US 6,168,615 A · Method and apparatus for occlusion and reinforcement of aneurysms

Abstract

The vasoocclusive apparatus can be used in a method of interventional therapy and vascular surgery by inserting the apparatus into a portion of a vasculature, for treatment of a body vessel such as an aneurysm in conjunction with a secondary vasoocclusive device to be placed within the vessel. The vasoocclusive apparatus includes a plurality of strut members connected together at a central hub that extend from a collapsed position to an expanded configuration to cross the neck of the aneurysm, dividing the neck into smaller openings, allowing the deployment of the secondary vasoocclusive device within the aneurysm but preventing migration of the secondary vasoocclusive device from the aneurysm. The strut members can be made from a twisted cable of strands of a superelastic material, such as a shape memory nickel titanium alloy, with at least one radiopaque strand. A shape memory collar is provided for detachably mounting the vasoocclusive apparatus to a pusher member and for detaching the vasoocclusive apparatus for deployment when a desired placement within an aneurysm to be treated and out of a parent vessel is achieved.

Claims40

Dependent claims

An occlusive apparatus for treatment of a body vessel, the vessel having a dome portion and a neck opening into another vessel, the apparatus comprising:

a plurality of strut members centrally connected together that are adapted to be deployed within the vessel and that extend radially from a collapsed configuration to an expanded configuration to cross the neck of the vessel, dividing the neck into smaller openings.

A method of closing and occluding an opening of an aneurysm from a parent blood vessel, comprising the steps of:

attaching an occlusive apparatus having radial members extending from a central hub to the distal end of a linear pusher device;
enclosing the pusher device and occlusive apparatus in a lumen of a catheter, with the pusher device proximal of the occlusive apparatus;
positioning the catheter so that the distal opening of the catheter is in the opening between the aneurysm and the parent blood vessel;
pushing the occlusive apparatus into the aneurysm by extending the pusher device towards the distal end of the catheter;
and
disconnecting the occlusive apparatus from the pusher device, thereby deploying the occlusive apparatus within the aneurysm and at least partially occluding the opening between the aneurysm and the parent blood vessel

3 more elements

A method of closing and occluding an opening of an aneurysm from a parent blood vessel, comprising the steps of:

attaching a first occlusive apparatus having radial members extending from a central hub to the distal end of a linear pusher device;
enclosing the pusher device and first occlusive apparatus in a lumen of a catheter, with the pusher device proximal of the first occlusive apparatus;
positioning the catheter so that the distal opening of the catheter is in the opening between the aneurysm and the parent blood vessel;
pushing the first occlusive apparatus into the aneurysm by extending the pusher device towards the distal end of the catheter;
disconnecting the first occlusive apparatus from the pusher device, thereby deploying the first occlusive apparatus within the aneurysm and at least partially occluding the opening between the aneurysm and the parent blood vessel;
attaching a secondary occlusive apparatus to the distal end of a linear pusher device;
enclosing the pusher device and secondary occlusive apparatus in a lumen of a catheter, with the pusher device proximal of the secondary occlusive apparatus;
positioning the catheter so that the distal opening of the catheter is in the opening between the aneurysm and the parent blood vessel;
pushing the secondary occlusive apparatus into the aneurysm through said first occlusive apparatus by extending the pusher device towards the distal end of the catheter;
and
disconnecting the secondary occlusive apparatus from the pusher device, thereby deploying the secondary occlusive apparatus within the aneurysm, whereby said first occlusive apparatus prevents migration of said secondary vasoocclusive device from the aneurysm into the parent blood vessel.

8 more elements

Dependencies are inferred from the claim text.

Method and apparatus for occlusion and reinforcement of aneurysms

Life of this patent

Method and apparatus for occlusion and reinforcement of aneurysms

Life of this patent

Abstract

Claims40