An ambulance stretcher based ECMO transfer stretcher
By installing sliding rails and buffer devices on the ambulance stretcher, the problem of the transfer frame colliding with the inner wall of the ambulance on uneven roads was solved, thus improving the stability of the transfer frame and the safety of the patient.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 青岛索尔汽车有限公司
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-05
AI Technical Summary
Existing ECMO transport frames based on ambulance stretchers are prone to colliding with the inner walls of ambulances when traversing uneven surfaces, causing secondary injuries to patients and potentially damaging the ECMO machine.
It adopts slide rails, automatic fixing components and buffer devices. Through the cooperation of parts such as push plates, moving blocks and limit plates, the displacement of the transfer frame is limited, and the vibration is reduced by buffer rods and shock-absorbing springs, thereby improving stability and comfort.
It effectively avoids displacement and collisions of the transport frame, reduces secondary injuries to patients, protects the ECMO machine, and improves the stability and comfort of the transport frame.
Smart Images
Figure CN224320813U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transfer frame technology, and in particular to an ECMO transfer frame based on an ambulance stretcher. Background Technology
[0002] Extracorporeal membrane oxygenation (ECMO) is an advanced life support technology primarily used to provide temporary cardiopulmonary support or replacement in cases of severe cardiopulmonary dysfunction. It works by drawing venous blood from the body, oxygenating it through a specially designed artificial cardiopulmonary bypass, and then injecting it into the patient's arterial or venous system, thus partially replacing the heart and lungs and maintaining oxygenated blood supply to the body's organs and tissues.
[0003] When using existing ECMO transport frames based on ambulance stretchers, the transport frame moves due to the bumps in the road when the ambulance travels over uneven surfaces. This causes the transport frame to collide with the inner wall of the ambulance, which can cause secondary injury to the patient on the transport frame. At the same time, the collision can also cause the ECMO machine to shift, and severe collisions may damage the machine. Utility Model Content
[0004] The purpose of this invention is to address the following shortcomings in the existing technology: When using an existing ECMO transport frame based on an ambulance stretcher, the transport frame moves due to the bumps in the road when the ambulance travels over uneven surfaces. This causes the transport frame to collide with the inner wall of the ambulance, resulting in secondary injury to the patient on the transport frame. At the same time, the collision can also cause the ECMO machine to shift, and severe collisions may damage the machine. Therefore, this invention proposes an ECMO transport frame based on an ambulance stretcher.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An ECMO transfer frame based on an ambulance stretcher includes an ambulance body, slide rails, and a transfer frame body, with both slide rails fixedly connected to the ambulance body.
[0007] An automatic fixing component is installed on the slide rail. The automatic fixing component includes a push plate, a moving block, a rotating plate, and a limiting plate. The push plate is slidably connected inside the slide rail. A square through hole is opened on the outer surface of the slide rail. The moving block is slidably connected inside the square through hole. A straight spring is provided between the moving block and the inner wall of the square through hole. The moving block is fixedly connected to the push plate. The limiting plate is rotatably connected to one end of the slide rail. A limiting groove is opened on the outer surface of the slide rail. A square plate is slidably connected inside the limiting groove. One end of the rotating plate is rotatably connected to the limiting plate, and the other end of the rotating plate is rotatably connected to the square plate. The moving block is fixedly connected to the square plate through a connecting rod.
[0008] Preferably, the outer surface of the movable block is provided with a locking hole, and a locking box is fixedly connected to the slide rail.
[0009] Preferably, a piston plate is slidably connected inside the locking box, and a return spring is fixedly connected between the piston plate and the inner wall of the locking box.
[0010] Preferably, a locking rod is fixedly connected to the outer surface of the piston plate, the locking rod is slidably connected to the moving block, and the locking rod is slidably connected in the locking hole.
[0011] Preferably, rollers are rotatably connected to both ends of the transfer frame body, the rollers are slidably connected in the slide rail, the rollers are slidably connected to the push plate, and multiple cylinders are fixedly connected to the outer surface of the transfer frame body.
[0012] Preferably, a buffer rod is slidably connected inside the cylinder, a shock-absorbing spring is fixedly connected between the buffer rod and the inner wall of the cylinder, a reclining plate is fixedly connected between multiple buffer rods, and a placement box is fixedly connected to the outer surface of the transfer frame body.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. Through the combined action of parts such as the push plate, square plate, and connecting rod, the limiting plate holds the roller at the rear end of the transfer frame body, thereby preventing the transfer frame body from shifting due to road bumps, eliminating the possibility of secondary injury to the patient due to the shaking of the transfer frame body, and improving the stability and safety of the transfer frame body.
[0015] 2. Through the coordinated action of parts such as the moving block, locking box, and return spring, the locking rod enters the locking hole, thereby completely locking the moving block, further restricting the movement of the transfer frame body, improving the stability of the device, and preventing the limit plate and push plate from loosening due to continuous bumpy road surfaces, thus losing the limiting function of the transfer frame body.
[0016] 3. By using the combined action of components such as cylinders, buffer rods, and shock-absorbing springs, the vibration generated by the ambulance body when it travels over bumpy roads is reduced, thereby reducing the impact of the body vibration on the patient and improving the comfort of the transport frame. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the slide rail structure of an ECMO transfer frame based on an ambulance stretcher proposed in this utility model;
[0018] Figure 2This is a schematic diagram of the main structure of an ECMO transfer frame based on an ambulance stretcher proposed in this utility model;
[0019] Figure 3 This is a schematic diagram of the limiting plate structure of an ECMO transfer frame based on an ambulance stretcher proposed in this utility model;
[0020] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;
[0021] Figure 5 This is a schematic diagram of the locking box structure of an ECMO transfer frame based on an ambulance stretcher proposed in this utility model;
[0022] Figure 6 This is a schematic diagram of the cylindrical structure of an ECMO transfer frame based on an ambulance stretcher proposed in this utility model.
[0023] In the diagram: 1. Ambulance body, 2. Slide rail, 3. Transfer frame body, 4. Roller, 5. Lying board, 6. Cylinder, 7. Buffer rod, 8. Shock-absorbing spring, 9. Placement box, 10. Push plate, 11. Moving block, 12. Connecting rod, 13. Square plate, 14. Rotating plate, 15. Limiting plate, 16. Locking box, 17. Locking rod, 18. Piston plate, 19. Return spring. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0026] Reference Figures 1-6 An ECMO transfer frame based on an ambulance stretcher includes an ambulance body, a slide rail 2, and a transfer frame body 3, with both slide rails 2 fixedly connected inside the ambulance body 1.
[0027] An automatic fixing component is installed on the slide rail 2. The automatic fixing connection component includes a push plate 10, a moving block 11, a rotating plate 14, and a limiting plate 15. The push plate 10 is slidably connected inside the slide rail 2. A square through hole is opened on the outer surface of the slide rail 2. The moving block 11 is slidably connected inside the square through hole. A straight spring is provided between the moving block 11 and the inner wall of the square through hole. The moving block 11 is fixedly connected to the push plate 10. The limiting plate 15 is rotatably connected to one end of the slide rail 2. A limiting groove is opened on the outer surface of the slide rail 2. A square plate 13 is slidably connected inside the limiting groove. The limiting groove can hold the square plate 13, so that the square plate 13 can only slide horizontally inside the limiting groove. The square plate 13 is L-shaped. One end of the rotating plate 14 is rotatably connected to the limiting plate 15, and the other end of the rotating plate 14 is rotatably connected to the square plate 13. The moving block 11 is fixedly connected to the square plate 13 through a connecting rod 12. The moving block 11 is right-angled trapezoidal.
[0028] A locking hole is provided on the outer surface of the movable block 11. A locking box 16 is fixedly connected to the slide rail 2. A piston plate 18 is slidably connected inside the locking box 16. A return spring 19 is fixedly connected between the piston plate 18 and the inner wall of the locking box 16. A locking rod 17 is fixedly connected to the outer surface of the piston plate 18. The locking rod 17 is slidably connected to the movable block 11 and is slidably connected in the locking hole. Rollers 4 are rotatably connected to both ends of the transfer frame body 3. The friction between the rollers 4 and the slide rail 2 is low, thereby ensuring that the transfer frame body 3 can slide smoothly into the ambulance body 1. The rollers 4 are slidably connected in the slide rail 2. 4 is slidably connected to the push plate 10. Multiple cylinders 6 are fixedly connected to the outer surface of the transfer frame body 3. Buffer rods 7 are slidably connected inside the cylinders 6. The buffer rods 7 are set in a disc shape at one end of the cylinder 6. At the same time, there is an arc-shaped block inside the cylinder 6, which can restrict the upward movement of the buffer rods 7 and ensure that the buffer rods 7 will not slide out of the cylinder 6. A shock-absorbing spring 8 is fixedly connected between the buffer rods 7 and the inner wall of the cylinder 6. The shock-absorbing spring 8 has a large elastic force and can absorb external vibrations. A lying plate 5 is fixedly connected between the multiple buffer rods 7. A placement box 9 is fixedly connected to the outer surface of the transfer frame body 3. The placement box 9 can be used to place ECOM machines.
[0029] In this invention, when the transfer frame body 3 is pushed into the ambulance body 1, multiple rollers 4 below the transfer frame body 3 will enter the slide rail 2. The rollers 4 at the front end of the transfer frame body 3 will push the push plate 10 forward. The forward movement of the push plate 10 will drive the moving block 11 to move. The movement of the moving block 11 will drive the square plate 13 to slide in the limiting groove through the connecting rod 12. The movement of the square plate 13 will drive the rotating plate 14 to rotate. The rotation of the rotating plate 14 will drive the limiting plate 15 to rotate. When the rollers 4 push the moving block 11 to the end position of the square through hole, the limiting plate 15 will rotate to the maximum angle. At this time, the limiting plate 15 will hold the rollers 4 at the rear end of the transfer frame body 3, thereby preventing the transfer frame body 3 from shifting due to road bumps, eliminating the phenomenon of secondary injury to the patient caused by the shaking of the transfer frame body 3, and improving the stability and safety of the transfer frame body 3.
[0030] When the moving block 11 reaches the designated position, it will press the locking rod 17 during its movement. The locking rod 17, under pressure, will cause the piston plate 18 to move into the locking box 16. As the locking rod 17 moves on the outer surface of the moving block 11, the piston plate 18 and the locking rod 17 continue to move inward. When the locking rod 17 reaches the position of the limiting hole of the moving block 11, it enters the limiting hole under the action of the return spring 19, completing the limiting effect on the moving block 11, thus completely locking the moving block 11. This further restricts the movement of the transfer frame body 3, improves the stability of the device, and prevents the limiting plate 15 and push plate 10 from loosening due to continuous bumpy roads. The limiting function of the transfer frame body 3 is lost. When it is necessary to release the limiting function, simply pull the locking rod 17 to pull the locking rod 17 out of the limiting hole, and then pull the transfer frame body 3 with force. Thus, the transfer frame body 3 can continue to slide in the slide rail 2. When the ambulance body 1 passes over a bumpy road, the vehicle body vibrates. This vibration is transmitted to the lying board 5 through the slide rail 2, the transfer frame body 3, and the roller 4, causing secondary injury to the patient lying flat on the lying board 5. Since it is a patient with a fracture, it will aggravate the patient's pain. Through the action of the cylinder 6, the buffer rod 7, and the shock-absorbing spring 8, this vibration can be reduced, thereby reducing the impact of the vehicle body vibration on the patient and improving the comfort of the transfer frame body 3.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An ECMO transfer frame based on an ambulance stretcher, comprising an ambulance body, a slide rail (2), and a transfer frame body (3), characterized in that, Both of the slide rails (2) are fixedly connected inside the ambulance body (1); An automatic fixing component is installed on the slide rail (2). The automatic fixing component includes a push plate (10), a moving block (11), a rotating plate (14), and a limiting plate (15). The push plate (10) is slidably connected inside the slide rail (2). A square through hole is opened on the outer surface of the slide rail (2). The moving block (11) is slidably connected inside the square through hole. A straight spring is provided between the moving block (11) and the inner wall of the square through hole. The moving block (11) is fixedly connected to the push plate (10). The limiting plate (15) is rotatably connected to one end of the slide rail (2). A limiting groove is opened on the outer surface of the slide rail (2). A square plate (13) is slidably connected inside the limiting groove. One end of the rotating plate (14) is rotatably connected to the limiting plate (15). The other end of the rotating plate (14) is rotatably connected to the square plate (13). The moving block (11) is fixedly connected to the square plate (13) through a connecting rod (12).
2. The ECMO transfer frame based on an ambulance stretcher according to claim 1, characterized in that, The outer surface of the movable block (11) is provided with a locking hole, and a locking box (16) is fixedly connected to the slide rail (2).
3. The ECMO transfer frame based on an ambulance stretcher according to claim 2, characterized in that, A piston plate (18) is slidably connected inside the locking box (16), and a return spring (19) is fixedly connected between the piston plate (18) and the inner wall of the locking box (16).
4. The ECMO transfer frame based on an ambulance stretcher according to claim 3, characterized in that, A locking rod (17) is fixedly connected to the outer surface of the piston plate (18). The locking rod (17) is slidably connected to the moving block (11) and is slidably connected in the locking hole.
5. An ECMO transfer frame based on an ambulance stretcher according to claim 1, characterized in that, The two ends of the transfer frame body (3) are respectively rotatably connected to rollers (4), the rollers (4) are slidably connected in the slide rail (2), the rollers (4) are slidably connected to the push plate (10), and multiple cylinders (6) are fixedly connected to the outer surface of the transfer frame body (3).
6. An ECMO transfer frame based on an ambulance stretcher according to claim 5, characterized in that, A buffer rod (7) is slidably connected inside the cylinder (6), and a shock-absorbing spring (8) is fixedly connected between the buffer rod (7) and the inner wall of the cylinder (6). A lying plate (5) is fixedly connected between multiple buffer rods (7), and a placement box (9) is fixedly connected to the outer surface of the transfer frame body (3).