Three-dimensional adjustable mandibular protraction appliance device with 3S-shaped curve
By designing an adjustable mandibular forward removable device device including "3S" curved steel wire and retention module, the lack of universality of the jaw positioning problem of existing removable devices is solved, and effective adjustment of mandibular position and improved patient comfort are achieved.
Patent Information
- Application Number
- CN202421384686.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-06-18
AI Technical Summary
When existing instruments treat obstructive sleep apnea hypoventilation syndrome, the mandibular positioning problem lacks universality, resulting in errors in the horizontal and vertical occlusal relationships, causing temporomandibular joint pain and maxillofacial muscle aches.
An adjustable mandibular forward-release device including "3S" curved steel wire and retention module is designed. Through the three-dimensional adjustment function of the "3S" curved steel wire and the stability of the retention module, effective adjustment of the mandibular sagittal and vertical positions is achieved.
This device can take into account the treatment effect and patient comfort in multiple repeated adjustments, maintain the mobility of the temporomandibular joint and oromaxillofacial muscle groups, avoid the problem of difficulty in placement of the corrector caused by different positioning tracts, and has better physiological adaptability.
Smart Images
Figure CN223026236U_ABST
Abstract
Description
Technical Field
[0001] The utility model patent relates to the field of medical devices, and particularly relates to an adjustable mandibular protrusion orthodontic appliance device. It is a device that can adjust the sagittal and vertical positions of the mandible when the mandible of a patient with obstructive sleep apnea syndrome is in the protruded position. The overall structure consists of two parts: a "3S" curved device and a retention block device. Background Art
[0002] Obstructive sleep apnea syndrome (OSAHS) refers to apnea and hypoventilation caused by the collapse and obstruction of the upper airway during sleep, accompanied by snoring, sleep structure disorders, frequent drops in blood oxygen saturation, daytime sleepiness and other symptoms. If the apnea and hypopnea occur more than 30 times during each night's sleep (sleeping for more than 7 hours), or the apnea-hypopnea index ≥ 5 times / hour, it can be diagnosed as OSAHS. Among them, apnea means that the airflow through the mouth and nose stops ≥ 10 seconds during the sleep process. Hypopnea (insufficient ventilation) means that the intensity of the respiratory airflow during the sleep process is reduced by more than 50% compared with the basic level, and is accompanied by a decrease in arterial oxygen saturation (SaO2) ≥ 4%.
[0003] During the sleep of OSAHS patients, pathological phenomena such as decreased upper airway compliance, upper airway stenosis and apnea often occur. These conditions will repeatedly induce hypoxemia and hypercapnia, thus affecting multiple systems of the patient. The most common clinical manifestations include snoring, excessive daytime sleepiness, abnormal breathing sounds at night, wheezing and apnea.
[0004] Obstructive sleep apnea hypopnea syndrome (OSAHS) has the following treatment methods: (1) Medical treatment: including etiological treatment and drug treatment. Etiological treatment mainly aims at the causes of OSAHS, such as weight control, improvement of living habits, etc. Drug treatment includes the use of respiratory-promoting drugs or other related drugs. (2) Surgical treatment: Surgery is performed on OSAHS patients due to abnormal oro-craniofacial anatomical structures, aiming to relieve the upper airway obstruction and improve breathing. (3) Non-invasive positive airway pressure ventilation treatment: The preferred and initial treatment method for adult OSAHS patients, especially continuous positive airway pressure (CPAP) treatment. This treatment provides patients with continuous positive pressure airflow to keep the upper airway open. (4) Oral appliance treatment: For specific patients, the use of oral appliances can help adjust the positions of the mandible and tongue, thus improving breathing. (5) Behavioral treatment and lifestyle adjustment: including weight loss, smoking cessation, alcohol abstinence, sleeping on the side, etc. These measures help relieve the symptoms of OSAHS. Among them, continuous positive airway pressure (CPAP) through the nose is the most effective method for treating OSAHS, but some patients discontinue treatment due to intolerance to pressure, high cost, and inconvenience in carrying, resulting in poor treatment compliance. Surgical treatment has high risks and recurrence rates and is usually only considered when clear surgical indications are available or in emergency situations. Oral appliances (OA), as a non-surgical treatment method, are widely used in clinical practice due to their non-invasive nature, affordable cost, convenience, and good patient tolerance.
[0005] In current clinical research, there is a lack of universal research on the mandibular positioning problem of oral appliances. In clinical practice, dentists mainly rely on personal experience to determine the appropriate degree of mandibular advancement. This method will largely lead to inevitable errors in the horizontal and vertical occlusal relationships of the fabricated oral appliances, causing patients to experience pain and discomfort in the temporomandibular joint, soreness in the maxillofacial muscles, and even temporomandibular joint disorders during the long-term wearing of oral appliances every night. Summary of the Invention
[0006] The purpose of this utility model patent is to fabricate a mandibular advancement oral appliance device that is easy to adjust the mandibular position relationship in the sagittal and vertical directions during the treatment of obstructive sleep apnea hypopnea syndrome, which is composed of two parts: a 3S-shaped steel wire and a retention module, combined with a transparent pressure-formed dental appliance.
[0007] The first device is bent from a 0.0215 * 0.028 clinical orthodontic stainless steel wire, which has sufficient hardness and stiffness to ensure the stability of guiding the mandible forward. This curve contains 3 "S" curves and two "round triangle" curves. The "3S" curves are the stress adjustment parts of the whole curve. The first "S" curve segment near the front is 5 mm high and 10 mm wide, which is used to adjust the vertical distance in the front part of the molar area. It is required that the lower edge of this "S" curve segment should be parallel to the functional occlusal plane of the dental appliance; the second "S" curve segment in the middle is 10 mm high and 5 mm wide, which is used for the physiological amplitude adjustment of the sagittal position of the upper and lower jaws. It is required that each straight part of this "S" curve segment is perpendicular to the occlusal plane; the "S" curve near the back is 5 mm high and 10 mm wide, which is used to adjust the vertical distance in the back part of the molar area. It is required that the upper edge of this "S" curve segment should be parallel to the functional occlusal plane of the dental appliance. The "round triangle" curves are the retention parts of the whole curve. They are equilateral triangles with side lengths of 3 mm and rounded corners. The two "round triangle" curves are located on the distal surface of the maxillary canine and the mesial surface of the mandibular second permanent molar of the dental appliance respectively. The two are connected through the extended parts at the ends of the "S" curves. The overall structure has sufficient hardness to keep the mandible in the ideal mandibular protrusion position. At the same time, the "S" curve structure has appropriate elasticity to ensure that the patient's mandible generates appropriate physiological movement in three dimensions, and OSAHS is treated within its range.
[0008] The second device is a retention module, which is a cuboid-like structure with a length of 7 mm, a width of 5 mm, and a height of 3 mm and a smooth surface. It is made of self-curing resin. The polymerization shrinkage and temperature shrinkage changes of the retention module are small, and there are no obvious changes in water absorption expansion and temperature expansion; in terms of toughness, it has good resistance to transverse deflection, is light in specific gravity and dense, has good color stability, and is not easy to change color and fade; it has good chemical corrosion resistance and is insoluble in saliva and solutions of acids, alkalis and salts; it has good tissue tolerance, is non-toxic and non-irritating, and is suitable for oral tissues.
[0009] Advantages of the utility model
[0010] The present utility model relates to an adjustable mandibular advancement device. First, compared with the previous snore stopper that fixes the mandible at the mandibular protrusion position obtained by the doctor's experience, the present utility model breakthroughly proposes that when making a mandibular advancement oral appliance to treat obstructive sleep apnea hypopnea syndrome (OSAHS), the "3S" curved wire structure in the appliance has the characteristics of both strong rigidity and moderate elasticity to maintain effective adjustment in the sagittal, vertical, and transverse directions within the physiological mobility range of the mandible. It can be adjusted repeatedly for many times to balance the treatment effect and the comfort of the patient. This enables the temporomandibular joint and the oral and maxillofacial muscle groups of the wearer to maintain a certain degree of mobility. Second, due to the anatomical structural characteristics of different seating paths of the upper and lower dental arches, in the past, some patients would have difficulty in fitting the intraoral fixed snore stopper made, and it was difficult for doctors to make a fixed snore stopper that could meet the different seating paths of the upper and lower jaws and was convenient for the patient to remove and wear. The present utility model can well avoid the above problems and has better physiological adaptability by virtue of the characteristics of the "3S" curved wire structure that is convenient for three-dimensional adjustment and maintains effective adjustment within the physiological mobility range of the mandible. Third, the present utility model reserves an occlusion relationship "observation window" in the anterior tooth area of the appliance to observe the changes in the upper and lower jaw relationships after the retainer is inserted, so as to facilitate timely adjustment of the upper and lower jaw position relationships and increase the wearing comfort of the patient. In addition, the structure of the present utility model is simple, has good use effects, and is easy to promote and use. Brief Description of the Drawings
[0011] Figure 1 It is a general schematic diagram of the "3S" curved adjustable mandibular advancement appliance device of the utility model. In the figure: 1 - "3S" curved device; 2 - retention block device; 3 - occlusion relationship observation window; 4 - upper jaw transparent pressure membrane dental appliance; 5 - lower jaw transparent pressure membrane dental appliance;
[0012] Figure 2 It is a schematic diagram of the "3S" curved device of the utility model; Detailed Embodiment
[0013] The following further elaborates on the specific implementation solutions proposed in the present utility model in combination with the drawings and embodiments. The provided embodiments are intended to explain the solutions herein, rather than limiting the scope covered herein. According to the embodiments in the patent of the present utility model, all other implementation solutions made by any person skilled in the art without creative work shall be included within the protection scope of the patent of the present utility model.
[0014] Please refer to the attached Figure 1 , the present utility model provides the following technical solutions:
[0015] This utility model patent relates to the field of medical devices, and particularly to an adjustable mandibular protrusion orthodontic appliance device. It is a device that can adjust the sagittal and vertical positions of the mandible when the patient with obstructive sleep apnea syndrome protrudes the mandible forward, and consists of two parts: a "3S" curved device and a retention block device.
[0016] The first device is bent from a 0.0215*0.028 clinical stainless steel orthodontic wire, which has sufficient hardness and stiffness to ensure the stability of guiding the mandible forward. This curve contains 3 "S" curves and two "round triangle" curves. The "3S" curve is the stress adjustment part of the whole curve. The first "S" curve segment near the front is 5 mm high and 10 mm wide, which is used to adjust the vertical distance in the front part of the molar area. It is required that the lower edge of this "S" curve segment should be parallel to the functional occlusal plane of the dental appliance; the second "S" curve segment in the middle is 10 mm high and 5 mm wide, which is used for the physiological amplitude adjustment of the sagittal position of the upper and lower jaws. It is required that each straight part of this "S" curve segment is perpendicular to the occlusal plane; the first "S" curve near the rear is 5 mm high and 10 mm wide, which is used to adjust the vertical distance behind the molar area. It is required that the upper edge of this "S" curve segment should be parallel to the functional occlusal plane of the dental appliance. The "round triangle" curve is the retention part of the whole curve. It is an equilateral triangle with a side length of 3 mm and rounded corners. The two "round triangle" curves are located on the distal surface of the maxillary canine and the mesial surface of the mandibular second permanent molar of the dental appliance respectively. The two are connected by the extended part at the end of the "S" curve. The overall structure has sufficient hardness to keep the mandible in the ideal mandibular protrusion position. At the same time, the "S" curve structure has appropriate elasticity to ensure that the patient's mandible generates appropriate mandibular physiological movement in three dimensions, and OSAHS is treated within its range.
[0017] The second device is a retention module, which is a cuboid-like structure with a length of 7 mm, a width of 5 mm, and a height of 3 mm and a smooth surface. It is made of self-curing resin. The polymerization shrinkage and temperature shrinkage of the retention module change little, and the water absorption expansion and temperature expansion have no obvious changes; in terms of toughness, it has good resistance to transverse deflection, a light and dense specific gravity, good color stability, and is not easy to change color and fade; it has good chemical corrosion resistance and is insoluble in saliva and solutions of acids, alkalis, and salts; it has good tissue tolerance, is non-toxic and non-irritating, and is suitable for oral tissues.
[0018] Upper and lower jaw impression: After taking the plaster model of the patient's oral cavity, use an impression machine to make upper and lower jaw dentures according to the patient's dentition. After wearing them in the oral cavity, use silicone rubber to obtain the occlusal relationship between the upper and lower jaws when the patient protrudes the mandible forward, obtain the displacement of the mandible protrusion, and obtain the data of the three-dimensional jaw relationship. Use the occlusal relationship to directly mount the articulator to complete the jaw position transfer, bend the "3S" curved wire, make corresponding adjustments using the data obtained from the patient's oral cavity, and use self-curing resin to make the retention module to complete the production of the final snore stopper.
Claims
1. An adjustable mandibular advancement appliance, characterized in that The adjustable mandibular advancement appliance device comprises a "3S" curved device (1), a retaining block device (2), an occlusal relationship observation window (3), an upper transparent laminated brace (4), and a lower transparent laminated brace (5); The outer front part of the maxillary transparent laminated brace (4) and the outer rear part of the mandibular transparent laminated brace (5) are connected by a "3S" curved device (1), and the connection is fixed by a retaining block device (2); The "3S" curved device (1) comprises three "S" curves and two "circular triangle" curves, wherein the "3S" curved device (1) has sufficient hardness and rigidity and is the stress adjustment part of the orthodontic device; the lower edge of the first "S" curved section at the front of the "3S" curved device (1) should be parallel to the functional occlusal plane of the braces, and the adjustment of this section can adjust the vertical distance of the front of the molar area of the entire orthodontic device; the second "S" curved section at the middle of the "3S" curved device (1) should be parallel to the functional occlusal plane of the braces, and the lower edge of the first "S" curved section at the front of the "3S" curved device (1) should be parallel to the functional occlusal plane of the braces, and the adjustment of this section can adjust the vertical distance of the front of the molar area of the entire orthodontic device; the second " Each straight part of the "S"-shaped curved section is perpendicular to the occlusal plane, and adjusting this section can adjust the sagittal position between the maxillary transparent film brace (4) and the mandibular transparent film brace (5); the upper edge of the third "S"-shaped curved section at the rear of the "3S" curved device (1) should be parallel to the functional occlusal plane of the brace, and adjusting this section can adjust the vertical distance of the rear of the molar area of the entire orthodontic appliance; the "circular triangle" in the "3S" curved device (1) is an equilateral triangle with arc-shaped corners.
2. The adjustable mandibular advancement appliance device according to claim 1, characterized in that: The retaining block device (2) is a rectangular parallelepiped structure with a length of 7 mm, a width of 5 mm and a height of 3 mm and a smooth surface, and is made of self-curing resin.