Cyclical pressure coronary assist pump
AssigneeSciMed Life Systems, Inc.
InventorBryan Leasure
Life of this patent
Estimating the term…
Abstract
An intravascular pump, which may be a left ventricle assist device, comprising a wall defining a pumping chamber, the wall support by struts, the struts attached to or part of an actuation system to move the wall from an expanded position to a contracted position and back to operated the pump, the actuation system may be electrically activated shape memory alloy struts, electroactive polymeric struts, or may be a balloon, struts attached to a slidable member or other suitable system.
Claims20
A medical device, for use in a patient's vasculature comprising
- a blood-impermeable wall defining a cavity having a lumen through the wall at a first end opposite a second end, the wall including a flexible section;
- a frame attached to the wall;
- an elongate member attached to the frame and extending through the cavity;
- and
- an actuation system comprising one or more actuating members, the one or more actuating members connecting the frame to the elongate member, the actuation system configured to move the frame between an expanded position and a contracted position.
A medical device, for use in a patient's vasculature comprising
- a blood-impermeable wall defining a cavity having a lumen through the wall at a first end opposite a second end, the wall including a flexible section;
- a frame attached to the wall;
- an elongate member attached to the frame and extending through the cavity;
- and
- an actuation system comprising one or more actuating members, the one or more actuating members connecting the frame to the elongate member, the actuation system configured to move the frame between an expanded position and a contracted position;
- wherein the actuation system comprises a balloon and an inflation lumen fluidly attached to the balloon.
A medical device, for use in a patient's vasculature comprising
- a blood-impermeable wall defining a cavity having a lumen through the wall at a first end opposite a second end, the wall including a flexible section;
- a frame attached to the wall;
- an elongate member attached to the frame and extending through the cavity;
- and
- an actuation system comprising one or more actuating members, the one or more actuating members connecting the frame to the elongate member, the actuation system configured to move the frame between an expanded position and a contracted position;
- wherein the cavity has a volume of between 40 cc and 100 cc.
A medical device, for use in a patient's vasculature comprising
- a blood-impermeable wall defining a cavity having a lumen through the wall at a first end opposite a second end, the wall including a flexible section;
- a frame attached to the wall;
- an elongate member attached to the frame and extending through the cavity;
- and
- an actuation system comprising one or more actuating members, the one or more actuating members connecting the frame to the elongate member, the actuation system configured to move the frame between an expanded position and a contracted position;
- the medical device further comprising an anti-clotting agent.
An intravascular pump, comprising:
- a flexible wall defining a pumping chamber;
- and
- a pumping mechanism including a frame attached to the wall wherein the pumping mechanism comprises:
- an elongate member attached to the frame and extending through the chamber;
- and an actuation system comprising one or more actuating members, the one or more actuating members connecting the frame to the elongate member, the actuation system configured to move the frame between an expanded position and a contracted position.
Dependencies are inferred from the claim text.