60results about How to "Reduce financial burden" patented technology

The invention provides a method and a device for simulating a video medium by a multi-mode medium in dubbing and a readable storage medium thereof. In the dubbing field, a traditional video medium has the problems of high cost, poor flexibility and the like. According to the method, multi-mode media such as audios, pictures and texts are dynamically loaded during program running, and the video effect is simulated through specific steps. The method comprises the following steps of: initializing an item, configuring resources, requesting and analyzing data, loading a UI (User Interface) control, synchronizing the data and the control, adding an interactive operation and an extended function, and finally releasing the resources. The technology effectively reduces the cost, realizes resource sharing, improves the operation efficiency and flexibility, has cross-platform compatibility, has important practical value in dubbing and other multimedia application scenes, and can bring more efficient and convenient experience to users.

The invention relates to the technical field of power system optimization operation, and discloses a cascade water-wind-light combined peak regulation method and system containing a hybrid water pumping station, and the method comprises the steps: obtaining the historical data of a cascade watershed wind-light power station, and predicting the scheduling data of the cascade watershed wind-light power station; an optimization model is constructed, and solving is carried out; and based on the solution of the optimization model, generating a scheduling instruction of the cascade watershed wind-solar power station. By optimizing the model, the adjusting efficiency of the hybrid pumped storage power station is effectively improved, and the hybrid pumped storage power station can flexibly participate in peak regulation of a power system. And meanwhile, the consumption rate of new energy such as wind power and photovoltaic energy is remarkably improved, and the phenomenon of electricity abandoning is reduced. And by reasonably controlling the operation of the thermal power generating unit, the dependence on thermal power is reduced, so that carbon emission is reduced, and environmental protection and sustainable development are promoted. In addition, by smoothing the residual load of the system, the load peak-valley difference is reduced, the stability of the power grid is enhanced, and the economic burden of system operation is reduced.

The invention discloses a woven reinforced polyether-ether-ketone composite conduit capable of being continuously produced and a processing method and application thereof, the woven reinforced polyether-ether-ketone composite conduit comprises an inner-layer pipe, a middle woven layer and an outer-layer pipe structure, and the inner-layer pipe, the middle woven layer and the outer-layer pipe structure are all made of polyether-ether-ketone; and the outer-layer pipe structure is formed outside the inner-layer pipe and the middle woven layer through a dip-coating process. The invention has the following advantages and effects: the scheme utilizes a new mechanical structure, and has the effects of facilitating continuous industrial production, improving the processing efficiency, reducing the economic burden of a patient, prolonging the service life and effectively improving the overall bending performance of the composite conduit.

The invention relates to the technical field of digital medical treatment, in particular to a method and a device for constructing a colorectal cancer multi-mode recurrence risk model. The construction method comprises the following steps: acquiring a panoramic digital scanning image of a pathological tissue section of a colorectal cancer patient; constructing a data set and selecting a region of interest by using the panoramic digital scanning image; constructing a pathological omics feature scoring model, a collagen feature scoring model and an immune feature scoring model through the region of interest; and according to the pathological omics feature scoring model, the collagen feature scoring model and the immune feature scoring model, constructing a multi-modal recurrence risk model. On the basis of an image analysis technology, the pathological omics feature scoring model, the collagen feature scoring model and the immune feature scoring model are constructed and integrated into the multi-mode recurrence risk model, and accurate prediction of the recurrence risk of the colorectal cancer patient is achieved.

The utility model belongs to the technical field of medical instruments, in particular to a ureter stent tube and a pulling device, which comprises a stent tube, a guide wire, a pushing tube, a catheter and a catcher, a plurality of tail wires are arranged on the stent tube, a plurality of suckers are arranged on the tail wires at equal intervals, one end of the pushing tube wraps the tail wires and is sleeved at the outer end of the stent tube, and the other end of the pushing tube is sleeved at the outer end of the catheter. A first operation cavity, a second operation cavity, an air inflation cavity and a water injection cavity are formed in the catheter, the first operation cavity and the second operation cavity facilitate penetrating of the guide wire and the capturing device, the air inflation cavity facilitates air inflation into the air bag, the water injection cavity injects water into the bladder, a traction base, a mounting plate and a reset spring are arranged in the capturing device, and the traction base is connected with the mounting plate and a pull ring through a traction rope. By means of the device, a stent tube can be directly pulled out conveniently, pain and inconvenience caused by pulling out of special instruments such as a cystoscope and a ureteroscope can be avoided, and meanwhile the economic burden of a patient is reduced.

The invention discloses a method for synthesizing a CTPA blood vessel image based on a plain-scan CT image, and the method comprises the steps: carrying out the registration and preprocessing of the plain-scan CT image and the CTPA image, taking three continuous plain-scan CT slice images at a selected depth as samples, taking three continuous CTPA slice images at corresponding positions in the CTPA image as labels, and carrying out the recognition of the CTPA blood vessel image. Determining a blood vessel tissue area of the label and the edge of the enhanced blood vessel; a U-Net model is constructed; constructing a loss function loss; training the U-Net model based on the sample; and sequentially taking three plain-scan CT slice images from a plain-scan CT image to be predicted according to the depth, and inputting the three plain-scan CT slice images into the trained U-Net model to obtain a predicted CTPA image. According to the method, the image effect similar to CTPA is simulated or reconstructed through the non-enhanced plain-scan CT image. This method has reduced patient radiation exposure, shortened examination time, and possibly reduced examination costs.

The application discloses application of a naphthalene nitrile derivative in preparation of an antitumor pharmaceutical composition, in particular, application of a 2-(imino)-naphthalene nitrile derivative in preparation of an antitumor pharmaceutical composition. The 2-(imino)-naphthalene nitrile derivative provided by the application has a significant inhibiting effect on colon cancer, liver cancer, lung cancer, prostate cancer, cervical cancer, neuroglioma and breast cancer, exhibits excellent antitumor characteristics, can be used as a leading drug molecule for resisting tumors, and has a good development and application prospect in development of antitumor drugs.

The invention relates to the technical field of clinical detection of cerebrospinal fluid, and particularly discloses a smear device for detecting cerebrospinal fluid, which mainly comprises a sample tube and a piston assembly, the sample tube comprises a first tube body, a second tube body and a third tube body; the second pipe body is located above the first pipe body, a liquid outlet hole is formed in the bottom, and a liquid inlet hole is formed in the side wall; the bottom of the third pipe body is communicated with the liquid inlet hole through a flow channel; the piston assembly comprises a piston, a handle part and a center rod; the piston is fixedly connected with a tongue part, the center rod can be inserted into the liquid outlet hole, and the piston assembly is provided with an initial station and a flaking station. According to the smear device for detecting the cerebrospinal fluid, the manufacturing process of a cell smear is simplified, operation is convenient and fast, the smear manufacturing efficiency is remarkably improved, the smear manufacturing time is shortened, unnecessary physical damage to cells in the smear manufacturing process is avoided, then cell rupture and dissolution can be effectively reduced, and the smear quality is remarkably improved; meanwhile, the comprehensive cost of manufacturing the cell smear is obviously reduced.

The invention relates to the field of traditional Chinese medicine, in particular to a traditional Chinese medicine composition for treating bone nonunion and a preparation method and application thereof. The traditional Chinese medicine composition is prepared from the following raw material medicines in parts by weight: 10 to 20 parts of herba epimedii, 18 to 25 parts of sambucus williamsii, 10 to 15 parts of radix echinopsis, 10 to 15 parts of rhizoma atractylodis, 10 to 20 parts of radix cyathulae, 10 to 20 parts of sedum aizoon, 10 to 15 parts of radix angelicae pubescentis, 10 to 15 parts of ligusticum wallichii, 10 to 20 parts of red ginseng, 10 to 15 parts of peach kernel and 5 to 10 parts of liquorice. According to the traditional Chinese medicine composition, all the raw material medicines and compatibility thereof are optimized, the effects of promoting blood circulation to remove blood stasis, relieving swelling and pain, tonifying the liver and kidney and promoting reunion of fractured bones are jointly achieved, the treatment characteristics of multi-component, multi-path and multi-target synergistic effects of traditional Chinese medicines are fully played, clinical healing of patients suffering from bone nonunion can be obviously improved, and the traditional Chinese medicine composition has good application and popularization value.

The utility model discloses a kind of tablet number grain filling devices, belong to pharmaceutical equipment technical field, driving mechanism is installed on tray, the output end of driving mechanism is connected with measuring disc through tray axis, tray is obliquely set on base by supporting mechanism, a plurality of tablet discharge ports are provided on measuring disc, a plurality of circumferential array arranged medicine containing area are provided on measuring disc, the position of medicine containing area corresponds with tablet discharge port position, scraper is connected with tray by bunker fixing block, scraper is attached to measuring disc, barrel-shaped bunker is provided on tray. The present application adopts obliquely set tray and matched measuring disc, scraper, can accurately control tablet quantity, improve production accuracy. Dust suction port and broken tablet discharge port can clean impurities and broken tablets in time, ensure medicine quality. Driving mechanism stably provides power, ensure that device continues to operate.

The application relates to the technical field of water purification equipment, and provides a water outlet pipe structure of a water purifier, which comprises a water outlet pipe body, the water outlet pipe body comprises a first pipe body and a second pipe body which are communicated with each other and perpendicular to each other, water flows through the first pipe body and flows out along the pipe opening of the second pipe body, a rib is connected in the second pipe body, the central axis of the rib is in the same line with the central axis of the first pipe body, the rib extends to one side of the outlet of the second pipe body, and a spacing is left between the rib and the side wall of the second pipe body which is close to one side of the first pipe body. Based on the above, the water outlet pipe of the water purifier is leveled, and the economic burden is reduced.

The utility model relates to medical instrument technical field, concretely relates to a head fixing instrument for medical beach chair position, including forehead limiting band and mandibular limiting band, be equipped with two groups of sliding connection mechanism connection between mandibular limiting band and forehead limiting band, the forehead limiting band end is equipped with first fixed establishment, makes the forehead limiting band both ends detachable fixed through first fixed establishment, and mandibular limiting band is fixed on the beach chair. The utility model discloses through setting up two interlaced limiting bands, makes the patient operation process stability good, and postoperative convenient disposal can reduce medical cost, reduce patient economic burden, and convenient operation operation, increase patient comfort degree, improve patient and medical staff satisfaction.

The utility model discloses a goods pushing mechanism for a loading platform, and relates to the technical field of platform goods pushing. The cargo pushing mechanism for the loading platform comprises the loading platform and a pushing assembly, a mounting plate is arranged on the loading platform, the pushing assembly is located on the loading platform, the pushing assembly comprises a moving structure and an adjusting structure, the moving structure comprises a motor, a rotating rod, a first gear, a sliding block, a toothed plate and a guide rail, and the rotating rod is rotationally mounted at the top of the inner side of the mounting plate; the top of the inner side of the mounting plate is fixedly connected with a sliding block, and the outer wall of the rotating rod is fixedly sleeved with a first gear. Compared with traditional manual pushing, the goods can be quickly and continuously pushed into the compartment from the loading platform, the goods loading and unloading speed is remarkably increased, limitation of human fatigue is avoided, the high-strength production requirement is met, particularly, the performance is excellent in the peak period, dependence on operators is reduced, the labor requirement can be reduced, and the labor cost is reduced. And the economic burden caused by the labor cost is reduced.

The invention relates to the technical field of artificial intelligence in assisted reproduction, in particular to an embryo optimization model construction method, device and equipment and a storage medium. Comprising the following steps: acquiring video data of embryonic development from a plurality of fertilized eggs to a blastocyst stage based on a delayed photography embryo culture technology; constructing time sequence image data according to the video data; the time sequence image data comprises multiple frames of continuous images; performing feature extraction on each frame of image of the time sequence image to obtain a high-dimensional feature corresponding to each frame of image; determining a comparison difference feature with the corresponding reference sample feature, performing fusion, and constructing a fusion feature corresponding to each frame of image; constructing a feature sequence of the target embryo development according to the fusion features; and acquiring a trained embryo quality grading model according to a time dependency relationship of the feature sequence for capturing embryo development. The model provided by the invention can optimize the utilization rate of embryos, reduce unnecessary repeated ovulation promoting cycles, and promote the development of reproductive medicine towards the precision direction.

The invention relates to a medical imaging continuous carbon fiber / PAEK composite material bone fracture plate and a preparation method thereof, and the preparation method comprises the following steps: premixing PAEK fine powder and a heat stabilizer, then carrying out melt blending extrusion and granulation to obtain PAEK granules, and carrying out melt spinning on the PAEK granules to obtain PAEK fibers; pAEK fibers and continuous carbon fibers are woven to obtain a CF / PAEK mixed fabric; wherein an imaging agent is added before melt blending of PAEK granules, or the imaging agent is loaded on continuous carbon fibers by adopting a solution impregnation method; the CF / PAEK mixed fabric is sequentially stacked and laid according to the angle, the CF / PAEK mixed fabric is placed in a bone fracture plate mold to be subjected to compression molding, then rough machining, finish machining and polishing treatment are conducted, and the continuous carbon fiber / PAEK composite material bone fracture plate product capable of achieving medical imaging is obtained. The material has the advantages of high mechanical strength, good fatigue resistance, no corrosion, good biocompatibility, and long-term fluorescence development or X-ray development effect.

The present invention relates to the field of environmental data processing technology, and in particular to an intelligent monitoring and early warning system for emergencies, comprising an adjustment box and a camera device, wherein the inner cavity of the adjustment box is provided with an adjustment component; the adjustment component comprises an adjustment block, the surface of the adjustment block is provided with an adjustment groove, the inner cavity of the adjustment groove is slidably connected with a running block, and one side of the running block is fixedly connected with a connecting rod; the inner cavity of the adjustment box is provided with a front and rear adjustment component; the front and rear adjustment component comprises a first motor fixedly connected to the adjustment box. The present invention has the function of automatically circling the area to be released on the map to replace the manual circling process, which can greatly improve the efficiency of map circling, and the ultimate goal is to improve the efficiency of early warning information release.

This invention discloses a 3D printing device, a spectacle lens, and a method for manufacturing the same. The device includes a base lens fixing structure, a triaxial control structure, a curing agent extrusion structure, a lens height positioning structure, and a curing structure. The base lens fixing structure is used to fix the base lens. The triaxial control structure is connected to the curing agent extrusion structure and is used to adjust the position of the curing agent extrusion structure. The curing agent extrusion structure contains a liquid curing material and includes a micro-injection pump, which extrudes microliter-level droplets of liquid curing material onto the surface of the base lens. The lens height positioning structure is connected to the micro-injection pump and is used to adjust the distance between the tip of the micro-injection pump and the surface of the base lens. The curing structure solidifies the liquid curing material droplets on the surface of the base lens into microlenses. This invention provides each patient with a custom-made lens with microlenses, reducing lens manufacturing costs and alleviating the financial burden on users.

The utility model relates to a trimming device for a rubber and metal combined sealing element. At present, a traditional edge trimmer and manual trimming have the problems that the trimming quality and efficiency are low, the economic cost is high, and the trimming appearance and size requirements cannot be met at the same time. The T-shaped nut is shaped like a Chinese character'gan 'and comprises a T-shaped component and a nut-shaped component, and the nut-shaped component is arranged on the T-shaped component. A first groove is formed in the T-shaped part, a second groove is formed in the nut-shaped part, the T-shaped part is sleeved with the combined sealing part, a rubber lip above the combined sealing part is embedded in the first groove, and the nut-shaped part is arranged below the combined sealing part to lock the combined sealing part. And a rubber lip below the combined sealing element is embedded in the second groove. The trimming quality and efficiency are improved, the economic cost is low, and the trimming appearance and size requirements can be met at the same time.

The application discloses a portable bipolar cold cycle ablation device and an ablation needle, which comprises a handheld main body, an energy application unit, a cold cycle unit, an energy supply unit and a circulating refrigeration unit. The energy application unit is fixedly arranged on the outside of the handheld main body, and the cold cycle unit is arranged in the inside of the energy application unit. The energy application unit can be moved to the target tissue together with the handheld main body. The energy application unit comprises at least one first energy application element and at least one second energy application element. The cold cycle unit comprises a fluid circulation channel extending from the proximal end of the energy application unit to the distal end and returning from the distal end to the proximal end. The fluid circulation channel is provided with an insulation part on the channel wall of at least the part extending into the first energy application element and / or the second energy application element. The circulating refrigeration unit is in circulation communication with the first liquid inlet and the first liquid outlet at the proximal end of the fluid circulation channel, and is used for driving the fluid circulation flow and refrigerating the fluid circulation flow.

The invention provides a micro-service cloud backup method based on a cloud platform, which belongs to the technical field of data backup, and comprises the steps of micro-service identification and classification, data incremental backup, automatic recovery process and backup data storage and management. According to the micro-service identification and classification technology, services needing to be backed up can be identified, and classification is carried out according to the characteristics and importance of the services so as to ensure that data of key services are protected preferentially. The data incremental backup technology focuses on only backing up the data which changes since the last backup, so that the volume of the backup data and the time required by the backup are reduced. The automatic recovery process ensures that the recovery operation can be quickly executed under the condition that the data is lost or damaged, and the service interruption time is shortened. The storage and management technology of the backup data relates to the guarantee of the security, consistency and availability of the data, and the long-term storage and compliance management of the backup data.

The invention provides a composition and a kit for oral squamous cell carcinoma typing and application of the composition and the kit, and particularly discloses the composition which comprises a fluorescent staining marker for CBX3 protein and a fluorescent staining marker for IL1RN protein. The invention also discloses a kit containing the composition. The kit and the composition can be used for oral squamous cell carcinoma typing, and prognosis and treatment sensitivity of a patient can be predicted according to a typing structure. The composition and the kit provided by the invention adopt a small amount of genes as classification and prediction indexes, so that the detection cost and the experiment complexity are greatly reduced. Through the established extremely simple classification rule, the expression quantity ratio of CBX3 to IL1RN only needs to be detected through the immunofluorescence technology, sample typing can be rapidly completed according to the condition that CBX3: IL1RN is larger than 1 or smaller than 1, complex biological information analysis is not needed, the detection process is visual and efficient, and the clinical diagnosis efficiency and accuracy can be effectively improved.

The invention discloses a traditional Chinese medicine and crunchy candy for treating qi failure to control blood type hypermenorrhea. The traditional Chinese medicine and crunchy candy is prepared from the following raw materials in parts by weight: 25-40 parts of Chinese angelica, 25-40 parts of prepared rehmannia root, 30-45 parts of white paeony root, 30-45 parts of ligusticum wallichii, 70-90 parts of Chinese date, 70-90 parts of dried longan, 10-20 parts of rhizoma cimicifugae, 10-20 parts of dried ginger, 10-15 parts of cinnamon and 10-15 parts of cassia twig. According to the traditional Chinese medicine composition, the advantages of all the medicines are complementary, all the medicines are combined, the synergistic effect of all the medicines is fully exerted, the multiple active ingredients of the traditional Chinese medicine composition act together, and the purpose of treating the qi failure to control blood type hypermenorrhea symptom is achieved through multiple ways.

This invention discloses the application of a Trichinella spiralis cysteine ​​protease inhibitor in acute myocardial infarction and subsequent ventricular remodeling, belonging to the field of medicinal chemistry. This invention provides a drug that can prevent, alleviate, and / or treat acute myocardial infarction and subsequent ventricular remodeling. The active ingredient of this drug is the Trichinella spiralis cysteine ​​protease inhibitor cystatin, abbreviated as rTs-Cys. rTs-Cys can effectively delay acute myocardial infarction and inflammatory response in mice, reduce the infarct area, improve cardiac function deterioration, and reverse organ pathological damage, providing a new approach for the clinical treatment of acute myocardial infarction and subsequent ventricular remodeling.

The utility model discloses a special stretching traction device for solder wire production, which comprises a traction bottom plate, the traction bottom plate is designed in a rectangular structure, a traction guide plate which is transversely arranged is fixedly mounted at the center of the upper surface of the traction bottom plate, a strip-shaped groove is formed in the upper surface of the traction guide plate, and the groove forms a guide groove; bearing seats are fixedly mounted on the inner walls of the two sides of the guide groove, a threaded lead screw is rotationally connected between the two bearing seats, the threaded lead screw is a right-hand and left-hand threaded lead screw, the right-hand and left-hand threads of the threaded lead screw are sleeved with threaded pieces correspondingly, the threaded pieces are in threaded connection with the threaded lead screw, and secondary connecting plates are fixedly mounted at the top ends of the two threaded pieces correspondingly; according to the utility model, through the relative movement of the two tension detectors, the stretching traction detection work of the solder wire can be very conveniently completed, the working personnel can be helped to understand the maximum toughness performance of the produced solder wire and the application range of the solder wire, and the production practicability is better.

The utility model relates to the technical field of medical instruments, in particular to a flushing device for eyes. The eye flushing device comprises a liquid medicine needle sheath, a liquid medicine needle, a dropper, a liquid flow tube, a flow regulator and a flushing hose, the liquid medicine needle sheath is connected to the liquid medicine needle in a sleeving mode, the liquid medicine needle is located at the head end of the liquid flow tube, the dropper is located at the lower end of the liquid medicine needle, the flow regulator is located on the lower middle portion of the liquid flow tube, and the flushing hose is connected with the liquid medicine needle sheath. The flushing hose is connected to the tail end of the liquid flow pipe; the pipe diameter of the liquid flow pipe is increased, the flow is increased, and the flushing pressure is increased; the height of the flushing liquid bottle is visually placed according to scales on the outer surface, the flushing pressure is adjusted, and the pressure is prevented from being too small or too large; the liquid flow pipe is detachably connected with the flushing hose in a threaded mode, the flushing hose is replaced when eyes of different patients are cleaned, the liquid flow pipe can be recycled for multiple times, medical resources are saved, and economic burdens of the patients are relieved.

The utility model discloses a stamping type plate hammer for a mine crusher, which belongs to the technical field of crusher plate hammers, and comprises a plate hammer main body, a first fixing block and a second fixing block, and the plate hammer main body comprises a first plate hammer piece. A first plate hammer piece is placed in a rotor body, a second fixing rod is pressed down, a first fixing block is inserted into a first fixing groove, the first fixing block is in butt joint with a second fixing block, the second fixing rod is clamped in a placement groove, a first connecting rod and a second connecting rod are arranged in the second fixing groove in a penetrating mode, and finally a threaded cap is tightened. The first plate hammer part is in butt joint with the second plate hammer part, so that the plate hammer main body is mounted, the plate hammer main body is optimized, people can quickly mount or dismount the plate hammer, less time is spent in mounting, the mounting or dismounting efficiency is obviously improved, and the mounting and using convenience of the plate hammer is improved.

A spine internal fixing device with a fusion function comprises a pedicle screw, the pedicle screw comprises a screw body, a screw tail is arranged at the upper end of the screw body, a nut is connected to the screw tail through internal threads, the screw body and the screw tail are of a honeycomb structure simulating cancellous bone, and solid external threads are arranged on the outer surface of the screw body. According to the spinal internal fixation device with the fusion function, a full-assembly simulation cancellous bone honeycomb structure of a pedicle screw rod nut and a matched connecting piece is prepared by adopting a 3D printing technology, and meanwhile, solid structures of key stress parts such as an external thread tip threaded connection surface are reserved so as to guarantee early mechanical fixation strength; after the components are assembled, a continuous bone ingrowth channel is formed, so that the transformation of internal fixation of the spine from temporary mechanical support to permanent osseous fusion is realized, and various intervertebral, intervertebral, posterior lateral and transverse process bone grafting fusion steps in a traditional spine fusion operation can be omitted.

The invention relates to a circular internal cutting closer for grinding glass nodules under lung pleural membrane, which comprises a traction mechanism and a cutting and restraining device, the traction mechanism is mounted on the cutting and restraining device and used for pulling lung tissue to be cut into the cutting and restraining device, and the traction mechanism is mounted on the cutting and restraining device and used for pulling the lung tissue to be cut into the cutting and restraining device. And the to-be-cut lung tissue which is pulled by the pulling mechanism to enter is subjected to mouth binding through the cutting mouth binding device and then is cut. The internal cutting closer has the beneficial effects that the internal cutting closer can complete lung tissue traction according to expectation, and can be combined with a cutting restraining device, complete lesion excision, pathological diagnosis obtaining, safe cutting edge obtaining and excision of less lung tissue, so that the lung function loss is reduced, an operation can be completed by only using one internal cutting closer, the economic burden of a patient is further reduced, and the operation efficiency is improved. Therefore, a more ideal treatment mode is created for a patient, and the internal cutting closer is suitable for peripheral early-stage lung cancer, early-stage lung cancer close to pleura and early-stage lung cancer with GGO as a main part.

A teenager automatic arch expanding device with an adjusting track comprises a belt ring fixed to any tooth from number 4 teeth to number 8 teeth of the upper jaw, and the belt ring is arranged at the lingual side position of the selected tooth in a welding or other fixing mode; the two metal rods are connected to the belt ring, the metal rods extend from the tongue side of the belt ring to the upper jaw direction, a rail cavity used for guiding the metal rods to move is formed in the movable rail, one end of each metal rod is inserted into the rail cavity and extends along the movable rail, and the positions of the metal rods are adjusted and fixed through the adjusting assembly; the spring is arranged in the movable track, the spring is arranged in the length direction of the movable track and connected with the metal rod inserted into the track cavity, and the metal rod is driven to move in the movable track through the elastic effect of the spring; and the stop valve is arranged on the movable track. The problems that an existing expansion device is tedious in manual adjustment, poor in fixing stability, poor in tooth comfort of teenagers and the like are effectively solved.

The application provides a kitchen system, which uses exhaust gas of a power equipment to heat a clean water source combined by condensate water of an air conditioning system and hot condensate water of a steam heating equipment, turns waste into treasure, generates heat energy, heats drinking water, rice or dishes, is healthier for human body, protects cabin environment of the kitchen, and the secondary use of the hot water source can also clean and extinguish the exhaust gas and drainage system of the kitchen, and can also heat the condensate pipe of the air cooler in the food freezer and the pipe system in the low-temperature environment such as the air cabin of the two outer wings or the open deck, so that the pipe system does not freeze. The kitchen system circulates and uses the exhaust gas of the power equipment, the condensate water of the air conditioning system and the hot condensate water of the steam heating equipment, thereby reducing the electric load of the ship, conforming to the green and low-carbon development trend of the ship industry, and effectively overcoming the shortcomings in the prior art and having high industrial utilization value.