracy; and an intelligent positioning auxiliary system is also included, wherein the intelligent positioning auxiliary system comprises a plurality of positioning auxiliary devices arranged on one side of the treatment bed and a plurality of sensing devices arranged on the bottom of the bed board of the treatment bed.

[0006] Furthermore, the mobile mechanism includes a symmetrically arranged base, which is fixed on the ground, and is provided with a slide rail on the base, and a rack is provided on the base on the side of the slide rail, and a slide seat is slidably provided on the slide rails on both sides, and a mounting seat is provided on the slide seats on both sides, and the two mounting seats are connected by a transmission shaft, and a bearing is provided between the transmission shaft and the mounting seat, and gears are provided on both sides of the transmission shaft, and the gears are meshed with the racks. A driving motor is fixedly installed on one side of the slide seat, and the output shaft of the driving motor is connected to the transmission shaft through a coupling, and the CT is installed on the mounting seat.

[0007] Furthermore, a magnetic scale is fixedly installed on the base on one side, and a measuring head that cooperates with the magnetic scale is installed at the bottom of the slide. The magnetic scale and the measuring head cooperate to collect real-time position and regulate the drive motor.

[0008] Furthermore, both ends of the base are provided with limit switches, and the slide seat is provided with limit blocks cooperating with the limit switches for movement limit at both ends.

[0009] Furthermore, the two gears and the rack are arranged in a staggered manner to eliminate the gap between the gears and the rack when changing the direction of movement, thereby ensuring movement accuracy.

[0010] Furthermore, the positioning auxiliary device is a high-resolution camera, which is located on the side and above the treatment bed. The high-resolution camera collects patient position information, captures the patient's position and movement in real time, monitors changes in the patient's position during treatment, and verifies the positioning accuracy of the treatment bed after switching between two working positions.

[0011] Furthermore, the sensing device is a pressure sensor, which is used to collect historical patient positioning data, including patient weight, bed sinking, etc., and combine the body position information collected by a high-resolution camera to train a machine learning model to predict and adjust the optimal position of the patient's treatment bed, thereby improving patient comfort and safety.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By using CT and accelerator to share a treatment bed, the patient can be positioned, repositioned, and treated in one go, which reduces the impact of multiple positioning and eliminates the errors caused by differences between different beds.

[0014] 2. The intelligent positioning assistance system based on cameras and pressure sensors can monitor the patient's position in real time through the patient's position information, ensure the position accuracy during treatment, improve the position accuracy during treatment, provide the patient with the best position, and ensure the accuracy and effectiveness of medical treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the mobile mechanism of the utility model.

[0017] In the figure: 1. CT; 2. Moving mechanism; 3. Treatment bed; 4. Accelerator; 5. Positioning auxiliary device; 6. Sensing device; 7. Base; 8. Slide rail; 9. Rack; 10. Drive motor; 11. Mounting base; 12. Measuring head; 13. Limit switch; 14. Gear; 15. Transmission shaft 16. Magnetic scale. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] like Figure 1 As shown, embodiment 1, a slide rail CT guided accelerator treatment system, includes CT1 and accelerator 4, a treatment bed 3 is also arranged between CT1 and accelerator 4, the treatment bed 3 is a central rotating treatment bed, CT1 is installed on the moving mechanism 2, the movement axis of CT1, the rotation center of the treatment bed 3 and the center of the accelerator 4 are collinear, so that the center of the patient remains unchanged before and after the rotation of the treatment bed 3, thereby ensuring the treatment accuracy; it also includes an intelligent positioning auxiliary system, the intelligent positioning auxiliary system includes a plurality of positioning auxiliary devices 5 arranged on one side of the treatment bed 3 and a plurality of sensing devices 6 arranged on the bottom of the bed board of the treatment bed 3.

[0020] like Figure 2 As shown, embodiment 2, a slide rail CT guided accelerator treatment system, the moving mechanism 2 includes a symmetrically arranged base 7, the base 7 is fixed on the ground, the base 7 is provided with slide rails 8, the base 7 on the side of the slide rails 8 is provided with racks 9, slide seats are slidably provided on the slide rails 8 on both sides, and mounting seats 11 are provided on the slide seats on both sides. The two mounting seats 11 are connected by a transmission shaft 15, and a bearing is provided between the transmission shaft 15 and the mounting seat 11. Gears 14 are provided on both sides of the transmission shaft 15, and the gears 14 are meshed with the racks 9. A driving motor 10 is fixedly installed on one side of the slide seat, and the output shaft of the driving motor 10 is connected to the transmission shaft 15 through a coupling, and CT1 is installed on the mounting seat 11; a magnetic scale 16 is also fixedly installed on the base 7 on one side, and a measuring head 12 cooperating with the magnetic scale 16 is installed at the bottom of the slide seat, and the magnetic scale 16 and the measuring head 12 cooperate to collect real-time position and regulate the driving motor 10; the base 7 are provided with limit switches 13 at both ends, and the slide is provided with limit blocks that cooperate with the limit switches 13, which are used to limit the movement of the two ends; the two gears 14 and the rack 9 are arranged in a staggered manner, which are used to eliminate the gap between the gears 14 and the rack 9 when changing the movement direction, so as to ensure the movement accuracy; the positioning auxiliary device 5 is a high-resolution camera, which is located on the side and above the treatment bed 3. The patient's body position information is collected by the high-resolution camera, the patient's body position and movement are captured in real time, the changes in the patient's body position during the treatment process are monitored, and the positioning accuracy of the treatment bed 3 after switching between the two working positions is verified; the sensing device 6 is a pressure sensor, which is used to collect the patient's historical positioning data, including the patient's weight, the sinking of the bed board, etc., and the machine learning model is trained in combination with the body position information collected by the high-resolution camera to predict and adjust the optimal position of the patient's treatment bed, so as to improve the patient's comfort and safety. The rest is the same as Example 1.

[0021] CT1 is installed on the mobile mechanism 2 and can realize forward and backward movement. The treatment bed 3 is located between the accelerator 4 and CT1. The treatment bed 3 can rotate around the center and has two working positions: the accelerator treatment position and the CT scanning position. The two positions differ by 180°. The movement axis of the mobile CT1 can pass through the rotation center of the treatment bed and the accelerator center to ensure that the patient center remains unchanged before and after the rotation of the treatment bed 3 to ensure the treatment accuracy. The high-resolution camera 5 of the intelligent positioning auxiliary system is installed on the side or above the bed to detect the patient's body position information. The pressure sensor 6 is set under the bed board to detect the patient's weight or the amount of bed board sinking.

Claims

1. A sliding rail CT guided accelerator treatment system, characterized in that: The invention comprises a CT (1) and an accelerator (4), wherein a treatment bed (3) is arranged between the CT (1) and the accelerator (4), wherein the treatment bed (3) is a centrally rotating treatment bed, wherein the CT (1) is mounted on a moving mechanism (2), wherein the central axis of movement of the CT (1), the rotation center of the treatment bed (3) and the center of the accelerator (4) are collinear; and further comprises an intelligent positioning auxiliary system, wherein the intelligent positioning auxiliary system comprises a positioning auxiliary device (5) arranged on one side of the treatment bed (3) and a sensing device (6) arranged on the bottom of the bed board of the treatment bed (3).

2. The slide rail CT guided accelerator treatment system according to claim 1, characterized in that: The mobile mechanism (2) comprises a symmetrically arranged base (7), wherein the base (7) is provided with a slide rail (8), the base (7) on the side of the slide rail (8) is provided with a rack (9), the slide rails (8) on both sides are provided with a slide seat, the slide seats on both sides are provided with a mounting seat (11), the two mounting seats (11) are connected by a transmission shaft (15), a bearing is provided between the transmission shaft (15) and the mounting seat (11), gears (14) are provided on both sides of the transmission shaft (15), the gears (14) are meshed with the rack (9), a driving motor (10) is fixedly installed on one side of the slide seat, the output shaft of the driving motor (10) is connected to the transmission shaft (15) through a coupling, and the CT (1) is installed on the mounting seat (11).

3. The slide rail CT guided accelerator treatment system according to claim 2, characterized in that: A magnetic scale (16) is also fixedly mounted on the base (7) at one side, and a measuring head (12) matched with the magnetic scale (16) is mounted on the bottom of the slide seat.

4. The slide rail CT guided accelerator treatment system according to claim 2, characterized in that: Both ends of the base (7) are provided with limit switches (13), and the slide seat is provided with limit blocks that cooperate with the limit switches (13).

5. The slide rail CT guided accelerator treatment system according to claim 2, characterized in that: The two gears (14) and the rack (9) are arranged in a staggered manner.

6. The slide rail CT guided accelerator treatment system according to claim 1, characterized in that: The positioning auxiliary device (5) is a high-resolution camera, which is located on the side and above the treatment bed (3).

7. The slide rail CT guided accelerator treatment system according to claim 1, characterized in that: The sensing device (6) is a pressure sensor.

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