US 11,051,850 B2
Dilating cannula with radially expandable flange and method of using the same
Salvatore Castro, Raleigh, NC (US)
Assigned to TELEFLEX MEDICAL INCORPORATED, Morrisville, NC (US)
Filed by TELEFLEX MEDICAL INCORPORATED, Morrisville, NC (US)
Filed on Oct. 1, 2018, as Appl. No. 16/148,270.
Application 16/148,270 is a continuation of application No. 14/207,987, filed on Mar. 13, 2014, granted, now 10,085,769.
Claims priority of provisional application 61/785,383, filed on Mar. 14, 2013.
Prior Publication US 2019/0029721 A1, Jan. 31, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/34 (2006.01); A61M 25/00 (2006.01)
CPC A61B 17/3439 (2013.01) [A61B 17/3431 (2013.01); A61M 2025/0024 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A dilating cannula comprising:
a radially expandable flange disposed at a proximal end portion of the dilating cannula, the expandable flange having first and second spaced apart sectors; and
an expandable shaft extending from the expandable flange to a distal end portion of the dilating cannula, the expandable shaft defining an inner passageway and comprising a first arm and a second arm, wherein the first arm comprises a first pair of branches joined at a first base section, the second arm comprises a second pair of branches joined at a second base section, and the first base section and the second base section are spaced apart.