Patent ID: 11944343
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 15:
16. A medical device comprising:
an elongated body defining an inner lumen and comprising an expandable member disposed at a distal portion of the elongated body, wherein the expandable member defines an expandable distal mouth of the elongated body, the expandable distal mouth being open to the inner lumen;
a rotatable cutting tool located within the inner lumen of the elongated body, the rotatable cutting tool configured to segment a thrombus into smaller pieces while an aspiration force pulls the thrombus proximally into the inner lumen; and
a stopper configured to limit movement of the cutting tool distally past a distal end of the expandable member, wherein the stopper is configured to engage with a lip extending radially inward from an interior surface of the elongated body; and
an intermediate structure oriented radially between the rotatable cutting tool and the interior surface of the elongated body, the intermediate structure configured to prevent the cutting tool from contacting the interior surface of the elongated body and to retain the cutting tool in an approximately radially central position within the inner lumen.