US 11,980,730 B2
Anchored dilator system and methods for same
Gregg Sutton, Eden Prairie, MN (US); Charles Olson, Eden Prairie, MN (US); and Karl V. Ganske, Hopkins, MN (US)
Assigned to Surmodics, Inc., Eden Prairie, MN (US)
Filed by Surmodics, Inc., Eden Prairie, MN (US)
Filed on Dec. 16, 2020, as Appl. No. 17/123,512.
Claims priority of provisional application 62/949,024, filed on Dec. 17, 2019.
Prior Publication US 2021/0178134 A1, Jun. 17, 2021
Int. Cl. A61M 29/02 (2006.01)
CPC A61M 29/02 (2013.01) [A61M 2029/025 (2013.01); A61M 2210/12 (2013.01)] 30 Claims
OG exemplary drawing
 
1. An anchored dilator system comprising:
a guide catheter having proximal and distal catheter end portions and a catheter lumen extending therebetween;
an anchored dilator received in the catheter lumen, the anchored dilator includes:
a dilator tip having an anchor cuff;
a push tube coupled with the dilator tip and extending toward the proximal catheter end portion;
a cuff operator proximate the dilator tip; and
an operator shaft coupled with the cuff operator, the operator shaft extends from the dilator tip toward the proximal catheter end portion; and
wherein the anchor cuff is configured to transition between anchored and shuttle configurations:
in the anchored configuration actuation of the cuff operator with the operator shaft deploys the anchor cuff into engagement with the distal catheter end portion, and the anchor cuff has an anchored profile equal to or greater than a lumen profile of the guide catheter; and
in the shuttle configuration the anchor cuff is withdrawn and disengaged with the distal catheter end portion, and the anchor cuff has a shuttle profile smaller than a lumen profile of the guide catheter.