Method to secure an elastic component in a valve

摘要

An apparatus for controlling fluid flow to provide long-term access to the vascular system, and methods of making the same, are disclosed. Exemplary embodiments of the present invention describe a wedge or other similarly shaped geometrical feature for fixing an elastic component and controlling an internal stress of the elastic component.

主权项

1. A device to provide access to the vascular system of a patient, comprising:
a valve component comprising a flexible membrane having a radially outer portion situated between a first mateable housing portion and a second mateable housing portion, said flexible membrane comprising a slit configured to open under a threshold fluid pressure and an outer edge displaced into a recess by at least one of the first and second mateable housing portions, the recess defined by at least one of the first and second mateable housing portions; and a catheter in fluid communication with said valve component.