Patent ID: 7470261
Filing Date: 2008-12-30
Classification: A61B,A61J,A61M,Y10S

Abstract:
1. A method of using a rigid displacing member to control the flow of medical fluid through an elastic flow path and an outlet port of a medical device the device having an outer housing defining a bore, the bore having a distal end, the device further having an elastomeric valve system mounted at least partially within said bore and displaceable along said bore, the elastomeric valve system defining a longitudinal axis and an upper portion with an upper face and including said elastic flow path extending least partially through said valve system along said axis, the elastomeric valve system having an inlet end and an outlet end communicating with the outlet port, said method comprising the steps of: displacing at least the entire inlet end and entire upper face of said elastomeric valve system along said bore toward said distal end; forcefully distorting at least a portion of the elastomeric valve system to expand the elastomeric valve system in a generally radial outward direction relative to the axis of the elastic flow path, said distorting forcibly and elastically enlarging at least a portion of said elastic flow path; and flowing the medical fluid through the face and at least the upper portion of said elastic flow path.