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US 2022/0023025 A1Published application
Method of isolating the cerebral circulation during a cardiac procedure
AssigneeClaret Medical, Inc.
InventorsDaniel W. Fifer, Randall T. Lashinski, Antony J. Fields, Michael Lee
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Abstract
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.
Claims21
(canceled)
An embolic protection device for isolating the cerebral vasculature, comprising:
- a proximal sheath having a proximal end, a distal end, and a central lumen extending therethrough;
- a first filter attached to the proximal sheath;
- a distal sheath extending through the central lumen, the distal sheath having a guidewire lumen extending therethrough, the distal sheath having a proximal section configured to be articulated into a first curve extending in a first direction, and a distal section configured to be articulated into a second curve in a second direction opposite the first direction;
- and
- a second filter attached to the distal sheath.
2 more elements
An embolic protection device for isolating the cerebral vasculature, comprising:
- a proximal sheath having a proximal end, a distal end, and a central lumen extending therethrough;
- a first filter attached to the proximal sheath, the first filter having a distally facing opening;
- a distal sheath extending through the central lumen, the distal sheath having a guidewire lumen extending therethrough, the distal sheath actuatable from a first, linear configuration to a second, curved configuration, wherein when in the curved configuration, the distal sheath defines a compound curve including a first curve in a proximal section and a second curve in a distal section, where the first and second curves extend in opposite directions;
- a pull wire extending through the guidewire lumen of the distal sheath, the pull wire fixed to a distal portion of the distal section, the pull wire configured such that proximally pulling the pull wire first causes the proximal section of the distal sheath to curve in a first direction, and continued pulling the pull wire next causes the distal section to curve in a second direction opposite the first direction;
- and
- a second filter attached to the distal sheath, the second filter having a proximally facing opening.
3 more elements
Dependencies are inferred from the claim text.