An improved positioning device (the DEVICE) comprises a new and unique concave angulated device for at least one of, but not limited to, stretching, supporting, bracing, rehabilitating, positioning, massaging, kneading, scratching, or exercising a body of a user. The DEVICE's new concave angulated and more user friendly surface addresses the need for a more anatomically responsive body positioning DEVICE for achieving improved results relative to, among other things, the above uses. This DEVICE includes multiple embodiments, which also may comprise various possible configurations, that enable the DEVICE to also function as a fulcrum or lever and/or be capable of uniquely dispersing a load during the interaction between the user and the DEVICE.

A wheelchair cushion comprises a dual stiffness fluid. A cushion also comprises an ability to adjust fluid volume.

A support element, for example a plate, a mattress, a pillow, a seating plane of a chair, of an armchair, a saddle for vehicles and the like, equipped with a resting surface for a user, includes at least one first layer in gel associated with at least one second layer of different material; such a first layer in gel and such a second layer, that are associated, are crossed by through openings that are suitable for the proper circulation of air from one side to the other of the support element, so as to allow the optimal transpiration and thermal regulation of the parts of the body of the user positioned resting on the support element itself.

A patient support system for a wheelchair is provided. At least a portion of the patient support system components form a no-air-loss patient support surface. At least one fluid pump can supply air pressure to a plurality of no-air-loss air cells, and at least one pressure release valve can release air pressure from the no-air-loss air cells. A computer can compare air pressure within the air cells to a desired air pressure set point and can modulate the air pressure by actuating the at least one fluid pump and/or the at least one pressure release valve to bring the air pressure within the air cells to a desired air pressure. After the initial air pressure adjustments are made and the desired air pressure is achieved, no further adjustments during the operation are able to be made by the computer so that the patient positioned thereon the patient support system will not be moved by the patient support system during an operation.

A seat for a mobility device accommodating flexibility, personalized comfort, and transportability. The seat can include a button push means to enable movement of a height-adjustable armrest. The seat back can fold upon the seat for transportability. The seat cushion and armrest cushion can be removably mounted and separately replaceable. The seat can be mounted upon various types of devices, including, but not limited to, wheelchairs.

A positioning device which includes a new and unique concave angulated device for at least one of, but not limited to, stretching, supporting, bracing, rehabilitating, positioning, massaging, kneading, scratching, or exercising a body of a user. The device's new concave angulated and more user friendly surface addresses the need for a more anatomically responsive body positioning device for achieving improved results relative to, among other things, the above uses. This device includes multiple embodiments, which also may comprise various possible configurations, that enable the device to also function as a fulcrum or lever and/or be capable of uniquely dispersing a load during the interaction between the user and the device.

A seat assembly for a conveyance, such as a wheelchair, that allows the user to set the recline angle of the seat back at a seating position, fold the seat back down to a folded position and back up to the seating position, such that the seat back is returned to the seating position at the user selected recline angle R unless the recline angle is adjusted by the user. The user selected recline angle R is not disturbed by folding the seat back from the seating position, to the folded position 106, and back to the seating position.

A cushion has at least one fluid chamber and at least one cushion conduit to enable fluid to be added to or removed from the at least one fluid chamber of the cushion. A management system for the cushion has a pressure sensor to measure a pressure of fluid in the at least one fluid chamber of the cushion and to transmit a sensor report with the measured pressure, a tube having a first end connecting to the cushion conduit, a second end leading to the pressure sensor, and a valve to enable fluid to be added to or removed from the at least one fluid chamber of the cushion through the cushion conduit and a processor to receive the sensor report, determine a pressure value of the at least one fluid chamber of the cushion based on the measured pressure in the sensor report, and generate a status indicative of the pressure value of the fluid chamber of the cushion.

Multi-layer cushion supports are described which may generally comprise a first support having a first contact surface for contacting a portion of a body and a second surface opposite to the first surface, the first support defining a central chamber and a peripheral chamber surrounding the central chamber, wherein the first support is filled with a first gas or liquid and a second support attached to the first support along the first contact surface. The second support may be filled with a second gas or liquid which is relatively more viscous than the first gas or liquid. In particular, the first support may be filled with a volume of air and the second support may be filled with oil which is less than the volume of air.

A cushion has at least one fluid chamber and at least one cushion conduit to enable fluid to be added to or removed from the at least one fluid chamber of the cushion. A management system for the cushion has a pressure sensor to measure a pressure of fluid in the at least one fluid chamber of the cushion and to transmit a sensor report with the measured pressure, a tube having a first end connecting to the cushion conduit, a second end leading to the pressure sensor, and a valve to enable fluid to be added to or removed from the at least one fluid chamber of the cushion through the cushion conduit and a processor to receive the sensor report, determine a pressure value of the at least one fluid chamber of the cushion based on the measured pressure in the sensor report, and generate a status indicative of the pressure value of the fluid chamber of the cushion.