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US 2013/0096606 A1Published application
Embolic protection devices and related systems and methods
OwnerWilliam C. Bruchman, Edward H. Cully +3inventors
InventorsWilliam C. Bruchman, Edward H. Cully, Cody L. Hartman, Joshua J. Lovekamp, Benjamin M. Trapp
Life of this patent
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Abstract
According to one aspect of the disclosure, an embolic protection device is provided comprising an elongate element having a deflector at its distal end. The embolic protection device is generally configured to redirect and/or funnel embolic debris and permit at least a portion of the blood, no longer containing the redirected and/or funneled embolic debris, to perfuse the surrounding vasculature and/or tissue.
Claims36
An embolic protection device configured for retrograde vascular delivery comprising:
- an elongate element having a proximal opening, a distal opening, and a lumen extending therethrough;
- and
- a deflector at the distal opening of the elongate element comprising a structural support element and deflector material covering the structural support element, the deflector configured to redirect embolic debris into the lumen.
An embolic protection device configured for retrograde vascular delivery comprising:
- an elongate element having a proximal opening, a distal opening, and a lumen extending therethrough;
- and
- a deflector at the distal opening of the elongate element configured to redirect embolic debris into the lumen,
- wherein the elongate element comprises at least one window having a greater porosity than an adjacent portion of the elongate element, the at least one window further comprising a one-way valve configured to permit perfusion external to the elongate element.
1 more element
An embolic protection device configured for retrograde vascular delivery comprising:
- an elongate element having a proximal opening, a distal opening, and a lumen extending therethrough;
- and
- a deflector at the distal opening of the elongate element comprising a structural support element and deflector material covering the structural support element, the deflector configured to redirect embolic debris into the lumen, wherein the deflector material comprises a plurality of pores,
- wherein the deflector is configured to be deconstructed in situ by applying tension to the structural support element.
1 more element
A multi-stage embolic protection system configured for retrograde vascular delivery comprising:
- an elongate element having a proximal opening, a distal opening, and a lumen extending therethrough;
- a deflector at the distal opening of the elongate element comprising a structural support element and deflector material covering the structural support element, the deflector configured to redirect embolic debris into the lumen, wherein the deflector material comprises a plurality of pores;
- a guide element extending through the lumen and the deflector and having a constraining element at its distal end;
- and
- a guidewire extending through the guide element,
- wherein after a first stage deployment, a distal end of the deflector is radially restrained by the constraining element;
- and
- wherein during a second stage deployment, advancement of the guide element releases the constraining element from the distal end of the deflector.
5 more elements
A multi-stage embolic protection system configured for retrograde vascular delivery comprising:
- an elongate element having a proximal opening, a distal opening, and a lumen extending therethrough;
- a deflector at the distal opening of the elongate element comprising a structural support element and deflector material covering the structural support element, the deflector configured to redirect embolic debris into the lumen, wherein the deflector material comprises a plurality of pores;
- a guide element extending through the lumen and the deflector;
- and
- a constraining element,
- wherein a first stage deployment comprises a proximal portion of the deflector being deployed while a distal end of the deflector is radially restrained by the constraining element;
- and
- wherein a second stage deployment comprises the proximal portion and the distal end being deployed.
5 more elements
A method for embolic protection in the aortic arch comprising the steps of:
- providing a device comprising:
- an elongate element having a proximal opening, a distal opening, and a lumen extending therethrough;
- a deflector at the distal opening of the elongate element comprising a structural support element and deflector material covering the structural support element, the deflector configured to redirect embolic debris into the lumen, wherein the deflector material comprises a plurality of pores;
- and
- a guidewire;
- advancing the device to the aortic arch of a patient's vasculature;
- deploying a proximal portion of the deflector, wherein a distal end of the deflector is positioned between the aortic valve and the brachiocephalic artery, and wherein the distal end of the deflector is radially restrained;
- advancing the guidewire across the aortic valve;
- releasing the distal end of the deflector;
- performing a therapeutic interventional procedure;
- aspirating embolic debris from the proximal opening of the elongate element;
- partially withdrawing the device from the patient's vasculature, wherein the distal end of the deflector is positioned proximal to the left subclavian artery;
- deconstructing the deflector in situ by applying tension to a structural support element;
- and
- completely withdrawing the device from the patient's vasculature.
12 more elements
An embolic protection device comprising:
- an elongate element having a proximal end, a distal end, and a lumen extending therethrough;
- and
- a deflector at the distal opening of the elongate element,
- wherein the elongate element and the deflector are impermeable to embolic debris greater than about 100 μm;
- and
- wherein at least one of the elongate element and the deflector is configured to permit antegrade and retrograde perfusion of blood therethrough.
3 more elements
The embolic protection device of claim 14, wherein the deflector is configured to not capture or retain embolic debris.
A method for embolic protection comprising:
- delivering an embolic protection device to a treatment site, wherein a deflector at a distal end of an elongate element of the embolic protection device is restrained by a sheath in a radially collapsed delivery configuration;
- removing the sheath from the deflector and thereby deploying the deflector into a radially expanded funneling configuration;
- inserting a secondary endovascular device through a working lumen extending through the elongate element;
- aspirating embolic debris redirected and/or funneled by the embolic protection device;
- removing the secondary endovascular device;
- and
- removing the embolic protection device.
4 more elements
Dependencies are inferred from the claim text.