US 12,285,189 B2
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Benjamin Willard, Clearwater, FL (US); Eric Stubkjaer, Gulfport, FL (US); Thomas Kehoe, Tarpon Springs, FL (US); and Kevin Quintero, Safety Harbor, FL (US)
Assigned to Conmed Corporation, Utica, NY (US)
Appl. No. 16/771,811
Filed by Conmed Corporation, Utica, NY (US)
PCT Filed Dec. 13, 2018, PCT No. PCT/US2018/065419
§ 371(c)(1), (2) Date Jun. 11, 2020,
PCT Pub. No. WO2019/118703, PCT Pub. Date Jun. 20, 2019.
Claims priority of provisional application 62/673,520, filed on May 18, 2018.
Claims priority of provisional application 62/673,365, filed on May 18, 2018.
Claims priority of provisional application 62/673,541, filed on May 18, 2018.
Claims priority of provisional application 62/673,451, filed on May 18, 2018.
Claims priority of provisional application 62/598,094, filed on Dec. 13, 2017.
Prior Publication US 2021/0169522 A1, Jun. 10, 2021
Int. Cl. A61B 17/34 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/3462 (2013.01) [A61B 2017/00955 (2013.01); A61B 2017/00991 (2013.01); A61B 2017/3464 (2013.01); A61B 2017/349 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An obturator comprising:
an obturator body extending along a central longitudinal axis and having a cannulated outer obturator tube extending therethrough, the outer obturator tube having a distal tip with a dilating assembly movable between a collapsed, first configuration and an expanded, second configuration;
a shaft expander comprising a cannulated inner obturator tube which is movable between a first position and a second position within the outer obturator tube;
a second cannulated tube having a central longitudinal axis which extends around the cannulated outer obturator tube distal the obturator body;
a pair of stirrups comprising a first stirrup and a second stirrup, each of which comprises a first portion extending proximally from the second cannulated tube at an angle to the central longitudinal axis and a second portion extending proximally from the respective first portion along an axis parallel to the central longitudinal axis;
a rigid body connected around the second cannulated tube and moveable along a length of the second cannulated tube;
wherein in the first position, the inner obturator tube is retracted from the distal tip of the outer obturator tube and the dilating assembly is in the first configuration;
wherein in the second position, the inner obturator tube is advanced within the distal tip of the outer obturator tube and the dilating assembly is in the second configuration; and
wherein the rigid body comprises a proximal telescoping assembly, the proximal telescoping assembly comprising one or more blades structured and configured to form an elongated slit in the second cannulated tube parallel to the central longitudinal axis when the rigid body is advanced distally along the length of the second cannulated tube.