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US 12,589,234 B2Granted
Intravascular blood pumps
AssigneeSupira Medical, Inc.
InventorsDaniel Varghai, Ari Ryan, Daniel Hildebrand, Mostafa Ghoreyshi
Life of this patent
Estimating the term…
Abstract
Catheter blood pumps that include collapsible blood conduits and one or more collapsible impellers. The catheter blood pumps include an outflow and an expandable flow diverter disposed in an outflow region. The expandable flow diverters can be completely proximal to a proximal end of the collapsible blood conduit.
Claims17
A method of directing outflow of an intravascular blood pump, comprising:
- expanding a collapsible blood pump from a collapsed configuration at a location within a subject, the expanding step including expanding a collapsible fluid conduit from a collapsed configuration and expanding one or more collapsible impellers, the one or more impellers disposed at least partially within the collapsible fluid conduit;
- expanding an expandable flow diverter into an expanded configuration in which a flow diverting surface of the expandable flow diverter is axially positioned completely proximal to a proximal end of the fluid conduit and proximal to the one or more impellers;
- and
- rotating the at least one impeller to cause blood to move from a fluid conduit distal end towards the fluid conduit proximal end.
1 more element
A method of directing outflow of an intravascular blood pump >comprising:
- expanding a collapsible blood pump from a collapsed configuration at a location within a subject,
- the expanding step including expanding a collapsible fluid conduit from a collapsed configuration, expanding one or more collapsible impellers disposed at partially within the collapsible fluid conduit, and expanding one or more proximal fluid conduit struts;
- expanding an expandable flow diverter into an expanded configuration in which at least a portion of the flow diverter is disposed proximal to the fluid conduit and at least a portion of the flow diverter is secured to the plurality of struts, whereby expanding the one or more proximal fluid conduit struts causes the flow diverter to at least partially expand towards the expanded configuration;
- and
- rotating the at least one impeller to cause blood to move from a fluid conduit distal end towards the fluid conduit proximal end.
2 more elements
A method of directing outflow of an intravascular blood pump comprising:
- expanding a collapsible blood pump from a collapsed configuration at a location within a subject, the expanding step including expanding a collapsible fluid conduit from a collapsed configuration, expanding one or more collapsible impellers disposed at partially within the collapsible fluid conduit, and optionally expanding one or more proximal fluid conduit struts;
- expanding an expandable flow diverter into an expanded configuration in which at least a portion of the flow diverter is disposed proximal to the fluid conduit, wherein expanding the flow diverter comprises expanding the expandable flow diverter into an expanded configuration in which a radially outermost dimension of the flow diverter is at least 25% of a radially outermost dimension of the one or more impellers, optionally at least 50%, optionally at least 55%, optionally at least 60%, optionally at least 65%, optionally at least 70%, optionally at least 75%, optionally at least 80%, optionally at least 85%, optionally at least 90%, optionally at least 95%, optionally at least 100%, and optionally no more than 300%;
- and
- rotating the at least one impeller to cause blood to move from a fluid conduit distal end towards the fluid conduit proximal end.
1 more element
Dependencies are inferred from the claim text.