Multi-chamber variable pressure valve

A valve for successive filling of fluid cells of a compression therapy device, the valve comprising:

• at least two ports, each port opening to at least one fluid outlet channel, each fluid outlet channel being configured to connect to a fluid cell of a compression therapy device;
• a first elastic membrane having a varying physical property along at least one dimension thereof, said elastic membrane configured to cover said ports to cause varying pressure among said fluid cells when fluid is injected into said fluid cells through said fluid outlet channels;
• at least one membrane fluid inlet configured to provide fluid so as to apply pressure on one side of said first elastic membrane, thereby causing said first elastic membrane to cover and block access to said ports;
• at least one channel fluid inlet configured to provide fluid to said fluid outlet channels, to apply pressure to another side of said elastic first membrane and successively displace said first elastic membrane from covering said ports, which results in successively filling of said fluid cells;
• and
• at least one fluid outlet passage configured to allow fluid to exit from said valve.

A valve for successive filling of at least two fluid cells of a pressure device, the valve comprising:

• at least two ports, each port opening to one or more fluid outlet channels, each fluid outlet channel being configured to connect to a fluid cell, said fluid outlet channels having different dimensions;
• at least one elastic membrane configured to cover one or more of said ports to define varying fluid volumes captured among said fluid cells when connected to said fluid outlet channels;
• at least one membrane fluid inlet configured to provide fluid so as to apply pressure on one side of said at least one elastic membrane, thereby causing said at least one elastic membrane to cover and block access to said ports;
• at least one channel fluid inlet configured to provide fluid to said fluid outlet channels to fill said fluid cells and apply pressure to other side of said at least one elastic membrane, successively displacing said at least one elastic membrane from covering said ports, which results in successively filling of said fluid cells;
• and
• at least one fluid outlet passage configured to allow fluid to exit said valve.

A valve for successive filling of fluid cells of a compression therapy device, the valve comprising:

• at least two ports, each port opening to at least one fluid outlet channel, each fluid outlet channel being configured to connect to a fluid cell of a compression therapy device;
• at least one elastic port membrane, said at least one elastic port membrane configured to cover one or more of said ports;
• at least one venting aperture, opening to at least one of said fluid outlet channels;
• at least one elastic venting membrane, said at least one elastic venting membrane configured to cover said at least one venting aperture;
• at least one port membrane fluid inlet configured to provide fluid so as to apply pressure on one side of said at least one elastic port membrane thereby causing said at least one elastic port membrane to cover and block access to said ports;
• at least one channel fluid inlet configured to provide fluid to said fluid outlet channels to apply pressure to other side of said at least one elastic port membrane and successively displace said elastic port membrane from covering said ports as fluid is provided via channel fluid inlet, which results in successively filling of said fluid cells;
• at least two one-way check valves configured to allow fluid to flow from said port membrane fluid inlets into said fluid cells until fluid pressure in said fluid cells reaches a pre-determined level and closes valve, pre-determined pressure level varying among said check valves so that output pressure varies among said at least two fluid cells, each of said check valves positioned in one of said ports;
• and
• at least one fluid outlet passage configured to allow fluid to exit from valve.