Cervical vertebra tractor

Abstract

The embodiment of the utility model provides a cervical vertebra tractor. The cervical vertebra tractor comprises a fixing frame; the rear neck bracket is connected with the fixing frame, and the fixing frame and the rear neck bracket define a space for the neck to pass through; the lower jaw bracket is rotationally connected with the fixing frame; the limiting assembly comprises a rotating part and a positioning part, the rotating part is connected with the lower jaw bracket, the rotating part rotates along with rotation of the lower jaw bracket, the positioning part is rotationally arranged on the fixing frame and rotates in a reciprocating mode within a preset angle range, first limiting structures are arranged at the two ends of the positioning part respectively, and the first limiting structures are arranged on the lower jaw bracket. A second limiting structure is arranged on the rotating part, and the first limiting structure is matched with the second limiting structure so as to limit and fix the lower jaw bracket. According to the cervical vertebra tractor, through cooperation of the first limiting structure and the second limiting structure on the rotating piece and the positioning piece, it is ensured that the lower jaw bracket can be firmly locked after being adjusted to the proper position, the positioning piece rotates in a reciprocating mode within the preset angle range, and the maximum rotating angle of the lower jaw bracket is limited; and the use safety is further improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical devices, and particularly relates to a cervical vertebra traction device. BACKGROUND

[0002] The cervical vertebra traction device is a medical device for treating and relieving neck pain, stiffness and other symptoms caused by cervical spondylosis. It increases the space between the intervertebral discs by applying a gentle pulling force, thereby reducing the pressure on the nerve roots or spinal cord, promoting blood circulation, and helping to restore the normal curvature of the cervical vertebra.

[0003] Current cervical vertebra traction devices, especially in the adjustment of the mandibular rest, have some problems and challenges: the mandibular rest of the traditional cervical vertebra traction device is often designed without personalized adjustment, which cannot fully adapt to the facial profile and neck length of different users, and may cause discomfort or poor effect. Some models of traction devices may not have enough fine adjustment options, making it difficult for users to find the most suitable position, affecting the treatment effect. The adjustment mechanism of some traction devices is relatively complex, and users need to perform multiple steps to complete the adjustment, increasing the difficulty of use, especially for the elderly or people with limited mobility. During use, if the position of the mandibular rest is unstable or prone to sliding, it may cause uneven traction force, and even cause additional neck pressure or injury.

[0004] In summary, the existing cervical vertebra traction device has the problems of inconvenient adjustment of the mandibular rest and unstable support, which poses certain safety hazards. CONTENT OF THE INVENTION

[0005] Therefore, the embodiments of the present application provide a cervical vertebra traction device to solve the technical problem of inconvenient adjustment of the mandibular rest in the existing cervical vertebra traction device.

[0006] The embodiments of the present application provide a cervical vertebra traction device, which comprises:

[0007] a fixed frame;

[0008] a rear neck bracket connected to the fixed frame, the fixed frame and the rear neck bracket enclosing a space for the neck to pass through;

[0009] a mandibular rest bracket connected to the fixed frame in rotation; and

[0010] The limiting assembly comprises a rotating member and a positioning member, the rotating member is connected with the lower jaw bracket, the rotating member rotates with the lower jaw bracket, the positioning member is rotatably arranged on the fixed frame, the positioning member reciprocating rotates within a preset angle range, two ends of the positioning member are respectively provided with a first limiting structure, the rotating member is provided with a second limiting structure, and the first limiting structure and the second limiting structure are matched to limit and fix the lower jaw bracket.

[0011] In some embodiments, the positioning member is located below the rotating member, and the two first limiting structures are respectively located on the two sides of the rotating member.

[0012] In some embodiments, one end of the rotating member is fixedly connected with the lower jaw bracket, and the other end of the rotating member is provided with the second limiting structure, the second limiting structure is a first protrusion, and the first protrusion is uniformly and continuously arranged around the surface of the rotating member.

[0013] The first limiting structure is a first groove.

[0014] In some embodiments, the second limiting structure is a second groove, and the second groove is uniformly and continuously arranged around the surface of the rotating member.

[0015] The first limiting structure is a second protrusion.

[0016] In some embodiments, the rotating member is a ratchet wheel, the ratchet wheel is connected with the lower jaw bracket through a fixed shaft, and an inclined tooth on the surface of the ratchet wheel and / or a groove between adjacent inclined teeth form the second limiting structure.

[0017] The positioning member is an arc-shaped rotating block, two ends of a side of the rotating block close to the rotating member are respectively provided with a positioning groove, two positioning protrusions are formed on the two sides of the positioning groove, and the positioning groove and / or the positioning protrusions form the first limiting structure.

[0018] In some embodiments, the positioning member and the rotating member are located inside the fixed frame, a pushing rod is further arranged outside the fixed frame, the pushing rod is connected with the positioning member, and the positioning member is driven to rotate within a preset angle range by rotating the pushing rod.

[0019] In some embodiments, the cervical vertebra traction device comprises a lifting assembly mounted on the fixed frame, and the lifting assembly is used for adjusting the lifting height of the lower jaw bracket.

[0020] In some embodiments, the lifting assembly comprises:

[0021] A connecting shell is fixedly connected with the lower jaw bracket.

[0022] A screw rod, one end of which is rotatably arranged on the connecting shell, and the other end of which is rotatably arranged on the fixing frame;

[0023] A knob, which is rotatably arranged on the screw rod, and which drives the screw rod to rotate by rotating the knob, so that the height of the lower jaw bracket is changed.

[0024] In some embodiments, the connecting shell is provided with a limiting block near one side of the lower jaw bracket, and the lower jaw bracket is provided with a limiting protrusion which abuts against the limiting block.

[0025] In some embodiments, a clamping assembly is further arranged below the positioning member, and the clamping assembly comprises:

[0026] A fixing column, which is hollow inside;

[0027] An elastic member, which is arranged in the fixing column;

[0028] A steel ball, which is arranged in the fixing column and abuts against the elastic member;

[0029] The positioning member is provided with a recess near one side of the steel ball, and the recess cooperates with the steel ball, so that the positioning member reciprocates within a preset angle range.

[0030] In some embodiments, the fixing frame comprises:

[0031] A support shell;

[0032] A cover shell, which is arranged on the support shell and forms a containing cavity with the inside of the fixing frame;

[0033] The cover shell is provided with a plurality of support plates on one side thereof facing the support shell;

[0034] The rear neck bracket is provided with an air bag cushion, and the air pipe and the wire of the air bag cushion are arranged in the containing cavity.

[0035] The cervical vertebra tractor provided by the embodiment of the present application can ensure that the mandibular bracket can be firmly locked after being adjusted to a suitable position through the cooperation of the first limiting structure and the second limiting structure on the rotating member and the positioning member. This effectively prevents accidental movement caused by external force or user action during use, avoids unnecessary pressure or injury to the neck, and improves the safety performance. The positioning member reciprocatingly rotates within a preset angle range, limits the maximum rotation angle of the mandibular bracket, prevents excessive traction or inappropriate adjustment, and further improves the safety of use. The rotating member rotates with the rotation of the mandibular bracket, so that the user can make accurate angle adjustment and find the most suitable traction position. This accurate adjustment mechanism helps to ensure uniform distribution of traction force and improve treatment effect. The mandibular bracket is connected to the fixed frame through rotation, and the stability of the entire structure is ensured in combination with the design of the limiting assembly. Even if a certain external force is applied during use, the position and stability of the mandibular bracket will not be affected. Integrating the limiting assembly into the mandibular bracket and the fixed frame makes the entire device structure compact, reduces additional accessories and complex operations, and improves the overall aesthetics and portability. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0037] Figure 1 is a structure diagram of the cervical vertebra tractor provided by the embodiment of the present application Figure 1 ;

[0038] Figure 2 is a partial structure diagram of Figure 1 ; Figure 1 ;

[0039] Figure 3 is a partial structure diagram of Figure 1 ; Figure 2 ;

[0040] Figure 4 is a structure diagram of the fixed frame and the inflation assembly in the cervical vertebra tractor provided by the embodiment of the present application

[0041] Figure 5 is a partial structure diagram of Figure 4 ;

[0042] Figure 6 is a structure diagram of the rear neck bracket in the cervical vertebra tractor provided by the embodiment of the present application Figure 1 ;

[0043] Figure 7 is a structural schematic of a rear neck bracket in a cervical vertebra traction device provided by an embodiment of the present application Figure 2 ;

[0044] Figure 8 is a structural schematic of a lower jaw bracket in a cervical vertebra traction device provided by an embodiment of the present application

[0045] Figure 9 is a structural schematic of a cervical vertebra traction device provided by an embodiment of the present application Figure 2 ;

[0046] Figure 10 is an enlarged view of A in Figure 9

[0047] In the drawings:

[0048] 10, fixing frame; 11, support shell; 12, cover shell; 121, support plate; 1210, through hole; 100, fixed end; 101, connecting section; 102, connecting end; 103, fixing hole; 13, mounting box;

[0049] 20, rear neck bracket; 200, binding belt; 21, bracket body; 211, first support part; 212, second support part; 22, air bag cushion; 220, air pipe;

[0050] 30, lower jaw bracket; 300, support curved surface; 31, flexible piece; 32, limiting protrusion;

[0051] 40, limiting assembly; 41, rotating piece; 410, second limiting structure; 42, positioning piece; 420, first limiting structure; 421, positioning groove; 422, positioning protrusion; 423, recessed part; 43, pushing rod;

[0052] 50, lifting assembly; 51, connecting shell; 511, limiting block; 52, screw rod; 53, knob;

[0053] 60, detent assembly; 61, fixed column; 62, elastic piece; 63, steel ball;

[0054] 70, inflation assembly. DETAILED DESCRIPTION

[0055] In the following description, for the purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the embodiments of the present application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the embodiments of the present application with unnecessary detail. ​

[0056] It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items, and that the term "at least one of' indicates open-ended reference to one or more of the associated listed items and allows for an meaning of one or more of the listed items.

[0057] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element with intervening elements present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element with intervening elements present.

[0058] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, as used herein, are intended to refer to the orientation or position of the apparatus or element as shown in the drawings, and are merely used for convenience in describing the present embodiments and simplifying the description, and are not intended to indicate or imply that the apparatus or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present embodiments.

[0059] In addition, in the description of the present embodiments and the appended claims, the terms "first", "second", "third", and the like are used merely to distinguish different elements, and are not intended to indicate or imply relative importance.

[0060] In the description of the present embodiments, the reference "some embodiments" or "some embodiments" and the like means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present embodiments. Therefore, the statements "in some embodiments", "in some embodiments", "in other some embodiments", "in other some embodiments" and the like appearing in different places in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "contain", "have" and their variants mean "including but not limited to", unless otherwise specifically emphasized. "Multiple" means two or more.

[0061] The present embodiments provide a cervical traction device, as shown in Figures 1 to 3 The cervical traction device includes a fixing frame 10, a rear neck bracket 20, a lower jaw bracket 30 and a limiting assembly 40.

[0062] The rear neck bracket 20 is connected to the fixing frame 10, and the fixing frame 10 and the rear neck bracket 20 enclose a space for the neck to pass through.

[0063] The lower jaw bracket 30 is rotatably connected to the fixing frame 10.

[0064] The limiting assembly 40 includes a rotating piece 41 connected to the mandibular bracket 30 and a positioning piece 42 rotatably arranged on the fixed frame 10. The positioning piece 42 reciprocally rotates within a preset angle range. The two ends of the positioning piece 42 are respectively provided with first limiting structures 420. The rotating piece 41 is provided with second limiting structures 410. The first limiting structures 420 and the second limiting structures 410 cooperate to limit and fix the mandibular bracket 30.

[0065] The cervical vertebrae tractor provided by the embodiment of the present application ensures that the mandibular bracket 30 can be firmly locked after being adjusted to a suitable position through the cooperation of the first limiting structures 420 and the second limiting structures 410 on the rotating piece 41 and the positioning piece 42. This effectively prevents accidental movement caused by external force or user action during use, avoids unnecessary pressure or injury to the neck, and improves the safety performance. The positioning piece 42 reciprocally rotates within a preset angle range, limiting the maximum rotation angle of the mandibular bracket 30. In application, the preset angle is 30°-180°, which can prevent excessive traction or inappropriate adjustment and further improve the safety of use. The rotating piece 41 rotates with the mandibular bracket 30, so that the user can make accurate angle adjustment and find the most suitable traction position for himself. This accurate adjustment mechanism helps to ensure uniform distribution of traction force and improve treatment effect. The mandibular bracket 30 is rotatably connected to the fixed frame 10, and the design of the limiting assembly 40 ensures the stability of the entire structure. Even if it is subjected to certain external force during use, it will not affect the position and stability of the mandibular bracket 30. Integrating the limiting assembly 40 into the mandibular bracket 30 and the fixed frame 10 makes the entire device structure compact, reduces additional accessories and complex operations, and improves the overall aesthetics and portability.

[0066] In application, the user can adjust the angle of the mandibular bracket 30 through a simple rotation operation and quickly lock it through the limiting assembly 40. This design simplifies the operation steps and reduces the difficulty of use for the user, especially suitable for the elderly or people with limited mobility. The neck and mandibular shape of each user is different, and this design allows the user to make personalized adjustments according to their actual situation to ensure comfortable and effective wearing. The design of the limiting assembly 40 reduces the meaningless rotation of the mandibular bracket 30 in the non-working state, reduces the friction and wear between mechanical components, and prolongs the service life of the device. The structure of the limiting assembly 40 is relatively simple, which is convenient for daily cleaning and maintenance, and reduces the risk of failure caused by dirt accumulation. Through precise limiting and stable structure, it ensures that the traction force remains uniform throughout the treatment process, avoiding inconsistent traction force caused by position changes, thereby improving the effectiveness of treatment. This design is not only suitable for regular cervical traction treatment, but also can be flexibly adjusted according to different treatment needs, such as changing the traction angle, intensity, etc., to meet the individual needs of more users.

[0067] In application, as shown in Figure 1 and Figure 4 , the fixed frame 10 includes two fixed ends 100 for contacting the user's shoulders and a connecting segment 101 connecting the two fixed ends 100, and the shape of the connecting segment 101 is adapted to the curvature of the user's chest. After the cooperation of the rear neck bracket 20, the space for the user's neck to pass through is formed as described above, which can also improve the user's experience and make the design more ergonomic. The fixed frame 10 further includes a connecting end 102 provided on the fixed end 100, and the connecting end 102 is provided with a fixed hole 103 near the side of the rear neck bracket 20 to realize detachable connection between the rear neck bracket 20 and the connecting end 102. Specifically, the rear neck bracket 20 is provided with a strap 200, and the strap 200 passes through the fixed hole 103 to realize detachable connection, which is convenient for daily wearing and use.

[0068] In some embodiments, as shown in Figure 4 and Figure 5 , the fixed frame 10 includes a support shell 11 and a cover shell 12, and the cover shell 12 is arranged on the support shell 11 and forms a containing cavity with the inside of the fixed frame 10;

[0069] Among them, the side of the cover shell 12 facing the support shell 11 is provided with a plurality of support plates 121;

[0070] The rear neck support 20 is provided with an air bag cushion 22, and the air pipe 220 and the wire of the air bag cushion 22 are arranged in the accommodating cavity. In this way, the structure is compact and beautiful, and by combining the cover shell 12 and the support shell 11 to form a closed accommodating cavity, the air pipe 220 and the wire of the air bag cushion 22 can be effectively hidden. This integrated design not only makes the appearance of the device more simple and beautiful, but also reduces the risk of entanglement or damage caused by external cables. By embedding the air pipe 220 and the wire in the accommodating cavity, the additional space occupied by the external cables is avoided, making the entire device more compact and convenient to carry and store. It can also improve safety, as the air pipe 220 and the wire are protected in the accommodating cavity, so users will not accidentally pull these components during use, causing device failure or air bag leakage, improving safety.

[0071] In application, the plurality of support plates 121 on the cover shell 12 increase the structural strength of the fixing frame 10, ensuring that deformation or loosening does not occur during use, further improving the stability and reliability of the device. The support plates 121 are provided with through holes 1210 to facilitate the passage of the air pipe 220 and the wire, which can be well fixed and stored to avoid displacement and shaking, affecting use.

[0072] In application, as shown in Figure 6 and Figure 7 , the rear neck support 20 includes a support body 21 and an air bag cushion 22, the support body 21 includes a first support part 211 and a second support part 212, the second support part 212 is movably connected to the second support part 212, and the support area and the support height of the support body 21 are adjusted by adjusting the connection position of the second support part 212 and the first support part 211.

[0073] The air bag cushion 22 is detachably fixed to the first support part 211, the air bag is laid on the first support part 211 and the second support part 212, and the flexible heating element (not shown in the figure) is embedded in the air bag cushion 22. The flexible heating element is used for heating to provide the effect of auxiliary treatment. By movably connecting the second support part 212 to the first support part 211, the connection position of the two is adjusted to realize the adjustment of the support area and the support height of the support body 21, and cooperating with the setting of the air bag, the use comfort of the user can be greatly improved, so that the rear neck support 20 can be more fitted to the neck of the user, providing a suitable support surface, support height and softness; in addition, by setting the flexible heating element, the pillow cushion can also heat and assist treatment when supporting the neck of the user.

[0074] In some embodiments, the flexible heating element includes at least one of a flexible strip heating sheet, a flexible heating wire, and a graphene heating sheet. The flexible heating element is light and bendable, and can be well adapted to the pillow, and can be bent and deformed according to different body parts of the user. The flexible strip heating sheet is made of conductive material and can generate heat through electric current. The flexible heating wire has good flexibility and durability and can withstand repeated bending without breaking. The graphene heating sheet, as a new type of material, has excellent electrical conductivity and thermal conductivity. The graphene heating sheet can quickly respond and uniformly heat, and is very thin and light in weight.

[0075] In some embodiments, the above flexible heating elements can be selected and used in combination according to the needs of specific application scenarios. The combination of the flexible strip heating sheet and the graphene heating sheet can ensure wide warm coverage and provide a more delicate and comfortable heating experience in the part contacting the skin.

[0076] In some embodiments, as shown in Figure 1 , Figure 4 , Figure 6 and Figure 7 , the cervical traction device further includes an inflation assembly 70. The side edge of the air bag cushion 22 is provided with an inflation interface, which is used to connect with the inflation assembly 70 to inflate the air bag cushion 22. The side edge of the air bag cushion 22 is also provided with a charging interface, which is used to externally connect a power source to facilitate charging of the flexible heating element. The inflation assembly 70 is located in the middle of the fixing frame 10, and during use (after wearing is completed), the inflation assembly 70 is located in front of the user's chest, which facilitates the operation of the charging assembly to inflate the air bag cushion 22 or power on the flexible heating element.

[0077] In some embodiments, the inflation interface and the charging interface are located at one end of the air bag cushion 22 close to the second support part 212, and the inflation interface and the charging interface are arranged side by side. This facilitates daily use, and being located on one side minimizes the impact of the line set on the user during use.

[0078] In some embodiments, as shown in Figure 6 and Figure 7 , the air bag cushion 22 is provided with a first connecting piece and a second connecting piece on the two sides, respectively. The first support part 211 is provided with a first through hole for the first connecting piece to pass through, and the first support part 211 is provided with a second through hole for the second connecting piece to pass through. In this way, during use, the first connecting piece passes through the first through hole to fix one side of the air bag, and the second connecting piece passes through the second through hole to fix the other side of the air bag, thereby strengthening the connection and fixation of the air bag and the bracket body 21.

[0079] In applications, the first connecting member and the second connecting member are a strap 200, which is flexible and can be passed through the first perforation and the second perforation to achieve fixation. In other embodiments, the first connecting member and the second connecting member can also be a buckle, a tape, etc.

[0080] In applications, as shown in Figures 1 to 3 and Figure 8 , the two ends of the mandibular bracket 30 are rotationally connected with the connecting end 102 on the fixing frame 10, and the mandibular bracket 30 has a supporting curved surface 300 adapted to the user and the mandible to provide a comfortable experience for the user. Further, the mandibular bracket 30 includes a frame body and a flexible member 31 arranged on the frame body, which includes but is not limited to silicone, silk, cotton, etc., to provide comfortable and soft support for the user's mandible.

[0081] In some embodiments, as shown in Figures 1 to 3 , the positioning member 42 is located below the rotating member 41, and two first limiting structures 420 are respectively located on the two sides of the rotating member 41. This design significantly improves the stability, safety and adjustment accuracy of the cervical traction device, while simplifying the operation process and optimizing the space utilization. By placing the positioning member 42 below and using lateral limiting structures, the space inside the device is fully utilized, making the overall design more compact. This layout reduces unnecessary volume occupation, making the cervical traction device more portable and aesthetically pleasing.

[0082] It should be emphasized that the two first limiting structures 420 form a bidirectional locking mechanism (i.e. the user can lock and fix the mandibular bracket 30 regardless of forward or reverse rotation), which is very convenient for the user to use, not only improving safety, but also providing the possibility for future product upgrades or functional expansion. Moreover, the two first limiting structures 420 are respectively located on the two sides of the rotating member 41, forming a double locking mechanism. Even if one limiting structure fails, the other can still function, greatly reducing the risk of accidental unlocking and ensuring user safety.

[0083] In some embodiments, as shown in Figures 1 to 3 , one end of the rotating member 41 is fixedly connected with the mandibular bracket 30, and the other end of the rotating member 41 is provided with a second limiting structure 410, which is a first protrusion tooth, and the first protrusion tooth is circumferentially uniformly and continuously arranged around the surface of the rotating member 41.

[0084] The first limiting structure 420 is a first recess. In other embodiments, the second limiting structure 410 is a second recess, which is circumferentially uniformly and continuously arranged around the surface of the rotating member 41; and the first limiting structure 420 is a second protrusion tooth.

[0085] The first protrusion tooth and the first recess are in clamping cooperation to achieve the limiting fixation of the mandibular bracket 30.

[0086] In application, the first protrusions are evenly and continuously arranged around the surface of the rotating member 41, ensuring that each angular position can be accurately captured. Users can fine-tune within a very small angular range to find the most suitable traction position for themselves. The cooperation of multiple protrusions and grooves forms multiple-point contact, increasing the reliability of limiting and reducing the risk of sliding or loosening due to the failure of a single contact point. The close cooperation of the first protrusions and the first grooves makes the rotating member 41 very stable in the locked state, and even if subjected to external forces, it will not easily loosen or shift. This ensures that the mandibular bracket 30 always remains in the set position during use, avoiding unnecessary shaking or deviation. Because the contact area of the protrusions and grooves is large, it can better disperse the pressure from the rotating member 41, avoiding local stress concentration and prolonging the service life of mechanical components.

[0087] In application, the first protrusions are evenly and continuously arranged around the surface of the rotating member 41, allowing users to lock at any angle, providing almost unlimited adjustment options to meet the individual needs of different users. This layout is convenient for production and assembly, and also provides a foundation for modular design. Different models of cervical traction devices can flexibly adjust the number and position of protrusions and grooves according to needs, meeting diverse market demands. In particular, for users who need to accurately control the traction angle and intensity, this design can provide higher adjustment accuracy, ensuring that each treatment can achieve the best effect. Due to its stability and durability, this design is particularly suitable for users who need long-term use or frequent adjustment, such as patients with chronic cervical spondylosis or patients in rehabilitation therapy.

[0088] In some embodiments, as shown in Figures 1 to 3 The rotating member 41 is a ratchet, which is connected to the mandibular bracket 30 through a fixed shaft, and the inclined teeth on the surface of the ratchet and / or the grooves between adjacent inclined teeth form a second limiting structure 410.

[0089] The positioning member 42 is an arc-shaped rotating block, two ends of the side close to the rotating member 41 are respectively provided with positioning grooves 421, and two positioning protrusions 422 are formed on both sides of the positioning grooves 421, and the positioning grooves 421 and / or the positioning protrusions 422 form a first limiting structure 420.

[0090] The inclined teeth of the ratchet surface allow the mandibular bracket 30 to be freely adjusted in one direction (e.g., clockwise rotation) while being locked in the other direction (e.g., counterclockwise rotation). This ensures that the user will not accidentally rotate back when adjusting the traction angle due to external forces or misoperation, improving the safety of use. The present application is provided with positioning members 42 on both sides of the ratchet, i.e., the first limiting structure 420 is provided on both sides of the second limiting structure 410, so that bidirectional limiting can be achieved. Since the inclined teeth and grooves of the ratchet form the second limiting structure 410, the user can lock at the position of each tooth, achieving high-precision adjustment. After each adjustment, the ratchet will automatically lock in the current position, ensuring that the traction angle remains stable.

[0091] In some embodiments, as shown in Figures 1 to 3 The positioning member 42 and the rotating member 41 are located inside the fixed frame 10, and a push rod 43 is also provided outside the fixed frame 10, which is connected to the positioning member 42 and drives the positioning member 42 to rotate within a preset angle range by rotating the push rod 43. In this way, the user can directly control the rotation of the positioning member 42 through the external push rod 43 without the need to disassemble or open the fixed frame 10, simplifying the operation process. The user only needs to gently push the push rod 43 to adjust the angle of the mandibular bracket 30 and lock it, making the operation more intuitive and convenient.

[0092] In applications, the positioning member 42 and the rotating member 41 are integrated inside the fixed frame 10, making full use of the internal space of the device and making the overall design more compact. This layout reduces unnecessary volume occupation, making the cervical traction device more portable and aesthetically pleasing. The positioning member 42 and the rotating member 41 are located inside the fixed frame 10, avoiding the influence of external environment (such as dust, moisture) or physical damage (such as pulling, squeezing) on these components, prolonging the service life of the device. The design of the push rod 43 allows the user to lock at any angle at any time, ensuring that the mandibular bracket 30 can be stably set at the set position after each adjustment, avoiding sliding or loosening due to external forces or misoperation.

[0093] In some embodiments, as shown in Figures 1 to 3 The cervical traction device includes a lifting assembly 50 mounted on the fixed frame 10, which is used to adjust the lifting height of the mandibular bracket 30. In this way, the adjustment is more convenient and fast.

[0094] In application, adjusting the height of the lower jaw bracket 30 specifically refers to that the two ends of the lower jaw bracket 30 are rotatably connected with the fixed frame 10, and the support part of the lower jaw bracket 30 for supporting the lower jaw of the user is located in the middle part, and the height of the support part is mainly adjusted. In this way, through the lifting assembly 50, the user can accurately adjust the height of the lower jaw bracket 30 according to the length of his neck and the treatment needs. This ensures that the traction force can be evenly distributed on the neck, and avoids discomfort or poor treatment effect caused by improper height.

[0095] In some embodiments, the lifting assembly 50 is arranged on the side of the fixed frame 10 or on the front end of the fixed frame 10, that is, the direction facing the user, and the side is the direction facing the ear of the user. In this way, the user can adjust it conveniently.

[0096] In some embodiments, as shown in Figures 1 to 3 , the lifting assembly 50 includes a connecting housing 51, a screw rod 52, and a knob 53;

[0097] The connecting housing 51 is fixedly connected with the lower jaw bracket 30;

[0098] One end of the screw rod 52 is rotatably arranged on the connecting housing 51, and the other end of the screw rod 52 is rotatably arranged on the fixed frame 10;

[0099] The knob 53 is rotatably arranged on the screw rod 52, and the knob 53 drives the screw rod 52 to rotate by rotating, so that the height of the lower jaw bracket 30 changes. By rotating the knob 53 to drive the screw rod 52 to rotate, the user can fine-tune in a very small height range to find the most suitable height of the lower jaw bracket 30 for himself. This fine-tuning function is particularly suitable for treatment scenarios that require fine adjustment, such as postoperative rehabilitation or traction of sensitive parts. The rotatable arrangement between the screw rod 52 and the connecting housing 51 and the fixed frame 10 ensures stable locking at each height position, avoiding sliding or loosening caused by external force or misoperation. After adjusting the height of the lower jaw bracket 30 through the lifting assembly 50, the limiting and fixing are realized through the cooperation of the rotating part 41 and the positioning part 42.

[0100] In application, the lifting assembly 50 is provided with multiple groups, that is, it is provided in both fixed ends 100 of the fixed frame 10, so that both ends can be adjusted at the same time, or one end can be adjusted as needed, which can be suitable for users with different needs and improve the applicability of the cervical traction device.

[0101] In some embodiments, as shown in Figure 9 and Figure 10As shown, the connecting shell 51 is provided with a limiting block 511 on the side close to the mandibular bracket 30, and the side of the mandibular bracket 30 connected with the connecting shell 51 is provided with a limiting protrusion 32 in abutting cooperation with the limiting block 511. In this way, the lowest height of the mandibular bracket 30 can be limited, and even if the limiting assembly 40 is damaged, the cervical vertebra bracket can still be used. The rotation of the mandibular bracket 30 within a preset range is also achieved.

[0102] In some embodiments, as shown in Figures 1 to 3 As shown, a clamping assembly 60 is further provided below the positioning member 42, which is used to limit the rotation of the positioning member 42. In application, the clamping assembly 60 is equivalent to limiting the rotation of the positioning member 42. When the positioning member 42 is rotated by the rotating rod 43, it is rotated to the position where the positioning member 42 contacts the clamping assembly 60, and the user feels resistance, which means that the unlocking is completed. In addition, the user can choose to continue to rotate in the same direction or in the opposite direction to limit and fix the rotating member 41, so as to limit and fix the mandibular bracket 30. The design of the clamping assembly 60 makes the positioning member 42 reciprocate within a preset angle range, preventing the risk of excessive adjustment or accidental unlocking, and further improving the safety of use.

[0103] In some embodiments, as shown in Figures 1 to 3 As shown, the clamping assembly 60 includes a fixed column 61, an elastic member 62, and a steel ball 63.

[0104] The fixed column 61 is hollow inside;

[0105] The elastic member 62 is arranged in the fixed column 61;

[0106] The steel ball 63 is arranged in the fixed column 61 and abuts against the elastic member 62.

[0107] The side of the positioning member 42 close to the steel ball 63 is provided with a recessed part 423, which cooperates with the steel ball 63 to make the positioning member 42 reciprocate within a preset angle range.

[0108] In application, the elastic member 62 is a spring, one end of which is fixed in the fixed column 61, and the other end abuts against the steel ball 63, which moves inside the fixed column 61. When the user adjusts the positioning member 42, the steel ball 63 entering the recessed part 423 will produce a slight "click" sound, providing immediate operation feedback to help the user confirm each locking position. This sound feedback not only enhances the user's confidence, but also improves the accuracy of operation. The combination of the steel ball 63 and the elastic member 62 makes the positioning member 42 reciprocate smoothly within a preset angle range, reducing friction and resistance and improving the smoothness of operation. The user only needs to gently rotate the positioning member 42 to complete the adjustment, and the operation is more relaxed and convenient.

[0109] In application, the fixing frame 10 is further provided with a mounting box 13, which is used for mounting the clamping component 60, the rotating member 41 and containing the positioning member 42. A relatively closed space is specially provided for mounting the above components, which provides physical protection for the above components, avoids external interference and improves the stability in use.

[0110] In application, the clamping component 60 does not lock the positioning member 42, that is, when the positioning member 42 is subjected to the resistance of the steel ball 63, the positioning member 42 continues to rotate, the steel ball 63 is pressed down by the positioning member 42, the rotating member 41 rotates to the other side and makes the steel ball 63 cooperate with the recess 423 on the other side, that is, the positioning of the rotating member 41 can be realized on both sides. Moreover, the existence of the clamping component 60 also provides a force for the positioning member 42, so that the positioning member 42 is more closely matched with the rotating member 41, the cooperation between the first limiting structure 420 and the second limiting structure 410 is more firm, and the firmness of the limiting and fixing is improved.

[0111] In the above embodiments, the description of each embodiment has its own emphasis, and the part not described or recorded in a certain embodiment can be referred to the related description of other embodiments.

[0112] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not limit them; although the foregoing embodiments of the present application are described in detail, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the embodiments of the present application.

Claims

1. A cervical traction device, characterized in that, include: Fixture; A cervical support is connected to the fixed frame, and the fixed frame and the cervical support together form a space for the neck to pass through; The chin support is rotatably connected to the fixed frame; and The limiting component includes a rotating component and a positioning component. The rotating component is connected to the mandibular support and rotates with the rotation of the mandibular support. The positioning component is rotatably mounted on the fixing frame and reciprocates within a preset angle range. The two ends of the positioning component are respectively provided with a first limiting structure, and the rotating component is provided with a second limiting structure. The first limiting structure and the second limiting structure cooperate to limit and fix the mandibular support.

2. The cervical traction device as described in claim 1, characterized in that, The positioning element is located below the rotating element, and the two first limiting structures are located on both sides of the rotating element.

3. The cervical traction device as described in claim 1, characterized in that, One end of the rotating component is fixedly connected to the mandibular support, and the other end of the rotating component is provided with the second limiting structure. The second limiting structure is a first protruding tooth, which is uniformly and continuously arranged around the surface of the rotating component in the circumferential direction. The first limiting structure is the first groove; Alternatively, the second limiting structure is a second groove, which is uniformly and continuously arranged around the surface of the rotating part in the circumferential direction; The first limiting structure is the second convex tooth.

4. The cervical traction device as described in claim 1, characterized in that, The rotating component is a ratchet, which is connected to the mandibular support via a fixed shaft. The inclined teeth on the surface of the ratchet and / or the grooves between adjacent inclined teeth form the second limiting structure. The positioning element is an arc-shaped rotating block. Positioning grooves are respectively opened at both ends of the rotating block near the rotating element, and two positioning protrusions are formed on both sides of the positioning grooves. The positioning grooves and / or the positioning protrusions form the first limiting structure.

5. The cervical traction device as described in claim 1, characterized in that, The positioning component and the rotating component are located inside the fixed frame. A toggle lever is also provided on the outside of the fixed frame. The toggle lever is connected to the positioning component. By rotating the toggle lever, the positioning component is driven to rotate within a preset angle range.

6. The cervical traction device as described in claim 1, characterized in that, The cervical traction device includes a lifting assembly mounted on the fixation frame, the lifting assembly being used to adjust the lifting height of the mandibular support.

7. The cervical traction device as described in claim 6, characterized in that, The lifting assembly includes: The connecting shell is fixedly connected to the mandibular bracket; A screw, one end of which is rotatably mounted on the connecting housing, and the other end of which is rotatably mounted on the fixing frame; A knob is rotatably mounted on the screw. Rotating the knob drives the screw to rotate, thereby changing the height of the chin support.

8. The cervical traction device as described in claim 7, characterized in that, The connecting housing has a limiting block on the side near the mandibular bracket, and the side of the mandibular bracket connected to the connecting housing has a limiting protrusion that abuts against the limiting block.

9. The cervical traction device as described in claim 1, characterized in that, A locking component is also provided below the positioning element, the locking component comprising: A fixed column, wherein the fixed column is hollow inside; An elastic element is disposed within the fixed column; A steel ball is placed inside the fixed column and abuts against the elastic element; The positioning member has a recessed portion on the side near the steel ball, and the recessed portion cooperates with the steel ball to make the positioning member reciprocate within a preset angle range.

10. The cervical traction device according to any one of claims 1 to 9, characterized in that, The fixing frame includes: Support shell; A cover shell is placed on the support shell and forms a receiving cavity with the interior of the fixing frame; The cover shell has multiple support plates on the side facing the support shell; The rear neck support is equipped with an airbag cushion, and the external air tube and wire of the airbag cushion are located in the receiving cavity.

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