An extendable cushion assembly includes a cushion that is movable between an extended state and a retracted state, and a base upon which the cushion is removably coupled. The base is movable between an extended state and a retracted state. When the cushion is coupled to the base and when the base adopts the extended state or the retracted state the cushion is configured to adopt the extended or the retracted state respectively.

The invention relates to the field of wheelchairs and has been designed for the measurement of parameters for the adjustment of a seated position of the user. It relates to a device for the simulation of a seated position in a wheelchair, which includes a seat backrest (1) adjustable horizontally, vertically and during its reclination, two side seat pans (27) with armrests (3) with adjustable distance, a foldable seat pan (2) with adjustable reclination, two wheels (4) with adjustable horizontal and vertical position, and a footrest (5) with adjustable vertical position and its reclination, at least one electric motor or an electric piston (15) for the adjustment of the position of the adjustable components, an electronic circuit with special software for the control of the motors and the display of the measurements, as well as a virtual reality software. With this device, it is possible to measure the adjustment parameters for the seated position of a wheelchair user automatically and digitally by means of a software which is installed in the simulation device.

A wheelchair comprises a base assembly and a tilt assembly supported on the base assembly. The base assembly has a wheelbase and a wheel track. Each of the wheelbase and wheel track is independently adjustable. The tilt assembly is unchanged when either the wheelbase or wheel track is adjusted.

Wheelchair designs and enhancements are provided for use with conventional wheelchair design. The designs and enhancements include bariatric extension panels and security features making it suitable for use in high security areas such as prisons and psychiatric wards.

A seat assembly for wheelchair of the type having a structure expandable from a contracted condition to an expanded position comprises a pair of tubular members connected to the structure. Each tubular member has a main tubular body, a secondary tubular body parallel to and inside the main tubular body, and an elongated slit extending along both the main tubular body and the secondary tubular body and common to both the main tubular body and the secondary tubular body. The slits open into an inner channel of the secondary tubular body. The main tubular body and the secondary tubular body form a hollow integral piece of composite material. A panel, e.g., of non-rigid material has rods on its opposite edges, the rods having a diameter smaller than that of the secondary tube and larger than a width of the slit to be held captive in the secondary tube, whereby the panel extends through the slit.

An adjustable wheelchair for ready assembly in accordance with embodiments of the invention are disclosed. In one embodiment, the wheelchair includes, an undercarriage including, a horizontal axle including a first end segment telescopically coupled to a body segment and a second end segment telescopically coupled to the body segment opposite the first end segment allowing for adjustment of the wheelchair width, and a tongue including a body segment telescopically coupled to an end segment allowing for adjustment of the wheelchair length, and a seat post including an end segment telescopically coupled to a body segment allowing for adjusting the wheelchair seat height; and a pair of wheels; and a swivel wheel coupled to the tongue of the undercarriage to support the wheelchair and provide mobility; and a seat bottom coupled to the end segment of the seat post for load-bearing support; and a seatback rotatably coupled to the seat bottom.

A wheelchair frame comprises a base frame having a geometry that is structured and configured to be adjustable about a fixed pivot, wherein the base frame comprises a central frame and frame component that are adjustable via an angular adjustment.

An assistive wheelchair that provides stand-up capability, vertical height adjustment while seated, and independent toileting is disclosed. The assistive wheelchair includes a verticalization system to move the user from a sitting to a more vertical position by tilting the while maintaining the proper center of gravity through the use of actuators and multi-bar linkages. The verticalization system also allows the seat to move up and down without modifying its tilt angle in order to change the height of the seat. An opening system provides for transversal movement of the wheels, to increase the width of the base of the wheelchair in order to create a space wide enough between the wheels to fit over a lavatory. A trap door seat is also provided that is lowered and moved from under the wheelchair to provide an opening in the wheelchair main seat during toileting.

A folding wheelchair is disclosed having a frame with two side portions, a seat and a folding mechanism. The folding mechanism has coupling connections, pivoting connections and a cross-strut with two bars crossing at a pivot point. First ends of each of the cross-strut bars are mounted rotatably on the side portions of the frame via the pivoting connections. Second ends of each of the cross-strut bars are releasably mounted on the other of the two side portions of the frame via the coupling connections. A distance between the frame side portions may be modified if the cross-strut bars second ends are released from the frame side portions. The cross-strut bars are pivoted relative to each other about the pivot point. The cross-strut extends from the first ends to the second ends of the bars in a cross-strut direction which, in the operating position, extends substantially along the seat.

An adjustable chair assembly comprising a frame, a seat assembly, a back assembly and at least one of a seat space-filling element and a back space-filling element. The seat assembly extends along a seat plane and comprises a first seat element and a second seat element adjustably positionable with respect to one another along the seat plane and together defining a support surface of the seat assembly. The back assembly extends along a back plane and comprises a first back element and a second back element adjustably positionable with respect to one another along the back plane and together defining a support surface of the back assembly. A central gap is defined in at least one of the support surfaces and the at least one of the seat space-filling element and the back space-filling element is removably insertable in the central gap of the corresponding support surface.