Embolus extractor
AssigneeSciMed Life Systems, Inc.
InventorsMark Minh Phung, Pete Phong Pham, Mehran Bashiri, Beth Camins
Life of this patent
Estimating the term…
Abstract
An embolus extractor including elongate shaft having a proximal end and a distal end. The embolus extractor may include primary struts coupled to the distal end of the shaft. The struts may define a proximally disposed mouth. Additional secondary struts may be coupled along the elongate shaft to enhance the thrombus containing ability of the embolus extractor.
Claims40
An embolus extractor, comprising:
- an elongate shaft having a proximal end and a distal end;
- a plurality of primary struts, each strut having a proximal end and a distal end coupled to the distal end of the shaft;
- and
- the primary struts having a first position and a second position, wherein in the first position, the distal ends and the proximal ends of the primary struts are spaced at a first distance, and in the second position the distal ends and the proximal ends of the struts are spaced at a second distance, the second distance being less than the first distance.
An embolus extractor, comprising:
- an elongate shaft having a proximal end and a distal end;
- a first strut having a proximal end and a distal end, the proximal end of the strut being coupled to the shaft;
- and
- the strut having a first position and a second position, wherein in the first position, the distal end and the proximal end of the strut are spaced at a first distance, and in the second position, the distal end and the proximal end of the strut are spaced at a second distance being less than the first distance.
A method of withdrawing an embolus extractor, comprising the steps of:
- providing an embolus extractor having an elongate shaft, having a proximal end and a distal end and a plurarity of struts disposed at the distal end of the elongate shaft, the struts and at least a portion of the elongate shaft being disposed in a patient's vasculature, an embolus contained by the strut;
- providing a micro catheter having a distal end;
- advancing the micro catheter over at least a portion of the elongate shaft;
- collapsing the struts at least in part at the distal end of the micro catheter;
- and
- moving the micro catheter and embolus extractor together proximally.
A method of placing an embolus extractor at a vessel bifurcation where a proximal vessel region has a first diameter larger than a second diameter of a distal vessel region, comprising:
- providing an embolus extractor including an elongate shaft having a proximal end and a distal end;
- a plurality of struts having proximal and distal end region;
- and
- compressing the distal end region such that the distal end regions conform to the second diameter while the proximal end regions conform to the first diameter.
Dependencies are inferred from the claim text.