61results about How to "Reduce social burden" patented technology

Disclosed is a touch-visual substitution system based on the electric stimulation, which belongs to the medical device technical field. In the invention, the acquired character and image information is transmitted to an image processing unit by an image acquisition unit; the image processing unit processes the image information pre-correction towards the acquired image, improves the image quality and then carries out the image information simplification, enhancement, encoding processing, so as to enable the image information to be converted into an electrical signal for a stimulator; the stimulator is controlled to generate multi-channel stimulation pulses with certain requirements according to the stimulation information; a stimulation electrode array acts on the human body skin to generate touch sense, and the stimulator provides certain adjusting function for users.

Disclosed is a computer-aided device for forepart discriminating and forecasting senile dementia comprising an AD test server and a checking client machine. The server contains:Personal basic information memory unit, check license predicting unit, dial gauge memory unit, dial gauge delivery unit, receiving-replying unit, AD degree examining-predicting unit for expressing conner AD degree according to the response of the receiving-replying unit, result sending unit, memory Stat. unit and AD degree memory unit. The checking client machine contains:dial gauge receiving unit, dial gauge expressing unit, response obtaining unit, response sending unit, result incepting unit and result displaying unit. This invention can objectively judge whether the conner is suffering from senile dementia or has senile dementia portent, judge his current dementia degree and forecast his future dementia degree according to the responses.

The invention relates to a computer-aided device for screening mild cognitive impairment (MCI) of old people. The device comprises an MCI test server and an inspection client, wherein the MCI test server comprises a personal information memorizing unit, a scale memorizing unit for supplying a test scale for objectively judging the MCI to the MCI test inspection client, a scale sending unit, a response receiving unit, an MCI degree counting and memorizing unit, an MCI identifying and comparing unit and a result sending unit; and the inspection client comprises a basic information entering unit, a basic information sending unit, a scale receiving unit, a scale expressing unit, a response acquiring unit, a response sending unit, a result receiving unit and a result displaying unit. The test paper of the test scale comprises orientation force, memory, notice, watchfulness, calculation power, language denomination, delayed recall, verbal fluency, pattern recognition, verbal understanding, abstract ability and visual structure skill. The invention has the advantages of definite reliability and validity and good reliability, and is simple in operation and convenient in general survey.

The invention provides a multi-dimension cerebral stroke prevention screening method based on artificial intelligence. The method includes: S1, transmitting the collected three dimensional data of cerebral stroke to a cloud computing service platform through network to establish a cerebral stroke case database; S2, according to the established cerebral stroke case database, constructing a cerebralstroke prevention screening AI algorithm model, according to the actual incidence status of the cerebral stroke cases, verifying the cerebral stroke prevention screening AI algorithm model; S3, inputting the related data in the three dimensional data of cerebral stroke into a report output device, and according to the prevention screening AI algorithm model, outputting the cerebral stroke prevention screening report. By means of the method, risk control can be carried out on the cerebral stroke prevention screening objects and doctors, thus achieving whole-life-period management on the cerebral stroke prevention. The method has the advantages of preventing future possible risk, reducing the incidence rate of the cerebral stroke and relieving social burden.

The invention discloses an intelligent nursing device based on a brain-computer interface. The intelligent nursing device is characterized by comprising a visual stimulation screen, an electroencephalogram collector and a computer, every two of which are connected with each other, and further comprising a STM32 controller connected with the computer, and an electric nursing bed and an alarm both connected with the STM32 controller, respectively. According to the intelligent nursing device and the implementation method of the device, a new self-care manner is provided for long-term bedridden severe paralyzed patients, and especially for paralyzed patients completely losing the athletic ability and the language competence and having the motion space limited on the bed, the bedsores can be effectively reduced. The intelligent nursing device has the advantages of accurate control, stable working performance, high safety coefficient, general practicability and the like, and can be used for vast paralyzed patients.

The invention discloses an intelligent limb rehabilitation training device capable of performing rehabilitation training on limbs automatically and a training method. In the intelligent limb rehabilitation training device, the output end of a controller is connected with the input end of the a driver through a serial port; the output end of the driver is connected with a power supply of a motor; the other end of a motor output shaft is connected with a code disc; the output of the code disc is connected with the controller; and the output of a power circuit is connected with the controller and the driver respectively. Three training modes of active motion, passive motion and spasmodic muscle remission can be automatically performed under set programs; and the motion parameters can be adjusted according to the actual condition of a patient so as to help the patient to perform the best scientific and effective training and make the motor function of the patient recover better.

The invention relates to the technical field of body joint prostheses, in particular to an artificial total wrist joint prosthesis made of nickel-titanium memory metal. According to the structure, the artificial total wrist joint prosthesis comprises a radius handle connected with the radius, the upper end of the radius handle is connected with a radius joint surface, and a ball socket is arranged on the radius joint surface and matched with a polyethylene half ball arranged above the ball socket. A universal locking steel plate is arranged above the polyethylene half ball, the lower end of a metacarpal bone handle is clamped into a clamping groove above the polyethylene half ball in an embedded mode, and the upper end of the metacarpal bone handle sequentially penetrates through the universal locking steel plate and the capitate bone to be connected with the third metacarpal bone cavity and is designed to be shaped like the Arabic number 8, wherein the upper portion of the upper end of the metacarpal bone handle is open. The prosthesis can maintain the anatomical structure of the normal wrist joint, is firmly integrated with the soft tissue well, and is closer to the normal wrist joint in function, the biomechanics is more reasonable, the prosthesis is more stable, loosening is reduced, and the service life is prolonged.

The invention discloses a memantine insoluble salt sustained-release injection and a preparation method thereof. The memantine insoluble salt sustained-release injection is characterized by being prepared from the following materials by mass percentage: 1% to 30% of memantine insoluble salt as an active ingredient, 0.1% to 10% of stabilizer , 0% to 1% of pH adjuster, 0.1% to 5% of isotonic regulator and 60% to 98% of injection water; the memantine insoluble salt includes one of memantine-oleate, memantine-linoleate, memantine-linolenate, memantine-arachidonate, memantine-stearate, memantine-laurate, memantine-tannate, memantine palmitate, memantine-pamoate, and memantine-furanate. An insoluble salt technology is adopted to prepare the memantine insoluble salt, and the drug release time isprolonged by reducing the solubility of the drug. Compared with memantine hydrochloride, the solubility of the memantine insoluble salt is reduced by 40 to 600 times, and the memantine insoluble saltcan be slowly released for several days to several weeks.

The invention discloses a kit, device and method for improving a concentration of fetal free DNA in maternal peripheral blood. A lot of studies prove that through sequencing and data analysis of enriched free DNA at a point or in any region less than 160 bp in maternal peripheral blood, free DNA in maternal peripheral blood can be unexpectedly enriched and a concentration (%) of fetal free DNA isimproved by 1.5-4 times. The average concentration of the fetal free DNA in maternal peripheral blood is 13%. The device and method can improve the average concentration of the fetal free DNA to 20-40% and have remarkable effects. Through effectively increasing the fetal free DNA concentration, the data processing capacity of high-energy sequencing is greatly reduced and a high-energy sequencing cost is further reduced.

The invention relates to the technical field of early diagnosis of schizophrenia, in particular to a schizophrenia early diagnosis model based on face expression recognition magnetic resonance imagingand application thereof. The method includes: obtaining the brain imaging data under the magnetic resonance as the training data of the model; extracting features from training data; screening the extracted features; establishing an early diagnosis model of schizophrenia by using the screened features and supervised machine learning method for model training. Schizophrenia is a serious psychiatric disease.Patients with schizophrenia suffer from severe social dysfunction, and those with severe schizophrenia often have impulse, self-injury and wounding behavior.Improving the recognition rate ofschizophrenia is helpful to postpone the social dysfunction of schizophrenia patients and lighten the burden of family and society. The invention successfully constructs a multidimensional early diagnosis model of schizophrenia through feature screening according to different dimensional indexes of brain function and brain structure, and improves the recognition rate and diagnosis rate of schizophrenia patients.

The invention discloses a modular numerical control rebar and steel wire straightening and cutting device. The device comprises a steel wire and rebar placing frame, a split type traction mechanism ora centralized traction mechanism, a transverse straightening mechanism, a longitudinal straightening mechanism, a swing type cutting-off mechanism or a flying shear type cutting-off mechanism, and each mechanism is fixedly connected with a bottom frame in a threaded manner, so that too large shaking is prevented. During working, steel wires and rebar are placed on the placing frame in advance, the steel wires and the rebar are driven to move through the power of the traction mechanism, traction of the traction mechanism can drive the steel wires and the rebar to enter the straightening mechanisms and then enter a cutting area, so that straightening and cutting are completed correspondingly. The device is easy to assemble and disassemble, is flexible and changeable, and can realize modularization.

The invention provides an automatic defecation-assisting on-bed stool, for the sick and disabled who need to go to the toilet in the lying position on the bed. When the patient lying on the bed randomly urinates or urinates, the monitoring mechanism will be triggered in time to obtain a signal, and the signal driving mechanism quickly opens the large-caliber toilet door, the urinal is in place, and the patient enters the lying position toilet mode. The defecation-assisting on-bed stool passively treats the excreta at first, and only very few excreta is left on the bed and the patient, for appropriate time artificial follow-up treatment. The defecation-assisting on-bed stool can treat the stool of the patient several times in succession. The paper cushion and the towel can be automaticallychanged every time. Each time the toilet door is automatically closed for a set period of time, the primary treatment of defecation is completed, and the continuous circulation action can be repeatedmany times. And a consciousness sober person can press key operation by oneself to accomplish take care of oneself. The toilet can be used on nursing beds with other functions, and can also be installed on ordinary modified wooden beds. Consumers have access to the most valuable and practical automatic attendant toilet functions at a relatively low total cost.

The invention discloses a service robot based social contact reminding method, which comprises the steps of acquiring social relationship information of a user, wherein the social relationship information comprises social contact objects and relationship information between the social contact objects and the user; and generating a social contact reminding schedule according to the social relationship information. The service robot based social contact reminding method disclosed by the invention can generate a social contact reminding schedule for the user actively and intelligently according to the social relationship information of the user, thereby saving the social contact energy of the user, and helping the user to achieve and maintain a state of social contact equilibrium. The invention further discloses a service robot. The service robot has a social contact reminding function.

The invention provides an executive function training system used for delaying brain aging. The executive function training system comprises a training server and one or a plurality of training clients which are bidirectionally mutually connected with the training server, wherein the training server is used for receiving the data of a trainer, setting training contents, recording and processing the training data of the trainer and realizing human-machine interaction; and the training clients are used for receiving the information of the trainer, representing and recoding data, which is generated before, in and after the training, of the trainer and realizing the human-machine interaction.

The invention relates to the technical field of rehabilitation equipment and discloses a VR-based cognitive ability rehabilitation device; a virtual scene is generated by using a VR Technology, various logical tasks are set in the virtual scene, and a patient carries out corresponding operation in the virtual scene through an acquisition device according to task instructions, so that the patient hardly relies on medical staff to perform rehabilitation training in a relatively strong reality-sense environment; and meanwhile, all operating data of the patient is stored as reliable support data for a doctor to judge the rehabilitation condition of the patient, so that a new and more effective treatment means is provided for non-drug therapy, at the same time, the burden of hospital medical staff is relieved, the family and social burden is effectively reduced, and relatively practical and effective medical clinical practical value and social value are achieved.

The invention relates to a behavior analysis method and system for elderly people living alone. The method comprises the steps of collecting household appliance use information of elderly people living alone at the current moment and environment variable feature information of elderly people living alone at the current moment; inputting the household appliance use information at the current moment and the environment variable feature information at the current moment into a trained behavior analysis model, and pre-judging to obtain the current behavior of the elderly living alone; acquiring a corresponding historical behavior at the historical moment according to the environment variable feature information at the current moment; and comparing the current behavior with the historical behavior, and if the current behavior is not similar to the historical behavior, judging that the current behavior is an abnormal behavior. According to the method, the problem of low timeliness of behavior analysis of the elderly living alone by a traditional behavior analysis method can be solved, abnormal behaviors of the elderly living alone can be processed and fed back in time, the elderly living alone can be better cared, solving of problems of the elderly living alone in social governance can be greatly promoted, and social burdens can be relieved.

The invention relates to a computer-aided device for screening mild cognitive impairment (MCI) of old people. The device comprises an MCI test server and an inspection client, wherein the MCI test server comprises a personal information memorizing unit, a scale memorizing unit for supplying a test scale for objectively judging the MCI to the MCI test inspection client, a scale sending unit, a response receiving unit, an MCI degree counting and memorizing unit, an MCI identifying and comparing unit and a result sending unit; and the inspection client comprises a basic information entering unit, a basic information sending unit, a scale receiving unit, a scale expressing unit, a response acquiring unit, a response sending unit, a result receiving unit and a result displaying unit. The test paper of the test scale comprises orientation force, memory, notice, watchfulness, calculation power, language denomination, delayed recall, verbal fluency, pattern recognition, verbal understanding, abstract ability and visual structure skill. The invention has the advantages of definite reliability and validity and good reliability, and is simple in operation and convenient in general survey.

The invention relates to a method and a device for treating sewage. A scrap vertical shaft barrel in a coal mine is modified into an aeration deep well in sewage treatment, the original drainage facilities and intake pipelines are modified into water inlet and outlet systems of a sewage plant, the original coal mining technology managers and technicians are trained to become technical managers and technicians in the sewage treatment, and the technical requirements and management requirements of the deep wall aeration are met. The manpower and material resources are saved, the period of training workers in the sewage plant is shortened, the problem that the workers are laid off because of closure of the coal mine is solved, the social burden is lightened, and the life quality and the happiness index of people are greatly improved.

The present invention belongs to the technical field of vehicle safety control, and particularly relates to an emergency escape window for a vehicle. The emergency escape window for the vehicle comprises a rotation shaft fixedly connected to the inner surface of a compartment, a window frame positioned below the rotation shaft, and glass arranged in the window frame. The two ends of the rotation shaft are provided with pushing portions, more than two partitions are arranged between the pushing portions, the lower border of the window frame is fixedly connected to the inner surface of the compartment through a connection part, the face, close to the glass, of the lower border of the window frame is fixedly connected with a buffer part I, a strip partition is arranged below the window frame, a through hole is formed in the position, corresponding to the buffer part I, of the strip partition, the buffer part I passes through the through hole, the free end of the buffer part I is provided with a stop part, and a buffer part II is arranged between the through hole and the stop part. Compared with the prior art, the emergency escape window for the vehicle does not cause waste of a large amount of glass, and is simple in structure, easy to operate, low in cost, and easy to popularize.

The invention provides a chicken feed with flaveria bidentis as a raw material and a production method of the chicken feed. After the feed is used for feeding a chicken, the feed conversion rate can be increased by 1.5-6.1%, the chicken fat content can be reduced by 4.8-25.0%, the protein content can be increased by 9.5-19.4%, the total amino acid content can be increased by 1.7-4.3%, the chicken nutrition value is increased, the chicken tenderness is better in mouth feel, the egg nutrition value can be increased, the crude protein content is increased by 3.3-10%, the total free amino acid content can be increased by 2.5-7.8%, and the lecithin content can be increased by 4.0-11.5%. According to the invention, a way is provided for the resource utilization of the flaveria bidentis as a severely harmful external invasive weed, the flaveria bidentis is changed into things of value, the ecological environment is favorably protected, and higher economic, ecologic and social benefits are achieved.

The invention relates to a light emitting diode matrix lamp optical system. An AC / DC rectifier is arranged for converting an alternating current to a direct current and providing the current to a switch type voltage-reducing integrated circuit; the switch type voltage-reducing integrated circuit is arranged for reducing the voltage of the inputted current to be a working voltage of rechargeable batteries and providing a constant current so as to charge the rechargeable batteries; the rechargeable batteries can provide a power source to the light emitting diode when the power is cut off; a touch switch is arranged for automatically open the switch type voltage-reducing integrated circuit after the power is cut off; the switch type voltage-reducing integrated circuit increases the voltage of the rechargeable batteries to be an LED working voltage and outputs the voltage to a voltage-stabilizing circuit; and the voltage-stabilizing circuit is arranged for converting the voltage input by the switch type voltage-reducing integrated circuit to a stable direct current power source and providing to the light emitting diode matrix so as to illuminate the light emitting diode matrix. The system of the invention can be applied to the illumination devices in public and plays a positive role in decreasing the burden on society in the peak period of using electrify in city and lowering the cost.

A vertical hand washing and flushing integrated urinal is composed of a hand washing basin, a tap, a flushing hole, a collection basin, a washing wall, a sewage discharging hole, a base, a water inlet pipe and a sewage discharging pipe. By means of the design that the hand washing basin and a vertical urinal are combined, the hand washing basin and the tap are designed at the upper end of the vertical urinal, and the flushing hole is formed in the lower end of the hand washing basin. When people use the urinal, the people can directly open the tap to wash hands, and the sewage water generated in the hand washing process is directly used for flushing the urine collection basin through the flushing hole and is discharged from the designed sewage discharging pipe to achieve the aim of saving water. Meanwhile, the people do not need to specially build the hand washing basin and the space when building a public washroom to achieve the aims of saving construction cost and reducing society burden. The urinal is simple in process, convenient to install and very suitable to be used in washrooms in the public site to build conservation-minded society.

The invention discloses a prognostic evaluation method and an evaluation system for a coma patient. The evaluation method comprises steps of examining and recording vital signs of a patient, recordingCSI value and GCS score data, and developing an evaluation software system for the prognosis of the patient by using the recorded big data. The evaluation system comprises a patient CSI value and GCSscore items input module, a data processing module and a data output module. The patient CSI value and GCS score items input module, the data processing module and the data output module communicatewith each other. According to the invention, the prognostic evaluation method and the evaluation system for the coma patient can evaluate and judge the prognosis of the coma patient, grasp awakening possibility and recovery degree of the patient, help to judge treatment effect and whether a treatment method is suitable, thereby preventing excessive medical treatment.

The invention discloses an automatic head washing equipment, which comprises a blow-off pipe, a blow-down valve, a cleaning device, a lying bed, a switch board, a massaging hand, a liquid injection pipe, a liquid injection pump, a shampoo storage box, a water box, a hydraulic cylinder, a flexible board, a sprinkling valve, a shower nozzle, a side wall, a bottom board, an arc-shaped hole, a blow-off nozzle, a hair dryer, massaging particles, a display screen, a heater, a water feeding pipe and a switch button, wherein the cleaning device is installed on one end of the lying bed; the blow-off pipe is installed below the cleaning device; the blow-off pipe is provided with the blow-down valve; the switch board is arranged on the junction of the cleaning device and the lying bed; the cleaning device comprises the massaging hand, the liquid injection pipe, the liquid injection pump, the shampoo storage box, the water tank, the hydraulic cylinder, the flexible board, the sprinkling valve, theshower nozzle, the side wall, the bottom board, the arc-shaped hole, the blow-off nozzle and the hair dryer. The automatic head washing equipment has the advantages of being simple in operation and high in automation degree, and can be easily used even by people with arm disability, and the family burden and the social burden of people with arm disability can be lightened.

The invention discloses applications of an H1 histamine receptor antagonist in preparation of drugs for treating glioma. The H1 histamine receptor antagonist is terfenadine, a terfenadine metabolite, desloratadine, hydroxyzine dihydrochloride, chloropyramine hydrochloride or chlorpheniramine maleate. Compared with a conventional anti-glioma drug, a mechanism of acting on a brand-new drug target and killing tumor cells is completely different from that of the previous drugs, drug tolerance and drug resistance are not generated at present. A drug acting target is different from that of the previous drugs. Therefore, bright prospects are expected to bring treatment for glioma. Particularly, the selective H1 histamine receptor antagonist terfenadine can significantly inhibit proliferation and migration of glioma cells, and can effectively kill glioma cells at a low concentration. Thus, the compound terfenadine can be used for preparing drugs for treating glioma, improving prognosis and survival rate of patients with glioma, and relieving social burden.

The invention relates to the technical field of chemical analysis and detection, and in particular relates to a detection kit based on a tandem mass spectrum non-derivatization method. The detection kit comprises an isotope labeled amino acid standard substance mixture, an isotope labeled acyl carnitine standard substance mixture, an extract liquor and a flow phase. The detection kit based on the tandem mass spectrum non-derivatization method is characterized in that the extract liquor consists of methyl alcohol, water and saturated monocarboxylic acid, wherein the volume ratio of the methyl alcohol to the water to the saturated monocarboxylic acid is 1000: (1-50): (0.01-2). The detection kit based on the tandem mass spectrum non-derivatization method provided by the invention is high in flexibility and accuracy rate, is simple to operate, and has important significance for improving the diagnosis level of metabolic diseases, lowering the burden of society and families and improving the quality of population.

The invention relates to a multifunctional wheelchair. The wheelchair comprises a seat, a walking mechanism and a driving unit, wherein the seat comprises a deformable seat frame, an adjustable seat surface, a backrest and front and rear telescopic adjusting supporting rods; the deformable seat frame comprises an upper beam, a bottom beam, a front stand column and a rear stand column; the front stand column and the rear stand column are hinged to the upper beam and the bottom beam through connecting shafts; the walking mechanism comprises front and rear wheels, front and rear crawler belt assemblies and a flat ground walking mode self-locking device; the joint of the front and rear crawler belt assemblies coaxially rotates; the front telescopic adjusting supporting rod is connected betweenthe front stand column and the bottom beam; the rear telescopic adjusting supporting rod is connected between the upper beam and the rear crawler belt assembly; a mode conversion operation rod is connected to the adjoining position of the front stand column and the front and rear crawler belt assemblies; a seat surface angle stabilizing adjuster is connected between a mounting frame of the upperbeam and the rear crawler belt assembly; and the driving unit comprises a power unit, a variable speed transmission mechanism, a variable speed clutch mechanism and a mode conversion clutch. The wheelchair has the flat ground walking, stair climbing and cross-country abilities, is good in comfort and safety, enhances the indoor and outdoor independent action ability of people having difficulty inmoving, improves the life quality of people, and relieves the burden of personnel serving people.

The invention relates to an automatically-controlled multi-angle waist movable chair which comprises a movable seat, and the movable seat comprises a seat frame, a multi-degree-of-freedom seat platform, a leg supporting mechanism, a back plate and a back massage mechanism. The multi-degree-of-freedom seat platform comprises a platform top frame, a platform bottom frame, multiple sets of lifting push rods and a cushion connected to the platform top frame in a sliding mode, and the two ends of each lifting push rod are in universal connection with the platform top frame and the platform bottom frame respectively. The leg supporting mechanism comprises a first supporting rod rotationally connected to the seat frame, a second supporting rod rotationally connected to one end of the first supporting rod, a fixed semi-ring and a pedal, wherein the fixed semi-ring and the pedal are connected to the second supporting rod in a sliding mode. The back massage mechanism comprises massage wheels and a linear module; a control system is arranged on the platform bottom frame and connected with the multi-degree-of-freedom seat platform and the linear module. The massage device is more targeted in massage, light in overall structure, safe, reliable and simple in operation.

The invention discloses a modular numerical control rebar and steel wire straightening and cutting device. The device comprises a steel wire and rebar placing frame, a split type traction mechanism ora centralized traction mechanism, a transverse straightening mechanism, a longitudinal straightening mechanism, a swing type cutting-off mechanism or a flying shear type cutting-off mechanism, and each mechanism is fixedly connected with a bottom frame in a threaded manner, so that too large shaking is prevented. During working, steel wires and rebar are placed on the placing frame in advance, the steel wires and the rebar are driven to move through the power of the traction mechanism, traction of the traction mechanism can drive the steel wires and the rebar to enter the straightening mechanisms and then enter a cutting area, so that straightening and cutting are completed correspondingly. The device is easy to assemble and disassemble, is flexible and changeable, and can realize modularization.

An overflow type hand washing and flushing integrated pedestal urinal is composed of a hand washing sink, a straight-flow faucet, an overflow type water collection tank, flushing holes, a collection tank, a flushing wall, a sewage disposal hole, a base, a water inlet pipe and a discharge pipe. The overflow type hand washing and flushing integrated pedestal urinal integrates a hand washing sink and a pedestal urinal. The overflow type water collection tank, the hand washing sink and the straight-flow faucet are arranged at the upper end of the pedestal urinal, and the flushing holes are formed at the lower end of the hand washing sink. When people use the pedestal urinal, they can wash hands directly through water curtains formed by downward flow of the overflow type water collection tank, water used by people for hand washing then directly flushes the pedestal urinal through the flushing holes formed at the lower end of the hand washing sink and then is discharged through the discharge pipe, and therefore the purpose of saving water is achieved. Meanwhile, by adopting the overflow type hand washing and flushing integrated pedestal urinal, no special hand washing sink and space need to be constructed when people build public washrooms, and therefore construction cost is saved and social load is reduced. In addition, the overflow type hand washing and flushing integrated pedestal urinal is simple in technology, convenient to install and applicable to washrooms in the vast public places.