Sickbed restraint strap for upright tilt test
By designing a multi-position belt buckle and a movable shaft drive system for the bed restraint belt, the problems of existing bed restraint belts being inconvenient to tighten and patients falling off have been solved, achieving convenient fixation and comfortable adjustment, and improving the ease of use and comfort of the bed restraint belt.
Patent Information
- Application Number
- CN202423029503.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing bed restraints are not convenient to tighten with multiple buckles, are easy to fall off the bed when the patient moves, and are not easy to adjust the patient's lying position, affecting the convenience and comfort of use.
A bed restraint system was designed, comprising multiple restraint belt bodies, belt buckles, C-frames, and limiting clasps. The system enables convenient tightening of belt buckles in multiple positions and flexible adjustment of the patient's legs through a drive shaft and torsion springs. The system uses a ring-shaped restraint belt and limiting shoes to fix the patient, and combines the meshing transmission of the movable shaft and the active/driven wheels to achieve convenient tightening of belt buckles in multiple positions and adjustment of the patient's posture.
It enables convenient fixation of patients on the hospital bed, prevents them from falling off, improves ease of use, facilitates adjustment of patient posture, and enhances comfort during restraint.
Smart Images

Figure CN223817726U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bed restraint belt technology, specifically a bed restraint belt for upright tilt testing. Background Technology
[0002] The tilt table test is an auxiliary examination method used to check the normality of venous blood vessels. In patients with vasovagal syncope, when changing from a supine to a tilted position, the degree of blood stasis in the veins of the lower body is more significant than in healthy individuals. The sudden and excessive reduction in venous return causes strong left ventricular contraction, stimulating the C-fiber mechanoreceptors in the posteroinferior region of the left ventricle. These receptors generate strong impulses that are transmitted to the brainstem, reflexively causing a decrease in sympathetic nerve activity and an increase in vagal nerve excitation, leading to a decrease in heart rate and peripheral vasodilation, a decrease in cardiac output, a drop in blood pressure, and syncope. This test can help determine the corresponding condition. During the test, the patient needs to be restrained to the bed with restraint straps.
[0003] As disclosed in the authorization announcement number CN220069949U, a restraint belt that can be used with a hospital bed includes a first restraint belt and a second restraint belt. The second restraint belt is provided on the lower side of the first restraint belt. A bed board is movably provided on the lower end face of the first restraint belt and the second restraint belt. A wrist strap is movably sleeved on the outer surface of the first restraint belt and the second restraint belt. Multiple through holes are opened on the upper end face of the first restraint belt and the second restraint belt. A connecting plate is fixedly provided on the lower end face of the first restraint belt and the second restraint belt. A sliding groove is opened on the upper end face of the two connecting plates. A fixing block is fixedly provided on one side of the upper end face of the two connecting plates. A slider is movably engaged inside the two sliding grooves.
[0004] Although it achieves the goal of clamping and fixing the restraint straps to both sides of the hospital bed, allowing for adjustment and ease of use, and using magnetic buckles to secure the restraint straps, and includes an alarm that sounds when the patient struggles to break free, it does not solve the problems of the existing hospital bed restraint straps' inconvenient multi-position buckle tightening during use. During experiments, the straps are prone to falling off the bed due to patient movement, and it is not convenient to adjust the patient's lying position by bending their legs. These issues greatly affect the convenience of using the hospital bed restraint straps and the patient's comfort during restraint. Utility Model Content
[0005] The purpose of this utility model is to provide a bed restraint belt for upright tilt testing, in order to solve the problems mentioned in the background art, such as the inconvenience of convenient multi-position buckle tightening of the bed restraint belt, the easy slippage of the belt from the bed during the experiment due to the patient moving around, the difficulty in adjusting the patient's lying posture by bending their legs, and the impact on the convenience of using the bed restraint belt and the patient's comfort during restraint.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a bed restraint strap for upright tilt testing, comprising a medical bed and a first restraint strap body. The first restraint strap body is installed at the top of the medical bed. A second restraint strap body is installed at the top of the medical bed on one side of the first restraint strap body. A first belt buckle is installed on the outer wall of the first restraint strap body, and the second restraint strap body extends into the interior of the first belt buckle. A fourth restraint strap body is installed at the top of the medical bed on one side of the second restraint strap body. A third restraint strap body is installed at the top of the medical bed on one side of the fourth restraint strap body. A second belt buckle is installed on the outer wall of the third restraint strap body, and the fourth restraint strap body extends into the interior of the second belt buckle. A C-frame is installed at the top of the medical bed on one side of the third restraint strap body. A fifth restraint strap body is installed at the top of the C-frame. A sixth restraint strap body is installed at the top of the C-frame on one side of the fifth restraint strap body. A third belt buckle is installed on the outer wall of the sixth restraint strap body, and the fifth restraint strap body extends into the interior of the third belt buckle.
[0007] Preferably, connecting arms are symmetrically arranged at the top of the medical bed on one side of the C-frame. Each connecting arm is equipped with a first drive shaft at the end near the C-frame, and the connecting arms are movably connected to the C-frame through the first drive shaft, with the first drive shaft extending to the outside of the connecting arm.
[0008] Preferably, each of the connecting arms is provided with a limiting ring on its outer wall, and each of the limiting rings is provided with a limiting shoe on its outer wall. Each limiting shoe is equipped with a second movable shaft at the end near the limiting ring, and each limiting shoe is movably connected to the limiting ring through the second movable shaft.
[0009] Preferably, an annular binding strap is provided on the inner wall of the connecting arm on one side of the limiting ring, and a first movable shaft is installed on the inner wall of the connecting arm on one side of the annular binding strap, and the annular binding strap is movably connected to the connecting arm through the first movable shaft.
[0010] Preferably, the surface of the first drive shaft is fitted with a first drive wheel, and a first connecting box is installed on the outer wall of the C-shaped frame on one side of the first drive wheel. The interior of the first connecting box is provided with a first torsion spring.
[0011] Preferably, a first connecting shaft is provided inside the first connecting box on one side of the first torsion spring, and the first connecting shaft extends to the outside of the first connecting box. The first torsion spring is connected to the first connecting shaft. A first driven wheel is fitted on the surface of the first connecting shaft, and the first driven wheel meshes with the first driving wheel.
[0012] Preferably, a second drive shaft is installed on the outer wall of the connecting arm on one side of the limiting ring, and the second drive shaft extends into the interior of the connecting arm and connects with the limiting ring. A second drive wheel is fitted on the surface of the second drive shaft, and a second connecting box is installed on the outer wall of the connecting arm on one side of the second drive wheel. A second torsion spring is provided inside the second connecting box.
[0013] Preferably, a second connecting shaft is provided inside the second connecting box on one side of the second torsion spring, and the second connecting shaft extends to the outside of the second connecting box. The second torsion spring is connected to the second connecting shaft. A second driven wheel is fitted on the surface of the second connecting shaft, and the second driven wheel meshes with the second driving wheel.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the bed restraint belt not only realizes the convenient multi-position buckle tightening of the patient, preventing the patient from falling off the bed during the experiment, but also facilitates the patient's leg bending to adjust the patient's lying posture, improves the convenience of using the bed restraint belt, and improves the patient's comfort when restrained.
[0015] By having the patient participating in the tilt test lie flat on the top of the medical bed, the patient's arms pass through the inside of the first and second restraint straps respectively, and are secured by the first buckle, the third and fourth restraint straps cover the patient's abdomen, and are tightened by the second buckle, the patient's waist lies inside the C-frame, and is covered by the fifth and sixth restraint straps, and is tightened by the third buckle, the patient's legs pass through the inside of the ring restraint straps and into the inside of the limiting rings, and the feet are placed inside the limiting shoes, the bed restraint straps can be conveniently tightened in multiple positions, making it easier to restrain the patient to the bed, preventing the patient from falling off the bed during the experiment, and improving the convenience of using the bed restraint straps.
[0016] By naturally placing the patient's legs inside the annular restraint strap, and with the support of the first movable shaft, the patient rotates the annular restraint strap on the outer wall of the connecting arm for adjustment. When the patient is lying down, the strap provides force support to the connecting arm, which in turn drives the first drive shaft to rotate. The first drive shaft then drives the first active wheel, which in turn drives the first driven wheel, which in turn drives the first connecting shaft. A first torsion spring provides elastic support to the first connecting shaft. The connecting arm then drives the second drive shaft to rotate, which in turn drives the second active wheel, which in turn drives the second driven wheel, which in turn drives the second connecting shaft. A second torsion spring provides elastic support to the second connecting shaft. This allows for convenient adjustment of the second connecting box's rotation on the surface of the connecting arm, facilitating the adjustment of the patient's leg flexion. This achieves convenient adjustable rotation of the bed restraint strap, making it easier to adjust the patient's lying posture and improving patient comfort during restraint. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a three-dimensional structural diagram of the C-frame of this utility model;
[0019] Figure 3 This is a front view structural diagram of the present utility model;
[0020] Figure 4 This is a top view of the structure of this utility model;
[0021] Figure 5 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0022] Figure 6 This is a partially enlarged structural diagram of the connecting arm of this utility model;
[0023] Figure 7 This is a three-dimensional structural diagram of the fifth constraint band body of this utility model;
[0024] Figure 8 This is a three-dimensional structural diagram of the fourth constraint belt body of this utility model.
[0025] In the diagram: 1. Medical bed; 2. First restraint belt body; 3. Second restraint belt body; 4. First belt buckle; 5. Third restraint belt body; 6. Fourth restraint belt body; 7. Second belt buckle; 8. C-frame; 9. Fifth restraint belt body; 10. Sixth restraint belt body; 11. Third belt buckle; 12. Connecting arm; 13. First drive shaft; 14. Circular restraint belt; 15. First movable shaft; 16. Limiting clasp; 17. Limiting shoe; 18. Second movable shaft; 19. First driving wheel; 20. First connecting box; 21. First torsion spring; 22. First connecting shaft; 23. First driven wheel; 24. Second drive shaft; 25. Second driving wheel; 26. Second connecting box; 27. Second torsion spring; 28. Second connecting shaft; 29. Second driven wheel. Detailed Implementation
[0026] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0027] Please see Figure 1-8 This utility model provides an embodiment of a bed restraint strap for an upright tilt test, comprising a medical bed 1 and a first restraint strap body 2. The first restraint strap body 2 is installed at the top of the medical bed 1. A second restraint strap body 3 is installed at the top of the medical bed 1 on one side of the first restraint strap body 2. A first belt buckle 4 is installed on the outer wall of the first restraint strap body 2, and the second restraint strap body 3 extends into the interior of the first belt buckle 4. A fourth restraint strap body 6 is installed at the top of the medical bed 1 on one side of the second restraint strap body 3. A third restraint strap body 5 is installed at the top of the medical bed 1 on one side of the fourth restraint strap body 6. A second belt buckle 7 is installed on the outer wall of the third restraint strap body 5, and the fourth restraint strap body 6 extends into the interior of the first belt buckle 4. The medical bed 1 is equipped with a C-frame 8 on one side of the third restraint belt body 5, which extends into the interior of the second belt buckle 7. The top of the C-frame 8 is equipped with a fifth restraint belt body 9. The top of the C-frame 8 on one side of the fifth restraint belt body 9 is equipped with a sixth restraint belt body 10. The outer wall of the sixth restraint belt body 10 is equipped with a third belt buckle 11, and the fifth restraint belt body 9 extends into the interior of the third belt buckle 11. The outer wall of the connecting arm 12 is provided with a limit ring 16. The outer wall of the limit ring 16 is provided with a limit shoe 17. The end of the limit shoe 17 near the limit ring 16 is equipped with a second movable shaft 18, and the limit shoe 17 is movably connected to the limit ring 16 through the second movable shaft 18.
[0028] In use, the patient participating in the tilt test is laid flat on the top of the medical bed 1. The patient's arms are passed through the inside of the first restraint strap body 2 and the second restraint strap body 3, respectively, and the first restraint strap body 2 and the second restraint strap body 3 are fastened by the first buckle 4. The third restraint strap body 5 and the fourth restraint strap body 6 are covered over the patient's abdomen, and the third restraint strap body 5 and the fourth restraint strap body 6 are tightened by the second buckle 7. The patient's waist lies inside the C-frame 8, and the waist is covered by the fifth restraint strap body 9 and the sixth restraint strap body 10. The third buckle 11 tightens the fifth restraint belt body 9 and the sixth restraint belt body 10. The patient's legs pass through the inside of the annular restraint belt 14 and enter the inside of the limiting ring 16. Both feet are placed inside the limiting shoes 17 to facilitate the patient being secured to the top of the medical bed 1. This prevents the patient from falling off the top of the medical bed 1 during the experiment. The bed restraint belt can be conveniently tightened in multiple positions, making it easier to restrain the patient on the bed and preventing the patient from falling off the bed during the experiment. This improves the convenience of using the bed restraint belt.
[0029] Symmetrical connecting arms 12 are arranged at the top of the medical bed 1 on one side of the C-frame 8. A first drive shaft 13 is installed at the end of each connecting arm 12 near the C-frame 8, and the connecting arms 12 are movably connected to the C-frame 8 via the first drive shaft 13. The first drive shaft 13 extends to the outside of the connecting arm 12. An annular restraint strap 14 is provided on the inner wall of each connecting arm 12 on one side of the limiting ring 16. A first movable shaft 15 is installed on the inner wall of each connecting arm 12 on one side of the annular restraint strap 14, and the annular restraint strap 14 is movably connected to the connecting arm 12 via the first movable shaft 15. A first drive wheel 19 is fitted onto the surface of each first drive shaft 13. A first connecting box 20 is installed on the outer wall of the C-frame 8 on one side of the first drive wheel 19. A first torsion spring 21 is installed inside each first connecting box 20. A first connecting shaft 22 is installed inside each first connecting box 20 on one side of the first torsion spring 21, and the first connecting shaft 22 extends to the outside of the first connecting box 20. All torsion springs 21 are connected to the first connecting shaft 22. The surface of the first connecting shaft 22 is fitted with a first driven wheel 23, and the first driven wheel 23 meshes with the first driving wheel 19. A second drive shaft 24 is installed on the outer wall of the connecting arm 12 on one side of the limiting ring 16, and the second drive shaft 24 extends into the interior of the connecting arm 12 and connects with the limiting ring 16. A second driving wheel 25 is fitted on the surface of the second drive shaft 24. A second connecting box 26 is installed on the outer wall of the connecting arm 12 on one side of the second driving wheel 25. A second torsion spring 27 is installed inside the second connecting box 26. A second connecting shaft 28 is installed inside the second connecting box 26 on one side of the second torsion spring 27, and the second connecting shaft 28 extends into the exterior of the second connecting box 26. The second torsion spring 27 is connected to the second connecting shaft 28. A second driven wheel 29 is fitted on the surface of the second connecting shaft 28, and the second driven wheel 29 meshes with the second driving wheel 25.
[0030] In use, when the patient lies on top of the medical bed 1, by naturally placing the patient's legs inside the annular restraint strap 14, and with the movable support of the first movable shaft 15, the patient drives the annular restraint strap 14 to rotate and adjust on the outer wall of the connecting arm 12. When the patient is lying down, it provides force support to the connecting arm 12. With the movable support of the first drive shaft 13, the connecting arm 12 drives the first drive shaft 13 to rotate, which in turn drives the first drive wheel 19 to rotate. Under the meshing action of the first drive wheel 19 and the first driven wheel 23, the first drive wheel 19 drives the first driven wheel 23 to rotate, which in turn drives the first connecting shaft 22 to rotate. With the support of the first connecting box 20, the first torsion spring 21 provides force support to the first connecting shaft 22. 2. Provides elastic support to facilitate adjustment of the rotation angle of the connecting arm 12. The connecting arm 12 drives the second drive shaft 24 to rotate, which in turn drives the second drive wheel 25 to rotate. Under the meshing action of the second drive wheel 25 and the second driven wheel 29, the second drive wheel 25 drives the second driven wheel 29 to rotate, which in turn drives the second connecting shaft 28 to rotate. Supported by the second connecting box 26, the second torsion spring 27 provides elastic support to the second connecting shaft 28, facilitating the adjustment of the rotation of the second connecting box 26 on the surface of the connecting arm 12. This allows for convenient adjustment of the patient's leg flexion, enabling easy adjustment of the bed restraint belt's rotation, facilitating the adjustment of the patient's lying posture, and improving the patient's comfort during restraint.
[0031] Working principle: During use, the patient participating in the tilt test lies flat on the top of the medical bed 1. The patient's arms pass through the inside of the first restraint strap body 2 and the second restraint strap body 3, respectively, and are secured by the first buckle 4. The third restraint strap body 5 and the fourth restraint strap body 6 cover the patient's abdomen, and are tightened by the second buckle 7. The patient's waist lies inside the C-frame 8, and is covered by the fifth restraint strap body 9 and the sixth restraint strap body 10, which are tightened by the third buckle 11. The patient's legs pass through the inside of the annular restraint strap 14 and enter the inside of the limiting ring 16. The feet are placed inside the limiting shoes 17. The patient rotates the annular restraint strap 14 on the outer wall of the connecting arm 12 for adjustment. Normally, the connecting arm 12 provides force support, which drives the first drive shaft 13 to rotate. The first drive shaft 13 drives the first active wheel 19 to rotate, which in turn drives the first driven wheel 23 to rotate. The first driven wheel 23 drives the first connecting shaft 22 to rotate, and the first torsion spring 21 provides elastic support to the first connecting shaft 22 to facilitate adjustment of the rotation angle of the connecting arm 12. The connecting arm 12 drives the second drive shaft 24 to rotate, which in turn drives the second active wheel 25 to rotate. The second active wheel 25 drives the second driven wheel 29 to rotate, and the second driven wheel 29 drives the second connecting shaft 28 to rotate. Under the support of the second connecting box 26, the second torsion spring 27 provides elastic support to the second connecting shaft 28 to facilitate adjustment of the rotation of the second connecting box 26 on the surface of the connecting arm 12, thereby facilitating the adjustment of the patient's leg flexion and completing the use of the bed restraint belt.
[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A bed restraint strap for upright tilt testing, comprising a medical bed (1) and a first restraint strap body (2), characterized in that: A first restraint strap body (2) is installed at the top of the medical bed (1). A second restraint strap body (3) is installed at the top of the medical bed (1) on one side of the first restraint strap body (2). A first belt buckle (4) is installed on the outer wall of the first restraint strap body (2), and the second restraint strap body (3) extends into the interior of the first belt buckle (4). A fourth restraint strap body (6) is installed at the top of the medical bed (1) on one side of the second restraint strap body (3). A third restraint strap body (5) is installed at the top of the medical bed (1) on one side of the fourth restraint strap body (6). A second belt buckle (7) is installed on the outer wall of the body (5), and a fourth restraint belt body (6) extends into the interior of the second belt buckle (7). A C-frame (8) is installed on the top of the medical bed (1) on one side of the third restraint belt body (5). A fifth restraint belt body (9) is installed on the top of the C-frame (8). A sixth restraint belt body (10) is installed on the top of the C-frame (8) on one side of the fifth restraint belt body (9). A third belt buckle (11) is installed on the outer wall of the sixth restraint belt body (10), and the fifth restraint belt body (9) extends into the interior of the third belt buckle (11).
2. The bed restraint belt for upright tilt testing according to claim 1, characterized in that: A connecting arm (12) is symmetrically arranged at the top of the medical bed (1) on one side of the C-frame (8). A first drive shaft (13) is installed at the end of the connecting arm (12) near the C-frame (8). The connecting arm (12) is movably connected to the C-frame (8) through the first drive shaft (13), and the first drive shaft (13) extends to the outside of the connecting arm (12).
3. The bed restraint belt for upright tilt testing according to claim 2, characterized in that: Each of the connecting arms (12) is provided with a limiting ring (16) on its outer wall, and each of the limiting rings (16) is provided with a limiting shoe (17) on its outer wall. Each of the limiting shoes (17) is equipped with a second movable shaft (18) at one end near the limiting ring (16), and each of the limiting shoes (17) is movably connected to the limiting ring (16) through the second movable shaft (18).
4. The bed restraint belt for upright tilt testing according to claim 3, characterized in that: An annular binding strap (14) is provided on the inner wall of the connecting arm (12) on one side of the limiting ring (16). A first movable shaft (15) is installed on the inner wall of the connecting arm (12) on one side of the annular binding strap (14). The annular binding strap (14) is movably connected to the connecting arm (12) through the first movable shaft (15).
5. The bed restraint belt for upright tilt testing according to claim 2, characterized in that: The surface of the first drive shaft (13) is fitted with a first drive wheel (19), and a first connecting box (20) is installed on the outer wall of the C-shaped frame (8) on one side of the first drive wheel (19). A first torsion spring (21) is installed inside the first connecting box (20).
6. The bed restraint belt for upright tilt testing according to claim 5, characterized in that: The first connecting box (20) on one side of the first torsion spring (21) is provided with a first connecting shaft (22), and the first connecting shaft (22) extends to the outside of the first connecting box (20). The first torsion spring (21) is connected to the first connecting shaft (22). The surface of the first connecting shaft (22) is fitted with a first driven wheel (23), and the first driven wheel (23) meshes with the first driving wheel (19).
7. The bed restraint belt for upright tilt testing according to claim 3, characterized in that: A second drive shaft (24) is installed on the outer wall of the connecting arm (12) on one side of the limiting ring (16), and the second drive shaft (24) extends into the interior of the connecting arm (12) and connects with the limiting ring (16). A second drive wheel (25) is fitted on the surface of the second drive shaft (24), and a second connecting box (26) is installed on the outer wall of the connecting arm (12) on one side of the second drive wheel (25). A second torsion spring (27) is provided inside the second connecting box (26).
8. The bed restraint belt for upright tilt testing according to claim 7, characterized in that: The second connecting box (26) on one side of the second torsion spring (27) is provided with a second connecting shaft (28), and the second connecting shaft (28) extends to the outside of the second connecting box (26). The second torsion spring (27) is connected to the second connecting shaft (28). The surface of the second connecting shaft (28) is fitted with a second driven wheel (29), and the second driven wheel (29) meshes with the second driving wheel (25).
Citation Information
Patent Citations
Restraint strap capable of being used in cooperation with sickbed
CN220069949U