摘要:
A bed is provided having a decreased length foot deck to allow the bed to be converted to a chair bed and lowered close to the floor even when the foot deck is in a substantially vertical position. In one embodiment, the bed has a frame assembly, a deck supported on the frame assembly, and a mattress supported on the deck. The deck has a length extending from a head end of the head section to a foot end of the foot section when the deck is in a substantially horizontal position. The mattress has head, seat and foot mattress portions corresponding, respectively, to the head, seat and foot sections of the deck. The mattress has a length extending from a head end of the mattress to a foot end of the mattress when the mattress is in a substantially horizontal position. The length of the mattress is greater than the length of the deck, such that in one embodiment the mattress has a foot end that overhangs and is cantilevered from the edge of the foot deck section.
摘要:
An apparatus for controlling the pressure of fluid within a chamber upon which a person rests includes a manifold having a wall defining an interior region in fluid communication with a source of pressurized fluid and an air sack defining the chamber. The air sack includes a wall defining an interior region of the air sack. The wall is formed to include an air loss opening in fluid communication with the interior region of the air sack. The apparatus also includes a flow control assembly having a conduit in fluid communication with the interior region of the air sack and with the interior region of the manifold. The flow control assembly also includes a check valve mounted in the conduit to prevent the flow of pressurized fluid through the conduit from the interior region of the air sack to the interior region of the manifold.
摘要:
An undercarriage system apparatus is provided for supporting and transporting a fluidized patient support system above and across a floor. The apparpatus includes a base frame for carrying the fluidized patient support system, a plurality of heavy duty casters, and a pair of disk springs disposed between each caster and the base frame. Each caster includes a central shaft, a shoulder portion disposed about the central shaft for carrying the load, a wheel carriage rotatably mounted via needle bearings to swivel about the central shaft, and a pair of caster wheels mounted side-by-side to rotate about the wheel carriage. The disk springs of each pair are disposed to contact at their outermost edges. Each dish spring desirably has a maximum load capacity rated at least 50% above the nominal load which the disk spring must carry. The base frame defines a sleeve for receiving each central shaft of each caster. An elongated slot is defined through each sleeve. A threaded opening extends radially into the central shaft of each caster about 1 inch above the shoulder. A bolt screws into the threaded opening and rides within the confines of the slot of the sleeve as the disk springs are compressed and uncompressed during shock absorbing events.
摘要:
An apparatus for performing Trendelenburg therapy and reverse Trendelenburg therapy includes an intermediate frame carried above a base frame by an inner cross-riser pivotally connected to an outer cross-riser. One end of the outer cross-riser to pivotally connected to the base frame, and the opposite end of the outer cross-riser is rotatably and translatably connected to the intermediate frame via a cam and cam follower arrangement in which the cam follower rides on a wear plate. One end of the inner cross-riser is pivotally connected to the intermediate frame, and the opposite end of the inner cross-riser is both rotatably and translatably connected to the base frame via a cam and cam follower arrangement in which the follower rolls against a lower wear plate. A pivotable Trendelenburg linkage is carried on the end of the inner cross-riser connected to the intermediate frame, and a pivotable reverse Trendelenburg linkage is carried on the end of the outer cross-riser rotatably and translatably connected to the intermediate frame. Dual acting hydraulic cylinders power the raising and lowering of the intermediate frame by effecting a scissor movement between the inner cross-riser and outer cross-riser. Single acting hydraulic cylinders power the pivoting movement of the Trendelenburg linkage. Similarly, single acting hydraulic cylinders power the pivoting movement of the reverse Trendelenburg linkage.