Vascular device having one or more articulation regions and methods of use
First Claim
1. Apparatus suitable for filtering emboli or performing thrombectomy or embolectomy comprising:
- an elongated member having a distal region;
at least one support hoop attached to the distal region, each support hoop having a reduced-thickness articulation region; and
a blood permeable sac affixed to the one or more support hoops so that the at least one support hoop form a mouth of the blood permeable sac.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatus and methods are provided for use in filtering emboli from a vessel and performing thrombectomy and embolectomy, wherein a vascular device comprises one or more support hoops, each having an articulation region connected near a distal end of a guide wire, and a blood permeable sac affixed to the one or more support hoops so that the support hoops form a mouth of the blood permeable sac. Each articulation region comprises a reduced thickness region of the support hoop that prevents kinks from forming in the support hoop when the apparatus is contracted to its delivery state, and curved regions that close the mouth of the sac to prevent material escaping from the sac when the apparatus is collapsed for removal.
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Citations
24 Claims
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1. Apparatus suitable for filtering emboli or performing thrombectomy or embolectomy comprising:
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an elongated member having a distal region;
at least one support hoop attached to the distal region, each support hoop having a reduced-thickness articulation region; and
a blood permeable sac affixed to the one or more support hoops so that the at least one support hoop form a mouth of the blood permeable sac. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
a nose cone disposed on the distal region of the elongated member distal to the support hoop or hoops;
an a delivery sheath having a first lumen for accepting the elongated member, the at least one support hoop and the blood permeable sac, and a second lumen for accepting a guide wire.
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17. The apparatus of claim 16 wherein the first lumen of the delivery sheath opens to a skive in a lateral wall of the delivery sheath in a distal region of the delivery sheath.
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18. The apparatus of claim 16 wherein the second lumen of the delivery sheath opens to a skive in a lateral wall of the delivery sheath in a distal region of the delivery sheath.
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19. The apparatus of claim 1 further comprising a balloon catheter.
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20. A method of trapping emboli or thrombus during a medical procedure, the method comprising:
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providing apparatus comprising an elongated member, at one support hoop, each of the at least one support hoop having a reduced-thickness articulation region coupled to the elongated member, and a blood permeable sac affixed to the at least one support hoop so that the at least one support hoop form a mouth of the blood permeable sac;
positioning the apparatus in a contracted delivery state within a delivery sheath;
advancing the delivery sheath to a desired location within a patient'"'"'s vessel; and
withdrawing the delivery sheath to expand the apparatus to a deployed state wherein each support hoop seals against the vessel wall. - View Dependent Claims (21, 22, 23, 24)
providing an interventional device comprising a guide wire lumen;
percutaneously and transluminally advancing the interventional device along the elongated member to a position within the patient'"'"'s vessel for performing a medical procedure at a location proximal of the apparatus;
performing the medical procedure, the apparatus catching emboli released when the medical procedure is performed;
retracting the apparatus into a collapsed configuration within the guide lumen of the interventional device; and
removing the interventional device and apparatus from the patient'"'"'s vessel.
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22. The method of claim 21, wherein retracting the apparatus within the guide wire lumen comprises folding each support hoop at the articulation region to close the mouth of the blood permeable sac.
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23. The method of claim 20, further comprising, prior to advancing the delivery sheath to a desired location within a patient'"'"'s vessel:
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providing a catheter having a balloon in a distal region;
inserting the catheter so that the balloon is disposed proximally of a lesion; and
inflating the balloon to arrest antegrade flow through the vessel, wherein advancing the delivery sheath to a desired location within a patient'"'"'s vessel comprises advancing the delivery sheath through an interior lumen of the catheter so that a distal region of the delivery sheath is disposed distal to the lesion.
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24. The method of claim 23, further comprising, after withdrawing the delivery sheath to expand the apparatus, deflating the balloon to re-establish antegrade flow through the vessel.
Specification