US 12,458,331 B2
Transseptal systems and methods
Stephen A. Howard, Forest Lake, MN (US); and Kevin A. Knutsen, Ramsey, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Sep. 28, 2023, as Appl. No. 18/476,758.
Application 18/476,758 is a continuation of application No. 17/554,576, filed on Dec. 17, 2021, granted, now 11,806,000.
Claims priority of provisional application 63/149,468, filed on Feb. 15, 2021.
Prior Publication US 2024/0016484 A1, Jan. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/00 (2006.01); A61B 17/34 (2006.01); A61M 25/09 (2006.01); A61M 29/00 (2006.01)
CPC A61B 17/00234 (2013.01) [A61B 17/3478 (2013.01); A61M 25/09 (2013.01); A61M 29/00 (2013.01); A61B 2017/00247 (2013.01); A61B 2017/3405 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A transseptal system comprising:
a needle body defining a distal tip and an intermediate section proximal the distal tip;
a guidewire defining a leading end and an intermediate segment proximal the leading end;
a handle defining a needle passage and a guidewire passage, wherein the needle passage is sized to slidably receive the intermediate section of the needle body, and further wherein the guidewire passage is sized to slidably receive the intermediate segment of the guidewire; and
a dilator body defining a distal end, a proximal end, and a lumen having a distal region open to the distal end and a proximal region open to the proximal end,
wherein the proximal end of the dilator body is coupled to the handle such that the lumen is open to the needle passage and the guidewire passage, and
wherein the proximal region of the lumen is sized to simultaneously receive the intermediate section of the needle body and the intermediate segment of the guidewire.