6066 results about "Wheelchair" patented technology

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.

A computer workstation mounting device is provided which permits devices to be accessed by operators in a variety of positions including sitting, standing, or from a wheelchair. The invention permits said devices to be moved in a wide variety of vertical, horizontal, and rotational ranges of motion, and permits the devices to be moved clear of the work area while performing other tasks, or safely moved to a position near the ceiling for security or additional workspace conservation. The invention uses a simple, low maintenance counterweight principle for its vertical travel. It also possesses a simple tilt and swivel mechanism, swivel bracket (32), and dual parallelogram arm assembly for its horizontal and rotational ranges of motion. The invention also incorporates the counterweight principle for maintaining the data cables (14) in an organized, aesthetically pleasing manner without loops or kinks through all ranges of motion. Additionally provided is a friction lock (124) for stability of the monitor arm assembly in its vertical travel. Provision for the central processing unit (58) to be mounted atop the column (38) increases computer security.

A wheelchair suspension having plurality of pivoting linkages to lift and retract a front castor assembly to facilitate traversing an obstacle or rough terrain. In this regard, a wheelchair suspension having a frame member and at least one a pivoting assembly is provided. The pivoting assembly has, for example, a first linkage pivotally coupled to the frame member and a second linkage pivotally coupled to the frame member. At least one front caster assembly is coupled to the first and second linkages wherein upward pivotal movement of the first linkage causes the caster assembly to undergo upward vertical movement and upward pivotal movement of the second linkage causes the caster assembly to undergo lateral movement inward toward the wheelchair.

An improved portable patient transfer device comprising a small wheeled base having a vertically disposed telescoping lifting column extending upwardly therefrom. A patient support means extends from the column to support the patient. A crank, accessible to both patient and attendant, is used to raise and lower the lifting column for transfer between surfaces with different heights, such as beds, wheelchairs, and car seats. The lift my be closed and temporarily attached to a wheelchair for convenient transport with a patient. The lift is small and lightweight and may be easily transported and stored. The lift is further economical to manufacture.

A wheelchair has a base and a plurality of wheels supporting the base on a supporting surface. At least one of the wheels is a driven wheel. One of the wheels may be a non-driven wheel. One or more of the wheels, driven or non-driven, is adapted to be steered. In a preferred embodiment of the invention, all of the wheels are driven and steered independently of one another. The wheelchair also has a seat that is mounted for movement relative to the base. Movement of the seat is preferably controlled independently of the steering direction of the wheels. The wheelchair may further include one or more sensors for controlling the stability of the wheelchair. These sensors may include wheel position sensors, speed sensors, rate-of-turn sensors, accelerometers, and proximity detectors. Such sensors would be useful in controlling the tracking of the wheelchair, avoiding the occurrence of tipping and tilting, and avoiding impact with obstacles.

A pivoting side mount (26) which may used, for example, to attach a pelvic stabilization device (21) to a wheelchair. The pivoting side mount (26) includes first and second pivot brackets (152, 150) that are rotatably connected to one another and a spring (154), such as a rubber spring, for limiting the rotating movement of the two brackets relative to one another. A quick release assembly (28) is also provided. The quick release assembly (28) includes a receiver (30) and a body (40) that fits into the receiver. The body (40) includes one or more latches (42) that are biased outward and that snap into notches (44) in the receiver (30) when the body (40) is placed in the receiver (30). A release plate (46) is provided for releasing the latch or latches (42) from the notches (44).

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.

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.

An apparatus and process for empowering those in wheelchairs and others with loss of limb control to walk, climb stairs, sit in ordinary chairs, use normal bathroom facilities and stand at normal height with their peers. It also provides a means to speed rehabilitation of the injured and a means to deliver more comfortable and effective prostheses while providing superior physical therapy without draining professional resources which includes new simulation and training means. Most of the apparatus is worn under normal clothing allowing them to enjoy a normal appearance. Additional advancements include improved actuator design, user interface, visual means and advanced responsive virtual reality.

The present invention relates to a mobility aiding device, such as a walker, a wheelchair, a transport chair, a shower seat or a rollator, for use in providing support to injured or ailing persons during activity or movement. According to the present invention a solid two-piece seating platform is provided with a structural support for distributing the weight of the user to the frame. Furthermore, the two pieces of the seating platform are inter-hinged, enabling the entire device to fold up into a storage position. A lock is provided for maintaining the structural support in place, and a handle is provided for facilitating folding the device into the storage position.

A system for locating and retrieving objects of a variety of sizes, shapes, weights, positions and orientations is disclosed. The system comprises a robot arm, a control computer, a gripper, an operating sequence, a set of objects and a set of machine-readable or bar code labels mounted on said objects, and a scanner. The system locates a requested object, calculates its position and moves the gripper into position for pickup. Alternate embodiments include mounting on a wheelchair and use in medical, dental, library and stockpicking environments.

A motorized wheel-chair is equipped with one or more sensors for detecting obstacles. The detection method may be either radar or sonar (or both). An on-board computer processes these echoes and presents a visual or auditory display. With the benefit of these displays, the user issues voice commands (or exerts manual pressure) to maneuver appropriately the motorized wheelchair. One or more microphones pick up the sounds of the user's voice and transmit them to a computer. The computer decodes the maneuvering commands by speech-recognition techniques and transmits these commands to the wheelchair to effect the desired motion. In addition to speech recognition for decoding commands, voice (speaker) recognition is employed to determine authorized users.

A wheelchair navigation system having motorized wheelchair which is powered by at least one onboard battery, and a battery charger. The navigation system also has a filter-based estimator with interface software running that is operated on an onboard laptop computer. Dual cameras, proximity sensors, microphones, and rotation sensors for the wheels are mounted to the wheelchair. Small markers are placed on the walls of a location or room. The navigation system uses the proximity sensors, rotation sensors and cameras in conjunction with the specialized software to determine where objects or impediments are located in the room and thereby redirect the path of the wheelchair so as to avoid such objects. The wheelchair is walked through the marked location thereby ‘teaching’ various paths which are recorded in the computer and recalled later when the wheelchair is in use.

“Smartmat” (Smartmat Area Activity Monitor and Personnel Identification System) monitors and identifies people, animals and other objects that pass through a control volume. Among other attributes, the exemplary system implementation can count, classify and identify objects, such as pedestrians, animals, bicycles, wheelchairs, vehicles, rollerbladers and other objects, either singly or in groups. Exemplary Smartmat implementations differentiate objects based on weight, footprint and floor/wall pressure patterns such as footfall patterns of pedestrians and other patterns. The system may be applied to security monitoring, physical activity monitoring, market traffic surveys and other traffic surveys, security checkpoint/gate monitoring, traffic light activation and other device activation such as security cameras, and other monitoring applications. Smartmat may be portable or permanently installed.

A mid-wheel drive power wheelchair for use by handicapped and disabled persons is provided having a frame, a seat supported by the frame, a pair of drive wheels supported on the frame under the seat, drive means for causing rotation of the drive wheels, power means for supplying power to the drive means, a rearward idler wheel, a forward anti-tip device and a resilient suspension supporting the forward anti-tip device, the suspension being attached to the drive means rearward of the front portion of the frame.

A modular standing frame is described herein. The modular standing frame has a chair module adapted to raise and lower a user between sitting and standing postures without inducing shear between the user and the seat and seat back of the chair module. The chair module may be selectively coupled to one of a glider module adapted to provide walking-type exercise to a standing user, a workstation module that provides a work surface for a sitting or standing user, and a mobility module that allows the standing frame to be moved about by a user much like a wheel chair.

A robust multi-wall tray which is easily retrofitable to a wheelchair. Due to the structural design, the tray is lightweight but yet more rigid than conventional solid wheelchair trays. The multi-wall tray can be secured to a wheelchair with conventional means or with several novel means that provide a smooth work surface free of screws or Velcro™. A novel prior art adjustable tray support structure can also be integrated into the multi-wall tray to allow the system to mount robustly to the frame of a wheelchair and also allow the tray to fold away to the side of the wheelchair when not in use. Additionally, the multi-wall tray can have a sealed perimeter to create an enclosure for protecting electronic devices. The design can support electronic devices for computer assisted living while also providing a tray work surface for reading, writing or eating.

An apparatus for climbing and descending stairs or other obstacles has three flexibly connected sections and a pair of crawler belt systems on opposite sides of the unit. Each of the crawler belt systems comprised of three crawler belts are driven by one of a pair of motors that directly drives a pinion that engages two of the crawler belts, one of which then drives the last crawler belt through another pinion. The stair-climbing apparatus also includes a mounting platform for coupling a carrier device such as a wheelchair or a box. In order to provide cushioning and stability for movements from a horizontal surface to an inclined surface and vice versa, shock absorbers are provided between the three sections. A linear actuator is also provided to provide stabilization as well as the ability to raise and lower both the stair-climbing crawler unit as well as the wheelchair, providing three modes of operation including manually wheel driven mode, motor wheel driven mode, and motor crawler driven mode.

A wheelchair has a primary articulated member and at least one secondary articulated member, a primary sensor for detecting the position of the primary member, a secondary sensor for detecting the position of the secondary member, and a controller capable of articulating the secondary articulated member as a function of the movement of the primary articulated member.

The disclosed invention is a patient monitoring system that employs a pressure sensitive pad. The pad is placed beneath a patient who is lying in bed or sitting in a chair. When weight is removed from the pad, an alarm is given. The pad comprises an upper layer of circuitry and a lower layer of circuitry. When the respective layers of circuitry are in contact, the alarm remains off, but when the layers of circuitry become separated, the alarm is given. This invention is generally for use in hospitals and nursing homes to alert caregivers when a patient falls out of a bed or a wheelchair; or if a patient otherwise leaves a bed or chair against the wishes of the caregiver. This situation is of special concern with elderly patients, post operational patients, and/or at night when nursing staffs are reduced.

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.

A lightweight, foldable device for the partial weight bearing during walking and gait training is provided. The lightweight, partial weight bearing suspension walker is made from two frames that are pivotally attached and can be folded at the pivot point for storage or transport. The apparatus can be adjusted to fit over wide treadmills or wheelchairs and through narrow doors. The apparatus includes two fail-safe lift and support devices to insure patient safety in case of unintentional release by the operator.