A patient transport apparatus for transporting a patient. A seat section is pivotably coupled to a support structure about a seat axis. A front wheel is operatively attached to a front strut of the support structure, and a carrier is arranged for movement relative to the support. The carrier includes a shaft defining a wheel axis, a rear wheel supported for rotation about the wheel axis, a track having a belt, and a hub supporting the shaft and the track for concurrent pivoting movement about a hub axis defined by a upright of the support structure. The hub axis extends through a plane intersecting the seat axis, fixed relative to the upright, and defining opposing first and second sides. Movement of the carrier from a chair configuration to a stair configuration simultaneously deploys the track and moves the wheel axis from the first side to the second side.

The present invention relates to a wheelchair that includes a base frame having robotic legs and a seat assembly. A pair of armrests include at least one control stick and an electronic display for operating the wheelchair. A motor receives power from rechargeable batteries and extends or retracts the robotic legs. The legs have big wheels and small wheels that assists in movement of the wheelchair, including ascending and descending a staircase. The small wheels can be raised or lowered as per requirements automatically by the motor using a sensor or manually using the control stick. The wheelchair can be operated remotely using a handheld remote-control device enabling a caretaker to remotely activate and maneuver the wheelchair. The wheelchair enables individuals who use wheelchairs to remain independent even in traditionally non-accessible spaces and offers a way for disabled, elderly, and sick individuals to retain their independence.

A support device includes a wheel, a base member, a leg coupled to the wheel and the base member, the leg including an upper leg segment, a lower leg segment positioned below the upper leg segment, a joint positioned between the upper leg segment and the lower leg segment, the joint including a cam defining a non-circular perimeter, and an actuator coupled to one of the upper leg segment and the lower leg segment, the actuator including an engagement member that is engaged with the non-circular perimeter of the of the cam of the joint, where the actuator selectively moves the engagement member to move the cam and the upper leg segment and the lower leg segment about the joint.

The present invention discloses a driving device capable of walking and stair-climbing by electric power which adopts a combination of a walking mechanism and a climbing carrier to create inventive planetary gear transmission principles. When walking on a flat ground, a driving part drives a sun gear to rotate in a positive direction, two walking wheels are in contact with the ground at the same time, the sun gear drives a planet gear to rotate in a negative direction around a planet shaft, and inner teeth and outer teeth of a gear ring rotate in the negative direction synchronously with the planet gear, thereby a transmission gear drives the walking wheel to rotate in the positive direction to realize rotation of walking. When climbing stairs, the sun gear rotates in the positive direction, the walking wheel is obstructed by stair, the transmission gear, the inner and outer teeth of the gear ring stop rotating, and the sun gear drives the planet gear to revolute along the inner teeth in the positive direction, thereby the planet shaft drives the climbing carrier to rotate in the positive direction to realize climbing cross obstacles. Thus, the present invention solves the problem of the known planetary wheel structure that the climbing carrier is driven to rotate in opposite direction when the walking wheel cannot rotate such and thus is difficult to realize the function of stair-climbing, and has advantages of simple structure and safe and reliable use.

A patient transport apparatus for transporting patients in a stair configuration and in a chair configuration. A multiple mode handle assembly is provided for user engagement, and is movable between a first handle configuration, a second handle configuration, and a third handle configuration.

A stair chair for use in transporting a patient in a seated position along stairs comprising a base, an upright coupled to the base, and a track assembly extending from the base for traversing stairs. A seat section is operatively attached to the upright and arranged for movement relative to the base between a plurality of vertical configurations including a first vertical configuration where the seat section is spaced from the base at a first distance for supporting the patient in the seated position, and a second vertical configuration where the seat section is spaced from the base at a second distance greater than the first distance. A lift mechanism is interposed between the base and the seat section to move the seat section between the plurality of vertical configurations. The lift mechanism moves the seat section to facilitate transitioning the patient to a standing position from the seated position.

The stair-climbing wheeled carrier has a U-shaped frame defined by a pair of elongated parallel handles and a crossbeam extending between the ends of the handles. Each handle has an axle mount depending therefrom having a star wheel or spider wheel mounted thereon. A dual shaft worm drive motor is mounted on the frame, the shafts driving chain drives connected to the wheels. A throttle extends from one of the handles, and controls leaf springs that operate switches for actuating the reversible motor and returning the throttle to neutral when released. A payload is attached to brackets mounted on the handles. The payload may be a seat for a person needing assistance attending/descending stairs, or a basket for carrying packages or other items upstairs. In use, an assistant uses the handles to support the frame while operating the motor to activate the wheels for climbing stairs.

A mobile patient support chair to assist in bathing of a patient by a carer with little or no upper body strength comprises a chair pivotally mounted in a support frame comprised of four legs each ending in a wheel. The chair frame comprises groups of support panels which can be locked in support positions and rotated through 90 degrees to provide access to the patient's legs, buttocks and back. Additionally the chair is balanced to allow easy rotation into a fully backwards lying position, and a fully forward lying position. In the fully forward lying position flexible retaining strips are placed across the patient to retain them in place. Additionally the wheels may be step-climbing wheels to assist in climbing small steps found in bathroom entrances and shower cubicles.

A travelling apparatus having a high travelling performance with a simple structure is provided. A travelling apparatus according to an embodiment includes: a frame; front wheels disposed in a front of the frame; first links configured to be extendable and retractable and coupled between the front wheels and an oscillation axis located in a rear of the front wheels; and first linear motion mechanisms that are coupled between the frame and the first links and are extended and retracted so as to rotate the first links about the oscillation axis.

A support device includes a wheel, a base member, a leg coupled to the wheel and the base member, the leg including an upper leg segment, a lower leg segment positioned below the upper leg segment, a joint positioned between the upper leg segment and the lower leg segment, and an actuator engaged with the upper leg segment and the lower leg segment, where the actuator includes a linear engagement member that is engaged with one of the upper leg segment and the lower leg segment, a cammed member defining a non-circular perimeter engaged with the linear engagement member, and a motor engaged with the linear engagement member through the cammed member.