Catheter with valve assembly

Details Catheter with valve assembly Catheter with valve assembly

A - Human Necessities

61

M

128/127.1

A61M 25/00 (2006.01)

Patent

CA 1136511

PF-1375 CATHETER WITH VALVE ASSEMBLY ABSTRACT OF THE DISCLOSURE A catheter comprising, a conduit having a lumen, and a valve assembly for the lumen. The valve assembly has a housing having a cavity communicating with the lumen, a port, and a seat extending peripherally around the port. The valve assembly also has a valve element of elastic material received in the cavity and having a first portion defining a surface for sealingly engag- ing against the seat. The valve element has a second portion con- nected to the housing at a location such that it stretches respon- sive to contact against the first portion through the port. The second portion biases the sealing surface of the first portion against the seat to close the valve, and the second portion per- mits movement of the first portion away from the seat for passage of fluid between the sealing surface and the seat. The valve element defines an opening remote the surface of the valve element bounded by the sealing surface to permit further passage of the fluid to the lumen.

320625

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