Medical inverted suspension traction device

Abstract

This invention discloses a medical inverted traction device, comprising a base, a bed board on the base, and a drive mechanism for rotating the bed board, with the bed board located in the center of the base; the bed board includes a pedal, a collar for encircling the legs, and a locking mechanism for locking the collar; the locking mechanism includes a bladder and a piston assembly, the pedal deflecting and squeezing the bladder to move the piston assembly to drive the collar to close. This invention allows the user to adjust the collar's locking position by deflecting the pedal, thus enabling the user to control the collar's locking status around the patient's legs for easy movement up and down the bed board; furthermore, during inverted suspension, the user's own weight causes their feet to detach from the pedal, preventing accidental loosening of the collar and maintaining the mechanical lock formed by the collar, ensuring safety during inverted traction.

Description

Technical Field

[0001] This invention relates to the field of inverted traction bed technology, and in particular to a medical inverted traction device. Background Technology

[0002] Inverted traction usually refers to a physical therapy that uses gravity to stretch the spine by hanging the human body upside down (head down, feet up).

[0003] The inverted traction bed is a rehabilitation and fitness device based on the aforementioned therapy. Users fix their ankles and use the device's operation to tilt or invert their bodies, lowering their head below the heart. Gravity then stretches the intervertebral spaces of the lumbar and cervical vertebrae, aiming to relieve intervertebral disc pressure, relax muscle tension, and improve posture. It is commonly used to relieve lower back pain, herniated discs, sciatica, and other problems, and is sometimes used in fitness or rehabilitation training. While the inverted traction bed has unique benefits, it is also a potentially risky device. Therefore, pre-use safety checks, ensuring stability during use, and monitoring one's own physical reactions are all crucial to prevent accidents.

[0004] A search revealed that Chinese invention patent CN101406737B discloses a self-controlled human inversion device, comprising: a main support for supporting the weight of the rest of the self-controlled human inversion device and fixed to a base or the ground; a rotatable human body support rotatably connected to two pillars on the left and right sides of the main support via a rotating hinge; a rotating hinge for rotatably connecting the rotatable human body support to the two pillars of the main support; a manual control component fixed to the top of the two pillars of the main support, which the user applies force to assist in the rotation of the body; a limiting component fixed to the main support or the base / ground to limit the rotation range of the rotatable human body support to within 0° to 360°; and a foot fixation device connected to the lower half of the human body support to fix the user's feet to the human body support. The application uses a T-shaped ankle fixator to allow the user to lock their ankle in for stability while hanging upside down. However, since the ankle fixator does not form a mechanical lock but is in an open state, it is difficult to guarantee that the user's ankle will not fall out of it, so its use poses a safety hazard. Summary of the Invention

[0005] In view of the above-mentioned prior art, the present invention provides a medical inverted traction device, the main technical problem to be solved is how to ensure safety during inverted traction.

[0006] To achieve the above objectives, the technical solution of this invention is implemented as follows: A medical inverted traction device includes a base, a bed board on the base and a drive mechanism for rotating the bed board, the bed board being located in the middle of the base; the bed board is provided with a pedal, a collar for embracing the legs and a locking mechanism for locking the collar; the locking mechanism includes a bladder and a piston assembly, the pedal deflects and squeezes the bladder to move the piston assembly to drive the collar to close.

[0007] Furthermore, side plates are fixedly connected to the middle of the left and right sides of the top of the base. The top of the two side plates are rotatably connected to the same shaft. The bed board is fixedly connected to the shaft. The bottom of the two side plates is connected to the same central shaft. The outside of the central shaft is connected to a toothed roller and a worm gear via a key.

[0008] Furthermore, the drive mechanism includes a motor fixedly connected to the base, one end of the motor's output shaft being connected to a worm gear via a key, the worm gear meshing with a worm wheel, an arc-shaped toothed plate fixedly connected to the back of the bed plate, the toothed plate meshing with a toothed roller, and an arc-shaped support plate fixedly connected to the inner side of the toothed plate.

[0009] Furthermore, "7"-shaped shoulder supports are fixedly connected to both sides of the top of the front of the bed board, handles are fixedly connected to both sides of the middle of the front of the bed board, and base plates are fixedly connected to both sides of the bottom of the front of the bed board. Two pedals are rotatably connected to the top of the two base plates through damping pivots.

[0010] Furthermore, the bed board has a cavity at the top of the bottom plate, and a pressure plate is provided at the bottom of the cavity. The bladder is fixedly connected between the pressure plate and the inner wall of the bed board on the side away from the pedal. Slide rods are provided through both sides of the pressure plate and are fixedly connected in the cavity.

[0011] Furthermore, a spring is fixedly connected between the pressure plate and the inner wall of the bed board at the outer side of the slide rod. A slot is opened on the pressure plate, and a through groove is opened at the bottom of one side of the cavity. A protrusion is fixedly connected to one side of the pedal. When the pedal deflects, the protrusion enters the cavity from the through groove and engages with the slot.

[0012] Furthermore, the piston assembly includes two piston cylinders and a piston rod that passes through the two piston cylinders and is close to one end of each other. A piston is fixedly connected to one end of the piston rod in the piston cylinder. A pipe is fixedly connected between the bladder and the two piston cylinders. The two piston cylinders are respectively fixedly connected to the top ends on both sides of the cavity.

[0013] Furthermore, a groove is provided at the top of one side of the cavity, and support plates are slidably connected at both ends inside the groove. The support plates are fixedly connected to the end of the piston rod outside the piston cylinder. The collar includes two semi-circular rings, which are respectively fixedly connected to one end of the two support plates.

[0014] Furthermore, padding is fixedly connected to the inner side of the shoulder support, the outer side of the handle, and the inner side of the collar.

[0015] The beneficial effects of this invention are as follows: 1. This application allows the locking of the collar to be adjusted by deflecting the pedal, so the user can control the locking state of the collar on the patient's legs to get on and off the bed. During the inverted process, the user's own weight will cause the feet to detach from the pedal, thus avoiding accidental loosening of the collar and maintaining the mechanical lock formed by the collar to ensure safety during inverted traction. In addition, since the bed board always rotates at the middle of the top of the base, the change in its center of gravity is small, which further ensures the stability and safety during inverted traction. 2. This application utilizes a worm gear to drive a worm wheel to rotate, which in turn drives a toothed roller to drive a toothed plate, thereby achieving the effect of adjusting the bed board angle. This can maintain the stability during the bed board angle adjustment process, making the inverted traction safer. In addition, this process of adjusting the bed board movement can bring a larger range of angle changes, so that users can stand up and climb onto the bed board and adjust the bed board deflection at multiple angles. 3. By setting pads on the inside of the shoulder support, the outside of the handle, and the outside of the collar, the latter can act as a buffer and cushion between the former three and the user's body, so as to ensure the comfort of the human body in the upside-down position and avoid injury. Attached Figure Description

[0016] Figure 1 This is a perspective view of a medical inverted traction device according to Embodiment 1 of this application; Figure 2 This is a side sectional view of a medical inverted traction device according to Embodiment 1 of this application; Figure 3 This is a perspective view of the bed board of a medical inverted traction device according to Embodiment 1 of this application; Figure 4 This is a partial enlarged view of the bed board of a medical inverted traction device according to Embodiment 1 of this application; Figure 5 This is a perspective view of the bed board of a medical inverted traction device according to Embodiment 2 of this application.

[0017] Explanation of icon numbers: 1. Base; 2. Side plate; 3. Toothed roller; 4. Central shaft; 5. Toothed plate; 6. Support plate; 7. Rotating shaft; 8. Bed board; 801. Slide groove; 802. Through groove; 803. Cavity; 9. Worm gear; 10. Worm; 11. Motor; 12. Handle; 13. Shoulder support; 14. Collar; 15. Pedal; 16. Base plate; 17. Bag; 18. Spring; 19. Pressure plate; 1901. Slide rod; 20. Protrusion; 21. Support plate; 22. Pipe; 23. Piston cylinder; 24. Piston rod; 25. Protective pad; 26. Detailed Implementation

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0019] Example 1 See attached document Figures 1-4 This application provides a medical inverted traction device, including a base 1, a bed board 8 and a drive mechanism for rotating the bed board 8 on the base 1. The bed board 8 is located in the middle of the base 1, so the rotation of the bed board 8 will occur in the middle of the base 1. Therefore, the center of gravity of the bed board 8 will not change too much during the deflection adjustment process, thereby maintaining the stability of the device. The bed board 8 is provided with a pedal 15, a collar 14 for wrapping around the legs and a locking mechanism for locking the collar 14. The pedal 15 and the collar 14 are vertically aligned. When the user steps on the pedal... When the pedal 15 is in place, the user's legs are positioned within the collar 14. The locking mechanism includes a bladder 17 and a piston assembly. The pedal 15 deflects and squeezes the bladder 17 to move the piston assembly, thereby driving the collar 14 to close. Therefore, the initial position of the pedal 15 can be set to an inclined state, i.e., the two are in an "inward" or "outward" state. At this time, the user's feet will be in a twisted and uncomfortable state. When the pedal 15 is adjusted to be perpendicular to the bed board 8, the user's feet will be in a parallel and comfortable state. At this time, the collar 14 is in a closed state, thus ensuring safety.

[0020] Preferably, side plates 2 are fixedly connected to the middle of the left and right sides of the top of the base 1. The top of the two side plates 2 are rotatably connected to the same rotating shaft 7. The bed board 8 is fixedly connected to the rotating shaft 7. The same central shaft 4 is provided through the bottom between the two side plates 2. The outside of the central shaft 4 is connected to a toothed roller 3 and a worm gear 9 by a key. The toothed roller 3 is located between the two side plates 2, and the worm gear 9 is located inside the side plate 2.

[0021] Preferably, the drive mechanism includes a motor 11 fixedly connected to the base 1. One end of the output shaft of the motor 11 is connected to a worm gear 10 via a key. The worm gear 10 meshes with a worm wheel 9. An arc-shaped toothed plate 5 is fixedly connected to the back of the bed board 8. The toothed plate 5 meshes with a toothed roller 3. The motor 11 can be a stepper motor that can control the rotation angle. Since the angle at which the motor 11 drives the worm gear 10 to rotate, the angle at which the worm gear 10 drives the worm wheel 9 to rotate, the angle at which the worm wheel 9 drives the toothed roller 3 to rotate via the central shaft 4, and the angle at which the toothed roller 3 drives the toothed plate 5 are all proportional, the rotation angle of the bed board 8 can be precisely controlled by the motor 11 to perform inverted traction exercises at multiple angles. An arc-shaped support plate 6 is fixedly connected to the inner side of the toothed plate 5. The arc-shaped support plate 6 can maintain the strength of the toothed plate 5 and prevent it from deforming, which would cause poor meshing with the toothed roller 3.

[0022] Preferably, "7"-shaped shoulder supports 13 are fixedly connected to both sides of the top of the front of the bed board 8. The shoulder supports 13 are used to support the user's shoulders. Handles 12 are fixedly connected to both sides of the middle of the front of the bed board 8. The handles 12 are used by the user to hold on and provide a sense of security. Base plates 16 are fixedly connected to both sides of the bottom of the front of the bed board 8. Two pedals 15 are rotatably connected to the top of the two base plates 16 through damping pivots, so that there is a damping force between them to prevent the user from accidentally touching the pedals 15 or from the loops 14 from being loosened by unexpected external forces. The loops 14 and the pedals 15 cooperate to restrain the user's legs and feet to ensure safety during the inverted process. In addition, the bed board 8 is also provided with straps to restrain the user's waist, arms and thighs to further maintain the user's safety.

[0023] Preferably, the bed board 8 has a cavity 803 at the top of the bottom plate 16. A pressure plate 19 is provided at the bottom of the cavity 803. The bladder 17 is fixedly connected between the pressure plate 19 and the inner wall of the bed board 8 on the side away from the pedal 15. A slide rod 20 is provided through both sides of the pressure plate 19. The pressure plate 19 and the slide rod 20 are slidably connected. Therefore, the latter can guide the movement of the former to ensure that the bladder 17 can be fully squeezed by the pressure of the protrusion 21. The slide rod 20 is fixedly connected in the cavity 803.

[0024] Preferably, a spring 18 is fixedly connected between the pressure plate 19 and the inner wall of the bed board 8 at the outer side of the slide rod 20. When the pressure plate 19 squeezes the bladder 17, the spring 18 will accumulate kinetic energy due to its own elastic deformation. After the protrusion 21 separates from the pressure plate 19, the spring 18 can push the pressure plate 19 to pull the bladder 17 back to its inflated state. The pressure plate 19 is provided with a slot 1901 and a through groove 802 is provided at the bottom of one side of the cavity 803. A protrusion 21 is fixedly connected to one side of the pedal 15. When the pedal 15 deflects, the protrusion 21 enters the cavity 803 from the through groove 802 and engages with the slot 1901.

[0025] Preferably, the piston assembly includes two piston cylinders 24 and a piston rod 25 that passes through the two piston cylinders 24 and is close to one end of each other. A piston is fixedly connected to one end of the piston rod 25 in the piston cylinder 24. A pipe 23 is fixedly connected between the bladder 17 and the two piston cylinders 24. The two piston cylinders 24 are respectively fixedly connected to the top ends on both sides of the cavity 803.

[0026] Preferably, a groove 801 is provided at the top of one side of the cavity 803, and a support plate 22 is slidably connected at both ends inside the groove 801. The support plate 22 is fixedly connected to the end of the piston rod 25 outside the piston cylinder 24. The collar 14 includes two semi-circular rings, and the two rings are respectively fixedly connected to one end of the two support plates 22.

[0027] Working principle: When using this device for inverted traction, you can stand on the two pedals 15 with your back against the bed board 8, and let your shoulders fit into the two shoulder supports 13, while holding the two handles 12. Then, by swinging the foot, the pedal 15 can be driven to rotate from an inclined state to a perpendicular state to the bed board 8. During this process, the pedal 15 can drive the protrusion 21 into the slide groove 801, so that the protrusion 21 can push the pressing plate 19 to press the bladder 17 until the protrusion 21 deflects into the slot 1901, and the protrusion 21 will engage with the pressing plate 19. At this time, the compression plate 19 can compress the bladder 17 to the maximum extent and allow the pressure transmission medium inside to enter the piston cylinder 24 from the pipe 23. Then, the piston rod 25 moves through the piston, so that the two piston rods 25 can move at the same time to push the two support plates 22 closer to each other, thereby putting the collar 14 into a fastened and locked state to hold and fix the user's legs. After that, the motor 11 can be started. The motor 11 drives the worm wheel 9 to rotate through the worm gear 10. The worm wheel 9 drives the toothed roller 3 to rotate through the central shaft 4. The toothed roller 3 drives the bed board 8 to rotate by meshing with the toothed plate 5, so as to adjust its angle. When the rotation angle of the bed board 8 is adjusted to more than 90°, the patient can be suspended in reverse traction. During this process, the angle of the bed board 8 can be adjusted by controlling the start, stop and forward / reverse rotation of the motor 11, so as to gradually carry out the inverted traction. Since the process of the worm gear 10 driving the worm wheel 9 has a reverse self-locking effect, it can maintain the stability of the bed board 8 after the angle is adjusted, so as to cooperate with the collar 14 that forms a mechanical lock to ensure the safety of the user. In addition, when the rotation angle of the bed board 8 is adjusted to more than 90°, the user will slide slightly with his head down and feet up due to his own weight. This allows the user's feet to leave the pedal 15, thus preventing the user from accidentally touching the pedal 15 and causing the collar 14 to loosen. After completing the inverted traction exercise, the bed board 8 can be adjusted to reverse its tilt to return to its original position. Then, the feet can be swung to make the pedal 15 return from vertical to tilted. At this time, the spring 18 can push the pressure plate 19 through its own elasticity, and make it pull the bladder 17 to expand, thereby drawing the pressure medium in the piston cylinder 24 back into the bladder 17. Therefore, the piston rod 25 will retract to open the collar 14 so that the user can leave.

[0028] Example 2 See attached document Figure 5 This application provides a medical inverted traction device. Compared with embodiment 1, in order to ensure the user's comfort during inverted traction, pads 26 are fixedly connected to the inner side of the shoulder support 13, the outer side of the handle 12, and the inner side of the collar 14.

[0029] Working principle: The pads 26 located on the inner side of the shoulder support 13, the outer side of the handle 12, and the outer side of the collar 14 can cushion and protect the user's body when these three parts come into contact with the user's body, so as to prevent the user from being injured by gravity when the body is in an upside-down state.

[0030] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A medical inverted traction device, comprising a base (1), characterized in that: The base (1) is provided with a bed board (8) and a drive mechanism for driving the bed board (8) to rotate. The bed board (8) is located in the middle of the base (1). The bed board (8) is provided with a footboard (15), a collar (14) for hugging the legs, and a locking mechanism for locking the collar (14); The locking mechanism includes a bladder (17) and a piston assembly, wherein the pedal (15) moves the piston assembly by deflecting and squeezing the bladder (17) to drive the collar (14) to close.

2. The medical inverted traction device according to claim 1, characterized in that, Side plates (2) are fixedly connected to the middle of the left and right sides of the top of the base (1). The top of the two side plates (2) are rotatably connected to the same rotating shaft (7). The bed board (8) is fixedly connected to the rotating shaft (7). The same central shaft (4) is provided through the bottom between the two side plates (2). The outside of the central shaft (4) is connected to a toothed roller (3) and a worm gear (9) by a key.

3. A medical inverted traction device according to claim 2, characterized in that, The drive mechanism includes a motor (11) fixedly connected to the base (1). One end of the output shaft of the motor (11) is connected to a worm (10) via a key. The worm (10) meshes with a worm wheel (9). An arc-shaped toothed plate (5) is fixedly connected to the back of the bed board (8). The toothed plate (5) meshes with a toothed roller (3). An arc-shaped support plate (6) is fixedly connected to the inner side of the toothed plate (5).

4. A medical inverted traction device according to claim 1, characterized in that, The top two sides of the front of the bed board (8) are fixedly connected with "7"-shaped shoulder supports (13), the middle two sides of the front of the bed board (8) are fixedly connected with handles (12), and the bottom two sides of the front of the bed board (8) are fixedly connected with base plates (16). The two pedals (15) are respectively rotatably connected to the top of the two base plates (16) through damping shafts.

5. A medical inverted traction device according to claim 4, characterized in that, The bed board (8) has a cavity (803) at the top of the bottom plate (16). A pressure plate (19) is provided at the bottom of the cavity (803). The bladder (17) is fixedly connected between the pressure plate (19) and the inner wall of the bed board (8) away from the pedal (15). A slide rod (20) is provided through both sides of the pressure plate (19). The slide rod (20) is fixedly connected in the cavity (803).

6. A medical inverted traction device according to claim 5, characterized in that, A spring (18) is fixedly connected between the inner wall of the pressure plate (19) and the bed board (8) at the outer side of the slide rod (20). A slot (1901) is provided on the pressure plate (19). A through groove (802) is provided at the bottom of one side of the cavity (803). A protrusion (21) is fixedly connected to one side of the pedal (15). When the pedal (15) deflects, the protrusion (21) enters the cavity (803) from the through groove (802) and engages with the slot (1901).

7. A medical inverted traction device according to claim 6, characterized in that, The piston assembly includes two piston cylinders (24) and a piston rod (25) that passes through the two piston cylinders (24) and is close to one end of each other. The piston rod (25) is fixedly connected to a piston at one end in the piston cylinder (24). The bladder (17) is fixedly connected to the two piston cylinders (24) by a pipe (23). The two piston cylinders (24) are respectively fixedly connected to the top ends on both sides of the cavity (803).

8. A medical inverted traction device according to claim 7, characterized in that, A groove (801) is provided at the top of one side of the cavity (803). Support plates (22) are slidably connected at both ends inside the groove (801). The support plates (22) are fixedly connected to one end of the piston rod (25) outside the piston cylinder (24). The collar (14) includes two semi-circular rings, and the two rings are fixedly connected to one end of the two support plates (22).

9. A medical inverted traction device according to claim 4, characterized in that, Pads (26) are fixedly connected to the inner side of the shoulder support (13), the outer side of the handle (12), and the inner side of the collar (14).

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