A spinal care cervical fixation device

Abstract

This invention discloses a cervical fixation device for spinal care, comprising a fixation ring, a controller, and an adaptive water bladder array. The fixation ring is formed by hinged first and second half-ring plates and detachably snapped together using a snap-fit ​​assembly, and has an inlet pipe and a return pipe. The controller is separate from the fixation ring and integrates a water tank, a water pump, and a heating / cooling module, forming a circulating water circuit. The adaptive water bladder array includes several circumferentially spaced water bladder components, with gaps between adjacent components forming ventilation slots. Each water bladder component includes a water bladder and a ring-shaped anti-torsional frame; the water bladder expands after being filled with water and abuts against the anti-torsional frame. The fixation ring has a first branch and a second branch connected in parallel between the inlet and return pipes. The front and rear water bladders are connected in series to the first branch to form a first partition group, and the left and right water bladders are connected in series to the second branch to form a second partition group. The two partition groups are independent of each other. This invention balances support stiffness and fit comfort, achieving posture-adaptive pressure adjustment.

Description

Technical Field

[0001] This invention relates to the field of cervical fixation, and more particularly to a cervical fixation device for spinal care. Background Technology

[0002] Cervical spine injury is a common type of spinal injury in clinical practice, including cervical fractures, cervical disc herniation, and postoperative rehabilitation of cervical spine injuries, all of which require effective fixation and support of the neck. Cervical fixation devices (commonly known as cervical collars) are currently widely used external fixation devices for the cervical spine in clinical practice. Their function is to limit the range of motion of the cervical spine, maintain the stability of the cervical spine, and promote the healing and recovery of damaged tissues.

[0003] Neck braces in the present technology are mainly divided into two categories: one is the traditional rigid neck brace, which is usually made of two plastic shells connected by Velcro or buckles and lined with sponge pads; the other is the airbag neck brace that has emerged in recent years, which uses an airbag inside the shell to fit the neck after inflation to improve comfort.

[0004] However, the aforementioned prior art has the following technical problems: First, traditional rigid neck braces use a combination of a rigid shell and a sponge pad. The sponge pad can only provide limited cushioning and cannot achieve even pressure distribution. Prolonged wear can easily create localized high-pressure areas at key pressure points such as the jaw and occipital bone, leading to complications such as pressure sores and pain. At the same time, the sponge pad has poor breathability, making it stuffy and uncomfortable to wear, resulting in low patient compliance.

[0005] Secondly, while air-filled neck braces improve fit through airbag inflation, their airbag structure only provides support in one direction and cannot adaptively adjust pressure distribution according to changes in the patient's head posture. When the patient tilts their head down, tilts it back, or flexes it to the side, the pressure distribution within the airbag changes, but the lack of an automatic adjustment mechanism results in some areas having excessively high pressure and others having insufficient support, affecting the fixation effect and comfort.

[0006] Third, existing neck braces are all one-piece structures, which inherently conflict between torsional stiffness and comfortable fit. Increasing torsional stiffness requires increasing shell thickness and rigidity, but this reduces comfort; conversely, increasing comfort requires adding flexible padding, but this weakens torsional stiffness. It is difficult to achieve both simultaneously.

[0007] Fourth, existing neck braces do not have active temperature regulation functions, which cannot meet patients' needs for neck heat or cold compresses during rehabilitation treatment, thus limiting the expansion of the device's therapeutic functions.

[0008] Therefore, there is an urgent need for a cervical fixation device that can provide stable cervical spine fixation, adaptively adjust pressure distribution, and take into account both comfort and therapeutic function. Summary of the Invention

[0009] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a cervical fixation device for spinal care.

[0010] The technical solution of the present invention is as follows: A cervical fixation device for spinal care, characterized in that it comprises: A fixing ring is used to be fitted around the outer periphery of the neck. The fixing ring includes a first half-ring plate and a second half-ring plate. One end of the first half-ring plate is hinged to one end of the second half-ring plate. The other end of the first half-ring plate is detachably snapped to the other end of the second half-ring plate by a snap-fit ​​assembly to define a ring-shaped fixing ring. The fixing ring is provided with an inlet pipe and an outlet pipe. The controller is separate from the fixed ring. The controller integrates a water tank, a water pump, and a heating and cooling module. The water tank, water pump, inlet pipe, and return pipe form a circulating water circuit. The heating and cooling module is used to heat or cool the water in the water tank. The controller also integrates a human-machine interaction module. An adaptive water bladder array includes several water bladder assemblies arranged at intervals along the circumference of a fixed ring, with gaps between any two adjacent water bladder assemblies to form ventilation slots; each water bladder assembly includes a water bladder and an annular anti-torsion frame sleeved on the outside of the water bladder, the anti-torsion frame being fixedly connected to the inner circumferential wall of the fixed ring, the water bladder expanding after being filled with water and abutting against the inner circumferential wall of the anti-torsion frame, the water bladder having a contact portion extending toward the center of the fixed ring; The fixed ring is provided with a first branch and a second branch connected in parallel between the inlet pipe and the return pipe; the water bladders of the water bladder assemblies located on the front and rear sides of the fixed ring are connected in series on the first branch to form a first pressure self-balancing zone group that is interconnected; the water bladders of the water bladder assemblies located on the left and right sides of the fixed ring are connected in series on the second branch to form a second pressure self-balancing zone group that is interconnected; the first zone group and the second zone group are independent of each other.

[0011] Furthermore, the ventilation groove is provided through the fixed ring along its axial direction, and the upper and lower edges of the first and second semi-ring plates are respectively provided with flexible support pads.

[0012] Furthermore, the water tank integrates a temperature sensor, the water pump is a miniature water pump, the heating and cooling module is a semiconductor heating and cooling module, the human-machine interaction module includes a display screen and control buttons, and the controller integrates a storage battery.

[0013] Furthermore, the controller is provided with two fixing straps, one fixing strap has a hook layer of Velcro, and the other fixing strap has a lint-adhesive layer of Velcro, the hook layer and the lint-adhesive layer are bonded together.

[0014] Furthermore, both the first and second semi-annular plates are hollow inside to form their respective first and second branches. The hinge joint between the first semi-ring plate and the second semi-ring plate is provided with a clearance groove. The clearance groove is provided with a number of flexible hoses that can be bent. The flexible hoses are respectively connected to the branches in the first semi-ring plate and the second semi-ring plate to form a complete first branch and second branch. The inner peripheral walls of the first and second semi-ring plates are respectively provided with water passage holes corresponding to the positions of the water bladder assembly, and the water bladder is connected to the corresponding branch through the water passage holes.

[0015] Furthermore, both the inlet end of the first branch and the second branch are equipped with a one-way valve, and the return end is equipped with a switch valve.

[0016] Furthermore, one end of the first semi-ring plate is provided with a perforated first ear plate extending toward the second semi-ring plate, and one end of the second semi-ring plate is provided with a perforated second ear plate extending toward the first semi-ring plate. The first ear plate and the second ear plate are hinged together by a pin. At this time, the end of the first semi-ring plate is spaced apart from the end of the second semi-ring arm to form the clearance groove.

[0017] Furthermore, the other end of the first semi-ring plate is provided with a first connecting plate, the first connecting plate is provided with an elastic hook, and the inner side of the elastic hook is provided with a first inclined surface; The other end of the second semi-ring plate is provided with a second connecting plate, the second connecting plate is provided with a protrusion, and the outer side of the protrusion is provided with a second inclined surface; When the first half-ring plate and the second half-ring plate are engaged, the second inclined surface abuts against the first inclined surface and pushes open the elastic hook, so that the elastic hook hooks the protrusion.

[0018] Furthermore, the outer wall of the elastic hook is provided with a separation pressing plate.

[0019] Furthermore, the outer wall of the contact portion of the water bladder is provided with a heat-conducting layer, and an antibacterial surface layer is provided on the outer side of the heat-conducting layer.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Ease of wearing: By designing the fixation ring as a structure in which the first half-ring plate and the second half-ring plate are hinged together and the other end is detachably snapped together by a buckle assembly, the patient can first open the fixation ring, put it on the neck from the front and then close and lock it, without having to put it on from the top of the head or bend down to cooperate, thus realizing convenient one-handed wearing and removal.

[0021] 2. Balancing Stability and Comfort: By designing each water bladder component as a composite structure of a water bladder and a ring-shaped anti-torsion frame fitted on the outside of the water bladder, the anti-torsion frame is fixedly connected to the fixing ring to provide anti-torsion stiffness. After the water bladder is filled with water, it expands and abuts against the anti-torsion frame to provide a flexible fit. This achieves the separation and optimization of support stiffness and fit comfort, which not only ensures the stability of neck fixation, but also avoids the hard point pressure of traditional neck braces.

[0022] 3. Posture-adaptive pressure balance: By connecting the front and rear water bladders in series to form the first zone group and connecting the left and right water bladders in series to form the second zone group, and the two zone groups are independent of each other, passive pressure self-balancing is achieved under the posture of head down, back tilt, and lateral flexion using the hydraulic connection principle. It can automatically adjust the pressure distribution of each area according to the changes in the patient's posture without the need for sensors or solenoid valves, and always maintain uniform pressure.

[0023] 4. Temperature-controlled therapy and hygiene comfort: By setting up a split controller that integrates the water tank, water pump and heating and cooling modules, the active temperature regulation function for neck hot or cold compresses is realized; the gaps between the water bladder components form a through ventilation channel, solving the problem of stuffiness during long-term wear; by setting a heat-conducting layer and an antibacterial surface layer at the contact part of the water bladder, the heat conduction efficiency and wearing hygiene safety are improved.

[0024] 5. Water circuit integration and pressure maintenance: By designing the first and second semi-ring plates as hollow structures to form partial branches, and setting flexible hoses at the hinges for connection, the compact integration of the water circuit and free bending during opening and closing are achieved; by setting a one-way valve at the inlet end and a switch valve at the return end, the water tank pressure is quickly established and stably maintained, ensuring the reliability of the support.

[0025] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and the drawings are only examples and not strictly drawn to scale. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort: Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is a schematic diagram of the hinge joint of the fixing ring part of the present invention; Figure 3 yes Figure 2 Enlarged view of the circled area; Figure 4 This is a schematic diagram of the locking point of the fixing ring part of the present invention; Figure 5 yes Figure 4 Enlarged view of the circled area; Figure 6 This is a schematic diagram of the water bladder assembly; Figure 7 This is a schematic diagram of the waterway connection of the present invention.

[0027] Figure label: 1. First semi-ring plate; 2. Second semi-ring plate; 3. Controller; 4. Water tank; 5. Water pump; 6. Inlet pipe; 7. Return pipe; 8. Ventilation slot; 9. Water bladder; 10. Anti-torsion frame; 11. Contact part; 12. First branch; 13. Second branch; 14. Support pad; 15. Fixing strap; 16. Clearance groove; 17. Flexible hose; 18. First ear plate; 19. Second ear plate; 20. First connecting plate; 21. Elastic hook; 22. Second connecting plate; 23. Protrusion; 24. Pressing plate; 25. One-way valve; 26. Switch valve. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "vertical," "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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 orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 invention according to the specific circumstances.

[0032] In the description of this invention, "first feature" and "second feature" may include one or more of the indicated features. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of the indicated features.

[0033] Please refer to the attached diagram below. Figures 1-7 A spinal care cervical fixation device according to an embodiment of the present invention is described, including a fixation ring, a controller 3, and an adaptive water bladder array.

[0034] like Figures 1-4 As shown, the fixing ring is used to fit around the neck. Specifically, the fixing ring includes a first semi-ring plate 1 and a second semi-ring plate 2. One end of the first semi-ring plate 1 is hinged to one end of the second semi-ring plate 2, and the other end of the first semi-ring plate 1 is detachably snapped to the other end of the second semi-ring plate 2 via a buckle assembly, thereby closing the first semi-ring plate 1 and the second semi-ring plate 2 to form a ring-shaped fixing ring. This split hinged structure allows the patient to open the fixing ring first, put it on the neck from the front or side, and then close and lock it, eliminating the need to put the device on from the top of the head, greatly reducing the difficulty of wearing it. The fixing ring is equipped with a water inlet pipe 6 and a water return pipe 7, which are used to connect with the controller 3 to form a circulating water circuit.

[0035] like Figure 1 As shown, the controller 3 and the fixed ring are separate components. The controller 3 integrates a water tank 4, a water pump 5, and a heating / cooling module. The water tank 4, water pump 5, inlet pipe 6, and return pipe 7 form a circulating water circuit. The heating / cooling module is used to heat or cool the water in the water tank 4, thereby achieving hot or cold compress therapy on the neck. The controller 3 also integrates a human-machine interface module, which allows patients to set the water temperature and check the device status.

[0036] The separate design of the controller 3 and the fixing ring transfers heavier components such as the water pump 5, water tank 4, and battery from the neck to the waist, significantly reducing the burden on the neck and improving the comfort of wearing it for a long time.

[0037] The adaptive water bladder array comprises several water bladder assemblies arranged at intervals along the circumference of a fixed ring. A gap is left between any two adjacent water bladder assemblies to form ventilation slots 8. These ventilation slots 8 are arranged through the axial direction of the fixed ring, allowing air to circulate freely in the gaps, effectively solving the problem of stuffiness caused by the large area of ​​traditional neck braces that are in close contact with the skin.

[0038] like Figure 2 , Figure 4 and Figure 6 As shown, each water-filled bladder assembly includes a water-filled bladder 9 and an annular anti-torsion frame 10 fitted around the outside of the water-filled bladder 9. The anti-torsion frame 10 is fixedly connected to the inner peripheral wall of the fixing ring. After the water-filled bladder 9 is inflated with water, it expands and abuts against the inner peripheral wall of the anti-torsion frame 10. The water-filled bladder 9 has a contact portion 11 extending towards the center of the fixing ring. This contact portion 11 directly contacts the neck skin, providing flexible support. The anti-torsion frame 10 is made of a rigid material. When the water-filled bladder 9 is inflated with water, the outer peripheral wall of the water-filled bladder 9 abuts against the anti-torsion frame 10, allowing the pressure of the water-filled bladder 9 to be transmitted to the fixing ring through the anti-torsion frame 10. The anti-torsion frame 10 then bears the torque generated when the neck rotates. This composite structure, in which a rigid frame provides anti-torsion and a flexible water-filled bladder 9 provides fit, ensures the stability of the neck fixation and achieves uniform pressure distribution, avoiding the pressure sores caused by hard points of pressure in traditional neck braces.

[0039] like Figure 7 As shown, the fixed ring is provided with a first branch 12 and a second branch 13 connected in parallel between the inlet pipe 6 and the return pipe 7. The water bladders 9 of the water bladder assemblies located on the front and rear sides of the fixed ring are connected in series on the first branch 12 to form a first partition group that is interconnected. The water bladders 9 of the water bladder assemblies located on the left and right sides of the fixed ring are connected in series on the second branch 13 to form a second partition group that is interconnected. The first partition group and the second partition group are independent of each other.

[0040] Specifically, the first branch 12 connects the front and rear water sacs 9 in series, allowing the water inside these sacs 9 to flow freely. When the patient lowers their head, the front water sac 9 is compressed, and the liquid automatically flows to the rear water sac 9, achieving decompression on the front and pressure increase on the rear, thus preventing excessive pressure on the mandible. When the patient tilts their head back, the rear water sac 9 is compressed, and the liquid automatically flows to the front water sac 9, achieving decompression on the rear and pressure increase on the front. Similarly, the second branch 13 connects the left and right water sacs 9 in series. When the patient flexes to the left, the left water sac 9 is compressed, and the liquid automatically flows to the right water sac 9, achieving decompression on the left and pressure increase on the right, providing lateral support. This passive pressure self-balancing mechanism based on the principle of hydraulic connection can automatically adjust the pressure distribution in each area according to the patient's posture changes without any sensors or solenoid valves, always maintaining uniform pressure between the neck and the device, while providing appropriate resistance to neck movement.

[0041] When using this device, the patient first opens the buckle assembly, unfolds the first half-ring plate 1 and the second half-ring plate 2, and slips it onto the neck from the front. Then, the buckle assembly is closed and locked to ensure the fixing ring fits snugly against the neck. The controller 3 is then activated, and the water pump 5 pumps water from the water tank 4 through the inlet pipe 6 into the first branch 12 and the second branch 13 within the fixing ring. The water flows sequentially through the water bladders 9 on each branch and returns to the water tank 4 through the return pipe 7. During the filling process, the water bladder 9 gradually expands, and its contact part 11 extends towards the center of the fixing ring and fits against the neck skin. When the pressure of the water bladder 9 reaches the set value, the controller 3 closes the return valve 26, sealing the water within the water bladder 9 to create stable support pressure. When hot or cold compresses are needed, the controller 3 activates the heating and cooling module to heat or cool the water in the water tank 4. The heat is transferred through the circulating water path to the contact part 11 of the water bladder 9, thus acting on the neck tissue.

[0042] Therefore, this device achieves convenient wearing and removal by designing the fixing ring as a hinged opening and closing structure; it achieves a balance between support stiffness and fit comfort by combining the water bladder 9 with the anti-torsion frame 10; and it achieves passive pressure self-balancing under the posture of head down, head up, and lateral bending by dividing the water bladder 9 into two independent hydraulically connected zones, front and rear and left and right. It can automatically adapt to changes in neck posture without active control, which significantly improves wearing comfort and fixation stability.

[0043] In some implementations, such as Figure 2 As shown, the ventilation groove 8 extends through the fixing ring along its axial direction. Flexible support pads 14 are respectively provided on the upper and lower edges of the first semi-ring plate 1 and the second semi-ring plate 2. Specifically, the support pads 14 are located on the upper and lower edges of the fixing ring, respectively, to contact the mandible and clavicle, providing additional support and cushioning. This structure ensures the stability of the neck fixation, distributes the support pressure through the pads, and ensures airflow through the ventilation groove 8, further enhancing wearing comfort.

[0044] In some implementations, the water tank 4 integrates a temperature sensor for real-time monitoring of the water temperature and feeding the signal back to the controller 3. The heating and cooling module is a semiconductor heating and cooling module, which can switch between heating and cooling modes by changing the direction of the current; it is compact and responds quickly. The water pump 5 is a miniature water pump, small in size and low in noise, suitable for long-term operation. The human-machine interface module includes a display screen and control buttons. Patients can view information such as the current water temperature, water bag 9 pressure, and battery level on the display screen, and set the target temperature, start or stop the water pump 5, etc., using the control buttons. The controller 3 integrates a battery, allowing the device to operate independently without an external power source, making it convenient for patients to use at home, while traveling, and in other scenarios.

[0045] In some implementations, such as Figure 1As shown, the controller 3 is equipped with two fixing straps 15. One fixing strap 15 has a hook layer of Velcro, and the other fixing strap 15 has a lint layer of Velcro. The hook layer and the lint layer are bonded together. In use, the patient can tie the controller 3 to the waist through the fixing straps 15, so that the weight of the controller 3 is borne by the waist, further reducing the burden on the neck. At the same time, the length of the fixing straps 15 can be adjusted according to the patient's waist circumference to accommodate patients of different body types.

[0046] In some implementations, such as Figure 2 and Figure 3 As shown, both the first semi-ring plate 1 and the second semi-ring plate 2 are hollow, forming a first branch 12 and a second branch 13 respectively. A clearance groove 16 is provided at the hinge point between the first semi-ring plate 1 and the second semi-ring plate 2. Several flexible hoses 17 are provided at the clearance groove 16, connecting to the branches within the first semi-ring plate 1 and the second semi-ring plate 2 to form complete first and second branches 12 and 13. Water passage holes are provided on the inner peripheral walls of the first semi-ring plate 1 and the second semi-ring plate 2 corresponding to the positions of the water bladder assembly. The water bladder 9 communicates with the corresponding branches through these water passage holes. This structure cleverly integrates the water passages inside the fixed ring, preventing exposed pipes from being pulled or compressed. Simultaneously, the flexible hoses 17 can be freely bent at the hinge point, ensuring that the water passages remain connected when the fixed ring is opened and closed. The structure is compact and highly reliable.

[0047] In some implementations, such as Figure 7 As shown, both the inlet of the first branch 12 and the second branch 13 are equipped with a one-way valve 25, and both the return end is equipped with a switch valve 26. The one-way valve 25 allows water to flow only from the inlet pipe 6 to the water bladder 9, preventing backflow when the pump stops; the switch valve 26 is used to control the opening and closing of the return water path. During operation, when water needs to be filled, the controller 3 opens the switch valve 26 and starts the water pump 5. Water enters the water bladder 9 through the one-way valve 25 and then flows back to the water tank 4 through the switch valve 26, forming a cycle. When the pressure in the water bladder 9 reaches the set value, the controller 3 closes the switch valve 26, and the water pump 5 stops. The one-way valve 25 prevents backflow, and the switch valve 26 prevents water from flowing out, sealing the water inside the water bladder 9, thereby maintaining a stable support pressure. When pressure needs to be released or the water bladder 9 needs to be replaced, the controller 3 opens the switch valve 26, and the water in the water bladder 9 flows back to the water tank 4 under the action of gravity or external pressure. This combination of "inlet check valve 25 + return switch valve 26" enables rapid establishment and stable maintenance of pressure in the water bladder 9, with a simple structure and reliable control.

[0048] In some implementations, such as Figure 3As shown, one end of the first semi-ring plate 1 has a perforated first ear plate 18 extending toward the second semi-ring plate 2, and one end of the second semi-ring plate 2 has a perforated second ear plate 19 extending toward the first semi-ring plate 1. The first ear plate 18 and the second ear plate 19 are hinged together by a pin. At this time, the ends of the first semi-ring plate 1 and the second semi-ring plate 2 are spaced apart to form a clearance groove 16. This hinge structure is simple and reliable. The staggered arrangement of the first ear plate 18 and the second ear plate 19 ensures that the two semi-ring plates do not interfere with each other when rotating. At the same time, the clearance groove 16 is located exactly at the hinge point, providing installation space for the flexible hose 17, and realizing a compact integration of waterway connection and mechanical hinge.

[0049] In some implementations, such as Figure 5 As shown, the other end of the first semi-ring plate 1 is provided with a first connecting plate 20, and the first connecting plate 20 is provided with an elastic hook 21. The inner side of the elastic hook 21 is provided with a first inclined surface. The other end of the second semi-ring plate 2 is provided with a second connecting plate 22, and the second connecting plate 22 is provided with a protrusion 23. The outer side of the protrusion 23 is provided with a second inclined surface. When the first semi-ring plate 1 and the second semi-ring plate 2 are engaged, the second inclined surface abuts against the first inclined surface and pushes the elastic hook 21 open, so that the elastic hook 21 hooks the protrusion 23. Specifically, when the two semi-ring plates are closed, the second inclined surface of the protrusion 23 contacts the first inclined surface of the elastic hook 21. The inclined surfaces cooperate to generate a lateral force, pushing the elastic hook 21 outward. When the protrusion 23 is fully inserted into the hook groove of the elastic hook 21, the elastic hook 21 resets and hooks the back of the protrusion 23, realizing self-locking. This inclined surface-guided self-locking buckle structure automatically locks when closed, requiring no additional operation and is convenient to use.

[0050] In some embodiments, the outer wall of the elastic hook 21 is provided with a separation pressure plate 24. When it is necessary to open the fixing ring, the patient only needs to press the separation pressure plate 24 to deform the elastic hook 21 outward, and the protrusion 23 disengages from the hook groove, thus easily separating the two semi-ring plates. This design of the separation pressure plate 24 allows the unlocking operation to be completed with one hand, greatly facilitating the patient to remove the device themselves.

[0051] In some embodiments, the outer wall of the contact portion 11 of the water bladder 9 is provided with a heat-conducting layer, and an antibacterial surface layer is provided on the outer side of the heat-conducting layer. The heat-conducting layer is made of a highly thermally conductive material, which can quickly and evenly transfer the temperature of the water inside the water bladder 9 to the neck skin, improving the therapeutic effect of hot or cold compresses. The antibacterial surface layer is in direct contact with the skin and has antibacterial and bacteriostatic functions, effectively preventing bacterial growth and skin infections caused by prolonged wear, and ensuring hygienic safety during use.

[0052] In summary, this device has the following characteristics: 1. Ease of wearing: By designing the fixation ring as a structure in which the first half-ring plate 1 and the second half-ring plate 2 are hinged together and the other end is detachably snapped together by a buckle assembly, the patient can first open the fixation ring, put it on the neck from the front and then close and lock it, without having to put it on from the top of the head or bend down to cooperate, thus realizing convenient one-handed wearing and removal.

[0053] 2. Balancing support stability and comfort: By designing each water bladder component as a composite structure of a water bladder 9 and an annular anti-torsion frame 10 fitted on the outside of the water bladder 9, the anti-torsion frame 10 is fixedly connected to the fixing ring to provide anti-torsion stiffness. After the water bladder 9 is filled with water, it expands and abuts against the anti-torsion frame 10 to provide a flexible fit. This achieves the separation and optimization of support stiffness and fit comfort, which not only ensures the stability of neck fixation, but also avoids the hard point pressure of traditional neck braces.

[0054] 3. Posture-adaptive pressure balance: By connecting the front and rear water bags 9 in series to form the first zone group and connecting the left and right water bags 9 in series to form the second zone group, and the two zone groups are independent of each other, passive pressure self-balancing is achieved under the posture of head down, back tilt, and lateral flexion using the hydraulic connection principle. It can automatically adjust the pressure distribution of each area according to the patient's posture changes without the need for sensors or solenoid valves, and always maintain uniform pressure.

[0055] 4. Temperature-controlled therapy and hygiene comfort: By setting up a split controller 3 to integrate a water tank 4, a water pump 5 and a heating and cooling module, the active temperature regulation function for neck hot or cold compresses is realized; the gaps between the water bag components form a through ventilation channel 8, which solves the problem of stuffiness during long-term wear; by setting a heat-conducting layer and an antibacterial surface layer at the contact part 11 of the water bag 9, the heat conduction efficiency and the hygiene and safety of wearing are improved.

[0056] 5. Water circuit integration and pressure maintenance: By designing the first semi-ring plate 1 and the second semi-ring plate 2 as hollow structures to form partial branches, and setting flexible hoses 17 at the hinge to connect them, the compact integration of the water circuit and free bending during opening and closing are realized; by setting a one-way valve 25 at the water inlet end and a switch valve 26 at the water return end, the pressure of the water bladder 9 is quickly established and stably maintained, ensuring the reliability of the support.

[0057] Although some embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations of these embodiments without departing from the principles and spirit of the present invention are within the scope of protection of the claims of the present invention.

Claims

1. A cervical fixation device for spinal care, characterized in that, include: A fixing ring is used to be fitted around the outer periphery of the neck. The fixing ring includes a first half-ring plate and a second half-ring plate. One end of the first half-ring plate is hinged to one end of the second half-ring plate. The other end of the first half-ring plate is detachably snapped to the other end of the second half-ring plate by a snap-fit ​​assembly to define a ring-shaped fixing ring. The fixing ring is provided with an inlet pipe and an outlet pipe. The controller is separate from the fixed ring. The controller integrates a water tank, a water pump, and a heating and cooling module. The water tank, water pump, inlet pipe, and return pipe form a circulating water circuit. The heating and cooling module is used to heat or cool the water in the water tank. The controller also integrates a human-machine interaction module. An adaptive water bladder array includes several water bladder assemblies arranged at intervals along the circumference of a fixed ring, with gaps between any two adjacent water bladder assemblies to form ventilation slots; each water bladder assembly includes a water bladder and an annular anti-torsion frame sleeved on the outside of the water bladder, the anti-torsion frame being fixedly connected to the inner circumferential wall of the fixed ring, the water bladder expanding after being filled with water and abutting against the inner circumferential wall of the anti-torsion frame, the water bladder having a contact portion extending toward the center of the fixed ring; The fixed ring is provided with a first branch and a second branch connected in parallel between the inlet pipe and the return pipe; the water bladders of the water bladder assemblies located on the front and rear sides of the fixed ring are connected in series on the first branch to form a first pressure self-balancing zone group that is interconnected; the water bladders of the water bladder assemblies located on the left and right sides of the fixed ring are connected in series on the second branch to form a second pressure self-balancing zone group that is interconnected; the first zone group and the second zone group are independent of each other.

2. The cervical fixation device for spinal care according to claim 1, characterized in that, The ventilation groove is provided through the fixed ring along the axial direction, and the upper and lower edges of the first and second semi-ring plates are respectively provided with flexible support pads.

3. The cervical fixation device for spinal care according to claim 1, characterized in that, The water tank integrates a temperature sensor, the water pump is a miniature water pump, the heating and cooling module is a semiconductor heating and cooling module, the human-machine interaction module includes a display screen and control buttons, and the controller integrates a storage battery.

4. The cervical fixation device for spinal care according to claim 1, characterized in that, The controller is equipped with two fixing straps. One fixing strap has a hook layer with Velcro, and the other fixing strap has a lint-adhesive layer with Velcro. The hook layer is bonded to the lint-adhesive layer.

5. The cervical fixation device for spinal care according to claim 1, characterized in that, The first and second semi-ring plates are both hollow inside to form the first and second branches, respectively. The hinge joint between the first semi-ring plate and the second semi-ring plate is provided with a clearance groove. The clearance groove is provided with a number of flexible hoses that can be bent. The flexible hoses are respectively connected to the branches in the first semi-ring plate and the second semi-ring plate to form a complete first branch and second branch. The inner peripheral walls of the first and second semi-ring plates are respectively provided with water passage holes corresponding to the positions of the water bladder assembly, and the water bladder is connected to the corresponding branch through the water passage holes.

6. The cervical fixation device for spinal care according to claim 1, characterized in that, Both the first and second branches are equipped with check valves at their inlet ends and switch valves at their return ends.

7. The cervical fixation device for spinal care according to claim 1, characterized in that, One end of the first semi-ring plate is provided with a perforated first ear plate extending toward the second semi-ring plate, and one end of the second semi-ring plate is provided with a perforated second ear plate extending toward the first semi-ring plate. The first ear plate and the second ear plate are hinged together by a pin. At this time, the end of the first semi-ring plate is spaced apart from the end of the second semi-ring arm to form the clearance groove.

8. The cervical fixation device for spinal care according to claim 1, characterized in that, The other end of the first semi-ring plate is provided with a first connecting plate, and the first connecting plate is provided with an elastic hook, and the inner side of the elastic hook is provided with a first inclined surface; The other end of the second semi-ring plate is provided with a second connecting plate, the second connecting plate is provided with a protrusion, and the outer side of the protrusion is provided with a second inclined surface; When the first half-ring plate and the second half-ring plate are engaged, the second inclined surface abuts against the first inclined surface and pushes open the elastic hook, so that the elastic hook hooks the protrusion.

9. The cervical fixation device for spinal care according to claim 8, characterized in that, The outer wall of the elastic hook is provided with a separation pressing plate.

10. The cervical fixation device for spinal care according to claim 1, characterized in that, The outer wall of the contact portion of the water bladder is provided with a heat-conducting layer, and an antibacterial surface layer is provided on the outer side of the heat-conducting layer.

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