An auxiliary diagnostic device for medical radiology

By installing pressure sensors and conveyor belts on the radiology examination table, the automatic laying and recycling of disposable medical sheets is achieved, solving the problems of low replacement efficiency and cross-contamination in existing technologies, and improving operational efficiency and hygiene and safety.

CN122376145APending Publication Date: 2026-07-14FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA
Filing Date
2026-05-29
Publication Date
2026-07-14

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Abstract

This invention relates to the field of medical devices, specifically to an auxiliary diagnostic device for medical radiology. The device includes a support frame, a bed board fixedly connected to the top of the support frame, and several annular grooves on the side walls of the bed board. Fixed seats are symmetrically fixedly connected to both ends of the bed board, and transmission rods are rotatably engaged between adjacent fixed seats. A driving component is fixedly connected to one of the fixed seats, and the output shaft of the driving component is coaxially fixedly connected to one of the transmission rods. Gears are symmetrically and coaxially fixedly connected to each transmission rod, and a conveyor belt is sleeved between adjacent gears. Each conveyor belt slides in engagement with its adjacent groove, and several suction cups are fixedly connected to the outer side of the conveyor belt. This invention uses a pressure sensor to determine the occupancy status of the bed board and uses the conveyor belt and suction cups to move, transfer, and collect disposable medical sheets on the bed board surface, solving the problems of low sheet replacement efficiency and cross-contamination during radiological examinations.
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Description

Technical Field

[0001] This invention relates to the field of medical devices, and more specifically to an auxiliary diagnostic device for medical radiology. Background Technology

[0002] Medical radiology-assisted diagnostic equipment, as an important component of medical imaging examinations, is widely used in hospital radiology departments and related examination scenarios. During radiological examinations, patients typically lie on an examination bed to complete positioning, imaging, or auxiliary diagnostic procedures, and the bed surface comes into frequent contact with different patients.

[0003] In the existing technology, most radiology examination beds are used by using a fixed bed board and manually laying disposable medical sheets. Before the patient's examination, the medical staff lays the sheets on the bed surface. After the examination is completed and the patient gets off the bed, the medical staff removes and collects the used sheets and lays new sheets to maintain the cleanliness of the bed surface and meet the needs of subsequent patients.

[0004] However, in actual use of the aforementioned radiological examination tables, the timing of replacing disposable medical sheets mainly relies on manual observation, which can easily lead to situations where medical staff fail to replace them promptly. Furthermore, the removal and re-laying of used sheets involves frequent contact with the bed surface and personnel, increasing the risk of cross-contamination. Therefore, it is necessary to propose an auxiliary diagnostic device for medical radiology. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an auxiliary diagnostic device for medical radiology, which uses a pressure sensor to determine the occupancy status of a bed board, drives a conveyor belt to use suction cups to lay, move, and collect disposable medical sheets on the bed board surface, and solves the problems of low sheet replacement efficiency and easy cross-contamination during radiological examinations.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A medical radiological auxiliary diagnostic device includes a support and a controller. A bed board is fixedly connected to the top of the support, and the controller is embedded inside the bed board. Several annular sliding grooves are opened on the side wall of the bed board. Fixed seats are symmetrically fixedly connected to both ends of the bed board, and transmission rods are rotatably engaged between adjacent fixed seats. A driving component is fixedly connected to one of the fixed seats, and the output shaft of the driving component is coaxially fixedly connected to one of the transmission rods. The controller is used to control the rotation of the output shaft of the driving component. Gears are symmetrically and coaxially fixedly connected to each of the transmission rods. A conveyor belt is sleeved between adjacent gears, and the conveyor belts are slidably engaged with their adjacent sliding grooves. Several suction cups are fixedly connected to the outside of the conveyor belts. A replenishment component for replenishing disposable medical sheets is provided below the bed board, and a recycling component for recycling disposable medical sheets is provided on the side wall of the support. Several pressure sensors are embedded in the bed board, and the controller is used to receive pressure value signals sent by the pressure sensors and control the operation of the driving component and electric push rod based on the pressure value signals.

[0007] The technical principles of the above solution are as follows: During use, pressure sensors collect real-time data on the pressure applied to the bed surface and transmit the signal to the controller. The controller determines whether the patient needs to get off the bed based on signal changes. When it is determined that the sheet needs to be changed, the controller activates the drive mechanism, which rotates the transmission rod and drives the conveyor belt to move in a circular motion along the chute. The working section of the conveyor belt above the bed moves the already laid sheets towards the collection assembly, where used sheets are collected. Simultaneously, a replenishment assembly supplies new sheets to the conveyor belt, which then replenishes the bed surface with new sheets.

[0008] The above approach has the following beneficial effects: This solution uses conveyor belts on both sides of the bed board, along with replenishment and recycling components, to form an automated path for replacing disposable medical sheets. This allows for the removal of used sheets and the placement of new sheets after the patient's examination, reducing the need for manual replacement by medical staff.

[0009] This design places the conveyor belt in an annular groove on the side wall of the bed board, which allows the sheets to be moved more smoothly on the bed board surface, making it less likely for them to shift, stack, or roll back, thus helping to maintain the flatness of the patient when lying down.

[0010] This solution incorporates a pressure sensor within the bed board, enabling real-time monitoring of the bed board's pressure status. This provides a basis for determining when to replace disposable medical sheets, preventing accidental replacements while the patient is still undergoing examination. It also addresses the issue of sheets not being replaced promptly after patient use, which is common with manual handling.

[0011] Furthermore, the inner wall of the replenishment box is vertically provided with a guide groove, and the side wall of the horizontal plate is fixedly connected with a guide block that slides in cooperation with the guide groove.

[0012] Beneficial effects: By setting the guide groove and guide block to slide together, the horizontal plate can be raised and lowered smoothly under the drive of the electric push rod, avoiding the disposable medical pad from tilting or getting stuck during the pushing process.

[0013] Furthermore, the resupply assembly includes a resupply box, the side wall of which is detachably connected to the side wall of the support, an electric push rod fixedly connected to the bottom wall of the resupply box, a push rod fixedly connected to the output shaft of the electric push rod, a horizontal plate fixedly connected to the other end of the push rod, the horizontal plate slidingly engaging with the inner wall of the resupply box, and a controller for controlling the extension and retraction of the output shaft of the electric push rod.

[0014] Beneficial effects: Spare sheets are centrally stored in a removable replenishment box, and then the sheets are pushed to the bottom of the conveyor belt by an electric push rod and a cross plate for adsorption, improving the turnover efficiency of the bed surface.

[0015] Furthermore, the side wall of the replenishment box has an opening, and a baffle is hinged to the side wall of the opening.

[0016] Beneficial effects: The combination of the opening and the baffle makes it easy to load disposable medical sheets into the replenishment box from the side. At the same time, the baffle can shield the inside of the replenishment box after it is closed, reducing the possibility of the spare sheets being contaminated by dust or external contact during storage.

[0017] Furthermore, the recycling assembly includes a recycling box, the side wall of which is detachably connected to the side of the bracket away from the baffle, and a scraper assembly for removing the used disposable medical pad is provided on top of the recycling box.

[0018] Beneficial effects: The used sheets are collected in a recycling box and then easily removed for cleaning using a detachable connection. This allows for the centralized collection of waste sheets after radiological examinations at the bedside, reducing scattering and secondary contact, and facilitating subsequent unified handling by medical staff.

[0019] Furthermore, the scraper assembly includes several scrapers, all of which are fixedly connected to the side wall of the bracket.

[0020] Beneficial effect: The scraper is located on the sheet recycling path and can gradually scrape off the used sheets attached to the surface of the conveyor belt while the conveyor belt is running, making it easier for the sheets to leave the conveyor belt and fall into the recycling box.

[0021] Furthermore, the inner side of the conveyor belt is fixedly connected with a rack structure that meshes with the gears.

[0022] Beneficial effects: By using a rack and pinion structure fixed inside the conveyor belt and meshing with the transmission rod, synchronous drive of the conveyor belt can be achieved, effectively preventing slippage during operation and ensuring more accurate displacement control for pad replenishment and recovery.

[0023] Furthermore, the pressure sensors are arranged in an array along the length of the bed plate.

[0024] Beneficial effects: By using arrayed pressure sensors to obtain the pressure conditions at different positions on the bed board, it is possible to more accurately determine whether the patient is still on the bed board surface. The controller then uses this information to link with the drive components and electric push rods, which helps to automatically complete the bed sheet replacement at the appropriate time.

[0025] Furthermore, a limiting groove is opened at the top of the horizontal plate. The width of the limiting groove is adapted to the width of the disposable medical pad, and the upper surface of the disposable medical pad in the limiting groove contacts the suction cup on the conveyor belt.

[0026] Beneficial effects: After setting a limiting groove at the top of the horizontal plate that matches the width of the pad, the edge of the pad can be constrained when the supply component pushes the pad upward, reducing lateral movement or corner skew in the stacked state of the pad, thereby ensuring that the outer surface of the pad is stably adsorbed by the suction cup.

[0027] Furthermore, an ultraviolet disinfection lamp is fixedly connected to the inner wall of the recycling box, and a controller is used to control the opening and closing of the ultraviolet disinfection lamp.

[0028] Beneficial effects: Irradiating the used sheets and the internal space of the recycling box with ultraviolet disinfection lamps can reduce the risk of microbial attachment and spread during the temporary storage stage and help improve the hygiene conditions of the device. Attached Figure Description

[0029] Figure 1 This is a front view of the auxiliary diagnostic device for medical radiology according to the present invention; Figure 2 This is a rear view of the auxiliary diagnostic device for medical radiology according to the present invention; Figure 3 This is a cross-sectional view of the auxiliary diagnostic device for medical radiology according to the present invention; Figure 4 This is an isometric view of the conveyor belt of the auxiliary diagnostic device for medical radiology of the present invention.

[0030] The reference numerals in the accompanying drawings include: 1. Bracket; 2. Replenishment box; 3. Bed board; 4. Slide rail; 5. Conveyor belt; 6. Drive unit; 7. Transmission rod; 8. Fixed base; 9. Baffle; 10. Cross plate; 11. Suction cup; 12. Scraper; 13. Recycling box; 14. Electric push rod; 15. Push rod Detailed Implementation

[0031] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] The following detailed description illustrates the specific implementation method: Example 1:

[0035] like Figure 1 As shown, an auxiliary diagnostic device for medical radiology includes a support 1 and a controller. A bed board 3 is bolted to the top of the support 1, and the controller is embedded inside the bed board 3. Several annular grooves 4 are opened on the side wall of the bed board 3.

[0036] like Figure 1 As shown, the bed board 3 has fixed seats 8 symmetrically fixed at both ends by bolts. Transmission rods 7 are rotatably connected between adjacent fixed seats 8. A drive component 6 is fixedly connected to one of the fixed seats 8 by bolts. The output shaft of the drive component 6 is coaxially fixedly connected to one of the transmission rods 7 by bolts. The controller is used to control the rotation of the output shaft of the drive component 6. In this embodiment, the drive component is a motor.

[0037] Gears are symmetrically and coaxially fixedly connected to each transmission rod 7. A conveyor belt 5 is sleeved between adjacent gears. A rack structure that meshes with the gear is bonded to the inner side of each conveyor belt 5. Each conveyor belt 5 slides in cooperation with its adjacent slide groove 4.

[0038] like Figure 4 As shown, several suction cups 11 are attached to the outer side of the conveyor belt 5.

[0039] like Figure 1As shown, a replenishment assembly for replenishing disposable medical sheets is provided under the bed board 3. The replenishment assembly includes a replenishment box 2. The side wall of the replenishment box 2 is detachably connected to the side wall of the support 1. The side wall of the replenishment box 2 has an opening, and a baffle 9 is hinged to the side wall of the opening.

[0040] like Figure 3 As shown, an electric actuator 14 is bolted to the bottom wall of the replenishment box 2. A push rod 15 is screwed to the output shaft of the electric actuator 14. A horizontal plate 10 is bolted to the other end of the push rod 15. The horizontal plate 10 slides with the inner wall of the replenishment box 2. A guide groove is vertically opened on the inner wall of the replenishment box 2. A guide block that slides with the guide groove is integrally formed on the side wall of the horizontal plate 10. The controller is used to control the extension and retraction of the output shaft of the electric actuator 14.

[0041] A limiting groove is opened at the top of the horizontal plate 10. The width of the limiting groove is adapted to the width of the disposable medical pad. The upper surface of the disposable medical pad in the limiting groove is in contact with the suction cup 11 on the conveyor belt 5. In this embodiment, the supply component also includes a negative pressure pump. The suction cup 11 is connected to the output port of the negative pressure pump. The controller is used to control the negative pressure pump output port to generate negative pressure.

[0042] like Figure 1 and Figure 3 As shown, specifically, before use, medical staff open the baffle 9, put the stacked disposable medical sheets into the replenishment box 2 through the opening, with the reverse side facing up, and place them in the corresponding position in the limiting groove at the top of the horizontal plate 10.

[0043] When the pad needs to be changed, the controller controls the output shaft of the electric push rod 14 to extend and controls the negative pressure pump output port to generate negative pressure. At the same time, it controls the output shaft of the motor to rotate. At this time, the motor drives the transmission rod 7, which in turn drives the gear to drive the conveyor belt 5 to rotate counterclockwise. Meanwhile, the electric push rod 14 drives the push rod 15 to move vertically upward. The push rod 15 then pushes the horizontal plate 10 to slide upward in the replenishment box 2, so that the disposable medical pad supported by the top of the horizontal plate 10 is pushed towards the bottom of the bed board 3.

[0044] Because the top of the horizontal plate 10 has a limiting groove, the edge of the drape is constrained during its upward movement, thus keeping the drape in a relatively neat posture as it is delivered to the suction position of the conveyor belt 5. Subsequently, the suction cups 11 on the outside of the conveyor belt 5, under the action of the negative pressure pump, adhere to the reverse side of the topmost disposable medical drape. At this time, the disposable medical drape continues to move by the conveyor belt 5, pulling the unused disposable medical drape above the bed board 3. At this point, the front side of the disposable medical drape is facing upward, so that the front side of the drape is laid on the patient's lying position.

[0045] like Figure 2As shown, the side wall of the support 11 is provided with a recycling component for recycling disposable medical sheets. The recycling component includes a recycling box 13. The side wall of the recycling box 13 is detachably connected to the side of the support 1 away from the baffle 9. Above the recycling box 13 is a scraper assembly for removing the used disposable medical sheets. The scraper assembly includes several scrapers 12, all of which are bolted to the side wall of the support 1.

[0046] Several pressure sensors are embedded in the bed board 3. The controller receives the pressure signals sent by the pressure sensors and controls the operation of the motor and electric actuator 14 based on the pressure signals. The pressure sensors are arranged in an array along the length of the bed board 3.

[0047] like Figure 1 As shown, specifically, when a patient undergoes a radiological examination, they lie on the surface of the bed board 3. Pressure sensors, arranged in an array along the length of the bed board 3, collect data on the pressure at different locations and transmit the corresponding signals to the controller. The controller determines whether the bed board 3 is currently occupied by a patient based on the pressure changes of each pressure sensor. Specifically, when the controller detects a change in pressure signal from present to absent, it activates the motor, electric actuator 14, and negative pressure pump. The motor drives the transmission rod 7 to rotate, which in turn drives the conveyor belt 5 to rotate counterclockwise one revolution along its corresponding groove 4 before stopping. At this time, the conveyor belt 5 moves the used disposable medical pads located above the bed board 3 towards the collection box 13. During the movement of the pads, the scraper 12 blocks and scrapes away the pads attached to the surface of the conveyor belt 5, causing the used disposable medical pads to detach from the conveyor belt 5 and fall into the collection box 13 for centralized collection.

[0048] Simultaneously, the output shaft of the electric actuator 14 pushes a new disposable medical sheet in the replenishment box 2 upwards for 5 seconds before retracting, allowing the unused sheet to be carried by the conveyor belt 5 to the surface of the bed board 3. This process completes the laying of a new disposable medical sheet while the old one is being recycled. When the controller detects a change in pressure signal from zero, it shuts off the negative pressure pump.

[0049] This embodiment uses a pressure sensor to identify the patient's bedside status and controls the conveyor belt 5, the replenishment component, and the recycling component to work together after the patient leaves the bed. This enables the automatic removal, recycling, and re-laying of disposable medical sheets, reducing the workload of medical staff in manually changing sheets and also reducing the risk of cross-contamination caused by repeated contact between used disposable medical sheets and the bed surface and personnel during the replacement process.

[0050] Example 2:

[0051] As attached Figure 1 As shown, the difference from Embodiment 1 is that an ultraviolet disinfection lamp is fixedly connected to the inner wall of the recycling box 13 by screws, and the controller is used to control the opening and closing of the ultraviolet disinfection lamp.

[0052] Specifically, when the controller detects a change in pressure signal from present to absent, it simultaneously activates the ultraviolet disinfection lamp. Once the used disposable medical sheet is scraped off by the scraper 12 and falls into the recycling box 13, the ultraviolet disinfection lamp irradiates the interior of the recycling box 13 and the used sheet within it to disinfect the temporary storage environment. When the controller detects a change in pressure signal from absent to absent, it simultaneously deactivates the ultraviolet disinfection lamp.

[0053] Under the continuous irradiation of ultraviolet disinfection lamps, the possibility of microbial attachment and spread is reduced, which helps to reduce the hygiene risks in the subsequent cleaning process.

[0054] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An auxiliary diagnostic device for medical radiology, characterized in that, Includes a support (1) and a controller. A bed board (3) is fixedly connected to the top of the support (1). The controller is embedded inside the bed board (3). Several annular grooves (4) are opened on the side wall of the bed board (3). The bed board (3) has fixed seats (8) symmetrically fixed at both ends. A transmission rod (7) is rotatably connected between adjacent fixed seats (8). A drive component (6) is fixedly connected on one of the fixed seats (8). The output shaft of the drive component (6) is coaxially fixedly connected to one of the transmission rods (7). The controller is used to control the rotation of the output shaft of the drive component (6). Gears are symmetrically and coaxially fixedly connected to the transmission rod (7), and a conveyor belt (5) is sleeved between adjacent gears. The conveyor belt (5) slides with its adjacent slide groove (4), and several suction cups (11) are fixedly connected to the outside of the conveyor belt (5). The bed board (3) is provided with a replenishment component for replenishing disposable medical sheets, and the side wall of the bracket (1) is provided with a recycling component for recycling disposable medical sheets; The bed board (3) is embedded with several pressure sensors. The controller is used to receive the pressure value signals sent by the pressure sensors and control the operation of the drive unit (6) and the electric push rod (14) based on the pressure value signals.

2. The auxiliary diagnostic device for medical radiology according to claim 1, characterized in that, The supply assembly includes a supply box (2), the side wall of the supply box (2) is detachably connected to the side wall of the bracket (1), an electric push rod (14) is fixedly connected to the bottom wall of the supply box (2), a push rod (15) is fixedly connected to the output shaft of the electric push rod (14), a horizontal plate (10) is fixedly connected to the other end of the push rod (15), the horizontal plate (10) slides with the inner wall of the supply box (2), and the controller is used to control the extension and retraction of the output shaft of the electric push rod (14).

3. The auxiliary diagnostic device for medical radiology according to claim 2, characterized in that, The inner wall of the replenishment box (2) is vertically provided with a guide groove, and the side wall of the horizontal plate (10) is fixedly connected with a guide block that slides with the guide groove.

4. The auxiliary diagnostic device for medical radiology according to claim 3, characterized in that, The side wall of the replenishment box (2) has an opening, and a baffle (9) is hinged to the side wall of the opening.

5. The auxiliary diagnostic device for medical radiology according to claim 4, characterized in that, The recycling assembly includes a recycling box (13), the side wall of which is detachably connected to the side of the bracket (1) away from the baffle (9), and a scraper assembly for removing the used disposable medical pad is provided on the top of the recycling box (13).

6. The auxiliary diagnostic device for medical radiology according to claim 5, characterized in that, The scraper assembly includes several scrapers (12), all of which are fixedly connected to the side wall of the bracket (1).

7. The auxiliary diagnostic device for medical radiology according to claim 6, characterized in that, The inner side of the conveyor belt (5) is fixedly connected with a rack structure that meshes with the gear.

8. The auxiliary diagnostic device for medical radiology according to claim 7, characterized in that, The pressure sensors are arrayed along the length of the bed plate (3).

9. The auxiliary diagnostic device for medical radiology according to claim 8, characterized in that, A limiting groove is opened at the top of the horizontal plate (10). The width of the limiting groove is adapted to the width of the disposable medical pad, and the upper surface of the disposable medical pad in the limiting groove contacts the suction cup (11) on the conveyor belt (5).

10. The auxiliary diagnostic device for medical radiology according to claim 9, characterized in that, An ultraviolet disinfection lamp is fixedly connected to the inner wall of the recycling box (13), and the controller is used to control the opening and closing of the ultraviolet disinfection lamp.