Introducer Sheaths for Endoscopes and Related Methods

Abstract: a method for inserting a cannula of an endoscope into a cavity of a patient includes slidably coupling an inner sleeve of a sheath with an outer sleeve of the sheath and advancing an introducer, in a collapsed configuration and positioned at a distal end of the outer sleeve, through a cavity of the patient until the introducer is inserted into the internal space of the patient. the method includes translating the inner sleeve relative to the outer sleeve and towards the introducer to dilate the internal space, and placing the cannula of the endoscope within the inner sleeve of the sheath, proximal to the introducer at the distal end of the outer sleeve. the method includes advancing the cannula along the inner sleeve and through the introducer a desired distance within the cavity, and removing the cannula and sheath from the patient.

Inventor(s): Thomas William Winegar, Rosemary Michelle Garofalo

CPC Classification: A61B1/00154 ({using guiding arrangements for insertion})

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