Patent ID: 11883043
Assignee: DEPUY SYNTHES PRODUCTS, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 6:
7. A system for retrieving an obstruction in a blood vessel, the system comprising:
an outer catheter comprising a lumen therethrough; and
a clot retrieval device disposed within the outer catheter and translatable through the lumen of the outer catheter, the clot retrieval device comprising:
an elongate flexible member comprising a distal end;
an expandable framework, configured to engage the obstruction, expandable from a collapsed delivery configuration to an expanded configuration, the expandable framework comprising a proximal portion affixed to the distal end of the elongate flexible member and a tubular portion extending distally from the proximal portion, the tubular portion comprising an elongated tubular shape when the expandable framework is in the expanded configuration, and the proximal portion tapering proximally from the tubular portion to the distal end of the flexible member when the expandable framework is in the expanded configuration; and
a fluid-impermeable membrane affixed to the proximal portion of the expandable framework when the expandable framework is in the expanded configuration, the fluid-impermeable membrane further affixed to the tubular portion and extending into the lumen of the outer catheter when the expandable framework is in the expanded configuration, the fluid-impermeable membrane terminating distal of a proximal end of the expandable framework, and the fluid-impermeable membrane comprising a funnel shape around the proximal portion of the expandable framework when the expandable framework is in the expanded configuration,

wherein the expandable framework further comprises a closed distal end portion extending distally from the tubular portion and radially inward to a central axis of the tubular portion.