US 11,878,131 B2
Transseptal guide wire puncture system
Wesley Robert Pedersen, Minneapolis, MN (US); and Paul Sorajja, Minneapolis, MN (US)
Assigned to Boston Scientific Medical Device Limited, Galway (IE)
Filed by Boston Scientific Medical Device Limited, Ballybrit (IE)
Filed on Nov. 30, 2021, as Appl. No. 17/537,742.
Application 17/537,742 is a continuation of application No. 16/209,426, filed on Dec. 4, 2018, granted, now 11,224,725.
Claims priority of provisional application 62/594,756, filed on Dec. 5, 2017.
Prior Publication US 2022/0080161 A1, Mar. 17, 2022
Int. Cl. A61M 25/09 (2006.01); A61B 17/34 (2006.01); A61B 17/00 (2006.01); A61B 17/22 (2006.01)
CPC A61M 25/09 (2013.01) [A61B 17/3468 (2013.01); A61B 17/3478 (2013.01); A61M 25/09041 (2013.01); A61B 2017/00247 (2013.01); A61B 2017/00278 (2013.01); A61B 2017/00853 (2013.01); A61B 2017/00867 (2013.01); A61B 2017/22042 (2013.01); A61M 2025/09141 (2013.01); A61M 2025/09175 (2013.01); A61M 2210/122 (2013.01)] 18 Claims
OG exemplary drawing
1. A transseptal guide wire, comprising a proximal end, a distal end and a middle segment,
a. wherein the proximal end is in continuity with the middle segment via a proximal guide wire segment;
b. wherein the proximal guide wire segment is stiff and further comprises a distal segment and a proximal segment connected by a secondary bend in achieving a more perpendicular angle at the tissue for coaxial support;
c. wherein the distal end comprises a linear transseptal needle configured to flex at a hinge point from a linear puncturing arrangement to an acute angle with respect to a distal end of the middle segment after puncturing tissue; and
d. wherein the middle segment is formed of a shape memory material and preformed to include at least two non-circular coils that form an outer protective shield in which the transseptal needle is positioned centrally within the at least two non-circular coils once the middle segment returns to a preformed configuration.