CN220558246U - Medical imaging system and detection bed thereof - Google Patents

Abstract

The embodiment of the application provides a medical imaging system and detect bed thereof, detect the bed and include bed board and control circuit, the bed board includes: a first laminate for placing an object to be inspected, a second laminate for supporting the first laminate, and a heating layer sandwiched between the first laminate and the second laminate; the control circuit is electrically connected with the heating layer and used for controlling the heating temperature of the heating layer, and heat generated by heating the heating layer is conducted to the first layer plate.

Description

Medical imaging system and detection bed thereof

Technical Field

The embodiment of the application relates to the technical field of medical equipment, in particular to a medical imaging system and a detection bed thereof.

Background

Currently, a horizontal medical imaging system is very popular, which comprises a detection bed for carrying a detected object. In the examination, the subject is lying on the examination bed in a supine position. For a common detection bed, especially in winter, a detected object can feel cold when contacting with a bed board, and uncomfortable feeling is generated.

Disclosure of Invention

In view of at least one of the above technical problems, embodiments of the present application provide a medical imaging system and a detection couch thereof.

According to an aspect of embodiments of the present application, there is provided a detection couch for a medical imaging system, the detection couch comprising a couch plate and control circuitry, the couch plate comprising:

a first laminate for placing an object to be inspected, a second laminate for supporting the first laminate, and a heating layer sandwiched between the first laminate and the second laminate;

the control circuit is electrically connected with the heating layer and used for controlling the heating temperature of the heating layer, and heat generated by heating the heating layer is conducted to the first layer plate.

Further, the heating layer and the first laminate are connected by a resin adhesive, and the heating layer and the second laminate are connected by a resin adhesive.

Further, the second laminate includes a slab-like foam and a carbon fiber composite surface encapsulating the foam.

Further, the heating layer comprises a conductive film made of high polymer materials, metal pole pieces on two sides of the conductive film and one or more temperature feedback sensors.

Further, the heating layer further comprises an over-temperature detection sensor.

Further, the heating layer further comprises an insulating protection layer outside the conductive film.

Further, the metal pole piece and the temperature feedback sensor are located in a non-imaging region of the detection bed.

Further, when the over-temperature detection sensor detects that the heating temperature of the heating layer exceeds a preset temperature, the control circuit controls to stop supplying power to the heating layer.

Further, the control circuit includes:

the sampling circuit is connected with the temperature feedback sensor and is used for acquiring a sampling value of the temperature fed back by the temperature feedback sensor;

the power supply circuit is connected with the metal pole piece and used for controlling the on and off of the metal pole piece power supply;

the driving circuit is connected with the power supply circuit and is used for generating a pulse width modulation signal so as to control the on and off of the power supply circuit;

and the controller is connected with the sampling circuit and the driving circuit and controls the driving circuit to generate the pulse width modulation signal according to the sampling value.

According to an aspect of embodiments of the present application, there is provided a medical imaging system, wherein the system comprises:

the test bed according to the previous aspect.

One of the beneficial effects of the embodiment of the application is that: by integrating the heating layer between the first layer plate and the second layer plate of the bed plate, the detected object can not feel cold when contacting the bed plate, and the original strength and bearing capacity of the bed plate can not be influenced.

Specific implementations of the embodiments of the present application are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the embodiments of the present application may be employed. It should be understood that the embodiments of the present application are not limited in scope thereby. The embodiments of the present application include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only examples of the present application, and that other embodiments may be obtained from these drawings without inventive work for a person of ordinary skill in the art. In the drawings:

FIG. 1 is a schematic illustration of a medical imaging system configuration of an embodiment of the present application;

FIG. 2 is a schematic view of a cross section of a bed plate A-A of the test bed according to the embodiment of the present application;

FIG. 3 is a schematic diagram of a heating layer according to an embodiment of the present application;

FIG. 4 is a schematic view of a cross-section of a heating layer A-A in accordance with an embodiment of the present application;

fig. 5 is a schematic diagram of the control circuit configuration according to the embodiment of the present application.

Detailed Description

The foregoing and other features of embodiments of the present application will become apparent from the following description, taken in conjunction with the accompanying drawings. In the specification and drawings, there have been specifically disclosed specific embodiments of the present application which are indicative of some of the ways in which the principles of the embodiments of the present application may be employed, it being understood that the present application is not limited to the described embodiments, but, on the contrary, the embodiments of the present application include all modifications, variations and equivalents falling within the scope of the appended claims.

In the embodiments of the present application, the terms "first," "second," and the like are used to distinguish between different elements from each other by reference, but do not denote a spatial arrangement or a temporal order of the elements, and the elements should not be limited by the terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprises," "comprising," "including," "having," and the like, are intended to reference the presence of stated features, elements, components, or groups of components, but do not preclude the presence or addition of one or more other features, elements, components, or groups of components.

In the embodiments of the present application, the singular forms "a," an, "and" the "include plural referents and should be construed broadly to mean" one "or" one type "and not limited to" one "or" another; furthermore, the term "comprising" is to be interpreted as including both the singular and the plural, unless the context clearly dictates otherwise. Furthermore, the term "according to" should be understood as "based at least in part on" the term "based on" should be understood as "based at least in part on" the term "unless the context clearly indicates otherwise. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, nor to direct or indirect connections.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments in combination with or instead of the features of the other embodiments. The term "comprises/comprising" when used herein refers to the presence of a feature, integer, step or component, but does not exclude the presence or addition of one or more other features, integers, steps or components.

The medical imaging systems described herein may be adapted for use in a variety of medical imaging modalities, including, but not limited to, X-ray imaging systems, computed Tomography (CT), magnetic resonance imaging (MRI, magnetic Resonance Imaging), C-arm imaging, positron emission tomography (PET, positron Emission Computed Tomography), single photon emission computed tomography (SPECT, single Photon Emission Computed Tomography), or any other suitable medical imaging.

By way of example, embodiments of the present application are described below in connection with an X-ray imaging system. Those skilled in the art will appreciate that embodiments of the present application may also be applicable to other medical imaging systems.

Fig. 1 is a medical imaging system 100 of an embodiment of the present application. As shown in fig. 1, the medical imaging system 100 includes a suspension device 110 disposed in a scanning room 101, a stand (stand) device 120, and a detection bed 130, and a control device 150 disposed within a control room 102. The suspension device 110 includes a longitudinal rail 111, a transverse rail 112, a telescopic cylinder 113, a sled 114, and a bulb assembly 115.

Although some embodiments of the present application are described based on an overhead X-ray imaging system, the embodiments of the present application are not so limited.

For convenience of description, in this application, the x-axis, the y-axis, and the z-axis are defined as an x-axis and a y-axis that are located in a horizontal plane and are perpendicular to each other, and the z-axis is perpendicular to the horizontal plane, specifically, a direction in which the longitudinal rail 111 is located is defined as an x-axis, a direction in which the lateral rail 112 is located is defined as a y-axis direction, an extension direction of the telescopic tube 113 is defined as a z-axis direction, and the z-axis direction is a vertical direction.

The longitudinal rail 111 and the transverse rail 112 are vertically arranged, wherein the longitudinal rail 111 is mounted on the ceiling and the transverse rail 112 is mounted on the longitudinal rail 111. Telescoping barrel 113 is used to carry bulb assembly 115.

The pulley 114 is disposed between the transverse guide rail 112 and the telescopic cylinder 113, and the pulley 114 may include a rotating shaft, a motor, a winding drum, and the like, and the motor can drive the winding drum to rotate around the rotating shaft, so as to drive the telescopic cylinder 113 to move along the z-axis and/or slide relative to the transverse guide rail. The sled 114 is capable of sliding relative to the cross rail 112, i.e., the sled 114 is capable of moving the telescoping tube 113 and/or the bulb assembly 115 in the y-axis direction. And the transverse guide rail 112 can slide relative to the longitudinal guide rail 111, so as to drive the telescopic cylinder 113 and/or the bulb assembly 115 to move along the x-axis direction.

The telescopic cylinder 113 comprises a plurality of cylinders with different inner diameters, and the cylinders can be sleeved in the cylinders on the telescopic cylinder from bottom to top in sequence to realize telescopic operation, and the telescopic cylinder 113 can be telescopic (or movable) in the vertical direction, namely, the telescopic cylinder 113 can drive the bulb assembly to move along the z-axis direction. The lower end of the telescopic cylinder 113 is further provided with a rotating part which can rotate the bulb assembly 115.

The bulb assembly 115 includes an X-ray tube that can generate X-rays and project the X-rays toward a desired region of interest ROI of a patient. In particular, the X-ray tube may be positioned adjacent to a beam limiter for aligning the X-rays to an intended region of interest of the patient. At least a portion of the X-rays may be attenuated by the patient and may be incident upon the detector 121/131.

The suspension apparatus 110 further includes a beam limiter 117, and the beam limiter 117 is generally mounted below the X-ray tube, and X-rays emitted from the X-ray tube are irradiated onto the subject through an opening of the beam limiter 117. The size of the opening of the beam limiter 117 determines the irradiation range of the X-rays, that is, the area size of the exposure Field of View (FOV). The position of the X-ray tube and beam limiter 117 in the lateral direction determines the position of the exposure field FOV on the subject. It is known that X-rays are harmful to the human body, and therefore it is necessary to control the X-rays so as to irradiate only the region to be examined, i.e., the region of interest (Region of Interest, ROI), of the object to be examined.

The suspension apparatus 110 further includes a bulb control apparatus (bulb) 116, and the bulb control apparatus 116 is mounted on the bulb assembly, and the bulb control apparatus 116 includes a display screen, control buttons, and other user interfaces for performing preparation work before photographing, such as patient selection, protocol selection, and positioning.

The movements of the suspension 110 include movements of the bulb assembly along the x, y and z axes, and rotations of the bulb assembly in the horizontal plane (with the axis of rotation parallel or coincident with the z axis) and in the vertical plane (with the axis of rotation parallel to the y axis), in which movements the respective components are typically rotated by motor-driven shafts to effect the respective movements or rotations, and the respective control components are generally mounted within the sled 114. The X-ray imaging unit further comprises a motion control unit (not shown in the figures) capable of controlling the above-mentioned movement of the suspension 110, and further, capable of receiving control signals to control the respective components to move accordingly.

Column assembly 120 includes a first detector assembly 121, column 122, and connection 123. The connection part 123 includes a support arm vertically connected to the height direction of the upright 122 and a rotating bracket mounted on the support arm, the first probe assembly 121 is mounted on the rotating bracket, the upright device 120 further includes a probe driving device disposed between the rotating bracket and the first probe assembly 121, and the first probe assembly 121 is further rotatable relative to the support arm to form an angle with the upright by being driven by the probe driving device to move in a direction parallel to the height direction of the upright 122 on a plane lifted by the rotating bracket. The first detector assembly 121 has a plate-like structure whose direction is changeable so as to make the X-ray incident surface vertical or horizontal according to the incident direction of the X-rays.

The second detector assembly 131 is included on the detection bed 130, and the selection or use of the first detector assembly 121 and the second detector assembly 131 can be determined based on the shooting position and/or the shooting protocol of the patient, and can also be determined based on the position of the detected object obtained by shooting with a camera, so as to perform shooting inspection of the prone position or the station position. Fig. 1 shows only one example of a column and a test bed, and it should be understood by those skilled in the art that any form or arrangement of columns and/or test beds may be selected and installed, and that the columns and/or test beds are not limiting to the overall solution of the present application. The plane of the detection bed 130 includes an imaging region and a non-imaging region, the imaging region is defined by a coverage or movable range of the second detector assembly 131, wherein the region of the detection bed corresponding to the coverage or movable range of the second detector assembly 131 is called an imaging region, and other regions except the imaging region are called non-imaging regions.

In some embodiments, the medical imaging system includes an imaging device 140 (e.g., a camera) by which the subject can be imaged to obtain a captured image containing the subject, such as a still optical image or a series of frame optical images in a dynamic real-time video stream, for auxiliary positioning and exposure settings, and so forth. The image pickup device may be mounted on a suspension device, for example, on a side of the beam limiter 117, etc., which is not limited in this embodiment. The camera 140 includes one or more cameras, such as digital cameras, analog cameras, etc., or depth cameras, infrared cameras, or ultraviolet cameras, etc., or 3D cameras, 3D scanners, etc., or Red Green Blue (RGB) sensors, RGB depth (RGB-D) sensors, or other devices that can capture color image data of a target object.

In some embodiments, the control device 150 may include a source controller and a detector controller. The source controller is used for commanding the X-ray source to emit X-rays for image exposure. The detector controller is used to select an appropriate detector among a plurality of detectors and coordinate control of various detector functions, for example, to automatically select a corresponding detector according to the position or posture of a detected object, or to perform various signal processing and filtering functions, in particular, initial adjustment of a dynamic range, interleaving of digital image data, and the like. In some embodiments, the control device may provide power and timing signals for controlling the operation of the X-ray source and detector.

In some embodiments, the control device may also be configured to reconstruct one or more desired images and/or determine useful diagnostic information corresponding to the patient using the digitized signals, wherein the control device may include one or more special purpose processors, graphics processing units, digital signal processors, microcomputers, microcontrollers, application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs), or other suitable processing devices.

Of course, the medical imaging system may also include other numbers or configurations or forms of control devices, e.g., the control devices may be local (e.g., co-located with one or more medical imaging systems 100, e.g., within the same facility and/or the same local network); in other implementations, the control device may be remote and therefore only accessible via a remote connection (e.g., via the internet or other available remote access technology). In particular implementations, the control device may also be configured in a cloud-like manner and may be accessed and/or used in a manner substantially similar to the manner in which other cloud-based systems are accessed and used.

The system 100 also includes a memory device (not shown) in which the processor can store the digitized signals. For example, the memory may include a hard disk drive, a floppy disk drive, an optical disk read/write drive, a digital versatile disk drive, a flash memory drive, and/or solid state memory. The memory may also be integrated with the processor to efficiently use the footprint and/or to meet desired imaging requirements.

The system 100 further comprises input means 160, which input means 160 may comprise some form of operator interface such as a keyboard, a mouse, voice activated control means, a touch screen (which may also be referred to as a display means as described below), a trackball or any other suitable input device by which an operator may input operation/control signals to the control means.

The system 100 further comprises a display device 151 (e.g. a touch screen or display screen), which display device 151 may be used to display a list of detected objects, a positioning or exposure setting of detected objects, an image of detected objects, etc. an operation interface.

The detection bed 130 is described in detail below.

An embodiment of the present application provides a detection couch for a medical imaging system, the detection couch 130 includes a couch plate 132 and a control circuit (not illustrated), fig. 2 is a schematic cross-sectional view of the couch plate A-A, and as shown in fig. 2, the couch plate 132 includes: a first laminate 201 for placing an object to be inspected, a second laminate 202 for supporting the first laminate 201, and a heating layer 203 sandwiched between the first laminate 201 and the second laminate 202; the control circuit is electrically connected to the heating layer 203 and is used for controlling the heating temperature of the heating layer 203, and the heat generated by heating the heating layer 203 is conducted to the first layer 201.

In some embodiments, the second plate 202 of the first plate 201 is a rectangular plate with a uniform thickness, the first plate 201 is used to support the object to be tested, for example, the object to be tested is lying on the first plate 201 in a supine position, the second plate 202 of the first plate 201 may be made of a material with low attenuation of X-rays, for example, the first plate 201 may be a friction-resistant fire-proof plate HPL, and the second plate 202 is made of a carbon fiber composite material, but the embodiment of the present application is not limited thereto. The thicknesses of the first layer plate and the second layer plate may be determined as needed, and the embodiment of the present application is not limited thereto.

In some embodiments, as shown in fig. 2, a heating layer 203 is integrated between a first laminate 201 and a second laminate 202, wherein the heating layer 203 and the first laminate 201 may be connected by a resin glue, and the heating layer 203 and the second laminate 202 may be connected by a resin glue. For example, in the assembly process, the heating layer 203 is first placed on the second layer 202, and a resin material is added between the heating layer 203 and the second layer 202, and the heating layer 203 is fixed on the second layer 202 through a high-temperature pressing process, then the first layer 201 is placed on the heating layer 203, and a resin material is added between the heating layer 203 and the first layer 201, and the first layer 201 is fixed on the heating layer 203 through a high-temperature pressing process. Through the mode of the resin connection, the manufacturing process can be simplified, and the improvement of the integrated heating layer can be more conveniently carried out on the structure of the existing bed board.

Because the heating layer 203 is integrated on the bed board, heat generated by the heating layer 203 can be directly conducted to the first layer board 201, so that a detected object can not feel cold when contacting the bed board, and the original strength and bearing capacity of the bed board can not be influenced.

In some embodiments, as shown in fig. 2, the second laminate 202 includes a slab-like foam 2021 and a carbon fiber composite surface 2022 encapsulating the foam. That is, a "shell" is wrapped around the rectangular plate-like foam 2021, and the shell is made of a carbon fiber composite material, i.e., the inner layer of the second layer plate 202 is made of a foam, and the outer layer is made of a carbon fiber composite material or the like. The second plate 202 has a suitable strength to provide stable support for the first plate (the object to be inspected). In addition, the foam 2021 may also serve as a heat insulating layer, reducing heat conducted to the interior space of the inspection bed when the heating layer 203 generates heat, reducing the influence on the imaging quality. However, the embodiment of the present application is not limited thereto, and for example, a fan (not shown) may be further disposed under the bed board, and when the heating layer generates heat, the fan is activated to reduce the heat conducted to the inner space of the detection bed, which is not illustrated here.

The structure of the heating layer will be described with reference to fig. 3.

Fig. 3 is a schematic diagram of the upper surface of the heating layer according to the embodiment of the present application, and as shown in fig. 3, the heating layer 203 includes a conductive film 31, and metal pole pieces 32 on two sides of the conductive film 31, and one or more temperature feedback sensors 33. The conductive film 31 is made of a polymer material which has low X-ray attenuation and can generate uniform heat when energized. When the high polymer material is electrified, the conductive film can be regarded as a resistor, the conversion from electric energy to heat energy can be realized, and far infrared radiation heat is transferred to the first layer plate, so that the heating of the first layer plate is realized. In addition, the thickness of the conductive film may be set to be less than 1mm, and thus, does not affect the detection bed height.

In some embodiments, the conductive film 31 is provided with metal pole pieces 32 (positive and negative electrodes, respectively) on both sides in the length direction (X direction), and the length of the metal pole pieces 32 is substantially the same as the length of the conductive film in the X direction. Since the positive and negative electrodes are provided in the longitudinal direction, the conduction path is minimized. The metal pole piece 32 is in close contact with (for example, integrally formed with) the conductive film 31 to realize conduction of the conductive film by the metal pole piece, the metal pole piece 32 is connected with a power supply by a power line, and when the metal pole piece is connected with the power supply and a power circuit is conducted, the conductive film is electrified, and the power supply can be a direct current power supply from a detection bed, or a battery installed in the detection bed or a battery integrated in a heating layer, for example, the battery can also be a rechargeable battery, and the embodiment of the application is not limited thereto.

In some embodiments, one temperature feedback sensor 33 may be disposed on both sides of the length direction (X direction) of the conductive film 31, on the inner side of the metal pole piece, or a plurality of temperature feedback sensors 33 may be uniformly disposed, and the temperature feedback sensors 33 may feedback the real-time temperature of the conductive film 31 to the control circuit, where the temperature feedback sensors 33 and the control circuit may communicate in a wired or wireless manner, and the embodiment of the present application is not limited thereto.

In some embodiments, conductive film 31 covers the imaging area, but metal pole piece 32 and temperature feedback sensor 33 are located in the non-imaging area, whereby the impact of the metal pole piece and sensor on the imaging quality can be avoided. As shown in fig. 3, the conductive film 31 may be approximately the size of the imaging area, but smaller than the size of the upper surface of the couch plate, and the metal pole piece and temperature feedback sensor are also located in the couch plate area, but outside the imaging area. However, the embodiment of the present application is not limited thereto, and for example, the size of the conductive film 31 may be greater than or equal to the size of the upper surface of the bed plate, and the metal pole piece and the temperature feedback sensor are not located in the region of the bed plate, for example, the metal pole piece and the temperature feedback sensor are located on two sides (side in the X direction) of the bed plate or on two sides (side in the X direction) of the bottom surface of the bed plate, respectively, which is not exemplified here.

In some embodiments, as shown in fig. 3, the heating layer 203 further includes an over-temperature detection sensor 34, where the over-temperature detection sensor 34 and the control circuit may communicate by a wired or wireless manner, and the embodiment of the present application is not limited thereto. The control circuit may perform overheat protection when the overheat detection sensor 34 detects that the heating temperature of the heating layer exceeds a preset temperature, which will be described later. The over-temperature detection sensor 34 is also located in a non-imaging area, and the arrangement of the over-temperature detection sensor 34 is similar to that of the temperature feedback sensor 33, and will not be repeated here.

In some embodiments, the heating layer further includes an insulating protection layer 35 outside the conductive film 31, and fig. 4 is a schematic cross-sectional view of the heating layer A-A in the embodiment of the application, as shown in fig. 4, where the conductive film 31, the metal pole piece 32, the temperature feedback sensor 33, and the over-temperature detection sensor 34 are disposed inside the insulating protection layer 35. The insulating protective layer plays a role in electric insulation, and avoids the influence on other laminates and imaging quality. The insulating protective layer is made of an insulating material, which is not limited in this embodiment.

The control circuit is explained below.

Fig. 5 is a schematic diagram of a control circuit according to an embodiment of the present application, and as shown in fig. 5, the control circuit includes:

a sampling circuit 51 connected to the temperature feedback sensor for acquiring a sampling value of the temperature fed back by the temperature feedback sensor;

the power supply circuit 52 is connected with the metal pole piece and used for controlling the on and off of the power supply of the metal pole piece;

a driving circuit 53 connected to the power supply circuit for generating a pulse width modulation signal to control on and off of the power supply circuit;

and a controller 54 connected to the sampling circuit and the driving circuit, and controlling the driving circuit to generate the pulse width modulation signal according to the sampling value.

In some embodiments, the temperature feedback sensor feeds back the temperature detected in real time to the sampling circuit 51, the sampling circuit 51 uses analog-to-digital sampling to obtain a sampling value of the temperature fed back by the temperature feedback sensor, and transmits the sampling value to the controller 54, and the controller 54 controls the driving circuit to generate a pulse width modulation signal, wherein the duty ratio of the pulse width modulation signal can be adjusted according to the sampling value of the temperature so as to control the average value of one period of the pulse; the power supply circuit 52 may include a switching device such as an insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT) or a silicon carbide Metal Oxide Semiconductor Field Effect Transistor (MOSFET) or the like; the pulse width modulation signal generated by the driving circuit 53 controls the on time (off time) of the switching device in the power circuit 52, that is, controls the on and off of the power circuit, when the power circuit is on, the power supply supplies power to the metal pole piece, and when the power circuit is off, the power supply does not supply power to the metal pole piece, and the conductive film is not on. Thereby, the temperature of the heating layer is controlled and regulated by the temperature feedback sensor.

In some embodiments, the controller 54 may generate the pwm signal based on a PID algorithm, and may refer to the related art specifically, but the embodiments of the present application are not limited thereto, for example, temperature control may also be performed based on fuzzy control, I/O control, thermistor feedback, and the like, and may refer to the related art specifically, which is not described herein.

In some embodiments, the control circuit controls to stop the power supply to the heating layer when the over-temperature detection sensor detects that the heating temperature of the heating layer exceeds a preset temperature. For example, the overheat detection sensor communicates with the controller 54, and when the overheat detection sensor detects that the heating temperature of the heating layer exceeds the preset temperature, the controller 54 cuts off the pulse width modulation signal, and turns off the switching device in the power supply circuit 52, thereby stopping the power supply to the heating layer and performing overheat protection.

In some embodiments, the controller 54 may also be connected to an operation panel, which may be a physical operation panel provided on the detection bed or elsewhere in the medical imaging system or a virtual operation panel provided on a graphical user interface of the medical imaging system, where the operation panel includes a temperature setting key, a switch key, a thermostatic control key, etc., where the key is a physical key or a virtual key, the temperature setting key may be used to set a target temperature for heating the heating layer, the switch key is used to start heating the heating layer or stop heating the heating layer, and the thermostatic control key is used to control the heating layer to maintain a constant temperature. The keys on the operation panel are in communication (wired or wireless) with the controller 54, and by triggering the keys of the operation panel, an operation signal is generated and sent to the controller 54, and the controller 54 performs corresponding control according to the received operation signal, which is not described herein.

In some embodiments, the operation panel may further include a display window, where the display window may display the current heating temperature, which is not described herein.

In some embodiments, in addition to using a switch key on the operation panel to control, the controller may be automatically triggered to start heating the heating layer or stop heating the heating layer when some conditions are met, for example, when the load-bearing sensor of the detection bed (in communication with the controller) detects that the detected object is carried on the bed board, the controller may start heating the heating layer when the load-bearing sensor of the detection bed detects that the detected object leaves the bed board, the controller may stop heating the heating layer, or the like, or the controller may start heating the heating layer every day for a preset period of time (detected by a timer, which is in communication with the controller, for example, 8 to 18 points every day), or the controller may start heating the heating layer every year for a preset period of time (detected by a timer, which is in communication with the controller every year, for example, in autumn and winter), or the controller may start heating the heating layer when the temperature feedback sensor detects that the temperature is lower than a threshold value, which will not be repeated here.

In some embodiments, the functions of the control circuit may be integrated on a motherboard (motherboard controller) of the medical imaging system or a detection bed motherboard (motherboard controller), or may be set independently of the motherboard (motherboard controller), for example, a chip circuit configured to be connected to the motherboard controller, etc., which is not limited in this embodiment, and the functions of the above-described operation panel are integrated in the motherboard (motherboard controller) of the medical imaging system or the detection bed motherboard (motherboard controller), or integrated in the control circuit, and connected to the controller 54.

In some embodiments, the test bed 130 further comprises, below the deck: a detector housing (not shown, for example, housing the second detector assembly 131) is slidably disposed below the couch 132 such that the subject region of interest is disposed above the detector (for example, the second detector assembly 131). The detection bed 130 may further include a foot pedal device 133, a height adjusting device 134, etc., and reference is made to the related art for details, which will not be repeated herein.

According to the embodiment, the heating layer is integrated between the first layer plate and the second layer plate of the bed plate, so that a detected object can not feel cold when contacting the bed plate, and the original strength and bearing capacity of the bed plate can not be influenced.

In addition, the heating layer is connected and fixed through resin, so that the manufacturing process can be simplified, and the improvement of the integrated heating layer can be more conveniently carried out on the structure of the existing bed board.

In addition, the foam in the second layer plate can be used as a heat insulation layer, so that heat conducted to the inner space of the detection bed is reduced when the heating layer generates heat, and the influence on imaging quality is reduced.

In addition, the conductive film of the heating layer is made of a high polymer material, and when the high polymer material is electrified, uniform heat can be generated in an imaging area of the detection bed, and the attenuation of X-rays is low, so that the generation of artifacts can be avoided, and the imaging quality is not affected.

In addition, the metal pole piece and the sensor are positioned in the non-imaging area, so that the influence of the metal pole piece and the sensor on imaging quality can be avoided.

In addition, by providing an overheat detection sensor, the control circuit can perform overheat protection when detecting that the heating temperature of the heating layer exceeds a preset temperature.

In addition, through setting up insulating protection layer in the conducting film outside, can play the effect of electric insulation, avoid other plywoods and imaging quality's influence.

The above embodiments are merely illustrative of the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications may be made on the basis of the above embodiments. For example, each of the above embodiments may be used alone, or one or more of the above embodiments may be combined.

The present application has been described in connection with specific embodiments, but it should be apparent to those skilled in the art that these descriptions are intended to be illustrative and not limiting. Various modifications and alterations of this application may occur to those skilled in the art in light of the spirit and principles of this application, and are to be seen as within the scope of this application.

Preferred embodiments of the present application are described above with reference to the accompanying drawings. The many features and advantages of the embodiments are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the embodiments which fall within the true spirit and scope thereof. Further, since numerous modifications and variations will readily occur to those skilled in the art, it is not desired to limit the embodiments of the present application to the exact construction and operation illustrated and described, and accordingly, all suitable modifications, variations, and equivalents that fall within the scope thereof may be resorted to.

Claims (10)

1. A test bed for a medical imaging system, the test bed comprising a couch plate and control circuitry, the couch plate comprising:

a first laminate for placing an object to be inspected, a second laminate for supporting the first laminate, and a heating layer sandwiched between the first laminate and the second laminate;

the control circuit is electrically connected with the heating layer and used for controlling the heating temperature of the heating layer, and heat generated by heating the heating layer is conducted to the first layer plate.

2. The bed of claim 1, wherein the heating layer and the first laminate are connected by a resin glue and the heating layer and the second laminate are connected by a resin glue.

3. The test bed of claim 1, wherein the second laminate includes a slab-like foam and a carbon fiber composite surface encapsulating the foam.

4. The bed according to claim 1, wherein the heating layer comprises a conductive film made of a polymer material, metal pole pieces on both sides of the conductive film, and one or more temperature feedback sensors.

5. The test bed of claim 4, wherein the heating layer further comprises an over temperature detection sensor.

6. The test bed of claim 4, wherein the heating layer further comprises an insulating protective layer outside of the conductive film.

7. The couch of claim 4 wherein said metal pole piece and said temperature feedback sensor are located in a non-imaging region of said couch.

8. The bed according to claim 5, wherein the control circuit controls the stopping of the power supply to the heating layer when the overheat detection sensor detects that the heating temperature of the heating layer exceeds a preset temperature.

9. The test bed of claim 4, wherein the control circuit comprises:

the sampling circuit is connected with the temperature feedback sensor and is used for acquiring a sampling value of the temperature fed back by the temperature feedback sensor;

the power supply circuit is connected with the metal pole piece and used for controlling the on and off of the metal pole piece power supply;

the driving circuit is connected with the power supply circuit and is used for generating a pulse width modulation signal so as to control the on and off of the power supply circuit;

and the controller is connected with the sampling circuit and the driving circuit and controls the driving circuit to generate the pulse width modulation signal according to the sampling value.

10. A medical imaging system, the system comprising:

the test bed of any one of claims 1 to 9.