Adjustable cervical spine stretch traction device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
- Filing Date
- 2025-03-13
- Publication Date
- 2026-07-07
AI Technical Summary
Existing cervical spine exercise and stretching techniques cannot maintain appropriate force, which can easily lead to cervical spine strain. They also cannot detect the stretching distance and force in real time, which affects the rehabilitation effect.
Design an adjustable cervical spine stretching traction device that uses pneumatic muscle control to stretch the cable, combined with real-time monitoring by tension and displacement sensors, to provide adjustable training intensity while protecting the cervical spine, and to achieve continuous traction with fixed-point position control.
It improves the rehabilitation effect of cervical spine training, protects the cervical spine, ensures appropriate intensity and real-time monitoring, and enhances the continuity and effectiveness of treatment.
Smart Images

Figure CN224461864U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cervical spine rehabilitation technology, specifically to an adjustable cervical spine stretching traction device. Background Technology
[0002] Cervical traction devices are medical devices used to treat cervical spondylosis and related diseases, with a history dating back to the early 20th century. Traditional weighted pulley traction methods have been widely used since the 1960s, but they have many limitations, including limited reduction effectiveness and patient safety concerns. In the 1980s, researchers conducted experimental studies on the effects of force, angle, time, and intermittent traction methods in cervical traction, providing valuable references for the clinical application of cervical traction techniques. Since the 21st century, new traction devices have emerged, such as a novel traction device developed by the University of Utah that features robotic actuator load or position control and real-time force sensing; preliminary biomechanical testing results have demonstrated its safety and effectiveness.
[0003] Cervical traction is a widely accepted technique for treating cervical spondylosis, effectively relieving symptoms and reducing patient suffering. It is suitable for radicular cervical spondylosis, cervical type cervical spondylosis, milder cases of vertebral artery type cervical spondylosis, and sympathetic nerve type cervical spondylosis. Cervical traction is often used in combination with other treatments, such as acupuncture, exercise therapy, and traditional Chinese bone-setting techniques, to enhance therapeutic effects.
[0004] Current cervical spine exercise and stretching techniques still have some shortcomings. When conducting cervical spine rehabilitation training, the rehabilitation effect needs to be improved. It is difficult to maintain an appropriate force to stretch the user's cervical spine, which can easily lead to cervical spine strain. It is also difficult to effectively protect the cervical spine during traction. Furthermore, it is impossible to monitor the stretching distance and the magnitude of the stretching force in real time during the stretching process, which makes it impossible to achieve continuous traction according to the fixed position control recommended by the rehabilitation therapist, resulting in poor treatment effect. Utility Model Content
[0005] In view of the shortcomings of the prior art mentioned above, the purpose of this utility model is to generate traction on the cervical spine during the process of lifting the chin, which can provide different training intensities for the cervical spine, maintain appropriate force to stretch the cervical spine of the user, improve the cervical spine training and rehabilitation effect, effectively protect the cervical spine during traction, and can detect the stretching distance and the magnitude of the pulling force in real time, and achieve continuous traction according to the fixed position control recommended by the rehabilitation therapist, thereby improving the treatment effect.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows:
[0007] An adjustable cervical spine stretching traction device includes a seat cushion, multiple supports fixed at the bottom corner of the seat cushion, a backrest provided on one side of the seat cushion, a cervical spine stretching mechanism provided at the top of the backrest, and a control mechanism provided on the back of the backrest.
[0008] The cervical spine stretching mechanism includes an extension frame fixed to the middle of the top of the backrest. The extension frame has a groove on the side facing the backrest. A limit frame is fixed to one side of the top of the extension frame. A first U-shaped mounting platform is fixed to one side of the extension frame. A first fixed pulley is rotatably arranged in the first U-shaped mounting platform. A second U-shaped mounting platform is fixed on the limit frame away from the extension frame. A second fixed pulley is rotatably arranged in the second U-shaped mounting platform. A cable is arranged between the first fixed pulley and the second fixed pulley. One end of the cable is connected to a control mechanism, and the other end of the cable is connected to the cervical spine support.
[0009] As a further embodiment of this utility model, the control mechanism includes a guide rail disposed in the middle of the backrest, a slider slidably disposed on the guide rail, a sensor mounting plate mounted on the slider, a tension sensor mounted on the sensor mounting plate, one end of the cable connected to the tension sensor, a pneumatic muscle disposed at the bottom of the sensor mounting plate, a mounting plate disposed on the back of the backrest, and a power supply, a pneumatic control valve group, an analog transmitter and a signal transmission module disposed sequentially on the mounting plate.
[0010] As a further embodiment of this utility model, limit blocks are provided at both ends of the guide rail.
[0011] As a further embodiment of this invention, a displacement sensor is provided on the back of the backrest.
[0012] As a further embodiment of this utility model, each of the plurality of brackets is connected to a fixing member, and each of the fixing members is provided with a corner piece at the point where it fits against the bracket, and each of the plurality of brackets is provided with a fixing foot at the bottom.
[0013] As a further embodiment of this utility model, a support member is connected at the angle between the extension frame and the limiting frame.
[0014] As a further embodiment of this utility model, a sponge pad is provided on the right end of the seat cushion and the backrest, and the seat cushion and the backrest are positioned at a 90-degree angle.
[0015] As a further embodiment of this utility model, the entire bracket is made of aluminum, and the exterior of the bracket is coated with paint.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] (1) When using this device, connect the external control system, turn on the power, and inflate or deflate the pneumatic muscles by starting the control valve group, so that the pneumatic muscles contract or expand. The slider will move up or down on the guide rail, thereby stretching the cable through the tension sensor, driving the cervical spine support to move and lift the user's chin. This will generate traction on the cervical spine during the chin lifting process, providing different training intensities for the cervical spine. Maintaining appropriate force to stretch the cervical spine of the user will improve the cervical spine training and rehabilitation effect and effectively protect the cervical spine during the traction process.
[0018] (2) Furthermore, when cervical traction is applied, displacement sensors and tension sensors can monitor and detect displacement and tension in real time, respectively, and achieve continuous traction by controlling the fixed position recommended by the rehabilitation therapist, thereby improving the treatment effect. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the overall structure of the back of this utility model;
[0021] Figure 3 This is a schematic diagram of the structure at point A of this utility model;
[0022] Figure 4 This is a schematic diagram of the structure at point B of this utility model.
[0023] In the diagram: 10-Seat cushion; 11-Bracket; 12-Fixer; 13-Corner fitting; 14-Fixed foot; 15-Backrest; 200-Cervical spine stretching mechanism; 201-Extension frame; 202-Cervical spine support; 203-First U-shaped mounting platform; 204-First fixed pulley; 205-Second U-shaped mounting platform; 206-Second fixed pulley; 207-Cable; 210-Support component; 211-Limiting frame; 212-Slide groove; 30-Limiting block; 31-Guide rail; 32-Slider; 33-Sensor mounting plate; 34-Force sensor; 35-Pneumatic muscle; 36-Mounting plate; 37-Power supply; 38-Pneumatic control valve assembly; 39-Analog transmitter; 40-Signal transmission module; 41-Displacement sensor. Detailed Implementation
[0024] 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.
[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Please see the appendix Figure 1-4 An adjustable cervical spine stretching traction device includes a seat cushion 10. Multiple supports 11 are fixed to the bottom corner of the seat cushion 10. Each support 11 is made entirely of aluminum, which is lightweight, facilitating transport and installation, and reducing the overall weight. The supports 11 are coated with paint to prevent rusting and extend their lifespan. A backrest 15 is located on one side of the seat cushion 10. A cervical spine stretching mechanism 200 is located at the top of the backrest 15. A control mechanism is located on the back of the backrest 15. Sponge pads are provided on the seat cushion 10 and the right end of the backrest 15, with the seat cushion 10 and backrest 15 at a 90-degree angle.
[0028] The cervical spine stretching mechanism 200 includes an extension frame 201 fixed at the middle of the top of the backrest 15. The extension frame 201 has a sliding groove 212 on the side facing the backrest 15. A limit frame 211 is fixed on one side of the top of the extension frame 201. A first U-shaped mounting platform 203 is fixed on one side of the extension frame 201. A first fixed pulley 204 is rotatably arranged in the first U-shaped mounting platform 203. A second U-shaped mounting platform 205 is fixed on the limit frame 211 away from the extension frame 201. A second fixed pulley 206 is rotatably arranged in the second U-shaped mounting platform 205. A cable 207 is arranged between the first fixed pulley 204 and the second fixed pulley 206. One end of the cable 207 is connected to the control mechanism, and the other end of the cable 207 is connected to the cervical spine support 202.
[0029] The control mechanism includes a guide rail 31 located in the middle of the back of the backrest 15. Limit blocks 30 are provided at both ends of the guide rail 31. A slider 32 is slidably mounted on the guide rail 31. The limit blocks 30 ensure the safe and accurate movement of the slider 32 on the guide rail 31. A sensor mounting plate 33 is mounted on the slider 32, and a tension sensor 34 is mounted on the sensor mounting plate 33. One end of the cable 207 is connected to the tension sensor 34. A pneumatic muscle 35 is located at the bottom of the sensor mounting plate 33. The pneumatic muscle 35 has good flexibility and continuous deformation capability, which can ensure a buffering and protective effect on the cervical spine during traction. A mounting plate 36 is located on the back of the backrest 15. A power supply 37, a pneumatic control valve group 38, an analog transmitter 39, and a signal transmission module 40 are sequentially mounted on the mounting plate 36. A displacement sensor 41 is located on the back of the backrest 15. During cervical traction, the displacement sensor 41 and the tension sensor 34 can monitor and detect the displacement and tension in real time, respectively.
[0030] When using this device, an external control system is connected, the power supply 37 is turned on, and the pneumatic muscle 45 is inflated or deflated by activating the control valve group 38, causing the pneumatic muscle 45 to contract or expand. The slider 32 will move forward or backward on the guide rail 31, thereby stretching the cable 207 through the tension sensor 34, which will drive the cervical spine support 202 to move and lift the user's chin. This process of lifting the chin generates traction on the cervical spine, which can provide different training intensities for the cervical spine. By maintaining an appropriate force to stretch the cervical spine of the user, the cervical spine training and rehabilitation effect can be improved, and the cervical spine can be effectively protected during the traction process.
[0031] Each of the plurality of brackets 11 is connected by a fixing member 12, and each of the fixing members 12 is provided with a corner piece 13 at the point where it fits against the bracket 11. Each of the plurality of brackets 11 is provided with a fixing foot 14 at the bottom. A support member 210 is connected at the angle between the extension frame 201 and the limiting frame 211.
[0032] The working principle of this utility model is as follows:
[0033] When using this device, an external control system is connected, power supply 37 is turned on, and control valve group 38 is activated to inflate or deflate pneumatic muscle 45, causing pneumatic muscle 45 to contract or expand. Slider 32 will move up or down on guide rail 31, thereby stretching cable 207 through tension sensor 34, driving cervical spine support 202 to move and lift the user's chin. This process of lifting the chin generates traction on the cervical spine, providing different training intensities for the cervical spine. Maintaining appropriate force to stretch the cervical spine of the user improves the cervical spine training and rehabilitation effect, and effectively protects the cervical spine during traction.
[0034] Finally, it should be noted that the displacement sensor 41, tension sensor 34, pneumatic muscle 45, control valve group 38, analog transmitter 39, signal transmission module 40 and other components involved in this utility model are all general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connection between each electrical component is completed in the order of operation. The detailed connection method is a technology known in the art.
[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An adjustable cervical traction device, comprising a seat cushion (10), characterized in that, Multiple supports (11) are fixed at the bottom corner of the seat cushion (10). A backrest (15) is provided on one side of the seat cushion (10). A cervical spine stretching mechanism (200) is provided at the top of the backrest (15). A control mechanism is provided on the back of the backrest (15). The cervical spine stretching mechanism (200) includes an extension frame (201) fixed to the middle of the top of the backrest (15). The extension frame (201) has a sliding groove (212) on the side facing the backrest (15). A limit frame (211) is fixed to one side of the top of the extension frame (201). A first U-shaped mounting platform (203) is fixed to one side of the extension frame (201). A first fixed pulley (20) is rotatably arranged in the first U-shaped mounting platform (203). 4) A second U-shaped mounting platform (205) is fixed on the limiting frame (211) away from the extension frame (201). A second fixed pulley (206) is rotatably arranged inside the second U-shaped mounting platform (205). A cable (207) is arranged between the first fixed pulley (204) and the second fixed pulley (206). One end of the cable (207) is connected to a control mechanism, and the other end of the cable (207) is connected to the cervical spine support (202).
2. The adjustable cervical traction device according to claim 1, characterized in that, The control mechanism includes a guide rail (31) located in the middle of the back of the backrest (15), a slider (32) slidably mounted on the guide rail (31), a sensor mounting plate (33) mounted on the slider (32), a tension sensor (34) mounted on the sensor mounting plate (33), one end of the cable (207) being connected to the tension sensor (34), a pneumatic muscle (35) being provided at the bottom of the sensor mounting plate (33), and a mounting plate (36) being provided on the back of the backrest (15), with a power supply (37), a pneumatic control valve group (38), an analog transmitter (39), and a signal transmission module (40) sequentially mounted on the mounting plate (36).
3. The adjustable cervical traction device according to claim 2, characterized in that, Limiting blocks (30) are provided at both ends of the guide rail (31).
4. An adjustable cervical traction device according to claim 2, characterized in that, A displacement sensor (41) is provided on the back of the backrest (15).
5. An adjustable cervical traction device according to claim 1, characterized in that, Each of the brackets (11) is connected by a fixing member (12), and each of the fixing members (12) is provided with a corner piece (13) at the part that fits against the bracket (11), and each of the brackets (11) is provided with a fixing foot (14).
6. An adjustable cervical traction device according to claim 1, characterized in that, A support member (210) is connected at the angle between the extension frame (201) and the limiting frame (211).
7. An adjustable cervical traction device according to claim 1, characterized in that, A sponge pad is provided on the seat cushion (10) and the right end of the backrest (15), and the seat cushion (10) and the backrest (15) are arranged at a 90-degree angle.
8. An adjustable cervical traction device according to claim 1, characterized in that, The bracket (11) is made entirely of aluminum and is coated with paint on the outside.