CATHETER SHEATH INTRODUCER WITH DIRECTIONAL RETENTION DAMPER

摘要

A catheter sheath introducer comprises a hub and a tubular sheath having an inner lining with one or more dampers to improve retention of medical devices received or passed through the sheath without significantly increasing the force required to advance the medical device through the sheath. The dampers are made of a friction inducing material, for example, rubber-based materials, and configured as fingers, bumps or flaps that are unidirectional by means of an asymmetrical shape relative to a longitudinal axis of the sheath.

主权项

1. A catheter sheath introducer adapted for use with a medical device, comprising:
a hub; an elongated sheath comprising a tubular structure with a distal end and a proximal end, the tubular structure having at least one layer with an inner circumferential surface defining a lumen, the hub connected to the connected to the proximal end of the sheath; and one or more dampers extending inwardly from the inner circumferential surface, the one or more dampers each having a unidirectional configuration; wherein the dampers are configured to contact and apply a retention force on the medical device received in the lumen of the sheath.