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US 11,432,821 B2Granted
Arterial-venous occlusion apparatus
AssigneeBoston Scientific Scimed, Inc.
InventorsPatrick Haverkost, Joel Groff, Kent Harrison, Joseph Connolly, Gary Pederson, Mary-Claire Anderson, David Raab
Life of this patent
Estimating the term…
Abstract
Expandable occlusive plugs and methods of using them are disclosed. The devices generally include a tubular body bearing multiple slits defining leaves, which expand radially outward when the ends of the device are brought toward one another.
Claims20
A system for treating a patient, the system comprising:
- a tubular body having a sidewall, the sidewall including a plurality of cuts about a circumference thereof, each of the plurality of cuts extending longitudinally and radially along a portion of a length of the sidewall, the tubular body further comprising at least two circumferential regions defined by termini of the plurality of cuts,
- wherein the tubular body is configured to move between an elongated configuration characterized by a first distance between the circumferential regions and a deployed configuration in which the circumferential regions are separated by a second distance less than the first distance, such that a plurality of portions of the sidewall radially between the plurality of cuts of a first of the at least two circumferential regions are buckled or bent and displaced radially outward to define a first plurality of leaves and a plurality of portions of the sidewall radially between the plurality of cuts of a second of the at least two circumferential regions are buckled or bent and displaced radially outward to define a second plurality of leaves, wherein, in the deployed configuration, each leaf of the first plurality of leaves has a degree of twist in a first orientation and each leaf of the second plurality of leaves has a degree of twist in a second orientation, the first orientation being substantially opposite to the second orientation;
- and
- a plurality of fibers configured to promote clotting coupled to and extending proximally from a proximal end of the tubular body when the tubular body is in the deployed configuration.
1 more element
A system for treating a patient, the system comprising:
- a tubular body having a sidewall, the sidewall including a plurality of cuts about a circumference thereof, each of the plurality of cuts extending longitudinally and radially along a portion of a length of the sidewall, the tubular body further comprising at least two circumferential regions defined by termini of the plurality of cuts;
- a guidewire;
- a microcatheter;
- and
- a plurality of fibers configured to promote clotting coupled to and extending proximally from a proximal end of the tubular body;
- wherein:
- (a) the tubular body is configured to move between an elongated configuration characterized by a first distance between the circumferential regions and a deployed configuration in which the circumferential regions are separated by a second distance less than the first distance, such that a plurality of portions of the sidewall radially between the plurality of cuts of a first of the at least at least two circumferential regions are buckled or bent and displaced radially outward to define a first plurality of leaves, and a plurality of portions of the sidewall radially between the plurality of cuts of a second of the at least two circumferential regions are buckled or bent and displaced radially outward to define a second plurality of leaves, wherein, in the deployed configuration, each leaf of the first plurality of leaves has a degree of twist in a first orientation and each leaf of the second plurality of leaves has a degree of twist in a second orientation, the first orientation being substantially opposite to the second orientation,
- (b) the guidewire has an outer diameter less than an inner diameter of a lumen defined by the tubular body in the elongated configuration,
- (c) the microcatheter has an inner diameter greater than an outer diameter of the tubular body in the elongated configuration but less than an outer diameter of the tubular body in the deployed configuration;
- (d) the plurality of fibers extends from the proximal end of the tubular body when the tubular body is in the deployed configuration.
7 more elements
A method of treating a patient, comprising:
- inserting a system into the patient, the system comprising:
- a tubular body having a sidewall, the sidewall including a plurality of cuts about a circumference thereof, each of the plurality of cuts extending longitudinally and radially along a portion of a length of the sidewall, the tubular body further comprising at least two circumferential regions defined by termini of the plurality of cuts, and a plurality of fibers configured to promote clotting coupled to and extending proximally from a proximal end of the tubular body;
- wherein the tubular body is configured to move between an elongated configuration characterized by a first distance between the circumferential regions and a deployed configuration in which the circumferential regions are separated by a second distance less than the first distance, such that a plurality of portions of the sidewall radially between the plurality of cuts of a first of the at least two circumferential regions are buckled or bent and displaced radially outward to define a first plurality of leaves, and
- a plurality of portions of the sidewall radially between the plurality of cuts of a second of the at least two circumferential regions are buckled or bent and displaced radially outward to define a second plurality of leaves, wherein, in the deployed configuration, each leaf of the first plurality of leaves has a degree of twist in a first orientation and each leaf of the second plurality of leaves has a degree of twist in a second orientation, the first orientation being substantially opposite to the second orientation;
- wherein the plurality of fibers extends from the proximal end of the tubular body when the tubular body is in the deployed configuration.
2 more elements
Dependencies are inferred from the claim text.