A mandibular support device for post-extubation

Abstract

The utility model relates to a kind of mandibular support devices for tracheal intubation after pulling out, it includes the support sleeve part and adjusting part connected with each other, it is characterized in that, support sleeve part includes two oppositely arranged support sleeve bodies, the outer curvature of each support sleeve body is reserved with several shuttle holes along its length direction, several shuttle lines pass in shuttle hole in the way of each other interlacing, wherein, one end of shuttle line is fixedly connected in support sleeve body interior, the other end is connected with the rotating stake surface of adjusting part, when rotating stake rotates, it can drive shuttle line to be reeled in rotating stake, to this end realize the tensioning of support sleeve part. The utility model is designed by support sleeve part and adjusting part, realize the effective fixation and support to mandibular, to reduce the potential risk caused by mandibular insufficiency. Device can flexibly adjust the supporting force of mandibular by the cooperation of shuttle line and rotating stake, improve the comfort and airway safety of patient, provide a new auxiliary tool for clinical practice.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a mandibular support device for use after extubation. Background Technology

[0002] Endotracheal intubation is a medical procedure that involves inserting a specially designed endotracheal tube into the trachea through the glottis. It is widely used in emergency and anesthesia settings to ensure a patient's airway remains open. While this technique is crucial for maintaining vital signs, its inherently invasive nature also presents potential risks, including but not limited to airway injury, infection, and other complications, which are particularly pronounced during prolonged intubation.

[0003] Following extubation, some patients may experience mandibular insufficiency, a complication often overlooked in clinical practice. Insufficient mandibular closure not only affects patient comfort but can also weaken airway stability and increase the incidence of respiratory complications. Therefore, effective management of post-extubation mandibular insufficiency is crucial for improving patient safety and treatment outcomes.

[0004] Currently, the medical community pays close attention to the technical details of endotracheal intubation and airway management after extubation, and has made some progress. However, existing solutions for mandibular support and fixation are still insufficient, lacking a systematic design to address potential mandibular dysfunction after extubation. Developing devices specifically designed to support and stabilize the mandible can not only alleviate post-extubation discomfort but also optimize the patient's airway status, thereby enhancing the quality and safety of clinical care.

[0005] Existing technologies include devices that assist in mandibular closure. For example, CN216985346U discloses a mandibular anti-dislocation device. This device can limit the angle at which the patient's mouth opens, and the fixed position of the mandibular support can be adjusted through an adjustable structure, thereby adjusting the angle at which the patient's mouth opens. The adjusting structure of this device uses the meshing of gears and racks to adjust the position of the mandibular support. However, this rigid connection limits its flexibility, especially when dealing with non-standard shaped mandibles, and may be insufficiently flexible when using it for extended periods, potentially leading to wear and tear and affecting accuracy.

[0006] Furthermore, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making this utility model, but due to space limitations, not all details and contents were listed in detail. However, this does not mean that this utility model does not have the features of these prior art. On the contrary, this utility model has all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Utility Model Content

[0007] In view of the shortcomings of the prior art, this application proposes a jaw support device for extubation after endotracheal intubation, which aims to solve one or more technical problems in the prior art.

[0008] This utility model relates to a chin support device for use after extubation of endotracheal intubation, including a support sleeve and an adjustment part connected to each other. The support sleeve includes two support sleeve bodies arranged opposite each other. Each support sleeve body has several rows of shuttle holes reserved on its outer curved surface along its length direction. Several shuttle lines cross different rows of shuttle holes obliquely and advance gradually along the length direction of the outer curved surface. One end of the shuttle line is fixed to the inside of the support sleeve body, and the other end passes through the shuttle hole and is movably connected to the adjustment part on the outside of the support sleeve body.

[0009] The device's support section consists of two opposing support bodies that effectively cover the wearer's mandibular region, providing necessary support and ensuring the mandible remains closed after tube removal. By connecting the support bodies to the adjustment mechanism, dynamic adjustment of the mandibular support force can be achieved to meet the needs of different individuals. Secondly, the shuttle hole design on the curved surface of the support bodies and the staggered configuration of the shuttle lines provide a flexible tensioning mechanism. When the rotating post rotates, the winding of the shuttle lines tensions the support section, thereby enhancing the stability of the support. This design not only improves the device's support effect on the mandible but also reduces mandibular displacement caused by insufficient fixation, thus lowering the risk of complications. Furthermore, the staggered design of the shuttle lines ensures that the tension is evenly applied to the wearer's head and mandibular region, effectively avoiding discomfort that may arise from uneven local force. Finally, the rotating post, as the core component of the adjustment mechanism, is simple and intuitive to operate, allowing wearers or medical personnel to quickly adjust the tension of the mandibular support in clinical practice. This design can effectively improve the comfort and safety of patients after endotracheal intubation, and help improve the overall quality of medical care and the patient's recovery experience.

[0010] According to a preferred embodiment, the adjustment unit includes a base and a rotating pile. The rotating pile is rotatably connected to the base, and connectors are provided on both sides of the base to connect to the ends of two support bodies, respectively. A fixed pile, fixedly connected to the base, is fitted around the rotating pile. Several through holes are provided on the fixed pile to allow the shuttle line connected to the rotating pile to pass through. The base provides a stable support platform for the entire adjustment unit, ensuring that the rotating pile can rotate smoothly without displacement or wobbling, so that the device can always maintain the required support force during use. The connection design between the fixed pile and the base simplifies the guidance path of the shuttle line. The through holes on the fixed pile allow the shuttle line to pass through smoothly, achieving the storage of the shuttle line and reducing friction and wear of the line.

[0011] According to a preferred embodiment, an adjustment knob is fitted to the top of the rotating post, extending beyond the area enclosed by the fixed post. A ratchet, integrally formed with the rotating post, is mounted on the side of the rotating post. Rotation of the adjustment knob enables the ratchet to rotate synchronously along the same axis. The adjustment knob allows the wearer or medical personnel to easily adjust the tension or support force of the device through a simple rotation, improving ease of use and efficiency. The ratchet design allows for precise synchronous rotation of the rotating post during adjustment. The ratchet mechanism ensures that each rotation of the knob translates into a corresponding movement of the rotating post. The "click" sound or resistance provided by the ratchet allows the wearer or medical personnel to clearly perceive the progress and force of the adjustment, thus ensuring accuracy. Furthermore, the structural characteristics of the ratchet mechanism effectively prevent the rotating post from accidentally loosening under load. The interlocking ratchet ensures that the rotating post remains in the set position under applied force, thereby improving the safety of the device.

[0012] According to a preferred embodiment, the sidewall of the rotating pile is provided with several guide grooves with pre-reserved gaps, allowing the shuttle line to be wound into the guide grooves along a predetermined path. The guide grooves ensure that the shuttle line can be wound along the predetermined path, avoiding tangling and misalignment of the wire. This reduces direct contact between the wire and other components, thereby reducing friction and wear. This design improves the durability of the device and extends the service life of the shuttle line.

[0013] According to a preferred embodiment, the fixing post is equipped with a pull rod that penetrates its sidewall. The pull rod extends radially along the ratchet, and a stop is provided at one end of the pull rod inside the fixing post. The stop can partially extend between adjacent ratchet teeth in the circumferential direction of the ratchet. When the stop partially extends between adjacent ratchet teeth, it effectively prevents accidental rotation of the ratchet. This design enhances the locking capability of the device, improves the stability of the entire system under external forces or loads, and ensures the safety of the device during use. Furthermore, the combination of the fixing post and the pull rod simplifies the operation. The wearer or medical personnel can unlock the adjustment unit by simply pulling the pull rod without complicated steps, thereby improving overall operational efficiency.

[0014] According to a preferred embodiment, the stop is configured with two contact surfaces. When the rotating pile rotates in a first direction along the shuttle line and retracts onto its sidewall, the ratchet teeth abut against the stop's curved contact surface. When the rotating pile rotates in a second direction along the shuttle line and releases onto its sidewall, the ratchet teeth abut against the stop's planar contact surface. This combination of curved and planar contact allows the stop to achieve optimal contact performance under different operating conditions. In the retraction direction, the curved contact effectively disperses pressure, reduces localized wear, and extends the component's service life. In the release direction, the planar contact provides a larger contact area, ensuring stability and reliability. The curved contact design allows for a smoother transition during the rotating pile's retraction, avoiding resistance caused by abrupt contact and improving operational fluidity. The planar contact design provides a stronger locking effect, ensuring that the rotating pile does not accidentally loosen under load, thereby enhancing safety.

[0015] According to a preferred embodiment, an elastic element is disposed on the outside of the pull rod. One end of the elastic element abuts against a stop block, and the other end is connected to a fixing block inside the fixing post along the length of the rod. The characteristics of the elastic element allow it to automatically return to its initial state after the pull rod is released. This design simplifies the operation process, reduces manual intervention, and improves the ease of use of the equipment. The abutment design between the elastic element and the stop block provides a stable locking effect. During use, the elastic element maintains a certain pressure to ensure that the stop block and ratchet are in close contact, thereby preventing accidental loosening and improving the stability of the device when winding the shuttle.

[0016] According to a preferred embodiment, each of the two support bodies has a latch at its end furthest from the adjustment part. The latch includes a pair of interlocking hook-like structures to achieve a detachable connection between the two support bodies. The latch design allows for quick and easy disassembly and connection between the two support bodies. The wearer does not require special tools and can easily assemble or disassemble the device, making it convenient to wear it in a comfortable position.

[0017] According to a preferred embodiment, the inner curved surface of the headband body is equipped with ear pads and a chin rest. The ear pads correspond to the wearer's ear position, and the chin rest corresponds to the wearer's chin and is positioned adjacent to the buckle. The ear pads are designed to effectively conform to the wearer's ear shape, providing better comfort and reducing pressure during wear. The chin rest is also designed with the chin shape in mind, better distributing pressure and improving wearing comfort. Furthermore, the ear pads and chin rest complement each other, effectively securing the headband body to the wearer's head position, reducing slippage or displacement during activity, and improving the stability and safety of the device.

[0018] According to a preferred embodiment, the ear pads and chin rest are made of multiple layers of soft materials, with the innermost layer being a sweat-wicking and breathable layer and the outermost layer being an antibacterial material. The sweat-wicking and breathable layer is designed to effectively absorb the wearer's sweat, keeping the skin dry and reducing discomfort caused by moisture. The outer antibacterial material effectively inhibits the growth of bacteria and microorganisms, reducing the risk of skin infections or allergic reactions caused by wearing the garment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a preferred mandibular support device provided by this utility model;

[0020] Figure 2 This is a schematic diagram of the preferred shuttle line distribution inside the support sleeve provided by this utility model;

[0021] Figure 3 This is a schematic diagram showing a preferred connection position between the support portion and the adjustment portion provided by this utility model;

[0022] Figure 4 This is a perspective detail of a preferred internal structure of the adjustment part provided by this utility model;

[0023] Figure 5 This is an example diagram of a preferred device provided by this utility model worn on a user's head.

[0024] List of reference numerals

[0025] 100: Support sleeve; 110: Support sleeve body; 111: Shuttle hole; 120: Ear protector pad; 130: Chin rest; 140: Connector; 150: Buckle; 200: Adjustment part; 210: Base; 220: Fixing post; 230: Rotating post; 231: Adjustment knob; 232: Ratchet; 240: Shuttle line; 250: Locking assembly; 251: Pull rod; 252: Elastic element; 253: Stop; 254: Fixing block. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings.

[0027] Location definition: combined with Figure 4 The first direction of rotation of the rotating pile 230 is clockwise, which allows the shuttle line 240 to be wound up on the side wall of the rotating pile 230; the second direction of rotation of the rotating pile 230 is counterclockwise, which allows the shuttle line 240 to be released from the side wall of the rotating pile 230.

[0028] This utility model relates to a chin support device for use after extubation, such as... Figure 1 , Figure 5As shown, it includes a support portion 100 and an adjustment portion 200 connected to each other. The support portion 100 includes two opposing arc-shaped support bodies 110. The support bodies 110 are ergonomically designed in a crescent shape, and their inner surfaces have a curved structure that matches the wearer's cranial contour, thereby ensuring stable and comfortable support for the jaw and cheeks. Each support body 110 has a connection interface at one end near the adjustment portion 200 for connecting to the adjustment portion 200.

[0029] Preferably, the adjustment part 200 is connected to the connection interface of the support body 110 via a matching connector 140. The connection interface is a matching structure located at the end of the support body 110, which can be a slot, hole, or recess (e.g., a threaded hole or snap-fit ​​groove) for mates with the pin / bolt of the connector 140 to achieve mechanical locking. The connector 140 is configured as a strip-shaped or similar flexible component (such as rubber, silicone, or elastic plastic), symmetrically distributed on both sides of the adjustment part 200. One end of each connector 140 is fixedly connected to the adjustment part 200, and the other end is detachably fixed to the end of the support body 110 via a pin or bolt. The flexible material design allows the connector 140 to have a certain degree of deformation, providing freedom of movement between the adjustment part 200 and the support body 110 so that the support device can adapt to the differences in head shape of different wearers.

[0030] Preferably, such as Figure 1 , Figure 2 As shown, the outer curved surface of the support body 110 has two or more rows of staggered shuttle holes 111 along its length to guide one, two or more shuttle lines 240 through in an interlaced pattern. The starting point of each row of shuttle holes 111 is located at the end of the support body 110 away from the adjusting part 200, and the ending point is located at the end of the support body 110 closer to the adjusting part 200. The total length of each row of shuttle holes 111 is adapted to the length of the support body 110. Each row of shuttle holes 111 can be distributed on both sides of the center line of the outer curved surface of the support body 110, and is evenly distributed along the circumference of the outer curved surface. The lines connecting the positions of the holes in different rows are parallel to each other in the length direction, but staggered in the horizontal direction. For example, the first hole in the left row and the first hole in the right row are staggered by half a hole distance in the axial direction. By configuring two or more rows of shuttle holes 111 on the outer surface of the support body 110, the shuttle line 240 can travel back and forth between different rows of shuttle holes 111 along a diagonal path, forming an interwoven mesh structure. This design distributes the tension force across the entire outer curved surface of the support body 110, avoiding local stress concentration and significantly improving the uniformity of mandibular support.

[0031] Preferably, one end of each shuttle thread 240 is securely fixed to an anchor point inside the sleeve body 110, while the other end extends and connects to the rotating post 230 of the adjustment section 200. The rotating post 230 is equipped with a suitable winding structure, which can orderly wind up or release the shuttle thread 240 when the rotating post 230 is rotated in a controlled manner, thereby achieving precise adjustment of the tension or relaxation of the sleeve section 100. The anchor point is a fixing structure inside the sleeve body 110 used to fix the proximal end (starting end) of the shuttle thread 240. It is located at the end away from the adjustment section 200 in the sandwich structure between the inner and outer curved surfaces of the sleeve body 110, to ensure that the shuttle thread 240 does not slip or shift during tensioning or release. The anchor point can be a groove, metal buckle, clip, or sewing point embedded inside the sleeve body 110, so that the proximal end of the shuttle thread 240 can be fixed to the anchor point by gluing, knotting, or sewing. The anchor point is preferably aligned with the vertical projection position of the corresponding shuttle hole 111.

[0032] The sleeve body 110 preferably forms a diagonally cross-woven mesh structure by configuring two shuttle lines 240 (the first shuttle line and the second shuttle line) that pass through the double-row shuttle holes 111. Specifically, the proximal end of the first shuttle line is fixed to the inner side of the proximal end of the first row of the sleeve body. After exiting from the first shuttle hole of the proximal end of the first row, it crosses along a diagonal path to the second shuttle hole of the adjacent row and enters. Then, it moves along the length direction (non-diagonal crossing) inside the sleeve body to the third shuttle hole of the adjacent row and exits. It then crosses back to the fourth shuttle hole of the first row along a reverse diagonal path and enters again, thus extending in a cycle until it is fixed at the distal end. The second shuttle line passes through a symmetrical path, with its proximal end fixed to the inner side of the proximal end of the adjacent row. It passes through the first shuttle hole of the adjacent row, the second shuttle hole of the first row, the third shuttle hole of the first row, and the fourth shuttle hole of the adjacent row in sequence, forming a diamond mesh structure interwoven with the first shuttle line.

[0033] The sleeve body 110 can also be equipped with a shuttle line 240 that travels back and forth alternately in the double-row shuttle holes 111. The proximal end of the shuttle line 240 is fixed to an anchor point on the inner side of the proximal end of the left row shuttle hole 111, and the distal end exits from the first hole of the left row, crosses along a diagonal path to the second hole of the right row shuttle hole 111, and enters. Inside the sleeve body 110, it moves along the length direction to the third hole of the right row, exits, and then crosses along a reverse diagonal path to the fourth hole of the left row. Inside, it moves to the fifth hole of the left row, exits, continues diagonally across to the sixth hole of the right row, and so on until the distal end is fixed to the rotating post 230 of the adjustment unit 200.

[0034] Preferably, the sleeve body 110 may also be configured with three rows of shuttle holes 111 for the three shuttle lines 240 to interweave and weave a mesh structure. The three rows of shuttle holes 111 are evenly distributed circumferentially along the outer curved surface of the sleeve body 110, with equal spacing between adjacent rows, and the holes in the same row are equidistant along the axial direction, with the holes in adjacent rows being appropriately staggered in the axial direction. The proximal end of the first shuttle line is fixed to the inner anchoring groove of the proximal end of the first row. After exiting from the first shuttle hole 111 of the proximal end of the first row, it successively crosses the diagonal path to the second shuttle hole 111 of the second row and enters, then continues diagonally to the third shuttle hole 111 of the third row and exits. It then moves along the length direction inside the sleeve body 110 to the fourth shuttle hole 111 of the third row and exits. In the opposite direction, it successively crosses the diagonal path back to the fifth shuttle hole 111 of the second row and the sixth shuttle hole 111 of the first row, thus extending in a cycle to the distal end for fixation. The second shuttle line begins with the same pattern of travel in the innermost anchoring groove of the second column, successively crossing the holes in the third and first columns, forming a spiral path symmetrical to the first shuttle line. The third shuttle line begins with the innermost anchoring groove of the third column, and its travel path is synchronously offset, forming a circumferentially distributed three-line woven network. The three-line path covers all three columns of holes through alternating cycles of continuous oblique crossings and axial reversals, forming a honeycomb-like interwoven structure on the surface of the support body 110, so that the tension force is uniformly transmitted along the circumference and axial directions.

[0035] Preferably, such as Figure 3 , Figure 4 As shown, the adjusting part 200 includes a base 210, which is a frame structure with an internal shaft hole. The shaft hole is arranged along the vertical centerline of the base 210, and the mounting plane of the bottom surface matches the curvature of the inner curved surface of the support body 110. The rotating pile 230 is axially positioned by passing through the shaft hole of the base 210 via a rotating shaft with a bearing. The outer diameter of the rotating shaft and the inner diameter of the shaft hole maintain a clearance fit. The connecting parts 140 are symmetrically distributed in the threaded holes or slots reserved on the outer walls of both sides of the base 210, specifically located at both ends of the aforementioned horizontal extension direction of the shaft hole. The axis of the connecting parts 140 is orthogonal to the vertical centerline of the base 210, ensuring that the force on the two sides of the support body 110 is symmetrical and uniform.

[0036] Preferably, such as Figure 3 , Figure 4As shown, a fixed stake 220 is fitted around the rotating stake 230, and the fixed stake 220 is configured to be coaxially arranged with the rotating stake 230. The fixed stake 220 is fixed to the base 210 by integral molding or threaded connection, ensuring that the fixed stake 220 will not shift or loosen during use, thereby maintaining the stability and reliability of the adjustment unit 200. To facilitate the smooth passage of the shuttle 240, multiple through holes are provided on the fixed stake 220. The design of these through holes takes into account the smooth passage of the shuttle 240, using smooth inner walls to reduce wear and resistance, and avoid unnecessary damage to the shuttle 240. At the same time, the size and spacing of the through holes are designed to ensure that the shuttle 240 can slide freely without interfering with each other during adjustment.

[0037] Preferably, such as Figure 3 , Figure 4 As shown, an adjustment knob 231 is fitted on the portion of the rotating post 230 that extends beyond the area enclosed by the fixed post 220. This adjustment knob 231 preferably has a circular design with an anti-slip texture on its outer surface to improve stability during operation. The adjustment knob 231 has an internal threaded structure that engages with the shaft assembly of the rotating post 230, ensuring that the rotation of the adjustment knob 231 is efficiently and stably transmitted to the rotating post 230, thereby achieving precise adjustment of the tension of the support sleeve 100. To enhance the adjustment function and ensure stability during rotation, an integrally formed ratchet 232 is provided on the side of the rotating post 230. This ratchet 232 is designed as a ring gear with helical teeth to improve meshing efficiency and smooth rotation. When the adjustment knob 231 is rotated, the internal threaded structure causes the ratchet 232 to rotate synchronously in the same axial direction, thereby driving the rotating post 230 to rotate accordingly, achieving fine adjustment of the tension of the support sleeve 100.

[0038] Preferably, such as Figure 3 , Figure 4 As shown, the side wall of the rotating pile 230 is provided with several guide grooves with reserved gaps. These guide grooves preferably adopt a U-shaped cross-section design to form a stable channel, ensuring that the shuttle line 240 is wound up in an orderly manner along a predetermined path. The guide grooves are positioned below the ratchet 232 to ensure that the shuttle line 240 makes direct contact with the teeth of the ratchet 232 during adjustment, reducing the risk of wear due to friction. The number of guide grooves is arranged to meet the requirement of uniform distribution of the shuttle line 240, so as to avoid overlapping or tangling during the winding process, thereby improving the operational safety and reliability of the equipment. The bottom of the guide grooves is smoothed to reduce friction, reduce wear on the surface of the shuttle line 240, and extend its service life.

[0039] Preferably, such as Figure 3 , Figure 4As shown, the fixing post 220 is equipped with a locking assembly 250 that extends through its sidewall. The locking assembly 250 includes a pull rod 251, an elastic element 252, a fixing block 254, and a stop block 253.

[0040] The pull rod 251 is made of high-strength alloy material, possessing excellent rigidity and durability. Its rod body has a cylindrical structure and extends radially along the ratchet 232. To allow the pull rod 251 to extend into the fixed post 220, a through hole is pre-drilled in the side wall of the fixed post 220. A fixing block 254, designed as a ring, is disposed within this through hole, allowing the pull rod 251 to slide smoothly through the through hole in the side wall of the fixed post 220 without radial displacement. The diameter of the circular hole in the fixing block 254 matches the diameter of the pull rod 251, ensuring the stability and accuracy of the pull rod 251's movement.

[0041] An elastic element 252 is externally disposed on the pull rod 251, preferably arranged to be sleeved on the body of the pull rod 251. One end of the elastic element 252 abuts against the stop block 253, and the other end is connected along the length of the pull rod 251 to the fixing block 254 inside the fixing post 220, thereby providing a stable restoring force for the stop block 253. When the external force is removed, the stop block 253 can quickly return to its initial position under the action of the elastic element 252, realizing the locking or releasing function of the ratchet 232. This reset mechanism ensures the reliability and response speed of the device under different operating conditions.

[0042] The stop block 253, located at one end of the pull rod 251 inside the fixed post 220, is designed as a flat, arc-shaped body, partially extending between adjacent ratchet teeth of the ratchet 232, designed to achieve dynamic locking and releasing functions. The stop block 253 has two contact surfaces: a curved contact surface and a flat contact surface, adapted to the rotation of the rotating post 230 along a first direction and a second direction, respectively. Specifically, when the rotating post 230 rotates along the shuttle line 240 and retracts into its sidewall in the first direction, the curved contact surface of the stop block 253 abuts against the ratchet teeth of the ratchet 232. The ratchet teeth of the ratchet 232 compress the stop block 253, generating a component force along the pull rod 251, causing the stop block 253 to move away from the ratchet 232 along the length of the pull rod 251. This movement ensures that the first-direction movement of the ratchet 232 is not restricted by the stop block 253, and due to the action of the elastic element 252, the stop block 253 can quickly return to its original position after the rotating post 230 stops rotating. Conversely, when the rotating post 230 rotates in the second direction released along the shuttle line 240, the ratchet teeth of the ratchet 232 abut against the planar contact surface of the stop block 253, providing stable support and preventing the ratchet 232 from rotating in the second direction on its own during the release of the shuttle line 240. In this state, the stop block 253 can only disengage from the ratchet teeth of the ratchet 232 when the wearer operates the handle to pull the lever 251 to overcome the resistance of the elastic element 252, thereby allowing the ratchet 232 to rotate in the second direction.

[0043] Preferably, such as Figure 1 , Figure 5 As shown, each of the two bracket bodies 110 has a latch 150 at its end furthest from the adjusting part 200. The latch 150 can be designed as a pair of interlocking hook-like structures, with a curved hook shape, to achieve a detachable connection between the two bracket bodies 110. The hook portion of each latch 150 has a certain degree of elasticity, allowing it to generate appropriate engagement force during connection and disconnection, preventing accidental separation due to external forces. Furthermore, the inner surface of the latch 150 and the contact surface of the bracket body 110 are smoothed to reduce friction and prevent damage during disassembly.

[0044] Preferably, such as Figure 1 , Figure 5 As shown, the inner curved surface of the ear cup body 110 is equipped with an ear warmer pad 120 and a chin rest 130. The ear warmer pad 120 is designed in a crescent shape that conforms to the anatomical features of the human ear to ensure that it corresponds to the wearer's ear position. The ear warmer pad 120 is made of multi-layer composite material. The innermost layer is a sweat-absorbing and breathable layer that can effectively wick away moisture and keep the wearer's ears dry and comfortable. The outer layer (i.e., the layer in contact with the wearer) is made of antibacterial material to prevent bacterial growth and improve hygiene during wear. The ear warmer pad 120 is firmly connected to the ear cup body 110 by heat pressing or bonding to ensure that it will not shift due to friction or external force during use. The chin rest 130 is designed to match the wearer's jawline. It is adjacent to the buckle 150 and has a streamlined structure. Combined with the hand-shaped design, the chin rest 130 provides support while enhancing overall comfort. During the design process, the ear pads 120 and chin rests 130 can be made of soft materials with excellent memory properties and durability, such as TPU or silicone, which can maintain their shape and function during repeated use.

[0045] It should be noted that the above specific embodiments are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this utility model, and these solutions all fall within the scope of this utility model and its protection scope. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. Throughout the text, features introduced by "preferred" are merely optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A chin support device for use after extubation, comprising a support portion (100) and an adjustment portion (200) connected to each other, characterized in that, The sleeve portion (100) includes two oppositely arranged sleeve bodies (110). Each of the bracket bodies (110) has several rows of shuttle holes (111) reserved on its outer curved surface along its length direction. Several shuttle lines (240) obliquely cross different rows of shuttle holes (111) and gradually advance along the length direction of the outer curved surface. One end of the shuttle line (240) is fixed to the inside of the bracket body (110), and the other end passes through the shuttle hole (111) and is movably connected to the adjustment part (200) on the outside of the bracket body (110). The ends of the two bracket bodies (110) away from the adjustment part (200) are equipped with buckles (150). The inner curved surface of the cover body (110) is equipped with an ear pad (120) and a chin support (130) made of multiple layers of soft materials. The innermost layer is a sweat-absorbing and breathable layer, and the outer layer is an antibacterial material. The ear pad (120) corresponds to the position of the wearer's ear, and the chin support (130) corresponds to the wearer's chin and is configured adjacent to the buckle (150).

2. The apparatus according to claim 1, characterized in that, The adjusting part (200) includes a base (210) and a rotating pile (230), the rotating pile (230) being rotatably connected to the base (210), and connecting members (140) are arranged on both sides of the base (210) to connect to the ends of the two bracket bodies (110) respectively. The rotating pile (230) is fitted with a fixed pile (220) that is fixedly connected to the base (210). The fixed pile (220) has several through holes to allow the shuttle line (240) connected to the rotating pile (230) to pass through.

3. The apparatus according to claim 2, characterized in that, In the rotating pile (230), an adjustment knob (231) is fitted on the top of the area enclosed by the fixed pile (220); a ratchet (232) is integrally arranged on the side of the rotating pile (230), and the rotation of the adjustment knob (231) can realize the synchronous rotation of the ratchet (232) along the same axis.

4. The apparatus according to claim 2, characterized in that, The rotating pile (230) has several guide grooves with reserved gaps on its side wall, so that the shuttle line (240) can be wound into the guide grooves along a predetermined path.

5. The apparatus according to claim 3, characterized in that, The fixed post (220) is provided with a tie rod (251) through its sidewall. The rod (251) extends radially along the ratchet (232), and a stop (253) is provided at one end of the rod inside the fixed post (220). The stop (253) can partially extend between adjacent ratchet teeth of the ratchet (232) in the circumferential direction.

6. The apparatus according to claim 5, characterized in that, The stop (253) is configured to have two contact surfaces, wherein, When the rotating pile (230) rotates in a first direction along the shuttle line (240) and is wound up on its side wall, the ratchet teeth of the ratchet (232) and the stop block (253) are configured to abut against the curved contact surface; When the rotating pile (230) rotates in a second direction along the shuttle line (240) released on its side wall, the ratchet teeth of the ratchet (232) abut against the stop block (253) with a planar contact surface.

7. The apparatus according to claim 5, characterized in that, The tie rod (251) has an elastic element (252) on its outside. One end of the elastic element (252) abuts against the stop block (253), and the other end is connected to the fixing block (254) inside the fixing pile (220) along the length of the rod.

8. The apparatus according to claim 1, characterized in that, The buckle (150) includes a pair of interlocking hook-like structures to enable a detachable connection between the two sleeve bodies (110).

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