Patent attributes
A medical check valve includes a main body with an inlet and an outlet. A poppet valve base in the main body may include a first conduit to enable fluid flow between the inlet and the outlet in a normal operating position and a second conduit to enable fluid flow between the outlet and a top portion of the poppet valve base in a bypass operating position. A poppet cap with a neck portion inserted into the poppet valve base may be moved between an open position and a closed position. In the open position, fluid flow is permitted into an aperture in the cap, e.g., via a syringe, in the bypass operating position such that the fluid in the syringe is delivered to the outlet. In the closed position, and fluid flow is disabled, preventing possible splash back events.