Modular introducer and exchange sheath

摘要

In accordance with the present invention there is provided exemplary embodiments of an introducer sheath in accordance with the present invention, wherein the introducer sheath of the present invention is formed of multiple components which are resiliently assembled to form a single introducer sheath. One embodiment of the introducer sheath includes a hub, a retaining member and an elongated tubular member. The hub has a lumen that has a groove. The elongated tubular member has a proximal end that includes a flared portion. The distal end of the retaining member is configured to be received in the groove formed in the lumen of the hub. The distal end of the retaining member contacts the flared portion of the tubular member when distal end of the retaining member is disposed in the groove such that the tubular member is retained within the lumen of the hub in a sealed engagement.

主权项

1. An introducer sheath, comprising:
a hub having a proximal end and a distal end and a lumen extending therebetween, the hub having a cutout in the proximal end thereof; an elongated tubular member having a proximal end and a distal end, the elongated tubular member being an outermost surface of the introducer sheath; a retaining member having an outer surface parallel to an inner surface defining a lumen, the retaining member sized to be received within the lumen of the hub and being further configured to retain the proximal end of the tubular member within the lumen of the hub and receive a portion of the proximal end of the elongated tubular member about the outer surface and within the lumen of the retaining member, the retaining member being configured to be frictionally restrained within the lumen of the hub; a flexible membrane having an opening and a locating channel, the flexible membrane being secured within the hub; and a cap having a protrusion configured to fit within the cutout of the hub in a manner that secures the cap to the hub, a portion of the cap being configured to fit into the locating channel in the flexible membrane in a manner that locates the cap relative to the flexible membrane, and the flexible membrane and the cap cooperating to further secure the retaining member in the hub.