Multifunctional oral cavity supporting device and using method thereof

Through the design of a multifunctional oral support device, the oral injury problem during radiotherapy of malignant tumors in the head and neck is solved, real-time support and protection of the oral cavity is achieved, reducing radiation damage, alleviating symptoms, and improving rehabilitation effect.

CN120242338AActive Publication Date: 2025-07-04CANCER CENT OF GUANGZHOU MEDICAL UNIV
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Patent Information

Application Number
CN202510402039.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2025-07-04
Estimated Expiration
2045-04-01

AI Technical Summary

Technical Problem

During the radiotherapy of malignant tumors in the head and neck, soft tissues, teeth and related organs in the oral cavity are susceptible to radiation damage, resulting in radioactive oral mucositis, dry mouth, gingivitis, and restricted mouth opening, which affects the patient's quality of life and endangers life.

Method used

A multifunctional oral support device is designed, including a maxillary stent and a mandible stent, equipped with airbag assembly, angle sensor, radiation protection assembly and atomization assembly, connected to the sensing assembly through a controller, to monitor and adjust the oral status in real time to provide support and protection.

Benefits of technology

Effectively assist patients in opening their mouths, protecting the temporomandibular joint, blocking radiation, alleviating dry oral symptoms, adjusting recovery methods in real time, and improving the patient's treatment and rehabilitation effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of oral cavity protection and rehabilitation health care, and particularly relates to a multifunctional oral cavity supporting device and a using method thereof.The device can assist a patient in opening the mouth when the patient is treated, the oral cavity opening degree of the patient can be obtained in real time through an angle sensor, and discomfort / injury of the patient due to the too large oral cavity opening degree is avoided; meanwhile, the radioactive ray protection assembly is arranged, so that part of radioactive ray radiation can be shielded, and damage of radiation to adjacent organs outside a radiotherapy target region is reduced; an atomization assembly is arranged, artificial saliva or an external epidermal growth factor medicament is subjected to fine atomization treatment and sprayed into the oral cavity and the deep part of the oropharynx of the patient, and the xerostomia / mucosa injury of the patient is relieved; during recovery training, the oral cavity state of the patient can be known in real time through the arrangement of the first induction assembly and the second induction assembly, and then the recovery mode can be adjusted in time.
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Description

Technical Field

[0001] The present invention belongs to the technical field of oral protection and rehabilitation care, and particularly relates to a multifunctional oral support device and a using method thereof. Background Art

[0002] During the radiotherapy of head and neck malignancies, oral soft tissues, teeth and related organs are easily damaged by radiation, resulting in radiation-induced oral mucositis (with an incidence rate of over 90%), dry mouth, gingivitis, limited mouth opening and other oral radiation toxicity reactions, seriously affecting the quality of life of patients and even endangering life. In addition, the temporomandibular joint damage after head and neck radiotherapy may lead to varying degrees of limited mouth opening or even trismus, further affecting the chewing, swallowing and speech functions of patients.

[0003] Therefore, a multifunctional oral support device and a using method thereof are proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a multifunctional oral support device and a using method thereof to solve the above problems.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] A multifunctional oral support device includes: an upper jaw bracket located at the upper jaw bone part of the oral cavity, a lower jaw bracket located at the lower jaw bone part of the oral cavity. The upper jaw bracket and the lower jaw bracket are hinged to each other. Two airbag assemblies are arranged between the upper jaw bracket and the lower jaw bracket. Both of the two airbag assemblies are communicated with an inflation device. A first sensing assembly is arranged between the upper jaw bracket and / or the lower jaw bracket and the upper / lower dental arches. An angle sensor is arranged between the upper jaw bracket and the lower jaw bracket. A radiation protection assembly is arranged between the upper jaw bracket and the lower jaw bracket, and the radiation protection assembly is located on both sides of the tongue and / or in the oral vestibule area. A atomization assembly is detachably connected to the lower jaw bracket;

[0007] The first sensing assembly, the inflation device, the atomization assembly and the angle sensor are all electrically connected to a controller;

[0008] The controller is electrically connected to a second sensing assembly, and the second sensing assembly is pasted on the head for sensing the movement of facial muscles during biting.

[0009] In the multi-functional oral support device of the present invention, the airbag assembly includes an airbag body. The top surface of the airbag body is fixedly connected to the upper jaw bracket, and the bottom surface of the airbag body is fixedly connected to the lower jaw bracket. A plurality of limiting structures are fixedly connected inside the airbag body. The plurality of limiting structures are arranged at equal intervals from top to bottom. The limiting structure includes a plurality of transverse ribs. Both ends of the transverse ribs are fixedly connected to opposite inner side walls inside the airbag body. The plurality of transverse ribs are arranged at intervals in sequence. Both ends of longitudinal ribs are fixedly connected to the other two opposite inner side walls inside the airbag body respectively. The plurality of longitudinal ribs are arranged at intervals in sequence. The transverse ribs are perpendicular to and fixedly connected to the longitudinal ribs.

[0010] In the multi-functional oral support device of the present invention, the inflation device is communicated with an inflation tube. One end of the inflation tube away from the inflation device is communicated with a first connector. The first connector is fixedly connected to the airbag body and communicated with the inner cavity of the airbag body. A sealing gasket is arranged between the first connector and the inflation tube;

[0011] The outer side of the inflation tube is rotatably connected with a second connector. The second connector is threadedly connected to the first connector.

[0012] In the multi-functional oral support device of the present invention, a fixing block is fixedly connected inside the first connector. A stepped hole is coaxially opened on the fixing block. The large end of the stepped hole faces the airbag body. A slider is slidably connected inside the large end of the stepped hole. A plurality of air holes are circumferentially opened on the slider. The air holes are close to the outer edge of the slider. A sealing strip is circumferentially fixedly connected to one side of the stepped hole. The sealing strip is located inside the plurality of air holes. The sealing strip abuts against the stepped surface of the stepped hole;

[0013] A connecting rod is coaxially fixedly connected to the slider. The diameter of the connecting rod is smaller than the inner diameter of the small end of the stepped hole. The connecting rod passes through the small end of the stepped hole and is fixedly connected to a baffle. A spring is sleeved on the outer side of the connecting rod. One end of the spring abuts against the fixing block, and the other end of the spring abuts against the baffle;

[0014] A trigger assembly is detachably connected between the inflation tube and the first connector. The trigger assembly abuts against the baffle.

[0015] In the multi-functional oral support device of the present invention, a first bracket adapted to the upper jaw teeth is opened on the top surface of the upper jaw bracket. The upper jaw teeth are located inside the first bracket;

[0016] A second bracket adapted to the lower jaw teeth is opened on the bottom surface of the lower jaw bracket. The lower jaw teeth are located inside the second bracket.

[0017] In the multi-functional oral support device of the present invention, flexible layers are bonded inside both the first bracket and the second bracket.

[0018] In the multi-functional oral support device of the present invention, the first sensing component includes a plurality of pressure sensors disposed at the bottom of the first bracket and the bottom of the second bracket, and the plurality of pressure sensors are correspondingly arranged at the stress points when the teeth bite.

[0019] In the multi-functional oral support device of the present invention, the radiation protection component includes a first plug-in groove group and a second plug-in groove group. The first plug-in groove group includes four first plug-in grooves. Two of the first plug-in grooves are opened on the bottom surface of the upper jaw bracket and are located on both sides of the tongue, and the other two first plug-in grooves are opened on the top surface of the lower jaw bracket and are located on both sides of the tongue;

[0020] The second plug-in groove group includes four second plug-in grooves. Two of the second plug-in grooves are fixedly connected to opposite sides of the upper jaw bracket and are located in the oral vestibule area, and the other two second plug-in grooves are fixedly connected to opposite sides of the lower jaw bracket and are located in the oral vestibule area;

[0021] A shielding plate is inserted between the two corresponding first plug-in grooves and / or the two corresponding second plug-in grooves up and down.

[0022] In the multi-functional oral support device of the present invention, the upper jaw bracket and the lower jaw bracket are made of porous materials, and a phase change material is filled in the upper jaw bracket and the lower jaw bracket. The phase change material carries a drug, and the phase change material undergoes a phase change under the action of oral temperature to release the carried drug.

[0023] A method for using a multi-functional oral support device, based on the multi-functional oral support device, includes the following steps:

[0024] During treatment:

[0025] Connect the airbag component to the inflation device. At this time, the upper jaw bracket and the lower jaw bracket are closed. Send the upper jaw bracket and the lower jaw bracket into the patient's oral cavity and engage with the teeth. Control the inflation device to inflate the airbag component through the controller until the patient's oral cavity opens to the treatment angle. Remove the inflation device, install the radiation protection component and the atomization component, and start the treatment;

[0026] During rehabilitation training:

[0027] Connect the airbag component to the inflation device. At this time, the upper jaw bracket and the lower jaw bracket are closed. Send the upper jaw bracket and the lower jaw bracket into the patient's oral cavity and engage with the teeth. Control the inflation device to inflate / deflate the airbag component through the controller to realize the opening and closing of the patient's oral cavity. The second sensing component and the first sensing component transmit the patient's training information to the controller.

[0028] Compared with the prior art, the present invention has the following advantages and technical effects:

[0029] The device of the present invention can assist the patient to open the mouth during treatment. The angle sensor can be used to obtain the mouth opening degree of the patient in real time, avoiding discomfort or injury caused by excessive mouth opening, protecting the temporomandibular joint. At the same time, a radiation protection component is provided, which can shield part of the radiation, thereby reducing the harm of radiation to adjacent organs outside the radiotherapy target area. An atomization component is provided to atomize artificial saliva or topical epidermal growth factor agent and spray it into the patient's oral cavity and deep oropharynx to relieve the patient's dry mouth / mucosal damage. During rehabilitation training, through the setting of the first sensing component and the second sensing component, the oral state of the patient can be known in real time, and then the rehabilitation method can be adjusted in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0031] Figure 1 is the front view of the present invention;

[0032] Figure 2 is the right view of the present invention;

[0033] Figure 3 is the unfolded view of the present invention;

[0034] Figure 4 is the front view of the shielding plate in the present invention;

[0035] Figure 5 is the connection schematic diagram of the airbag assembly and the inflation assembly in the present invention;

[0036] Figure 6 is Figure 5 the partial enlarged view of part A in

[0037] Figure 7 is the position schematic diagram of the training sensing component in the present invention;

[0038] Among them, 1. maxillary bracket; 2. mandibular bracket; 3. hanging block; 4. flexible layer; 5. pressure sensor; 6. atomization component; 7. angle sensor; 8. airbag component; 9. first joint; 10. first socket; 11. shielding plate; 12. stress sensor; 13. inflatable tube; 14. inflation device; 15. second joint; 16. gasket; 17. second socket; 801. bladder; 802. transverse rib; 803. longitudinal rib; 901. fixing block; 902. stepped hole; 903. connecting rod; 904. spring; 905. baffle; 906. slider; 907. sealing strip; 908. air hole. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0041] Referring to Figures 1 to 7 , the present invention discloses a multifunctional oral support device, including: a maxillary bracket 1 located at the maxilla part of the oral cavity, a mandibular bracket 2 located at the mandible part of the oral cavity, the maxillary bracket 1 and the mandibular bracket 2 are hinged to each other, two airbag components 8 are arranged between the maxillary bracket 1 and the mandibular bracket 2, both airbag components 8 are communicated with an inflation device 14, a first sensing component is arranged between the maxillary bracket 1 and / or the mandibular bracket 2 and the upper / lower dental arches, an angle sensor 7 is arranged between the maxillary bracket 1 and the mandibular bracket 2, a radiation protection component is arranged between the maxillary bracket 1 and the mandibular bracket 2, the radiation protection component is located on both sides of the tongue and / or the oral vestibule area, and an atomization component 6 is detachably connected to the mandibular bracket 2;

[0042] The angle sensor 7 transmits the opening angle of the maxillary bracket 1 and the mandibular bracket 2 to the controller, so that the opening angle of the patient's oral cavity is the same during each treatment, ensuring the treatment effect.

[0043] The first sensing component, the inflation device 14, the atomization component 6, and the angle sensor 7 are all electrically connected to the controller;

[0044] The controller is electrically connected to a second sensing component, and the second sensing component is pasted on the head for sensing the movement of facial muscles during biting.

[0045] When manufacturing the maxillary support 1 and the mandibular support 2, first, based on the CBCT image data and oral dynamic scanning (sampling rate 120Hz), a biomechanical model including the movement trajectories of the opening and closing muscle groups is established. The topological structure of the support frame is optimized through finite element analysis to make the stress distribution uniform, and then the medical-grade DLP 3D printing technology is used to achieve the integral forming of the gradient modulus structure, obtaining the maxillary support 1 and the mandibular support 2; the elastic modulus of the maxillary support 1 and the mandibular support 2 is 3 - 5GPa;

[0046] The stress sensor 12 is located in the temporal region, in front of both ears, and in the bilateral masseter muscle regions;

[0047] The second sensing component includes a plurality of stress sensors 12 and a plurality of integrated micro pulse generators. The stress sensors 12 and the integrated micro pulse generators are integrally arranged. The plurality of stress sensors 12 are bonded to both sides of the head and are used to sense the movement of the facial muscles during tooth occlusion.

[0048] The integrated micro pulse generator with an adjustable output frequency of 1 - 100Hz performs transcutaneous electrical nerve stimulation (TENS) on the temporomandibular joint area through the gold nanowire electrode array. In cooperation with the EMG signal detection, an opening and closing feedback training system is established to assist the opening and closing training of the temporomandibular joint after radiotherapy, reduce and prevent the radiation toxicity of the bilateral temporomandibular joints, and improve the joint mobility.

[0049] A hanging block 3 is fixedly connected to the part of the mandibular support 2 close to the lips, and the atomization component 6 is hung on the hanging block 3.

[0050] The controller is selected as the mobile phone APP;

[0051] The device of the present invention can assist the patient to open the mouth during treatment. The setting of the angle sensor 7 can obtain the mouth opening degree of the patient in real time, avoid the discomfort / injury of the patient caused by excessive mouth opening, protect the temporomandibular joint, and at the same time, a radiation protection component is set to shield part of the radiation, thereby reducing the harm of radiation to the adjacent organs outside the radiotherapy target area; an atomization component 6 is set to finely atomize artificial saliva or topical epidermal growth factor agent and spray it into the patient's oral cavity and the deep part of the oropharynx to relieve the patient's dry mouth / mucosal damage; during the rehabilitation training, through the setting of the first sensing component and the second sensing component, the oral state of the patient can be known in real time, and then the rehabilitation method can be adjusted in time.

[0052] In a feasible solution, the airbag assembly 8 includes an airbag body 801. The top surface of the airbag body 801 is fixedly connected to the upper jaw bracket 1, and the bottom surface of the airbag body 801 is fixedly connected to the lower jaw bracket 2. A plurality of limiting structures are fixedly connected inside the airbag body 801. The plurality of limiting structures are arranged at equal intervals from top to bottom. The limiting structure includes a plurality of transverse ribs 802. Both ends of the transverse ribs 802 are fixedly connected to the opposite inner side walls inside the airbag body 801. The plurality of transverse ribs 802 are arranged at intervals in sequence. Both ends of a longitudinal rib 803 are fixedly connected to the other two opposite inner side walls inside the airbag body 801 respectively. The plurality of longitudinal ribs 803 are arranged at intervals in sequence. The transverse ribs 802 are perpendicular to and fixedly connected to the longitudinal ribs 803.

[0053] The arrangement of the transverse ribs 802 and the longitudinal ribs 803 can effectively prevent the airbag body 801 from expanding towards the surroundings, enabling the airbag body 801 to expand in the height direction and play a better supporting role.

[0054] The maximum opening angle of the airbag body 801 is slightly smaller than the normal oral opening angle of a human. At the same time, in combination with the use of the angle sensor 7, the oral opening degree of the patient is obtained in real time to avoid excessive opening between the upper jaw bracket 1 and the lower jaw bracket 2, which may cause discomfort / injury to the patient and protect the temporomandibular joint.

[0055] In a feasible solution, an inflation device 14 is connected to an inflation pipe 13. One end of the inflation pipe 13 away from the inflation device 14 is connected to a first joint 9. The first joint 9 is fixedly connected to the airbag body 801 and is in communication with the inner cavity of the airbag body 801. A sealing gasket 16 is provided between the first joint 9 and the inflation pipe 13;

[0056] The outer side of the inflation pipe 13 is rotatably connected to a second joint 15. The second joint 15 is threadedly connected to the first joint 9.

[0057] In a feasible solution, a fixing block 901 is fixedly connected inside the first joint 9. A stepped hole 902 is coaxially provided on the fixing block 901. The large end of the stepped hole 902 faces the airbag body 801. A slider 906 is slidably connected inside the large end of the stepped hole 902. A plurality of air holes 908 are circumferentially provided on the slider 906. The air holes 908 are close to the outer edge of the slider 906. A sealing strip 907 is circumferentially fixedly connected to one side of the stepped hole 902. The sealing strip 907 is located inside the plurality of air holes 908 and abuts against the stepped surface of the stepped hole 902;

[0058] A connecting rod 903 is coaxially fixedly connected to the slider 906. The diameter of the connecting rod 903 is smaller than the inner diameter of the small end of the stepped hole 902. The connecting rod 903 passes through the small end of the stepped hole 902 and is fixedly connected to a baffle 905. A spring 904 is sleeved on the outer side of the connecting rod 903. One end of the spring 904 abuts against the fixing block 901, and the other end of the spring 904 abuts against the baffle 905;

[0059] With such a setting, the slider 906 fits against the step surface of the stepped hole 902 under the action of the spring 904, preventing the gas in the bladder 801 from escaping through the stepped hole 902; during inflation, the gas presses against the slider 906, causing the slider 906 to separate from the step surface of the stepped hole 902, and then entering the bladder 801 through the air hole 908;

[0060] A trigger assembly is detachably connected between the inflation tube 13 and the first joint 9, and the trigger assembly abuts against the baffle 905;

[0061] The trigger assembly abuts against the baffle 905, keeping the inflation tube 13 and the bladder 801 always connected.

[0062] The trigger assembly is only installed between the inflation tube 13 and the first joint 9 during training; the specific structure of the trigger assembly can be selected, designed and manufactured by those skilled in the art according to their own needs.

[0063] In a feasible solution, the top surface of the maxillary bracket 1 is provided with a first bracket adapted to the maxillary teeth, and the maxillary teeth are located within the first bracket;

[0064] The bottom surface of the mandibular bracket 2 is provided with a second bracket adapted to the mandibular teeth, and the mandibular teeth are located within the second bracket.

[0065] In a feasible solution, a flexible layer 4 is bonded in both the first bracket and the second bracket.

[0066] The elastic modulus of the flexible layer 4 is 0.5 - 1 MPa;

[0067] In a feasible solution, the first sensing assembly includes a plurality of pressure sensors 5 provided at the bottom of the first bracket and the bottom of the second bracket, and the plurality of pressure sensors 5 are arranged corresponding to the force application points when the teeth bite.

[0068] The pressure at the patient's tooth area is obtained in real time through the pressure sensor 5. By the change in pressure and the change in the opening angle of the angle sensor 7, the recovery / damage condition of the patient's oral cavity can be known; In a feasible solution, the radiation protection assembly includes a first socket group and a second socket group. The first socket group includes four first sockets 10, two of the first sockets 10 are opened on the bottom surface of the maxillary bracket 1 and on both sides of the tongue, and the other two first sockets 10 are opened on the top surface of the mandibular bracket 2 and on both sides of the tongue;

[0069] The second socket group includes four second sockets 17, two of the second sockets 17 are fixedly connected to opposite sides of the maxillary bracket 1 and are located in the oral vestibule area, and the other two second sockets 17 are fixedly connected to opposite sides of the mandibular bracket 2 and are located in the oral vestibule area;

[0070] A shielding plate 11 is inserted between two upper and lower corresponding first plug slots 10 and / or two upper and lower corresponding second plug slots 17.

[0071] The shielding plate 11 is made of one or a combination of tungsten / carbide boron composite materials, metallic lead, and barium sulfate materials.

[0072] In a feasible solution, the maxillary bracket 1 and the mandibular bracket 2 are made of porous materials. The maxillary bracket 1 and the mandibular bracket 2 are filled with a phase change material, and the phase change material carries a drug. The phase change material undergoes a phase change under the action of oral temperature and releases the carried drug.

[0073] In a feasible solution, the phase change material includes hydrogel, and the drug includes a composite sustained-release microsphere of recombinant human epidermal growth factor (rhEGF) and chitosan. The drug is released diffusely to parts where it is difficult for drugs to reach, such as the soft palate, both sides of the pharyngeal arch, and the depth of the oropharynx, effectively avoiding the occurrence of retching and nausea in patients with sensitive pharyngeal reflexes and improving the drug efficacy.

[0074] The phase change material can also be a temperature-sensitive polymer microcapsule (UCST micelle).

[0075] A usage method of a multifunctional oral support device, based on the multifunctional oral support device, includes the following steps:

[0076] During treatment:

[0077] Connect the airbag assembly 8 to the inflation device 14. At this time, the maxillary bracket 1 and the mandibular bracket 2 are closed. Send the maxillary bracket 1 and the mandibular bracket 2 into the patient's oral cavity and engage them with the teeth. Control the inflation device 14 to inflate the airbag assembly 8 through the controller until the patient's oral cavity opens to the treatment angle. Remove the inflation device 14, install the radiation protection component and the atomization component 6, and start the treatment.

[0078] During rehabilitation training:

[0079] Connect the airbag assembly 8 to the inflation device 14. At this time, the maxillary bracket 1 and the mandibular bracket 2 are closed. Send the maxillary bracket 1 and the mandibular bracket 2 into the patient's oral cavity and engage them with the teeth. Control the inflation device 14 to inflate / deflate the airbag assembly 8 through the controller to realize the opening and closing functions of the patient's oral cavity. The second sensing component and the first sensing component transmit the patient's training information to the controller.

[0080] Specific usage method:

[0081] During treatment, first connect one end of the inflation tube 13 to the inflation device 14. The second joint 15 at the other end of the inflation tube 13 is threadedly connected to the first joint 9. At the same time, squeeze the connection between the inflation tube 13 and the first joint 9 to compress the gasket 16 to achieve sealing. Then send the closed maxillary bracket 1 and mandibular bracket 2 into the patient's oral cavity. The patient's upper teeth are located in the first bracket, and the patient's lower teeth are located in the second bracket. Flexible layers 4 are bonded in both the first bracket and the second bracket to avoid hard contact between the maxillary bracket 1 and the mandibular bracket 2 and the patient's oral cavity, which may cause discomfort to the patient.

[0082] Control the inflation device 14 to work through the controller. Inflate the bladder 801 through the inflation tube 13. The elongation of the bladder 801 causes the maxillary bracket 1 and the mandibular bracket 2 to open. The opening angle of the maxillary bracket 1 and the mandibular bracket 2 is monitored in real time through the angle sensor 7. The stress state of the patient's oral cavity when the maxillary bracket 1 and the mandibular bracket 2 open is judged by the pressure of the pressure sensor 5 to avoid excessive opening angle of the maxillary bracket 1 and the mandibular bracket 2, which may cause discomfort or injury to the patient's oral cavity.

[0083] After the maxillary bracket 1 and the mandibular bracket 2 are opened to the treatment angle, disconnect the inflation tube 13 from the first joint 9. Selectively insert the shielding plate 11 into the first insertion slot 10 and / or the second insertion slot 17 at the treatment position according to the treatment site. Hang the atomization component 6 on the hanging block 3, and then the treatment can start. At the same time, the phase change material inside the maxillary bracket 1 and the mandibular bracket 2 slowly melts under the action of the oral cavity temperature, and slowly releases the drug into the patient's oral cavity.

[0084] During recovery, connect one end of the inflation tube 13 to the inflation device 14. The second joint 15 at the other end of the inflation tube 13 is threadedly connected to the first joint 9. At the same time, place the trigger component between the first joint 9 and the inflation tube 13. The trigger component abuts against the baffle 905 so that the first joint 9 and the inflation tube 13 are always connected. Attach multiple stress sensors 12 to the preset positions on the patient's head respectively. The stress state of the muscles around the patient's oral cavity and the stress state inside the oral cavity during the recovery of the patient's oral cavity are monitored in real time through the stress sensors 12 and the pressure sensor 5, and the data is transmitted to the controller. Adjust the recovery method according to the data recorded by the controller to improve the recovery speed of the patient's oral cavity.

[0085] The present invention belongs to the fields of oral protection technology and rehabilitation and health care, and particularly relates to a multifunctional oral support device and its clinical application method used in radiotherapy and the late stage of radiotherapy for head and neck cancer patients. The device of the present invention adopts a modular design and has the following advantages:

[0086] 1. When a patient with temporomandibular joint dysfunction undergoes radiotoxic therapy and temporomandibular joint rehabilitation functional training, to assist the patient in opening the mouth, the angle sensor is set to obtain the patient's mouth opening degree in real time and is equipped with a protection module to prevent damage to the temporomandibular joint due to the mouth opening being greater than the physiological movement range;

[0087] 2. Set up a radiation protection component related to head and neck radiotherapy. This component can shield part of the radiotherapy ray radiation and reduce the radiotoxicity of radiotherapy rays to normal organs outside the radiation target area;

[0088] 3. Set up an atomization component. This component can finely atomize artificial saliva and topical epidermal growth factor agent or topical epidermal growth factor agent and spray it into the patient's oral cavity and the deep part of the oropharynx, fully covering the mucous membranes of all regions of the oral cavity to the posterior pharyngeal wall area, and relieving the patient's dry mouth symptoms and radioactive oral mucous membrane erosion symptoms;

[0089] 4. During the recovery training, through the setting of the first sensing component and the second sensing component, the state of the patient's temporomandibular joint and oral cavity can be obtained in real time, and then the treatment and rehabilitation plan can be adjusted in a timely manner, providing a quantitative basis for the rehabilitation training of patients with temporomandibular joint dysfunction. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0090] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A multi-functional oral support device, characterized in that, Comprising: An upper jaw bracket (1), located at the maxilla part of the oral cavity, and a lower jaw bracket (2), located at the mandible part of the oral cavity. The upper jaw bracket (1) is hinged to the lower jaw bracket (2). Two airbag assemblies (8) are arranged between the upper jaw bracket (1) and the lower jaw bracket (2). Both of the two airbag assemblies (8) are communicated with an inflation device (14). A first sensing assembly is arranged between the upper jaw bracket (1) and / or the lower jaw bracket (2) and the upper / lower dental arches. An angle sensor (7) is arranged between the upper jaw bracket (1) and the lower jaw bracket (2). A radiation protection assembly is arranged between the upper jaw bracket (1) and the lower jaw bracket (2), and the radiation protection assembly is located on both sides of the tongue and / or the oral vestibule area. A atomization assembly (6) is detachably connected to the lower jaw bracket (2); The first sensing assembly, the inflation device (14), the atomization assembly (6), and the angle sensor (7) are all electrically connected to a controller; The controller is electrically connected to a second sensing assembly, and the second sensing assembly is adhered to the head for sensing the movement of facial muscles during occlusion.

2. The multifunctional oral support device according to claim 1, wherein: The airbag assembly (8) includes a bladder (801). The top surface of the bladder (801) is fixedly connected to the upper jaw bracket (1), and the bottom surface of the bladder (801) is fixedly connected to the lower jaw bracket (2). Multiple groups of limiting structures are fixedly connected inside the bladder (801). The multiple groups of limiting structures are arranged at equal intervals from top to bottom. The limiting structure includes multiple horizontal ribs (802). Both ends of the horizontal ribs (802) are respectively fixedly connected to two opposite inner side walls inside the bladder (801). The multiple horizontal ribs (802) are arranged at intervals in sequence. Both ends of a longitudinal rib (803) are respectively fixedly connected to two other opposite inner side walls inside the bladder (801). The multiple longitudinal ribs (803) are arranged at intervals in sequence. The horizontal ribs (802) are perpendicular to and fixedly connected to the longitudinal ribs (803).

3. The multifunctional oral support device according to claim 2, wherein: The inflation device (14) is communicated with an inflation pipe (13). One end of the inflation pipe (13) far away from the inflation device (14) is communicated with a first joint (9). The first joint (9) is fixedly connected to the bladder (801) and communicated with the inner cavity of the bladder (801). A sealing gasket (16) is arranged between the first joint (9) and the inflation pipe (13); A second joint (15) is rotatably connected to the outside of the inflation pipe (13), and the second joint (15) is threadedly connected to the first joint (9).

4. The multifunctional oral support device according to claim 3, characterized in that: A fixing block (901) is fixedly connected inside the first joint (9). A stepped hole (902) is coaxially formed in the fixing block (901). The large end of the stepped hole (902) faces the bladder (801). A slider (906) is slidably connected inside the large end of the stepped hole (902). A plurality of air holes (908) are circumferentially formed in the slider (906). The air holes (908) are close to the outer edge of the slider (906). A sealing strip (907) is circumferentially fixedly connected to one side of the stepped hole (902). The sealing strip (907) is located inside the plurality of air holes (908). The sealing strip (907) abuts against the stepped surface of the stepped hole (902). A connecting rod (903) is coaxially fixedly connected to the slider (906). The diameter of the connecting rod (903) is smaller than the inner diameter of the small end of the stepped hole (902). The connecting rod (903) passes through the small end of the stepped hole (902) and is fixedly connected with a baffle (905). A spring (904) is sleeved outside the connecting rod (903). One end of the spring (904) abuts against the fixing block (901), and the other end of the spring (904) abuts against the baffle (905). A trigger assembly is detachably connected between the inflation tube (13) and the first joint (9). The trigger assembly abuts against the baffle (905).

5. A multifunctional oral support device according to claim 1, characterized in that: A first bracket is formed on the top surface of the maxillary bracket (1) and is adapted to the maxillary teeth. The maxillary teeth are located inside the first bracket. A second bracket is formed on the bottom surface of the mandibular bracket (2) and is adapted to the mandibular teeth. The mandibular teeth are located inside the second bracket.

6. The multifunctional oral support device according to claim 5, wherein: Flexible layers (4) are bonded inside both the first bracket and the second bracket.

7. A multi-functional oral support device according to claim 5, characterized in that: The first sensing assembly includes a plurality of pressure sensors (5) arranged at the bottom of the first bracket and the bottom of the second bracket. The plurality of pressure sensors (5) are arranged corresponding to the force application points when the teeth bite.

8. A multifunctional oral support device according to claim 1, characterized in that: The radiation protection assembly includes a first socket group and a second socket group. The first socket group includes four first sockets (10). Two of the first sockets (10) are formed on the bottom surface of the maxillary bracket (1) and are located on both sides of the tongue. The other two first sockets (10) are formed on the top surface of the mandibular bracket (2) and are located on both sides of the tongue. The second socket group includes four second sockets (17). Two of the second sockets (17) are fixedly connected to opposite sides of the maxillary bracket (1) and are located in the oral vestibule area. The other two second sockets (17) are fixedly connected to opposite sides of the mandibular bracket (2) and are located in the oral vestibule area. A shielding plate (11) is inserted between two corresponding first sockets (10) and / or between two corresponding second sockets (17) up and down.

9. A multifunctional oral support device according to claim 1, wherein: The maxillary bracket (1) and the mandibular bracket (2) are made of porous materials. Phase change materials are filled inside the maxillary bracket (1) and the mandibular bracket (2). The phase change materials carry drugs. The phase change materials undergo a phase change under the action of oral temperature and release the carried drugs.

10. A method of using a multi-functional oral support device, based on the multi-functional oral support device according to any one of claims 1-9, characterized in that, It includes the following steps: During treatment: Connect the airbag assembly (8) with the inflation device (14). At this time, the upper jaw bracket (1) and the lower jaw bracket (2) are closed. Send the upper jaw bracket (1) and the lower jaw bracket (2) into the patient's oral cavity and engage with the teeth. Control the inflation device (14) to inflate the airbag assembly (8) through the controller until the patient's oral cavity opens to the treatment angle. Remove the inflation device (14), install the radiation protection assembly and the atomization assembly (6), and start the treatment; During rehabilitation training: Connect the airbag assembly (8) with the inflation device (14). At this time, the upper jaw bracket (1) and the lower jaw bracket (2) are closed. Send the upper jaw bracket (1) and the lower jaw bracket (2) into the patient's oral cavity and engage with the teeth. Control the inflation device (14) to inflate / deflate the airbag assembly (8) through the controller to realize the opening and closing of the patient's oral cavity. The second sensing component and the first sensing component transmit the patient's training information to the controller.

Citation Information

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