Rotatable medical valve closure

A medical closure device for providing a passage into or out of the body for both pressurized fluids and a medical device, comprising in combination:

• a resilient member at least partially defining said passage, said passage having an axis and sized to pass a selected medical device and pressurized fluid, said resilient member being of material selected, in response to radial pressure applied to said resilient member, to form a pressure seal upon said medical device when said medical device is present in said passage and upon an opposing surface defining said passage when said medical device is not present;
• a proximal body portion including first and second members said first member having a pressure fitting in sealing engagement with and mounting said resilient member and said second member disposed about and supporting said resilient member;
• a distal body portion including an internal cam having a cam surface oriented about and spaced from the axis of said passage with a first surface portion disposed relatively closer to said axis than a circumferentially spaced second surface portion, and
• a compression member positioned in a radially extending aperture in said proximal body portion and biased radially outwardly by said resilient member to maintain contact with said cam surface,
• said proximal and distal body portions being connected together in a manner permitting their relative rotation about said axis, and said body portions and said resilient member being sealed together in a manner to withstand, without leakage, fluid under pressure in said passage;
• said connected body portions cooperatively related, whereby, upon relative rotation of said body portions, said cam surface is moved relative to said compression member to cause radial displacement of said compression member closer to the axis of said passage to cause said resilient member to grip and pressure seal upon the exterior of said medical device, when present in said passage, or upon said opposing surface defining said passage when said medical device is not present.

A method of opening or closing a passage through which both pressurized fluids and a medical device can pass into or out of the body, comprising the steps of:

• a) providing a closure device comprising:
• a rotatable body portion including a connector for connection to and disconnection from a mating connector of a cooperative component by relative rotation between said rotatable body portion and the cooperative component, and
• a relatively stationary body portion of said closure device, said rotatable body portion being rotatable relative to said stationary body portion between an open position in which a passage is defined through said closure device and a closed position in which said passage is closed,
• said body portions being constructed and arranged such that the direction of relative rotation of said connectors for connection of said rotatable body portion to said cooperative component corresponds to the direction of rotation of said rotatable portion relative to said stationary body portion toward said open position to also open said passage and the direction of relative rotation of said connectors that disconnects said rotatable body portion from said cooperative component corresponds to the direction of rotation of said rotatable body portion relative to said stationary body portion toward said closed position to also close said passage,
• b) connecting or disconnected said cooperative component and said rotatable body portion to open or close said passage, respectively, by relative rotation between said rotatable body portion and the cooperative component.