48 results about "Masticatory muscle" patented technology

A device used in conjunction with fixation hardware to provide a two-stage process to address the competing needs of immobilization and re-establishment of normal stress-strain trajectories in grafted bone. A method of determining a patient-specific stress / strain pattern that utilizes a model based on 3D CT data of the relevant structures and cross-sectional data of the three major chewing muscles. The forces on each of the chewing muscles are determined based on the model using predetermined bite forces such that a stiffness of cortical bone in the patient's mandible is determined. Based on the stiffness data, suitable implantation hardware can be designed for the patient by adjusting external topological and internal porous geometries that reduce the stiffness of biocompatible metals to thereby restore normal bite forces of the patient.

A mastication monitoring device 1 is provided with a probe 2 which is attached to a cheek in order to detect the concentration of reduced hemoglobin in the masticatory muscles. A photodetector 22 of the probe 2 detects light scattered in the masticatory muscles and delivers a signal of the amount of light received to a signal processing unit 3. The signal processing unit 3 computes the reduced hemoglobin concentrations (time-series changes) from the signals of the amount of light received, and further computes outputs S (time-series changes) corresponding to the time-series changes in the reduced hemoglobin concentrations. A mastication iteration counting unit 41 detects peaks in periodical changes of Sd which is the difference between the output S and the moving average value Sma of the output S and counts the peaks in periodical changes of Sd as the mastication iterations.

To provide a tongue muscle-strengthening device which can prevent or recover a poor posture that is attributed to no development of lingual adhesion in the mandible to the skull due to the decreased function of tongue muscles, stress-induced disorder that is attributed to the hyperfunction of the masticatory muscle group and tongue muscles in the cerebral cortex motor area, as well as the dysfunction and an aesthetic impairment of the mouth and which can actualize lingual adhesion. The tongue muscle-strengthening device in the invention of this application is composed of the part of maxillary teeth contact that is in contact with the maxillary teeth, the parts of dorsum of tongue and palate contact that are respectively in contact with the dorsum of tongue and palate, as well as the part of connection that connects the part of maxillary teeth contact with the parts of dorsum of tongue and palate contact. The user brings the part of palate contact into contact with the palate by inserting the part of maxillary teeth contact into the maxillary teeth, by bringing the part of dorsum of tongue contact into contact with the dorsum of tongue, by bringing the lingual apex into contact with the part of lingual apex contact, and by elevating the dorsum of tongue, and maintains the condition for a while. The elasticity of the part of connection places a sustained and strong burden on tongue muscles and strengthens tongue muscles. Furthermore, the tongue muscle-strengthening device in the invention of this application has good usability because it is an intraoral device.

A composite essential oil for modifying the face shape relates to cosmetics and medical products, in particular to a composite essential oil for modifying the face shape. The composite essential oil comprises the following raw materials in parts by weight: 15-40 parts of cinnamon essential oil, 10-35 parts of basil essential oil, 25-65 parts of cypress essential oil, 20-45 parts of grapefruit essential oil and 1000 parts of carrier oil. The composite essential oil for modifying the face shape can be prepared by the steps of mixing and stirring the raw materials according to the proportion in the formula and then standing. The composite essential oil has the advantages of being capable of rapidly thoroughly eliminating thicker masticatory muscles on the face, removing surplus fat and improving the face contour so as to achieve the purposes of thinning the face and beautifying the skin.

The invention discloses an integral-type initiative oral-cavity mouth gag, which comprises horseshoe-shaped upper jaw plate and a lower jaw plate which conform to an upper dental arch and a lower dental arch, wherein a torsion spring is arranged between the upper and the lower jaw plates, when the spring is free from additional pinching force, the tension of the spring facilitates the formation of an angle between the upper and the lower jaw plates, and the upper and the lower jaw plates are connected with each other through a rear end connection steel wire; when in wearing, the upper and the lower jaw plates are closed, so the upper and the lower jaw plates are arranged between occlusal surfaces of upper teeth and lower teeth, and after the upper and the lower jaw plates are released, the spring is rebounded, so a continuous opening force can be supplied. The integral-type initiative oral cavity mouth gap has the advantages that: the size is small, the wearing is convenient, the operation is simple, the wearing is reflected by clinical test patient to be more comfortable that of a passive mouth gag, when wearing the mouth gag, the lower jaw can make the mouth closing movement, so the function of masticatory muscles can be effectively exercised, and the mouth gag can be used for the computer aid design of the jaw face part individualized repair body.

The invention provides an eating habit monitoring method and system. The eating habit monitoring method comprises the steps that when a user eats something, a masticatory muscle motion signal and a deglutition muscle motion signal of the user are acquired through a masticatory muscle electric transducer and a deglutition muscle electric transducer respectively; and whether the current eating action of the user is correct is determined according to the masticatory muscle motion signal and the deglutition muscle motion signal. In this way, the determination process of the eating action of the user is not influenced by other actions, so that the anti-interference performance is high, and the accuracy and reliability of a monitoring result are improved.

The invention discloses medical equipment, particularly discloses a mouth opening exerciser, and provides a mouth opening exerciser which is convenient for a patient to take exercise by self and is also convenient for the patient to take exercise with the help of other people. The mouth opening exerciser comprises two arc-shaped tooth cushions and two holding rods, wherein the two holding rods are hinged through a rotating shaft to form a lever structure; and the lever structure is partitioned into two ends by taking a rotating shaft as a partition point, wherein one end of the lever structure is a holding section, and the other end of the lever structure is provided with the arc-shaped tooth cushions which are respectively arranged on the two holding rods. Due to the adoption of the lever structure, operation can be realized by virtue of the holding section; the two arc-shaped tooth cushions are separated or combined, so that the temporomandibular joint and masticatory muscles of the patient can be exercised; the holding section can be operated by the patient or other people, so that the patient can be effectively and actively or passively exercised.

The invention discloses a feeding behavior analysis and detection method based on chewing and swallowing acts and cardiac electrical activity. By adopting two wearable myoelectric activity sensors, a sound sensor and two electrocardio sensors, one myoelectric activity sensor is arranged on the surface of skin of the masticatory muscle in from of the ear of the head, the other myoelectric activity sensor is arranged at the surface of the skin of a thyro-mylohyoid-muscle part of the neck, the myoelectric activity sensors are connected to an earphone type connecting structure, the sound sensor and one electrocardio sensor are arranged at the suprasternal fossa part of the neck, the other electrocardio sensor is arranged at the rear side of the neck, and the sound sensor and the electrocardio sensors are all connected to the necklace type connecting structure; according to the detected myoelectric signals combined with detected sound signals and electrocardio signals, the feeding behavior mode is analyzed, recognized and recorded, the feeding food type, the feeding behavior and the recorded feeding interval and time can be analyzed and recognized, the detection result is sent to a mobile phone of a user, the result is displayed through the mobile phone of the user, and suggestions are formed.

The invention relates to a functional retainer, in particular to an occlusion functional retainer. The functional retainer comprises an upper jaw part and a lower jaw part, wherein the upper jaw part comprises arrow clasps fixed on molars on left and right sides, single-wall clasps fixed on bicuspids on left and right sides, and occlusal pads for connecting the arrow clasps with the single-wall clasps; the lower jaw part comprises interproximal hooks fixed on incisor teeth and canine teeth, arrow clasps fixed on canine teeth on left and right sides, and occlusal pads for connecting the arrow clasps with the interproximal hooks; the upper jaw part and the lower jaw part further comprise guide bevels respectively; the guide bevels are positioned on inner sides of the canine teeth; angles between the guide bevels and occlusal surfaces are 40-60 degrees; an inclination direction is opposite to a deviation mandibular direction. As proved by practice, the occlusion functional retainer provided by the invention can establish new occlusal balance of masticatory muscles rapidly, and has very good clinical application effect and high popularization value.

The invention discloses a system and method for surface electromyogram signal feature recognition of bruxism. Electromyographic signals on the surface of masticatory muscle skin is obtained quickly and stably through a surface myoelectricity electrode, the obtained signals are subjected to preliminary amplification and filtering through a designed signal processing module, the signals are sent to an MCU, an ADC which the MCU is provided with is used to perform analog-digital conversion and software filtering processing on obtained analog signals, the processed signals are subjected to digital filtering processing and algorithm analysis to identify whether masticatory muscles perform activity of grinding one's teeth and displaying surface myoelectricity waveform of the masticatory muscles, and thus values of surface electromyogram signals and waveform information are obtained. The system has functions of real-time display of masticatory muscle surface electromyogram signals and real-time waveform monitoring, surface electromyogram signal data storage and surface electromyogram signal identification, bruxism patients can be monitored precisely and stably, and feature recognition on bruxism electromyographic signals is performed.

The invention discloses a splitting active oral cavity mouth gag, which comprises an upper jaw plate, a lower jaw plate, upper and lower L-shaped force transfer rods, and an elastic restoring member, wherein the upper and lower L-shaped force transfer rods are fixedly connected in the middle of the upper jaw plate and the lower jaw plate, and the elastic restoring member is arranged between the upper and ; when in use, the upper jaw plate and the lower jaw plate are respectively worn to stabilize and are positioned on an upper dental arch maxillofacial and a lower dental arch maxillofacial; an elasticity rubber ring is hung on a small hook of the upper and lower force transfer rods; the amount of the rubber rings to be hung is adjusted according to the order of severity of the limited individual opening; and the shrinkage force that the rubber ring is extended achieves the function of continuously opening through the force transfer rods. The splitting active oral cavity mouth-opener has the advantages of small volume, convenient wearing and simple operation, can make a mouth-close movement of the mandible when worn, and can enable the function of the masticatory muscles to acquire effective practices; the size of the mouth opening force can be adjusted through increasing and decreasing the rubber ring; the engagement surface of the jaw plates are matched with the occlusal surface of patients and encircled by a buccal fin so as to acquire a stable fixed position. The splitting active oral cavity mouth gag can be used for computer assisting design of individual repairing body of the maxillofacial part.

A reliable technology for determining the masticatory side of the user based on the surface myoelectric potential of masticatory muscles is provided. First and second electromyographic waveforms respectively originating from left and right muscles related to masticatory actions of a user are acquired; a coefficient of correlation between pieces of information respectively extracted from the first and the second electromyographic waveforms is calculated as a first feature value; a second feature value is calculated from a power spectrum obtained by performing frequency analysis on the first electromyographic waveform; a third feature value is calculated from a power spectrum obtained by performing frequency analysis on the second electromyographic waveform; a learning model is generated by associating the first, second, and third feature values with a plurality of labels for specifying a masticatory side of the user; and the masticatory side of the user is determined based on first, second, and third feature values calculated from a newly acquired electromyographic waveform, with reference to the learning model.

The present invention discloses a child cerebral palsy feeding and voice basic rehabilitation training device. The child cerebral palsy feeding and voice basic rehabilitation training device comprisesa base plate, a pressing device for deep breathing training is fixed on the base plate, a backup plate is fixed at a top part of the pressing device, adjusting devices are fixed on two sides of the backup plate, and besides, oral control devices for masticatory muscle training and an auxiliary device for expiration training are respectively fixed on outer sides of the two adjusting devices. The pressing device is used to realize pressure applying of the chest of a child patient with cerebral palsy, so that the child exhales gas out, the deep breathing training of the child is effectively carried out, the oral control devices are used for masticatory muscle exercise, the auxiliary device is used for rapid expiration training, requirements for feeding and language pronunciation training ofthe child parent are met, the effective rehabilitation training is carried out, medical staff only need to operate and control the device for auxiliary training, so that the working intensity of the medical staff is greatly reduced.

The invention relates to the technical field of gynecology and obstetrics, in particular to an auxiliary device for an obstetrics and gynecology delivery surgery to solve the problem of oral muscle injury of a pregnant woman caused by excessive bite force during childbirth. The auxiliary device comprises a hand-held portion, the top end of the hand-held portion is connected with a brace, and the front and the rear of the brace are respectively provided with an occlusion area. The end of the brace is provided with a jacking ball, and the surface of the jacking ball is provided with a trapezoidal fixed block, a deformation shrinking balloon is arranged at the corresponding occlusion area in the inner cavity of the brace and communicated with a tube A arranged in the inner cavity of the brace. The auxiliary device has the advantages of delivering a nutrient solution, protecting the teeth and the masticatory muscles of the pregnant woman from injury, can reduce the effect of the excessivebite of the pregnant woman, and is convenient to use and simple in structure.

The invention discloses a multifunctional oral cavity trainer. According to the trainer, an umbrella-shaped body is connected to each of two heads of a handle, one of the umbrella-shaped bodies is composed of an upside-down umbrella cover and an umbrella handle, and the other umbrella-shaped body is composed of an upside-down umbrella cover, an umbrella handle and a sharp-tongue-shaped body extending from the inner umbrella circle center. Shapes of the umbrella covers and the sharp-tongue-shaped body, both made of elastic materials such as soft resin, of the umbrella-shaped bodies can be changed during operation of the umbrella covers and the sharp-tongue-shaped body, so that opening and closing of mouths, occlusion of upper and lower jaws and tongue turning in up, down, left and right directions are guided, swallowing reflex is stimulated, and lip closing capability, palate muscle groups, masticatory muscle groups, tongue muscle groups and pharynx muscle groups are trained; by the trainer, efficiency of existing swallowing rehabilitation training is improved through synchronous and coordinated exercises of muscle groups involved during ingesting, chewing and swallowing. The multifunctional oral cavity trainer has the advantages of simplicity in operation, safety in use and easiness in popularization for clinical medicine and family care.

The present invention concerns a device for monitoring the electrophysiological activity of a subject, in particular for diagnosis or monitoring of epilepsy, comprising: a means for measuring brain electrical activity; a means for measuring the electrical activity of the masticatory muscles; an acquisition means configured to acquire, in a synchronised manner, the signals measured by the means formeasuring brain electrical activity and by the means for measuring the electrical activity of the masticatory muscles; a means for processing the signals; and a means for transmitting the electricalsignals acquired by the acquisition means to said means for processing the signals; said means for processing the signals being configured to detect, from among the signals measured by the means for measuring brain electrical activity, the signals measured by the means for measuring the electrical activity of the masticatory muscles.

The invention discloses a chewing robot simulating a masticatory muscle group and a temporal-mandibular joint and belongs to the technical field of bionic robots. The chewing robot comprises a main body support, an upper jaw structure, a lower jaw structure, six drive branch chains and a pneumatic control system, wherein the drive branch chains are of bilateral symmetry and are distributed in parallel. The main body support serves as a foundation support of the drive branch chains and the upper jaw structure. Two connecting relationships exist between the upper jaw structure and the lower jawstructure and comprise slideway and sphere contact of the elastic temporal-mandibular joint and rope connection of the drive branch chains. Each drive branch chain is composed of pneumatic muscles connected in series and a rope. The chewing robot has the characteristics of chewing muscle elasticity restoring, telescopic motion mode, upper and lower adhesion point position, elastic contact of the temporal-mandibular joint and redundancy driving. By means of the novel drive manner, the chewing robot has the biology advantage of human body stomatognathic system driving, and can form accurate chewing track and occlusal force more beneficially.

The invention relates to a bionic chewing device. The device comprises a base, wherein a front support and a rear support are fixedly connected to the upper end face of the base, the front support is located in front of the rear support, a false tooth combination structure is connected into the front support, a stepping motor is installed on the base, and the stepping motor is connected to the false tooth combination structure through an occlusion driving device. A lower jaw movable platform is driven by the occlusion driving device to perform chewing motion, a spring is combined to simulate masticatory muscles, and meanwhile, the spring has a buffering effect, so that a lower jaw can more accurately simulate human occlusion, and the effect of improving the simulation degree of the actual human chewing process is achieved.

The invention relates to the technical field of traditional Chinese medicine, and specifically relates to an external-use honeysuckle-dull leaf powder for treating temporomandibular disorders. The honeysuckle-dull leaf powder is prepared by employing the components of the raw materials in weight percentage are as follows: 20-24% of rhizoma fagopyri dibotryis, 1-2% of radix psammosilenes, 3-5% of radix tinosporae, 6-9% of honeysuckle flower, 5-8% of radix angelicae, 6-9% of prunella vulgaris, 5-8% of cortex phellodendri, 5-9% of root of kudzuvine, 12-15% of sarcandra glabra, 3-6% of galla chinensis, 3-6% of schisandra chinensis, 1-3% of indigo naturalis, 2-4% of centipede, 2-4% of long pepper, 1-3% of herba asari, 2-4% of pseudobulubs cremastrae seu pleiones and 2-4% of licorice, drying and grinding the materials into fine powders, and passing the 100 meshes, so as to obtain the medicine in powder form. The honeysuckle-dull leaf powder has low cost, has high curative effect for treating the temporomandibular disorders, has no toxic and side effects, has the functions of clearing heat and removing toxicity, dispelling wind and heat, eliminating stagnation to eliminate swelling, relieving sore-throat and alleviating pain, promoting blood circulation to remove spots, dispelling wind and removing obstruction in the meridians, tonifying kidney and soothing heart, discharging fire and arresting convulsion, and the like, is suitable for masticatory muscle disorders, internal derangement, inflammatory diseases and osteoarthrosis, and has an effective rate of 91.18%.

The invention provides a unilateral mastication monitoring device and monitoring method. The unilateral mastication monitoring device comprises a first module, a second module and a processing module, wherein the first module acquires at least one left reflection wave reflected by a left masticatory muscle within a time period, the second module acquires at least one right reflection wave reflected by a right masticatory muscle within the time period, the processing module receives the left reflection waves, acquires left spectrum width values according to the left reflection waves, receives right reflection waves, acquires right spectrum width values according to the right reflection waves and judges whether unilateral mastication is performed or not within the time period at least according to the left spectrum width values and the right spectrum width values. According to the unilateral mastication monitoring device and monitoring method, whether unilateral mastication is performed or not can be automatically monitored.

The invention belongs to the field of adult stem cells and regenerative medicine, and relates to the techniques of adult stem cell extraction, external expansion and differentiation induction as well as stem cell transplantation. The techniques are based on the theory that head and facial masticatory muscles have the same origin with cardiac progenitor cells. As shown by the analysis on the genetic expression, cardiac muscle genes Nk*2.5 and Isl1 in the masticatory muscle stem cells have expressions of different degrees. The techniques utilize that the masticatory muscle stem cells have the characteristics of the cardiac muscle stem cells, collect a masticatory muscle sample by the non-invasive biopsy method, and externally expands the masticatory muscle stem cells by the suspension culture method; and non-coding micro RNA (ribonucleic acid) is adopted to change the masticatory muscle stem cells and facilitate differentiation and purification of the masticatory muscle stem cells into the heart muscle cells. The transplantation of the purified cardiac muscle cells to a part with myocardial infarction is performed by means of the coronary artery duct injection or the cell membrane technique (the cell membrane is placed on the surface of myocardial infarction organization), so that the myocardial infarction or the ischemic heart disease can be cured.

The invention relates to the field of traditional Chinese medicines, and specifically relates to traditional Chinese medicine spray for treating temporomandibular joint diseases and a preparation method thereof. The traditional Chinese medicine spray is prepared from the following raw medicines in parts by weight: 8 to 10 parts of cassia twig, 10 to 15 parts of angelica sinensis, 15 to 20 parts of safflower carthamus, 8 to 10 parts of divaricate saposhnikovia root, 10 to 15 parts of caulis spatholobi, 4 to 6 parts of radix angelicae, 6 to 8 parts of mint, 15 to 20 parts of myrrh, 2 to 4 parts of radix aconiti, 8 to 10 parts of rhizoma cyperi, 10 to 15 parts of panax pseudoginseng, 6 to 8 parts of herba asari, 15 to 20 parts of loofah sponge, 8 to 10 parts of radix notoginseng, 10 to 15 parts of calculus bovis, 15 to 20 parts of radix clematidis, 6 to 8 parts of faeces trogopterori, 4 to 6 parts of humulus scandens, 10 to 15 parts of tangerine peel, and 15 to 20 parts of rabdosia coetsa. The traditional Chinese medicine spray has the advantages of being low in cost, high in effect on treating temporomandibular disorders, safe, convenient, free of toxic and effects; the traditional Chinese medicine spray has the effects of clearing away heat and toxic materials, dispelling wind and heat, resolving mass and reducing swelling, relieving sore-throat and relieving pain, promoting blood circulation and removing ecchymosis, dispelling wind and removing obstruction in the meridians, tonifying kidney and calming heart, discharging fire and relieving convulsion, and also has the effects on treating masticatory muscle disorders, internal derangement, inflammatory disease and osteoarthropathy.

The invention relates to the technical field of medical assistant equipment and provides an oral massager for premature infants. The oral massager for premature infants comprises a strip-shaped electric handle, a massage mechanism and a milk spray mechanism, wherein the massage mechanism comprises a connecting rod and a massage component; the massage component comprises a hollowing connecting piece and two groups of massage parts; each group of massage part comprises a hollow connecting shaft and two hollow massage balls; the massage ball is provided with a plurality of milk outlets; the milkspray mechanism comprises a hollow silicone ball, a hose and a clamp part for clamping the silicone ball; one end of the hose is detachably connected with the connecting piece, and the other end of the hose is detachably connected with the silicone ball; and the clamp part is fixedly arranged on the electric handle. The oral massager for premature infants can be used for massaging and stimulatingthe masticatory muscle of the oral cavity of a premature infant and feeding colostrum into the oral cavity of the infant while massaging the colostrum is absorbed through oral mucosa to ensure nutrition intake.

The invention provides a unilateral mastication monitoring device and monitoring method. The unilateral mastication monitoring device comprises a first module, a second module and a processing module, wherein the first module acquires at least one left reflection wave reflected by a left masticatory muscle within a time period, the second module acquires at least one right reflection wave reflected by a right masticatory muscle within the time period, the processing module receives the left reflection waves, acquires left spectrum width values according to the left reflection waves, receives right reflection waves, acquires right spectrum width values according to the right reflection waves and judges whether unilateral mastication is performed or not within the time period at least according to the left spectrum width values and the right spectrum width values. According to the unilateral mastication monitoring device and monitoring method, whether unilateral mastication is performed or not can be automatically monitored.

The invention discloses child cerebral palsy masticatory muscle basic rehabilitation training equipment. The equipment comprises a bottom plate, and a pressure applying device used for deep breath training is fixed to the bottom plate. A backup plate is fixed at the top of the pressure applying device; adjusting devices are fixed to the two sides of the backup plate; a mouth control device for masticatory muscle exercise and an auxiliary device for expiration training are fixed on the outer sides of the two adjusting devices respectively; pressure is applied to the chest of a cerebral palsy child through the pressure applying device, so that the child exhales the air, and deep breath training on the child patient is effectively performed; the mouth control device is used for masticatory muscle training, and the auxiliary device is used for rapid expiration training, so that feeding and language pronunciation training of the child patient are met, effective rehabilitation training is conducted, medical staff only need to control equipment for auxiliary training, and the working intensity of the medical staff is greatly relieved.

The present invention disclosures a method of stabilizing masticatory forces during re-mineralization around dental implants. The method includes installing a dental implant and injecting botulism toxin into masticatory muscles.

The invention discloses a product for preventing excessive chewing and a preparation method of the product. The product is prepared from the following raw materials in parts by mass: 25-55 parts of gum base components, 8-10 parts of human milk oligosaccharides, 8-10 parts of D-galactose, 8-10 parts of L-fucose, 8-10 parts of D-mannose, 8-10 parts of D-xylose, 8-10 parts of N-acetylglucosamine, 8-10 parts of N-acetylneuraminic acid, 8-10 parts of N-acetylgalactosamine, 0.01 part of a bitter agent precursor and 0.1 part of a hydrolytic liposoluble enzyme, wherein the bitter agent precursor is limonin glycoside, and the hydrolytic liposoluble enzyme is a hydrolytic liposoluble enzyme for promoting limonin glycoside to be hydrolyzed into a bitter agent limonin. The product disclosed by the invention has the beneficial effects that the product has effects of preventing tooth decay, removing bad breath, promoting salivary secretion to help digestion, exercising facial masticatory muscles andthe like, and the health problem caused by that consumers excessively chew related products can be effectively solved.

To provide a tongue muscle-strengthening device which can prevent or recover a poor posture that is attributed to no development of lingual adhesion in the mandible to the skull due to the decreased function of tongue muscles, stress-induced disorder that is attributed to the hyperfunction of the masticatory muscle group and tongue muscles in the cerebral cortex motor area, as well as the dysfunction and an aesthetic impairment of the mouth and which can actualize lingual adhesion. The tongue muscle-strengthening device in the invention of this application is composed of the part of maxillary teeth contact that is in contact with the maxillary teeth, the parts of dorsum of tongue and palate contact that are respectively in contact with the dorsum of tongue and palate, as well as the part of connection that connects the part of maxillary teeth contact with the parts of dorsum of tongue and palate contact. The user brings the part of palate contact into contact with the palate by inserting the part of maxillary teeth contact into the maxillary teeth, by bringing the part of dorsum of tongue contact into contact with the dorsum of tongue, by bringing the lingual apex into contact with the part of lingual apex contact, and by elevating the dorsum of tongue, and maintains the condition for a while. The elasticity of the part of connection places a sustained and strong burden on tongue muscles and strengthens tongue muscles. Furthermore, the tongue muscle-strengthening device in the invention of this application has good usability because it is an intraoral device.

The invention discloses a splitting active oral cavity mouth gag, which comprises an upper jaw plate, a lower jaw plate, upper and lower L-shaped force transfer rods, and an elastic restoring member, wherein the upper and lower L-shaped force transfer rods are fixedly connected in the middle of the upper jaw plate and the lower jaw plate, and the elastic restoring member is arranged between the upper and ; when in use, the upper jaw plate and the lower jaw plate are respectively worn to stabilize and are positioned on an upper dental arch maxillofacial and a lower dental arch maxillofacial; an elasticity rubber ring is hung on a small hook of the upper and lower force transfer rods; the amount of the rubber rings to be hung is adjusted according to the order of severity of the limited individual opening; and the shrinkage force that the rubber ring is extended achieves the function of continuously opening through the force transfer rods. The splitting active oral cavity mouth-opener has the advantages of small volume, convenient wearing and simple operation, can make a mouth-close movement of the mandible when worn, and can enable the function of the masticatory muscles to acquireeffective practices; the size of the mouth opening force can be adjusted through increasing and decreasing the rubber ring; the engagement surface of the jaw plates are matched with the occlusal surface of patients and encircled by a buccal fin so as to acquire a stable fixed position. The splitting active oral cavity mouth gag can be used for computer assisting design of individual repairing body of the maxillofacial part.