초록 ▼

A valve includes an inlet and outlet housing, a flexible one-way valve, and a collar. The flexible valve is locked between the housings. The collar is attached to the inlet housing and extends into the flexible valve. As fluid flows through the valve, the collar supports the flexible valve and preve

A valve includes an inlet and outlet housing, a flexible one-way valve, and a collar. The flexible valve is locked between the housings. The collar is attached to the inlet housing and extends into the flexible valve. As fluid flows through the valve, the collar supports the flexible valve and prevents collapse due to back flow pressure.

대표청구항 ▼

[ I claim:] [9.] A method of operating a check valve apparatus in a medical procedure comprising:a) providing an inlet housing member including a cylindrical shaft comprising a medical tubing connector and having an opening formed therein and a support portion, an outlet housing member including a c

[ I claim:] [9.] A method of operating a check valve apparatus in a medical procedure comprising:a) providing an inlet housing member including a cylindrical shaft comprising a medical tubing connector and having an opening formed therein and a support portion, an outlet housing member including a cylindrical shaft comprising a medical tubing connector and having an opening formed therein and a base portion seated against the support portion and a collar portion inside the housing and aligned with the opening, and a flexible valve including a flange portion and a cylinder portion extending perpendicular from a surface of the flange portion fitted between the collar portion and the support portion, the collar portion extending perpendicular from the support portion to support an interior surface of the cylinder portion, the flange portion contacted by and secured between the support portion and base portion;b) flowing a fluid continuously through the apparatus by flowing the fluid through the opening in the inlet housing member, through the flexible valve, and through the opening in the outlet housing member;c) subjecting the valve to back pressure; andd) supporting the flexible valve with the collar to prevent the back pressure from collapsing the valve.