CN219501026U - Detector assembly, column device and X-ray imaging system - Google Patents

Abstract

The utility model provides a detector assembly, a column device and an X-ray imaging system. The detector assembly is installed on the stand of X-ray imaging system, and the detector assembly includes the detector and holds the box, and the detector can receive X-ray, and the detector holds the box and can hold the detector, and the detector holds the box and includes the backshell, and the backshell can be fixed on the stand, and the inboard of backshell is provided with many strengthening ribs in order to support the detector.

Description

Detector assembly, column device and X-ray imaging system

Technical Field

The present utility model relates to medical imaging technology, and more particularly to a detector assembly, a column arrangement and an X-ray imaging system.

Background

In an X-ray imaging system, radiation from an X-ray source is directed to a subject, typically a patient in a medical diagnostic application. A portion of the radiation passes through the object under examination and impinges on a detector which is divided into a matrix of discrete elements, e.g. pixels. The detector elements are read out to generate an output signal based on the amount or intensity of radiation impinging each pixel area. The signals may then be processed to generate a medical image that may be displayed for viewing, which may be displayed in a display device of an X-ray imaging system.

In the process of performing X-ray imaging, there are two kinds of lying position photographing, in which a subject to be detected is generally laid on an inspection bed, and a detector device is installed under a bed panel of the inspection bed for receiving X-rays, and standing position photographing, in which the subject to be detected is generally standing on a front side of a column on which the detector device is installed for receiving X-rays.

For post-mounted detector assemblies, a metal frame is typically mounted within the plastic housing, with the tray and/or detector panel mounted on the metal frame, which serves to support the internal components and modules of the detector assembly (e.g., tray, detector, rail, etc.), however, the metal frame not only adds weight to the overall detector assembly, but also increases cost.

Disclosure of Invention

The utility model provides a detector assembly, a column device and an X-ray imaging system.

Exemplary embodiments of the present utility model provide a detector assembly. The detector assembly is installed on the stand of the X-ray imaging system, the detector assembly comprises a detector and a detector accommodating box, the detector can receive X-rays, the detector accommodating box can accommodate the detector, the detector accommodating box comprises a rear shell, the rear shell can be fixed on the stand, and a plurality of reinforcing ribs are arranged on the inner side of the rear shell to support the detector.

Exemplary embodiments of the present utility model provide a column apparatus. The stand device includes the stand, and detector subassembly and connecting portion, the detector subassembly passes through connecting portion install on the stand, the detector subassembly includes detector and detector accommodation box, the detector can receive X ray, the detector accommodation box can hold the detector, the detector accommodation box includes the backshell, the backshell can be fixed on the stand, just the inboard of backshell is provided with many strengthening ribs in order to support the detector.

Exemplary embodiments of the present utility model provide an X-ray imaging system. The X-ray imaging system comprises a stand column, the detector assembly is installed on the stand column, the detector assembly comprises a detector and a detector accommodating box, the detector can receive X-rays, the detector accommodating box can accommodate the detector, the detector accommodating box comprises a rear shell, the rear shell can be fixed on the stand column, and a plurality of reinforcing ribs are arranged on the inner side of the rear shell so as to support the detector.

Other features and aspects will become apparent from the following detailed description, the accompanying drawings, and the claims.

Drawings

The utility model may be better understood by describing exemplary embodiments thereof in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic diagram of an X-ray imaging system in accordance with some embodiments of the utility model;

FIG. 2 is a schematic view of a detector assembly in the X-ray imaging system shown in FIG. 1;

FIG. 3 is a cross-sectional view of the detector assembly shown in FIG. 2 in a tray-out condition;

FIG. 4 is a cross-sectional view of the detector assembly shown in FIG. 2 in a tray removal in-state;

FIG. 5 is a schematic view of a rear housing in the detector assembly shown in FIG. 3;

FIG. 6 is a schematic view of a third spacing unit of some embodiments of the detector assembly shown in FIG. 3;

FIG. 7 is an enlarged view of a portion A of the detector assembly of FIG. 3;

FIG. 8 is an enlarged view of a portion B of the detector assembly of FIG. 3; and

fig. 9 is an enlarged view of a portion B' of the detector assembly shown in fig. 4.

Detailed Description

In the following, specific embodiments of the present utility model will be described, and it should be noted that in the course of the detailed description of these embodiments, it is not possible in the present specification to describe all features of an actual embodiment in detail for the sake of brevity. It should be appreciated that in the actual implementation of any of the implementations, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another. Moreover, it should be appreciated that while such a development effort might be complex and lengthy, it would nevertheless be a routine undertaking of design, fabrication, or manufacture for those of ordinary skill having the benefit of this disclosure, and thus should not be construed as having the benefit of this disclosure.

Unless defined otherwise, technical or scientific terms used in the claims and specification should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. The terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are immediately preceding the word "comprising" or "comprising", are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, nor to direct or indirect connections.

Fig. 1 illustrates an X-ray imaging system 100 according to some embodiments of the utility model. As shown in fig. 1, the X-ray imaging system 100 includes a suspension device 110, a column (stand) device 120, and a couch device 130. 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.

For convenience of description, in the present utility model, the x-axis, the y-axis, and the z-axis are defined as being in a horizontal plane and perpendicular to each other, and the z-axis is perpendicular to the horizontal plane, specifically, the direction in which the longitudinal rail 111 is located is defined as the x-axis, the direction in which the lateral rail 112 is located is defined as the y-axis direction, the extension direction of the telescopic tube 113 is defined as the z-axis direction, and the z-axis direction is the 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 bulb controller (bulb) 116, and the bulb controller 116 is mounted on the bulb assembly, and the bulb controller 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 detector assembly 121, a column 122, and a connection 123. The connection part 123 includes a support arm vertically connected to the height direction of the upright 122 and a rotation bracket mounted on the support arm, the probe assembly 121 is mounted on the rotation bracket, the upright device 120 further includes a probe driving device disposed between the rotation bracket and the probe assembly 121, and the probe assembly 121 can further rotate relative to the support arm to form a certain angle with the upright under the driving of the probe driving device on the plane lifted by the rotation bracket along the direction parallel to the height direction of the upright 122. The 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 device 130, and the selection or use of the 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, or can 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 standing 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 utility model.

The X-ray imaging system further comprises a control device (not shown) which may be a main controller located in the control room, a bulb controller mounted on the suspension device, a movable or portable controller or any combination of the above. The control means may comprise 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 X-ray 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 of the X-ray 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.

In one embodiment, the X-ray imaging system 100 further includes an operator workstation that allows a user to receive and evaluate the reconstructed image, as well as to input control instructions (operational signals or control signals). The operator workstation may include a user interface (or user input device) such as some form of operator interface such as a keyboard, mouse, voice activated controller, or any other suitable input device through which an operator may input operating/control signals to the control apparatus.

Fig. 2 shows a schematic view of a detector assembly 200 in the X-ray imaging system shown in fig. 1, fig. 3 is a cross-sectional view of the detector assembly shown in fig. 2 in a tray-out state, and fig. 4 is a cross-sectional view of the detector assembly shown in fig. 2 in a tray-in state. As shown in fig. 2 to 4, the detector assembly 200 includes a detector 210 and a detector housing case 220, the detector 210 is capable of receiving X-rays, the detector housing case 220 is capable of housing the detector 210, the detector housing case 220 includes a rear case 221, the rear case 221 is capable of being fixed on a column, and the inside of the rear case 221 is provided with a plurality of reinforcing ribs to support the detector 210 and the entire detector housing case.

The detector 210 includes a detector panel array including a pixel array of light sensing photodiodes and switching thin film Field Effect Transistors (FETs) that convert photons into electrical signals. The scintillator material deposited over the photodiode and pixel array of the FET converts incident X-ray radiation photons received on the surface of the scintillator material into lower energy photons. As mentioned above, the photodiode and pixel array of FETs convert photons into electrical signals. Alternatively, the detector panel array may directly convert the X-ray photons into electrical signals. These electrical signals are converted into image data by a detector panel array interface (which provides digital signals) to a computing device and reconstruct a medical image of the object under examination. In some embodiments, detector 210 may be configured to convert incident X-rays into electrical signals using light conversion, direct conversion, and/or any other suitable detection technique. In some embodiments, probe 210 includes a wireless communication interface for wirelessly communicating with a communication link and a wired communication interface for wirelessly and/or wiredly communicating with a control subsystem, wherein the wireless communication interface may utilize any suitable wireless communication protocol, such as an Ultra Wideband (UWB) communication standard, a bluetooth communication standard, or any IEEE 802.11 communication standard.

The detector 210 may also be configured to transmit unprocessed or partially processed image data to a workstation or portable detector control device via a wired or wireless connection or to transmit processed X-ray images to a printer to generate copies of the images. The portable detector control device may include a Personal Digital Assistant (PDA), a palm top computer, a laptop computer, a smart phone, a tablet computer such as an ipad (tm), or any suitable general purpose or special purpose portable interface device. The portable detector control device is configured to be held by a user and to communicate wirelessly with the detector 210.

The detector housing case 220 has a housing space formed by a front case, a rear case, and side walls, and has an opening opened on one side for loading and unloading the detector. In some embodiments, the opening is located at a side of the detector-receiving box. In other embodiments, the opening may be located at the top of the detector-receiving case, and in particular, the position or orientation of the opening is not limited to that described above or shown in the drawings, as long as the installation or removal of the detector is facilitated. Although the above-described accommodation space is constituted by the front case, the rear case, and the side walls, it will be understood by those skilled in the art that the detector accommodation box may be integrally formed.

In some embodiments, the prober assembly 200 further includes a tray 230 having a plate-like structure comprising a first side 231, a second side 232, a top 233, and a bottom 234, the first side 231 of the tray being coupled to the back housing 221 and movable relative to the back housing 221 to move the prober 210 into and out of the prober receiving pocket 220. In particular, the first side 231 of the tray and the rear housing 221 can be connected in any suitable manner.

In particular, the tray 230 is used to support and secure the prober 210, and the size of the tray 230 is greater than the size of the prober panel, the prober 210 is mounted adjacent to a first side 231 of the tray, at least a portion of the tray surface adjacent to a second side 232 is free of probers, and the second side 232 of the tray is further mounted with a handle operable to move the tray 230 into or out of the prober receiving pocket 220. In some non-limiting embodiments, the handle is mounted on the other side opposite the surface for holding the probe (i.e., the side in contact with the rear housing).

In some embodiments, detector assembly 200 further includes rail 240, rail 240 is mounted on rear housing 221, and tray 230 is mounted with respect to rail 240. Specifically, the detector assembly 200 includes two rails 240, the two rails 240 are mounted on the rear housing 221 at a distance and in parallel, and the rear surface of the tray is mounted with rail grooves matched with the rails 240, and the tray moves relative to the rear housing through the rail grooves and rail clamping on the rear housing. In particular, the arrangement between the tray 230 and the detector housing box 220 is similar to that of a drawer, and the tray 230 can be put into or taken out of the detector housing box 220 like a drawer. The user enables the tray 230 to move in and out of the detector-containing box 220 along the guide rails by operating a handle provided at the second side 232 of the tray.

Fig. 5 shows a schematic view of the back shell 221 in the detector assembly shown in fig. 3. As shown in fig. 5, the rear case 221 is provided with a first set of reinforcing ribs 225, and the first set of reinforcing ribs 225 are reinforcing ribs symmetrically provided on both upper and lower sides of the rear case and are used for mounting the guide rail. Since the guide rail needs to be connected to the pallet and the pallet is used for placing the detector, the force to be borne by this position of the rear shell is relatively large and therefore the first set of reinforcing bars are arranged relatively densely for supporting the guide rail, the pallet and/or the detector.

In some non-limiting embodiments, the guide rail is fixed between at least two of the first set of reinforcing ribs, that is, reinforcing ribs may be provided along both sides of the length direction of the guide rail (or the moving direction of the tray), respectively, or reinforcing ribs may be provided around both sides of the guide rail. Specifically, the above description is not limited to only installing the reinforcing ribs on two sides of the guide rail, but also may be to install the reinforcing ribs on two sides, and install some shorter reinforcing ribs on the bottom of the guide rail, that is, the bottom of the guide rail is not necessarily in direct contact with the rear shell, but is also installed on a part of the reinforcing ribs. By confining the guide rail between the reinforcing ribs, the guide rail can be made more stable to further improve the rigidity of the detector accommodating box.

The rear case 221 is provided with a second set of ribs 226, and the second set of ribs 226 are used for mounting devices such as a support frame 251 of the ionization chamber, a preamplifier 252 of the ionization chamber, a charging interface 253 of the detector, and the like.

In some embodiments, the rear shell 221 is integrally formed with the plurality of ribs by injection molding. In some non-limiting embodiments, the rear housing is made of plastic, and by adding a plurality of reinforcing ribs into the rear housing, the detector accommodating box is attractive and has a supporting effect, and a metal frame is not needed to be arranged in the accommodating box to support the detector and other devices. In some non-limiting embodiments, the arrangement or alignment of the ribs can be set according to the stress conditions of other devices in the receiving space, for example, at the mounting position of the guide rail, the force to be borne is greater, and thus the denser the arrangement of the ribs.

The center of the rear housing 221 has an opening 223, the opening 223 is used for connecting with a rotating bracket on the upright post, and a third group of reinforcing ribs 227 are arranged around the opening of the rear housing for reinforcing the connecting part of the rear housing and the upright post, so as to support the whole detector assembly. In some non-limiting embodiments, the sides of the rear housing 221 further include a recess 222 in the direction of the opening of the detector receiving box and in the same direction as the handle provided on the rear surface of the tray for a user to manipulate the tray through the handle to move out of or into the tray.

In some embodiments, a plurality of heat dissipating through holes are provided in the rear housing that are capable of dissipating heat from devices (e.g., probes) within the probe containment cassette.

In some embodiments, the detector assembly is not limited to include the above-mentioned devices, but may include any other device, such as a transmission device, etc., including at least two sets of synchronizing units composed of a plurality of synchronizing wheel boxes and a synchronizing belt that moves synchronously with the synchronizing wheels.

Referring back to fig. 3, in some embodiments, a first set of limiting devices 260 for fixing the detector is mounted on the tray 230, the first set of limiting devices 260 includes a first limiting unit 261 and a second limiting unit 262 mounted on the bottom 234 of the tray, and at least one third limiting unit 263 for fixing the side of the detector, and the first limiting unit 261 and the second limiting unit 262 are L-shaped stoppers and have grooves matched with the detector 210. Specifically, form L type recess between L type dog and the tray, this recess can be used for installing the detector, and the recess periphery still has the flange, and the flange can effectively fix the position of detector.

In some embodiments, the third limit unit is an I-block and has a groove that mates with the detector. An I-shaped groove is formed between the I-shaped stop block and the tray, and can be used for fixing the side edge of the detector, so that the detector is prevented from tilting forwards or turning right in the movement process of the tray.

Specifically, a first limiting unit 261, a second limiting unit 262, and at least one third limiting unit 263 are mounted on the tray 230 and arranged around the detector, the first limiting unit is mounted at the lower left corner of the tray, the second limiting unit is mounted at the lower right corner of the tray, and the third limiting unit is mounted at the top of the tray near the second side. In the process of installing the detector, the bottom edge of the detector is first inserted into the grooves of the first limit unit 261 and the second limit unit 262, then the side edge of the detector is installed into the groove of the third limit unit 263, the position of the detector is fixed, and the detector is not easy to incline outwards or turn outwards due to the existence of the blocking edge of the limit unit.

In other embodiments, the third spacing unit is an elastic spacing assembly with springs that can be compressed to secure the probe. Fig. 6 shows a schematic view of the elastic limit assembly 300, as shown in fig. 6, the elastic limit assembly 300 includes a spring 310 capable of being compressed to fix the probe 210, in particular, the elastic limit assembly 300 includes a base 320, a slider 330 and a pressing block 340, the base 320 is mounted on the tray 230, the spring 310 is mounted on the base 320, the slider 330 is connected with the spring 310, one end of the pressing block 340 is used to cooperate with the probe 210, the other end is connected with the slider 330, and the pressing block 340 is capable of driving the slider 330 to compress the spring 310 when the probe 210 is mounted.

Specifically, the base 320 is mounted on the tray 230, and the base 320 includes a hollow cavity in which the spring 310 is disposed, and the slider 330 is disposed in the hollow cavity and fixedly mounted with the spring, and the slider 330 can move in the hollow cavity to press or release the spring. The pressing block 340 includes a base portion and a protruding portion, the base portion is a cuboid or a cube, the protruding portion extends along a side edge of the base portion, a clamping surface is formed between one side of the protrusion and a part of the side edge of the base portion, and the surface can be matched with the detector and is used for fixing the detector. The other surface of the pressing block opposite to the surface with the convex part is fixed with the sliding block.

Specifically, when the spring 310 is in a normal state, the clamping surface of the pressing block slightly exceeds the surface of the detector, that is, the detector presses the pressing block under the action of a certain external force to be in contact with the clamping surface, and when the pressing block is pressed, the sliding block is driven to press the spring, the spring is compressed, but due to the existence of the detector, the spring is still in a compressed state, and meanwhile, a certain pressure is applied to the detector to fix the detector.

In some embodiments, the first set of limiting devices 260 includes a plurality of third limiting units, specifically, two third limiting units, respectively mounted on the first side and the second side of the tray to fix opposite sides of the detector.

Through the at least three spacing units of installation, on the one hand, can fix the position of detector on the tray, make things convenient for the loading in and taking out of detector, on the other hand, at the in-process that the tray removed, the effectual detector of avoiding leans forward or drops.

Fig. 7 shows a partially enlarged view of the portion a shown in fig. 3, and fig. 8 shows a partially enlarged view of the portion B shown in fig. 3. As shown in fig. 3 and 7-8, a second set of limiting means 270 for limiting the tray 230 is provided between the connection portion of the tray 230 and the rear case 221. Specifically, the first side 231 of the tray 230 is connected to the rear case, and thus, the connection portion between the tray 230 and the rear case 221 is a connection portion between the first side of the tray and the rear case, the connection portion includes a first end and a second end, the second set of limiting devices 270 includes a limiting block 271 mounted at the first end and a fixing assembly 272 mounted at the second end, the limiting block 271 can limit a moving distance of the tray relative to the detector receiving box, and the fixing assembly 272 can fix the tray.

Specifically, as shown in the enlarged view of the portion a in fig. 7, a first end of the first side 231 of the tray is provided with a first L-shaped hook 401, a second L-shaped hook 402 engaged with the first L-shaped hook 401 is also provided at the first end of the first side of the rear case, the first L-shaped hook 401 is disposed opposite to the second L-shaped hook 402, and a stopper 271 is disposed therebetween, the stopper 271 is mounted on the first L-shaped hook 401, and when the tray is being moved out of the detector accommodating box, the stopper 271 can limit the maximum movement distance of the tray, for example, when the tray is being moved out, the tray cannot move any further when the second L-shaped hook 402 reaches the position of the stopper 271, i.e., it can be known that the tray has reached the maximum movement distance, and the tray has been moved out of the detector accommodating box.

Specifically, as shown in the enlarged view of the portion B in fig. 8, the fixing member 272 includes an elastic bead seat 421, an elastic bead 422 and a blocking piece 423, the elastic bead seat 421 is mounted on the rear case 221, the elastic bead seat 421 includes an accommodating space with an opening, the elastic bead 422 is disposed in the accommodating space, at least a portion of the elastic bead extends beyond the opening, the blocking piece 423 is mounted at an end of the tray, and the blocking piece 423 includes a protrusion, and the protrusion can be mated with the elastic bead.

Specifically, the second end of the first side of the rear housing is provided with an elastic bead seat 421, the elastic bead seat 421 is mainly used for accommodating an elastic bead 422, the diameter of the opening of the elastic bead seat 421 is smaller than that of the elastic bead, when no external force acts on the elastic bead seat 421, at least one part of the elastic bead is accommodated in the elastic bead seat 421, at least another part of the elastic bead exceeds the elastic bead seat 421, and under the action of the external force, the elastic bead 422 can be compressed, that is, the volume of the part of the elastic bead accommodated in the elastic bead seat 421 increases.

The second end of the first side 231 of the tray is provided with a blocking piece 423, the blocking piece 423 is provided with a protrusion, the protrusion is composed of a first inclined plane and a second inclined plane, wherein the second inclined plane is close to the tray, the first inclined plane is far away from the tray compared with the first inclined plane, and the second inclined plane is slower than the first inclined plane in inclination.

In the process that the tray moves out of the detector accommodating box, when the tray is about to move out of the detector accommodating box completely, the second inclined surface of the baffle plate is slowly close to the elastic bead, when the bulge reaches the position of the elastic bead 422, the bulge can apply certain pressure to the elastic bead 422, and at the moment, under the limit of the limit block 271, the bulge and/or the first inclined surface are matched with the elastic bead, so that the position of the tray relative to the rear shell is positioned.

When a user needs to move the tray into the detector accommodating box, the tray can be moved into the detector accommodating box again under the action of external force and overcomes the resistance caused by the fact that the elastic beads are extruded by the first inclined plane. An external force, for example, 30N is applied to the tray so that the shutter 423 can be moved away from the elastic bead 422. Through setting up the different first inclined plane and the second inclined plane of inclined plane for resistance when moving in is obviously big than the resistance that pulls out, can play better location effect.

Fig. 9 shows a partial enlarged view of the portion B' shown in fig. 4. As shown in fig. 4 and 9, a third set of limiting means 280 is provided between the bottom 234 of the tray and the rear housing. The third set of limiting devices 280 includes a second limiting block 281 and a fixed assembly 282.

Specifically, a first end (i.e., a second end of the first side) of the bottom 234 of the tray is provided with a third L-shaped hook, a second end of the second side of the rear case is also provided with a fourth L-shaped hook that mates with the third L-shaped hook, the third L-shaped hook is disposed opposite to the fourth L-shaped hook, and a second stopper 281 is disposed therebetween, the second stopper 281 is mounted on the fourth L-shaped hook, and when the tray is moved into the detector accommodating box, the stopper can limit the maximum movement distance of the tray, for example, when the tray is moved into the tray, the tray cannot move any further when the third L-shaped hook reaches the second stopper 281, so that it can be known that the tray reaches the maximum movement distance, and the tray has been moved into the detector accommodating box.

A second blocking piece 424 is further installed on the second side of the tray, the second blocking piece and the elastic bead base 421 and the elastic bead 422 installed on the rear case constitute a fixing assembly 282, the fixing assembly 282 and the fixing assembly 272 share the same elastic bead base 421 and elastic bead 422, that is, a group of elastic bead bases 421 and elastic beads 422 are installed on the rear case, and a blocking piece 423 and a second blocking piece 424 are installed at a first end and a second end of the bottom of the tray, respectively, and the second blocking piece 424 can be used to fix the position of the tray when the tray is completely moved into the detector receiving box.

Similarly, the second blocking piece 424 is disposed at the bottom of the tray, and unlike the blocking piece 423, the blocking piece 423 is installed beyond the first side of the tray, at the end of the first side, and the second blocking piece 424 is installed without exceeding the second side of the tray, directly at the bottom of the tray. The mounting position of the second stop 424 depends on the mounting positions of the resilient bead and the resilient bead seat, i.e. the position where the second stop can reach the resilient bead and the resilient bead seat when the tray is completely moved into the detector receiving box.

The second baffle 424 includes a third inclined surface and a fourth inclined surface, wherein the fourth inclined surface is close to the second side of the tray, the third inclined surface is far away from the second side of the tray compared with the fourth inclined surface, and the inclination of the fourth inclined surface is steeper compared with the third inclined surface. The steep or gentle centering of the two inclined surfaces of the flap is determined by the direction of movement of the tray, the inclined surface that is farther from the direction of movement of the tray is arranged steeper to fix the position of the tray, for example, for the flap 423, it is used to act when the tray moves out of the detector accommodating box, i.e., the direction of movement of the tray is farther from the detector accommodating box, then the second inclined surface that is closer to the tray is arranged slower, the first inclined surface that is farther from the tray is arranged steeper, and for the second flap 424, it is used to act when the tray moves into the detector accommodating box, i.e., the direction of movement of the tray is closer to the detector accommodating box, then the fourth inclined surface that is closer to the second side of the tray is arranged more tremble, and the third inclined surface that is farther from the second side of the tray is arranged slower.

In the process that the tray moves into the detector accommodating box, when the tray is about to completely move into the detector accommodating box, the third inclined surface of the baffle plate slowly approaches the elastic bead, when the bulge reaches the position of the elastic bead 422, the bulge can apply a certain pressure to the elastic bead 422, and at the moment, under the limit of the second limit block 281, the bulge and/or the fourth inclined surface are matched with the elastic bead, so that the position of the tray relative to the rear shell is positioned.

When the user needs to move the tray out of the detector accommodating box, the tray can be moved out of the detector accommodating box only after overcoming the resistance caused by the fact that the fourth inclined plane extrudes the elastic beads under the action of external force.

Through set up a set of elastic bead base and elastic bead at the backshell, and install two separation blades on the tray, can realize when the tray moves out completely or moves into two positions of detector holding box completely, the position of fixed tray for the tray can not remove any more, not only makes things convenient for loading into or taking out of detector, can also be when the tray moves into completely, the position of fixed detector, avoids the skew of the detector position that the removal of tray brought, and then causes the deviation of medical image.

Although the above embodiments show the detectors being moved into or out of the detector receiving box by means of a tray, it will be appreciated by those skilled in the art that the detectors may be inserted directly into the detector receiving box without using a tray, and without the need for mounting the second and third stop means, only the first set of stop means need be provided on the rear housing for defining the position of the detectors.

According to the detector assembly provided by the embodiment of the utility model, the plurality of reinforcing ribs are arranged on the rear shell of the detector accommodating box, so that the rear shell is attractive in appearance and can play a supporting role, and the support guide rail, the support frame of the ionization chamber, the charging interface, the tray, the detector arranged on the tray and other devices are not needed to be provided, so that the cost is saved, the weight of the detector assembly is reduced, the structure is simplified, and the movement of the detector assembly in the upright post is controlled more conveniently and accurately. In addition, through setting up a plurality of spacing units on the tray for the detector no longer need align in the in-process of placing at the tray, on the other hand avoided the detector to take place the condition such as shift, turn on one's side at the in-process that the tray removed. Furthermore, through setting up spacing and fixed subassembly between the connecting portion of tray and backshell, on the one hand in the position that the tray was moved out the detector completely and hold the box, the tray is fixed or is locked, makes things convenient for the installation or the taking out of detector, on the other hand, on the position that the tray was moved into the detector completely and holds the box, the tray also can be locked, avoids the detector to shift, same group fixed subassembly can lock the tray on two extreme positions, avoids the shift of detector and can save the cost.

Some embodiments of the utility model provide a detector assembly. The detector assembly is installed on the stand of the X-ray imaging system, the detector assembly comprises a detector and a detector accommodating box, the detector can receive X-rays, the detector accommodating box can accommodate the detector, the detector accommodating box comprises a rear shell, the rear shell can be fixed on the stand, and a plurality of reinforcing ribs are arranged on the inner side of the rear shell to support the detector.

Specifically, the rear shell and the plurality of reinforcing ribs are integrally formed.

Specifically, the detector assembly further includes a tray, a first side of which is connected to the rear housing and is movable relative to the rear housing to move the detector into or out of the detector receiving box.

Specifically, the rear shell is provided with a first group of reinforcing ribs, the detector assembly further comprises a guide rail, the guide rail is mounted on the first group of reinforcing ribs, and the tray is mounted relative to the guide rail.

Specifically, the rear shell is provided with a second group of reinforcing ribs, and the detector assembly further comprises a support frame of the ionization chamber, a preamplifier of the ionization chamber and a charging interface of the detector, wherein the support frame of the ionization chamber, the preamplifier of the ionization chamber and the charging interface of the detector are arranged on the second group of reinforcing ribs.

Specifically, install on the tray and be used for fixing the first group stop device of detector, stop device is including installing first spacing unit and the second spacing unit of tray bottom to and be used for fixing the at least one third spacing unit of detector side, first and second spacing unit be L type dog, and have with detector complex recess.

Specifically, the third limiting unit is an I-shaped stop block and is provided with a groove matched with the detector.

Specifically, the third limiting unit is an elastic limiting component with a spring, and the spring can be compressed to fix the detector.

Specifically, the spacing subassembly of elasticity includes the base, slider and briquetting, and the base is installed on the tray, just the spring is installed on the base, the slider with spring coupling, the one end of briquetting be used for with the detector cooperation, the other end with the slider is connected, just the briquetting can be in when the detector is installed, drive the slider compression the spring.

Specifically, a second group of limiting devices for limiting the tray are arranged between the tray and the connecting part of the rear shell.

Specifically, the second group of limiting devices comprises limiting blocks arranged at the first end and fixing components arranged at the second end, the limiting blocks can limit the moving distance of the tray relative to the detector accommodating box, and the fixing components can fix the tray.

Specifically, fixed subassembly includes elastic bead base, elastic bead and separation blade, and elastic bead base installs on the backshell, just elastic bead base is including having open-ended accommodation space, elastic bead sets up in the accommodation space, just at least a portion of elastic bead surpasses the opening sets up, and the separation blade is installed the tip of tray, just the separation blade includes the arch, the arch can with elastic bead cooperation.

In particular, the flap includes a first sloped surface and a second sloped surface disposed adjacent the resilient bead, and the first sloped surface is disposed steeper than the second sloped surface.

Some embodiments of the present utility model provide a column apparatus. The stand device includes the stand, and detector subassembly and connecting portion, the detector subassembly passes through connecting portion install on the stand, the detector subassembly includes detector and detector accommodation box, the detector can receive X ray, the detector accommodation box can hold the detector, the detector accommodation box includes the backshell, the backshell can be fixed on the stand, just the inboard of backshell is provided with many strengthening ribs in order to support the detector.

Some embodiments of the utility model provide an X-ray imaging system. The X-ray imaging system comprises a stand column, the detector assembly is installed on the stand column, the detector assembly comprises a detector and a detector accommodating box, the detector can receive X-rays, the detector accommodating box can accommodate the detector, the detector accommodating box comprises a rear shell, the rear shell can be fixed on the stand column, and a plurality of reinforcing ribs are arranged on the inner side of the rear shell so as to support the detector.

Some exemplary embodiments have been described above, however, it should be understood that various modifications may be made. For example, suitable results may be achieved if the described techniques were performed in a different order and/or if components in the described systems, architectures, devices or circuits were combined in a different manner and/or replaced or supplemented by additional components or equivalents thereof. Accordingly, other embodiments are within the scope of the following claims.

Claims (15)

1. A detector assembly for mounting on a column of an X-ray imaging system, the detector assembly comprising:

a detector capable of receiving X-rays;

the detector accommodation box can accommodate the detector, the detector accommodation box includes the backshell, the backshell is fixed on the stand, just the inboard of backshell is provided with many strengthening ribs in order to support the detector.

2. The probe assembly of claim 1 wherein the rear housing and the plurality of ribs are integrally formed.

3. The detector assembly of claim 1, further comprising:

and the first side of the tray is connected with the rear shell and can move relative to the rear shell so as to drive the detector to move in or out of the detector accommodating box.

4. A sonde assembly according to claim 3, wherein a first set of ribs is provided on said rear housing, and wherein said sonde assembly further includes a rail mounted on said first set of ribs, said tray being mounted relative to said rail.

5. The detector assembly of claim 4, wherein a second set of ribs is provided on the rear housing, and further comprising a support frame for the ionization chamber mounted on the second set of ribs, a preamplifier for the ionization chamber, and a charging interface for the detector.

6. A detector assembly according to claim 3, wherein the tray is provided with a first set of locating means for securing the detector, the locating means comprising a first locating means and a second locating means mounted on the bottom of the tray, and at least one third locating means for securing the detector side, the first locating means and the second locating means being L-shaped stops and having grooves for engagement with the detector.

7. The detector assembly of claim 6, wherein the third stop unit is an I-block and has a recess that mates with the detector.

8. The detector assembly of claim 6, wherein the third stop unit is a spring-loaded resilient stop assembly, the spring being compressible to secure the detector.

9. The detector assembly of claim 8, wherein the resilient stop assembly comprises:

a base mounted on the tray, and the spring is mounted on the base;

a slider connected to the spring; and

and one end of the pressing block is used for being matched with the detector, the other end of the pressing block is connected with the sliding block, and the pressing block can drive the sliding block to compress the spring when the detector is installed.

10. A sonde assembly according to claim 3, wherein a second set of restraining means is provided between the tray and the connection of the rear housing for restraining the tray.

11. The detector assembly of claim 10, wherein the second set of stop means includes a stop block mounted at the first end and a securing assembly mounted at the second end, the stop block being configured to limit a distance of movement of the tray relative to the detector receiving box, the securing assembly being configured to secure the tray.

12. The detector assembly of claim 11, wherein the securing assembly comprises:

an elastic bead base mounted on the rear case, and including a receiving space having an opening;

an elastic bead disposed within the accommodation space, and at least a portion of the elastic bead is disposed beyond the opening; and

the separation blade, it is installed the tip of tray, just the separation blade includes the arch, protruding can with the cooperation of elasticity pearl.

13. The detector assembly of claim 12, wherein the baffle includes a first ramp and a second ramp disposed adjacent the resilient bead, and wherein the first ramp is disposed steeper than the second ramp.

14. A column arrangement of an X-ray imaging system, comprising a detector assembly according to any of claims 1-13.

15. An X-ray imaging system comprising a detector assembly according to any one of claims 1-13.