Patent ID: 11944333
Assignee: NEURAVI LIMITED
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 12:
13. A method, comprising:
advancing a clot engagement element, by distally advancing a shaft through a first catheter, wherein the shaft comprises:
a shaft proximal section,
a shaft distal section with a diameter less than the shaft proximal section, the shaft distal section being attached to the clot engagement element, and
a shaft intermediate section between the shaft proximal and distal sections,

extending the first catheter across an obstruction in a blood vessel, wherein the first catheter comprises:
a first catheter proximal section,
a first catheter distal section with a diameter less than a diameter of the first catheter proximal section,
a first catheter intermediate section between the first catheter proximal section and the first catheter distal section;

advancing a second catheter to a first location proximal of the obstruction;
advancing a guide catheter to a second location proximal of the obstruction;
retracting the first catheter so as to expand and deploy the clot engagement element distal of the first catheter within the obstruction; and
withdrawing the clot engaging element into a lumen of at least one of the second catheter or the guide catheter to retrieve the clot engagement element and the obstruction from the blood vessel.