Systems, devices, and methods for controllably and selectively occluding, restricting, and diverting flow within a patient's vasculature
Inventors
Quadri, Arshad • Ratz, J. Brent • Cooper, Alexander H. • Schwartz, Juliet Laura
Assignees
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Publication Number
US-11883030-B2
Publication Date
2024-01-30
Expiration Date
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.
Core Innovation
The invention relates to an implantable flow restriction system for selectively restricting flow through a lumen. The system includes an implant having an expandable body with a metallic frame including a proximal end, a distal end, and a lumen extending longitudinally therethrough, and a flow restrictor comprising a plurality of petals, where each petal is formed by struts and a material spans each of the plurality of petals.
The flow restrictor is configured to hinge relative to the expandable body to at least partially restrict flow through the lumen. The system includes an implantable control unit configured to operably connect with the flow restrictor of the implant, with an actuator, a processor configured to receive an instruction to actuate the actuator, and a communication module configured to wirelessly communicate with an external device.
The implantable control unit further includes tubing configured to connect the proximal end of the expandable body of the implant to the implantable control unit. A shaft is movingly disposed with the tubing to connect the actuator to the flow restrictor of the implant, such that actuation moves the shaft within the tubing to cause the flow restrictor to at least partially restrict flow through the lumen.
Claims Coverage
The document contains one independent claim defining an implantable flow restriction system with 3 main inventive features.
Hinge-petal flow restrictor on expandable metallic frame
An implant comprising an expandable body comprising a metallic frame having a proximal end and a distal end and a lumen extending longitudinally therethrough, and a flow restrictor comprising a plurality of petals each formed by struts and a material spanning each of the plurality of petals, wherein the flow restrictor is configured to hinge relative to the expandable body to at least partially restrict flow through the lumen.
Wireless implantable control unit with actuator instruction
An implantable control unit comprising an actuator configured to operably connect with the flow restrictor of the implant, a processor configured to receive an instruction to actuate the actuator, and a communication module operably connected to the processor and configured to wirelessly communicate with an external device, wherein actuation of the actuator causes the flow restrictor to at least partially restrict flow through the lumen.
Tubing-shaft actuation between control unit and flow restrictor
Tubing configured to connect the proximal end of the expandable body of the implant to the implantable control unit, and a shaft movingly disposed with the tubing configured to connect the actuator of the implantable control unit to the flow restrictor of the implant, wherein actuation of the actuator moves the shaft within the tubing to cause the flow restrictor of the implant to at least partially restrict flow through the lumen.
Overall, the claim coverage is centered on an implantable system in which a hinge-relative flow restrictor formed by hinged strut-based petals and a spanning material partially restricts an implant lumen, where restriction is produced by actuator-driven motion of a shaft within tubing under instruction by a wireless-communicating implantable control unit.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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