Multi-angle adjustable cervical vertebra traction device

Abstract

The utility model relates to medical instrument technical field especially is concerned with a multi -angle regulation cervical vertebra tractor, including support frame, fixed plate, guide rod, butt joint stem, angle adjusting mechanism, cervical vertebra traction frame and pull rope, support frame top is provided with fixed plate, the bottom of fixed plate is fixed with the guide rod perpendicularly, the bottom coaxial sliding connection of guide rod has butt joint stem, the bottom of butt joint stem is connected with angle adjusting mechanism, and the bottom of angle adjusting mechanism is connected with cervical vertebra traction frame, and is fixed with the thread reel on the lateral wall of support frame, and the pull rope is wound on the thread reel. The utility model discloses through the coaxial sliding structure of support frame, fixed plate, guide rod and butt joint stem, cooperate the traction of thread reel and pull rope, can flexibly adjust cervical vertebra traction frame height, and angle adjusting mechanism provides basic structure for cervical vertebra traction frame angle adjustment, breaks through the limitation that traditional pull rope can only traction, and cannot adjust angle, and preliminarily realizes the dual -purpose adjustment function of height + angle.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a multi-angle adjustable cervical traction device. Background Technology

[0002] In cervical spine rehabilitation, chair-type cervical traction devices have become an important auxiliary tool in clinical treatment due to their unique advantages. The traction device adopts an ergonomic design based on a sitting posture, is easy to operate, and medical staff can quickly complete the device adjustment and fixation. When patients use the traction device in the standardized treatment environment of the hospital, they can receive real-time monitoring and guidance from a professional medical team. This not only ensures the accurate execution of the treatment plan, but also allows for adjustments to treatment parameters based on the patient's immediate feedback, greatly improving the standardization and effectiveness of cervical spine rehabilitation treatment and providing patients with higher quality and more efficient medical services.

[0003] Currently, most mainstream chair-type cervical traction devices adopt a rope-type traction structure, which connects the neck fixation component and the traction drive mechanism through a rope, and uses the longitudinal tension of the rope to achieve neck traction.

[0004] In related technologies, because the traction component is a flexible rope, it can only provide linear traction force along the axis of the rope and cannot form a stable angle-adjustable support structure. In actual use, the patient's neck can only maintain a fixed posture with the traction direction of the rope. It is impossible to adjust the treatment angles such as forward flexion, backward extension, and lateral flexion of the neck according to the physiological curvature of the cervical spine, the location of the lesion, and individual body differences. As a result, the traction force only acts on the entire neck and it is difficult to accurately adapt to the pathological needs of different patients. It can only achieve basic traction function and cannot achieve targeted rehabilitation treatment effect, which restricts the clinical application value of chair-type cervical traction devices. Utility Model Content

[0005] To address the problem that current mainstream chair-type cervical traction devices, which use flexible ropes and can only provide linear traction, cannot adjust the neck treatment angle according to the patient's cervical curvature, lesion location, and individual body posture, thus only achieving basic traction function and failing to meet targeted rehabilitation needs, thereby limiting their clinical application value, this utility model provides a multi-angle adjustable cervical traction device.

[0006] The cervical traction device with multi-angle adjustment provided by this utility model adopts the following technical solution: A multi-angle adjustable cervical traction device, comprising: A support frame is provided with a fixed plate at the top, a guide rod is vertically fixed at the bottom of the fixed plate, a docking rod is slidably connected to the bottom of the guide rod, an angle adjustment mechanism is connected to the bottom of the docking rod, a cervical traction frame is connected to the bottom of the angle adjustment mechanism, and a cable reel is fixed on the side wall of the support frame. A pull rope is wound on the cable reel, one end of the pull rope passes through the fixed plate and the guide rod and is fixed to the top of the docking rod. The angle adjustment mechanism for adjusting the angle of the cervical traction frame includes a support, an extension frame, a C-shaped support rod, an adjustment rod, and a drive assembly. The two ends of the T-shaped support are rotatably connected within the support. One end of the C-shaped support rod is rotatably connected to the center end of the adjustment rod. The adjustment rod is rotatably connected to the other end of the C-shaped support rod, and the cervical traction frame is connected to the bottom end of the adjustment rod. The drive assembly is disposed within the support.

[0007] By adopting the above technical solution, the height of the cervical traction frame can be flexibly adjusted through the coaxial sliding structure of the support frame, fixing plate, guide rod and connecting rod, combined with the traction of the cable reel and the pull rope; the angle adjustment mechanism provides the basic structure for the angle adjustment of the cervical traction frame, breaking through the limitation of traditional pull ropes that can only pull and cannot adjust the angle, and initially realizing the dual adjustment function of "height + angle".

[0008] Optionally, the drive assembly includes a first double-sided bevel gear, a second double-sided bevel gear, and a driven bevel gear. The first and second double-sided bevel gears are coaxially rotatably connected to the U-shaped support rod and symmetrically arranged on both sides of the extension frame. The driven bevel gear is coaxially fixed to the top of the adjusting rod and meshes between the internal teeth of the first and second double-sided bevel gears.

[0009] By adopting the above technical solution, the first double-sided bevel gear, the second double-sided bevel gear and the passive bevel gear in the drive assembly mesh to form a symmetrical transmission structure, which can drive the adjustment rod to rotate stably, thereby accurately controlling the angle of the cervical traction frame, ensuring balanced force during angle adjustment and avoiding unilateral deviation.

[0010] Optionally, the drive assembly further includes a first active bevel gear and a second active bevel gear. The first active bevel gear is rotatably connected to one side of the support and meshes with the external teeth of the first double-sided bevel gear. The second active bevel gear is rotatably connected to the other side of the support and meshes with the external teeth of the second double-sided bevel gear.

[0011] By adopting the above technical solution, the power transmission path is refined by utilizing the first and second active bevel gears to mesh with the external teeth of the first and second double-sided bevel gears, respectively. This enables independent drive control of the double-sided bevel gears, providing more flexible transmission support for subsequent precise angle adjustment, and expanding the power adjustment range of the drive components.

[0012] Optionally, the drive assembly further includes a worm gear, a servo motor, and a worm. The two worm gears are coaxially fixed to the first and second drive bevel gears, respectively. The servo motor is fixed on the support, and the worm is coaxially fixed to the output shaft of the servo motor and meshes with the worm gear.

[0013] By adopting the above technical solution and utilizing the self-locking characteristics of the worm gear structure, the position can be stably locked after angle adjustment to prevent the angle from changing on its own during traction; and the motor drive replaces manual adjustment, improving the automation and accuracy of angle adjustment and reducing the difficulty of operation for medical staff.

[0014] Optionally, the first double-sided bevel gear and the second double-sided bevel gear have the same diameter, and the first drive bevel gear and the second drive bevel gear have the same diameter.

[0015] By adopting the above technical solution, using gear sets of the same diameter ensures that the transmission speed on both sides is consistent, avoiding uneven force on the adjusting rod and angle deviation caused by differences in gear size, and further improving the synchronization and accuracy of angle adjustment.

[0016] Optionally, the first double-sided bevel gear, the second double-sided bevel gear, the first drive bevel gear, and the second drive bevel gear are all helical gear structures.

[0017] By adopting the above technical solution, compared with the spur gear structure, the meshing contact area is increased, the impact force and noise during the transmission process are reduced, the power transmission stability is improved, and the service life of gear components is extended.

[0018] Optionally, a steering wheel is rotatably connected inside the fixed plate, and the pull rope passes around the steering wheel.

[0019] By adopting the above technical solution, the direction of the pull rope is changed by using the steering wheel, so that the pull rope is subjected to more gentle force, avoiding direct friction between the pull rope and the inner wall of the fixed plate and guide rod, reducing pull rope wear, extending the service life of the pull rope, and ensuring smooth traction process without jamming.

[0020] Optionally, the support frame is a telescopic structure and is fixed in conjunction with the external seat.

[0021] By adopting the above technical solution, the support frame is a telescopic structure that can adjust its length according to the height of the external seat and the usage scenario, adapting to external seats of different sizes, improving the flexibility of equipment use, and expanding the range of applicable scenarios.

[0022] Optionally, a tension gauge may also be provided on the pull rope.

[0023] By adopting the above technical solution and using a force gauge to monitor the traction force in real time, medical staff can accurately control the traction intensity according to the patient's tolerance, avoiding cervical spine injury due to excessive traction or affecting the treatment effect due to insufficient traction, thus improving the safety and accuracy of treatment.

[0024] Optionally, the bottom end of the adjusting rod is provided with a through hole, and the top center of the cervical traction frame is provided with a hanging ear, which is a detachable hook in the through hole.

[0025] By adopting the above technical solution and using a detachable connection method, it is convenient to clean, disinfect, replace or repair the cervical traction frame, thereby reducing equipment maintenance costs and operational complexity.

[0026] In summary, this utility model has at least one of the following beneficial technical effects: By utilizing the coaxial sliding structure of the support frame, fixing plate, guide rod and connecting rod, and in conjunction with the traction of the cable reel and pull rope, the height of the cervical traction frame can be flexibly adjusted; the angle adjustment mechanism provides the basic structure for the angle adjustment of the cervical traction frame, breaking through the limitation of traditional pull ropes that can only pull and cannot adjust the angle, and initially realizing the dual adjustment function of "height + angle". By utilizing the meshing of the first double-sided bevel gear, the second double-sided bevel gear, and the passive bevel gear in the drive assembly to form a symmetrical transmission structure, the adjusting rod can be driven to rotate stably, thereby precisely controlling the angle of the cervical traction frame. This ensures balanced force during angle adjustment and avoids unilateral deviation. Furthermore, the first and second active bevel gears mesh with the external teeth of the first and second double-sided bevel gears, respectively, refining the power transmission path and enabling independent drive control of the double-sided bevel gears. This provides more flexible transmission support for subsequent precise angle adjustment and expands the power adjustment range of the drive assembly. By utilizing the self-locking characteristics of the worm gear structure, the position can be stably locked after angle adjustment to prevent the angle from changing on its own during traction; and the motor drive replaces manual adjustment, improving the automation and accuracy of angle adjustment and reducing the difficulty of operation for medical staff. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the external structure of a multi-angle adjustable cervical traction device in this embodiment.

[0028] Figure 2 This is a partially enlarged structural diagram of this embodiment.

[0029] Figure 3 This is a schematic diagram of the overall connection structure of the connecting rod, angle adjustment mechanism and cervical traction frame in this embodiment.

[0030] Figure 4 This is a schematic diagram of the angle adjustment mechanism in this embodiment.

[0031] Figure 5 This is a schematic diagram of the worm gear and worm connection structure in this embodiment.

[0032] Figure 6 This is a schematic diagram of the tension gauge connection structure in this embodiment.

[0033] Explanation of reference numerals in the attached figures: 1. Support frame; 2. Fixing plate; 3. Guide rod; 4. Connecting rod; 5. Angle adjustment mechanism; 51. Support seat; 52. Extension frame; 53. C-shaped support rod; 54. Adjusting rod; 55. First double-sided bevel gear; 56. Second double-sided bevel gear; 57. Passive bevel gear; 58. First active bevel gear; 59. Second active bevel gear; 510. Worm gear; 511. Servo motor; 512. Worm; 6. Cervical traction frame; 7. Pull rope; 8. Cable reel; 9. Tension gauge. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-6 The present invention will be described in further detail below.

[0035] This utility model discloses a multi-angle adjustable cervical traction device.

[0036] It should be noted that in the description of this utility model, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Reference Figure 1 and Figure 2A multi-angle adjustable cervical traction device includes a support frame 1, a fixing plate 2, a guide rod 3, a connecting rod 4, an angle adjustment mechanism 5, a cervical traction frame 6, and a pull rope 7. The support frame 1 has a fixing plate 2 at its top, and a guide rod 3 is vertically fixed to the bottom of the fixing plate 2. The bottom of the guide rod 3 is coaxially slidably connected to the connecting rod 4. The bottom of the connecting rod 4 is connected to the angle adjustment mechanism 5, and the bottom of the angle adjustment mechanism 5 is connected to the cervical traction frame 6. A cable winder 8 is fixed to the side wall of the support frame 1, and the pull rope 7 is wound on the cable winder 8. One end of the pull rope 7 passes through the fixing plate 2 and the guide rod 4. The guide rod 3 is fixed to the top of the connecting rod 4; the angle adjustment mechanism 5 for adjusting the angle of the cervical traction frame 6 includes a support 51, an extension frame 52, a C-shaped support rod 53, an adjustment rod 54 and a drive assembly. Through the coaxial sliding structure of the support frame 1, the fixing plate 2, the guide rod 3 and the connecting rod 4, and with the traction of the cable reel 8 and the pull rope 7, the height of the cervical traction frame 6 can be flexibly adjusted; the angle adjustment mechanism 5 provides the basic structure for the angle adjustment of the cervical traction frame 6, breaking through the limitation of traditional pull ropes that can only pull and cannot adjust the angle, and initially realizing the dual adjustment function of "height + angle".

[0038] Specifically, the two ends of the T-shaped support 51 are rotatably connected inside the support 51, one end of the C-shaped support rod 53 is rotatably connected to the center end of the adjusting rod 54, the adjusting rod 54 is rotatably connected to the other end of the C-shaped support rod 53, and the cervical traction frame 6 is connected to the bottom end of the adjusting rod 54; the drive assembly is set inside the support 51.

[0039] Reference Figure 3 and Figure 4 In this embodiment of the utility model, the driving component includes a first double-sided bevel gear 55, a second double-sided bevel gear 56, and a passive bevel gear 57. The first double-sided bevel gear 55, the second double-sided bevel gear 56, and the passive bevel gear 57 in the driving component mesh to form a symmetrical transmission structure, which can drive the adjusting rod 54 to rotate stably, thereby precisely controlling the angle of the cervical traction frame 6, ensuring balanced force during angle adjustment, and avoiding unilateral deviation.

[0040] The first double-sided bevel gear 55 and the second double-sided bevel gear 56 are coaxially rotatably connected to the C-shaped support rod 53 and symmetrically arranged on both sides of the extension frame 52. The passive bevel gear 57 is coaxially fixed to the top of the adjusting rod 54 and meshes between the internal teeth of the first double-sided bevel gear 55 and the second double-sided bevel gear 56.

[0041] In this embodiment of the utility model, the drive assembly further includes a first active bevel gear 58 and a second active bevel gear 59. By utilizing the first active bevel gear 58 and the second active bevel gear 59 to mesh with the external teeth of the first double-sided bevel gear 55 and the second double-sided bevel gear 56 respectively, the power transmission path is refined, and independent drive control of the double-sided bevel gears is realized. This provides more flexible transmission support for subsequent precise angle adjustment and expands the power adjustment range of the drive assembly.

[0042] Specifically, the first drive bevel gear 58 is rotatably connected to one side of the support 51 and meshes with the external teeth of the first double-sided bevel gear 55, and the second drive bevel gear 59 is rotatably connected to the other side of the support 51 and meshes with the external teeth of the second double-sided bevel gear 56.

[0043] Reference Figure 5 and Figure 6 Specifically, in this embodiment of the present invention, the drive assembly further includes a worm gear 510, a servo motor 511, and a worm 512. The two worm gears 510 are coaxially fixed with the first active bevel gear 58 and the second active bevel gear 59, respectively. The servo motor 511 is fixed on the support 51. The worm 512 is coaxially fixed with the output shaft of the servo motor 511 and meshes with the worm gear 510. Utilizing the self-locking characteristic of the worm gear structure, the position can be stably locked after angle adjustment to prevent the angle from changing on its own during traction. Moreover, the motor drive replaces manual adjustment, improving the automation and accuracy of angle adjustment and reducing the difficulty of operation for medical personnel.

[0044] In this embodiment of the utility model, the first double-sided bevel gear 55 and the second double-sided bevel gear 56 have the same diameter, and the first driving bevel gear 58 and the second driving bevel gear 59 have the same diameter. The first double-sided bevel gear 55, the second double-sided bevel gear 56, the first driving bevel gear 58 and the second driving bevel gear 59 are all helical gear structures. By using gear sets with the same diameter, the transmission speed on both sides is ensured to be consistent, avoiding uneven force and angle deviation on the adjusting rod 54 due to differences in gear size. This further improves the synchronization and accuracy of angle adjustment. Compared with straight gear structures, it increases the meshing contact area, reduces the impact force and noise during transmission, improves the stability of power transmission, and extends the service life of gear components.

[0045] A steering wheel is rotatably connected inside the fixed plate 2. The pull rope 7 passes around the steering wheel and changes the traction direction of the pull rope 7 by using the steering wheel, so that the pull rope 7 is subjected to more gentle force, avoiding direct friction between the pull rope 7 and the inner wall of the fixed plate 2 and the guide rod 3, reducing wear on the pull rope 7, extending the service life of the pull rope 7, and ensuring smooth traction process without jamming.

[0046] Specifically, the support frame 1 is a telescopic structure and is fixed in conjunction with the external seat. The telescopic structure of the support frame 1 allows it to adjust its length according to the height of the external seat and the usage scenario, adapting to external seats of different sizes, improving the flexibility of equipment use, and expanding the range of applicable scenarios.

[0047] The pull rope 7 is also equipped with a tension gauge 9, which monitors the traction force in real time. This allows medical staff to accurately control the traction intensity according to the patient's tolerance, avoiding cervical spine injury due to excessive tension or affecting the treatment effect due to insufficient tension, thus improving the safety and accuracy of use.

[0048] The bottom end of the adjusting rod 54 has a through hole, and the top center of the cervical traction frame 6 has a hanging ear. The hanging ear is a detachable hook in the through hole. The detachable connection method makes it easy to clean, disinfect, replace or repair the cervical traction frame 6, reducing equipment maintenance costs and operational complexity.

[0049] The implementation principle of a multi-angle adjustable cervical traction device according to this utility model embodiment is as follows: First, adjust the length of the telescopic support frame 1 according to the external seat size, and fix it with the seat to complete the basic installation of the device; then, start the cable reel 8 on the side wall of the support frame 1 to reel in and unreel the pull rope 7; the pull rope 7 passes around the steering wheel in the fixed plate 2, passes through the fixed plate 2 and the guide rod 3, and the traction docking rod 4 slides coaxially along the guide rod 3, driving the bottom angle adjustment mechanism 5 and the cervical traction frame 6 to rise and fall until it is adjusted to a height that suits the patient's neck. The servo motor 511 on the support 51 in the angle adjustment mechanism 5 is started. The output shaft of the motor drives the worm 512 to rotate. The worm 512 meshes with two worm wheels 510, driving the first active bevel gear 58 and the second active bevel gear 59, which are respectively fixed coaxially with the worm wheels 510, to rotate. When the first active bevel gear 58 and the second active bevel gear 59 rotate in the same direction, the first double-sided bevel gear 55 and the second double-sided bevel gear 56 drive the passive bevel gear 57 to rotate. At this time, the adjusting rod 54 drives the cervical traction frame 6 to rotate around the axis as a whole. When the first active bevel gear 58 and the second active bevel gear 59 rotate in opposite directions, the first double-sided bevel gear 55 and the second double-sided bevel gear 56 are driven to lock each other through the passive bevel gear 57. At this time, the connecting end of the shaped support rod 53 and the extension frame 52 rotates, so as to achieve radial adjustment of the overall angle of the adjusting rod 54 and the cervical traction frame 6.

[0050] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A multi-angle adjustable cervical traction device, characterized in that, include: A support frame (1) is provided with a fixed plate (2) at the top of the support frame (1). A guide rod (3) is vertically fixed at the bottom of the fixed plate (2). A docking rod (4) is slidably connected to the bottom of the guide rod (3). An angle adjustment mechanism (5) is connected to the bottom of the docking rod (4). A cervical traction frame (6) is connected to the bottom of the angle adjustment mechanism (5). A winding device (8) is fixed on the side wall of the support frame (1). A pull rope (7) is wound on the winding device (8). One end of the pull rope (7) passes through the fixed plate (2) and the guide rod (3) and is fixed to the top of the docking rod (4). The angle adjustment mechanism (5) for adjusting the angle of the cervical traction frame (6) includes a support (51), an extension frame (52), a C-shaped support rod (53), an adjustment rod (54), and a drive assembly. The two ends of the T-shaped support (51) are rotatably connected inside the support (51). One end of the C-shaped support rod (53) is rotatably connected to the center end of the adjustment rod (54). The adjustment rod (54) is rotatably connected to the other end of the C-shaped support rod (53), and the cervical traction frame (6) is connected to the bottom end of the adjustment rod (54). The drive assembly is disposed inside the support (51).

2. The multi-angle adjustable cervical traction device according to claim 1, characterized in that, The drive assembly includes a first double-sided bevel gear (55), a second double-sided bevel gear (56), and a passive bevel gear (57). The first double-sided bevel gear (55) and the second double-sided bevel gear (56) are coaxially rotatably connected to the U-shaped support rod (53) and symmetrically arranged on both sides of the extension frame (52). The passive bevel gear (57) is coaxially fixed to the top of the adjusting rod (54) and meshes between the internal teeth of the first double-sided bevel gear (55) and the second double-sided bevel gear (56).

3. The multi-angle adjustable cervical traction device according to claim 2, characterized in that, The drive assembly further includes a first active bevel gear (58) and a second active bevel gear (59). The first active bevel gear (58) is rotatably connected to one side of the support (51) and meshes with the external teeth of the first double-sided bevel gear (55). The second active bevel gear (59) is rotatably connected to the other side of the support (51) and meshes with the external teeth of the second double-sided bevel gear (56).

4. The multi-angle adjustable cervical traction device according to claim 3, characterized in that, The drive assembly also includes a worm gear (510), a servo motor (511), and a worm (512). The two worm gears (510) are coaxially fixed with the first active bevel gear (58) and the second active bevel gear (59), respectively. The servo motor (511) is fixed on the support (51). The worm (512) is coaxially fixed with the output shaft of the servo motor (511) and meshes with the worm gear (510).

5. A multi-angle adjustable cervical traction device according to claim 3, characterized in that, The first double-sided bevel gear (55) and the second double-sided bevel gear (56) have the same diameter, and the first drive bevel gear (58) and the second drive bevel gear (59) have the same diameter.

6. A multi-angle adjustable cervical traction device according to claim 5, characterized in that, The first double-sided bevel gear (55), the second double-sided bevel gear (56), the first active bevel gear (58), and the second active bevel gear (59) are all helical gear structures.

7. The multi-angle adjustable cervical traction device according to claim 1, characterized in that, A steering wheel is rotatably connected inside the fixed plate (2), and the pull rope (7) passes around the steering wheel.

8. A multi-angle adjustable cervical traction device according to claim 1, characterized in that, The support frame (1) is a telescopic structure and is fixed in conjunction with the external seat.

9. A multi-angle adjustable cervical traction device according to claim 1, characterized in that, A tension gauge (9) is also installed on the pull rope (7).

10. A multi-angle adjustable cervical traction device according to claim 1, characterized in that, The bottom end of the adjusting rod (54) is provided with a through hole, and the top center of the cervical traction frame (6) is provided with a hanging ear, which is a detachable hook in the through hole.

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