Multi-filter endolumenal methods and systems for filtering fluids within the body. In some embodiments a multi-filter blood filtering system captures and removes particulates dislodge or generated during a surgical procedure and circulating in a patient's vasculature. In some embodiments a dual filter system protects the cerebral vasculature during a cardiac valve repair or replacement procedure.

Disclosed is a novel filter and delivery means. The device described within will not interfere with standard practice and tools used during standard surgical procedures and tools such as cannulas, clamps or dissection instruments including valve replacement sizing gages or other surgical procedures where the patient must be put on a heart-lung machine cross-clamping the aorta.

A clot encasement and removal device for removing a vascular obstruction is disclosed. The encasement device comprises proximal and distal capture members and a central stabilizer. The central stabilizer provides several points of contact for interacting with and manipulating an intravascular obstruction. The central stabilizer may be coupled to the distal capture member, allowing the central stabilizer and distal capture member to be manipulated in unison. The central stabilizer may reside on a distinct delivery wire, enabling independent control of proximal and distal capture members and the central stabilizer. The proximal capture member may comprise a furrowed delivery wire to enable retraction of at least a portion of the central stabilizer within the proximal capture member.

Vascular filters and deflectors and methods for filtering bodily fluids. A blood filtering assembly can capture embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature. A blood deflecting assembly can deflect embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature.

An implantable device includes an outer tubular member defining a longitudinal axis and a lumen. The outer tubular member includes: an outer wall portion having a plurality of first strands defining a plurality of first openings therebetween, the outer wall portion having a first porosity; and an inner baffle portion disposed within the lumen, the inner baffle portion including a plurality of second strands defining a plurality of second openings therebetween, the inner baffle portion having a second porosity that is lower than the first porosity of the outer wall portion.

Vascular filters and deflectors and methods for filtering bodily fluids. A blood filtering assembly can capture embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature. A blood deflecting assembly can deflect embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature.

A catheter for prevention of stroke by diverting and filtering the blood flow to carotid and vertebral arteries is provided. The catheter includes at least one balloon with an outer mesh cover that expands upon the balloon inflation and collapses upon balloon deflation. Partial inflation of balloons provides for full mesh expansion in the target vessel with resulting capturing and retrieval of embolic particles. The inflation of the balloon in the aortic arch or head vessels expands the balloon associated filtering mesh leading to both filtering and deflection of embolic particles from the cerebral circulation, while balloon deflation triggers the mesh collapse and promotes its recapturing and retrieval while minimizing the risk of spillage of captured emboli.

Embodiments of the present disclosure are directed to systems, methods and devices for providing, in some embodiments, embolic protection in a patient. For example, a medical device and implantation method for implanting a medical device within a blood vessel of a subject are provided and comprise, for example, providing a medical device configured for arrangement within a blood vessel, where the device comprises a filament configured to include a first device end (posterior) and a second device end (anterior), an un-deployed state including at least a portion configured to fit within a lumen of a needle, and a deployed state wherein the filament automatically forms a helix wound in a first direction as viewed from the first device end to the second device end, the helix optionally including at least one of a support portion and a filter portion.

A method for implanting a replacement heart valve within a diseased valve includes accessing a patient's heart by piercing a myocardium, advancing a guidewire into the patient's heart, and installing an access device in a wall of the heart. The access device preferably has at least one valve mechanism. A valve delivery device is advanced over the guidewire and through the access device. The valve delivery device has a replacement heart valve disposed along a distal end portion thereof. The replacement heart valve preferably includes an outer support structure and a leaflet valve disposed within the outer support structure. The replacement heart valve is radially expanded within the diseased valve. During implantation, the outer support structure conforms to a diameter of the diseased valve and the leaflet valve expands to a fixed size having a diameter smaller than the diameter of the diseased valve.

Single filter and multi-filter endolumenal methods and systems for filtering fluids within the body. In some embodiments a blood filtering system captures and removes particulates dislodged or generated during a surgical procedure and circulating in a patient's vasculature. In some embodiments a filter system protects the cerebral vasculature during a cardiac valve repair or replacement procedure.