A device to reduce left ventricle afterload in a target blood vessel in a mammal includes a cushion configured for positioning within a lumen of the target blood vessel and receipt of a fluid and configured to contract during systole and expand during diastole, a reservoir having a cavity for receiving the fluid, and a conduit extending between and fluidically coupling the cushion and the reservoir, whereby during use fluid in the cushion is transferred to the reservoir during systole and returned to the cushion during diastole. The cushion has an annular cross section defining a central lumen for blood flow and is configured for positioning in the lumen of the target vessel abutting an inner wall of the target vessel, whereby during use blood flow is directed through the central lumen of the cushion.
A61M 60/139 - Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient’s body implantable via, into, inside, in line, branching on, or around a blood vessel inside a blood vessel, e.g. using grafting inside the aorta, e.g. intra-aortic balloon pumps
A61M 60/157 - Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient’s body implantable via, into, inside, in line, branching on, or around a blood vessel mechanically acting upon the inside of the patient’s blood vessel structure, e.g. contractile structures placed inside a vessel
A61M 60/295 - Balloon pumps for circulatory assistance
A61M 60/497 - Details relating to driving for balloon pumps for circulatory assistance
A61M 60/843 - Balloon aspects, e.g. shapes or materials
A61M 60/531 - Regulation using real-time patient data using blood pressure data, e.g. from blood pressure sensors
A device to reduce left ventricle afterload in a target blood vessel in a mammal comprises a cushion (2, 22) configured for positioning within a lumen of the target blood vessel (3) and receipt of a fluid (15) and configured to contract during systole and expand during diastole, a reservoir (4, 24) having a cavity for receiving the fluid (15), and a conduit (5) extending between and fluidically coupling the cushion and the reservoir, whereby during use fluid in the cushion is transferred to the reservoir during systole and returned to the cushion during diastole. The cushion (2, 22) has an annular cross section defining a central lumen (8) for blood flow and is configured for positioning in the lumen of the target vessel abutting an inner wall of the target vessel, whereby during use blood flow is directed through the central lumen of the cushion.
A61M 60/135 - Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient’s body implantable via, into, inside, in line, branching on, or around a blood vessel inside a blood vessel, e.g. using grafting
A61M 60/268 - Positive displacement blood pumps including a displacement member directly acting on the blood the displacement member being flexible, e.g. membranes, diaphragms or bladders
A61M 60/869 - Compliance chambers containing a gas or liquid other than blood to compensate volume variations of a blood chamber
patents
