77 results about "Digestive canal" patented technology

An embodiment of the present disclosure provides a reflux-preventing cushion for preventing digestive reflux that occurs in a newborn, the reflux-preventing cushion including a backrest cushion configured to be inclined at a certain angle and allow the newborn to be laid to prevent the digestive reflux, and a buttocks cushion including a pair of bands configured to cover the newborn from both sides of the body of the newborn in a state in which the newborn is laid on the backrest cushion, wherein an uninclined backrest cushion is further included on an upper portion of an inclined backrest cushion.

The invention relates to the technical field of image analysis, in particular to an alimentary canal lesion analysis method and system based on image recognition, based on an endoscope image of an alimentary canal of a patient, the edge intensity of pixel points in the image is evaluated through image analysis, and a suspected lesion area in the image is recognized by adjusting an edge detection threshold value; the non-suspected lesion area and the suspected lesion area are distinguished, and a digestive tract area distinguishing result is obtained. According to the method, the identification process of the suspected lesion area and the non-suspected lesion area is optimized by dynamically adjusting the edge detection threshold value, the shape, size and color of the suspected lesion area are evaluated, and the suspected lesion area is matched with the known lesion type in the database, so that the lesion type identification accuracy is improved; and the image data corresponding to the lesion type is extracted, data support is provided for subsequent medical personnel to confirm the lesion type, and the evaluation of the healthy tissue is refined by analyzing the deviation between the non-suspected lesion area and the normal color data.

Disclosed is an oral apparatus for injection administration in the digestive tract, comprising a housing, a trigger assembly, and an administration assembly. The housing comprises a top cover at the upper part thereof, a middle housing placed in the middle, and a base located at the bottom. The material density of the middle housing is less than the material density of the base, so that the apparatus is in the shape of a roly-poly toy. The trigger assembly comprises a soluble fixing member, an elastic member, and a transmission member. The administration assembly comprises a microneedle and a drug. The apparatus provided by the present invention, by means of an arranged liquid storage bag, greatly increases the drug loading capacity and can theoretically achieve a drug loading capacity of 50 mg, which is a significant improvement over the prior art.

The application discloses a multi-marked endoscopic imaging lens for digestive tract, and belongs to the field of biomedical microscopic endoscopic imaging. The endoscopic imaging lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens; the first lens focuses laser; the second lens is matched with the first lens to limit a light beam in an effective light aperture of the lens; the third lens corrects chromatic aberration; the fourth lens and the fifth lens are combined to correct aberration; the sixth lens adopts an aspheric lens to correct spherical aberration caused in a collimating and focusing system; and the seventh lens is matched with the sixth lens to correct chromatic aberration. The working spectral range of the microscopic objective lens group is 488-860 nm, the effective light aperture is less than 1.8 mm, the mechanical outer diameter is not greater than 2.6 mm, the numerical aperture at the object side or the tissue is 0.55, the imaging field of view is 450 microns, the magnification is 2.14 times, and the working distance is 84 microns. The effect of matching excitation and fluorescence spectrum of a clinically available fluorescence contrast agent is realized.

The invention belongs to the technical field of medical instruments, and discloses a digestive tract endoscope. The digestive tract endoscope comprises an endoscope body and a traction assembly, the endoscope body can move in the digestive tract, a first channel is formed in the endoscope body, and the two ends of the first channel penetrate through the outer wall of the endoscope body and the front end of the endoscope body respectively; a camera is arranged at the front end of the mirror body; the traction assembly can movably penetrate through the first channel and comprises a traction piece and a first balloon, the traction piece can move in the alimentary canal, the traction piece is sleeved with the first balloon, the first balloon can contract or expand, and when the first balloon expands, the first balloon can abut against the inner wall of the alimentary canal; the front end of the endoscope body is sleeved with a second balloon, the second balloon can contract or expand, and when the second balloon expands, the second balloon can abut against the inner wall of the alimentary canal. According to the alimentary canal endoscope, a sleeve arranged outside the alimentary canal endoscope in a sleeving mode is removed, the passing ability is improved, the endoscope entering difficulty is reduced, operation is convenient, the alimentary canal endoscope can be suitable for examination of multiple parts such as the upper alimentary canal and the lower alimentary canal, and cost can be reduced.

The invention is suitable for the technical field of medical treatment, and provides an auxiliary detection method, device and equipment for a digestive tract and an endoscope system. The auxiliary detection method for the alimentary canal comprises the steps that a historical three-dimensional model, obtained through three-dimensional reconstruction based on a historical alimentary canal image, of the alimentary canal is obtained, and historical position information and historical cleanliness information of multiple position points of the alimentary canal are marked on the historical three-dimensional model; obtaining a current alimentary canal image obtained by shooting the current position point; determining corresponding current position information of the current alimentary canal image in the alimentary canal; target position information associated with the current position information is determined from the historical position information, and associated historical cleanliness information is determined; in a target three-dimensional model of the digestive tract, marking a position point corresponding to the target position information, and marking auxiliary information obtained according to historical cleanliness information associated with the target position information in the target three-dimensional model. The embodiment of the invention can assist in improving the detection efficiency of endoscope detection.

The invention discloses an exception identification and calibration processing method and system based on a digestive tract endoscope image, and belongs to the technical field of exception identification and calibration processing. Extracting a focus area in the endoscopic image; endoscopic images and gastric acid value data are synchronously acquired in the same data acquisition period and are respectively recorded as periodic focus area and periodic gastric acid value data; calculating the change rate of the periodic focus area; calculating a fluctuation value of the periodic gastric acid value data; calculating comprehensive abnormal values in all data acquisition periods; calculating an abnormal difference value between different patients; presetting a threshold value, analyzing and performing alimentary canal abnormity identification calibration; according to the method, the change rate of the focus area and the fluctuation value of the gastric acid value are calculated, and comprehensive abnormal value analysis is combined, so that the structural and functional abnormalities of the digestive tract can be comprehensively evaluated, and a more accurate diagnosis basis is provided; by calculating the abnormal difference value between the patients, the group associated diseases can be effectively identified, automatic judgment and calibration are performed, and the accuracy and efficiency of diagnosis are improved.

The invention discloses a multi-label endoscopic imaging lens for a digestive tract, and belongs to the field of biomedical microscopic endoscopic images. The endoscopic imaging lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens focuses laser, and the second lens is matched with the first lens to limit a light beam in an effective clear aperture of the lens; the third lens corrects chromatic aberration; a fourth lens and a fifth lens are combined to correct aberration; the sixth lens is an aspheric lens and corrects spherical aberration brought in collimation and focusing systems, and the seventh lens is matched with the sixth lens to correct chromatic aberration. The working spectral range of the microscope objective set is 488-860 nm, the effective clear aperture is smaller than 1.8 mm, the mechanical outer diameter is not larger than 2.6 mm, the numerical aperture at the object space or the tissue is 0.55, the imaging view field is 450 microns, the magnification factor is 2.14 times, and the working distance is 84 microns. And the effect of matching excitation and fluorescence spectrum of a clinically available fluorescence contrast agent is realized.

The invention provides an alimentary canal operation consumable consumption prediction system based on big data analysis, and aims to accurately predict the consumable consumption in a data driving mode. According to the system, patient data, operation data, consumable data and hospital data in a hospital EMR, an HIS, a supply chain management system and a hospital management system are collected in a multi-source mode, and after format unification, cleaning, feature extraction and normalization are carried out, a multi-model prediction system is constructed; a logic regression model is adopted to evaluate complication risks, an SVR model is utilized to predict the amount of fault-tolerant consumables when complications exist, and finally a total prediction result is dynamically output in combination with the probability of the complication risks and pushed to an electronic medical record system to assist doctors in preoperative preparation.

This invention relates to a device for electric field therapy of the digestive tract, comprising a catheter, a support, an electrode array membrane, and a pulse generator; the pulse generator includes a current sensor for sensing the current flowing through the electrode pairs; during an initial time period, in a first sequence of pulse waves, the voltage amplitude of subsequent pulses is greater than the voltage amplitude of preceding pulses, and the current sensor senses a current equal to or exceeding a lower limit value I of a set range. S(MIN) At that time, in the next time period, the absolute value U of the voltage amplitude of each pulse of the second sequence pulse wave S Equal. This invention controls the output voltage amplitude of the pulse generator through feedback from a current sensor, making treatment safer for the human body.

The invention discloses an esophageal stent covering film based on bacterial cellulose and waterborne polyurethane as well as a preparation method and application of the esophageal stent covering film, and belongs to the technical field of medical stent covering films. The preparation method of the stent covering film comprises the following specific steps: preparing a SiR / PDA composite film by a dipping-oscillation method, putting the SiR / PDA composite film into an acetobacter xylinum fermentation culture solution to realize in-situ synthesis of BC on the film, mixing 5-Fu and a WPU emulsion, pouring the mixture onto the film, and drying to prepare the 5-Fu-WPU / BC / PDA / SiR esophageal stent covering film. The preparation method provided by the invention is relatively low in cost, the stent covering film based on BC and WPU prepared by the method has good swelling property, stability, thermal stability and mechanical property, and the loaded 5-Fu has stable drug release property. The esophageal stent can be effectively applied to local administration treatment of digestive tract diseases such as esophageal cancer, and a new technical scheme is provided for functional modification of a clinical esophageal stent.

The present invention relates to a method for reducing lipid binding of brazzein and / or to method for improving digestibility of brazzein in a subject's digestive track as well as to a modified brazzein polypeptide and uses of it and to a nucleic acid encoding the same.

The present application relates to the field of medical device technology, and more particularly to a stent system capable of sustained drug delivery. The stent system comprises a coated stent and an infusion catheter. The coated stent is coated with an inner membrane and an outer membrane, forming a liquid reservoir between the inner and outer membranes for storing drugs. The outer membrane is provided with a liquid outlet, through which the drug can seep out, achieving sustained drug release. The liquid outlet of the infusion catheter is inserted into the liquid reservoir to infuse the liquid reservoir. This stent system can achieve sustained drug release, effectively resolving the problem of drug retention during digestive tract drug delivery.

The invention discloses a diphosphonic acid manganese nanoparticle, a preparation method thereof and application of the diphosphonic acid manganese nanoparticle in tumor treatment. The preparation method comprises the following steps: dropwise adding a water-in-oil emulsion system of diphosphonate into a water-in-oil emulsion system of manganese ions in stirring to establish a coordination skeleton, curing by absolute ethyl alcohol, adding a certain proportion of fat material, performing vortex hydration by a film dispersion method, and extruding to pass through a film. The diphosphonic acid manganese nanoparticle is small in particle size and good in stability, and has a pH-sensitive release characteristic; the constructed nanoparticles have a remarkable immune regulation effect, and the ICD effect and the cytotoxic effect of oxaliplatin are enhanced by directly acting on tumor cells. The diphosphonic acid manganese nanoparticles cooperate with Oxp to effectively inhibit digestive tract tumor growth and distal metastatic tumors, the dosage of Oxp can be further reduced, and the diphosphonic acid manganese nanoparticles have good in-vivo safety.

The present invention belongs to medical equipment and discloses a spherical and cylindrical integrated airbag for expansion and fixed support when entering the digestive tract. The invention is characterized in that a spherical airbag and a cylindrical airbag are provided on the same hose, and both the spherical airbag and the cylindrical airbag have expansion pipes in the same hose for communication and expansion by external gas / liquid supply.

The invention belongs to the technical field of medical health monitoring, and discloses a digestive tract early cancer onset risk early warning method and system based on data analysis. Comprising the steps that a user side collects user feature data and sends the user feature data to a cloud platform; the cloud platform analyzes the user feature data and judges the digestive tract state of the user; the cloud platform estimates the digestive tract early cancer probability according to the digestive tract state and sends the digestive tract early cancer probability to the medical terminal; the medical terminal collects user inspection data and sends the user inspection data to the cloud platform; the cloud platform evaluates the early cancer degree of the digestive tract in combination with the user examination data and the user feature data; the cloud platform generates rehabilitation suggestions according to the early cancer degree of the digestive tract and sends the rehabilitation suggestions to the corresponding user side; the digestive tract cancer can be found and diagnosed as soon as possible, and treatment or protection measures can be taken in the early cancer stage of the digestive tract, so that the possibility of disease development or complications is reduced, and the rehabilitation effect and the long-term health condition of a user are improved.

The invention discloses a primer group for simultaneously detecting four equine digestive tract bacteria and application thereof, the primer group comprises primer sequences as shown in SEQ ID NO: 1-8, and the four equine digestive tract bacteria are salmonella enteritidis, salmonella typhimurium, clostridium difficile and lawsonia intracellular. Extracting total DNA (deoxyribonucleic acid) of a sample to be detected by using the excrement sample nucleic acid extraction kit; the total DNA is used as a template, and the primer group is used for multiple PCR reaction to obtain an amplification curve. According to the invention, a primer sequence with high sensitivity and specificity is adopted, so that the quality of a detection result is ensured; the detection method is simple to operate, time-saving and labor-saving; the detection flux is high, and the reagent consumable cost is low.

The invention relates to the technical field of endoscopes, and particularly discloses traction equipment for an endoscope, which comprises an endoscope rod, a first connecting rod is arranged at the tail end of the endoscope rod, and the first connecting rod is connected with a probe through a second connecting rod; the monitoring assembly is arranged at the tail end of the probe, and the contact condition of the advancing end of the probe and the inner wall of the digestive tract is monitored through the monitoring assembly; the telescopic assembly is arranged on one side of the second connecting rod, controls the probe to retract according to the abutting condition of the monitoring assembly, monitors an abutting signal of the abutting plate and the inner wall of the alimentary canal and pulls the probe to retract according to the abutting condition, and the situation that the probe continuously enters, and consequently damage to the inner wall of the alimentary canal is increased is avoided; meanwhile, according to the abutting condition of the abutting plate, the rotating direction of the probe is adjusted, the time for the probe to continuously abut against the inner wall of the alimentary canal is shortened, the inner wall of the alimentary canal is protected, and the situation that a patient feels uncomfortable due to the fact that the probe abuts against the inner wall of the alimentary canal for a long time is avoided.

The application discloses 1,2,3-triazole compounds with antitumor effects and a preparation method and application thereof, and belongs to the technical field of medicinal chemistry. The application simply and efficiently synthesizes novel 1,2,3-triazole compounds, and does not involve heavy metal catalysts or microwave reactions. In vitro antitumor activity tests of the compounds show that the 1,2,3-triazole compounds have certain inhibitory effects on the growth of digestive tract tumor cells (human gastric cancer SGC7901 cells, human colon cancer HT-29 cells and human esophageal cancer EC9706 cells). The 1,2,3-triazole compounds can be used as candidate or lead compounds for further development, and are applied to the preparation of antitumor drugs, especially anti-digestive tract tumor drugs.

The application discloses an alimentary canal sheathing canal stent which comprises a stent main body, the stent main body comprises a plurality of stent ribs and a recovery line, the plurality of stent ribs are woven pairwise to form a plurality of meshes with large middle parts and two sharp ends, and the plurality of meshes are connected pairwise and end to end along the radial direction through the edges on the middle parts of the meshes; the plurality of meshes are connected pairwise along the axial direction through the tips at the two ends of the meshes; the recovery line sequentially passes through the plurality of meshes on the near-end side in a forward and reverse winding manner, and a line knot is reserved, and the line knot can be pulled to fold the stent main body; the valve clack assembly comprises at least three valve clacks, a base and a connecting ring, the valve clacks are made of silica gel materials, the two ends of the at least three valve clacks are elastically attached in pairs and connected with the inner edge of the base, and the centers of the valve clacks are arranged in a protruding mode towards the far-end side and form concaves towards the near-end side. The center of the valve clack can be closed in the radial direction under the pressure applied from the far-end side to the near-end side, and the center of the valve clack can be opened in the radial direction under the pressure applied from the near-end side to the far-end side.

The invention relates to the technical field of auxiliary traction forceps for digestive endoscopes, and particularly discloses auxiliary traction forceps for digestive endoscopes, which comprise an outer rod tube, an adjusting part is arranged in the outer rod tube, and a clamping part is arranged above the outer rod tube; the adjusting part comprises a first gear, the first gear is arranged in the outer rod pipe, an adjusting cap is arranged at one end of the first gear, first adjusting racks are arranged on the two sides of the first gear in a meshed mode, a connecting rod is arranged above the first adjusting racks and slides in the outer rod pipe, and a second adjusting rack is arranged above the connecting rod and slides in the outer rod pipe. The second adjusting rack is meshed with a second gear, one end of the second gear is rotationally connected with the outer rod tube, and the other end of the second gear is fixedly connected with the clamping part, so that stable adjustment of the clamping part of the traction forceps at any angle of 0-90 degrees can be achieved, lesion tissue can be conveniently and flexibly clamped and taken out, and the traction forceps are effectively adaptive to the complex environment of digestive tract surgery.

The invention relates to the technical field of oral cavity cleaning, and particularly discloses a safe foreign matter cleaning device for oral cavity treatment, which comprises a dental scaler body, a control panel arranged on the outer side of the dental scaler body, a charging port arranged on the periphery of the dental scaler body, a cleaning head in threaded connection with the top of the dental scaler body, and a collecting mechanism arranged on the top of the dental scaler body. A display screen is fixedly connected to the outer side of the dental scaler body, by arranging the collecting mechanism, cleaned stain residues can be collected when stains on teeth are cleaned, water flow is prevented from being swallowed by children by mistake or inhaled into the respiratory tract, and the water flow which is swallowed by mistake possibly contains bacteria or dentifrice components in the oral cavity and causes stimulation or infection to the digestive tract; the water flow inhaled into the respiratory tract may cause bucking, suffocation and other serious consequences, by arranging the flushing mechanism, the water flow flushing force can be changed when the frequency of the dental scaler body is adjusted according to the hardness of the teeth of the child, and the smaller the frequency is, the larger the water flow flushing force is.

The invention provides an intestinal canal anastomosis and anastomotic leakage metal stent, and relates to the technical field of medical instruments, the intestinal canal anastomosis and anastomotic leakage metal stent comprises a metal stent, a drainage tube and a stent release device, the metal stent is arranged in the stent release device before being released, and the metal stent is dumbbell-shaped after being released and comprises a first upheaval section, a second upheaval section and a groove section, the groove section is a double-layer metal net and comprises an inner-layer metal net and an outer-layer metal net, a space is formed between the inner-layer metal net and the outer-layer metal net, the inner face and the outer face of the metal support are both wrapped with silica gel coatings, a plurality of round holes communicated with the space are formed in the silica gel coating of the outer-layer metal net, the drainage tube is connected with the groove section, and the interior of the drainage tube is communicated with the space. After being released, the metal stent can block a digestive tract ventage or support liquid secreted by an anastomotic stoma, intestinal mucosa, blood vessels and ventage tissue, the liquid can enter the space between the two layers of metal stent nets through the round holes in the silica gel coating of the outer-layer metal net and is sucked out by negative pressure, cleanliness of the anastomotic stoma and the ventage can be kept, and healing of the anastomotic stoma and the ventage is promoted.

This invention discloses an internet-based digestive tract sampling capsule, comprising a capsule body with a placement cavity inside. The placement cavity houses a chip, a power supply, and a locator. The power supply provides power to the chip and locator. The locator is connected to the chip and can send location information to the chip. The chip can interact with external devices. The capsule body has multiple liquid-containing chambers arranged longitudinally. A liquid channel is formed on the left wall of each liquid-containing chamber, and a digestive fluid plug is placed within the liquid channel. A sealing plate is located on the left side of the digestive fluid plug, sealing the liquid channel. The chip can control the sealing plate to open the liquid channel. This device can locate the capsule's position and, through a combination of active and passive sampling methods, can achieve precise location identification and ensure a high sampling success rate.

The invention discloses an electric incision knife device for a digestive tract endoscopic surgical instrument control system, which comprises a surgical actuator which is positioned at the far end of the electric incision knife device and comprises a flexible arm and an incision knife arranged in the middle of the flexible arm in a penetrating manner; the driving part is located at the near end of the electric incision knife device and comprises a bottom plate, a flexible arm driving assembly and an electrode driving assembly, and the flexible arm driving assembly and the electrode driving assembly are arranged on the bottom plate; the switching part is connected between the driving part and the conduction part; the conduction part is connected between the operation actuator and the switching part and is arranged to be a nested multi-cavity tube; according to the electric incision knife device, manual control of a doctor is replaced with electric control, the movement of the incision knife is more flexible, the range is wider, and the surgical operation precision and operation efficiency are improved.

The present invention provides a temperature-corrected analyte detection method, which involves adding a series of analyte calibrators with different concentrations to an immunoassay strip, and then using an optical analyzer to measure the signal values generated after each concentration of analyte calibrator is captured on the detection pad of the immunoassay strip at each segmented temperature point. Then, with the T / C value at each segmented temperature point as the X-axis and the concentration of the analyte calibrator as the Y-axis, a corresponding equation is plotted; then, according to the selected n segmented temperature points, temperature segmentation is performed, and different formulas are used for calculation in different temperature segments. This temperature-corrected analyte detection method can be based on time-resolved fluorescence immunoassay and is used to more accurately detect myocardial markers, upper respiratory virus infections, metabolic hormones, digestive tract series markers, allergens, etc.

The invention relates to the technical field of medicine, in particular to an oral drug delivery device and a using method thereof, and the device comprises a drug storage bin used for storing drugs; the pump body is connected with the medicine storage bin and used for releasing the medicine in the medicine storage bin to the outside; the unfolding mechanism is connected with the pump body or the medicine storage bin, and an air bag capable of being expanded or shrunk is arranged in the unfolding mechanism; the controller is electrically connected with the pump body and the unfolding mechanism; the controller controls the air bag to expand to achieve retention after the oral drug delivery device enters the digestive tract, controls the pump body to act to achieve drug delivery, and controls the air bag to shrink after receiving a drug withdrawal instruction so that the oral drug delivery device can be discharged out of the body from the digestive tract. Through the arrangement of the unfolding mechanism, the staying time of the device in the digestive tract can be precisely controlled, and through the arrangement of the pump body and the medicine storage bin, the administration dosage can be designed according to needs, such as regular and quantitative administration, and the long-acting administration of oral medicine is improved.

The utility model discloses a fistula tube assembly, which relates to the technical field of medical appliances, including a fistula tube, a transfer tube, a shunt tube assembly and a cap. A flow passage is provided inside the fistula tube for supplying the ingested liquid from outside the patient's body to the patient's digestive tract; the transfer tube can be inserted into the fistula tube and is less likely to deform than the fistula tube; one end of the shunt tube assembly is connected to the transfer tube, and the other end is provided with at least two injection ports for ingesting liquid; the cap is connected to the injection port to control the opening and closing of the injection port. The utility model provides a transfer tube on the fistula tube to facilitate the connection of the fistula tube with an external medical appliance, provides a cap to facilitate the control of the closure of the fistula tube flow passage, and provides a shunt tube assembly on the transfer tube, and provides at least two injection ports on the shunt tube assembly, so that the fistula tube can be connected to multiple feeders or syringes at the same time to inject different liquids, and the operation is simple and convenient.

The invention relates to a heterodimer fusion protein and application thereof. The heterodimer fusion protein of the present invention comprises: a first heavy chain comprising a first Fc region and an immunomodulator fused to the first Fc region; a light chain and a second heavy chain, the second heavy chain comprising a second Fc region, the light chain and the second heavy chain being complexed to form a targeting moiety exhibiting binding specificity for tumor antigens or immune checkpoints; the light chain, the first heavy chain and the second heavy chain are compounded to form the heterodimer fusion protein. The heterodimer fusion protein disclosed by the invention can be used for targeted therapy of digestive tract cancer, especially colon cancer, and is good in targeting property, and the tumor inhibition effect of the heterodimer fusion protein is obviously superior to that of cetuximab with the same target point.

The invention discloses a pair of foreign body forceps for a digestive endoscope. The pair of foreign body forceps comprises a magnetic attraction control assembly, a clamping transmission structure, an operating handle, a fixed handle and a hinge point. The invention belongs to the technical field of foreign body digestion forceps, and can relieve the burden of an operator, so that the operator can pay more attention during an operation; when the foreign matter in the melting channel needs to be clamped, the piston piece drives the foreign matter clamping pieces to turn over in the direction away from the internal spring through magnetic adsorption force, meanwhile, when the piston piece is away from the internal spring, the magnetorheological fluid in the spring cavity recovers to be in the fluid state, and at the moment, the four sets of foreign matter clamping pieces can clamp and take out the foreign matter; the operating handle and the fixed handle can be further kept in a separated state through a spring piece, so that the clamping effect of the four groups of foreign matter clamping pieces on the foreign matter is further stabilized, and the burden of an operator is further relieved; according to the scheme, the structure is simple, and the use cost is reduced while automatic experience is provided.