Clot retrieval device for removing heterogeneous clots from a blood vessel

1. A clot retrieval device for retrieving a clot from a blood vessel, comprising:

a caged portion comprising:

a distal end;

a proximal end;

an inner cage comprising a network of inner struts; and

an outer cage comprising a network of struts,

the inner cage and the outer cage comprising a delivery configuration within a microcatheter and a deployed configuration distal of the microcatheter operable to retrieve at least a portion of the clot; and

a distal pinching portion positioned distal of the distal end of the caged portion, and

a proximal pinching portion positioned proximal of the proximal end of the caged portion,

each pinching portion comprising at least one pinching cell comprising a collapsed state and an expanded state distal of the microcatheter operable to tweeze the at least a portion of the clot.

2. The clot retrieval device of claim 1 , wherein each pinching cell further comprises:

a plurality of strut members configured to actuate and pinch the at least a portion of the clot from the blood vessel between the plurality of strut members.

3. The clot retrieval device of claim 2 , wherein the plurality of strut members are positioned about a central strut member of the plurality of strut members, each strut member joined at common respective proximal and distal ends.

4. The clot retrieval device of claim 2 , each pinching cell operable to tweeze the at least a portion of the clot on movement from the collapsed state to a clot pinching state of the expanded state until the at least a portion of the clot is compressed between the plurality of strut members.

5. The clot retrieval device of claim 2 , wherein each pinching cell comprises a ratio of a diameter of each pinching cell between the collapsed state and a clot pinching state of the expanded state of approximately 1.5:1 to 4:1.

6. The clot retrieval device of claim 2 , wherein each pinching cell comprises a radiopaque marker disposed on the plurality of strut members.

7. The clot retrieval device of claim 1 , wherein each pinching cell further comprises:

a pinching structure comprising a plurality of strut members and a central strut member of the plurality of strut members;

a first collar comprising a first collar lumen; and

a second collar comprising a second collar lumen; and

wherein the plurality of strut members and the central strut member connect the first collar to the second collar.

8. The clot retrieval device of claim 1 , wherein the inner cage is a plurality of pinching cells operable to tweeze the at least a portion of the clot.

9. The clot retrieval device of claim 8 , wherein each cell of the plurality of pinching cells further comprises:

a pinching structure comprising a plurality of strut members and a central strut member of the plurality of strut members;

a first collar comprising a first collar lumen; and

a second collar comprising a second collar lumen; and

wherein the plurality of strut members and the central strut member connect the first collar to the second collar.

10. The clot retrieval device of claim 9 , wherein the plurality of pinching cells comprise at least one radiopaque marker disposed on the pinching structure.

11. The clot retrieval device of claim 8 , wherein each cell of the plurality of pinching cells further comprises the collapsed state and the expanded state distal of the microcatheter operable to tweeze the at least a portion of the clot.

12. The clot retrieval device of claim 1 , further comprising:

an elongated member comprising a distal end connected to a proximal end of the proximal pinching portion, the elongated member operable to move the clot retrieval device in a distal or proximal direction.

13. The clot retrieval device of claim 1 , wherein the network of struts of the outer cage are connected to the network of inner struts of the inner cage.