147 results about "Risk of fall" patented technology

The present invention relates to a light-weight, small and portable ambulatory sensor for measuring and monitoring a person's physical activity. Based on these measurements and computations, the invented system quantifies the subject's physical activity, quantifies the subject's gait, determines his or her risk of falling, and automatically detects falls. The invention combines the features of portability, high autonomy, and real-time computational capacity. High autonomy is achieved by using only accelerometers, which have low power consumption rates as compared with gyroscope-based systems. Accelerometer measurements, however, contain significant amounts of noise, which must be removed before further analysis. The invention therefore uses novel time-frequency filters to denoise the measurements, and in conjunction with biomechanical models of human movement, perform the requisite computations, which may also be done in real time.

The present invention relates to a light-weight, small and portable ambulatory sensor for measuring and monitoring a person's physical activity. Based on these measurements and computations, the invented system quantifies the subject's physical activity, quantifies the subject's gait, determines his or her risk of falling, and automatically detects falls. The invention combines the features of portability, high autonomy, and real-time computational capacity. High autonomy is achieved by using only accelerometers, which have low power consumption rates as compared with gyroscope-based systems. Accelerometer measurements, however, contain significant amounts of noise, which must be removed before further analysis. The invention therefore uses novel time-frequency filters to denoise the measurements, and in conjunction with biomechanical models of human movement, perform the requisite computations, which may also be done in real time.

There is provided a system for fall prevention for a user, comprising one or more sensors for attachment to respective portions of the body, each sensor being adapted to measure movement of the respective portion of the body and to translate the movement into a signal; and a controller adapted to receive the signal or signals and to determine a risk of falling by estimating a trajectory of the centre of mass of the user relative to a trajectory of a lower portion of the body from the signal or signals.

In one embodiment, an electronically controlled hatch system for safe ingress, egress, hazard detection, and methods thereof are provided to reduce or eliminate hazards to personnel, including protection of people above and below a scuttle hatch, access port, skylight or elevated deck. Said hatch system reduces the risk of falls while ascending or descending a ladder through an access port. In certain embodiments, severe weather, hazard, security, and other safety information are detected and transmitted to a central control unit for processing and regulating the opening and closing of a hatch covering the access port and / or raising and lowering a safety railing system based on said information and / or user input. Said hatch system may include an actuator and guides for automatically locking / unlocking and opening / closing a hatch, an actuator and guides for automatically raising / lowering a railing system, hazard, security, lighting, and other safety monitoring detectors / apparatuses, and a centralized controller.

A system for people with limited mobility or with elevated risk of falling. Embodiments of the invention include internal walls that do not extend to the ceiling, a track system, a joist which is able to move on the track system, a carriage which is able to move on the joist and a harness tethered to the carriage. Other embodiments of the invention include a track system which is able to move on the track system, a carriage able to move on the joist and a harness, which is configured for an ambulatory user, tethered to the carriage. Some embodiments include a system that can automatically trigger an alert notification if the tension on the tether remains high beyond a particular time. In some embodiments, the joist is an open web joist.

System for fall prevention for a user, comprising a number of sensors (2) attachable to at least one lower body segment (3), wherein said sensors (2) are adapted to measure movement of said at least one lower body segment (3) and to translate the movement into a signal (S), the system further comprising a control (12) adapted to receive the signal (S) from said respective sensors (2), wherein in use the control (12) observes the signal (S) as an actual sequence of postures of said at least one lower body segment (3) and compares the actual sequence with a predetermined sequence of postures as a function of time, (the predetermined sequence relating to a low risk of falling,) wherein the control (12) is adapted to determine a high risk of falling when the actual sequence deviates from the predetermined sequence (to a certain degree). The invention further relates to a method for fall prevention using such a system for fall prevention.

A method for determining the motive instability of an individual using foot pressure, foot speed and foot direction data collected from sensors on shoes. The sensed data is used to determine the minimum number and the placement of pressure sensors in the shoe. The data from the sensors is processed to extract spatial and temporal parameters as desired. The data is grouped into segments based on a segmentation rule. The trend in each segment is determined. The variability of the trend in each segment is determined. The risk of fall is computed on the basis of the trend and variance. The computation is adjustable by emphasizing certain parameters in order to tailor the instability assessment to a specific individual.

A method and system for detecting a fall risk condition, the system comprising a surveillance camera configured to generate a plurality of frames showing an area in which a patient at risk of falling is being monitored, and a computer system comprising memory and logic circuitry configured to store motion feature patterns that are extracted from video recordings, the motion feature patterns are representative of motion associated with real alarm cases and false-alarm cases of fall events, receive a fall alert from a classifier, determine motion features of one or more frames from the plurality of frames that correspond to the fall alert; compare the motion features of the one or more frames with the motion feature patterns, and determine whether to confirm the fall alert based on the comparison.

Dependent variables believed to contribute to a likelihood of falling are analyzed using a latent class analysis. The dependent variables are biomedical factors, which may include, for example, arthritis, high blood pressure, diabetes, foot disorders, Parkinson's Disease, stroke, eye disorder, limb disorder, or proprioceptive disorder. Data pertaining to the biomedical factors is gathered from a population of individuals at risk of falling. Covariate data, including for example age and the number of prescriptions taken, is further analyzed against latent class data. For a particular group of at risk individuals, a set of five classes produced useful results broadly corresponding to groups representing individuals who have: good health; a range of diseases; Parkinson's Disease; arthritis; and high blood pressure. A probability of falling is determined, relative to the group of individuals with good health.

There is provided a method of determining a fall risk of a user, the method comprising collecting measurements of the motion of the user, estimating a value for a parameter related to the gait of the user from the measurements, and determining a fall risk for the user from a comparison of the estimated value with a normal value for the parameter determined from motion of the user in which the user is at their normal risk of falling.

The embodiment of the invention discloses an early warning method, device and terminal. The method can comprise the steps that three-dimensional model data in a monitoring space are acquired in real time through a three-dimensional modeling system, the monitoring space includes a moving target and a danger area, and the danger area is the area in which objects of which height exceeds the preset threshold are located; whether the moving target is located in the range of the preset edge area of the danger area is judged according to the three-dimensional model data acquired in real time; and if the judgment result indicates that the moving target is located in the range of the preset edge area of the danger area, early warning information is emitted. With application of the early warning method, device and terminal, the moving situation of the moving target can be intelligently monitored through the three-dimensional modeling system, and timely early warning can be performed when the judgment result indicates that the moving target is in the risk of falling.

In one embodiment, an electronically controlled hatch system for safe ingress, egress, hazard detection, and methods thereof are provided to reduce or eliminate hazards to personnel, including protection of people above and below a scuttle hatch, access port, skylight or elevated deck. Said hatch system reduces the risk of falls while ascending or descending a ladder through an access port. In certain embodiments, severe weather, hazard, security, and other safety information are detected and transmitted to a central control unit for processing and regulating the opening and closing of a hatch covering the access port and / or raising and lowering a safety railing system based on said information and / or user input. Said hatch system may include an actuator and guides for automatically locking / unlocking and opening / closing a hatch, an actuator and guides for automatically raising / lowering a railing system, hazard, security, lighting, and other safety monitoring detectors / apparatuses, and a centralized controller.

The invention relates to a humanoid robot endowed with particular capabilities for managing falls. The risks of falling limit the development of the mass-market use of humanoid robots. In the prior art, the modalities for detecting falls are not well suited to the case of very dynamic robots since the center of mass is very often outside their support polygons. The modalities for managing falls are also poorly suited to robots which must be economical in their computation resources. According to the invention, the conventional support polygon is supplemented with effectors for which it is determined that they are sufficiently close to the ground. Protection strategies are implemented, chosen from a set of strategies defined by a classification of the angles of fall.

A system, method, and apparatus is provided for estimating a risk of falls from pressure sensor data and inertial sensor data. A classifier function may be generated to relate the inertial sensor and the pressure sensor data with the falls risk (e.g., falls risk or prospective falls data) of the person who generated the pressure sensor data and inertial sensor data. The classifier function may be used to predict a person's risk of falls based on inputs of pressure sensor data and inertial sensor data. Separate classifier functions may be generated for men and women, or separate classifier functions may be generated for patients who closed their eyes while data was being collected and for patients who opened their eyes while data was being collected.

The invention discloses an infant sleeping state monitoring device and method based on infrared temperature measurement. The monitoring device comprises an array type infrared thermopile sensor, a master control chip, a wireless transmitting-receiving circuit, a display screen, a shaking module and a battery, wherein the array type infrared thermopile sensor is used for measuring a sleeping state of an infant, a detection range covers all the zones from the head to feet of the infant, the sleeping state of the infant is analyzed through a thermal imaging picture generated in the inside, including a coverage range of a quilt, whether the infant catches a cold and has a fever, the cold-hot feeling of the infant, deep sleeping time and sleeping quality judgment based on body temperature and a rolling activity state, judgement on an overturning sleep state and the risk of falling from a bed or whether the infant already falls from the bed, the device can give an alarm in time and record and replay all historical data in the process, makes parents feel relieved and has a good effect and more functions, the problem that a quilt kicking prevention product based on a traditional temperature measurement sensor can only detect local temperature is solved.

A foldable upright wheeled walker with adjustable armpit cushions and support frames that supports a sufficient user body weight to facilitate a natural gait and provide unassisted mobility for a wide range of mobility impaired individuals. The invention may be folded and unfolded for compact storage or transportation. The device includes large rubber tires on a caster wheel assembly and includes one or two mechanical friction brakes actuated at the levers attached to the handgrips on each side of the device. The user stands or walks within the polygonal footprint defined by the front and rear wheels with arms over the armpit cushions to provide upper-body support without resting significant weight on the user's wrists or arms or standing and walking stooped over, minimizing risk of falling.

The invention relates to a rehabilitation training system for a Parkinson patient. The system comprises a virtual scene module used for establishing a virtual scene for stimulating the sense of the patient, an information acquisition module comprising a movement acquisition unit and an encephlogram acquisition unit, and a control module, wherein the movement acquisition unit is used for acquiringmovement information of the patient, the encephlogram acquisition unit is used for acquiring encephlogram information of the patient in the process of rehabilitation training, the control module is incommunication connection with the virtual scene module and the information acquisition module and is used for receiving the movement information and the encephlogram information of the patient acquired by the information acquisition module, so that the virtual scene module generates a corresponding virtual scene according to the current state of the patient. The system is combined with the virtual reality technology and establishes the virtual scene, the patient trains in the virtual scene, the risk that the patient falls down is reduced, and the patient has the sense of safety. The state ofthe patient is judged in real time in the process of rehabilitation training, the virtual scene is regulated, and the rehabilitation training effect is improved.

The invention discloses a traveling obstacle avoidance capacity testing device. When a person walks on a pressure detection step pad, a photoelectric virtual obstacle generation device is arranged on the pressure detection step pad; a pressure scanning matrix device in the pressure detection step pad is connected with a control device through a signal acqusition device; the photoelectric virtual obstacle generation device is connected with the control device; a computer is connected with the control device through a communication device; the pressure detection step pad is formed by pressing and fixing a hard base pad, a pressure scanning matrix device and a buffer soft pad; the photoelectric virtual obstacle generation device comprises a plurality of LED (Light Emitting Diode) light strips which are uniformly spaced from one another in parallel; each LED light strip consists of LED lamps which are uniformly spaced from one another along a straight line; the direction of the LED light strips is perpendicular to the walking direction. The device is rational in design; compared with the existing method, the device has the advantages that a state the same as normal walking can be established, a gait parameter is directly measured, the device is safe and reliable, the risk of falling of a tested person is avoided, and the device can be used for testing risks such as falling of old people and the like.

A method for determining the motive instability of an individual using foot pressure, foot speed and foot direction data collected from sensors on shoes. The sensed data is used to determine the minimum number and the placement of pressure sensors in the shoe. The data from the sensors is processed to extract spatial and temporal parameters as desired. The data is grouped into segments based on a segmentation rule. The trend in each segment is determined. The variability of the trend in each segment is determined. The risk of fall is computed on the basis of the trend and variance. The computation is adjustable by emphasizing certain parameters in order to tailor the instability assessment to a specific individual.

The invention discloses an adaptive cuckoo search method for global optimization of service composition, The method is specifically characterized by when executing a service composition workflow, using a cuckoo search algorithm and providing three different search space search strategies which are separately the random long-range searches, random short-range searches and random medium-range searches, wherein the proportional coefficient and the crossover rate are introduced to adjust the varying amplitude in the stochastic medium-distance search strategy, the adaptive adjustment is made to thesearch strategy, stochastic short-distance search strategy, proportional coefficient and stability coefficient representing the step size are introduced to adjust the search strategy adaptively; additionally controlling the start-up of the search strategy according to critical probability, elite probability and equilibrium probability, and finally realizing the optimal combination scheme of the service composition problem. The self-adaptation of the control parameters of the invention improves the accuracy of the algorithm, and the risk of falling into a local optimal state through the eliteprobability is reduced.

The Safety Manhole Industrial Cover (SMIC) is a lightweight temporary safety manhole cover with a hinged access door made with aluminium or a strong nonferrous composite used when sewerage, storm water, water maintenance or inspections are required. It is a temporary self-ventilating design manhole grate to be used whenever the manhole cover is removed when operations are in progress around the manhole. The slots allow for natural light and airflow and it allows workers below ground to see through to the persons above; and vice versa. The safety manhole cover is designed to eliminate the risk of falling from heights regulations requirement whilst works are carried out near or over sewer openings by allowing the operators to walk freely above ground without having a harness to secure themselves.

The invention relates to a fall preventing device for mechanical parking equipment, which comprises a bracket (8), wherein the bracket (8) is horizontally arranged in the transverse direction; a rotary rod (6) is rotatably connected with the front middle part of the bracket (8); a proximity switch (3) and two guiding wheel seats (4) are respectively arranged at the front left side and the front right side of the bracket (8); a flat layer stop rod (2) is respectively in slide connection between the two guiding wheel seats (4) at the left side and between the two guiding wheel seats (4) at the right side; the inner ends of the left flat layer stop rod (2) and the right flat layer stop rod (2) are respectively articulated with one ends of two connecting rods (5), and the other ends of the two connecting rods (5) are respectively articulated with two ends of the rotary rod (6); two elevator upright posts (9) are respectively arranged vertically at the front left side and the front right side of the bracket (8); a stop block (1) is fixedly installed respectively on the two elevator upright posts (9); and the two stop blocks (1) are respectively arranged at the outer sides of the outer ends of the left flat layer stop rod (2) and the right flat layer stop rod (2). When a carrier has the possibility that risk of falling with a drop height more than 0.5m appears, the fall preventing device for mechanical parking equipment of the invention can be used for performing corresponding functions of fall prevention and protection.

A fall risk of a user is determined by collecting measurements of the motion of the user. A value for a parameter related to the gait of the user is estimated from the measurements. The fall risk for the user is determined from a comparison of the estimated value with a normal value for the parameter determined from motion of the user in which the user is at their normal risk of falling.

A foldable napper accessory for a child's playard positions an infant to minimize the risk of falls. The napper frame is foldable from a generally planar deplyed orientation about one or more generally longitudinally extending frame folding axes. The ends of an elongate support leg are pivotally connected to opposing side rail members of the napper frame and configured to be foldable about a leg folding axis generally transverse to the frame. Pivoting about the leg folding axis angles the support leg from the plane of the deployed napper frame or aligns the leg with the plane of the napper frame for stowage. An intermediate folding joint is provided in the support leg which includes intermediate axis generally perpendicular to the leg folding axis that allows folding of the leg only when the leg is folded into a specific orientation.

There is provided a system for fall prevention for a user, comprising one or more sensors for attachment to respective portions of the body, each sensor being adapted to measure movement of the respective portion of the body and to translate the movement into a signal; and a controller adapted to receive the signal or signals and to determine a risk of falling by estimating a trajectory of the center of mass of the user relative to a trajectory of a lower portion of the body from the signal or signals.

The standing station is used as a patient transfer tool, or as a strengthening tool. The standing station uses a leg abutment pad as a weight bearing surface that allows the patient to semi-kneel during transfers and essentially eliminates the risk of patient falls. The standing station uses an ordinary bed sheet to secure the patient. The standing station's wheel mounts do not extend past the back edge of the standing platform so it has unrestricted mobility relative to beds, chairs, wheelchairs and commodes reguardless of their design.

This invention refers to a device with protection net and assembly procedure, suitable as a barrier for every kind of opening. It uses profiles especially designed and made up of plastic material (polyamide) with fiberglass, thus allowing mass production and easy handling. It also counts on assembly and tie means integrally related to a safety mesh-like net to be used as a retaining barrier in balconies, terraces, windows, and stairways preferably. It will reduce the risk of children and / or careless people falls in a safe, economical and esthetical manner.

With the aggravation of the aging of population, tumble becomes an important cause of disability and death of the old aged 65years or above in China, and with the increase of age, the balance abilityis weakened, 'instability' tumble lacks an effective auxiliary supporting device. The invention provides a rollator capable of supporting the elbow and arm, the design of the rollator provides walkingaid protection with complete body supporting. The rollator capable of supporting the elbow and the arm adopts a U-shaped elbow supporting handlebar (20), the height of the rollator is automatically adjusted to a most suitable height according to the distance between the arm and elbow of a user and the ground, the body weight of the user is transmitted to a U-shaped supporting handlebar frame (13)of the rollator, a rollator handlebar fixing tube (6), a rollator supporting tube (5) and a rollator frame (1) supporting the two sides, a rollator back wheel adopts a big wheel with good passing ability, the user is located at the center position of the rollator body, the risk of 'instability' tumble can be avoided, the walking aid is supported in the whole process, the load on the shoulder, back, waist, legs and knee joints is reduced, the rollator is designed to be foldable, the transportation and storage are convenient, the structure is simple, and the use is convenient.