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2951 results about "Wheelchair" patented technology

A wheelchair is a chair with wheels, used when walking is difficult or impossible due to illness, injury, or disability. Wheelchairs come in a wide variety of formats to meet the specific needs of their users. They may include specialized seating adaptions, individualized controls, and may be specific to particular activities, as seen with sports wheelchairs and beach wheelchairs. The most widely recognised distinction is between powered wheelchairs ("powerchairs"), where propulsion is provided by batteries and electric motors, and manually propelled wheelchairs, where the propulsive force is provided either by the wheelchair user/occupant pushing the wheelchair by hand ("self-propelled"), or by an attendant pushing from the rear ("attendant propelled").

System and method for predicting patient falls

A patient fall prediction system receives video image frames from a surveillance camera positioned in a patient's room and analyses the video image frames for movement that may be a precursor to a patient fall. In set up phase, the viewpoint of the camera is directed at a risk area associated with patient falls, beds, chairs, wheelchairs, etc. A risk area is defined graphically in the viewport. The patient fall prediction system generates a plurality of concurrent motion detection zones that are situated proximate to the graphic markings of the risk areas. These motion detection zones are monitored for changes between video image frames that indicate a movement. The pattern of detections is recorded and compared to a fall movement detection signature. One fall movement detection signature is a sequential detection order from the motion detection zone closest to the risk area in the frames associated with patient falls, to the motion detection zone farthest away from the risk area. The patient fall prediction system continually monitors the motion detection zones for changes between image frames and compiles detections lists that are compared to known movement detection signatures, such as a fall movement detection signature. Once a match is identified, the patient fall prediction system issues a fall warning to a healthcare provider.

Integral, flexible, electronic patient sensing and monitoring system

A self contained patient sensing and monitoring system is provided for sensing and monitoring the presence, absence, and movement of the patient. Embodiments of the present invention provide a system conformable to a patient support surface, systems that are self contained, systems that are operationally unobtrusive, and programmable systems. Embodiments of the present invention comprise a container, a sensor configured within the container, and a control unit responsive to the sensor and configured within the container, wherein the container at least substantially encompassing the sensor and the control unit and wherein the control unit is conformable to the patient support surface. Some embodiments of the present invention comprise a container, a sensor configured within the container, and a control unit conformable to a patient support surface and configured within the container, wherein said control unit is responsive to the sensor. Embodiments of the present invention may also comprise a sensor, a signal conditioner responsive to the sensor, a processor configured to comprise instruction and data and to which the signal conditioner is configured to provide signals generated by the sensor, at least one storage media, wherein the instructions and data are stored on the at least one storage media, and at least one input connection capable of providing programmable input to the storage media and the processor. Methods are also disclosed for sensing and monitoring the presence, absence, and movement of a patient. The inventive concept can be used in various applications, such as a bed, mattress, chair, or wheelchair, to achieve the monitoring of the presence, absence, and movement of a patient.

Sight tracing method and disabled assisting system using the same

The invention discloses a view line tracking method and an assistant system for the handicapped by using the method. The method comprises the steps of image pretreatment, the orientation of a human eye area by utilizing Harr features, blinking recognition, the inspection and judgment of LED reflecting lightspot in pupils, the accurate position of pupil centre, the calculation of view line direction and so on. The system comprises an embedded-like platform, a camera, a display screen and four LED and wheelchair running control modules which are installed at the four corners of the display screen and arranged into a rectangular. The system is an embedded-type system, which carries out blinking inspection, the inspection of the reflecting lightspots against infrared light sources on corneas, the accurate position of the pupil centers and the judgment of view line directions by the camera and a processor, tracks the view line of human eyes and, meanwhile, carries out the recognition of the status of the human eyes by judging the view line directions of the human eyes when gazing on the screen, thus realizing the functions of wheelchair control, music play control, text reading and webpage rolling. The invention is convenient for use and has high accuracy, thereby being capable of bringing great convenience for the lives of the handicapped.

Center-of-gravity tilt-in-space wheelchair

A center-of-gravity tilt-in-space wheelchair includes a base, a seat for supporting an occupant, and tracks supporting the seat for selective seat movement relative to the base. Wheels are adapted to support the base relative to a supporting surface. The tracks serve as rolling or sliding surfaces that allow the seat to rotate with respect to the base. Each track has a constant-radius arc with a focal point that is adapted to be coincident with the center of gravity of the wheelchair occupant. A low-friction supports the base relative to the seat. The low-friction support may include low friction elements that mate with the tracks to support for the tracks. The support can be adjustable to permit the overall tilt angle range of the tracks to be adjusted. The wheelchair seat can be adjusted to maintain the focal point of the constant-radius arc of the tracks coincident with the center of gravity of the wheelchair occupant. The front and rear wheels can be adjusted fore and aft relative to the focal point. A coupling includes plates having upper ends operatively attached to one another with seat canes therebetween and lower ends releasably attached relative to the side tubes. The lower ends can be movable in a longitudinal direction relative to the side tubes while remaining operatively connected to the side tubes. A base frame can include side frames having an offset at a front end and a caster housing supported by the offset. The offset is directed up to minimize the height of the side frames and down to maximize the height.

Novel multifunctional wheelchair bed

InactiveCN102551973ASolve the problem of difficulty going outReduce the intensity of careWheelchairs/patient conveyanceNursing bedsWheelchairEngineering
Disclosed is a novel multifunctional wheelchair bed. A bed body and a wheelchair are combined to form the novel multifunctional wheelchair bed, and the bed body comprises a bed frame, bed plates, roller struts and electric push rods. The bed plates comprise seven plates which include side plates and a top plate and form a door-shaped structure, the wheelchair comprises a base, front wheels, rear wheels, a motor, a battery, a wheelchair backrest plate, a seat plate, a shank plate, a pedal plate, base electric push rods, wheelchair backrest electric push rods, an arc-shaped connecting rod, a wheelchair seat electric push rod, a left armrest, a right armrest and a control portion, the control portion comprises an operating lever and a button which are respectively arranged on the left armrest and the right armrest, assembling round rods of the wheelchair rectangular bed plates are respectively inserted into assembling round tubes of the seven plates, which form the door-shaped structure,of the bed body, and then the wheelchair and the bed body can be integrally combined to form a total bed surface. The novel multifunctional wheelchair bed has the advantages that the wheelchair stands by means of driving the electric push rods, the wheelchair with the standing function is combined with the bed body, a patient or an old person can independently control and complete combination andseparation of the wheelchair and the bed body, and functions of the wheelchair and functions of the bed body can be switched.
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