| 主权项 |
1. A method of operating a pneumatic compression device comprising;
providing a pneumatic compression device comprising:
a compression pump,a fill/exhaust valve configured to connect an output of the compression pump to a plurality of cell valves when in an open state, wherein the fill/exhaust valve is further configured to connect the plurality of cell valves to the atmosphere when in a closed state,a plurality of cell valves connected to an output of the fill/exhaust valve, a transducer,wherein the transducer is configured to sense a pressure level at the fill/exhaust valve,a controller in communication with the transducer, the fill/exhaust valve, and the plurality of cell valves, wherein the controller is configured to determine a state for each of the fill/exhaust valve and the plurality of cell valves based on at least a pressure level sensed by the transducer, wherein each state comprises one of an open state and a closed state, anda plurality of cells, each of the plurality of cells connected to an output of a corresponding cell valve of the plurality of cell valves,wherein each of the fill/exhaust valve and the plurality of cell valves comprises a portion of a first bore of a common manifold and a portion of a second bore of the common manifold, wherein the manifold comprises a plurality of spacers, wherein each spacer is positioned on a distal side of a corresponding valve, wherein each spacer is operable to separate the portion of the second bore of the corresponding valve from the portion of the second bore of an adjacent valve or the atmosphere, wherein a spacer corresponding to the fill/exhaust valve is further operable to separate the portion of the first bore of the fill/exhaust valve from the portion of the first bore of the adjacent cell valve; deflating the plurality of cells, comprising:
placing the fill/exhaust valve in an exhaust state, andplacing each of the plurality of cell valves in an open state until a first pressure threshold is achieved; inflating at least one of the plurality of cells until a second pressure threshold is achieved, comprising:
placing the fill/exhaust valve in a fill state,placing each of the plurality of cell valves corresponding to the at least one of the plurality of cells in an open state, andplacing each of the plurality of cell valves not corresponding to the at least one of the plurality of cells in a closed state; determining whether to inflate one or more additional cells; and if so, repeating the inflating and determining steps for the one or more additional cells. |
