Medical valve with improved back-pressure sealing
AssigneeNP Medical Inc.
InventorsWilliam Siopes, Luis Maseda, Ian Kimball
Life of this patent
Estimating the term…
Abstract
A medical valve transitions between an open mode that permits fluid flow, and a closed mode that prevents fluid flow. To that end, the medical valve has a housing with an inlet and an outlet, a rigid member movably mounted within the housing, and a resilient member with a sealing portion. The housing also has at least one relief zone that is in fluid communication with the outlet when the valve is in the closed mode. The rigid member may have a proximal end, a distal end, and a flow channel. The relief zone may be radially outward from the sealing portion. The sealing portion may seal the valve and prevent fluid from passing through the valve when in the closed mode.
Claims21
A medical valve having an open mode that permits fluid flow, and a closed mode that prevents fluid flow, the medical valve comprising:
- a housing having an inlet and an outlet, the housing also having at least one relief zone in fluid communication with the outlet when the valve is in the closed mode;
- an actuator member movably mounted within the housing and moveable distally after insertion of a medical implement into the inlet;
- and
- a resilient member having an aperture and a distal portion, the aperture extending through at least a portion of the distal portion and being closed when the valve is in the closed mode to prevent fluid flow through the valve, wherein distal movement of the actuator opens the aperture thereby transitioning the valve from the closed mode to the open mode, the relief zone being radially outward of at least a portion of the distal portion and at least a portion of the aperture.
A medical valve having an open mode that permits fluid flow, and a closed mode that prevents fluid flow, the medical valve comprising:
- a housing having an inlet and an outlet;
- an actuator movably mounted within the housing and moveable distally after insertion of a medical implement into the inlet;
- a resilient member having an aperture and a distal portion, the aperture being closed when the valve is in the closed mode and creating a seal to prevent fluid flow through the valve, wherein distal movement of the actuator opens the aperture thereby transitioning the valve from the closed mode to the open mode;
- and
- an annular space circumscribing at least a portion of the distal portion of the resilient member, the annular space in fluid communication with the outlet and being configured such that a proximally directed pressure within the valve increases the seal at the aperture by applying a greater closing force on the aperture.
A medical valve having an open mode that permits fluid flow, and a closed mode that prevents fluid flow, the medical valve comprising:
- a housing having an inlet and an outlet, the housing also having at least one relief means in fluid communication with the outlet when the valve is in the closed mode;
- an actuating means movably mounted within the housing and moveable distally within the housing after insertion of a medical implement into the inlet;
- and
- a valve means for controlling fluid flow through the housing, the valve means having an aperture and a distal portion, the aperture extending through at least a portion of the distal portion and being closed when the valve is in the closed mode to prevent fluid flow through the valve, wherein distal movement of the actuating means opens the aperture thereby transitioning the valve from the closed mode to the open mode, the relief means being radially outward of at least a portion of the distal portion and at least a portion of the aperture.
A medical valve having an open mode that permits fluid flow, and a closed mode that prevents fluid flow, the medical valve comprising:
- a housing having an inlet and an outlet, the housing also having at least one relief zone in fluid communication with the outlet when the valve is in the closed mode;
- an actuator member movably mounted within the housing and moveable distally after insertion of a medical implement into the inlet;
- and
- a resilient member having an aperture and a distal portion, the aperture extending through at least a portion of the distal portion and being closed when the valve is in the closed mode to prevent fluid flow through the valve, wherein distal movement of the actuator opens the aperture thereby transitioning the valve from the closed mode to the open mode and allow fluid to flow through the aperture and the distal portion, the relief zone being radially outward of at least a portion of the distal portion.
Dependencies are inferred from the claim text.