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.

The present disclosure includes methods of operating a wheelchair configured to reposition an occupant between a lowered and a raised position. The wheelchair can include a frame, a seat moveable relative to the frame, a drive wheel, one or more pairs of arm assemblies, and one or more sensors. The arm assembly includes a wheel configured to move from a first spatial location when the wheelchair is operating on flat, level ground to a second spatial location that is different than the first spatial location. Arm limiters can selectively engage the arm assembly based on at least one of a seat position, position of the arm assembly, and surface conditions of ground surface. The arm limiters can limit the range of motion of the arm assembly and sometimes other operational aspects of the chair. The methods adjust the maximum operational speed of the wheelchair when the seat is in an elevated position based on sensor data relating to one or more of the arm limiter position and the position of the frame.

A system for use with a mobile device includes at least one sensor to sense a variable related to tilting of the mobile device and at least one activatable system in operative connection with the sensor. The at least one activatable system increases stability of the mobile device upon actuation/change in state thereof on the basis of data measured by the at least one sensor. A variable related to tilting includes variables that indicate concurrent, actual tilting as described herein as well as variables predictive of imminent tilting. Activatable systems hereof change state upon actuation or activation to increase stability of the mobile device by reducing, eliminating or preventing tilting.

A wheelchair system includes a wheelchair including a plurality of force sensors including at least three force sensors. A rigid seat pan is placed in contact with each the plurality of force sensors at a different position on the rigid seat pan so that the rigid seat pan does not contact the frame and forces on the rigid seat pan are transferred to the plurality of force sensors. Each of the plurality of force sensors is in communicative connection with a processor system. A memory system is in communicative connection and an interface system is in connection with the processor system and a user interface system in communicative connection with the processor system. Instructions stored on the memory system are executable by the processor system to determine a value of a variable related to a distribution of force on the rigid seat pan over time.

A motorized lifting and transfer chair includes a base having a front portion and an opposing rear portion, where the rear portion has a pair of foot rests. The chair also includes a plurality of wheels mounted to the base configured to be selectively locked, and a vertical post assembly secured proximate to the rear portion of the base and extending upwards from the base. In addition, the chair includes a seating platform cantilevered from the vertical post assembly, where the seating platform comprises two portions with an aperture formed along two adjacent edges of the two portions and the two portions are configured to swing open and closed about the vertical post assembly. The chair includes a motorized device that raises and lowers the seating platform, and a latch is configured to secure the two portions of the seating platform closed.

A seat apparatus for facilitating movement of a user from a sitting position to a standing position is provided. The seat apparatus includes a main body having a bottom surface, a back wall and a pair of lateral walls which are connected together and define a recessed region configured for sitting in. The main body further includes a seat projection extending upwardly from the bottom surface, between the lateral walls, whereby the seat projection is shaped and adapted to maintain thighs of a user separated on either side thereof. The seat apparatus also comprises a base provided below the main body and adapted to cooperate therewith. At least one of the base and main body has a convex and curved cross-sectional profile adapted to allow the apparatus to pivot about at least one axis in order to tilt the main body forward and urge a user in the standing position.

Disclosed is a footrest assembly for use with a wheelchair. The footrest assembly includes a platform, and a plurality of strap fasteners. The platform is configured to support the feet of a wheelchair occupant. The platform includes a top surface that includes a female strip with a plurality of hooks. The wheelchair includes a male strip with a plurality of loops placed under a seat of the wheelchair. The plurality of hooks and the plurality of loops are removably latch onto one another when the female strip and the male strip are pressed together. Each of the strap fasteners having a plurality of proximal ends detachably attached with a vertical frame of the wheelchair, and a plurality of distal ends detachably attached with the platform to hold the platform above a ground surface.

A medical chair includes a base, a seat section, and a leg rest pivotally mounted relative to the seat and adapted to move between an extended position and a retracted position. The chair further includes a scissor mechanism coupled to the leg rest to extend and contract the leg rest and an actuator mounted on one end relative to the seat section and having an extendible driving end coupled to the leg rest wherein when the extendible driving end extends the extendible driving end pivots the leg rest about the pivot axis and extends the scissor mechanism.

A medical chair includes a base, a seat section, and a leg rest pivotally mounted relative to the seat and adapted to move between an extended position and a retracted position. The chair further includes a scissor mechanism coupled to the leg rest to extend and contract the leg rest and an actuator mounted on one end relative to the seat section and having an extendible driving end coupled to the leg rest wherein when the extendible driving end extends the extendible driving end pivots the leg rest about the pivot axis and extends the scissor mechanism.

A wheelchair for supporting a user, and for providing movement of the user's arm has a wheelchair body supported by wheels for supporting the user for rolling movement, an armrest for supporting the user's arm thereupon, and a movable mounting mechanism for mounting the armrest on the wheelchair body so that the armrest can move between a first position and a second position. A movement mechanism moves the armrest between the first and second positions.