Systems, devices, and methods for controllably and selectively occluding, restricting, and diverting flow within a patient's vasculature
AssigneeRelief Cardiovascular, Inc.
InventorsArshad Quadri, J. Brent Ratz, Alexander H. Cooper, Juliet Laura Schwartz
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Abstract
Various systems, devices, components and methods are disclosed for controllably and selectively occluding, restricting, and/or diverting flow within a patient's vasculature. The flow restriction systems can include an implant having a flow restrictor and an implantable controller having an actuator for actuating the flow restrictor. The flow restriction systems can also include an external device for controlling operation of the implant via the implantable controller.
Claims28
A method of controllably and selectively occluding, restricting and/or diverting flow of a patient's vasculature, the method comprising:
- measuring a vena cava pressure from an implant implanted in a vena cava of a patient, the implant having an expandable body having a distal end and a proximal end and a flow restrictor extending distally of the distal end of the expandable body, the flow restrictor positioned caudal of the expandable body in the vena cava;
- executing, by an implantable controller, an instruction to activate the implant based on the measured vena cava pressure and not based on a measurement of heart rate;
- and
- activating the implant;
- wherein activating the implant causes the flow restrictor of the implant to at least partially occlude blood flow through the vena cava.
A method of controllably and selectively occluding, restricting and/or diverting flow of a patient's vasculature, the method comprising:
- executing on an implantable controller positioned within the patient an instruction to activate an implant implanted in the vasculature of the patient, the implant having an expandable body having a distal end and a proximal end and a flow restrictor extending distally of the distal end of the expandable body, the flow restrictor positioned upstream of the expandable body in regard to a direction of blood flow in the vasculature and configured to first receive blood flow as it enters the implant;
- and
- activating the implant;
- wherein activating the implant causes the flow restrictor of the implant to at least partially occlude blood flow through the vasculature.
Dependencies are inferred from the claim text.