Autonomously adjustable traction device for orthopedics department

Abstract

The utility model discloses an autonomously adjustable orthopaedic traction device which comprises a bed body, a pulley yoke arranged on the bed body, a traction rope arranged on the pulley yoke and a traction structure arranged at the tail part of the bed body, and an adjusting structure which is convenient for a patient to autonomously adjust the traction force of the traction structure is also arranged between the head and the tail of the bed body; wherein the traction structure comprises a bearing seat, a rope guide frame of a traction rope is movably connected to the bearing seat through two groups of vertical guide rails, a plurality of elastic connecting arms are further arranged on the rope guide frame, and a connecting plate capable of horizontally moving is further arranged between the two groups of vertical guide rails; and the quantity of the elastic connecting arms connected with the connecting plate is correspondingly changed along with the stroke change of the connecting plate, so that the traction force is adjusted. The utility model aims to provide the orthopedics traction device capable of being automatically adjusted, a mechanical linkage structure is adopted, a patient can adaptively adjust the traction force according to rehabilitation requirements of the patient, intervention of accompanying and medical staff is not needed, and the orthopedics traction device is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of rehabilitation equipment, in particular to an orthopedic traction device which can be adjusted autonomously. Background Art

[0002] Orthopedic traction is one of the commonly used rehabilitation methods in orthopedics. It relies on special traction belts and devices to perform traction exercises on certain parts of the human body. The purpose is to increase the intervertebral space and intervertebral foramen, relieve the compression of nerve roots and the twisting of vertebral arteries, relieve muscle spasms, and reposition the protruding intervertebral disc. For example, cervical traction for the treatment of cervical spondylosis, pelvic (lumbar) traction for the treatment of lumbar disc herniation, and functional traction to improve and enhance the function of limb joints, etc., generally use non-motorized traction devices with heavy hammers (or weights) as traction force, or motorized traction devices with electronic components for automatic control.

[0003] At present, for traditional multifunctional orthopedic traction devices, motorized traction is expensive, has high cost of use, has limited versatility, and is difficult to deploy on a large scale; while for non-motorized traction devices, the traction structure on the bed is mostly assembled by bending and welding round or square tubes, and the frame is assembled by the simplest knob locking. Before assembly, the locking piece is pre-installed on the installation pipe, and then the component cross tubes are inserted into the locking piece in turn, and the assembly is locked by the locking piece to ensure stable frame support and traction.

[0004] However, the heavy hammer or weight that provides real-time traction force in the non-motorized traction device is generally hung at the end of the bed. Considering the inconvenience of limb movement of orthopedic patients, it is difficult for them to independently adjust the real-time traction force. Therefore, if the real-time traction force needs to be adjusted, the caregiver and medical staff need to intervene, which is inconvenient to use, especially when the caregiver and medical staff are unable to spare time, which will hinder the patient's traction rehabilitation process. In view of this, we propose an orthopedic traction device that can be adjusted autonomously. Utility Model Content

[0005] The utility model aims to provide an orthopedic traction device which can be adjusted autonomously and adopts a mechanical linkage structure. Patients can adaptively adjust the traction force according to their own rehabilitation needs without the need for accompanying care and medical personnel intervention. The device is more convenient to use and has a wider application, so as to solve the technical problems described in the background technology.

[0006] In order to achieve the above object, the utility model first discloses a technical solution:

[0007] A self-adjustable orthopedic traction device comprises a bed, a pulley frame arranged on the bed, a traction rope arranged on the pulley frame, and a traction structure arranged at the tail of the bed, wherein an adjustment structure is arranged between the head and the tail of the bed for facilitating the patient to self-adjust the traction force of the traction structure; wherein the traction structure comprises a bearing seat, a guide rope frame on the bearing seat is movably connected to the traction rope through two groups of vertical guide rails, a plurality of elastic connecting arms are arranged on the guide rope frame, and a horizontally movable connecting plate is arranged between the two groups of vertical guide rails; as the stroke of the connecting plate changes, the number of elastic connecting arms connected to it changes accordingly, thereby realizing the adjustment of the traction force.

[0008] Furthermore, the connecting plate is provided with an "I"-shaped hanging groove and an "L"-shaped hanging groove, the "I"-shaped hanging groove is used as a closed hanging groove for connecting the main elastic connecting arm, and the "L"-shaped hanging groove is used as an open hanging groove for connecting the spare elastic connecting arm, and the horizontal groove lengths of each of the open hanging grooves are set differently to adapt to the different strokes of the connecting plate.

[0009] Furthermore, the elastic connecting arm includes a sliding seat adapted to the rope guide frame and a snap ring adapted to the connecting plate, and a spring is connected between the sliding seat and the snap ring.

[0010] Furthermore, the adjustment structure includes a transmission main shaft arranged between the head and tail of the bed, the front end of the transmission main shaft is connected to the handwheel drive assembly through a bevel gear assembly reversing transmission, and the rear end of the transmission main shaft is connected to the horizontal telescopic assembly through a worm gear assembly reversing transmission.

[0011] Furthermore, the handwheel drive assembly includes a transmission shaft connected to the output shaft of the bevel gear assembly, and a bearing seat for supporting the transmission shaft, and a handwheel body is connected to the end of the transmission shaft.

[0012] Furthermore, a gear adjustment hole and an elastic bumping ball which cooperate with each other are arranged between the hand wheel body and the bearing seat.

[0013] Furthermore, the horizontal telescopic assembly includes a supporting upright plate and a telescopic frame inserted in the supporting upright plate, the telescopic frame is connected to the plate end of the connecting plate, and its telescopic position is controlled by a screw connected to the output shaft of the worm gear assembly. The horizontal telescopic assembly includes a supporting upright plate and a telescopic frame inserted in the supporting upright plate, the telescopic frame is connected to the plate end of the connecting plate, and its telescopic position is controlled by a screw connected to the output shaft of the worm gear assembly.

[0014] Furthermore, a pull ring is connected to the end of the traction rope.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. With the cooperation of the traction structure and the adjustment structure, orthopedic patients can independently adjust the real-time traction force during continuous traction rehabilitation. The operation is convenient and does not require external intervention from caregivers and medical staff. The traction force can be increased and decreased quickly according to their own needs, thereby reducing the patient's dependence on caregivers and medical staff during traction rehabilitation training, and is also conducive to ensuring the effect of traction rehabilitation treatment;

[0017] 2. Both the traction structure and the adjustment structure adopt mechanical linkage, which abandons the reliance of the motorized traction device on electronic components in the prior art, significantly reduces the cost, and is conducive to large-scale use in various medium and small medical institutions, with broad prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0019] Figure 1 A three-dimensional diagram (I) of the self-adjustable orthopedic traction device in Example 1;

[0020] Figure 2 It is a front view of the self-adjustable orthopedic traction device in Example 1;

[0021] Figure 3 A three-dimensional diagram (II) of the self-adjustable orthopedic traction device in Example 1;

[0022] Figure 4 A three-dimensional diagram of the self-adjustable orthopedic traction device in Example 1 (III);

[0023] Figure 5 A three-dimensional diagram (four) of the self-adjustable orthopedic traction device in Example 1;

[0024] Figure 6 for Figure 5 A partial enlarged view of the middle A part;

[0025] Figure 7 It is a right view of the self-adjustable orthopedic traction device in the first embodiment;

[0026] Figure 8 for Figure 7 A partial enlarged view of part B in the middle;

[0027] Markings in the figure: 1-bed, 2-pulley frame, 3-traction rope, 4-traction structure, 5-adjustment structure, 401-bearing seat, 402-vertical guide rail, 403-guide rope frame, 404-elastic connecting arm, 405-connecting plate, 406-closed hanging groove, 407-open hanging groove, 408-sliding seat, 409-clamping ring, 410-spring, 411-slide, 412, limit block, 501-transmission main shaft, 502-bevel gear assembly, 503-handwheel drive assembly, 504-worm gear assembly, 505-horizontal telescopic assembly, 506-rotating shaft, 507-bearing seat, 508-handwheel body, 509-gear adjustment hole, 510-elastic bumper, 511-support vertical plate, 512-telescopic frame, 513-screw, 301-pull ring. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0030] Figures 1 to 8 The first embodiment of the utility model is shown: an orthopedic traction device that can be adjusted independently, including a bed body 1, a pulley frame 2 arranged on the bed body 1, a traction rope 3 arranged on the pulley frame 2, and a traction structure 4 arranged at the tail of the bed body 1, and an adjustment structure 5 is also arranged between the head and the tail of the bed body 1 to facilitate the patient to independently adjust the traction force of the traction structure 4; wherein: the traction structure 4 includes a bearing seat 401, a guide rope frame 403 on the bearing seat 401 is movably connected to the traction rope 3 through two groups of vertical guide rails 402, a plurality of elastic connecting arms 404 are also arranged on the guide rope frame 403, and a horizontally movable connecting plate 405 is also arranged between the two groups of vertical guide rails 402; as the stroke of the connecting plate 405 changes, the number of the elastic connecting arms 404 connected to it changes accordingly, thereby realizing the adjustment of the traction force.

[0031] In specific implementation, the elastic connecting arm 404 can be divided into a main elastic connecting arm 404 and a spare elastic connecting arm 404. The connecting plate 405 is provided with an "I"-shaped hanging groove and an "L"-shaped hanging groove. The "I"-shaped hanging groove is used as a closed hanging groove 406 to connect the main elastic connecting arm 404, and the "L"-shaped hanging groove is used as an open hanging groove 407 to connect the spare elastic connecting arm 404. The horizontal groove lengths of each open hanging groove 407 are set differently to adapt to the different strokes of the connecting plate 405. Specifically, the elastic connecting arm 404 includes a sliding seat 408 adapted to the rope guide frame 403 and a snap ring 409 adapted to the connecting plate 405, and a spring 410 is also connected between the sliding seat 408 and the snap ring 409.

[0032] by Figure 2For example, two closed hanging grooves 406 (406a, 406b) are provided on the plate surface of the connecting plate 405, and three open hanging grooves 407 (407a, 407b, 407c) are provided between the two closed hanging grooves 406. It is assumed that the length of the two closed hanging grooves (406a, 406b) is L1, the lengths of the horizontal groove bodies of the three open hanging grooves (407a, 407b, 407c) are L2, L3, L4 respectively, the widths of the vertical groove bodies of the three open hanging grooves (407a, 407b, 407c) are all L5, and the width of the retaining rings (409a, 409b, 409c, 409d, 409e) is L6, then L1≥L4>L3>L2>L5≥L6. In the initial position, the snap rings (409a, 409e) are respectively hung in two closed hanging grooves (406a, 406b), and the snap rings (409b, 409c, 409d) are respectively hung in three open hanging grooves (407a, 407b, 407c). When the connecting plate 405 moves horizontally to the right by L2-L6 under the action of the adjusting structure 5, at this time, only the snap ring 409b hung in the open hanging groove 407a can be detached from the connecting plate 405 when the rope guide frame 403 is forced to move upward; when the connecting plate 405 moves horizontally to the right by L3-L6 under the action of the adjusting structure 5, at this time, the snap ring 409b hung in the open hanging groove 407a and the snap ring 409c hung in the open hanging groove 407b can be detached from the connecting plate 405 when the rope guide frame 403 is forced to move upward; when the connecting plate 405 is adjusted When the structure 5 is moved horizontally from L4 to L6, the snap ring 409b, snap ring 409c and snap ring 409d in the open hanging groove 407a, which are hung in the open hanging groove 407b, can be separated from the connecting plate 405 when the rope guide frame 403 is forced to move upward; therefore, by adjusting the horizontal rightward stroke of the connecting plate 405, the snap rings (409b, 409c, 409d) can be separated from the open hanging grooves (407a, 407b, 407c) one by one, thereby achieving a decrease in traction. It is worth noting that after the snap rings (409b, 409c, 409d) are all separated from the connecting plate 405, in order to achieve an increase in traction, it is necessary to adjust the connecting plate 405 back to the initial position by adjusting the structure 5 and repeat the above operation to achieve a suitable traction.

[0033] from Figures 4 to 6It can be seen that in this embodiment, the adjustment structure 5 includes a transmission main shaft 501 disposed between the head and the tail of the bed body 1, the head end of the transmission main shaft 501 is connected to the handwheel driving assembly 503 through the bevel gear assembly 502, and the end of the transmission main shaft 501 is connected to the horizontal telescopic assembly 505 through the worm gear assembly 504. The handwheel driving assembly 503 includes a transmission shaft 506 connected to the output shaft of the bevel gear assembly 502, and a bearing seat 507 for supporting the transmission shaft 506, and a handwheel body 508 is connected to the end of the transmission shaft 506.

[0034] like Figure 8 As shown, preferably, a gear adjustment hole 509 and an elastic bump ball 510 that cooperate with each other are further provided between the hand wheel body 508 and the bearing seat 507. The gear adjustment hole 509 and the elastic bump ball 510 can make the gear adjustment clearer, so that the patient can judge the translation position of the connecting plate 405 by himself, so as to ensure that there is enough elastic connecting arm 404 to reach the traction effect, thereby meeting the patient's demand for traction force.

[0035] from Figure 6 It can be seen that in order to push the connection plate 405 to translate, the horizontal telescopic assembly 505 includes a support plate 511 and a telescopic frame 512 inserted in the support plate 511, the telescopic frame 512 is connected to the plate end of the connection plate 405, and its telescopic position is controlled by a screw 513 connected to the output shaft of the worm gear assembly 504. The horizontal telescopic assembly 505 includes a support plate 511 and a telescopic frame 512 inserted in the support plate 511, the telescopic frame 512 is connected to the plate end of the connection plate 405, and its telescopic position is controlled by a screw 513 connected to the output shaft of the worm gear assembly 504. When the patient rotates the hand wheel body 508, the torque is transmitted to the transmission main shaft 501 through the rotating shaft 506 and the bevel gear assembly 502, and the transmission main shaft 501 then transmits the torque to the screw 513 through the worm gear assembly 504. Under the action of the screw, the telescopic frame 512 can be horizontally telescopic, thereby driving the connecting plate 405 to move horizontally. It should be noted that in order to ensure the stable connection between the connecting plate 405 and the bearing seat 401, a slide 411 for the connecting plate 405 to slide is also provided on the bearing seat 401; in order to prevent the guide rope frame 403 from being forced to transition away from the vertical guide rail 402, a limit block 412 is also provided at the top of the vertical guide rail 402.

[0036] See also Figure 1 and Figure 3 In order to facilitate the patient to continue traction rehabilitation training, a pull ring 301 is also connected to the end of the traction rope 3.

[0037] To sum up, with the cooperation of the traction structure 4 and the adjustment structure 5, orthopedic patients can independently complete the real-time adjustment of the traction force during the continuous traction rehabilitation process. The operation is convenient, and no external intervention from accompanying caregivers and medical staff is required. The traction force can be quickly increased and decreased according to their own needs, thereby reducing the patient's dependence on accompanying caregivers and medical staff during traction rehabilitation training, and is also conducive to ensuring the effect of traction rehabilitation treatment. The traction structure 4 and the adjustment structure 5 both adopt a mechanical linkage method, which abandons the dependence of the motorized traction device on electronic components in the existing technology, significantly reducing the cost, which is conducive to large-scale use in various medium and small medical institutions, and has broad prospects.

[0038] Finally, it should be noted that the technical solution disclosed above is only a preferred embodiment of the present utility model, and it certainly cannot be used to limit the scope of rights of the present utility model. Ordinary technicians in this field can understand that all or part of the processes of the above-mentioned embodiments and equivalent changes made according to the claims of the present utility model still fall within the scope covered by the utility model.

Claims

1. An orthopedic traction device that can be adjusted autonomously, comprising a bed, a pulley frame arranged on the bed, a traction rope arranged on the pulley frame, and a traction structure arranged at the rear of the bed, characterized in that: An adjustment structure is also provided between the head and the tail of the bed body to facilitate the patient to independently adjust the traction force of the traction structure; wherein: the traction structure includes a bearing seat, a rope guide frame on which a traction rope is movably connected through two groups of vertical guide rails, a plurality of elastic connecting arms are also provided on the rope guide frame, and a horizontally movable connecting plate is also provided between the two groups of the vertical guide rails; as the stroke of the connecting plate changes, the number of elastic connecting arms connected to it changes accordingly, thereby realizing the adjustment of the traction force.

2. The self-adjustable orthopedic traction device according to claim 1, characterized in that: The connecting plate is provided with an "I"-shaped hanging groove and an "L"-shaped hanging groove. The "I"-shaped hanging groove is used as a closed hanging groove for connecting the main elastic connecting arm, and the "L"-shaped hanging groove is used as an open hanging groove for connecting the spare elastic connecting arm. The horizontal groove lengths of each open hanging groove are set differently to adapt to the different strokes of the connecting plate.

3. The self-adjustable orthopedic traction device according to claim 1 or 2, characterized in that: The elastic connecting arm comprises a sliding seat adapted to the rope guide frame and a snap ring adapted to the connecting plate, and a spring is connected between the sliding seat and the snap ring.

4. The self-adjustable orthopedic traction device according to claim 1, characterized in that: The adjustment structure includes a transmission main shaft arranged between the head and tail of the bed, the head end of the transmission main shaft is connected to a handwheel drive assembly through a bevel gear assembly, and the tail end of the transmission main shaft is connected to a horizontal telescopic assembly through a worm gear assembly.

5. The self-adjustable orthopedic traction device according to claim 4, characterized in that: The handwheel driving assembly comprises a transmission shaft connected to the output shaft of the bevel gear assembly and a bearing seat for supporting the transmission shaft. A handwheel body is connected to the end of the transmission shaft.

6. The self-adjustable orthopedic traction device according to claim 5, characterized in that: A gear adjustment hole and an elastic bumping ball which cooperate with each other are also arranged between the hand wheel body and the bearing seat.

7. The self-adjustable orthopedic traction device according to any one of claims 4 to 6, characterized in that: The horizontal telescopic assembly includes a supporting upright plate and a telescopic frame inserted in the supporting upright plate. The telescopic frame is connected to the plate end of the connecting plate, and its telescopic position is controlled by a screw connected to the output shaft of the worm gear assembly.

8. The self-adjustable orthopedic traction device according to claim 1 or 4, characterized in that: A pull ring is also connected to the end of the traction rope.

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