Percutaneous circulatory support system having improved torque and blood flow
AssigneeBoston Scientific Scimed, Inc.
InventorsNathan Edwards, Steven R. Larsen
Life of this patent
Estimating the term…
Abstract
Various aspects of the present disclosure are directed towards apparatuses, systems, and methods that system for delivering a blood pump. The system may include a blood pump that may include one or more impellers configured to cause blood to flow through the pump. The system may also include one or more guidewires. The guidewires may include one or more proximal sections and one or more distal sections, and the distal sections may have first dimensions and the proximal sections may have second dimensions, and the first dimensions may be greater than the second dimensions. The guidewires may also be tapered, geometrically shaped, have a curved profile, a combination thereof, or other configurations.
Claims14
A percutaneous circulatory support system, comprising:
- a guidewire comprising:
- a distal section having a first transverse dimension;
- and
- a proximal section having a second transverse dimension, the second transverse dimension being less than the first transverse dimension;
- a blood pump configured to be coupled to and moved along the guidewire to a target location within a patient, the blood pump comprising:
- an impeller housing having a third transverse dimension;
- a motor housing coupled to the impeller housing, the motor housing having a fourth transverse dimension, the fourth transverse dimension being less than the third transverse dimension;
- an impeller disposed within the impeller housing, the impeller configured to rotate relative to the impeller housing to cause blood to flow through the impeller housing of the blood pump to function as a circulatory support device when positioned at the target location;
- and
- a motor disposed within the motor housing and configured to rotatably drive the impeller.
A percutaneous circulatory support system, comprising:
- a guidewire comprising a proximal section having a guidewire proximal section transverse dimension;
- a blood pump configured to be coupled to and moved along the guidewire to a target location within a patient, the blood pump comprising:
- an impeller assembly housing having an impeller assembly housing transverse dimension and an impeller assembly disposed within the impeller assembly housing, the impeller assembly including an impeller configured to cause blood to flow through the pump as a circulatory support device when positioned at the target location;
- and
- a motor housing coupled to the impeller housing, the motor housing having a motor housing transverse dimension, the motor housing having a motor disposed therein and configured to rotatably drive the impeller;
- wherein:
- dih≥dmh+2dgps;
- where
- dih is the impeller assembly housing transverse dimension;
- dmh is the motor housing transverse dimension;
- and
- dgps is the guidewire proximal section transverse dimension.
Dependencies are inferred from the claim text.