US 12,256,898 B2
Introducer sheaths for endoscopes and related methods
Thomas William Winegar, Trumbull, CT (US); and Rosemary Michelle Garofalo, North Haven, CT (US)
Assigned to CooperSurgical, Inc., Trumbull, CT (US)
Filed by CooperSurgical, Inc., Trumbull, CT (US)
Filed on Sep. 24, 2021, as Appl. No. 17/484,222.
Application 17/484,222 is a continuation of application No. 15/451,583, filed on Mar. 7, 2017, abandoned.
Claims priority of provisional application 62/309,121, filed on Mar. 16, 2016.
Prior Publication US 2022/0079620 A1, Mar. 17, 2022
Int. Cl. A61B 1/00 (2006.01); A61B 1/303 (2006.01); A61B 1/32 (2006.01); A61B 17/34 (2006.01); A61B 17/42 (2006.01); A61M 25/06 (2006.01); A61B 17/02 (2006.01)
CPC A61B 1/00154 (2013.01) [A61B 1/00085 (2013.01); A61B 1/00135 (2013.01); A61B 1/303 (2013.01); A61B 1/32 (2013.01); A61B 17/3415 (2013.01); A61B 17/3421 (2013.01); A61B 17/3439 (2013.01); A61B 17/4241 (2013.01); A61M 25/0668 (2013.01); A61B 17/0218 (2013.01); A61B 2017/345 (2013.01); A61B 2017/3454 (2013.01); A61M 2025/0687 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A sheath for facilitating insertion of a cannula of an endoscope into an internal space of a patient, the sheath comprising:
an outer sleeve including a pawl;
an inner sleeve including one or more ratchet features configured to engage the pawl, the inner sleeve slidably disposed in the outer sleeve and adapted to receive a shaft of the cannula; and
an introducer positioned at a distal end of the outer sleeve, the introducer having a tip end and an open end at a distal end of the introducer, the open end being sized and shaped to accept a tip of the cannula, the tip end adapted to be deflected in an outward direction.