Multifunctional cervical vertebra physical therapy device
By designing a multifunctional cervical physiotherapy device, combining electrical stimulation, massage and moxibustion technologies, the problem of long treatment time in the existing technology is solved, and the simultaneous process of electrical stimulation and moxibustion is achieved, which shortens the treatment time and improves the treatment efficiency.
Patent Information
- Application Number
- CN202411835192.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-03-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
After the physical therapy of the existing cervical vertebrae is completed, the moxibustion equipment needs to be replaced for physical therapy, resulting in a long treatment time and affecting the patient's mood.
A multifunctional cervical vertebra physiotherapy device is designed, combining electrical stimulation, massage and moxibustion techniques to float the moxa column's heat from the moxa column to the patient's cervical vertebra through the smoke outlet, and accumulate moxa heat through the silicone ring and rubber ring to reduce loss.
The simultaneous electrical stimulation and moxibustion are achieved, which shortens the treatment time and improves the treatment efficiency. The cervical spine is massaged through massage balls to promote blood circulation and reduce muscle soreness and stiffness.
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Figure CN119587350A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of cervical vertebrae physical therapy, and in particular to a multifunctional cervical vertebrae physical therapy device. Background Art
[0002] A cervical vertebrae physiotherapy device is an instrument specifically used to relieve cervical vertebrae problems. It improves blood circulation in the neck, relieves muscle tension and pain, and promotes cervical vertebrae health through various physical therapies. Cervical vertebrae physiotherapy devices usually combine multiple technologies such as electrical stimulation, massage, moxibustion, traction, etc. to provide comprehensive therapeutic effects.
[0003] The patent with announcement number CN109846702B discloses a cervical vertebra physiotherapy device, including a housing and a control system for controlling the operation of the physiotherapy device, and a connecting piece arranged in the housing; the housing is provided with at least one physiotherapy arm that can be extended and retracted in the housing, the free end of the physiotherapy arm is provided with a massage head, and the physiotherapy arm and the massage head are both connected to the control system; the connecting piece is connected to an end of the physiotherapy arm away from the massage head, and the connecting piece swings and / or rotates relative to the housing under the control of the control system; the physiotherapy arm swings and / or rotates relative to the housing driven by the connecting piece and is extended or retracted in the housing.
[0004] Moxibustion is a commonly used physical therapy method that can promote blood circulation, dredge meridians, and relieve pain. However, the above patent only has two methods: electrical stimulation and massage, and the functions are relatively simple. After the physical therapy with electrical stimulation and massage is completed, the moxibustion equipment needs to be replaced for physical therapy. The treatment time is long and it is easy to affect the patient's mood. Summary of the invention
[0005] In order to overcome the shortcomings that after the electrical stimulation and massage therapy is completed, the moxibustion equipment needs to be replaced for therapy, the treatment time is long, and it is easy to affect the patient's mood, the present invention provides a multifunctional cervical vertebra therapy device.
[0006] The technical solution of the present invention is: a multifunctional cervical vertebra physiotherapy device, including an outer shell, a guard plate, a sliding rod, a first elastic member, an electrode sheet, a box body, a blocking net and a blocking ring. The left and right sides of the outer shell are hinged with guard plates, a torsion spring is arranged between the guard plate and the outer shell, four sliding rods are slidably connected to the front side of the outer shell, a first elastic member is connected between the sliding rod and the outer shell, the sliding rods are connected with electrode sheets through universal joints, the outer shell is connected with a box body, the top of the box body and the top of the outer shell are both provided with placement openings for placing moxa sticks, the placement opening on the box body corresponds to the placement opening on the outer shell, a blocking net for blocking the moxa stick is connected to the box body, a blocking ring is connected to the blocking net, the blocking ring is connected to the outer shell, a smoke outlet is arranged on the outer shell, the smoke outlet is corresponding to the blocking ring, the heat of the moxa stick floats to the patient's cervical vertebra through the smoke outlet for physical therapy, and the blocking ring can block the heat of the moxa stick.
[0007] In one of the embodiments, a gathering mechanism is also included, which includes a sliding rod, a second elastic member, a silicone ring and a rubber ring. The sliding rod is slidably connected to the blocking net, and the second elastic member is connected between the blocking net and the sliding rod. The blocking net is connected to the silicone ring, which is located in the smoke outlet and the blocking ring. The silicone ring is connected to the rubber ring, and the sliding rod is connected to the rubber ring.
[0008] In one of the embodiments, a massage mechanism is also included, which includes a piston block, a moving rod, a massage ball and a driving assembly. Four piston chambers are opened inside the shell, and the piston chambers are all slidably and sealedly connected to the piston blocks. The piston blocks are connected to the moving rods, which slide through the shell. The moving rods are connected to the massage balls. The driving assembly is used to drive the massage balls to move so that the massage balls massage the patient's cervical vertebrae.
[0009] In one embodiment, the driving assembly includes a hydraulic oil tank, a hydraulic pump and a fluid conducting pipe. The hydraulic oil tank is connected to the outer shell. Four hydraulic pumps are connected to the hydraulic oil tank. The discharge ends of the hydraulic pumps are connected to fluid conducting pipes. The fluid conducting pipe seals pass through the hydraulic oil tank. The fluid conducting pipe is connected to the inner wall of the outer shell, and the four fluid conducting pipes are respectively connected to the four piston chambers.
[0010] In one embodiment, the box further comprises a box cover, which is used to seal the placement opening and has ventilation holes.
[0011] In one of the embodiments, a sealing plug is also included. A sealing plug is provided on the top of the box cover for sealing the vent hole.
[0012] In one of the embodiments, a placement ring and a fastening screw are also included. The bottom of the box cover is connected to a placement ring for placing moxa sticks. The placement ring is threadedly connected to a fastening screw, and the fastening screw is used to fix the moxa sticks in the placement ring.
[0013] In one embodiment, it also includes a collection box and a magnetic block. The box body is slidably connected to the collection box for collecting ashes produced by the burning of moxa sticks. The collection box slides through the outer shell, and the box body is connected to a magnetic block for attracting the collection box.
[0014] Beneficial effects: 1. The present invention controls the electrode to stimulate muscles with a pulse current of a certain frequency and a certain band, thereby relieving muscle fatigue and tension and achieving the effect of physical therapy. The heat of the moxa stick can float to the patient's cervical spine through the smoke outlet for physical therapy. Pulse current stimulation and moxibustion can be performed simultaneously, thereby saving treatment time.
[0015] 2. The silicone ring and the rubber ring can gather the heat of the moxa stick and reduce the loss of the heat. Under the action of the second elastic member, the rubber ring can always be in contact with the patient's cervical spine, further reducing the loss of the heat.
[0016] 3. The massage ball can be used to massage the patient's cervical spine to promote local blood circulation and reduce muscle soreness and stiffness. The four massage balls are controlled individually, and the massage ball in the appropriate position can be selected according to the required massage position to adapt to patients in different conditions.
[0017] 4. The moxa stick can be fixed in the placement ring by tightening the screws, and the moxa stick can be suspended in the box to avoid contact between the moxa stick and the inner wall of the box, so that the moxa heat can flow downward better and float to the patient's cervical spine better. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.
[0019] Figure 2 A cross-sectional view of a housing according to the present invention is shown.
[0020] Figure 3 A first three-dimensional structural schematic diagram of the gathering mechanism of the present invention is shown.
[0021] Figure 4 A second three-dimensional structural schematic diagram of the gathering mechanism of the present invention is shown.
[0022] Figure 5 A first stereoscopic structural diagram of the massage mechanism of the present invention is shown.
[0023] Figure 6 A second stereoscopic structural schematic diagram of the massage mechanism of the present invention is shown.
[0024] Figure 7 A cross-sectional view of a hydraulic oil tank according to the present invention is shown.
[0025] Figure 8 A three-dimensional structural schematic diagram of the box cover and the vent hole of the present invention is shown.
[0026] Fig. 9 A three-dimensional structural schematic diagram of the sealing plug, the placement ring and the fastening screws of the present invention is shown.
[0027] Fig.10 A cross-sectional view of the case cover and the placement ring of the present invention is shown.
[0028] Fig.11 A three-dimensional structural schematic diagram of the collection box of the present invention is shown.
[0029] Fig.12 A schematic diagram of the three-dimensional structure of the magnetic attraction block of the present invention is shown.
[0030] Markings in the figure are: 1-housing, 2-protective plate, 3-sliding rod, 4-first elastic member, 5-electrode sheet, 6-box, 61-placing port, 7-blocking net, 8-blocking ring, 81-smoke outlet, 10-sliding rod, 11-second elastic member, 12-silicone ring, 13-rubber ring, 14-piston chamber, 15-piston block, 16-moving rod, 17-massage ball, 18-hydraulic oil tank, 19-hydraulic pump, 20-liquid guide pipe, 21-box cover, 22-vent, 23-sealing plug, 24-placing ring, 25-fastening screw, 26-collection box, 27-magnetic block. DETAILED DESCRIPTION
[0031] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0032] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0035] Reference Figure 1 and Figure 2A multifunctional cervical vertebra therapy device includes a shell 1, a guard plate 2, a slide rod 3, a first elastic member 4, an electrode sheet 5, a box body 6, a blocking net 7 and a blocking ring 8. The front side of the shell 1 is a curved surface, which can better adapt to the contour of the patient's neck, conform to ergonomics, and can provide a more uniform pressure distribution and a more comfortable use experience. The left and right sides of the front side of the shell 1 are hinged with guard plates 2. The sides where the two guard plates 2 are close to each other are both curved surfaces, which can better adapt to the contour of the patient's neck, conform to ergonomics, and can provide a more uniform pressure distribution and a more comfortable use experience. The sides where the two guard plates 2 are close to each other are both provided with cushions, which can disperse the pressure and reduce the direct pressure on the skin and muscles of the neck, making the patient more comfortable during use. A torsion spring is provided between the guard plate 2 and the shell 1, and the front side of the shell 1 is evenly spaced and slidably connected with four A slide rod 3, a first elastic member 4 is connected between the rear end of the slide rod 3 and the inner wall of the shell 1, and the first elastic member 4 is a spring. The front end of the slide rod 3 is connected to an electrode sheet 5 through a universal joint. The electrode sheet 5 can rotate in any direction so that the electrode sheet 5 can fully contact the patient's cervical vertebrae, and there are four electrode sheets 5, which can stimulate the patient's muscles more evenly. A box body 6 is connected to the middle part of the shell 1 by bolts. The box body 6 is made of stainless steel, can withstand high temperatures, is not easy to rust, and is more durable. A placement opening 61 is provided on the top of the box body 6 and the top of the shell 1, and the placement opening 61 on the box body 6 corresponds to the placement opening 61 on the shell 1. A blocking net 7 is connected to the front side of the box body 6, and a blocking ring 8 is connected to the front side of the blocking net 7. The front side of the blocking ring 8 is connected to the shell 1, and a smoke outlet 81 is provided in the middle of the front side of the shell 1, and the smoke outlet 81 corresponds to the blocking ring 8.
[0036] The doctor wears the cervical vertebra therapy device on the patient's neck, and the electrode sheet 5 contacts the patient's cervical vertebra. Under the action of the first elastic member 4, the electrode sheet 5 can be kept in contact with the patient's cervical vertebra so as to stimulate the patient's muscles. The guard plate 2 surrounds the patient's neck to prevent the shell 1 from falling from the patient's neck. Under the action of the torsion spring, the guard plate 2 can be prevented from causing excessive compression on the patient's neck, thereby preventing the patient from feeling pain. The electrode sheet 5 is controlled to stimulate the muscles with a pulse current of a certain frequency and a certain band to relieve muscle fatigue and tension and achieve the effect of physical therapy. The ignited moxa stick can be placed in the box 6 through the placement port 61, and the blocking net 7 can block the moxa stick. The heat of the moxa stick can pass through the blocking net 7, and then the heat of the moxa stick floats to the patient's cervical vertebra through the smoke outlet 81 for physical therapy. The blocking ring 8 can block the heat of the moxa stick to prevent the heat of the moxa stick from floating into the shell 1. Pulse current stimulation and moxibustion can be performed simultaneously, thereby saving treatment time.
[0037] Reference Figure 3 and Figure 4, also includes a gathering mechanism, the gathering mechanism includes a sliding rod 10, a second elastic member 11, a silicone ring 12 and a rubber ring 13, the left and right parts of the blocking net 7 are slidably connected with the sliding rod 10, the sliding rod 10 is sleeved with a second elastic member 11, the two ends of the second elastic member 11 are respectively connected to the blocking net 7 and the sliding rod 10, the second elastic member 11 is a spring, the second elastic member 11 is sleeved on the sliding rod 10, and the second elastic member 11 can be prevented from bending. The front side of the blocking net 7 is connected to a silicone ring 12, the silicone ring 12 is located in the smoke outlet 81 and the blocking ring 8, the two sliding rods 10 are located in the silicone ring 12, the front end of the silicone ring 12 is connected to the rubber ring 13, the front ends of the two sliding rods 10 are connected to the rubber ring 13, and the two sliding rods 10 can support the rubber ring 13 to prevent the rubber ring 13 from tilting downward.
[0038] After the cervical vertebra therapy device is worn on the patient's neck, the rubber ring 13 contacts the patient's cervical vertebra. Under the action of the second elastic member 11, the rubber ring 13 can always contact the patient's cervical vertebra. The silicone ring 12 and the rubber ring 13 can deform adaptively so that the rubber ring 13 can better contact the patient's cervical vertebra. The heat of the moxa stick floats to the patient's cervical vertebra through the smoke outlet 81 for therapy. The silicone ring 12 and the rubber ring 13 can gather the heat of the moxa stick to reduce the loss of the heat.
[0039] Reference Figure 5-Figure 7 , also includes a massage mechanism, the massage mechanism includes a piston block 15, a moving rod 16, a massage ball 17 and a driving component, four piston chambers 14 are opened inside the shell 1, the four piston chambers 14 are distributed in a rectangular array, the piston blocks 15 are slidably and sealedly connected in the piston chambers 14, the front sides of the piston blocks 15 are connected to the moving rods 16, the moving rods 16 slide through the front side of the shell 1, and the front ends of the moving rods 16 are connected to the massage balls 17. The driving component is used to drive the massage balls 17 to move, so that the massage balls 17 massage the patient's cervical vertebrae.
[0040] Reference Figure 5-Figure 7 The driving assembly includes a hydraulic oil tank 18, a hydraulic pump 19 and a fluid guide pipe 20. The hydraulic oil tank 18 is connected to the middle of the rear side of the shell 1 by bolts. Two hydraulic pumps 19 are connected to the left and right sides of the hydraulic oil tank 18 by bolts. The discharge ends of the hydraulic pumps 19 are connected to fluid guide pipes 20. The fluid guide pipes 20 are sealed and penetrate the hydraulic oil tank 18. The fluid guide pipes 20 are connected to the inner wall of the shell 1, and the four fluid guide pipes 20 are respectively connected to the four piston chambers 14.
[0041] The hydraulic pump 19 can suck the hydraulic oil in the hydraulic oil tank 18 into the liquid guide pipe 20, and the hydraulic oil flows into the piston cavity 14 through the liquid guide pipe 20. The hydraulic oil pushes the piston block 15 to move forward, and the piston block 15 drives the moving rod 16 and the massage ball 17 to move forward. Then the hydraulic pump 19 sucks the hydraulic oil in the piston cavity 14 into the hydraulic oil tank 18 through the liquid guide pipe 20, so that the piston block 15 moves backward, and the piston block 15 drives the moving rod 16 and the massage ball 17 to move backward. This reciprocating movement can make the massage ball 17 move back and forth continuously. The massage ball 17 can massage the patient's cervical vertebra, promote local blood circulation, and reduce muscle soreness and stiffness. The four massage balls 17 are controlled separately, and the massage balls 17 in appropriate positions can be selected according to the required massage positions to adapt to patients in different conditions.
[0042] Reference Figure 8 , further comprising a box cover 21, the box cover 21 is used to seal the placement opening 61, and ventilation holes 22 are opened on the left and right parts of the box cover 21.
[0043] Reference Fig. 9 , also includes a sealing plug 23. Two sealing plugs 23 are provided on the top of the box cover 21. The sealing plugs 23 are made of rubber material, have good elasticity and wear resistance, are not easy to fall off from the vent hole 22, and can better seal the vent hole 22.
[0044] The box cover 21 can seal the placement port 61 to reduce the loss of moxa heat. External oxygen can enter the box body 6 through the vent 22 to prevent the moxa stick from being extinguished. After the moxa stick burns out enough moxa heat, the vent 22 can be sealed with a sealing plug 23 to prevent oxygen from entering the box body 6, extinguishing the moxa stick, saving moxa sticks, and preventing the moxa heat in the box body 6 from being discharged from the vent 22 to prevent the loss of moxa heat.
[0045] Reference Fig. 9 and Fig.10 , also includes a placement ring 24 and a fastening screw 25. The left and right sides of the bottom of the box cover 21 are connected with a placement ring 24. The two placement rings 24 correspond to the two vents 22 respectively. The inner diameter of the placement ring 24 is larger than the diameter of the moxa stick. When the moxa stick is placed in the placement ring 24, there will be a certain gap between the moxa stick and the placement ring 24. External oxygen can enter the box body 6 through this gap. The two sides of the placement rings 24 away from each other are both connected with fastening screws 25 through threads.
[0046] The doctor can put the ignited moxa stick into the placement ring 24, and then tighten the fixing screw 25 to fix the moxa stick in the placement ring 24. The moxa stick is suspended in the box 6 and does not contact the inner wall of the box 6, so that the moxa heat can flow downward better and float to the patient's cervical spine better.
[0047] Reference Fig.11 and Fig.12 , also includes a collection box 26 and a magnetic block 27. The collection box 26 is slidably connected to the lower rear side of the box body 6. The collection box 26 slides through the rear side of the shell 1. A square groove is opened in the middle of the rear side of the collection box 26. You can put your fingers into the square groove to facilitate taking the collection box 26 out of the box body 6. The lower rear side of the box body 6 is connected to the magnetic block 27 by bolts. The bottom of the magnetic block 27 is in contact with the top of the collection box 26. The collection box 26 is made of iron. The magnetic block 27 can absorb the collection box 26 to prevent the collection box 26 from sliding out of the box body 6.
[0048] The ashes from the burning moxa sticks will fall into the collection box 26 for collection, which is convenient for subsequent cleaning of the ashes. The collection box 26 can be taken out of the box body 6 by pulling it backwards, and then the ashes in the collection box 26 can be cleaned. Although the magnetic block 27 attracts the collection box 26, the collection box 26 can be pulled by manpower to be taken out.
[0049] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. A multifunctional cervical vertebra physiotherapy device, characterized in that: The invention comprises a shell (1), a guard plate (2), a slide bar (3), a first elastic member (4), an electrode sheet (5), a box (6), a blocking net (7) and a blocking ring (8). The left and right sides of the shell (1) are both hingedly connected with the guard plate (2). A torsion spring is provided between the guard plate (2) and the shell (1). The front side of the shell (1) is slidably connected with four slide bars (3). The slide bars (3) and the shell (1) are connected with the first elastic member (4). The slide bars (3) are connected with the electrode sheet (5) via a universal joint. The shell (1) is connected with the box (6). The top of the box (6) and the shell (1) are connected. A placement opening (61) for placing a moxa stick is provided on the top, the placement opening (61) on the box body (6) corresponds to the placement opening (61) on the outer shell (1), a blocking net (7) for blocking the moxa stick is connected to the box body (6), a blocking ring (8) is connected to the blocking net (7), the blocking ring (8) is connected to the outer shell (1), a smoke outlet (81) is provided on the outer shell (1), the smoke outlet (81) corresponds to the blocking ring (8), the heat of the moxa stick floats to the cervical spine of the patient through the smoke outlet (81) to perform physical therapy, and the blocking ring (8) can block the heat of the moxa stick.
2. A multifunctional cervical vertebra physiotherapy device as claimed in claim 1, characterized in that: The device also comprises a gathering mechanism, which comprises a sliding rod (10), a second elastic member (11), a silicone ring (12) and a rubber ring (13); the blocking net (7) is slidably connected to the sliding rod (10); the second elastic member (11) is connected between the blocking net (7) and the sliding rod (10); the blocking net (7) is connected to the silicone ring (12); the silicone ring (12) is located in the smoke outlet (81) and the blocking ring (8); the silicone ring (12) is connected to the rubber ring (13); and the sliding rod (10) is connected to the rubber ring (13).
3. A multifunctional cervical vertebra therapy device as claimed in claim 2, characterized in that: The invention also comprises a massage mechanism, which comprises a piston block (15), a moving rod (16), a massage ball (17) and a driving assembly. Four piston chambers (14) are opened inside the housing (1). The piston chambers (14) are all connected to the piston blocks (15) in a sliding and sealing manner. The piston blocks (15) are all connected to the moving rods (16). The moving rods (16) slide through the housing (1). The moving rods (16) are all connected to the massage balls (17). The driving assembly is used to drive the massage balls (17) to move so that the massage balls (17) massage the patient's cervical spine.
4. A multifunctional cervical vertebra therapy device as claimed in claim 3, characterized in that: The driving assembly comprises a hydraulic oil tank (18), a hydraulic pump (19) and a fluid guide pipe (20); the hydraulic oil tank (18) is connected to the housing (1); four hydraulic pumps (19) are connected to the hydraulic oil tank (18); the discharge ends of the hydraulic pumps (19) are connected to fluid guide pipes (20); the fluid guide pipes (20) penetrate the hydraulic oil tank (18) in a sealed manner; the fluid guide pipes (20) are connected to the inner wall of the housing (1); and the four fluid guide pipes (20) are respectively connected to the four piston chambers (14).
5. A multifunctional cervical vertebra therapy device as claimed in claim 4, characterized in that: The box also includes a box cover (21) which is used to seal the placement opening (61). A vent hole (22) is provided on the box cover (21).
6. A multifunctional cervical vertebra therapy device as claimed in claim 5, characterized in that: A sealing plug (23) is also included. The top of the box cover (21) is provided with a sealing plug (23) for sealing the vent hole (22).
7. A multifunctional cervical vertebra therapy device as claimed in claim 6, characterized in that: It also includes a placement ring (24) and a fastening screw (25); the bottom of the box cover (21) is connected to a placement ring (24) for placing moxa sticks; the placement ring (24) is threadedly connected to the fastening screw (25); the fastening screw (25) is used to fix the moxa sticks in the placement ring (24).
8. A multifunctional cervical vertebra therapy device as claimed in claim 7, characterized in that: It also includes a collection box (26) and a magnetic attraction block (27); the box body (6) is slidably connected to the collection box (26) for collecting ashes produced by burning moxa sticks; the collection box (26) slides through the outer shell (1); and the box body (6) is connected to the magnetic attraction block (27) for attracting the collection box (26).
Citation Information
Patent Citations
A cervical spine physiotherapy device
CN109846702B