CN213635029U

CN213635029U - Spiral CT simulation model capable of being controlled by simulation software

Info

Publication number: CN213635029U
Application number: CN202023034674.3U
Authority: CN
Inventors: 汪红志; 徐罗元
Original assignee: Shanghai Peiyun Education Technology Co ltd
Current assignee: Shanghai Peiyun Education Technology Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-07-06
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses a but spiral CT simulation model of emulation software control, including spiral CT frame model and inspection bed model, the frame ring internal surface of spiral CT frame model is provided with annular lamp area, the motion control part is connected to the inspection bed board of inspection bed model, be provided with connection control circuit in the spiral CT frame model. The method has the advantages that the occupied area is small, the price is low, the positioning operation practical training of CT examination technicians is developed in batch and the CT examination process is known under the condition of no ray emergence, and the motion difference of conventional tomographic CT scanning and spiral CT scanning is visually recognized; the system can be linked with numerical simulation CT software to realize the simulation of the overall examination effect from a scene to a CT image.

Description

Spiral CT simulation model capable of being controlled by simulation software

Technical Field

The utility model relates to a spiral CT simulation model specifically relates to a but spiral CT simulation model of emulation software control.

Background

X-ray CT technology is in an important position in modern hospital diagnostics. The fast and clear human body internal tomographic image and other special imaging technologies provide visual diagnosis basis for accurate diagnosis of diseases, and are used more and more importantly in clinic.

The loading of CT is on the order of 1000 machines per year, which is also a significant requirement for production, installation, operational use and service technicians. This is particularly important for the cultivation of the skilled worker, especially for experimental and practical cultivation.

However, the mass and standardized large-scale experiment teaching of the X-ray CT is not effectively developed all the time, and the reasons are that the equipment is large in size, expensive, large in occupied area, harmful to radiation, limited in experiment conditions and the like, so that the current main experiment form is demonstration under a single device and visiting experiment in a hospital; to realize batch, normalized and large-scale practical operation experiments, two basic conditions or two development trends are provided: from large-scale real machine experiments to small-scale special experiment instruments; the second is from the real machine operation to the virtual software operation. Therefore, the development of a simulation model which is similar to the structure and the operation of a real machine and can visually observe the motion of the CT machine frame and the examination bed in different scanning modes is greatly beneficial to the practical training of relevant CT technical talents. The scaled simulation model can save experimental field and can not really scan after all. The equal-scale model can carry out the positioning operation training of the real human body.

Disclosure of Invention

To the technical problem who exists above-mentioned, the utility model discloses the purpose is: the spiral CT simulation model controlled by simulation software is provided, the occupied area is small, the price is low, the positioning operation practical training of CT examination technicians is developed in batch and the CT examination process is known under the condition of no ray emergence, and the motion difference between conventional fault CT scanning and spiral CT scanning is visually recognized; the system can be linked with numerical simulation CT software to realize the simulation of the overall examination effect from a scene to a CT image.

The technical scheme of the utility model is that:

a spiral CT simulation model capable of being controlled by simulation software comprises a spiral CT frame model and an examination bed model, wherein an annular lamp strip is arranged on the inner surface of a frame ring body of the spiral CT frame model, an examination bed board of the examination bed model is connected with a motion control part, and a connection control circuit is arranged in the spiral CT frame model.

In the preferred technical scheme, the motion control part includes step motor, lead screw guide rail, removal slip table and limit switch, step motor is driven by single chip microcomputer control motor driver, the removal slip table of connecting on the lead screw guide rail is fixed with the inspection bed board, the lead screw guide rail is driven by step motor, limit switch sets up in the both ends of inspection bed board.

In the preferred technical scheme, the annular lamp strip is arranged on a center ring of the inner wall of the frame ring body hole, and the annular lamp strip comprises a plurality of laser diodes which are uniformly distributed.

In a preferred technical scheme, the laser diode is controlled to emit light of at least two colors, one color represents X-ray exposure, the other color represents a detector, and the laser diode is connected with a state control circuit.

In the preferred technical scheme, the spiral CT machine frame model further comprises positioning lamps, wherein the positioning lamps are installed at the uppermost end and the left side and the right side of the inlet of the spiral CT machine frame model and used for determining the horizontal vertical position and the 0 position.

In the preferred technical scheme, the connection control circuit comprises a single chip microcomputer control chip, a USB connection circuit and a control signal output, wherein the USB connection circuit is used for communicating with an upper computer, and the single chip microcomputer control chip is used for receiving a control command of the upper computer, translating the control command into a control command for checking the movement of the bed board, the annular lamp strip and the positioning lamp and outputting the control command.

In the preferred technical scheme, the intelligent control device further comprises a control button and a liquid crystal display screen, wherein the control button is arranged on the spiral CT rack model and comprises a bed entering button, a bed exiting button, a key bed entering button, a key bed exiting button and a positioning lamp switch button, and the liquid crystal display screen is arranged at the top of the front of the spiral CT rack model and used for dynamically displaying motion information.

Compared with the prior art, the utility model has the advantages that:

the method has the advantages that the occupied area is small, the price is low, the positioning operation practical training of CT examination technicians is developed in batch and the CT examination process is known under the condition of no ray emergence, and the motion difference of conventional tomography CT scanning and spiral CT scanning is visually recognized; the system can be linked with numerical simulation CT software to realize the simulation of the overall examination effect from a scene to a CT image. The practical teaching training efficiency of the hardware is high, and the teaching effect is good.

Drawings

The invention will be further described with reference to the following drawings and examples:

FIG. 1 is a schematic structural diagram of a spiral CT simulation model controlled by simulation software according to the present invention;

FIG. 2 is an internal side view of the model of the examining table of the present invention;

FIG. 3 is a schematic structural view of the frame ring body of the present invention;

fig. 4 is a schematic structural view of the ring-shaped light belt of the present invention;

fig. 5 is an internal top view of the model of the examination bed of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Example (b):

as shown in fig. 1, a spiral CT simulation model controlled by simulation software includes a spiral CT rack model 10 and an examination bed model 20, an annular lamp strip 5 is arranged on the inner surface of a rack ring body 2 of the spiral CT rack model 10, an examination bed board 7 of the examination bed model 20 is connected with a motion control component, and a control circuit is arranged in and connected with the spiral CT rack model 10.

The spiral CT frame model comprises a frame 1 and a frame ring body 2, and can be used for scaling the frame shell of a certain type of clinical magnetic resonance equipment. The scaling may be determined according to actual requirements and site size, for example, a preferred example is 6: 1 ratio.

In a preferred embodiment, the side of the base 1 can be provided with a power hole and a USB interface 9.

As shown in fig. 2, the examination bed model 20 includes an examination bed base 8 and an examination table 7, and the examination table 7 is further connected to an internal motion control unit 30. Which may be a scaling of a certain model of clinical magnetic resonance examination couch housing. The scaling may be determined according to actual requirements and site size, for example, a preferred example is 6: 1 ratio.

The human body model 6 is a scaling of the actual human body to be examined. According to the same scale of the spiral CT frame model and the examining table model, the example is 6: 1 ratio. The model is made of epoxy resin materials through 3D printing.

Spiral CT frame model 10 still includes control button 4 and liquid crystal display 3, and control button is including advancing the bed, going out of the bed, a key advances the bed, a key goes out of the bed, pilot lamp shift knob, and liquid crystal display 3 sets up in spiral CT frame model 10's preceding top for dynamic display motion information, including 0 position, bed business turn over direction and positional information etc..

As shown in fig. 3, the control button 4 is disposed in a control button area 21 on the front left side of the frame ring body 2, the liquid crystal display 3 is disposed in a display screen area 22 on the front top of the frame ring body 2, the control circuit is disposed in a control circuit placement area 23 in the frame ring body 2, and the ring-shaped light strip 5 is mounted on a center ring 24 on the inner wall of the frame ring body hole.

As shown in fig. 4, the circular light strip 5 comprises a plurality of uniformly distributed laser diodes 25. The laser diodes 25 are connected by a diode strip lead layer 26. The laser diode 25 is controlled to emit light of at least two colors, one color represents X-ray exposure, the other color represents a detector, the laser diode 25 is connected with a state control circuit, and the state control circuit is arranged in the engine base 1.

In a preferred embodiment, the X-ray exposure lamp is typically simulated by a laser diode illumination, and the detector is simulated by a laser diode illumination on a 150 degree ring. During scanning, the X-ray exposure lamp (one) and the detector lamp (a group of continuously lighted lamps) perform relative fixed rotary motion (essentially, the lamp strip performs rotary lamp lighting and lamp extinguishing control).

In a preferred embodiment, positioning lamps are further provided, and the positioning lamps are installed at the uppermost end and the left and right sides of the entrance of the spiral CT gantry model to determine the horizontal and vertical positions and the 0 position.

As shown in fig. 5, the motion control unit 30 includes a stepping motor 31, a screw guide rail 32, a movable sliding table 33, and a limit switch (not shown in the figure), the stepping motor 31 is driven by a single chip microcomputer controlled motor driver, the movable sliding table 33 connected to the screw guide rail 32 is fixed to the examination table board 7, the screw guide rail 32 is driven by the stepping motor 31, and the limit switch is disposed at two ends of the examination table board 7. When the movement reaches the limit, the motor stops working. The moving slide table 33 can control the moving direction, moving speed and moving distance of the bed panel.

The connection control circuit comprises a single-chip microcomputer control chip, a USB connection circuit and a control signal output, wherein the USB connection circuit is used for communicating with an upper computer, and the single-chip microcomputer control chip is used for receiving a control command of the upper computer (numerical simulation CT software) and translating the control command into a control command for checking the movement of the bed plate, the bulb tube, the detector and the positioning lamp and outputting the control command.

The specific control signal comprises that in a conventional scanning mode, under the conditions of receiving parameters such as the stepping distance, the scanning direction, the number of scanning layers and the like of the upper computer, the singlechip outputs the rotating speed, the stopping time and the rotating frequency to control the simulated laser diode to light up and light down; after the lamp-out value every time, the single chip outputs the moving direction, the moving times and the moving distance every time to the stepping motor to drive the bed panel to move. The laser diode and the bed panel are alternately operated.

Under the spiral scanning mode, receiving parameters such as the pitch, the scanning direction, the number of scanning layers and the like of an upper computer, and controlling the lighting and the light-out of the analog laser diode by the output rotation speed and the rotation times of the single chip microcomputer; meanwhile, the singlechip outputs the moving direction, the moving speed and the continuous moving distance to the stepping motor to drive the bed panel to move. The laser diode and the bed plate are operated simultaneously and continuously.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The spiral CT simulation model capable of being controlled by simulation software is characterized by comprising a spiral CT rack model and an examination bed model, wherein an annular lamp strip is arranged on the inner surface of a rack ring body of the spiral CT rack model, an examination bed board of the examination bed model is connected with a motion control part, and a connection control circuit is arranged in the spiral CT rack model.

2. The spiral CT simulation model capable of being controlled by simulation software of claim 1, wherein the motion control component comprises a stepping motor, a lead screw guide rail, a movable sliding table and a limit switch, the stepping motor is driven by a single chip microcomputer control motor driver, the movable sliding table connected on the lead screw guide rail is fixed with the examination bed board, the lead screw guide rail is driven by the stepping motor, and the limit switch is arranged at two ends of the examination bed board.

3. The software-controlled helical CT simulation model of claim 1, wherein said circular light strip is mounted on a right-center ring of the inner wall of the frame ring hole, said circular light strip comprising a plurality of uniformly distributed laser diodes.

4. The software-controlled helical CT simulation model of claim 3, wherein said laser diodes are controlled to emit light of at least two colors, one color representing X-ray exposure and one color representing detectors, said laser diodes being connected to a status control circuit.

5. The helical CT simulation model of claim 1, further comprising positioning lamps installed at the top and left and right sides of the entrance of the helical CT gantry model for determining the horizontal vertical position and the 0 position.

6. The spiral CT simulation model capable of being controlled by simulation software of claim 1, wherein the connection control circuit comprises a single chip microcomputer control chip, a USB connection circuit and a control signal output, the USB connection circuit is used for communicating with an upper computer, and the single chip microcomputer control chip is used for receiving control commands of the upper computer, translating the control commands into control commands for checking the movement of the bed board, the annular lamp strip and the positioning lamp and outputting the control commands.

7. The spiral CT simulation model capable of being controlled by simulation software of claim 1, further comprising control buttons and a liquid crystal display screen, wherein the control buttons are arranged on the spiral CT frame model and comprise bed entering and exiting buttons, a key bed entering button, a key bed exiting button and a positioning lamp switch button, and the liquid crystal display screen is arranged on the top of the front of the spiral CT frame model and is used for dynamically displaying motion information.