An upright tilt test bed

By designing an adjustable fixation mechanism and actuator on the upright tilt test bed, the adaptation problem of patients of different heights was solved, and the patients were able to maintain a stable and comfortable position during the examination.

CN224441639UActive Publication Date: 2026-07-03THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV
Filing Date
2025-02-28
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing upright tilt test bed cannot accommodate patients of different heights, and the fixation mechanism cannot be adjusted, which makes it impossible for patients to maintain a proper position during the examination.

Method used

An upright tilting test bed was designed, which includes an adjustable fixing mechanism. The position of the fixing arm is adjusted by using locking elements and push-pull electromagnets. Combined with the foot support plate and the drive of the bed body, it can accommodate patients of different heights.

Benefits of technology

It effectively fixes patients of different heights, ensuring that they maintain an appropriate position during the examination, thus improving the safety and comfort of the examination.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an upright tilt testing bed. The upright tilt testing bed includes a bed frame, a foot support plate, a first angle actuator, and a fixing mechanism. The foot support plate is mounted on the bed frame, and the fixing mechanism is mounted on the bed frame. The output end of the first angle actuator is connected to the bed frame, and the bed frame is pivotally connected to a support base. The fixing mechanism includes an airbag for fixing the patient, a fixing arm for mounting the airbag, a rotating shaft for mounting the fixing arm, a locking device for locking the fixing arm, a sliding rod for mounting the locking device, and a locking member for locking the fixing arm onto the rotating shaft. The rotating shaft and sliding rod are located on both sides of the bed frame. Both ends of the rotating shaft are rotatably mounted on mounting bases, which are fixed to the bed frame. One end of the fixing arm is mounted on the rotating shaft, the locking device is used to lock the other end of the fixing arm, and the locking member is mounted on the fixing arm to fix the fixing arm onto the rotating shaft. This utility model's upright tilt testing bed can adjust the position of the fixing mechanism to accommodate patients of different heights.
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Description

Technical Field

[0001] This utility model relates to the field of vertical tilt testing technology, and in particular to a vertical tilt testing bed. Background Technology

[0002] Current tilt table tests require a tilt table, and the patient must maintain a position close to the table during the examination. Current patient restraints or mechanisms on these tables are fixed and cannot accommodate individuals of varying heights. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an upright inclined test bed that can adapt to different heights.

[0004] To address the aforementioned problems, this utility model provides an upright tilt test bed. The upright tilt test bed includes a bed frame for supporting the patient's back, a footrest for supporting the patient's feet, a first angle actuator for adjusting the bed frame's posture, and a fixing mechanism for securing the patient. The footrest is mounted on the bed frame, and the fixing mechanism is mounted on the bed frame. The output end of the first angle actuator is connected to the bed frame, and the bed frame is pivotally connected to a support base. The fixing mechanism includes an airbag for securing the patient, a fixing arm for mounting the airbag, a rotating shaft for mounting the fixing arm, a locking device for locking the fixing arm, a sliding rod for mounting the locking device, and a locking member for locking the fixing arm onto the rotating shaft. The rotating shaft and sliding rod are located on opposite sides of the bed frame. Both ends of the rotating shaft are rotatably mounted on mounting bases, which are fixed to the bed frame. One end of the fixing arm is mounted on the rotating shaft, the locking device is used to lock the other end of the fixing arm, and the locking member is mounted on the fixing arm to fix it onto the rotating shaft.

[0005] Furthermore, the locking device includes a locking seat, a push-pull electromagnet, and a locking pin fixed on the push-pull electromagnet. The locking seat is provided with a locking groove and a through hole. The fixed arm is inserted into the locking groove. The push-pull electromagnet is installed on the locking seat. The locking pin passes through the through hole of the locking seat. When the push-pull electromagnet is not working, the locking pin extends into the locking groove. When the push-pull electromagnet is working, the locking pin retracts from the locking groove. The movable end of the fixed arm is provided with a locking hole corresponding to the locking pin. The locking pin is inserted into the locking hole to lock the fixed arm.

[0006] Furthermore, the fixed arm is provided with a locking tongue, and the locking hole is provided on the locking tongue.

[0007] Furthermore, the latch is provided with a guide bevel to facilitate the insertion of the lock pin into the lock hole.

[0008] Furthermore, the push-pull electromagnet is mounted on the locking seat via a mounting plate.

[0009] Furthermore, the fixed arm has a movable end and a fixed end. The end of the fixed arm connected to the rotating shaft is the fixed end. The fixed end has an end face and a vertical surface that is perpendicular to the end face and close to the bed. The vertical surface contacts the bed and restricts the rotation of the fixed arm. The distance between the end face of the fixed end of the fixed arm and the axis of the rotating shaft is greater than the vertical distance between the axis of the rotating shaft and the bed. The end face smoothly transitions to the adjacent side close to the bed to form an arc surface. The arc surface is coaxial with the rotating shaft, and the radius of the arc surface is the same as the vertical distance between the axis of the rotating shaft and the bed.

[0010] Furthermore, the fixing mechanism also includes a connector, the two ends of which are respectively connected to the locking device and the end of the fixing arm that is connected to the rotating shaft.

[0011] Furthermore, two fixed arms are provided on the rotating shaft.

[0012] Furthermore, a displacement actuator is connected to the foot support plate, and the displacement actuator is located on the bed.

[0013] Furthermore, the support base is a second driver.

[0014] This utility model discloses an upright tilt test bed that uses a locking device to unlock the fixed arm, allowing the fixed arm to move on the rotating shaft, thereby adjusting the position of the fixed arm to accommodate patients of different heights. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a preferred embodiment of an upright inclined test bed according to the present invention.

[0016] Figure 2 This is a structural diagram of the fixed mechanism.

[0017] Figure 3 This is a schematic diagram of the structure when the fixed arm is flipped.

[0018] Figure 4 This is a schematic diagram of a fixation mechanism used to secure the body.

[0019] Figure 5 This is a structural diagram of the fixed end of the fixed arm.

[0020] Figure 6 This is a schematic diagram of the locking device.

[0021] Figure 7 This is a schematic diagram of the locking seat.

[0022] The meanings of the labels in the attached diagram are as follows:

[0023] Bed frame 1, foot support plate 2, first angle actuator 3, second angle actuator 4, displacement actuator 5, fixing mechanism 6, fixing arm 61, end face 611, vertical surface 612, arc surface 613, airbag 62, rotating shaft 63, slide rod 64, locking device 65, locking seat 651, locking groove 6511, through hole 6512, push-pull electromagnet 652, locking pin 653, paddle 654, locking component 66, mounting base 67, connecting component 68, locking tongue 69, lock hole 691. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figures 1 to 4 As shown, a preferred embodiment of the upright tilt test bed of this utility model includes a bed body 1, a foot support plate 2, a first angle actuator 3, a second angle actuator 4, a displacement actuator 5, and a fixing mechanism 6. The bed body 1 is used to support the patient's back, and the patient lies on the bed body 1 before the test begins. There are two fixing mechanisms 6, both of which are located on the bed body 1. The two fixing mechanisms 6 are used to fix the patient's lower limbs and torso, respectively, so that the patient can tilt with the bed body 1; the fixing mechanism 6 can adjust the position of the patient to accommodate patients of different heights. The bed body 1 is pivotally connected to the first actuator and also to the second actuator. The first actuator drives the bed body 1, allowing it to tilt. Under normal use, only the first actuator is used for driving. In case of an emergency, the first and second actuators can simultaneously drive the bed body 1 in opposite directions, allowing the bed body 1 to quickly change its posture to respond to sudden patient emergencies and facilitate timely rescue. In other embodiments, the first and second actuators can be used simultaneously to adjust the posture of the bed body 1 under normal use. Alternatively, only the first actuator can be used, with the second actuator replaced by a support base, and the bed body 1 pivotally connected to the support base. The footrest 2 passes through the bed body 1 and connects to the displacement actuator 5. The footrest 2 supports the patient in the tilted position, and the displacement actuator 5 drives the position of the footrest 2 to change its position, ensuring it provides support for people of different heights. The displacement actuator 5 is a pneumatic or electric cylinder, the first angle actuator 3 is a pneumatic or electric cylinder, and the second angle actuator 4 is a lifting column.

[0026] Each of the aforementioned fixing mechanisms 6 includes a fixing arm 61, an airbag 62, a rotating shaft 63, a sliding rod 64, a locking device 65, a locking member 66, a mounting base 67, and a connecting member 68. The rotating shaft 63 and the sliding rod 64 are distributed on both sides of the bed body 1. The two ends of the rotating shaft 63 are rotatably provided with mounting bases 67, and the rotating shaft 63 can rotate on the mounting bases 67. The mounting bases 67 are mounted on the bed body 1, and the sliding rod 64 is mounted on the bed body 1 through the mounting bases 67. The fixed arm 61 has a movable end and a fixed end. The fixed end of the fixed arm 61 is mounted on the corresponding rotating shaft 63. The fixed arm 61 is fixed to the rotating shaft 63 by a locking member 66. When the locking member 66 is unlocked, the fixed arm 61 can move axially along the corresponding rotating shaft 63, accommodating patients of different heights. The locking member 66 is typically a screw, and the fixed arm 61 has a screw hole. The locking member 66 is screwed into the screw hole of the fixed arm 61. When the locking member 66 abuts against the rotating shaft 63, the fixed arm 61 is fixed to the rotating shaft 63. When the locking member 66 is separated from the rotating shaft 63, the fixed arm 61 is unlocked from the rotating shaft 63, and the fixed arm 61 can move on the rotating shaft 63. The locking device 65 is used to lock the movable end of the fixed arm 61, preventing the fixed arm 61 from rotating around the axis of the rotating shaft 63. The locking device 65 is installed on the rotating shaft 63 on the other side of the bed frame 1, that is, the locking device 65 and the fixed end of the fixing arm 61 are respectively located on both sides of the bed frame 1. The two ends of the connecting piece 68 are fixed to the fixed end of the fixing arm 61 and the locking device 65, so that when the fixing arm 61 is pushed, the locking device 65 moves synchronously, which facilitates the adjustment of the position of the fixing arm 61 without the need to adjust the position of the locking device 65 separately. An airbag 62 is provided on the fixing arm 61. After the airbag 62 is inflated, it presses on the patient to fix the patient. The fixing arm 61 used to fix the lower limbs is provided with two airbags 62, and the two airbags 62 are respectively provided for the two patients. The fixing arm 61 corresponding to the torso is provided with a longer airbag 62. The fixation mechanism 6 used to fix the torso is provided with two fixing arms 61 and a locking device 65. Each fixing arm 61 is provided with an airbag 62. The two fixing arms 61 can better fix the torso. The number of fixing arms 61 can be increased or decreased as needed.

[0027] like Figure 5As shown, the fixed end has an end face 611 and a vertical surface 612 that is perpendicular to the end face 611 and close to the bed body 1. The vertical surface 612 contacts the bed body 1 and limits the angle at which the fixed arm 61 rotates toward the other rotating shaft 63. The distance between the end face 611 of the fixed end of the fixed arm 61 and the axis of the rotating shaft 63 is greater than the vertical distance between the axis of the rotating shaft 63 and the bed body 1. The end face 611 and the adjacent side close to the bed body 1 smoothly transition to form an arc surface 613. The arc surface 613 is coaxial with the rotating shaft 63, and the radius of the arc surface 613 is the same as the vertical distance between the axis of the rotating shaft 63 and the bed body 1. In this way, the fixed arm 61 can rotate smoothly while the end face 611 can also limit the rotation of the fixed arm 61 to avoid over-rotation. The vertical surface 612 and the end face 611 together limit the rotation of the fixed arm 61 by 90°.

[0028] like Figure 6 and Figure 7 As shown, the locking device 65 includes a locking seat 651, a push-pull electromagnet 652, and a locking pin 653 fixed on the push-pull electromagnet 652. The locking seat 651 is provided with a locking groove 6511 and a through hole 6512. The movable end of the fixed arm 61 is inserted into the locking groove 6511. The push-pull electromagnet 652 is mounted on the locking seat 651. The locking pin 653 passes through the through hole 6512 of the locking seat 651. When the push-pull electromagnet 652 is not working, the locking pin 653 extends into the locking groove 6511. When the push-pull electromagnet 652 is working, the locking pin 653 retracts from the locking groove 6511. The movable end of the fixed arm 61 is provided with a locking hole 691 corresponding to the locking pin 653. The locking pin 653 is inserted into the locking hole 691 to lock the movable end of the fixed arm 61. To reduce the size of the locking groove 6511, a locking tongue 69 is provided on the fixed arm 61, and the locking hole 691 is located on the locking tongue 69. The locking tongue 69 is provided with a guide slope to facilitate the insertion of the locking pin 653 into the locking hole 691, so that the locking pin 653 can be automatically inserted into the locking hole 691.

[0029] The push-pull electromagnet 652 is mounted on the locking seat 651 via a mounting plate, so that there is a certain distance between the push-pull electromagnet 652 and the locking seat 651, thus allowing space to manually pull the locking pin 653; in order to facilitate pulling the locking pin 653, a lever 654 is provided on the locking pin 653, so that the locking tongue 69 can be manually unlocked to deal with special situations.

[0030] When the test is required, the patient first lies on the bed, then the lower limb fixation arm 61 and the torso fixation arm 61 are flipped over, and the movable ends of the lower limb fixation arm 61 and the torso fixation arm 61 are inserted into the corresponding lower limb locks 65 and torso locks 65. Then, the lower limb airbags 62 and the torso airbags 62 are inflated to fix the patient to the bed 1. If the current position of the foot support plate 2, the lower limb fixation mechanism 6, and the torso fixation mechanism 6 is not suitable, the displacement actuator 5 drives the foot support plate 2 to move to adjust its position; the lower limb locking piece 66 and the torso locking piece 66 are loosened, and then the position of the lower limb fixation arm 61 and the torso fixation arm 61 is moved. After adjustment, the lower limb locks and the torso locks 66 are tightened. Adjusting the lower limb fixation mechanism 6 and the torso fixation mechanism 6 only requires moving the lower limb fixation arm 61 and the torso fixation arm 61, which is convenient. After fixation is completed, the first angle actuator 3 drives the bed 1 to rotate to a predetermined angle to conduct an upright tilt test.

[0031] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, whether directly or indirectly applied to other related technical fields, shall also be within the patent protection scope of this utility model.

Claims

1. An upright tilt table, characterized by: The device includes a bed frame for supporting the patient from the back, a footrest for supporting the patient from the feet, a first angle actuator for adjusting the bed frame posture, and a fixation mechanism for securing the patient. The footrest is mounted on the bed frame, and the fixation mechanism is mounted on the bed frame. The output end of the first angle actuator is connected to the bed frame, and the bed frame is pivotally connected to a support base. The fixation mechanism includes an airbag for securing the patient, a fixing arm for mounting the airbag, a pivot for mounting the fixing arm, a locking device for locking the fixing arm, a slide rod for mounting the locking device, and a locking member for locking the fixing arm onto the pivot. The pivot and slide rod are located on both sides of the bed frame. Both ends of the pivot are rotatably mounted on a mounting base, which is fixed to the bed frame. One end of the fixing arm is mounted on the pivot. The locking device is used to lock the other end of the fixing arm, and the locking member is mounted on the fixing arm to secure it to the pivot. The locking device includes a locking seat, a push-pull electromagnet, and a locking pin fixed on the push-pull electromagnet. The locking seat is provided with a locking groove and a through hole. The fixed arm is inserted into the locking groove. The push-pull electromagnet is installed on the locking seat. The locking pin passes through the through hole of the locking seat. When the push-pull electromagnet is not working, the locking pin extends into the locking groove. When the push-pull electromagnet is working, the locking pin retracts from the locking groove. The movable end of the fixed arm is provided with a locking hole corresponding to the locking pin. The locking pin is inserted into the locking hole to lock the fixed arm.

2. An upright tilt table as defined in claim 1, wherein: The fixed arm is provided with a locking tongue, and the lock hole is located on the locking tongue.

3. An upright tilt table as defined in claim 2, wherein: The latch is provided with a guide bevel to facilitate the insertion of the lock pin into the lock hole.

4. An upright tilt table as defined in claim 1, wherein: The push-pull electromagnet is mounted on the locking seat via a mounting plate.

5. An upright tilt table as defined in claim 1, wherein: The fixed arm has a movable end and a fixed end. The end of the fixed arm connected to the rotating shaft is the fixed end. The fixed end has an end face and a vertical surface that is perpendicular to the end face and close to the bed body. The vertical surface contacts the bed body and restricts the rotation of the fixed arm. The distance between the end face of the fixed end of the fixed arm and the axis of the rotating shaft is greater than the vertical distance between the axis of the rotating shaft and the bed body. The end face smoothly transitions to the adjacent side close to the bed body to form an arc surface. The arc surface is coaxial with the rotating shaft, and the radius of the arc surface is the same as the vertical distance between the axis of the rotating shaft and the bed body.

6. An upright tilt table as defined in claim 1, wherein: The fixing mechanism also includes a connector, the two ends of which are respectively connected to the locking device and the end of the fixing arm that is connected to the rotating shaft.

7. An upright tilt table as defined in claim 1, wherein: The rotating shaft is equipped with two fixed arms.

8. An upright tilt table as defined in claim 1, wherein: A displacement actuator is connected to the foot support plate, and the displacement actuator is located on the bed.

9. An upright tilt table as defined in claim 1, wherein: The support base is the second driver.