X-ray photography bed and X-ray photography system

Abstract

The invention relates to the field of medical instruments, in particular to an X-ray radiography bed. The X-ray radiography bed comprises a bed frame, a bed panel, a film box assembly, a movement mechanism and an in-place prompting mechanism, and the bed panel is used for a to-be-detected object to lie and is movably mounted on the bed frame. The in-place prompting mechanism comprises a first in-place structure located on the bed frame and a second in-place structure located on the bed panel. At least when the bed panel moves to a target position along the first direction, the first in-place structure and the second in-place structure are matched with each other to give out in-place prompt. When the bed panel moves to the target position, the in-place prompting mechanism can prompt the bed panel to move in place, so that an operator can judge conveniently, the operator can judge that the bed panel moves in place easily, and the operator can operate conveniently; therefore, the problem of inconvenience in operation caused by difficulty in judging whether the bed panel is in place or not when the bed panel is operated to move relative to the bed frame at present is solved.

Description

Technical Field

[0001] This application relates to the field of medical devices, specifically to an X-ray imaging bed. Background Technology

[0002] When taking X-ray images of a patient in a supine position, the patient needs to lie on an X-ray imaging table before the images are taken. The table panel of the X-ray imaging table can typically move horizontally on the bed frame to change the patient's position. Beneath the table panel is a film cassette assembly containing an X-ray detector. The X-ray detector is positioned opposite the X-ray emitter of the X-ray imaging system, allowing the emitter to direct radiation towards the detector. Currently, for some special imaging requirements, the table panel often needs to be moved to a specific position. However, in practice, it is not easy for the operator to determine whether the table panel is in the correct position when manipulating it, resulting in operational inconvenience. Summary of the Invention

[0003] This application provides an X-ray imaging bed to improve the inconvenience caused by the difficulty in judging whether the bed panel is in place when it moves relative to the bed frame.

[0004] In addition, the purpose of this application is to provide an X-ray imaging system using the above-mentioned X-ray imaging table.

[0005] In a first aspect, one embodiment provides an X-ray imaging bed, comprising:

[0006] bedstead;

[0007] A bed panel for the subject to be tested to lie on, and the bed panel is movably mounted on the bed frame;

[0008] A film cassette assembly is disposed below the bed panel, and the film cassette assembly includes an X-ray detector for receiving X-rays passing through the object to be examined;

[0009] A motion mechanism, wherein the motion mechanism is used to enable the bed panel to move relative to the bed frame at least along a first direction;

[0010] The system includes a positioning prompting mechanism comprising a first positioning structure on the bed frame and a second positioning structure on the bed panel; at least when the bed panel moves to a position at the first center along the first direction and aligns with a position at the second center along the first direction, the first positioning structure and the second positioning structure cooperate to provide a positioning prompt.

[0011] In another embodiment, the first direction is the front-to-back direction, and the size of the bed panel in the left-to-right direction is greater than or equal to the size in the front-to-back direction.

[0012] Furthermore, in one embodiment, the X-ray imaging table further includes a film cassette drive mechanism, which drives the film cassette assembly to move at least forward and backward, so that the film cassette assembly has at least two X-ray receiving positions. When the film cassette assembly is in at least two of the X-ray receiving positions, it can receive X-rays passing through the object to be inspected and perform X-ray imaging. The film cassette assembly is mounted on the bed frame, and the film cassette assembly does not move when the bed panel moves relative to the bed frame.

[0013] Furthermore, in one embodiment, the vertical plane that bisects the bed panel in the first direction is the first plane, and the vertical plane that bisects the bed frame in the first direction is the second plane. When the first plane and the second plane are coplanar, the positioning prompting mechanism provides the positioning prompt.

[0014] Furthermore, in one embodiment, at least one of the positioning prompting mechanisms is a mechanical prompting mechanism, wherein the first positioning structure and the second positioning structure of the mechanical prompting mechanism cooperate to emit a positioning prompting sound to provide the positioning prompt.

[0015] In another embodiment, the first positioning structure and the second positioning structure of the mechanical prompting mechanism emit a positioning prompt sound through a locking engagement.

[0016] Furthermore, in one embodiment, one of the first positioning structure and the second positioning structure of the mechanical prompting mechanism has a slot, and the other includes an elastic element and a retaining element adapted to the slot; the elastic element is used to act on the retaining element so that the positioning prompting sound is emitted when the retaining element is engaged in the slot.

[0017] Furthermore, in one embodiment, the at least one positioning prompting mechanism is a mechanical prompting mechanism; the first positioning structure of the mechanical prompting mechanism cooperates with the second positioning structure to increase the resistance to the continued movement of the bed panel and provide the positioning prompt to the operator.

[0018] In another embodiment, the first positioning structure and the second positioning structure of the mechanical prompting mechanism are engaged to increase the resistance to the continued movement of the bed panel and to emit a positioning prompt sound.

[0019] Furthermore, in one embodiment, one of the first positioning structure and the second positioning structure of the mechanical prompting mechanism has a slot, and the other includes an elastic element and a retaining element adapted to the slot; the elastic element is used to act on the retaining element, so that when the retaining element is engaged in the slot, it emits a positioning prompting sound to provide the positioning prompt, and after the retaining element is engaged with the slot, it increases the resistance to the continued movement of the bed panel, providing the positioning prompt to the operator.

[0020] In a further embodiment, the retaining member is a retaining ball or a retaining post, and the elastic member is a spring that applies elastic force to the retaining ball or retaining post.

[0021] Furthermore, in one embodiment, at least one of the positioning prompting mechanisms is a signal prompting mechanism. The first positioning structure and the second positioning structure of the signal prompting mechanism cooperate to generate a position signal. At least one of the first positioning structure and the second positioning structure includes a positioning prompting device. The positioning prompting device responds to the position signal and generates the positioning prompt at least when the bed panel moves to a position at the first middle part along the first direction and aligns with the position at the second middle part of the bed frame along the first direction.

[0022] In another embodiment, the position signal is a positioning signal generated by the first positioning structure and the second positioning structure cooperating when the bed panel is in position.

[0023] In a further embodiment, at least a portion of the first positioning structure and / or at least a portion of the second positioning structure forms a positioning detection element, wherein the positioning detection element is a micro switch, a photoelectric switch, or a Hall sensor.

[0024] Furthermore, in one embodiment, at least a portion of the first positioning structure and / or at least a portion of the second positioning structure forms a ranging sensor; the position signal is a real-time position signal of the bed panel relative to the bed frame detected by the cooperation of the first positioning structure and the second positioning structure.

[0025] In another embodiment, the arrival prompting device is a sound / light generator, which generates a sound / light arrival prompt in response to the position signal.

[0026] In a further embodiment, the motion mechanism is also used for moving the bed panel relative to the bed frame in a second direction, the second direction being the left-right direction, wherein the dimension of the bed panel in the left-right direction is greater than or equal to the dimension in the front-back direction.

[0027] In another embodiment, the X-ray imaging bed includes a position detection mechanism for obtaining the position of the bed panel.

[0028] In one embodiment, an X-ray imaging bed is provided, comprising:

[0029] bedstead;

[0030] A bed panel for the subject to be tested to lie on, and the bed panel is movably mounted on the bed frame;

[0031] A film cassette assembly is disposed below the bed panel, and the film cassette assembly includes an X-ray detector for receiving X-rays passing through the object to be examined;

[0032] A motion mechanism, wherein the motion mechanism is used to move the bed panel relative to the bed frame at least along a first direction;

[0033] The system includes a positioning prompting mechanism comprising a first positioning structure on the bed frame and a second positioning structure on the bed panel; at least when the bed panel moves to the target position along the first direction, the first positioning structure and the second positioning structure cooperate to provide a positioning prompt.

[0034] In a further embodiment, the motion mechanism is also used for moving the bed panel relative to the bed frame in a second direction; the first direction is the front-back direction, the second direction is the left-right direction, and the dimension of the bed panel in the left-right direction is greater than or equal to the dimension in the front-back direction.

[0035] In a further embodiment, the X-ray imaging bed includes a film cassette drive mechanism for driving the film cassette assembly to move at least forward and backward, so that the film cassette assembly has at least two X-ray receiving positions. When the film cassette assembly is in at least two of the X-ray receiving positions, it can receive X-rays passing through the object to be inspected and the bed panel and perform X-ray imaging. The film cassette assembly is mounted on the bed frame, and the film cassette assembly does not move when the bed panel moves relative to the bed frame.

[0036] Furthermore, in one embodiment, at least one of the positioning prompting mechanisms is a mechanical prompting mechanism, wherein the first positioning structure and the second positioning structure of the mechanical prompting mechanism cooperate to emit a positioning prompting sound to provide the positioning prompt.

[0037] Furthermore, in one embodiment, at least one of the positioning prompting mechanisms is a mechanical prompting mechanism; the first positioning structure of the mechanical prompting mechanism cooperates with the second positioning structure to increase the resistance to the continued movement of the bed panel and provide the positioning prompt to the operator.

[0038] Furthermore, in one embodiment, at least one of the positioning prompting mechanisms is a signal prompting mechanism. The first positioning structure and the second positioning structure of the signal prompting mechanism cooperate to generate a position signal. At least one of the first positioning structure and the second positioning structure includes a positioning prompting device. The positioning prompting device responds to the position signal and generates the positioning prompt at least when the bed panel moves to the target position along the first direction.

[0039] In another embodiment, the target position is the position where the bed panel moves from a first preset position along the first direction to a position aligned with a second preset position of the bed frame along the first direction.

[0040] In another embodiment, the X-ray imaging bed further includes a bed panel drive mechanism for driving the bed panel to move relative to the bed frame at least in a first direction.

[0041] In a second aspect, one embodiment provides an X-ray imaging system including a ray emitter and an X-ray imaging bed as described in any embodiment of the first aspect.

[0042] According to the above embodiment of the X-ray imaging bed, the X-ray imaging bed includes a positioning indication mechanism. When the bed panel moves to the target position, the positioning indication mechanism can indicate that the bed panel has moved into position, which is convenient for the operator to judge. This makes it easier for the operator to judge whether the bed panel has moved into position, which is convenient for the operator to operate. This improves the problem of inconvenience caused by the difficulty in judging whether the bed panel is in position when the bed panel moves relative to the bed frame. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the structure of an X-ray imaging bed in one embodiment;

[0044] Figure 2 for Figure 1 Enlarged view of section A;

[0045] Figure 3 An isometric view of an X-ray imaging bed in one embodiment;

[0046] Figure 4 This is a top view of an X-ray imaging bed in one embodiment;

[0047] Figure 5 for Figure 4 Enlarged view of section B;

[0048] Figure 6 This is a schematic diagram of the structure of the second positioning indication mechanism in one embodiment;

[0049] Figure 7 This is a schematic diagram of the third positioning indication mechanism in one embodiment;

[0050] Figure 8 This is a schematic diagram of the mounting structure of a laser sensor in one embodiment;

[0051] Figure 9 This is a schematic diagram of the mounting structure of a wire encoder in one embodiment.

[0052] List of feature names corresponding to the reference numerals in the figure: 1. Bed frame; 11. Support base; 2. Bed panel; 21. Guide rail; 3. Position indication mechanism; 301. Mechanical indication mechanism; 302. Signal indication mechanism; 31. First position structure; 311. Elastic element; 312. Holding element; 313. Micro switch; 314. Photoelectric switch; 315. Hall sensor; 32. Second position structure; 321. Slot; 322. Block; 323. Micro switch mating structure; 324. Sensing plate; 325. Magnetic element; 33. Distance sensor; 331. Laser distance sensor; 332. Wire encoder; 4. Plate box assembly.

[0053] Explanation of reference numerals in parentheses in the accompanying drawings: The feature referred to by the reference numerals in parentheses in the accompanying drawings is the feature represented by both the number inside the parentheses and the number outside the parentheses. Detailed Implementation

[0054] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0055] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0056] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0057] To address the problem of inconvenient position determination when the bed panel of a current X-ray imaging table moves, the X-ray imaging table of this application provides positioning prompts through the cooperation of a first positioning structure and a second positioning structure, thereby making it easier for the operator to determine the position of the table.

[0058] In one embodiment, please refer to Figures 1 to 9 The X-ray imaging table includes a bed frame 1, a bed panel 2, a film cassette assembly 4, a motion mechanism (not shown in the figure), and a positioning indication mechanism 3. The bed panel 2 is for the subject to be examined to lie on, and the bed panel 2 is movably mounted on the bed frame 1.

[0059] A film cassette assembly 4 is disposed below the bed panel 2. The film cassette assembly 4 includes an X-ray detector for receiving X-rays passing through the object to be examined and performing X-ray imaging. A motion mechanism is provided for moving the bed panel 2 relative to the bed frame 1 at least in a first direction.

[0060] The positioning indication mechanism 3 includes a first positioning structure 31 on the bed frame 1 and a second positioning structure 32 on the bed panel 2. At least when the bed panel 2 moves to the target position along the first direction, the first positioning structure 31 and the second positioning structure 32 cooperate to provide positioning indication.

[0061] The X-ray imaging bed of this application adopts a positioning indication mechanism 3. When the bed panel 2 moves to the target position relative to the bed frame 1, the positioning indication mechanism 3 can indicate that the bed panel 2 has moved to the target position, which makes it convenient for the operator to judge. This makes it easier for the operator to judge that the bed panel 2 has moved to the target position and facilitates the operation.

[0062] Regarding the motion mechanism, the motion mechanism is used to realize the movement of the bed panel 2 relative to the bed frame 1. In one embodiment, the motion mechanism can be a guide mechanism located between the bed panel 2 and the bed frame 1. For example, the motion mechanism includes a guide rail mounted on the bed frame 1 and a guide groove on the bed panel 2 that is adapted to the guide rail. The guide mechanism can enable the bed panel 2 to move relative to the bed frame 1 in a first direction via the motion mechanism. In one embodiment, the motion mechanism can also be a multi-dimensional motion mechanism located between the bed panel 2 and the bed frame 1, that is, the bed panel 2 can move relative to the bed frame 1 in multiple directions. In one embodiment, the multi-dimensional motion mechanism can be a three-dimensional motion mechanism. In another embodiment, the motion mechanism can be a two-dimensional motion mechanism. Under the action of the motion mechanism, the bed panel 2 can move relative to the bed frame 1 in both a first direction and a second direction. The first direction and the second direction can be any angle greater than 0 degrees. For example, in one embodiment, the first direction and the second direction are perpendicular, and the angle between them is 90 degrees. In one embodiment, the motion mechanism is a horizontal motion mechanism that enables the bed panel 2 to move horizontally relative to the bed frame 1.

[0063] Regarding the movement of the bed panel 2, in one embodiment, the bed panel 2 can be moved by manually pushing it relative to the bed frame 1. Of course, as a more convenient form, in one embodiment, the X-ray imaging bed includes a bed panel drive mechanism (not shown in the figure), which drives the bed panel 2 to move relative to the bed frame 1 at least along a first direction. In one embodiment, the bed panel drive mechanism can also drive the bed panel 2 to move along a second direction.

[0064] The bed panel drive mechanism can either drive the bed panel 2 to move under the action of a controller, for example, in one embodiment, the bed panel drive mechanism controls the movement of the bed panel 2, and the operator only needs to turn on the switch or issue a command to the computer, and the bed panel drive mechanism can drive the bed panel 2 to move according to the set program. Alternatively, the bed panel drive mechanism can drive the bed panel 2 to move under manual operation instructions, for example, in one embodiment, the bed panel drive mechanism includes a drive motor and a control button. When the operator presses the button, the drive motor starts and drives the bed panel 2 to move; when the operator releases the button, the drive motor stops working and the bed panel 2 stops moving.

[0065] In one embodiment, the bed panel drive mechanism can be directly connected to the bed panel 2, or it can transmit power to a motion mechanism to drive the bed panel 2 to move. The bed panel drive mechanism includes, but is not limited to, a motor-driven lead screw and nut mechanism, a motor-driven gear and rack mechanism, or a motor-driven pulley mechanism.

[0066] It should be noted that, please refer to Figure 1 and Figure 2In this application, the first positioning structure 31 being located on the bed frame 1 includes both direct mounting of the first positioning structure 31 on the bed frame 1 and indirect configuration on the bed frame 1. For example, the motion mechanism includes a support seat 11 on the bed frame, and the first positioning structure 31 is arranged on the support seat 11. Similarly, the second positioning structure 32 being located on the bed panel 2 includes both direct mounting of the second positioning structure 32 on the bed panel 2 and indirect configuration on the bed panel 2. For example, a guide rail 21 is installed below the bed panel 2, and the second positioning structure 32 is mounted on the guide rail 21.

[0067] In one embodiment, the target position is the position where the bed panel 2 moves from a first preset position along the first direction to a position aligned with a second preset position of the bed frame 1 along the first direction.

[0068] In one embodiment, the first preset position is the center position of the bed panel 2 in the first direction, and the second preset position is the center position of the bed frame 1 in the first direction. To distinguish between the center of the bed panel 2 in the first direction and the center of the bed frame 1 in the first direction, the center of the bed panel 2 in the first direction is named the first center, and the center of the bed frame 1 in the first direction is named the second center. That is, in one embodiment, at least when the first center position of the bed panel 2 moves to align with the second center position of the bed frame 1, the first positioning structure 31 and the second positioning structure 32 cooperate to provide a positioning indication.

[0069] It should be noted that in this application, both the first and second middle portions are regions encompassing a certain length. The vertical plane bisects the bed panel 2 in the first direction is the first plane, and the vertical plane bisects the bed frame 1 in the first direction is the second plane. The first middle portion is the area near the first plane of the bed panel 2, and the second middle portion is the area near the second plane on the bed frame 1. In one embodiment, where high precision is required, the positioning indicator 3 may only provide a positioning indication when the first and second planes are coplanar.

[0070] In some other embodiments, the target position can be any position set as needed, in addition to the first preset position on the bed panel 2 moving to the position aligned with the second middle position. For example, the target position can be the position where one edge of the bed panel 2 moves along the first direction to the position aligned with one edge of the bed frame 1 along the first direction, the position where one edge of the bed panel 2 moves along the first direction to the position aligned with the second middle position on the bed frame 1, or the position where the first middle position on the bed panel 2 moves to the position aligned with one edge of the bed frame 1 along the first direction, etc.

[0071] In one embodiment, please refer to Figure 1 and Figure 4The first direction is the front-to-back direction, and the dimension of the bed panel 2 in the left-to-right direction is greater than or equal to its dimension in the front-to-back direction. At least one positioning indication mechanism 3 is a front-to-back positioning indication mechanism 3, which provides a positioning indication after the bed panel 2 has moved to the target position.

[0072] In one embodiment, please refer to Figure 1 and Figure 4 The motion mechanism is also used for the bed panel 2 to move relative to the bed frame 1 in a second direction, which is the left-right direction. This allows the bed panel 2 to move forward, backward, left, and right. Of course, in some other embodiments, the bed panel 2 can also be made to move only forward or backward or only left and right relative to the bed frame 1 as needed.

[0073] In one embodiment, please refer to Figure 1 and Figure 4 The X-ray imaging table includes a film cassette drive mechanism (not shown in the figure). This mechanism drives the film cassette assembly 4 to move at least forward and backward, giving it at least two X-ray receiving positions. When the film cassette assembly 4 is in at least two X-ray receiving positions, it can receive X-rays passing through the object to be inspected and the bed panel 2, and perform X-ray imaging. The film cassette drive mechanism can be an electric actuator or other feasible linear drive mechanism. The film cassette assembly 4 is mounted on the bed frame 1. The film cassette assembly 4 does not move when the bed panel 2 moves relative to the bed frame 1. Essentially, the bed panel 2 only moves relative to the bed frame 1 when the film cassette assembly is fixed at a certain position (e.g., remaining stationary at at least two X-ray receiving positions). When the bed panel 2 moves to a preset position, a preset positional relationship between the bed panel and the bed frame is achieved.

[0074] Because the film cassette assembly 4 can move back and forth, X-ray images acquired by the film cassette assembly 4 at different positions can be stitched together. The positioning indication mechanism 3 provides a positioning indication when the first center position aligns with the second center position, ensuring the bed panel 2 is centered during X-ray imaging. A centered bed panel 2 facilitates image stitching. In one embodiment, the initial position of the film cassette assembly 4 is in the center of the bed frame 1, i.e., in the second center position. Centering the bed panel 2 reduces the range of motion of the film cassette assembly 4, allowing it to complete a comprehensive scan of the bed panel 2 with less effort.

[0075] In contrast, when using an X-ray imaging table for examination and image stitching is required, if the table panel 2 is not centered and its position is uncertain, the film cassette assembly 4 needs to be designed with greater redundancy in the front-back direction. This means the film cassette assembly 4 needs a larger travel distance in the front-back direction to fully probe the table panel 2 and obtain a complete image for stitching. When the table panel 2 is centered and its position is fixed, the redundancy in the front-back direction of the film cassette assembly 4 is shorter, and its operating space can be reduced.

[0076] Based on the above concept, in one embodiment, the bed panel 2 can also move in the left-right direction. Similarly, in one embodiment, the cassette assembly 4 can also move in the left-right direction.

[0077] The arrival notification mechanism 3 in this application can be any feasible notification mechanism. In one embodiment, please refer to... Figures 1 to 4 At least one positioning prompting mechanism 3 is a mechanical prompting mechanism 301. The first positioning structure 31 and the second positioning structure 32 of the mechanical prompting mechanism 301 cooperate to emit a positioning prompting sound to provide a positioning prompt.

[0078] Specifically, in one embodiment, please refer to Figures 1 to 4 The first positioning structure 31 and the second positioning structure 32 of the mechanical prompting mechanism 301 emit a positioning prompt sound through a locking cooperation.

[0079] In one embodiment, in addition to providing the form of the sound, please refer to Figures 1 to 4 The first positioning structure 31 and the second positioning structure 32 of the mechanical prompting mechanism 301 cooperate to increase the resistance to the continued movement of the bed panel 2 and give the operator a positioning prompt.

[0080] Of course, in one embodiment, please refer to Figures 1 to 4 The mechanical prompting mechanism 301, while emitting a positioning sound to indicate that the bed panel 2 has reached its designated position, can also simultaneously increase the resistance to further movement of the bed panel 2 to provide a positioning indication to the operator. Specifically, in one embodiment, the first positioning structure 31 and the second positioning structure 32 of the mechanical prompting mechanism 301 engage in a locking mechanism to increase the resistance to further movement of the bed panel 2 and emit a positioning sound.

[0081] Regarding the method of holding the card, in one embodiment, please refer to... Figure 1 and Figure 2The mechanical prompting mechanism 301 includes a first positioning structure 31 and a second positioning structure 32, one of which has a slot 321, and the other includes an elastic element 311 and a retaining element 312 adapted to the slot 321. The elastic element 311 acts on the retaining element 312, causing a "click" sound when the retaining element 312 engages with the slot 321. In one embodiment, after the retaining element 312 engages with the slot 321, it increases the resistance to the continued movement of the bed panel 2, providing a positioning prompt to the operator.

[0082] The retaining member 312 engages with the slot 321, and the elastic member 311 applies force to the retaining member 312. After the retaining member 312 is engaged in the slot 321, a prompt sound is emitted. At the same time, the slot 321 prevents the retaining member 312 from leaving, thereby increasing the resistance to the continued movement of the bed panel 2. The operator needs to apply more force when operating the bed panel 2 to continue moving.

[0083] Specifically, in one embodiment, please refer to Figure 2 The retaining element 312 is a retaining ball or a retaining post, and the elastic element 311 is a spring that applies elastic force to the retaining ball or retaining post. In one embodiment, please refer to... Figure 4 and Figure 8 The retaining member 312 is installed on the bed panel 2, and the second positioning structure 32 includes a retaining block 322 installed on the bed frame 1, with a retaining groove 321 located on the retaining block 322.

[0084] In some other embodiments, besides the engagement of the slot 321 and the retaining member 312, the first positioning structure 31 and the second positioning structure 32 can also provide a positioning indication through magnetic attraction. After the bed panel 2 moves into position, the first positioning structure 31 and the second positioning structure 32 maintain their position through magnetic attraction. If the bed panel 2 wants to continue moving, it needs to overcome the magnetic attraction, thereby increasing the resistance to the continued movement of the bed panel 2 through magnetic attraction and providing a positioning indication to the operator. In some other embodiments, the first positioning structure 31 and the second positioning structure 32 can also increase the friction after the bed panel 2 reaches the target position. The methods of increasing friction include using materials with different coefficients of friction, adding patterns at a set position, and other structures that increase friction. In some other embodiments, the first positioning structure 31 and the second positioning structure 32 can also provide resistance through the elastic element 311. For example, after the bed panel 2 is in position, the elastic element 311 neither compresses nor extends. If the bed panel 2 is to leave the target position, the elastic element 311 needs to be stretched or compressed. The elastic force of the elastic element 311 forms resistance that prevents the bed panel 2 from leaving.

[0085] Of course, in one embodiment, in addition to using the mechanical prompting mechanism 301 described above, the positioning prompting mechanism 3 may also employ other methods, please refer to [the following embodiment]. Figure 1At least one positioning prompting mechanism 3 is a signal prompting mechanism 302. The first positioning structure 31 and the second positioning structure 32 of the signal prompting mechanism 302 cooperate to generate a position signal. At least one of the first positioning structure 31 and the second positioning structure 32 includes a positioning prompting device (not shown in the figure). The positioning prompting device responds to the position signal and generates a positioning prompt at least when the bed panel 2 moves to the target position along the first direction.

[0086] The position signal can be either a real-time position signal acquired in real time or a position signal generated after the bed panel 2 is detected to be in position. The response method of the position indication device can be any feasible method. For example, the position indication device responds to the position signal via a controller; the controller receives the position signal, and when the position signal indicates that the bed panel 2 has moved to the target position, the controller controls the position indication device to generate a position indication. Alternatively, the position indication device can be directly integrated into the circuit that generates the position signal; please refer to [reference needed]. Figure 6 One of the first positioning structure 31 and the second positioning structure 32 includes a micro switch 313, and the other includes a micro switch engagement structure 323 that triggers the micro switch 313 after the bed panel 2 moves to the correct position. The positioning indication device is located on the circuit where the micro switch 313 is located. After the micro switch engagement structure 323 triggers the switch, the circuit where the positioning indication device is located is turned on, and the positioning indication device issues a positioning indication. Of course, in some other embodiments, in addition to connecting the positioning indication device to the circuit where the micro switch 313 is located, the micro switch 313 can also send a positioning signal to the controller, and the controller controls the positioning indication device to issue a positioning indication.

[0087] In one embodiment, the number of positioning indication mechanisms 3 can be arranged as needed. For example, there can be two or more positioning indication mechanisms 3, where at least one positioning indication mechanism 3 is a signal indication mechanism 302 and at least one positioning indication mechanism 3 is a mechanical indication mechanism 301. Of course, in one embodiment, at least two positioning indication mechanisms 3 can also be signal indication mechanisms 302. In another embodiment, at least two positioning indication mechanisms 3 can also be mechanical indication mechanisms 301.

[0088] In one embodiment, please refer to Figure 4 The mechanical prompting mechanism 301 and the signal prompting mechanism 302 can be arranged at intervals in the second direction.

[0089] In one embodiment, please refer to Figure 1 , Figures 5 to 7The position signal is the positioning signal generated when the first positioning structure 31 and the second positioning structure 32 cooperate to reach the positioning position of the bed panel 2. At least a portion of the first positioning structure 31 and / or at least a portion of the second positioning structure 32 forms a positioning detection element, which is a micro switch 313, a photoelectric switch 314, or a Hall sensor 315.

[0090] Specifically, in one embodiment, please refer to Figure 1 , Figures 5 to 7 At least a portion of the first positioning structure 31 forms a positioning detection element, which is a microswitch 313. At least a portion of the second positioning structure 32 forms a microswitch mating structure 323 adapted to the microswitch 313, which is used to cause the microswitch 313 to generate a positioning signal. In one embodiment, the microswitch mating structure 323 is a mating groove. In another embodiment, the positioning detection element can also be a photoelectric switch 314, and at least a portion of the second positioning structure 32 forms a sensing sheet 324 adapted to the photoelectric switch 314. In yet another embodiment, the positioning detection element can also be a Hall sensor 315, and at least a portion of the second positioning structure 32 forms a magnetic element 325 adapted to the Hall sensor 315. In one embodiment, the magnetic element 325 is a magnet.

[0091] In one embodiment, please refer to Figure 8 and Figure 9 At least a portion of the first positioning structure 31 and / or at least a portion of the second positioning structure 32 form a ranging sensor 33. The position signal is the real-time position signal of the bed panel 2 relative to the bed frame 1 detected by the cooperation of the first positioning structure 31 and the second positioning structure 32. In one embodiment, the ranging sensor 33 can be a laser ranging sensor 331 or a pull-wire encoder 332. In one embodiment, there are two ranging sensors 33, one mounted on the bed panel 2 and the other mounted on the bed frame 1.

[0092] In one embodiment, the arrival indication device (not shown in the figure) is a sound / light generator, which generates sound / light arrival indications in response to a position signal. The sound / light generator can be a sound generator, a light generator, or a sound-light generator. The sound generator generates an audible arrival indication in response to a position signal, the light generator generates an optical arrival indication, and the sound-light generator generates both audible and optical arrival indications simultaneously in response to a position signal. The audible arrival indications include different types of sounds, such as sounds of different pitches, different timbres, and different loudnesses. Different optical arrival indications include lights of different colors, different brightness levels, and different emission patterns.

[0093] In one embodiment, the X-ray imaging table includes a position detection mechanism for acquiring the position of the bed panel 2. Specifically, in one embodiment, similar to the two position signals described above, there are two types of position detection mechanisms: one for acquiring the position of the bed panel 2 when it moves to a target position, and another for acquiring the position of the bed panel 2 in real time. The X-ray imaging table includes a control system connected to the position detection mechanism. The control system can acquire the position information detected by the position detection mechanism and perform corresponding operations or acquire information about the bed panel 2 based on this position information. Specifically, in one embodiment, please refer to... Figures 5 to 9 The position detection mechanism can also employ the ranging sensor 33, photoelectric switch 314, micro switch 313, and Hall sensor 315 mentioned in the above embodiments. In this embodiment, the control system can only acquire the position of the bed panel 2 without providing an indication of its position; the indication of the bed panel 2's position is achieved solely through the mechanical indication mechanism 301.

[0094] In one embodiment of an X-ray imaging system, the X-ray imaging system includes a radiation emitter and an X-ray imaging bed as described in any of the above embodiments.

[0095] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. An X-ray imaging bed, characterized in that, include: bedstead; A bed panel for the subject to be tested to lie on, and the bed panel is movably mounted on the bed frame; A film cassette assembly is disposed below the bed panel, and the film cassette assembly includes an X-ray detector for receiving X-rays passing through the object to be examined; A motion mechanism, wherein the motion mechanism is used to enable the bed panel to move relative to the bed frame at least along a first direction; And a positioning prompting mechanism, the positioning prompting mechanism including a first positioning structure on the bed frame and a second positioning structure on the bed panel; At least when the bed panel moves to the position of the first middle part along the first direction and aligns with the position of the second middle part along the first direction, the first positioning structure and the second positioning structure cooperate to provide a positioning prompt.

2. The X-ray imaging bed as described in claim 1, characterized in that, The first direction is the front-to-back direction, and the size of the bed panel in the left-to-right direction is greater than or equal to the size in the front-to-back direction.

3. The X-ray imaging bed as described in claim 2, characterized in that, The X-ray imaging table also includes a film cassette drive mechanism, which drives the film cassette assembly to move at least forward and backward, so that the film cassette assembly has at least two X-ray receiving positions. When the film cassette assembly is in at least two of the X-ray receiving positions, it can receive X-rays passing through the object to be inspected and perform X-ray imaging. The film cassette assembly is mounted on the bed frame, and the film cassette assembly does not move when the bed panel moves relative to the bed frame.

4. The X-ray imaging bed as described in any one of claims 1-3, characterized in that, The vertical plane that bisects the bed panel in the first direction is the first plane, and the vertical plane that bisects the bed frame in the first direction is the second plane. When the first plane and the second plane are coplanar, the positioning prompting mechanism provides the positioning prompt.

5. The X-ray imaging bed as described in any one of claims 1-3, characterized in that, At least one of the positioning prompting mechanisms is a mechanical prompting mechanism, wherein the first positioning structure and the second positioning structure of the mechanical prompting mechanism cooperate to emit a positioning prompting sound to provide the positioning prompt.

6. The X-ray imaging bed as described in claim 5, characterized in that, The first positioning structure and the second positioning structure of the mechanical prompting mechanism emit a positioning prompt sound through a locking engagement.

7. The X-ray imaging bed as described in claim 6, characterized in that, The mechanical prompting mechanism has a slot in one of its first positioning structure and a retaining member adapted to the slot in the other; the elastic member acts on the retaining member so that the positioning prompting sound is emitted when the retaining member is engaged in the slot.

8. The X-ray imaging bed as described in any one of claims 1-3, characterized in that, The at least one positioning prompting mechanism is a mechanical prompting mechanism; the first positioning structure and the second positioning structure of the mechanical prompting mechanism cooperate to increase the resistance to the continued movement of the bed panel and provide the positioning prompt to the operator.

9. The X-ray imaging bed as described in claim 8, characterized in that, The first positioning structure and the second positioning structure of the mechanical prompting mechanism are engaged to increase the resistance to the continued movement of the bed panel and to emit a positioning prompt sound.

10. The X-ray imaging bed as described in claim 9, characterized in that, The mechanical prompting mechanism includes a slot in one of its first positioning structure and a retaining member adapted to the slot in the other. The elastic member acts on the retaining member, causing it to emit a positioning prompt sound when it is engaged in the slot, thus providing the positioning prompt. Furthermore, the retaining member increases the resistance to the continued movement of the bed panel after engaging with the slot, thereby providing the positioning prompt to the operator.

11. The X-ray imaging bed as described in claim 7 or 10, characterized in that, The retaining element is a retaining ball or a retaining post, and the elastic element is a spring that applies elastic force to the retaining ball or retaining post.

12. The X-ray imaging bed as described in any one of claims 1-3, characterized in that, At least one of the positioning prompting mechanisms is a signal prompting mechanism. The first positioning structure and the second positioning structure of the signal prompting mechanism cooperate to generate a position signal. At least one of the first positioning structure and the second positioning structure includes a positioning prompting device. The positioning prompting device responds to the position signal and generates the positioning prompt at least when the bed panel moves to a position at the first middle part along the first direction and aligns with the second middle part of the bed frame along the first direction.

13. The X-ray imaging bed as described in claim 12, characterized in that, The position signal is the position signal generated by the first positioning structure and the second positioning structure in cooperation when the bed panel is in position.

14. The X-ray imaging bed as described in claim 13, characterized in that, At least a portion of the first positioning structure and / or at least a portion of the second positioning structure form a positioning detection element, wherein the positioning detection element is a micro switch, a photoelectric switch, or a Hall sensor.

15. The X-ray imaging bed as described in claim 12, characterized in that, At least a portion of the first positioning structure and / or at least a portion of the second positioning structure forms a ranging sensor; the position signal is a real-time position signal of the bed panel relative to the bed frame detected by the cooperation of the first positioning structure and the second positioning structure.

16. The X-ray imaging bed as described in claim 12, characterized in that, The arrival prompt device is a sound / light generator, which generates a sound / light arrival prompt in response to the position signal.

17. The X-ray imaging bed as described in any one of claims 1-16, characterized in that, The motion mechanism is also used for the bed panel to move relative to the bed frame in a second direction, the second direction being the left-right direction, and the dimension of the bed panel in the left-right direction is greater than or equal to the dimension in the front-back direction.

18. The X-ray imaging bed as described in any one of claims 1-16, characterized in that, The X-ray imaging bed includes a position detection mechanism, which is used to obtain the position of the bed panel.

19. An X-ray imaging bed, characterized in that, include: bedstead; A bed panel for the subject to be tested to lie on, and the bed panel is movably mounted on the bed frame; A film cassette assembly is disposed below the bed panel, and the film cassette assembly includes an X-ray detector for receiving X-rays passing through the object to be examined; A motion mechanism, wherein the motion mechanism is used to move the bed panel relative to the bed frame at least along a first direction; And a positioning prompting mechanism, the positioning prompting mechanism including a first positioning structure on the bed frame and a second positioning structure on the bed panel; At least when the bed panel moves to the target position along the first direction, the first positioning structure and the second positioning structure cooperate to provide a positioning prompt.

20. The X-ray imaging bed as described in claim 19, characterized in that, The motion mechanism is also used for the bed panel to move relative to the bed frame in a second direction; the first direction is the front-to-back direction, the second direction is the left-to-right direction, and the size of the bed panel in the left-to-right direction is greater than or equal to the size in the front-to-back direction.

21. The X-ray imaging bed as described in claim 20, characterized in that, The X-ray imaging table includes a film cassette drive mechanism, which drives the film cassette assembly to move at least forward and backward, so that the film cassette assembly has at least two X-ray receiving positions. When the film cassette assembly is in at least two of the X-ray receiving positions, it can receive X-rays passing through the object to be inspected and the bed panel and perform X-ray imaging. The film cassette assembly is mounted on the bed frame, and the film cassette assembly does not move when the bed panel moves relative to the bed frame.

22. The X-ray imaging bed as described in claim 19 or 20, characterized in that, At least one of the positioning prompting mechanisms is a mechanical prompting mechanism, wherein the first positioning structure and the second positioning structure of the mechanical prompting mechanism cooperate to emit a positioning prompting sound to provide the positioning prompt.

23. The X-ray imaging bed as described in claim 19 or 20, characterized in that, At least one of the positioning prompting mechanisms is a mechanical prompting mechanism; the first positioning structure and the second positioning structure of the mechanical prompting mechanism cooperate to increase the resistance to the continued movement of the bed panel and provide the positioning prompt to the operator.

24. The X-ray imaging bed as described in claim 19 or 20, characterized in that, At least one of the positioning prompting mechanisms is a signal prompting mechanism, wherein the first positioning structure and the second positioning structure of the signal prompting mechanism cooperate to generate a position signal, and at least one of the first positioning structure and the second positioning structure includes a positioning prompting device, wherein the positioning prompting device responds to the position signal and generates the positioning prompt at least when the bed panel moves to the target position along the first direction.

25. The X-ray imaging bed as described in any one of claims 19 to 24, characterized in that, The target position is the position where the bed panel moves from a first preset position along the first direction to a position aligned with a second preset position of the bed frame along the first direction.

26. The X-ray imaging bed as described in any one of claims 19 to 24, characterized in that, The X-ray imaging bed also includes a bed panel drive mechanism, which is used to drive the bed panel to move relative to the bed frame at least in a first direction.

27. An X-ray imaging system, characterized in that, It includes a radiation emitter and an X-ray imaging bed as described in any one of claims 1-26.

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