CPC A61B 5/0084 (2013.01) [A61B 5/0035 (2013.01); A61B 5/0036 (2018.08); A61B 5/0062 (2013.01); A61B 5/0066 (2013.01); A61B 5/02007 (2013.01); A61B 5/6852 (2013.01); A61B 6/12 (2013.01); A61B 6/485 (2013.01); A61B 6/487 (2013.01); A61B 8/0841 (2013.01); A61B 17/32002 (2013.01); A61B 17/320758 (2013.01); A61B 90/37 (2016.02); A61B 90/39 (2016.02); A61B 2017/00057 (2013.01); A61B 2017/003 (2013.01); A61B 2017/00778 (2013.01); A61B 2017/22068 (2013.01); A61B 2090/306 (2016.02); A61B 2090/3614 (2016.02); A61B 2090/3735 (2016.02); A61B 2090/376 (2016.02); A61B 2090/3966 (2016.02); A61B 2090/3983 (2016.02); A61B 2217/007 (2013.01); A61B 2562/0233 (2013.01); F04C 2270/0421 (2013.01)] | 16 Claims |
1. A method of forming a passage through an occlusion or lesion, the method comprising:
advancing an occlusion crossing catheter into a body lumen, the occlusion crossing catheter having an elongate body, a guidewire lumen extending within the elongate body from a proximal end of the elongate body to an opening at a distal end of the elongate body, a rotatable tip at the distal end of the elongate body, and an optical coherence tomography (OCT) sensor comprising an optical fiber coupled with the rotatable tip;
automatically rotating the rotatable tip in a first direction relative to the elongate body of the occlusion crossing catheter such that the OCT sensor rotates;
rotating repeatedly the rotatable tip alternately between the first direction and a second direction;
imaging a region of the body lumen surrounding the occlusion crossing catheter using the OCT sensor;
passing the rotatable distal tip past the occlusion or lesion in the body lumen;
advancing a guidewire past the occlusion or lesion by passing the guidewire through the guidewire lumen of the occlusion crossing catheter;
withdrawing the occlusion crossing catheter from the body lumen and leaving the guidewire in the body lumen; and
inserting an atherectomy catheter over the guidewire and into the body lumen, wherein the atherectomy catheter comprises an atherectomy catheter elongate body, an atherectomy cutter including a cutter edge, and an atherectomy catheter optical coherence tomography (OCT) imaging sensor.
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