A shoulder and neck traction aid

By designing a shoulder and neck traction assistive device, and utilizing a motor-driven lead screw and gear rack mechanism, automated rehabilitation traction exercises for patients with frozen shoulder are realized, solving the problem of patients' inability to move independently and reducing the burden on patients.

CN224441540UActive Publication Date: 2026-07-03ANHUI HEWANG HLDG GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI HEWANG HLDG GRP CO LTD
Filing Date
2025-02-08
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Patients with frozen shoulder often find it difficult to independently crank the hand crank for rehabilitation traction exercises, limiting the use of existing devices.

Method used

Design a shoulder and neck traction assist device that uses a motor to drive a lead screw and a gear rack mechanism to move the patient's shoulder and neck in a regular motion, thereby achieving rehabilitative traction exercises for the shoulder and neck through the action of the motor.

Benefits of technology

It enables automatic rehabilitation traction exercises for the shoulder and neck area driven by a motor, reducing the burden on patients and avoiding situations where patients with frozen shoulder are unable to perform rehabilitation exercises independently.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rehabilitation equipment, and specifically relates to a shoulder and neck traction auxiliary device, which comprises: a rehabilitation bed, a traction mechanism is arranged at the top of the rehabilitation bed; wherein the traction mechanism comprises a motor arranged at the bottom of the rehabilitation bed, and the output shaft of the motor is fixedly connected with a lead screw; a patient lies on the top of the rehabilitation bed on his back, then places his head on the cervical vertebra traction assembly, subsequently places both arms on the top of the two rotating sleeves, starts the motor, and the rotating sleeve and the arm thereon will reciprocating swing under the action of the motor; at this time, the muscles of the shoulder and neck of the patient will perform a rehabilitation regular movement following the swing of the arm, and at this time, the head of the patient will also perform a traction stretching movement, so that, compared with the comparative case, the device can drive the shoulder and neck of the patient to perform a rehabilitation traction exercise under the action of the motor, and the situation that the patient cannot independently perform a rehabilitation traction exercise due to periarthritis is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of rehabilitation equipment technology, and in particular to a shoulder and neck traction assist device. Background Technology

[0002] Rehabilitation equipment primarily assists patients in passive movement and daily activities, promoting rehabilitation. Most are made of stainless steel, iron, plastic, or wood, manufactured through processes such as machining, welding, and injection molding to create the necessary parts. These parts are then assembled from several or even hundreds of components to form a rehabilitation device. Currently, most equipment on the market for treating neck and shoulder problems uses a fixed, straightening method. For example, Chinese patent "CN209611467U" discloses a "medical bed cervical traction-assisted rehabilitation mechanism," which has a detachable support on the medical bed body, and an adjustable headrest on the support. This mechanism has relatively simple functionality.

[0003] A search revealed a Chinese patent, "A Rehabilitation Device for Treating Neck and Shoulder Diseases," publication number "CN216824699U." This patent addresses the aforementioned problems by using a manual crank and traction belt in combination to position the patient's entire body in a swimming posture on the rehabilitation device. This stretches the muscles and tendons of the arms and shoulders, as well as the ligaments of the shoulder joint, thus relaxing the stiff muscles and joints of patients with frozen shoulder. Simultaneously, due to the movement of the arms, the traction belt under the chin also moves the cervical spine with the action of a spring, continuously straightening and relaxing the cervical spine during the movement, thereby restoratively correcting deformed cervical vertebrae.

[0004] However, the device in the above case requires the patient to manually crank the hand crank, while patients with frozen shoulder experience unbearable pain in their shoulder area when the disease flares up, making it difficult for them to manually crank the hand crank.

[0005] Therefore, a shoulder and neck traction assist device is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a shoulder and neck traction aid to solve the above problems, thereby improving the issue that patients with frozen shoulder have difficulty independently cranking the hand crank when the device in the above case is flaring up.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a shoulder and neck traction assist device, comprising: a rehabilitation bed, wherein a traction mechanism is provided at the top of the rehabilitation bed; wherein, the traction mechanism includes a motor disposed at the bottom of the rehabilitation bed, the output shaft of the motor is fixedly connected to a lead screw, the surface of the lead screw is threadedly connected to a threaded sleeve, both sides of the rehabilitation bed are fixedly connected to fixed plates, a rotating gear is disposed below the fixed plates, a fixed rod is fixedly connected to the top of the rotating gear, the top of the fixed rod penetrates the fixed plate and is fixedly connected to a rotating sleeve, two connecting rods are fixedly connected to the surface of the threaded sleeve, the opposite ends of the two connecting rods are fixedly connected to racks that mesh with the rotating gear, and the other end of the lead screw is provided with a cervical spine support. When using the traction component, the patient lies on their back on top of the rehabilitation bed, then places their head on the cervical spine traction component, and then places both arms on top of the two rotating sleeves respectively. The motor is started, driving the lead screw to rotate forward and backward. The lead screw then drives the threaded sleeve, connecting rod, and rack to reciprocate. The rack meshes, driving the rotating gear, fixed rod, rotating sleeve, and the arm on it to swing back and forth. At this time, the patient's shoulder muscles will undergo rhythmic rehabilitation exercises with the arm swings, and the patient's head will also undergo traction and stretching exercises. Therefore, compared to the comparison case, this device can drive the patient's shoulder and neck areas to perform rehabilitation traction exercises under the action of the motor, avoiding the situation where patients with frozen shoulder are unable to perform rehabilitation traction exercises independently.

[0008] Preferably, the cervical traction assembly includes a fixed base fixedly connected to the surface of the rehabilitation bed. A threaded tube is rotatably connected to the inner bottom wall of the fixed base. The top end of the threaded tube extends through to the top of the fixed base. A screw is threadedly connected to the inner wall of the threaded tube. The top end of the screw passes through the fixed base and is fixedly connected to a support plate. A traction sleeve is fixedly connected to the bottom of the support plate. A first bevel gear is fixedly connected to the surface of the threaded tube. The other end of the screw passes through the fixed base and is fixedly connected to a second bevel gear. The surfaces of the first and second bevel gears mesh. When the screw rotates, it drives the second bevel gear to rotate, which in turn drives the first bevel gear to rotate. Subsequently, the first bevel gear drives the screw to move up and down through the threaded tube. Then, the screw, through the support plate, drives the traction sleeve and the patient's head to perform up and down traction. At this time, the patient's neck muscles will perform regular movements. Therefore, compared to the comparative case, this device can provide regular rehabilitation exercises for the patient's neck muscles, reducing the patient's burden.

[0009] Preferably, the inner wall of the rotating sleeve has a movable plate that slides. One end of the movable plate passes through the rotating sleeve and is fixedly connected to an adjusting plate. A locking bolt is threaded onto one side of the rotating sleeve. The end of the locking bolt passes through the rotating sleeve and abuts against one side of the movable plate. A limit band is provided on the top of the adjusting plate. The limit band is made of nylon material. By pulling the adjusting plate, the movable plate can be moved to slide within the rotating sleeve until the adjusting plate moves to a suitable position. The patient then passes their palm through the limit band to prevent the arm from falling off the rotating sleeve when the rotating sleeve moves the arm. Afterward, the locking bolt is tightened to secure the movable plate. This allows the position of the adjusting plate to be adjusted according to the length of the patient's arm, improving the practicality of the device.

[0010] Preferably, a limiting block is fixedly connected to the top of the rack, and two limiting grooves are provided at the bottom of the rehabilitation bed. The limiting block slides on the inner wall of the limiting groove. When the rack moves, it will drive the limiting block to slide on the inner wall of the limiting groove, so as to avoid the rack from shifting its position when it moves.

[0011] Preferably, a limiting rod is fixedly connected to the bottom of the support plate, and the bottom end of the limiting rod extends into the interior of the fixed seat. When the support plate moves up and down, it will drive the limiting rod to slide within the fixed seat, thereby preventing the support plate and the screw from rotating and ensuring that the screw can move up and down normally.

[0012] Preferably, the maximum diameter of the first bevel gear is three times the maximum diameter of the second bevel gear, and the number of teeth on the first bevel gear is also three times the number of teeth on the second bevel gear. This can prevent the threaded pipe thread from driving the screw to move up and down too fast, which could cause discomfort in the patient's neck.

[0013] The beneficial effects of this utility model are:

[0014] 1. When using this device, the patient lies on their back on the top of the rehabilitation bed, and then places their head on the cervical traction component. Next, the patient places both arms on top of the two rotating sleeves. The motor is then started. Under the action of the motor, the rotating sleeves and the arms on them will swing back and forth. At this time, the muscles around the patient's shoulders will perform regular rehabilitation exercises with the swing of the arms. At the same time, the patient's head will also undergo traction and stretching exercises. Compared with the comparison case, this device can drive the patient's shoulder and neck area to perform rehabilitation traction exercises under the action of the motor, avoiding the situation where the patient is unable to perform rehabilitation traction exercises on their own due to frozen shoulder.

[0015] 2. When the lead screw rotates, it drives the second bevel gear to rotate. The second bevel gear meshes with and drives the first bevel gear to rotate. Then, the first bevel gear drives the screw to move up and down through the threaded pipe thread. Subsequently, the screw drives the traction sleeve and the patient's head to move up and down through the support plate. At this time, the patient's neck muscles will perform regular movements. Therefore, compared with the comparison case, this device can perform regular rehabilitation exercises for the patient's neck muscles and reduce the burden on the patient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a bottom view of the present invention;

[0018] Figure 3 This is a schematic diagram of the cervical traction component of this utility model;

[0019] Figure 4 This is a schematic diagram showing the connection between the rotating sleeve and the movable plate of this utility model;

[0020] Figure 5 for Figure 2 A magnified view of A in the middle.

[0021] In the diagram: 1. Rehabilitation bed; 2. Traction mechanism; 21. Motor; 22. Lead screw; 23. Threaded sleeve; 24. Fixing plate; 25. Rotating sleeve; 26. Rotating gear; 27. Fixing rod; 28. Rack; 29. ​​Cervical traction assembly; 2901. Fixing seat; 2902. Threaded tube; 2903. Screw; 2904. Support plate; 2905. First bevel gear; 2906. Second bevel gear; 2907. Traction sleeve; 2908. Limiting rod; 210. Connecting rod; 211. Limiting block; 212. Limiting groove; 213. Adjusting plate; 214. Movable plate; 215. Locking bolt; 216. Limiting band. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In practical implementation: such as Figure 1-5As shown, a shoulder and neck traction assistive device includes: a rehabilitation bed 1, with a traction mechanism 2 at the top of the rehabilitation bed 1; wherein, the traction mechanism 2 includes a motor 21 disposed at the bottom of the rehabilitation bed 1, a lead screw 22 fixedly connected to the output shaft of the motor 21, a threaded sleeve 23 threadedly connected to the surface of the lead screw 22, fixed plates 24 fixedly connected to both sides of the rehabilitation bed 1, a rotating gear 26 disposed below the fixed plate 24, a fixed rod 27 fixedly connected to the top of the rotating gear 26, the top of the fixed rod 27 penetrating the fixed plate 24 and fixedly connected to a rotating sleeve 25, two connecting rods 210 fixedly connected to the surface of the threaded sleeve 23, and racks 28 meshing with the rotating gear 26 fixedly connected to the opposite ends of the two connecting rods 210; the other end of the lead screw 22 is provided with... The device is equipped with a cervical traction component 29. During use, the patient lies on their back on top of the rehabilitation bed 1, which is topped with a soft mattress. The patient's head is placed on the cervical traction component 29, and then both arms are placed on top of the two rotating sleeves 25. The motor 21 is then started, and the output shaft of the motor 21 drives the lead screw 22 to rotate in both directions. The lead screw 22 then drives the threaded sleeve 23 to move back and forth. The threaded sleeve 23 drives the connecting rod 210 and the rack 28 to move back and forth. The rack 28 meshes with and drives the rotating gear 26 to rotate in both directions. At this time, the rotating gear 26 drives the rotating sleeve 25 and the arms on it to swing back and forth through the fixed rod 27. At this time, the muscles around the patient's shoulders will perform regular rehabilitation exercises with the swing of the arms, and the patient's head will also undergo traction and stretching exercises.

[0024] like Figure 1 , Figure 2 and Figure 3As shown, the cervical traction assembly 29 includes a fixing seat 2901 fixedly connected to the surface of the rehabilitation bed 1. A threaded tube 2902 is rotatably connected to the inner bottom wall of the fixing seat 2901. The top end of the threaded tube 2902 extends through to the top of the fixing seat 2901. A screw 2903 is threadedly connected to the inner wall of the threaded tube 2902. The top end of the screw 2903 passes through the fixing seat 2901 and is fixedly connected to a support plate 2904. A traction sleeve 2907 is fixedly connected to the bottom of the support plate 2904. A first bevel gear 2905 is fixedly connected to the surface of the threaded tube 2902. The other end of the screw 22... One end of the fixed base 2901 is fixedly connected to the second bevel gear 2906. The surface of the first bevel gear 2905 meshes with the surface of the second bevel gear 2906. When the lead screw 22 rotates, the lead screw 22 will drive the second bevel gear 2906 to rotate. The second bevel gear 2906 meshes and drives the first bevel gear 2905 to rotate. Then the first bevel gear 2905 drives the screw 2903 to move up and down through the threaded tube 2902. Then the screw 2903 drives the traction sleeve 2907 and the patient's head to move up and down through the support plate 2904. At this time, the patient's neck muscles will move rhythmically.

[0025] like Figure 1 , Figure 2 and Figure 4 As shown, a movable plate 214 slides along the inner wall of the rotating sleeve 25. One end of the movable plate 214 passes through the rotating sleeve 25 and is fixedly connected to an adjusting plate 213. A locking bolt 215 is threadedly connected to one side of the rotating sleeve 25. The end of the locking bolt 215 passes through the rotating sleeve 25 and abuts against one side of the movable plate 214. A limiting band 216 is provided at the top of the adjusting plate 213. The limiting band 216 is made of nylon. Depending on the arm length of different patients, the movable plate 214 can be slid within the rotating sleeve 25 by pulling the adjusting plate 213 until the adjusting plate 213 moves to a suitable position. Then, the patient passes their palm through the limiting band 216 and tightens the locking bolt 215 to press against the movable plate 214.

[0026] like Figure 2 and Figure 5 As shown, a limiting block 211 is fixedly connected to the top of the rack 28, and two limiting grooves 212 are provided at the bottom of the rehabilitation bed 1. The limiting block 211 slides on the inner wall of the limiting groove 212. When the rack 28 moves, it will drive the limiting block 211 to slide on the inner wall of the limiting groove 212.

[0027] like Figure 1 , Figure 2 and Figure 3As shown, a limiting rod 2908 is fixedly connected to the bottom of the support plate 2904. The bottom end of the limiting rod 2908 extends into the interior of the fixed seat 2901. When the support plate 2904 moves up and down, it will cause the limiting rod 2908 to slide within the fixed seat 2901.

[0028] like Figure 3 As shown, the maximum diameter of the first bevel gear 2905 is three times the maximum diameter of the second bevel gear 2906, and the number of teeth on the first bevel gear 2905 is also three times the number of teeth on the second bevel gear 2906.

[0029] In use, the patient lies on their back on the top of the rehabilitation bed 1, which is equipped with a soft mattress. The head is then placed on the cervical traction component 29, and both arms are placed on top of the two rotating sleeves 25. The motor 21 is then started. The output shaft of the motor 21 drives the lead screw 22 to rotate in both directions. The threaded lead screw 22 drives the threaded sleeve 23 to reciprocate. The threaded sleeve 23 drives the connecting rod 210 and the rack 28 to reciprocate. The rack 28 meshes with and drives the rotating gear 26 to rotate in both directions. At this time, the rotating gear 26 will pass through the fixed rod 27... The rotating sleeve 25 and the arm on it swing back and forth. At this time, the muscles around the patient's shoulder will perform regular rehabilitation exercises with the swing of the arm. When the lead screw 22 rotates, the lead screw 22 will drive the second bevel gear 2906 to rotate. The second bevel gear 2906 meshes and drives the first bevel gear 2905 to rotate. Then, the first bevel gear 2905 drives the screw 2903 to move up and down through the threaded tube 2902. Then, the screw 2903 drives the traction sleeve 2907 and the patient's head to move up and down through the support plate 2904. At this time, the patient's neck muscles will perform regular exercises.

[0030] It should be noted that the motors and other components mentioned above are all devices with relatively mature existing technologies. The specific model can be selected according to actual needs. The motor can be powered by a built-in power supply or by AC power. The specific power supply method should be selected according to the situation, and will not be elaborated here.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A shoulder and neck traction aid, characterized in that, include: A rehabilitation bed (1), wherein a traction mechanism (2) is provided at the top of the rehabilitation bed (1); The traction mechanism (2) includes a motor (21) located at the bottom of the rehabilitation bed (1). The output shaft of the motor (21) is fixedly connected to a lead screw (22). A threaded sleeve (23) is threadedly connected to the surface of the lead screw (22). Fixed plates (24) are fixedly connected to both sides of the rehabilitation bed (1). A rotating gear (26) is provided below the fixed plate (24). A fixed rod (27) is fixedly connected to the top of the rotating gear (26). The top of the fixed rod (27) passes through the fixed plate (24) and is fixedly connected to a rotating sleeve (25). Two connecting rods (210) are fixedly connected to the surface of the threaded sleeve (23). A rack (28) that meshes with the rotating gear (26) is fixedly connected to the opposite ends of the two connecting rods (210). A cervical traction component (29) is provided at the other end of the lead screw (22).

2. The shoulder and neck traction aid of claim 1, wherein: The cervical traction assembly (29) includes a fixed seat (2901) fixedly connected to the surface of the rehabilitation bed (1). A threaded tube (2902) is rotatably connected to the inner bottom wall of the fixed seat (2901). The top end of the threaded tube (2902) extends through to the top of the fixed seat (2901). A screw (2903) is threadedly connected to the inner wall of the threaded tube (2902). The top end of the screw (2903) passes through the fixed seat (2901) and is fixedly connected to a support plate (2904). A traction sleeve (2907) is fixedly connected to the bottom of the support plate (2904). A first bevel gear (2905) is fixedly connected to the surface of the threaded tube (2902). The other end of the screw (22) passes through the fixed seat (2901) and is fixedly connected to a second bevel gear (2906). The surface of the first bevel gear (2905) meshes with the surface of the second bevel gear (2906).

3. The shoulder and neck traction aid of claim 1, wherein: The inner wall of the rotating sleeve (25) has a movable plate (214) that slides through it. One end of the movable plate (214) passes through the rotating sleeve (25) and is fixedly connected to an adjusting plate (213).

4. The shoulder and neck traction aid of claim 3, wherein: A locking bolt (215) is threadedly connected to one side of the rotating sleeve (25), and the end of the locking bolt (215) passes through the rotating sleeve (25) and abuts against one side of the movable plate (214).

5. The shoulder and neck traction aid of claim 1, wherein: The top of the rack (28) is fixedly connected to a limiting block (211), and the bottom of the rehabilitation bed (1) is provided with two limiting grooves (212), and the limiting block (211) slides on the inner wall of the limiting groove (212).

6. The shoulder and neck traction aid of claim 3, wherein: The top of the adjustment plate (213) is provided with a limiting band (216), which is made of nylon material.

7. The shoulder and neck traction aid of claim 2, wherein: The bottom of the support plate (2904) is fixedly connected to a limiting rod (2908), and the bottom end of the limiting rod (2908) extends into the interior of the fixed base (2901).

8. The shoulder and neck traction aid of claim 2, wherein: The maximum diameter of the first bevel gear (2905) is three times the maximum diameter of the second bevel gear (2906).