989 results about "Body positions" patented technology

The invention relates to the technical field of health monitoring, and discloses a patient health monitoring method and system based on dynamic electrocardiogram analysis, and the method comprises the steps: synchronously obtaining multi-lead dynamic electrocardiogram data continuously collected by a patient within a preset duration, and related physiological parameters of exercise intensity, respiratory rate and body position change; performing dynamic self-adaptive preprocessing on the dynamic electrocardiogram data based on the associated physiological parameters to obtain standardized electrocardiosignals; extracting a multi-dimensional characteristic parameter set from the standardized electrocardiosignal, and sampling according to a preset time window to generate a characteristic parameter sequence with a timestamp; and inputting the characteristic parameter sequence into a dynamic optimization analysis model capable of iteratively updating parameters through real-time physiological parameter feedback, and performing graded evaluation on the health state of the patient to generate an evaluation result. The system corresponds to the method. By adopting the method and the system, the accuracy of dynamic electrocardiogram monitoring and the evaluation refinement level meet the dynamic monitoring requirement of cardiovascular health.

The invention relates to the technical field of non-electrical variable control or regulation systems, and discloses a temperature rising blanket temperature closed-loop control method and system based on human body position recognition feedback, and the method comprises the steps: calculating a form compactness coefficient representing a heat dissipation boundary based on pressure data, and calling a mapping function to convert the form compactness coefficient into an equivalent thermal impedance estimated value; introducing the estimated value and dynamically constraining the forward channel gain of the temperature closed-loop controller according to a negative correlation strategy; according to the method, a real-time mapping mechanism of the contact topological characteristics and the control gain is constructed, so that the problem of model mismatch caused by body position change of the controlled object is solved; when the high-impedance contact state is detected, energy input is automatically reduced, the local heat accumulation effect is restrained, and the convergence and safety of the thermodynamic control process under the variable boundary condition are ensured.

Systems and methods for predicting problem behavior in individuals with developmental and behavior disabilities. A plurality of sensors are configured to collect multimodal data signals of a subject individual including a wearable upper body motion sensing device with a plurality of inertial measurement units (IMUs). An electronic controller is configured to receive output signals from each of IMUs and to model an upper body position of the subject individual based on the output signals from the IMUs. A trained machine-learning model is then applied by providing an input data set that includes multimodal signal data (e.g., including signal data from at least one IMU) and / or features extracted from the multimodal signal data. The machine-learning model is trained to produce as output an indication of whether a precursor to the problem behavior is detected and, in response to detecting the precursor, a notification (or alarm) is generated.

The invention belongs to the technical field of acupuncture and moxibustion, and discloses a needle body tracking type intelligent acupuncture and moxibustion system which comprises a data collecting and processing module, a needle body positioning module, a 3D model registration and dynamic updating module, a real-time rendering display module and an interaction module. Three-dimensional coordinates, puncture depth and angle information of a needle body are obtained in real time with high precision through a multi-modal composite positioning technology, and real-time visual association of the needle body with key anatomical structures such as bones, blood vessels and nerves in the in-vivo penetrating process is achieved by combining a dynamically-registered 3D anatomical model and the actual body position of a patient. The needle inserting precision and the operation safety are obviously improved; meanwhile, through multi-plane fusion view presentation, a dynamic breathing compensation mechanism and a layered rendering updating strategy, it is ensured that a physician can visually master the real-time space relation between a needle body and surrounding tissue, and important structures are effectively prevented from being accidentally injured; and diversified touch interaction and instant operation feedback are supplemented, so that the operation complexity is greatly reduced.

The invention discloses a body position fixing device for radiology department examination, which comprises a bed body, a limiting mechanism, an unlocking mechanism and a plurality of fixing units, the limiting mechanism, the unlocking mechanism and the plurality of fixing units are arranged on the bed body, and the limiting mechanism and the unlocking mechanism are matched with the fixing units. Each fixing unit comprises a clamping plate, a first connecting rod, a second connecting rod, a crank, a movable block, a cylinder and a base, a movable groove is formed in the base, the cylinder is arranged in the movable groove and connected with the movable block, the second connecting rods are symmetrically arranged on the two sides of the movable block, the crank and the movable block are rotationally connected with the second connecting rods, and the crank is rotationally connected with the clamping plate; the clamping plate and the base are both rotationally connected with the first connecting rod. Through the application of the body position fixing device for examination in the radiology department, the operation process is simplified, the operation burden of medical staff is relieved, and the working efficiency of the medical staff is improved.

The invention discloses an intelligent nursing body position adjusting method and system based on respiratory function protection, and relates to the technical field of artificial intelligence and medical nursing. The method comprises the steps that body pressure distribution signals and respiratory thoracic impedance signals of a patient are collected in real time, a physiological data sequence is generated through Kalman filtering and wavelet fusion noise reduction, the physiological data sequence is input into a pre-trained deep learning network, and fusion feature vectors and body position performance indexes are output. And if the body position performance index is not lower than a preset threshold value, inputting the fusion feature vector into a pre-trained classification model, and outputting a classification label of the breathing state. A preset parameter optimization mapping table is inquired according to the classification labels, candidate parameter combinations sorted according to priorities are obtained, the parameter group with the highest priority is selected, a multi-motor cooperation instruction is calculated through a feedback control algorithm, and dynamic regulation and control of the bed surface are achieved. The invention aims to realize respiratory function protection and individualized nursing by sensing the respiratory state in real time, intelligently deciding and adjusting parameters, cooperatively executing control and adopting a safety protection mechanism.

The invention provides an intelligent ward nursing information acquisition and processing method and system. The method comprises the following steps: acquiring mattress pressure data to construct a pressure grey-scale map sequence, calculating a pressure barycentric coordinate difference value between continuous frames to generate a patient movement vector set and a body barycentric movement path, extracting a continuous pixel region exceeding a pressure threshold in a single-frame image as a high-pressure region, and counting the duration of the high-pressure region; calculating gradient distribution by using the pressure data, decomposing the gradient distribution into direction and intensity data, and generating a pressure topological graph through dual-channel fusion; integrating the bending characteristics of the moving path, the time distribution characteristics of the duration of the high-pressure area and the spatial gradient characteristics of the pressure topological graph, and constructing a body position dynamic space-time diagram with the central point of the high-pressure area as a node and the moving distance and angle of the node as edges; when it is recognized that the high-risk static body position features exist in the image, a turning-over reminding process is triggered, and a control instruction is generated. According to the invention, accurate recognition and automatic nursing response of high-risk body positions are realized.

The invention discloses a thoracic surgery patient postoperative remote monitoring method and system based on the Internet of Things, and relates to the technical field of medical rehabilitation monitoring. Feature index extraction is carried out by taking body position pressure and respiration collaborative response as a two-factor dynamic evaluation basis, so that high-sensitivity judgment on a thoracic cavity load state is formed; after the abnormal state is recognized, body position adjustment is carried out, acoustic feedback analysis is linked, secondary evaluation after body position adjustment is achieved, intervention effectiveness of body position adjustment is ensured, personalized adjustment suggestions are automatically generated, the whole process of'perception-recognition-execution 'of remote monitoring is opened, the intelligent level and response real-time performance of postoperative recovery management are improved, and the postoperative recovery management efficiency is improved. According to the overall scheme, health risks caused by position misjudgment, intervention lag and monitoring blind areas in a traditional system are effectively avoided.

The invention relates to the technical field of mattresses, in particular to a multifunctional anti-bedsore intelligent mattress which comprises a fixing part made of rubber, a plurality of expansion layers used for pushing a patient to change the body position are arranged on the fixing part, and a cloth layer used for shielding the fixing part and the expansion layers is arranged above the fixing part. The expansion layer comprises a plurality of first air bags uniformly arranged in the length direction of the fixing part and second air bags uniformly arranged in the width direction of the fixing part; a driving mechanism for pushing the first airbag to vertically lift is arranged at the bottom of the first airbag; a lateral pushing mechanism for pushing the second airbag to bend and deform is arranged on one side, far away from the center of the fixed part, of the second airbag; the turning-over assisting device is used for assisting a patient in turning over, the breathability in the using process is enhanced, the body position fixing requirement is met, and the using comfort is guaranteed.

The invention discloses an intelligent anti-falling risk management system based on artificial intelligence, and relates to the technical field of artificial intelligence, the intelligent anti-falling risk management system comprises a management center, and the management center is connected with a monitoring acquisition module, a transmission processing module, a body position analysis module and a multi-dimensional supervision module; constructing a resting virtual space for the bedridden old person, and performing position marking on the collected bedridden state data through the resting virtual space based on the intelligent anti-falling bed to obtain a continuous track of the bedridden old person; boundary distance statistics is carried out according to the continuous track of the bedridden patient, the boundary distance is converted into a real-time track fluctuation map, range division is carried out on the real-time track fluctuation map, the range proportion is counted, and a curve judgment range is obtained; carrying out simulation diagnosis through the static lying virtual space to obtain an abnormal identification state, and carrying out dynamic feedback adjustment on the bedridden old people according to the abnormal identification state based on the static lying virtual space to obtain an anti-falling intervention measure; the occurrence of falling-off accidents of old people is effectively reduced, the nursing efficiency is improved, and the burden of nursing personnel is relieved.

The invention provides a multi-scene body position conversion-based standing-up assisting control method and system for the elderly suffering from stroke. According to the method, firstly, the standing-assisting device is controlled to obtain a fusion sensing result composed of body pressure distribution data and joint movement data, multi-feature coupling analysis is carried out to generate a combined recognition conclusion containing a body position state and a scene type, and then dynamic mode mapping is carried out according to the combined recognition conclusion. Outputting a target control mode matched with the current scene type and the body position, and finally performing power instruction synthesis by utilizing the target control mode to generate a cooperative control signal for driving the standing assisting equipment to execute body position conversion; according to the technical scheme provided by the invention, accurate conversion from standardized control to personalized control is realized, the suitability and the user experience of the standing assisting process are improved, the uncertainty and the individual difference in actual operation are overcome, and the stability, the safety and the adaptability of the body position conversion process are improved.

The invention relates to the technical field of intelligent medical instruments, in particular to an intelligent microwave physical therapy device and a control method thereof.The device comprises a microwave physical therapy device body and a microwave generating and radiating unit used for generating and radiating microwave energy to the focus area of a patient; the multi-mode sensing unit is used for monitoring body position information of a patient and temperature information of a treatment area in real time; the motion execution unit is used for adjusting the spatial position of the microwave generation and radiation unit according to the body position information; and the control unit is connected with the microwave generation and radiation unit, the multi-mode sensing unit and the motion execution unit, and is configured to be used for controlling the motion execution unit to adjust the microwave radiation area according to the body position information and adjusting the output power of the microwave generation and radiation unit according to the temperature information. According to the scheme, the safety of the treatment process and the accuracy of energy control are guaranteed, and the burn risk is effectively avoided.

The invention provides a spinal pedicle screw implantation system based on a multi-modal image and MR navigation, and relates to the technical field of screw implantation, the system comprises a preoperative image processing module used for identifying bony characteristics of a patient and delimiting a screw implantation safety boundary according to the bony characteristics; and the bone image fusion navigation module is used for analyzing to obtain anatomical data of the patient, and calculating a screw implantation path according to a crown porcupine optimization algorithm in combination with bony characteristics. And the body position correction module is used for calculating the body position deviation value and synchronously adjusting the screw implantation path according to the body position deviation value and the screw implantation safety boundary. And the path risk early warning module is used for calculating the distance between the surgical tool and the key tissue in real time, and performing collision risk assessment and early warning. And the postoperative evaluation module is used for quantitatively evaluating the screw implantation precision and generating a postoperative report. According to the method, more accurate positioning can be provided for screw implantation, the accuracy of a screw implantation path is ensured, early warning is performed through extraction, a doctor is reminded to take measures in time, and operation safety is ensured.

The utility model discloses a deep vein puncture training simulation device, which comprises a puncture training platform, a dummy man device and a puncture training device, the dummy man device comprises a dummy man body and simulated deep veins distributed in the dummy man body, and each simulated deep vein is filled with simulated blood. The surface of the simulation human body is coated with a transparent observation layer through which all the simulation deep veins can be observed; a body position adjusting device is arranged on the puncture training table; the puncture training device comprises a puncture training needle and a puncture feedback device; teaching and training requirements of different body positions can be met by adjusting the body position of the simulated human body, all simulated deep veins can be observed through the transparent observation layer, and puncture results can be fed back in time when puncture training is conducted through cooperation of the puncture training needle and the puncture feedback device. When puncture fails, failure causes can be known through observation of the transparent observation layer, so that trainees can adjust and correct in time, and accuracy, training efficiency and quality of puncture operation are improved.

The invention provides a multifunctional leg supporting device and a control method thereof, and relates to the technical field of medical instruments. The multifunctional leg supporting device comprises an intelligent leg sleeve and a control module, the intelligent leg sleeve integrates a self-supporting structure, a gradient pressurization system, a constant-temperature regulation and control system, an acupoint massage system, a pressure monitoring system and an observation window, and all the systems are connected with the control module. The intelligent leg sleeve can be directly matched with a traditional operation leg frame, and the self-supporting structure of the intelligent leg sleeve can still be tightly attached to the lower limbs of the patient and the leg frame by adjusting the height and angle of the leg frame. According to the device and the control method thereof, intraoperative body position supporting is optimized, physiological fitness and comfort are improved, a multifunctional system is integrated, intraoperative circulation and nerve protection capacity is improved, intelligent regulation and control are achieved, individualized dynamic intervention is achieved, intraoperative safety monitoring capacity is enhanced, the structure is modularized, and operation convenience is high.

The utility model belongs to the technical field of body position pads, and provides a spine operation prone position body position pad which comprises a bottom pad. The leg supporting assembly comprises a first leg supporting seat and a second leg supporting seat, first arc-shaped grooves are symmetrically formed in the upper surfaces of the first leg supporting seat and the second leg supporting seat, and leg supporting parts are arranged on the side walls of the first leg supporting seat and the second leg supporting seat; the chest supporting assembly comprises a first chest supporting seat and a second chest supporting seat, and second arc-shaped grooves are symmetrically formed in the upper surface of the first chest supporting seat and the upper surface of the second chest supporting seat; through the arrangement of the bottom pad, the leg supporting assembly and the chest supporting assembly, the prostrating device can be attached to the corresponding parts of the body, pressure is evenly distributed, local excessive pressure possibly caused by long-time prostrating is reduced, and the situation that a patient feels painful due to the fact that the body position of the patient is not comfortable is avoided.

The invention discloses an intelligent cooperative control system and method for vestibular function inspection. The invention discloses an intelligent cooperative control system and method for vestibular function examination, and belongs to the technical field of medical instruments. The system comprises a cold and hot air perfusion module, a dynamic visual target module, a head posture detection module, a sight distance detection module, an eye movement acquisition module, a voice interaction module, an adjustable examination chair and a central controller. The central controller realizes closed-loop control based on multi-source sensing data: during a cold and hot test, if the elevation angle of the head deviates from 30 degrees + / -2 degrees, stimulation is paused and voice prompt is performed; during visual target testing, visual target parameters are automatically compensated according to the actually measured sight distance of 1.5 m + / -0.1 m so as to maintain a constant visual angle, and the upright state (90 degrees + / -2 degrees) of the head is verified; abnormities such as eye closing more than or equal to 2 seconds or head movement more than or equal to 5 degrees per second are monitored in the whole process, graded voice intervention is implemented, and the abnormities are paused. Body position conversion is guided by voice, multi-source data are synchronously stored, and peripheral and central function correlation analysis is supported. According to the invention, the accuracy and compliance of inspection can be improved.

The invention provides an intelligent medical bed and a control method.The medical bed comprises a bed body frame and a bed surface covering the bed body frame, and the bed surface is composed of liftable units arranged in an array shape; each lifting unit comprises a lifting driving assembly, a supporting piece and a flexible supporting block, and a pressure sensor is arranged on each flexible supporting block and can detect the surface pressure in real time; the intelligent medical bed further comprises a central control system, and the central control system is electrically connected with the lifting units and used for receiving feedback signals of the pressure sensors and independently controlling lifting of the lifting units. The central control system is further connected with a posture scanning module and used for obtaining three-dimensional shape data of the body surface of the patient and generating an individualized bed surface supporting scheme through a built-in posture adjusting algorithm in combination with feedback of the pressure sensor. Multi-point independent adjustment can be achieved, intelligent pressure feedback is achieved, personalized body positions are supported, and the comfort and safety of a patient are improved.

The invention relates to the technical field of nursing beds, and discloses a traditional Chinese medicine acupuncture nursing bed which comprises a nursing bed body. The two sides of the nursing bed body are symmetrically and fixedly connected with two fixing blocks, an inner cavity of each fixing block is connected with a support structure in a clamped mode through a locking structure, and the support structures are used for containing acupuncture and moxibustion tools; the support structure comprises a support clamped in an inner cavity of a fixing block, a disc a of the support drives a connecting rod a and a disc b, then a connecting block a, the connecting rod b and the like drive a disc c and a containing plate to achieve adjustment of the spatial position and angle, and acupuncture needles, disinfection articles and the like can be adjusted to the optimal taking positions according to operation habits of doctors; a doctor can take and place tools by himself / herself without depending on an assistant holding a tray for assistance, so that the assistant is prevented from occupying an operation space, and the flexibility and accuracy of the doctor during body position adjustment, accurate acupoint selection and other operations are guaranteed.

The invention discloses a multifunctional bed suitable for puerpera antenatal examination and delivery, and relates to the technical field of obstetric tables. The posture auxiliary frames are arranged on the two sides of the bed body; each posture auxiliary frame comprises a turnover handrail and a multi-angle leg supporting frame which is arranged on the front side of the turnover handrail and can be independently adjusted to steer. By means of the posture auxiliary frame, angle adjustment of the hip and the knee of a puerpera can be met, independent adjustment of the limb on one side can be met through the two independently-operated multi-angle leg supporting frames, meanwhile, the limbs on the two sides can be separated to different degrees, and therefore the process of individually adjusting the positions of antenatal examination and delivery according to the condition of the puerpera is achieved; and the situation that the puerpera carries out antenatal examination and delivery operation at an uncomfortable body position due to knee injury is reduced.

The invention relates to the field of medical technical instruments, and particularly discloses medical clinical pipeline fixing equipment, a first connecting rod and a second connecting rod are in sliding connection to form a height-adjustable telescopic supporting structure, and height locking is achieved through a limiting bolt and a locking shifting block; multiple sets of sliding blocks are configured to slide on a sliding rod, the top of each sliding block controls the displacement range through a limiting block and a locking rotary rod, the bottom of each sliding block is connected with a universal adjusting spherical hinge structure composed of a ball seat and a ball head, the angle is fixed through a locking bolt, a rotary knob controls a transmission shaft to drive a four-piece type shrinkage sleeve to clamp a pipeline, and a pressure sensor is integrated on the inner wall to monitor the clamping force in real time. A modular mounting seat is arranged at the bottom of the device to adapt to various clinical scenes, flexible fixation of multiple pipelines is achieved through height, horizontal and angle three-dimensional adjustment in combination with intelligent pressure feedback and modular design, and the problems that a traditional rigid structure cannot adapt to body position changes and is prone to pipeline damage are effectively solved; and the clinical operation safety and efficiency are obviously improved.

The invention relates to a sucking and swallowing cooperated breast feeding auxiliary device for a premature infant, and belongs to the technical field of medical instruments. The use method comprises the specific use steps that the premature infant is gently placed on the dynamic fitting body position supporting unit; the flexible pressure sensing unit immediately starts to work to monitor the body position change of the premature infant in real time; when the premature infant starts to suck, a nursing person puts a bionic sucking head of the sucking-swallowing linkage auxiliary unit into the mouth of the premature infant; when the sucking pressure is gradually increased, the valve starts to be linearly opened to discharge milk; when it is detected that the body position of the premature infant deviates towards the right side by 6 degrees, information is rapidly transmitted to the sucking-swallowing linkage auxiliary unit through wireless signals, and a flow adjusting valve is immediately triggered to reduce the milk yield by 30%; when the body position of the premature infant returns to normal, the flow adjusting valve restores to normal milk output; according to the sucking and swallowing cooperated breast feeding auxiliary device for the premature infant, the milk intake amount of the premature infant is increased, and the bucking phenomenon does not occur in the feeding process.

The present invention provides methods and systems that provide for reliable, convenient, and noninvasive assessment of hydration status. The methods and apparatuses can use the temporal sequence of the aortic value opening and closing along with the user's body position to derive parameters that determine the hydration status of the user. The user can use this information to make near-term lifestyle changes that can improve physical performance, health, and general wellbeing.

The invention discloses a critical patient rehabilitation evaluation system based on artificial intelligence, particularly relates to the technical field of medical information and intelligent rehabilitation evaluation, and is used for solving the problems that in an intensive care unit, multi-source data are not synchronous, nursing and treatment events are often caused, sedation and ventilation fluctuation pollution is caused, and the problem of serious illness is solved. And thus, the problem of distortion in judgment of which level cannot move nowadays and can move to can be solved. A unified time base is established through three types of anchor points of nursing, body position and cardiopulmonary rhythm, passivity and autonomy are judged in an influence time period, and the passivity is deducted and reserved; and then sedation, circulation, respiratory support and medication are compiled into safety budget with delay, linkage evidence quantity and uncertainty adjustment release rhythm, and degradation and rollback are triggered by an anti-fact track of margin segmentation, so that an executable prescription of'activity, reachable grade and reason 'is output beside a bed, event pollution and physiological fluctuation are inhibited, and the aim of preventing and treating the patient is fulfilled. And maloperation and missed operation are reduced.

The utility model relates to the field of body position pad, especially adjustable waist and leg integrated body position pad. The utility model wants to solve the technical problem to provide a kind of adjustable waist and leg integrated body position pad, which is convenient to operate, can flexibly adjust support part according to patient, and realizes the independent accurate adjustment of waist and leg support. A kind of adjustable waist and leg integrated body position pad, including bottom pad, the bottom pad upper end surface is respectively provided with waist support pad and leg support pad;The first adjusting mechanism for adjusting the position of waist support pad and the second adjusting mechanism for adjusting the position of leg support pad are fixedly arranged in the bottom pad. The utility model reaches the effect that it is convenient to operate, can flexibly adjust support part according to patient, and realizes the independent accurate adjustment of waist and leg support.

The utility model relates to the technical field of ultrasonic department, and disclose a body position holding frame, including bed body structure, the bed body structure includes the bed board with T type track, and T type track is equipped with two groups, adjusting structure is equipped with two groups, and adjusting structure includes the clamping seat, second locking screw, connecting column and third locking screw, and two groups clamping seat are clamped in the outer surface of two groups T type track respectively. The utility model discloses the setting of universal ball head makes that support pad can be adjusted according to the body position of patient when using with support pad, thereby making support pad can better adhere to the body curve of patient, and because the good elasticity of silica gel material, thereby can effectively improve the comfort of patient when using, the design can further improve the flexibility of equipment when using, thereby can effectively improve the practicability of equipment whole.

The utility model discloses a kind of anti-spasm body position laying pad of hemiplegic, it is related to medical instrument technical field, upper limb pad second end is movably connected with lower limb pad first end;Liftable side stop pad is movably equipped on upper limb pad, shoulder groove is equipped on the upper limb pad of one side of side stop pad, arm pad is movably equipped with in cooperation outside shoulder groove, wall groove is opened on arm pad;Two foot supporting members are movably equipped on lower limb pad, leg pad is movably equipped on one side of lower limb pad;By the cooperation of liftable side stop pad and magnetic support plate that can overturn, patient is supported to patient back when side-lying, side stop pad is overturned to first placing groove by 180 degrees, so that side stop pad bottom upper limb pad is flush, after turning out, arm pad can be used for the arm of lateral decubitus to be inserted into the wall groove of arm pad, arm pad is parallelly attached on one side of upper limb pad, can be folded and reduced in size conveniently carried or used for supine position.

The invention relates to the technical field of medical care, and discloses a mattress and pillow integrated fixed bed sheet which comprises a fixed bed sheet sleeve arranged on a bed body and a mattress in a sleeving mode, the mattress is placed at the top end of the bed body, a plurality of connecting belts are arranged on the two sides of the fixed bed sheet sleeve, and the two ends of each connecting belt are installed on the top face and the bottom face of the fixed bed sheet sleeve respectively. A pillow pocket is connected to the top end of the fixed bed sheet sleeve, a pillow body is placed in the pillow pocket, an equipment pocket is connected to the position, close to one side, of the top end of the fixed bed sheet sleeve, and the pillow pocket and the equipment pocket are sewn to the top end of the fixed bed sheet sleeve through needles and threads. Frequent adjustment due to slipping of the pillow is avoided, the head is always properly supported, muscular tension of the neck and the shoulders is reduced, and a rest is more stable; when special treatment needs a specific body position, the stable pillow can ensure that the head position of a patient is correct, the treatment effect is ensured, and body recovery is promoted.