CATHETER INCLUDING LEAK RESISTANT PROXIMAL SHAFT

摘要

A catheter may include a hypotube defining an inner circumferential surface, an outer circumferential surface, and an end. The hypotube may include a metal or alloy. The catheter also may include an inner liner attached to the inner circumferential surface of the hypotube and extending beyond the end of the hypotube, and the inner liner may include a fluoropolymer. The catheter further may include a hub and a single bonding layer attached to the outer circumferential surface of the hypotube and bonded to the hub. The single bonding layer may include a polyamide, a polyether-co-polyamide, or polyurethane and is the only layer between the outer circumferential surface of the hypotube and the hub.

主权项

1. A catheter comprising:
a hypotube defining an inner circumferential surface, an outer circumferential surface, and an end, wherein the hypotube comprises a metal or alloy; an inner liner attached to the inner circumferential surface of the hypotube and extending beyond the end of the hypotube, wherein the inner liner comprises a fluoropolymer; a hub; and a single bonding layer attached to the outer circumferential surface of the hypotube and bonded to the hub, wherein the single bonding layer comprises a polyamide or a polyether-co-polyamide, and wherein the single bonding layer is the only layer between the outer circumferential surface of the hypotube and the hub.