The invention provides an overlay configured to substantially conform to a contoured surface. The overlay comprises at least a first layer having a rear surface on which a plurality of channels are located. Optionally, the overlay also comprises one or more removable contouring members, which are located between adjacent channels on the rear surface of the overlay.

A pressure redistribution system, including: a chair having a frame; a back cushion inflation system operatively connected to an upper portion of the frame, wherein the back cushion inflation system includes a back cushion and a plurality of back cushion air bladders located within an opening in the back cushion; a pump system operatively connected to the back cushion inflation system for inflating and deflating the back cushion air bladders; a seat cushion sensor system operatively attached to the wheelchair frame and the pump system, wherein the seat cushion sensor system includes a seat cushion and a plurality of seat cushion air bladders located within an opening in the seat cushion and a plurality of load sensors located adjacent to the plurality of seat cushion air bladders and wherein the pump system is able to inflate and deflate the plurality of seat cushion air bladders; a light display operatively connected to the back cushion inflation system, wherein the light display provides a visual indication as to a pressure being experienced by each of the plurality of load sensors; and a microcontroller located adjacent to the pump system, the seat cushion sensor system and the light display to assist in a determination of the pressure being experienced by each of the plurality of load sensors and to assist in providing the visual indication as to a pressure being experienced by each of the plurality of load sensors.

The invention provides a contouring system configured to be modified to provide a support surface, such as a backrest, seat base, or mattress, having contours to suit the needs of its user.

An adjustable chair support system includes a first seat back support member spaced from a second seat back support member, and a seat back tensioning assembly that extends between the first and second seat back support members. The seat back tensioning assembly includes a carrier coupled to the first seat back support member, the carrier including an adjustable tension member and a first guide member, a pair of second guide members coupled to the second seat back support member, and a cable extending from the adjustable tension member into engagement with one of the pair of second guide members, with the first guide member, with the other of the pair of second guide members, and then returning to the adjustable tension member.

The present application provides a collapsible wheelchair, including a front support frame, a backrest bracket, a rear support frame and a bracket connecting rod, which are hinged with each other to form a first connecting rod mechanism; the seat connecting rod is hinged with the front support frame and a seat bracket respectively; the front support frame, the backrest bracket, the seat bracket and the seat connecting rod form a second connecting rod mechanism; a hinge point of the backrest bracket and the seat bracket is located above a central plane of the seat bracket.

A posture support system for a person supporting appliance comprising: a module (300), each module (300) comprising: an expandable body (20), means (60) for changing the degree of expansion of the expandable body (20); a sensor (27) configured to produce measurement data corresponding to the degree of expansion of the expandable body (2); a processor (116) arranged to process the measurement data generated from the sensor (27); and a wireless communication unit (114) arranged to transmit the measurement data wirelessly to a controller (320) and receive control data to control the degree of expansion of the expandable body (20).

A wheelchair seat cushion comprises a back pad module and a seat pad module which is connected with the back pad module. A resilient intermediate layer is provided within the back pad module and the seat pad module. A heat generating device is provided within in the resilient intermediate layer, wherein the heat generating device is positioned corresponding to at least one acupuncture point of a back of a user, and heat generated by the heat generating device is conducted to a body of the user via the at least one acupuncture point in order to keep the body of the user warm.

A technique for capturing a three-dimensional digital image of a customized shape for a wheelchair seat and back and subsequently producing a seat and back from the image. The captured image may include one or more datum points therein to provide a reference plane for the seat and back. The datum points may be in a color-coded layer located relative to the bottom edge of the seat. The color code may indicate the size of the user and seat at a coarse level. The customized shape may be captured from a shape capture bag or bags that capture one or both of the shape of the user's back and bottom. The shape capture bag used to capture the shape of the user's bottom, for use in manufacturing the seat, may be enhanced by a pre-formed layer that contains a contour or one or more components that together form a contour that biases the shape capture bag toward the shape of the user's bottom when gravity is acting upon the user to sink into a cushioned seat.

An adjustable chair support system includes a first seat back support member spaced from a second seat back support member, and a seat back tensioning assembly that extends between the first and second seat back support members. The seat back tensioning assembly includes a carrier coupled to the first seat back support member, the carrier including an adjustable tension member and a first guide member, a pair of second guide members coupled to the second seat back support member, and a cable extending from the adjustable tension member into engagement with one of the pair of second guide members, with the first guide member, with the other of the pair of second guide members, and then returning to the adjustable tension member.

The invention relates to a postural support bracket for attaching to at least one postural support. The bracket is adapted to allow the postural support to adopt a variety of different positions, including positions in which the postural support is tilted. In one embodiment, the postural support bracket comprises a hinged region that when attached to one or more postural supports, allows the postural support to adopt a variety of different angles.