An automatic gantry tilt compensation system for enhancing the stability of a vehicle-mounted CT scanner

Abstract

This invention relates to the field of vehicle-mounted CT scanner technology and provides an automatic gantry tilt compensation system for enhancing the stability of a vehicle-mounted CT scanner. The system includes a CT scanner gantry and a first tilt sensor and a first level mounted on a tiltable portion of the gantry; a second tilt sensor and a second level mounted on a stationary portion of the gantry; a central processing unit; a spherical support seat mounted on the top of the stationary portion of the gantry to support the tiltable portion; and electrically operated telescopic rods. This invention monitors the tilt status of the vehicle and the CT scanner mounted on the gantry inside the vehicle, transmitting the data to the central processing unit. After processing, the actual tilt angle of the tiltable portion of the gantry is calculated, thus obtaining the true gantry tilt angle of the vehicle-mounted CT scanner. It can control the operation of several electrically operated telescopic rods to adjust the tiltable portion, ensuring the CT scanner mounted on the tiltable portion remains level, thereby guaranteeing the imaging quality of the vehicle-mounted CT scanner.

Description

Technical Field

[0001] This invention belongs to the field of vehicle-mounted CT scanner technology, and in particular relates to an automatic gantry tilt compensation system for enhancing the stability of vehicle-mounted CT scanners. Background Technology

[0002] Typically, CT systems, including the CT scanner and diagnostic bed, are installed in fixed locations such as hospitals. During on-site installation of the CT scanner, due to uneven ground and mechanical errors in the CT scanner gantry, an on-site engineer needs to perform a one-time level calibration of the CT scanner after the gantry is installed. This involves measuring the horizontal angle of the gantry using a level and recording the current angle in a pre-set table within the system to compensate for any horizontal deviations caused by the gantry installation.

[0003] However, in certain special circumstances, such as public health emergencies, mobile CT scanners become necessary to examine patients in temporary areas or at the first opportunity. However, when using a CT scanner with a tilting gantry, the mobile nature of the machine means that its parking position cannot be consistently maintained and kept level. Therefore, the one-time leveling calibration value is not applicable, requiring manual adjustment before each use. This process is time-consuming and labor-intensive, and the mechanical leveling devices are complex and expensive. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide an automatic gantry tilt compensation system for enhancing the stability of a vehicle-mounted CT scanner, capable of detecting the tilt angle of the scanner and automatically leveling it based on the detection data.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to an automatic tilt compensation system for enhancing the stability of a vehicle-mounted CT scanner, comprising a CT scanner frame and a first tilt sensor mounted on a tiltable portion of the CT scanner frame. The first tilt sensor measures the current tilt angle of the tiltable portion and outputs a first angle value. A second tilt sensor is mounted on a stationary portion of the CT scanner frame. The second tilt sensor measures the current tilt angle of the CT scanner frame mounting plane represented by the stationary portion and outputs a second angle value.

[0007] A first level is installed at the middle position of the tiltable part on the CT scanner gantry, used to measure the current level state of the tiltable part of the first level and output a first level value; a second level is installed on the stationary part of the CT scanner gantry, used to measure the current level state of the CT scanner gantry mounting plane represented by the stationary part, and output a first level value.

[0008] A central processing unit is configured to receive the first angle value and the second angle value; and to obtain the tilt angle of the tiltable portion of the frame relative to the mounting plane of the frame by subtracting the second angle value from the first angle value and the fixed deviation of the first tilt sensor and the second tilt sensor.

[0009] A spherical support base is installed on the top of the stationary part of the CT scanner gantry to support the tiltable part. Several electrically operated telescopic rods are installed on the top of the stationary part of the CT scanner gantry and are arranged in a ring at equal intervals around the spherical support. The end of each electrically operated telescopic rod away from the stationary part of the CT scanner gantry is fixedly connected to the tiltable part of the CT scanner gantry.

[0010] As a preferred embodiment of the present invention, the second tilt sensor further detects the motion state of the vehicle body carrying the CT scanner through a built-in gyroscope and outputs the motion state; the motion state is either a moving state or a stationary state.

[0011] As a preferred embodiment of the present invention, the central processing unit is further configured to receive the motion state, and when the motion state is a stationary state, to perform the operation of subtracting the second angle value from the first angle value and the fixed deviation of the first tilt sensor and the second tilt sensor to obtain the tilt angle of the tiltable portion of the frame relative to the mounting plane of the frame.

[0012] As a preferred embodiment of the present invention, the fixed deviation of the first tilt sensor and the second tilt sensor includes: the reading deviation of the first tilt sensor and the second tilt sensor at 0 degrees, and the installation deviation of the mounting surfaces of the first tilt sensor and the second tilt sensor.

[0013] The advantages of this invention are:

[0014] 1. This invention, by installing a first tilt sensor and a first level on the tiltable part of the CT scanner frame and a second tilt sensor and a second level on the stationary part, can monitor the tilt state of the vehicle and the CT scanner mounted on the CT scanner frame at all times during use. The detected values ​​are transmitted to the central processing unit, and after processing, the actual tilt angle of the tiltable part of the frame, that is, the tilt angle of the tiltable part of the frame relative to the mounting plane, is calculated, thereby obtaining the true scaffold tilt angle of the vehicle-mounted CT scanner.

[0015] 2. This invention uses an electric telescopic rod and a spherical support seat installed between the tiltable part and the stationary part. After the central processing unit calculates the actual tilt angle of the frame, it can control the operation of several electric telescopic rods to adjust the tiltable part, so that the CT machine installed on the tiltable part remains horizontal, thereby ensuring the imaging quality of the vehicle-mounted CT. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an automatic gantry tilt compensation system for enhancing the stability of a vehicle-mounted CT scanner according to the present invention.

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0019] Figure 3 This is the front view of the present invention.

[0020] Figure 4 This is a system block diagram of the present invention.

[0021] In the attached diagram: 1. First tilt sensor; 2. Second tilt sensor; 3. First level; 4. Second level; 5. Central processing unit; 6. Electric telescopic rod; 7. Tiltable part; 8. Stationary part; 9. Spherical support base. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention. Specific Implementation Example 1:

[0026] Please see Figure 1-4 As shown, the present invention is an automatic tilt compensation system for enhancing the stability of a vehicle-mounted CT scanner, comprising a CT scanner frame and a first tilt sensor 1 mounted on a tiltable portion 7 of the CT scanner frame. The first tilt sensor 1 is used to measure the current tilt angle of the tiltable portion 7 and output a first angle value; and a second tilt sensor 2 mounted on a stationary portion 8 of the CT scanner frame. The second tilt sensor 2 is used to measure the current tilt angle of the CT scanner frame mounting plane represented by the stationary portion 8 and output a second angle value.

[0027] A first level 3 is installed at the middle position of the tiltable part 7 on the CT machine gantry, which is used to measure the current level state of the tiltable part 7 and output a first level value; a second level 4 is installed on the stationary part 8 on the CT machine gantry, which is used to measure the current level state of the CT machine gantry mounting plane represented by the stationary part 8 and output a first level value.

[0028] The central processing unit 5 is used to receive the first angle value and the second angle value; by subtracting the second angle value from the first angle value and the fixed deviation of the first tilt sensor 1 and the second tilt sensor 2, the tilt angle of the tiltable part 7 of the frame relative to the frame mounting plane is obtained.

[0029] The spherical support seat 9 at the top of the stationary part 8 of the CT machine frame is used to support the tiltable part 7. Several electric telescopic rods 6 are installed on the top of the stationary part 8 of the CT machine frame and are arranged in a ring at equal intervals around the spherical support. The end of the electric telescopic rod 6 away from the stationary part 8 of the CT machine frame is fixedly connected to the tiltable part 7 of the CT machine frame.

[0030] The second tilt sensor 2 further detects the motion state of the vehicle carrying the CT scanner through a built-in gyroscope and outputs the motion state; the motion state is either moving or stationary; the central processing unit 5 is further used to receive the motion state, and when the motion state is stationary, it performs the operation of subtracting the second angle value and the fixed deviation of the first tilt sensor 1 and the second tilt sensor 2 from the first angle value to obtain the tilt angle of the tiltable part 7 of the frame relative to the frame mounting plane.

[0031] The fixed deviations of the first tilt sensor 1 and the second tilt sensor 2 include: the reading deviation of the first tilt sensor 1 and the second tilt sensor 2 at 0 degrees, and the installation deviation of the mounting surfaces of the first tilt sensor 1 and the second tilt sensor 2.

[0032] The central processing unit 5 is electrically connected to the first tilt sensor 1, the second tilt sensor 2, the first level 3, the second level 4 and the electric telescopic rod 6. The central processing unit 5 is used to receive the values ​​transmitted by the first tilt sensor 1, the second tilt sensor 2, the first level 3 and the second level 4 and to control the extension and retraction of the electric telescopic rod 6.

[0033] A first tilt sensor 1 and a first level 3 are installed on the tiltable part 7 of the vehicle-mounted CT scanner frame, and a second tilt sensor 2 and a second level 4 are installed on the stationary part 8. During use, the tilt status of the vehicle and the CT scanner installed on the CT scanner frame inside the vehicle can be monitored at all times, and the detected values ​​are transmitted to the central processing unit 5. After processing, the actual tilt angle of the tiltable part 7 of the frame is calculated, that is, the tilt angle of the tiltable part of the frame relative to the mounting plane, thus obtaining the true frame tilt angle of the vehicle-mounted CT scanner. Specific Implementation Example 2:

[0035] Based on Specific Embodiment 1, the difference in this embodiment is as follows:

[0036] like Figure 1 , 2 As shown, the second level 4 is connected to the transport vehicle via the stationary part 8 on the CT scanner frame. It is used to detect the planar state of the vehicle's carrying platform in use. It works in conjunction with the built-in gyroscope in the second tilt sensor 2 to detect the motion state of the vehicle body carrying the CT scanner and outputs the current state, indicating whether the vehicle is level or tilted. The first level 3 is connected to the installed CT scanner via the tiltable part 7 on the CT scanner frame and is used to detect whether the CT scanner is level in use. Specific Implementation Example 3:

[0038] Based on specific embodiment two, the difference in this embodiment is as follows:

[0039] like Figure 1 , 2 As shown, several electrically operated telescopic rods 6 are connected to the central processing unit 5. The electrically operated telescopic rods 6 are used to adjust the tilt angle and direction of the tiltable part 7 on the CT scanner gantry. After the central processing unit 5 calculates the actual tilt angle of the gantry, it can control the operation of the several electrically operated telescopic rods 6 to adjust the tiltable part 7, so that the CT scanner installed on the tiltable part 7 remains horizontal, thereby ensuring the imaging quality of the vehicle-mounted CT.

[0040] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0041] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0044] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An automatic gantry tilt compensation system for enhancing the stability of a vehicle-mounted CT scanner, characterized in that: Includes a CT scanner gantry and a first tilt sensor (1) mounted on a tiltable portion (7) of the CT scanner gantry. The first tilt sensor (1) is used to measure the current tilt angle of the tiltable portion (7) and output a first angle value. A second tilt sensor (2) is installed on the stationary part (8) of the CT machine gantry. The second tilt sensor (2) is used to measure the current tilt angle of the CT machine gantry mounting plane represented by the stationary part (8) and output a second angle value. A first level (3) is installed at the middle position of the tiltable part (7) on the CT machine frame. The first level (3) is used to measure the current level state of the tiltable part (7) and output a first level value. A second level (4) is installed on the stationary part (8) of the CT machine gantry. The second level (4) is used to measure the current level state of the CT machine gantry mounting plane represented by the stationary part (8) and output a second level value. The central processing unit (5) is used to receive the first angle value and the second angle value; by subtracting the second angle value and the fixed deviation of the first tilt sensor (1) and the second tilt sensor (2) from the first angle value, the tilt angle of the tiltable part (7) of the frame relative to the mounting plane of the frame is obtained; A spherical support base (9) is installed on the top of the stationary part (8) of the CT machine frame to support the tiltable part (7). Several electric telescopic rods (6) are installed on the top of the stationary part (8) of the CT machine frame and are arranged in a ring at equal intervals around the spherical support base (9). The end of the electric telescopic rod (6) away from the stationary part (8) of the CT machine frame is fixedly connected to the tiltable part (7) of the CT machine frame.

2. The automatic gantry tilt compensation system for enhancing the stability of a vehicle-mounted CT scanner according to claim 1, characterized in that, The second tilt sensor (2) further detects the motion state of the vehicle body carrying the CT machine through a built-in gyroscope and outputs the motion state; the motion state is either a moving state or a stationary state.

3. The automatic gantry tilt compensation system for enhancing the stability of a vehicle-mounted CT scanner according to claim 2, characterized in that, The central processing unit (5) is further configured to receive the motion state and, when the motion state is stationary, perform the operation of subtracting the second angle value from the first angle value and the fixed deviation of the first tilt sensor (1) and the second tilt sensor (2) to obtain the tilt angle of the tiltable part (7) of the frame relative to the frame mounting plane.

4. The automatic gantry tilt compensation system for enhancing the stability of a vehicle-mounted CT scanner according to claim 1, characterized in that, The fixed deviations of the first tilt sensor (1) and the second tilt sensor (2) include: the reading deviation of the first tilt sensor (1) and the second tilt sensor (2) at 0 degrees, and the installation deviation of the mounting surfaces of the first tilt sensor (1) and the second tilt sensor (2).

5. The automatic gantry tilt compensation system for enhancing the stability of a vehicle-mounted CT scanner according to claim 1, characterized in that, The first level (3) is connected to the installed CT machine through the tiltable part (7) on the CT machine frame, and is used to detect whether the CT machine is in a horizontal state when in use.

6. The automatic gantry tilt compensation system for enhancing the stability of a vehicle-mounted CT scanner according to claim 1, characterized in that, The central processing unit (5) is electrically connected to the first tilt sensor (1), the second tilt sensor (2), the first level (3), the second level (4) and the electric telescopic rod (6). The central processing unit (5) is used to receive the values ​​transmitted by the first tilt sensor (1), the second tilt sensor (2), the first level (3) and the second level (4) and to control the extension and retraction of the electric telescopic rod (6).

7. The automatic gantry tilt compensation system for enhancing the stability of a vehicle-mounted CT scanner according to claim 1, characterized in that, The electric telescopic rods (6) are connected to the central processing unit (5), and the electric telescopic rods (6) are used to adjust the tilt angle and direction of the tiltable part (7) on the CT machine frame.

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