CN203914938U - A kind of CT system - Google Patents

Abstract

A CT system, a scanning frame is provided with a motor, the motor is provided with a laser positioning light, and the laser positioning light projects a positioning line on a moving bed; the motor drives the positioning line projected by the laser positioning light to move forward and backward along the moving bed; the computer system includes a length calculation module for driving the motor to rotate and calculate the moving distance of the positioning line according to the rotation angle; a simulated tissue module for simulating the height of the human body according to the moving distance and generating human skeleton images or internal organ images marked along the length direction of the human body; And a scanning area positioning module for determining the human body CT scanning area by selecting a specific scale range of the image; wherein, the motor is connected with the signal of the length calculation module, and the length calculation module, the simulated tissue module and the scanning area positioning module are sequentially connected. The utility model can effectively help doctors observe the specific parts to be scanned more intuitively, and have a more accurate estimation of the length and size of the scanning area.

Description

A CT system

technical field

The utility model belongs to the field of medical detection devices, in particular to a CT system.

Background technique

Computed tomography (CT) system is a device that can provide high-resolution cross-sectional images of the human body. It can provide a large amount of accurate and usually difficult-to-obtain information for disease diagnosis, so it has been widely used in various clinical disciplines.

Generally speaking, a CT system includes hardware and software that controls the hardware, and the hardware of the CT system, as shown in Figure 1, is mainly composed of a console 1, a computer system 2, a moving bed 3, and a scanning device. Among them, the moving bed 3 is used to position the patient, and the scanning device includes a scanning frame 4 and a radiation source 5 and a detector 6 arranged in the scanning frame 4, which are used to rotate and irradiate specific parts of the patient around the long axis of the human body. And detect the radiation signal passing through the human body. The console 1 is used for operation control, signal processing and image display, etc.

When using the existing CT system to perform a CT scan on a patient, the doctor first positions the patient on the 3 sides of the mobile bed in the CT system. After the positioning is completed, the laser positioning light is turned on, and the laser positioning light projects a positioning line on the patient's body surface.

Then, the doctor presses the bed entry key or the exit key on the mobile bed 3 to move the mobile bed and determine the starting position of the CT scan. After determining the starting position of the CT scanning, the doctor returns to the console 1 and inputs the scanning length, thus determining the scanning area of the CT scanning device on the patient. Finally, the CT scanning device scans the patient according to the scanning area determined above.

The deficiencies of the scanning positioning method and equipment of the existing CT system are that (1) the scanning area is determined by determining the scanning start position and inputting the scanning length to the console by the laser positioning lamp, and the determination of the scanning end position depends on the input The scan length value. (2) Doctors are required to have an accurate estimate of the length and size of the scanning area, which brings difficulties to some doctors who have no intuitive concept of length. (3) The determination of the scan length is not intuitive, so that in clinical applications, there is often a large deviation between the input scan length and the actual scan size, so that the actual scan area is too large or too small, and the actual scan area is too large , the patient has to receive unnecessary radiation, and the actual scan area is too small, and scans will be missed.

Utility model content

The purpose of the utility model is to provide a CT system, aiming to solve the problem that the scanning positioning method and equipment of the CT system cannot provide intuitive judgment for doctors.

The utility model is achieved in that a CT system includes a computer system, a scanning frame and a moving bed, the scanning frame is provided with a motor, the motor is provided with a laser positioning lamp, and the laser positioning lamp is placed on the moving bed A positioning line is projected; the motor drives the positioning line projected by the laser positioning lamp to move forward and backward along the moving bed;

The computer system includes a length calculation module for driving the motor to rotate and calculating the movement distance of the positioning line according to the rotation angle, for simulating the height of the human body according to the movement distance and generating human skeleton images or internal organ images marked with scales along the length direction of the human body The simulated tissue module, and the scan area positioning module for determining the CT scan area of the human body by selecting the specific scale range of the image; wherein,

The motor is signal-connected to the length calculation module, and the length calculation module, the simulation organization module and the scanning area positioning module are connected in sequence.

Preferably, the CT system also includes a CT scanning system; the computer system also includes a scanning driving module that drives the CT scanning system to perform scanning work, and a moving bed driving module that drives the moving bed;

The scanning area positioning module includes a scanning area marking module for controlling the positioning line to irradiate the two ends of the human body surface area according to the selected image scale range, and a scanning area marking module for controlling the CT scanning system and the moving bed to coordinate the positioning lines at both ends of the human body surface. A cooperative scanning module for performing CT scanning in the area within; wherein, the simulated tissue module, the scanning area marking module, the cooperative scanning module, the scanning driving module and the moving bed driving module are sequentially connected.

Preferably, a top plate is provided on the moving bed at the end away from the scanning frame, and the initial position of the positioning line projected by the laser positioning light coincides with the side of the top plate.

Compared with the shortcomings and deficiencies of the prior art, the utility model has the following beneficial effects: the utility model can effectively help the doctor to observe the specific parts to be scanned more intuitively, so that the doctor can have a more accurate measurement of the length and size of the scanning area. estimate.

Description of drawings

FIG. 1 is a schematic structural diagram of a CT system in the prior art;

Fig. 2 is the structural representation of an embodiment of the utility model CT system;

Fig. 3 is a structural schematic diagram of the computer system in the utility model.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figures 2 and 3, Figure 2 is a schematic structural view of an embodiment of the CT system of the present invention; Figure 3 is a schematic structural view of the computer system of the present invention.

A kind of CT system comprises computer system 2, scanning frame 4 and mobile bed 3, and described scanning frame 4 is provided with motor (not shown in the figure), and described motor is provided with laser positioning light 7, and described laser positioning The lamp projects a positioning line on the moving bed 3; the motor drives the positioning line projected by the laser positioning lamp to move forward and backward along the moving bed 3; The length calculation module 21 is used to simulate the height of the human body according to the moving distance and generates a human body bone image or internal organ image simulation tissue module 22 marked with a scale along the length direction of the human body, and is used to determine the CT of the human body by selecting the specific scale range of the image. The scanning area positioning module 23 of the scanning area; wherein, the motor is connected with the signal of the length calculation module 21, and the length calculation module 21, the simulation organization module 22 and the scanning area positioning module 23 are sequentially connected.

More specifically, in the embodiment of the utility model, the CT system also includes a CT scanning system, that is, a radiation source 5 and a detector 6; the computer system 2 also includes a scanning driver module 24 that drives the CT scanning system to perform scanning work, And the moving bed drive module 25 that drives the moving bed 3 to move;

The scanning area positioning module 23 includes a scanning area marking module 231 for controlling the positioning line to irradiate correspondingly to both ends of the human body surface area according to the selected image scale range, and for controlling the CT scanning system and the moving bed 3 to work together to scan the two ends of the human body surface area. Coordinated scanning module 232 for performing CT scanning in the area within the end positioning line; wherein, the simulated tissue module 22, scanning area marking module 231, cooperative scanning module 232, scanning driving module 24 and moving bed driving module 25 are sequentially connected.

In the embodiment of the utility model, the doctor first positions the patient on the side of the mobile bed 3 in the CT system. After the positioning is completed, the laser positioning lamp 7 is turned on, and the laser positioning lamp 7 projects a positioning line on the patient's body surface. The length calculation module 21 drives the motor to rotate, and the positioning line is accurately measured from the sole of the patient's foot to the top of the head, and then the length calculation module 21 calculates the patient's height according to the rotation angle of the motor and the vertical height of the laser positioning lamp 7 from the moving bed 3, Similarly, doctors can use this method to measure the lengths of various parts of the patient, such as the head, neck, waist, and legs.

On this basis, the simulated tissue module 22 selects and simulates the patient's bone image, nerve image, visceral image, blood vessel image, etc. according to the height of the human body, the length of each body part, and according to actual needs, and marks the images with a scale.

Finally, according to actual needs, for example, when the doctor wants to scan the bone part, internal organ part or blood vessel part of a certain part of the patient's body, he can select the corresponding image, and select the corresponding mark scale on the image through the scanning area positioning module 23, In this way, the area to be scanned is determined, the selected scanning area generates corresponding instructions, and the radiation source 5, the detector 6, and the moving bed 3 are controlled to work together to precisely position and scan the required scanning area of the patient.

In the actual application process of the utility model, the size of the marked scale can be automatically generated as required, and the doctor can achieve the purpose of accurately selecting by enlarging and reducing the marked scale on the display on the console 1 . In addition, because the doctor can call out various body simulation image data of the patient at any time, it helps the doctor to observe the specific parts to be scanned more intuitively, and the doctor can have a more accurate estimate of the length and size of the scanning area.

In the further implementation process, in order to make it easier for the doctor to position the patient on the side of the moving bed 3 in the CT system to obtain more accurate measurement data, in the embodiment of the utility model, the moving bed 3 and A top plate 8 is provided at one end away from the scanning frame 4 , and the initial position of the positioning line projected by the laser positioning lamp coincides with the side of the top plate 8 .

In the actual application process of the present utility model, the patient lies flat on the mobile bed 3, with both feet on the top board 8, and the positioning line projected by the laser positioning lamp starts to move from the top board 8 to the top of the patient's head, which effectively reduces the The measurement error of the patient's body and physical features improves the accuracy of the simulation image generation and ensures the accuracy of the intuitive estimation of the length and size of the scanning area.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (3)

1. A CT system, comprising computer system, scanning frame and moving bed, is characterized in that, described scanning frame is provided with motor, and described motor is provided with laser positioning lamp, and described laser positioning lamp projects on moving bed A positioning line; the positioning line projected by the motor-driven laser positioning lamp moves forward and backward along the moving bed; The computer system includes a length calculation module for driving the motor to rotate and calculating the movement distance of the positioning line according to the rotation angle, for simulating the height of the human body according to the movement distance and generating human skeleton images or internal organ images marked with scales along the length direction of the human body The simulated tissue module, and the scan area positioning module for determining the CT scan area of the human body by selecting the specific scale range of the image; wherein, The motor is signal-connected to the length calculation module, and the length calculation module, the simulation organization module and the scanning area positioning module are connected in sequence. 2. CT system as claimed in claim 1, is characterized in that, this CT system also comprises CT scanning system; Said computer system also comprises the scanning drive module that drives CT scanning system to carry out scanning work, and the mobile that drives mobile bed to move bed drive module; The scanning area positioning module includes a scanning area marking module for controlling the positioning line to irradiate the two ends of the human body surface area according to the selected image scale range, and a scanning area marking module for controlling the CT scanning system and the moving bed to coordinate the positioning lines at both ends of the human body surface. A cooperative scanning module for performing CT scanning in the area within; wherein, the simulated tissue module, the scanning area marking module, the cooperative scanning module, the scanning driving module and the moving bed driving module are sequentially connected. 3 . The CT system according to claim 2 , wherein a top plate is provided on the moving bed at the end away from the scanning frame, and the initial position of the positioning line projected by the laser positioning light coincides with the side of the top plate. 4 .