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US 12,150,851 B2Granted
Method of isolating the cerebral circulation during a cardiac procedure
AssigneeClaret Medical, Inc.
InventorsDaniel W. Fifer, Randall T. Lashinski, Antony J. Fields, Michael Lee
Life of this patent
Estimating the term…
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.
Claims16
An embolic protection device for isolating a 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 including a first plurality of transverse slots configured to be compressed and 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, wherein each of the first plurality of transverse slots is formed in only a first side of the distal sheath, and a second, opposite side of the distal sheath in the proximal section is devoid of any slots;
- a second filter attached to the distal sheath;
- and
- 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 the first direction, and continued pulling the pull wire next causes the distal section to curve in the second direction.
3 more elements
An embolic protection device for isolating a 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, wherein the proximal section of the distal sheath includes a first plurality of transverse slots configured to be compressed when the proximal section is actuated into the curved configuration, wherein each of the first plurality of transverse slots is formed in only a first side of the distal sheath, and a second, opposite side of the distal sheath in the proximal section is devoid of any slots;
- 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.