US 11,738,170 B2
Flushing stylet
Thomas M. Johnston, Westborough, MA (US); and Ty Fairneny, Hopkinton, MA (US)
Assigned to Mozarc Medical US LLC, Minneapolis, MN (US)
Filed by MOZARC MEDICAL US LLC, Minneapolis, MN (US)
Filed on Dec. 18, 2020, as Appl. No. 17/127,011.
Application 17/127,011 is a division of application No. 16/361,638, filed on Mar. 22, 2019, abandoned.
Application 16/361,638 is a continuation of application No. 13/792,411, filed on Mar. 11, 2013, granted, now 10,279,143, issued on May 7, 2019.
Prior Publication US 2021/0100975 A1, Apr. 8, 2021
Int. Cl. A61M 25/00 (2006.01); A61M 1/36 (2006.01); A61M 25/01 (2006.01)
CPC A61M 25/0017 (2013.01) [A61M 1/3661 (2014.02); A61M 25/0108 (2013.01); A61M 2025/0019 (2013.01)] 20 Claims
OG exemplary drawing
 
20. A system comprising:
a catheter defining a lumen and a side opening, wherein the lumen is D-shaped; and
a stylet comprising:
an elongate body defining a passage and a plurality of apertures in fluid communication with the passage;
a first blocking dam secured to the elongate body proximal to the plurality of apertures; and
a second blocking dam secured to the elongate body distal to the plurality of apertures, wherein the first and second blocking dams each defines a D-shaped cross-section,
wherein the elongate body is configured to be movable within the lumen of the catheter to a position in which the first and second blocking dams are, respectively, proximal and distal to the side opening of the catheter and each of the first and second blocking dams is sealingly engageable with an inner surface of the catheter such that fluid introduced into the lumen of the catheter, from the passage and through the plurality of apertures of the stylet, is directed through the side opening of the catheter, and
wherein the first and second blocking dams conform to the D-shaped lumen and are configured to retain fluid between the first and second blocking dams when the elongate body and the first and second blocking dams are inserted in the lumen of the catheter.