A composite stretcher bed system for vehicle-mounted CT scanning

Abstract

The utility model discloses a kind of composite stretcher bed systems for vehicle-mounted CT scanning, belong to medical equipment technical field. Including movable base, lifting unit is equipped on the base, lifting unit top is equipped with stretcher bed frame, stretcher bed frame bottom is equipped with gyro wheel a, movable stretcher bed board is equipped on stretcher bed frame, track is equipped with the cooperation of gyro wheel a in mobile CT cabin bottom portion, space for accommodating base is equipped between track, CT scanning equipment is located above track end portion. The utility model has the beneficial effects of: greatly optimizing space utilization efficiency, improving operation convenience;Simplify diagnosis and treatment process, strengthen patient safety guarantee.

Description

Technical Field

[0001] This utility model relates to a composite stretcher bed system for vehicle-mounted CT scanning, belonging to the field of medical equipment technology. Background Technology

[0002] In the field of emergency medical care, ambulances serve as a crucial link between pre-hospital emergency care and in-hospital treatment. Their transport efficiency and diagnostic capabilities directly impact patient safety, especially for critically ill patients with trauma, cardiovascular emergencies, or other serious conditions. Rapid diagnosis within the "golden treatment time" is a core guarantee for reducing disability and mortality rates. Stretchers, as a core transport component of ambulances, primarily function to facilitate the smooth transfer of patients between the scene, the ambulance, and medical institutions. Their structural design must meet the requirements of being lightweight, stable, and easy to transport.

[0003] In recent years, to overcome the limitations of traditional ambulances that can only provide basic life support, mobile CT ambulances with immediate diagnostic capabilities have gradually become a development trend. These ambulances, by integrating CT equipment, can complete preliminary screening of the patient's condition during transport, significantly shortening preoperative preparation time within the hospital. Currently, mobile CT ambulances on the market are mainly equipped with head CT scanners. Their accompanying stretchers are specifically designed so that once the stretcher is fixed in the pre-set position on the ambulance, the bed board does not need to be extended or adjusted to precisely align the patient's head with the CT scan area, meeting the rapid diagnostic needs of head emergencies and playing a crucial role in emergency scenarios such as stroke and traumatic brain injury.

[0004] However, in emergency scenarios involving multiple injuries or complex injuries, relying solely on head CT scans is insufficient to comprehensively assess a patient's condition, leading to an increasingly urgent clinical need for mobile ambulances equipped with whole-body CT scanners. However, existing stretcher beds designed for head CT scans have significant limitations in their compatibility with whole-body CT ambulances: because whole-body CT scans cover the entire body from head to toe, the length and fixation methods of existing stretcher beds cannot meet the positioning requirements of whole-body scans, rendering them unsuitable for direct application in whole-body CT emergency scenarios.

[0005] While conventional CT scanning beds commonly used in hospital radiology departments can meet the needs of whole-body scans, their fixed structure and heavy weight prevent flexible transport between ambulances and the scene or hospital wards. If the bed is fixed inside the ambulance, a stretcher is required for patient transport. Using both together not only occupies significant space within the ambulance and complicates the process, but more importantly, the patient must be transferred between the stretcher and the scanning bed, a process that greatly increases the risk of secondary injury to patients with fractures, spinal injuries, etc., severely impacting the quality of emergency care and patient prognosis. Therefore, the inability of existing equipment to simultaneously meet the needs of whole-body CT scans and safe patient transport has become a core technological bottleneck restricting the development of whole-body CT ambulances. Utility Model Content

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide a composite stretcher bed system for vehicle-mounted CT scanning. Using this system, patients do not need to be moved and adjusted multiple times, and there is no need to equip a separate CT scanning bed, which increases the operating space, facilitates operation by operators, and improves the efficiency of patient treatment.

[0007] The technical solution of this utility model is: a composite stretcher bed system for vehicle-mounted CT scanning, including a movable base, a lifting unit on the base, a stretcher bed frame on the top of the lifting unit, rollers a at the bottom of the stretcher bed frame, a movable stretcher bed board on the stretcher bed frame, a track at the bottom of the mobile CT chamber that cooperates with the rollers a, a space for accommodating the base between the tracks, and the CT scanning equipment located above the end of the track.

[0008] The CT scanning equipment is located on the inner wall of the mobile CT chamber.

[0009] The base is equipped with rollers b at its bottom, which can roll on the bottom wall of the moving CT chamber between the tracks.

[0010] The lifting unit is a scissor lift device, specifically including scissor arms rotatably connected to both ends of a rotating shaft. The bottom ends of the scissor arms are a hinge end and a sliding end, respectively. The hinge end is hinged to the base, and the sliding end is slidably connected to the base. The top end of the scissor arm is slidably connected to the stretcher bed frame. The output end of the drive cylinder is connected to the middle of the rotating shaft, and the bottom of the drive cylinder is hinged to the base.

[0011] The sliding end is provided with a slider a, which is slidably connected to the guide rail a on the base.

[0012] The base end is provided with a fixing hook, and the track end is provided with a locking block. The fixing hook can engage with the locking block to fix the base.

[0013] The stretcher bed board is slidably connected to the guide rail b on the stretcher bed frame via a slider b at the bottom, and the upper surface of the end of the stretcher bed frame is provided with support wheels for supporting the stretcher bed board.

[0014] The drive mechanism drives the stretcher bed board to move on the stretcher bed frame. The drive mechanism includes a drive motor a fixed on the stretcher bed frame. The output end of the drive motor a is connected to a drive screw. A drive nut is provided at the bottom of the stretcher bed board. The drive screw passes through and is threadedly connected to the drive nut. A control panel a for controlling the start and stop of the drive motor is provided at the end of the stretcher bed frame.

[0015] The drive mechanism drives the stretcher bed board to move on the stretcher bed frame. The drive mechanism includes a drive motor b, and the output end of the drive motor b is provided with a drive wheel that drives the synchronous belt. The synchronous belt is fixedly connected to the stretcher bed board. The end of the stretcher bed frame is provided with a control panel b for controlling the start and stop of the drive motor b.

[0016] The end of the stretcher bed board is provided with a positioning pin, and the stretcher bed frame is provided with a positioning hole for inserting the positioning pin. The positioning pin is inserted into the positioning hole to achieve the positioning of the stretcher bed board on the stretcher bed frame.

[0017] This multi-functional patient transport scanning bed, through its innovative "one bed, multiple uses" design, effectively solves many pain points in existing medical transport and examination processes, possessing significant practical value and technological advantages. Specific beneficial effects are as follows: Firstly, it significantly optimizes space utilization efficiency and improves operational convenience. In existing medical transport scenarios, scanning beds and stretcher beds must be equipped simultaneously. The stacking of these two occupies a significant amount of vehicle or treatment space, restricting the operator's range of motion. This is especially problematic in confined environments such as ambulances, potentially delaying treatment procedures. This product integrates dual-bed functionality, eliminating the need for an additional scanning bed. This reduces bed storage space and significantly expands the operator's working area, providing ample space for critical operations such as emergency treatment and equipment control, thereby improving operational safety and efficiency.

[0018] Secondly, it simplifies the diagnosis and treatment process and enhances patient safety. In the traditional model, patients must be transferred from a stretcher to a scanning bed to complete the examination. This process is not only time-consuming but also prone to causing secondary injury to critically ill patients with fractures, spinal injuries, etc. This product allows patients to undergo head and whole-body scans directly after being placed at the scene of the illness, without needing to be transferred. This eliminates cumbersome transport steps, improves treatment efficiency, and fundamentally avoids the risk of worsening the condition due to secondary movement, providing stronger protection for patient safety. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model; Figure 2 The stretcher bed system is in the loading status. Figure 1 ; Figure 3 The stretcher bed system is in the loading status. Figure 2 ; Figure 4 The stretcher bed system is in the loading status. Figure 3 ; Figure 5 Status diagram of the stretcher bed system being loaded onto the vehicle; Figure 6 View showing the engagement of the fixed hook and the locking block; Figure 7A view showing the insertion and positioning of the locating pin and the locating hole; Figure 8 This is an end view of the stretcher bed frame and stretcher bed board; Figure 9 This is a magnified view of a portion of the support wheels of the stretcher bed frame; Figure 10 For the drive mechanism structure Figure 1 ; Figure 11 For the drive mechanism structure Figure 2 .

[0020] The attached figures are labeled as follows: 1. Base, 2. Stretcher frame, 3. Roller a, 4. Track, 5. CT scanning equipment, 6. Roller b, 7. Shaft, 8. Scissor arm, 9. Drive cylinder, 10. Fixing hook, 11. Locking block, 12. Stretcher board, 13. Slider b, 14. Guide rail b, 15. Drive motor a, 16. Drive screw, 17. Control panel a, 18. Support wheel, 19. Drive motor b, 20. Drive wheel, 21. Synchronous belt, 22. Positioning pin, 23. Control panel b. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-11 Further explanation of this utility model: Example A composite stretcher bed system for vehicle-mounted CT scanning includes a movable base 1, a lifting unit on the base 1, a stretcher bed frame 2 on top of the lifting unit, rollers a3 at the bottom of the stretcher bed frame 2, a movable stretcher bed board 12 on the stretcher bed frame 2, straps for securing the patient on the stretcher bed board 12, and a track 4 at the bottom of the mobile CT chamber that mates with the rollers a3. A space is provided between the tracks 4 to accommodate the base 1, the width of which is slightly larger than the width of the base 1, allowing the base 1 to move vertically and horizontally along the space (e.g., ...). Figure 2-4 As shown), the CT scanning device 5 is located on the inner wall of the mobile CT cabin above the end of the track 4.

[0022] The base 1 is equipped with rollers b6 at its bottom, which can roll on the bottom wall of the movable CT chamber between the tracks 4. To prevent excessive deviation during the rolling of the rollers b6, the distance between the rollers b6 on both sides of the base 1 is 1-2 cm less than the distance between the tracks 4. The inner sidewall of the tracks 4 guides the movement direction of the rollers b6, thereby ensuring that the stretcher can move accurately toward the CT scanning equipment 5.

[0023] The lifting unit is a scissor lift device, specifically including scissor arms 8 rotatably connected to both ends of a rotating shaft 7. The bottom ends of the scissor arms 8 are a hinged end and a sliding end, respectively. The hinged end is hinged to the base 1, and the sliding end has a slider a, which is slidably connected to a guide rail a on the base 1. The top end of the scissor arms 8 is slidably connected to the stretcher frame 2. The output end of a drive cylinder 9 is connected to the middle of the rotating shaft 7, and the bottom of the drive cylinder 9 is hinged to the base 1. The drive cylinder 9 is a hydraulic cylinder; by starting and stopping the hydraulic cylinder, the included angle of the scissor arms 8 can be adjusted, thereby adjusting the height of the stretcher frame 2 relative to the base 1.

[0024] The base 1 is provided with a fixing hook 10 at one end, and the track 4 is provided with a locking block 11 at one end. The fixing hook 10 can engage with the locking block 11 to fix the base 1. After the stretcher frame 2 stops on the track 4, the hydraulic cylinder drives the scissor arm 8 to move the base 1 above the track 4. At this time, the bottom of the fixing hook 10 is higher than the locking block 11. The fixing hook 10 can move with the stretcher frame 2 and the base 1 above the locking block 11. Then the hydraulic cylinder drives the scissor arm 8 to move the base 1 down, so that the roller b6 contacts the bottom wall of the CT chamber. At the same time, the fixing hook 10 engages with the locking block 11, and the base 1 is fixed to the CT chamber. The engagement state of the fixing hook 10 and the locking block 11 is as follows. Figure 6 As shown.

[0025] The stretcher bed board 12 is slidably connected to the guide rail b14 on the stretcher bed frame 2 via a slider b13 at the bottom. The upper surface of the end of the stretcher bed frame 2 is provided with support wheels 18 for supporting the stretcher bed board 12. The stretcher bed board 12 can be moved manually or automatically by a drive mechanism.

[0026] When the stretcher bed board 12 is moved on the stretcher bed frame 2 by the drive mechanism, the drive mechanism includes a drive motor a15 fixed on the stretcher bed frame 2, the output end of the drive motor a15 is connected to a drive screw 16, a drive nut is provided at the bottom of the stretcher bed board 12, the drive screw 16 passes through and is threadedly connected to the drive nut, and a control panel a17 for controlling the start and stop of the drive motor 15 is provided at the end of the stretcher bed frame 2. The drive motor 15 drives the stretcher bed board 12 to move on the stretcher bed frame 2 through the drive screw 16 and the drive nut.

[0027] As another driving method, the driving mechanism includes a drive motor b19, and the output end of the drive motor b19 is provided with a drive wheel 20 that drives a synchronous belt 21. The synchronous belt 21 is fixedly connected to the stretcher bed board 12, and the end of the stretcher bed frame 2 is provided with a control panel b23 for controlling the start and stop of the drive motor b19. The drive motor 15 drives the stretcher bed board 12 to move on the stretcher bed frame 2 via the synchronous belt 21.

[0028] The end of the stretcher bed board 12 is provided with a positioning pin 22, and the side wall of the positioning pin 22 is provided with a limiting rod. When the positioning pin 22 is not working, the limiting rod is located on the surface of the stretcher bed board 12, restricting the downward movement of the positioning pin 22. The stretcher bed frame 2 is provided with a positioning hole for inserting the positioning pin 22 and a clearance groove for the limiting rod to pass through. When the positioning pin 22 moves above the positioning hole with the stretcher bed board 12, the positioning pin 22 is rotated so that the limiting rod is aligned with the clearance groove, so that the positioning pin 22 can move downward and be inserted into the positioning hole. The positioning of the stretcher bed board 12 on the stretcher bed frame 2 is achieved through the insertion and cooperation of the positioning pin 22 and the positioning hole.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A composite stretcher bed system for vehicle-mounted CT scanning, characterized in that, It includes a movable base (1), a lifting unit on the base (1), a stretcher bed frame (2) on the top of the lifting unit, a roller a (3) on the bottom of the stretcher bed frame (2), a movable stretcher bed board (12) on the stretcher bed frame (2), a track (4) at the bottom of the mobile CT chamber that cooperates with the roller a (3), a space for accommodating the base (1) between the tracks (4), and a CT scanning device (5) located above the end of the track (4).

2. The composite stretcher bed system for vehicle-mounted CT scanning according to claim 1, characterized in that, The CT scanning device (5) is located on the inner wall of the mobile CT chamber.

3. The composite stretcher bed system for vehicle-mounted CT scanning according to claim 1, characterized in that, The base (1) is provided with rollers b (6) at the bottom, and the rollers b (6) can roll on the bottom wall of the moving CT chamber between the tracks (4).

4. The composite stretcher bed system for vehicle-mounted CT scanning according to claim 1, characterized in that, The lifting unit is a scissor lift device, specifically including scissor arms (8) rotatably connected to both ends of the rotating shaft (7). The bottom ends of the scissor arms (8) are a hinge end and a sliding end, respectively. The hinge end is hinged to the base (1), and the sliding end is slidably connected to the base (1). The top end of the scissor arms (8) is slidably connected to the stretcher bed frame (2). The output end of the drive cylinder (9) is connected to the middle part of the rotating shaft (7), and the bottom of the drive cylinder (9) is hinged to the base (1).

5. The composite stretcher bed system for vehicle-mounted CT scanning according to claim 4, characterized in that, The sliding end is provided with a slider a, which is slidably connected to the guide rail a on the base (1).

6. The composite stretcher bed system for vehicle-mounted CT scanning according to claim 3, characterized in that, The base (1) is provided with a fixing hook (10) at one end and a locking block (11) at the other end of the track (4). The fixing hook (10) can engage with the locking block (11) to fix the base (1).

7. The composite stretcher bed system for vehicle-mounted CT scanning according to claim 1, characterized in that, The stretcher bed board (12) is slidably connected to the guide rail b (14) on the stretcher bed frame (2) via the bottom slider b (13). The upper surface of the end of the stretcher bed frame (2) is provided with support wheels (18) for supporting the stretcher bed board (12).

8. The composite stretcher bed system for vehicle-mounted CT scanning according to claim 7, characterized in that, The drive mechanism drives the stretcher bed board (12) to move on the stretcher bed frame (2). The drive mechanism includes a drive motor a (15) fixed on the stretcher bed frame (2). The output end of the drive motor a (15) is connected to the drive screw (16). The bottom of the stretcher bed board (12) is provided with a drive nut. The drive screw (16) passes through and is threaded to the drive nut. The end of the stretcher bed frame (2) is provided with a control panel a (17) for controlling the start and stop of the drive motor.

9. The composite stretcher bed system for vehicle-mounted CT scanning according to claim 7, characterized in that, The drive mechanism drives the stretcher bed board (12) to move on the stretcher bed frame (2). The drive mechanism includes a drive motor b (19). The output end of the drive motor b (19) is provided with a drive wheel (20) for driving the synchronous belt (21). The synchronous belt (21) is fixedly connected to the stretcher bed board (12). The end of the stretcher bed frame (2) is provided with a control panel b (23) for controlling the start and stop of the drive motor b (19).

10. The composite stretcher bed system for vehicle-mounted CT scanning according to claim 7, characterized in that, The end of the stretcher bed board (12) is provided with a positioning pin (22), and the stretcher bed frame (2) is provided with a positioning hole for inserting the positioning pin (22). The positioning pin (22) is inserted into the positioning hole to realize the positioning of the stretcher bed board (12) on the stretcher bed frame (2).

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