Vascular filter having articulation region and methods of use in the ascending aorta
AssigneeIncept, LLC
InventorsFarhad Khosravi, L. N. Hopkins
Life of this patent
Estimating the term…
Abstract
Apparatus and methods are provided for use in filtering emboli from a vessel such as the ascending aorta, wherein a vascular device comprises a support hoop having an articulation region connected near a distal end of an elongated member, a blood permeable sac affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac, a guide wire, and a delivery sheath. 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.
Claims20
Apparatus suitable for filtering emboli comprising:
- an elongated member having a distal region;
- a support hoop attached to the distal region, the support hoop having an articulation region;
- and
- a blood permeable sac affixed to the support hoop so that the support hoop forms a distally-facing mouth of the blood permeable sac;
- a guide wire slidably attached to the elongated member;
- and
- a delivery sheath having a proximally-facing cavity for accepting the elongated member, support hoop and blood permeable sac, and a lumen extending through the cavity to permit the guide wire to pass therethrough.
A method of trapping emboli or thrombus during a medical procedure, the method comprising:
- providing apparatus comprising an elongated member, a support hoop having an articulation region coupled to the elongated member, a blood permeable sac affixed to the support hoop so that the support hoop forms a distally-facing mouth of the blood permeable sac, a guide wire slidably attached to the elongated member having a distal region with a stop, and a delivery sheath having a cavity for accepting the elongated member, support hoop and blood permeable sac;
- advancing the guide wire to a desired location within a patient's vessel;
- positioning the elongated member, support hoop, and blood permeable sac in a contracted delivery state within the delivery sheath;
- advancing the elongated member and delivery sheath over the guide wire until the delivery sheath contacts the stop;
- and
- with the guide wire held stationary, withdrawing the elongated member to withdraw the support hoop from the cavity so that the apparatus expands to a deployed state wherein the support hoop seals against the vessel wall.
Apparatus suitable for filtering emboli comprising:
- an elongated member having a distal region;
- a support hoop attached to the distal region, the support hoop having an articulation region;
- a blood permeable sac affixed to the support hoop so that the support hoop forms a distally-facing mouth of the blood permeable sac;
- a guide wire slidably attached to the elongated member;
- and
- a delivery sheath having a proximally-facing cavity for accepting the elongated member, support hoop and blood permeable sac.
Dependencies are inferred from the claim text.