Patient support device for automatically adjusting a treatment position

Abstract

The utility model relates to medical equipment technical field discloses a patient bearing device of automatic adjustment treatment position, including lower support subassembly, lower slide plate subassembly, middle slide plate subassembly and control assembly, and lower support subassembly includes lifting subassembly and the guide pillar in the four -around, and lifting subassembly drives lower slide plate subassembly up and down movement, and lower slide plate subassembly passes through the cooperation of guide structure and guide pillar, and its upper end first drive unit realizes middle slide plate subassembly back and forth movement, and the upper end of middle slide plate subassembly is connected treatment bed through second drive unit, realizes treatment bed left and right movement, and each drive unit is all by control assembly regulation and control, the utility model discloses through lifting subassembly, first drive unit and second drive unit, realize the independent and high accuracy's movement of device on X, Y, Z three axle, make treatment position can be automated adjustment, can effectively solve the problem that traditional patient bearing device relies on manual adjustment and exists low precision, poor efficiency, the problem of insufficient safety.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically to a patient support device that automatically adjusts the treatment position. Background Technology

[0002] In treatment scenarios requiring precise positioning, such as tumor therapy and ultrasound therapy, the accuracy of the patient's treatment position directly affects the treatment outcome and safety. Currently, traditional patient support devices (such as treatment beds) mostly rely on manual adjustment. Medical staff need to adjust the front-to-back, left-to-right, and lifting directions of the treatment bed by mechanical levers or manual pushing, based on the focal position of the treatment equipment (such as ultrasound treatment heads or radiotherapy heads). This is not only cumbersome and time-consuming, but also prone to deviations in treatment position due to human error, which can affect the precise coverage of lesions and may even cause damage to normal tissues due to positional deviations, increasing treatment risks.

[0003] Meanwhile, traditional treatment beds often employ simple slide rails or gear drives for movement, lacking stable guiding mechanisms and precise limit controls. This makes them prone to wobbling and jamming during adjustments, further reducing the accuracy and stability of position adjustments. Furthermore, while some semi-automatic treatment beds can achieve electric adjustment in a single direction, they cannot complete coordinated movement along the X, Y, and Z axes, and lack a unified zero-position calibration and limit travel protection mechanism. When patients get on or off the bed, if the treatment bed is not positioned within the coverage area of ​​the treatment head, collisions and interference between the patient and the treatment head may occur, posing a safety hazard.

[0004] As medical technology advances towards precision and automation, clinicians are placing higher demands on the mobility, operational efficiency, and safety of patient-carrying devices. Current technologies, such as manual adjustments, are inefficient and prone to errors, while semi-automatic devices offer limited functionality and lack coordinated control and safety protection, making them insufficient to meet the needs of modern precision medicine. Summary of the Invention

[0005] The purpose of this invention is to provide a patient support device that automatically adjusts the treatment position. This device is composed of a lower support component, a lower sliding plate component, a middle sliding plate component, and a control component, which enables the treatment position to be automatically adjusted. This effectively solves the problems of low precision, poor efficiency, and insufficient safety of traditional patient support devices that rely on manual adjustment.

[0006] This utility model is achieved through the following technical solution: A patient support device that automatically adjusts the treatment position includes: The lower support assembly includes a lifting assembly and guide columns located around the lifting assembly, the output end of the lifting assembly reciprocating up and down; A lower slide plate assembly, the lower end of which is connected to the output end of the lifting assembly and is provided with a guide structure matching the guide post, and the upper end of which is provided with a first driving unit that reciprocates back and forth; A middle slide plate assembly, the lower end of which is connected to the output end of the first driving unit, and the upper end of which is connected to a treatment bed through a second driving unit, wherein the output end of the second driving unit reciprocates left and right; A control assembly, wherein the lifting assembly, the first driving unit and the second driving unit are all electrically connected to the control assembly.

[0007] In the present solution, the device realizes stable driving in the Z-axis (up-down) direction by means of the lifting assembly cooperating with the surrounding guide posts and the guide structure, the first driving unit drives the middle slide plate assembly to move accurately in the front-back direction, and the second driving unit drives the treatment bed to adjust stably in the left-right direction. The three-axis independent and cooperative automatic driving structure replaces the traditional manual pushing or mechanical rocker operation, greatly reduces manual operation errors, ensures that the treatment bed can be accurately moved to a position matching the focus of a treatment head or a lesion, improves treatment positioning accuracy, and reduces the risk of normal tissue damage caused by position deviation; in addition, the control assembly can centrally control the lifting assembly, the first driving unit and the second driving unit, so that the treatment bed can be adjusted to a safe position avoiding the treatment head before treatment for patients to get on the bed conveniently, and can be quickly moved to the treatment position during treatment, which significantly shortens the position adjustment time, reduces the operation burden of medical staff, and improves the efficiency of the treatment process; meanwhile, the guide posts and guide structures around the lifting assembly, the transmission guide component corresponding to the first driving unit, and the support guide structure matched with the second driving unit jointly guarantee the stability of the movement process in all directions, avoid the problems of shaking and jamming when the traditional device moves, and the overall structural design takes into account the requirements of automatic operation and safety protection, and prolongs the service life of the device while improving the convenience and accuracy of treatment.

[0008] As a further solution of the patient carrying device, in order to further improve the movement accuracy in the Z-axis direction and ensure that the lower slide plate assembly, the upper middle slide plate assembly and the treatment bed can move up and down stably and accurately along with the lifting assembly, the lifting assembly comprises a motor component, a synchronous belt, a screw lift, a Z-axis screw and a Z-axis screw nut; The motor component drives the screw lift to operate through the synchronous belt, the screw lift is in transmission connection with the Z-axis screw to drive the Z-axis screw to rotate, the Z-axis screw is in threaded fit with the Z-axis screw nut, and the Z-axis screw nut forms the output end of the lifting assembly and is fixedly connected with the lower end of the lower slide plate assembly.

[0009] As a further embodiment of the patient-carrying device, the guide structure includes a guide sleeve, which is fitted around the outside of the guide post and slides in cooperation with the guide post. This can directly and rigidly limit the movement trajectory of the lower sliding plate assembly, effectively preventing problems such as lateral displacement or tilting of the lower sliding plate assembly due to uneven force or equipment vibration during its up-and-down movement with the lifting assembly. This ensures that the lower sliding plate assembly always moves smoothly along the preset Z-axis direction, thereby guaranteeing the stability of the upper middle sliding plate assembly and the position of the treatment bed. The guide post is vertically fixed to the support base plate of the lower support assembly, and the upper end of the guide post is connected and fixed by a fixing plate.

[0010] As a further solution for the patient-carrying device, to improve the positional accuracy of the forward and backward movement of the central sliding plate assembly and ensure the overall positioning accuracy when the treatment bed is subsequently adjusted along the X and Z axes, the first drive unit includes a Y-axis motor, a Y-axis synchronous belt, and a Y-axis ball screw assembly. The Y-axis motor is fixed to the Z-axis moving frame of the lower sliding plate assembly. The Y-axis motor drives the screw of the Y-axis ball screw assembly to rotate through the Y-axis synchronous belt. The nut of the Y-axis ball screw assembly is fixedly connected to the lower end of the central sliding plate assembly, forming the output end of the first drive unit to drive the central sliding plate assembly to reciprocate in the forward and backward direction.

[0011] As a further embodiment of the patient support device, the top two sides of the Z-axis moving frame are provided with Y-axis sliders, and the bottom of the X-axis moving frame of the central sliding plate assembly is provided with a Y-axis guide rail that matches the Y-axis slider. The Y-axis guide rail and the Y-axis slider slide together to form an auxiliary guiding structure for the central sliding plate assembly to move in the front-back direction, thereby constraining the movement trajectory of the central sliding plate assembly and effectively avoiding problems such as offset, tilting or shaking caused by uneven force, equipment vibration or long-term use during the movement of the central sliding plate assembly, ensuring that the central sliding plate assembly always moves smoothly in the preset front-back direction.

[0012] As a further solution for the patient-bearing device, to ensure the positional accuracy of the treatment bed when moving in the left and right directions and to meet the needs of fine adjustment of the patient-bearing position in clinical treatment, the second drive unit includes an X-axis motor and an X-axis ball screw pair. The X-axis motor is fixed on the X-axis moving frame of the central slide plate assembly. The X-axis motor is connected to the screw drive of the X-axis ball screw pair to drive its rotation. The nut of the X-axis ball screw pair is fixedly connected to the bed support frame of the treatment bed, forming the output end of the second drive unit to drive the treatment bed to reciprocate in the left and right directions.

[0013] As a further embodiment of the patient-carrying device, the X-axis moving frame is equipped with an X-axis slider, and the bottom of the bed support frame is equipped with an X-axis guide rail that matches the X-axis slider. The X-axis guide rail and the X-axis slider slide together, which can rigidly constrain the movement trajectory of the treatment bed, effectively avoiding problems such as up-and-down bumping, left-and-right deviation or tilting caused by the weight of the patient, vibration of the equipment during operation or uneven force during the drive process. This ensures that the treatment bed always moves smoothly in the preset left-right direction. In addition, the X-axis slider is provided in multiple sets and symmetrically distributed, which can evenly distribute the load of the treatment bed and the patient to the mating surfaces of each set of sliders and guide rails.

[0014] As a further embodiment of the patient-carrying device, in order to avoid collisions with surrounding components or exceeding the effective treatment range during the movement of the treatment bed, the lower support assembly also includes a Z-axis limiting device, the lower sliding plate assembly is provided with a Y-axis limiting device, and the middle sliding plate assembly is provided with an X-axis limiting device; The Z-axis limiting device is equipped with multiple sets of first limit switches, which are electrically connected to the output end of the lifting assembly. The Y-axis limiting device is equipped with multiple sets of second limit switches, which are electrically connected to the output end of the first drive unit. The X-axis limiting device is equipped with multiple sets of third limit switches, which are electrically connected to the output end of the second drive unit.

[0015] As a further solution for the patient support device, in order to further ensure the smooth movement of each component of the device and reduce the risk of mechanical failure caused by cable interference, the lower support assembly also includes a cable chain assembly. The cable chain assembly includes a cable chain fixing bracket and a cable chain for storing the device's cables. The cable chain fixing bracket is fixed to the support base plate of the lower support assembly. One end of the cable chain is connected to the cable chain fixing bracket, and the other end is connected to the Z-axis moving frame of the lower slide plate assembly.

[0016] As a further solution for the patient carrying device, to further improve the treatment positioning accuracy, the control component includes a handheld controller. The handheld controller is electrically connected to the first limit switch, the second limit switch, and the third limit switch. The handheld controller sends independent or coordinated movement signals to the lifting component, the first drive unit, and the second drive unit to control each component to move to the target position along a preset direction.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects: This invention enables the device to move independently and with high precision along the X, Y, and Z axes through a lifting assembly, a first drive unit, and a second drive unit. The Z-axis relies on the lifting assembly and surrounding guide columns to ensure smooth lifting. The Y-axis is controlled by the first drive unit to offset forward and backward, and the X-axis is controlled by the second drive unit to offset left and right. This allows the device to precisely align the treatment head focal point with the lesion location in space, reducing the risk of damage to normal tissues caused by positioning deviations and providing reliable equipment support for precision treatment. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the lower support component structure of this utility model; Figure 3 This is a schematic diagram of the sliding plate assembly structure of this utility model; Figure 4 This is a schematic diagram of the central sliding plate assembly of this utility model.

[0019] The attached diagram shows the markings and corresponding component names: 1-Lower support assembly, 1-1-Support base plate, 1-2-Guide column lower base, 1-3-Guide column, 1-4-Z-axis limiting device, 1-5-Fixing plate, 1-6-Screw support plate, 1-7-Screw fixing seat, 1-8-Z-axis screw, 1-9-Drag chain, 1-10-Drag chain fixing bracket, 1-11-Screw jack, 1-12-Z-axis screw nut, 1-13-Synchronous belt, 1-14-Motor components; 2- Lower slide plate assembly, 2-1- Z-axis moving frame, 2-2- Guide sleeve, 2-3- Y-axis slider, 2-4- Y-axis guide rail, 2-5- Y-axis motor, 2-6- Y-axis synchronous belt, 2-7- Y-axis ball screw pair, 2-8- Y-axis limiting device; 3-Middle slide plate assembly, 3-1-X-axis moving frame, 3-2-X-axis slider, 3-3-X-axis motor, 3-4-X-axis ball screw pair, 3-5-X-axis limiting device, 3-6-X-axis guide rail, 3-7-Bed support frame; 4-Treatment bed. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model. Example 1

[0021] This embodiment 1 provides a patient support device that automatically adjusts the treatment position, such as... Figure 1 As shown, it includes a lower support assembly 1, a lower slide assembly 2, a middle slide assembly 3, and a control assembly; Among them, such as Figure 1 and Figure 2 As shown, the lower support assembly 1 is the basic load-bearing structure of the device, including a support base plate 1-1, a lifting assembly, guide columns 1-3, and a fixing plate 1-5. The support base plate 1-1 is a high-strength flat plate structure, which is placed horizontally on the ground and serves as the installation reference for all components of the entire device. Guide column lower bases 1-2 are fixedly installed at the four corners of the upper surface of the support plate 1-1 by bolts. A guide column 1-3 is vertically embedded in the center of each guide column lower base 1-2. The guide column 1-3 is a cylindrical rigid structure, and its upper end is connected to the fixing plate 1-5 by screws and washers to form a rectangular support frame.

[0022] Please also refer to Figure 2 The lifting assembly is installed outside the aforementioned rectangular support frame. Specifically, the lifting assembly is connected to the support base plate 1-1 and includes a motor component 1-14 (including a servo motor and reducer), a synchronous belt 1-13, a screw jack 1-11, a Z-axis screw 1-8, and a Z-axis screw nut 1-12. The motor component 1-14 is fixed to the support base plate 1-1, and its output shaft is connected to the input shaft of the screw jack 1-11 via the synchronous belt 1-13. The output end of the screw jack 1-11 is coaxially fixed with the Z-axis screw 1-8. The lower end of the Z-axis screw is also threadedly engaged with the Z-axis screw nut 1-12, and the upper end of the Z-axis screw... The lead screw support plate 1-6 and the lead screw fixing seat 1-7 are movably connected to the fixing plate 1-5. The lead screw support plate 1-6 and the lead screw fixing seat 1-7 together provide radial support for the Z-axis lead screw 1-8, ensuring that there is no offset or sway during its rotation. When the motor component 1-14 is running, the synchronous belt 1-13 drives the lead screw jack 1-11 to drive the Z-axis lead screw 1-8 to rotate, so that the Z-axis lead screw nut 1-12 moves linearly along the Z-axis (up and down direction). The Z-axis lead screw nut 1-12 is fixedly connected to the Z-axis moving frame 2-1 of the lower slide plate assembly 2 to form the output end of the lifting assembly, realizing the lifting of the lower slide plate assembly 2 in the Z-axis direction.

[0023] Among them, such as Figure 1 and Figure 3As shown, the aforementioned lower sliding plate assembly 2 connects the lower support assembly 1 and the middle sliding plate assembly 3. It includes a Z-axis moving frame 2-1 and a first drive unit. Specifically, the Z-axis moving frame 2-1 is a rectangular frame structure. As mentioned above, the center of its lower end face is bolted to the Z-axis lead screw nut 1-12 and rises and falls synchronously with the Z-axis lead screw nut 1-12. Guide sleeves 2-2 are respectively embedded at the four corners of the Z-axis moving frame 2-1. The guide sleeves 2-2 are made of wear-resistant nylon, tin bronze, or sliding bearings, etc., and have lubrication grooves on their inner walls. They are clearance-fitted with the guide post 1-3 to form a guiding structure. When the Z-axis moving frame 2-1 rises and falls, the guide sleeves 2-2 slide along the guide post 1-3 to form a rigid guiding constraint, effectively preventing the Z-axis moving frame 2-1 from shifting laterally or tilting.

[0024] Meanwhile, support plates are symmetrically welded to the top two sides of the Z-axis moving frame 2-1. Two Y-axis sliders 2-3 are fixedly installed on each support plate by bolts. The upper surface of the Y-axis slider 2-3 is provided with a dovetail groove, which slides with the Y-axis guide rail 2-4 of the middle slide plate assembly 3 to form an auxiliary guide structure in the Y-axis direction. The first drive unit is connected to the top of the Z-axis moving frame 2-1 and located between the support plates. Its output end is in the same direction as the Y-axis and connected to the middle slide plate assembly 3. When the first drive unit is running, it can drive the middle slide plate assembly 3 to slide back and forth along the Y-axis guide rail 2-4. Specifically, the first drive unit includes a Y-axis motor 2-5, a Y-axis synchronous belt 2-6, and a Y-axis ball screw assembly 2-7. The Y-axis motor 2-5 is mounted on a connecting plate in the middle of the Z-axis moving frame 2-1. This Y-axis motor 2-5 is a servo motor, and its output shaft is fitted with a drive guide wheel. It is connected to the driven guide wheel at one end of the Y-axis ball screw assembly 2-7 via the Y-axis synchronous belt 2-6. Both ends of the Y-axis ball screw assembly 2-7 are horizontally mounted on the top support plate of the Z-axis moving frame 2-1 via bearing seats. Nuts are threaded onto the screw, and these nuts are fixedly connected to the X-axis moving frame 3-1 of the central sliding plate assembly 3, forming the output end of the first drive unit. When the Y-axis motor 2-5 operates, it drives the screw of the Y-axis ball screw assembly 2-7 to rotate via the Y-axis synchronous belt 2-6, thereby causing the nut and the central sliding plate assembly 3 to reciprocate along the Y-axis direction.

[0025] Among them, such as Figure 1 and Figure 4As shown, the aforementioned middle sliding plate assembly 3 is used to connect the lower sliding plate assembly 2 and the treatment bed 4, including an X-axis moving frame 3-1, an X-axis slider 3-2, and a second drive unit. The X-axis moving frame 3-1 is a rectangular load-bearing frame, with Y-axis guide rails 2-4 fixedly installed on both sides of its bottom by bolts. The Y-axis guide rails 2-4 slide in cooperation with the Y-axis sliders 2-3 of the lower sliding plate assembly 2, realizing the smooth movement of the X-axis moving frame 3-1 along the Y-axis direction. A connecting plate is welded to the top center of the X-axis moving frame 3-1. Three sets of X-axis sliders 3-2 are fixedly installed on the connecting plate by bolts, each set containing two X-axis sliders 3-2. The six X-axis sliders 3-2 are symmetrically distributed on both sides of the connecting plate. Each X-axis slider 3-2 has an opening that connects to the X-axis guide rails 3-6. The matching slide rails and X-axis guide rails 3-6 are fixed to the support plate below the bed support frame 3-7, forming a sliding guide structure in the X-axis direction; while the second drive unit is connected to the top of the X-axis moving frame 3-1 and located between the X-axis guide rails 3-6. Its output end is in the same direction as the X-axis and connected to the bed support frame 3-7. When the second drive unit is running, it can drive the bed support frame 3-7 to slide back and forth along the X-axis guide rail 3-6.

[0026] Specifically, such as Figure 4 As shown, the second drive unit includes an X-axis motor 3-3 and an X-axis ball screw assembly 3-4. The X-axis motor 3-3 is fixed to one end of the X-axis moving frame 3-1 and is a servo motor. Its output shaft is connected to one end of the lead screw of the X-axis ball screw assembly 3-4 via a coupling. The other end of the X-axis ball screw assembly 3-4 is mounted to the other end of the X-axis moving frame 3-1 via a bearing seat. A nut threaded onto the lead screw is fixedly connected to the bed support frame 3-7, forming the output end of the second drive unit. When the X-axis motor 3-3 operates, it directly drives the lead screw of the X-axis ball screw assembly 3-4 to rotate, causing the bed support frame 3-7 to reciprocate left and right along the X-axis direction.

[0027] In this embodiment, the treatment bed 4 includes a bed board and a bed support frame 3-7. The bed board is made of medical-grade ABS material with a non-slip and antibacterial surface treatment. The bed support frame 3-7 is a welded steel structure, with its bottom support plate fixedly connected to the X-axis guide rail 3-6 to support the bed board and the patient. It moves synchronously along the X-axis direction with the X-axis guide rail 3-6. The length and width of the bed board are designed to accommodate the lying needs of patients of different body types, ensuring patient stability. The control components include a TPS software system and a handheld controller. The TPS software system is installed on the control device and has X, Y, and Z axis movement parameter settings. The handheld controller is a wireless and portable design, electrically connected to each motor component. Medical staff can send movement signals through the handheld controller to control the independent or coordinated action of each drive unit, realizing the adjustment of the treatment bed 4 to any position in space. Example 2

[0028] To further improve the accuracy of treatment positioning, this embodiment 2 provides a patient support device that automatically adjusts the treatment position based on embodiment 1, such as... Figures 2-4 As shown, the lower support assembly 1 in this embodiment also includes a Z-axis limiting device 1-4, the lower slide assembly 2 also includes a Y-axis limiting device 2-8, and the middle slide assembly 3 also includes an X-axis limiting device 3-5. Furthermore, the Z-axis limiting device 1-4, the Y-axis limiting device 2-8, and the X-axis limiting device 3-5 are all electrically connected to the control assembly.

[0029] Specifically, such as Figure 2 As shown, the Z-axis limiting device 1-4 is fixed to the support base plate 1-1 by a bracket and is located on one side of the guide column 1-3. It integrates a Z-axis origin switch, a +Z limit switch, and a -Z limit switch, all using high-precision photoelectric sensors and electrically connected to the motor component 1-14. This is used to achieve Z-axis zero-position calibration and limit stroke protection. When the device is powered on and returns to zero, the Z-axis moving frame 2-1 drives the detection element to trigger the Z-axis origin switch. At this time, the control component records this position as the Z-axis zero position. When the Z-axis moving frame 2-1 rises to its maximum stroke, the +Z limit switch is triggered, and the motor component 1-14 immediately stops operating. Similarly, when it descends to its minimum stroke, the -Z limit switch activates to prevent overtravel and potential component collision.

[0030] Specifically, such as Figure 3 As shown, the Y-axis limiting device 2-8 is fixed on the connecting plate of the Z-axis moving frame 2-1 and electrically connected to the Y-axis motor 2-5. It integrates a Y-axis origin switch, a +Y-axis limit switch, and a -Y-axis limit switch. It adopts a combination design of mechanical limit switch and photoelectric sensor, which can not only achieve precise calibration of Y-axis zero position, but also cut off the power of Y-axis motor 2-5 in time when the middle slide plate assembly 3 moves to the front and rear limit positions, thus avoiding structural interference.

[0031] Specifically, such as Figure 4 As shown, the X-axis limiting device 3-5 is installed on the X-axis moving frame 3-1 on one side of the X-axis ball screw pair 3-4 and is electrically connected to the X-axis motor 3-3. It integrates an X-axis origin switch, a +X-axis limit switch and a -X-axis limit switch to realize X-axis zero-position calibration and limit stroke protection, ensuring that the bed support frame 3-7 does not collide with surrounding components during movement.

[0032] Working Principle: After the device is powered on, the X, Y, and Z axis zeroing operation is first performed through the mobile interface of the TPS software system on the control device. The system controls the operation of each axis motor to locate the origin switch on the X-axis limit device 3-5, Y-axis limit device 2-8, and Z-axis limit device 1-4 respectively. After finding the zero position, the X, Y, and Z axis coordinate positions displayed on the mobile interface are zero, completing the initialization calibration. Medical staff send signals to each axis drive unit through the handheld controller, controlling the Z-axis moving frame 2-1 to move downward along the guide post 1-3 to the -Z limit position, driving the X-axis moving frame 3-1 in the Y-axis direction to the +Y limit position, and driving the bed support frame 3-7 in the X-axis direction to the +X limit position. At this time, the treatment bed 4 is in a safe position that avoids the coverage area of ​​the treatment head, and the patient can smoothly climb onto the treatment bed 4 and lie flat. After the patient's position is fixed, medical staff send a coordinated movement signal again via a handheld controller, controlling the X, Y, and Z axis drive units to move the treatment bed 4 precisely to the preset treatment position below the treatment head. During the movement, the cooperation of the guide rails and lead screws ensures smooth, wobbly motion. If fine-tuning is needed during treatment, a single axis can be moved within a small range using the handheld controller until the optimal treatment effect is achieved. After treatment, the handheld controller returns each axis to its initial safe position, allowing the patient to get off the bed, completing a single treatment session.

[0033] In other embodiments, to prevent cables from scattering, tangling, or being damaged by pulling, and to ensure the stability of cable transmission, a drag chain fixing bracket 1-10 is fixedly installed on the support base plate 1-1 near the guide post 1-3. A drag chain 1-9 is snapped onto the drag chain fixing bracket 1-10. The other end of the drag chain 1-9 is fixedly connected to the lower end face of the Z-axis moving frame 2-1. The drag chain 1-9 is used to store the power cable, control cable, and signal cable of the device. When the Z-axis moving frame 2-1 moves up and down, the drag chain 1-9 expands and contracts synchronously.

[0034] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A patient support device that automatically adjusts the treatment position, characterized in that, include: The lower support assembly (1) includes a lifting assembly and guide columns (1-3) located around the lifting assembly. The output end of the lifting assembly reciprocates up and down. The lower slide assembly (2) has its lower end connected to the output end of the lifting assembly and is provided with a guide structure that matches the guide post (1-3), and its upper end is provided with a first drive unit that reciprocates back and forth. The middle sliding plate assembly (3) has its lower end connected to the output end of the first drive unit and its upper end connected to the treatment bed (4) through the second drive unit. The output end of the second drive unit moves back and forth left and right. The control component, the lifting component, the first drive unit and the second drive unit are all electrically connected to the control component.

2. The patient support device for automatically adjusting the treatment position according to claim 1, characterized in that, The lifting assembly includes a motor component (1-14), a synchronous belt (1-13), a screw jack (1-11), a Z-axis screw (1-8), and a Z-axis screw nut (1-12). The motor component (1-14) drives the screw jack (1-11) to operate via the synchronous belt (1-13). The screw jack (1-11) is connected to the Z-axis screw (1-8) to drive its rotation. The Z-axis screw (1-8) is threadedly engaged with the Z-axis screw nut (1-12). The Z-axis screw nut (1-12) constitutes the output end of the lifting assembly and is fixedly connected to the lower end of the slide plate assembly (2).

3. The patient support device for automatically adjusting the treatment position according to claim 1, characterized in that, The guide structure includes a guide sleeve (2-2), which is sleeved on the outside of the guide post (1-3) and slides in cooperation with the guide post (1-3); The guide post (1-3) is vertically fixed on the support base plate (1-1) of the lower support assembly (1), and the upper end of the guide post (1-3) is connected and fixed by a fixing plate (1-5).

4. The patient support device for automatically adjusting the treatment position according to claim 1, characterized in that, The first drive unit includes a Y-axis motor (2-5), a Y-axis synchronous belt (2-6), and a Y-axis ball screw pair (2-7). The Y-axis motor (2-5) is fixed on the Z-axis moving frame (2-1) of the lower slide assembly (2). The Y-axis motor (2-5) drives the screw of the Y-axis ball screw pair (2-7) to rotate through the Y-axis synchronous belt (2-6). The nut of the Y-axis ball screw pair (2-7) is fixedly connected to the lower end of the middle slide assembly (3), forming the output end of the first drive unit to drive the middle slide assembly (3) to reciprocate in the front-back direction.

5. The patient support device for automatically adjusting the treatment position according to claim 4, characterized in that, The Z-axis moving frame (2-1) is provided with Y-axis sliders (2-3) on both sides of the top. The bottom of the X-axis moving frame (3-1) of the middle sliding plate assembly (3) is provided with a Y-axis guide rail (2-4) that matches the Y-axis slider (2-3). The Y-axis guide rail (2-4) and the Y-axis slider (2-3) slide together to form an auxiliary guide structure for the middle sliding plate assembly (3) to move in the front-back direction.

6. The patient support device for automatically adjusting the treatment position according to claim 1, characterized in that, The second drive unit includes an X-axis motor (3-3) and an X-axis ball screw pair (3-4). The X-axis motor (3-3) is fixed on the X-axis moving frame (3-1) of the central slide plate assembly (3). The X-axis motor (3-3) is connected to the screw drive of the X-axis ball screw pair (3-4) to drive it to rotate. The nut of the X-axis ball screw pair (3-4) is fixedly connected to the bed support frame (3-7) of the treatment bed (4), forming the output end of the second drive unit to drive the treatment bed (4) to reciprocate in the left and right direction.

7. A patient support device for automatically adjusting the treatment position according to claim 6, characterized in that, The X-axis moving frame (3-1) is provided with an X-axis slider (3-2), and the bottom of the bed support frame (3-7) is provided with an X-axis guide rail (3-6) that matches the X-axis slider (3-2). The X-axis guide rail (3-6) slides with the X-axis slider (3-2), and the X-axis slider (3-2) is provided with multiple sets and symmetrically distributed to form a stable guiding structure for the treatment bed (4) to move in the left and right directions.

8. A patient support device for automatically adjusting treatment position according to any one of claims 1-7, characterized in that, The lower support assembly (1) also includes a Z-axis limiting device (1-4), the lower slide assembly (2) is provided with a Y-axis limiting device (2-8), and the middle slide assembly (3) is provided with an X-axis limiting device (3-5). The Z-axis limiting device (1-4) is provided with multiple sets of first limit switches, which are electrically connected to the output end of the lifting assembly. The Y-axis limiting device (2-8) is provided with multiple sets of second limit switches, which are electrically connected to the output end of the first drive unit. The X-axis limiting device (3-5) is provided with multiple sets of third limit switches, which are electrically connected to the output end of the second drive unit.

9. A patient support device for automatically adjusting the treatment position according to claim 8, characterized in that, The lower support assembly (1) further includes a cable chain assembly, which includes a cable chain fixing bracket (1-10) and a cable chain (1-9) for storing the cable of the device. The cable chain fixing bracket (1-10) is fixed on the support base plate (1-1) of the lower support assembly (1). One end of the cable chain (1-9) is connected to the cable chain fixing bracket (1-10), and the other end is connected to the Z-axis moving frame (2-1) of the lower slide assembly (2).

10. A patient support device for automatically adjusting the treatment position according to claim 8, characterized in that, The control component includes a handheld controller, which is electrically connected to the first limit switch, the second limit switch and the third limit switch. The handheld controller sends independent or coordinated movement signals to the lifting component, the first drive unit and the second drive unit to control each component to move to the target position along a preset direction.

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