	US 12,403,287 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 Jul. 31, 2023, as Appl. No. 18/228,004.
Application 18/228,004 is a continuation of application No. 17/232,425, filed on Apr. 16, 2021, granted, now 11,752,308.
Application 17/232,425 is a continuation of application No. 16/381,942, filed on Apr. 11, 2019, granted, now 11,007,350, issued on May 18, 2021.
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 2024/0024638 A1, Jan. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 25/09 (2006.01); 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)

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

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 pump comprises one or more blades; 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 distal section with a second stiffness greater than the first stiffness, and wherein a third stiffness of the one or more blades of the pump is greater than the first stiffness of the guidewire.