Systems and methods for protecting the cerebral vasculature
AssigneeClaret Medical, Inc.
InventorsWhittaker Ian Hamill, Shih-hsiung Albert Yuan, Daniel W. Fifer, David J. Blaeser
Life of this patent
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Abstract
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.
Claims17
An embolic protection system for isolating the cerebral vasculature, the system comprising:
- a first protection device having a proximal portion configured to remain outside a body and a distal portion, the distal portion comprising:
- a proximal sheath;
- a proximal self-expanding filter assembly radially within the proximal sheath;
- a distal sheath;
- and
- a distal self-expanding filter assembly radially within the distal sheath;
- a second protection device having a proximal portion configured to remain outside the body and a distal portion, the distal portion comprising:
- an outer sheath;
- a wire radially within the outer sheath;
- and
- a third filter assembly radially within the outer sheath and coupled to the wire,
- wherein the third filter assembly of the second protection device has a generally tubular self-expanding main body portion defining a lumen extending from a distal end to a proximal end thereof.
An embolic protection system for isolating the cerebral vasculature, the system comprising:
- a first protection device having a proximal portion configured to remain outside a body and a distal portion, the distal portion comprising:
- a proximal sheath;
- a proximal self-expanding filter assembly radially within the proximal sheath;
- a distal sheath;
- and
- a distal self-expanding filter assembly radially within the distal sheath;
- a second protection device having a proximal portion configured to remain outside the body and a distal portion, the distal portion comprising:
- an outer sheath;
- an inner member radially within the outer sheath;
- and
- a third filter assembly radially within the outer sheath and coupled to a distal end of the inner member, the third filter assembly including an expandable support structure and a filter element,
- wherein the expandable support structure comprises a plurality of longitudinally extending legs, the filter element coupled to the plurality of longitudinally extending legs adjacent to a distal end of the filter element.
An embolic protection system for isolating the cerebral vasculature, the system comprising:
- a first protection device having a proximal portion configured to remain outside a body and a distal portion, the distal portion comprising:
- a proximal sheath;
- a proximal self-expanding filter assembly radially within the proximal sheath;
- a distal sheath;
- and
- a distal self-expanding filter assembly radially within the distal sheath;
- a second protection device having a proximal portion configured to remain outside the body and a distal portion, the distal portion comprising:
- an outer sheath;
- and
- a third filter assembly coupled to and extending distally from a distal end of the outer sheath, the third filter assembly including an expandable support structure and a filter element,
- wherein the expandable support structure comprises a plurality of legs, a distal ring, and a pull wire, wherein a distal end of each leg of the plurality of legs is coupled to the distal ring and a proximal end of each leg of the plurality of legs is coupled to the distal end of the outer sheath.
Dependencies are inferred from the claim text.