Patent ID: 8057437
Filing Date: 2011-11-15
Classification: A61M

Abstract:
1. A cassette for use in a pump that delivers a medicinal fluid, comprising: a housing having an inlet port through which the medicinal fluid enters the cassette and an outlet port through which the medicinal fluid leaves the cassette, said housing providing a sealed fluid path between the inlet port and the outlet port; an elastomeric membrane disposed within the housing and cooperating with the housing to define the fluid path between the inlet port and the outlet port; a valve being disposed in the fluid path between the inlet port and the outlet port; said valve having a hollow cup having an interior surrounded by an annular flange; said annular flange engaging and surrounding a sidewall of a cylindrical port within a valve body to close the fluid path; an actuating member engaging the hollow cup axially such that when actuated the annular flange expands radially to open the fluid path; and wherein a gusset is disposed within the interior of the hollow cup and is attached to the annular flange.