Abstract: A system includes a client application executed by a client computing device for setting up an inflation level and checking an inflation level of an inflatable cushion having at least one air cell or zone and at least one pressure sensor within the cushion that detects air pressure. The client computing device communicates with the inflatable cushion and determines an optimal inflation level for a user of the inflatable cushion.

Abstract: The present disclosure generally relates to a manifold valve assembly engaged to an inflatable apparatus, such as a cushion to prevent pressure ulcers, for example. The manifold valve assembly is also in communication with a processing device to determine an optimal immersion level for a user seated on the inflatable apparatus. Additionally the processing device, in communication with the manifold valve assembly may save optimal immersion or air pressure levels for comparison to future checks of cushion pressure and send that to a user interface at the processing device. The assembly and processing device may also save and dis play a history of pressure checks.

Abstract: An adjustment apparatus for a wheelchair back that can be used with various backs, that can be adjusted in a plurality of ways using a single adjustment point, and that can be adjusted without the use of tools. In another aspect, includes a support mechanism for mounting an adjustment apparatus for a wheelchair back that can be engaged using gravity, that provides at least one support point, and that can be utilized without the use of tools. Still another aspect of the wheelchair back assembly includes a mounting clamp that is simple in construction, that provides at least one support point, and that can be easily disassembled and adjusted to accommodate upright frame members of various diameters without the use of a tool.

Abstract: A mounting clamp assembly that provides at least one support point for a wheelchair back mounting assembly, the mounting clamp assembly includes a clamp block and threaded clamp fastener extending through the clamp block and engaging a support by which the mounting clamp can be secured to a wheelchair cane; the mounting clamp assembly can be easily disassembled and adjusted to accommodate upright frame members of various diameters without the use of a tool.

Abstract: A system for attaching a wheelchair back to wheelchair posts comprising a bracket and interchangeable attachment hardware secured to the bracket. In one aspect the bracket can be adjusted vertically relative to the wheelchair back and can be adjusted on a horizontal path. In one aspect, the angular orientation of the attachment hardware can be adjusted to adjust the angular position of the wheelchair back relative to the wheelchair seat and posts. In one aspect the attachment hardware is represented by a hanger assembly. In one aspect the attachment hardware is represented by an expansion plug assembly for insertion into the open tubular end of a wheelchair post.

Abstract: A sensor for attachment to an inflatable air cell cushion designed to detect optimal immersion of the cushion user into the in the inflatable cushion. The immersion depth of a user positioned on the cushion is determined by sensing air pressure in the cushion. The sensor accurately reads changes in pressure as air exits the cushion to allow an algorithm to determine optimal internal cushion pressure for a user.

Abstract: A reduced outflow valve in fluid communication with an inflatable apparatus comprising a tubular body defining an inner bore and a plunger slidingly engaged in the bore. Inflation of the inflatable apparatus urges the plunger to a first position configured to allow rapid ingress of air into the cushion to inflate the cushion and deflation of the inflatable apparatus urges the plunger to a second position wherein the plunger is configured as a baffle to dampen or slow air egress during release of air.

Abstract: An adjustment apparatus for a wheelchair back that can be used with various backs, that can be adjusted in a plurality of ways using a single adjustment point, and that can be adjusted without the use of tools. In another aspect, includes a support mechanism for mounting an adjustment apparatus for a wheelchair back that can be engaged using gravity, that provides at least one support point, and that can be utilized without the use of tools. Still another aspect of the wheelchair back assembly includes a mounting clamp that is simple in construction, that provides at least one support point, and that can be easily disassembled and adjusted to accommodate upright frame members of various diameters without the use of a tool.

Abstract: A release valve for connection to an inflatable cushion comprising an air conduit, a fitting at a first end of the air conduit for insertion into an air tube in fluid communication with the interior of the cushion, and an air inlet port at the opposite end of the air conduit and a filter assembly at the air inlet port. There is first, vertically orientated, spring biased ball valve centrally positioned in the air conduit including at least one air egress vent and being operatively associated with a spring biased actuator in the ball valve housing for opening the first ball valve. The button and first ball valve define a gap to minimize accidental air release. A second longitudinally orientated, spring biased ball valve is positioned in the air conduit adjacent the air inlet port.

Abstract: An adjustment apparatus for a wheelchair back that can be used with various backs, that can be adjusted in a plurality of ways using a single adjustment point, and that can be adjusted without the use of tools. In another aspect, includes a support mechanism for mounting an adjustment apparatus for a wheelchair back that can be engaged using gravity, that provides at least one support point, and that can be utilized without the use of tools. Still another aspect of the wheelchair back assembly includes a mounting clamp that is simple in construction, that provides at least one support point, and that can be easily disassembled and adjusted to accommodate upright frame members of various diameters without the use of a tool.

Abstract: An adjustment apparatus for a wheelchair back that can be used with various backs, that can be adjusted in a plurality of ways using a single adjustment point, and that can be adjusted without the use of tools. In another aspect, includes a support mechanism for mounting an adjustment apparatus for a wheelchair back that can be engaged using gravity, that provides at least one support point, and that can be utilized without the use of tools. Still another aspect of the wheelchair back assembly includes a mounting clamp that is simple in construction, that provides at least one support point, and that can be easily disassembled and adjusted to accommodate upright frame members of various diameters without the use of a tool.

Abstract: A support mechanism (20) for mounting a wheelchair back to a wheelchair post including at least one generally horizontally extending support pin (30), the support mechanism (20) comprising a hanger arm (24) having a downwardly opening hook (26) defining an upper support point and a self-locking latch (34) pivotally mounting to the hanger arm (24), the latch defining a locking notch (40) and a stop notch (42), the latch (34) being pivotal between a locked position in which the latch locking notch (40) and the hook (26) define a substantially closed hole around the support pin (30) and an unlocked position in which the pin (30) is seated in the stop notch (42) such that the latch (34) is secured open so the hanger arm hook (26) can be connected to or removed from the wheelchair post support pin (30); the latch (34) is shaped and weighted such that the latch can be moved to the locked position under the force of gravity.

Abstract: A cushion or mattress comprising a base and a plurality of linearly aligned individual air cells across the base. Groups of individual air cells can be interconnected and in fluid cooperation with an inflation source, such as a pump. In one aspect of the invention, the inflation of adjacent cells is staggered, for example, in a checkerboard-like inflation pattern that helps diffuse load over a wider area.

Abstract: An attachment apparatus for attachment to the air conduits of a zoned air cell cushion or mattress to an associated valve. The attachment apparatus comprises a connector assembly with connectors secured in the ends of air conduits secured in a conduit constraint. Each air conduit is in fluid communication with a separate inflation zone of the cushion or mattress. The also connectors are in fluid cooperation with a valve that places normally isolated zones into fluid communication and vice versa. The connector assembly may functions as a base for any one of a number of valves.

Abstract: An attachment apparatus (20) for attachment to the air conduits (6,8,10,12) of a zoned air cell cushion A or mattress to an associated valve. The attachment apparatus comprises a connector assembly (24) with connectors (26, 28, 30, 32) secured in the ends (N1, N2, N3, N4) of air conduits secured in a conduit constraint (38). Each air conduit is in fluid communication with a separate inflation zone (r,s,t,u) of the cushion or mattress. The connectors are in fluid cooperation with a valve (60) that places normally isolated zones into fluid communication and vice versa. The connector assembly may function as a base for any one of a number of valves (60, 103, 150, 200, 400, 500).

Abstract: An immersion sensor for use with a cushion or mattress for determining the relative immersion of a person within the cushion or mattress including a sensor, a ground and a circuit for measuring capacitance. The sensor includes a sheet of conductive material, and the ground includes a second sheet of conductive material. The circuit is adapted to send short bursts of electrical current to the sensor and a capacitor. The circuit is further adapted to measure the length of time the burst of current takes to charge the capacitor. Based upon the measured time, the circuit calculates the proximity of the object based upon the time taken to charge the capacitor. A method that may be implemented with the immersion sensor is also disclosed.

Abstract: Impact attenuating liner for headgear and headgear employing the liner, the liner positionable inside the headgear and comprising a cellular layer having an array of individual impact attenuating cells, each individual impact attenuating cells including an impact attenuating medium. The impact attenuating cells can comprise a gas, liquid, visco-elastic gel, foam, fiber or combinations thereof as well other impact attenuating medium. In another aspect, the impact attenuating liner has at least two layers, a cellular layer of and an impact attenuating layer under the cellular. The liner can include a cover. The liner can be removable from the headgear.

Abstract: An adjustment apparatus for a wheelchair back that can be used with various backs, that can be adjusted in a plurality of ways using a single adjustment point, and that can be adjusted without the use of tools. In another aspect, includes a support mechanism for mounting an adjustment apparatus for a wheelchair back that can be engaged using gravity, that provides at least one support point, and that can be utilized without the use of tools. Still another aspect of the wheelchair back assembly includes a mounting clamp that is simple in construction, that provides at least one support point, and that can be easily disassembled and adjusted to accommodate upright frame members of various diameters without the use of a tool.

Abstract: An adjustment apparatus (100) for a wheelchair back that can be used with various backs, that can be adjusted in a plurality of ways using a single adjustment point (104), and that can be adjusted without the use of tools. In another aspect, includes a support mechanism (200) for mounting an adjustment apparatus (100) for a wheelchair back that can be engaged using gravity, that provides at least one support point, and that can be utilized without the use of tools. Still another aspect of the wheelchair back assembly includes a mounting clamp (300) that is simple in construction, that provides at least one support point, and that can be easily disassembled and adjusted to accommodate upright frame members of various diameters without the use of a tool.