Vascular device having articulation region and methods of use
First Claim
1. Apparatus suitable for filter emboli or performing thrombectomy or embolectomy comprising:
- an elongated member having a distal region;
a support structure attached to the distal region, the support structure having an articulation region interposed between curved regions that orient the articulation region relative to a vessel wall when the support structure is deployed within a vessel; and
a blood permeable sac affixed to the support structure so that the support structure forms a mouth of the blood permeable sac, wherein the opposite sides of the support structure close towards one another when the apparatus is contracted to a contracted configuration.
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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 a support hoop having an articulation region connected near a distal end of a guide wire, and a blood permeable sac affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac. The 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.
661 Citations
43 Claims
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1. Apparatus suitable for filter emboli or performing thrombectomy or embolectomy comprising:
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an elongated member having a distal region;
a support structure attached to the distal region, the support structure having an articulation region interposed between curved regions that orient the articulation region relative to a vessel wall when the support structure is deployed within a vessel; and
a blood permeable sac affixed to the support structure so that the support structure forms a mouth of the blood permeable sac, wherein the opposite sides of the support structure close towards one another when the apparatus is contracted to a contracted configuration. - 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 structure; and
a delivery sheath having a first lumen for accepting the elongated member, support structure and 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, a support structure having an articulation region coupled to the elongated member, and a blood permeable sac affixed to the support structure so that the support structure forms 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;
withdrawing the delivery sheath to expand the apparatus to a deployed state wherein the support structure seals against the vessel wall;
providing an interventional device for performing a medical procedure, the interventional device comprising a guide wire lumen;
percutaneously and transluminally advancing the interventional device along the elongated member to position the interventional device within the patient'"'"'s vessel at a location proximal of the apparatus; and
performing the medical procedure, the apparatus catching emboli released when the medical procedure is performed. - View Dependent Claims (21, 22, 23, 24, 25)
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 the support structure 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.
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25. The method of claim 20 further comprising:
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partially 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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26. Apparatus suitable for filtering emboli or performing thrombectomy or embolectomy comprising:
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an elongated member having a distal region;
a support structure comprising a super-elastic material attached to the distal region, the support structure having an articulation region interposed between curved regions that orient the articulation region relative to a vessel wall when the support structure is deployed within a vessel; and
a blood permeable sac affixed to the support structure so that the support structure forms a mouth of the blood permeable sac. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
a nose cone disposed on the distal region of the elongated member distal to the support structure; and
a delivery sheath having a first lumen for accepting the elongated member, support structure and blood permeable sac, and a second lumen for accepting a guide wire.
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41. The apparatus of claim 40 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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42. The apparatus of claim 40 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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43. The apparatus of claim 26 further comprising a balloon catheter.
Specification