US 11,752,308 B2
Guidewire for cannula placement
Zhenghong Tao, Danvers, MA (US); and Michael Thomas Finnegan, Danvers, MA (US)
Assigned to ABIOMED, INC., Danvers, MA (US)
Filed by ABIOMED, Inc., Danvers, MA (US)
Filed on Apr. 16, 2021, as Appl. No. 17/232,425.
Application 17/232,425 is a continuation of application No. 16/381,942, filed on Apr. 11, 2019, granted, now 11,007,350.
Application 16/381,942 is a continuation of application No. 15/790,107, filed on Oct. 23, 2017, granted, now 10,300,249, issued on May 28, 2019.
Application 15/790,107 is a continuation of application No. 14/862,090, filed on Sep. 22, 2015, granted, now 9,821,146, issued on Nov. 21, 2017.
Prior Publication US 2021/0299411 A1, Sep. 30, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 25/09 (2006.01); A61M 60/148 (2021.01); A61M 60/174 (2021.01); A61M 60/865 (2021.01); A61M 60/13 (2021.01); A61M 60/216 (2021.01)
CPC A61M 25/09 (2013.01) [A61M 60/13 (2021.01); A61M 60/148 (2021.01); A61M 60/174 (2021.01); A61M 60/216 (2021.01); A61M 60/865 (2021.01); A61M 2025/09083 (2013.01); A61M 2025/09133 (2013.01)] 18 Claims
OG exemplary drawing
1. A method for inserting a pump configured for insertion into a vascular system, comprising:
inserting a guidewire into a vasculature of a patient;
inserting the guidewire into a cannula through a distal end of the cannula, the distal end of the cannula supporting a pump, wherein the cannula has a three-dimensional shape with a first S bend in a first plane, and a second S bend in a second plane which is different from the first plane; and
pushing the guidewire through the pump,
wherein inserting the guidewire into the vasculature of the patient occurs prior to inserting the guidewire into the cannula, and
wherein the guidewire includes a proximal section with a first stiffness and a first diameter, and a distal section connected to the proximal section, the distal section with a second stiffness greater than the first stiffness and a second diameter greater than the first diameter.