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US 2015/0305756 A1Published application
Methods and apparatus for treating embolism
AssigneeInari Medical, Inc.
InventorsRobert F. Rosenbluth, Brian J. Cox, Paul Lubock, Richard Quick
Life of this patent
Estimating the term…
Abstract
A method and apparatus for treating a clot in the blood vessel of a patient, and particularly the treatment of a pulmonary embolism is disclosed. The treatment includes restoring flow through the clot followed by clot removal, either partially or substantially completely. The clot treatment device is expandable into the blood vessel and may contain radial extensions that assist in restoring flow as well as in removing clot material.
Claims40
A device for treating a pulmonary embolism, comprising:
- an expandable flow restoration portion;
- and
- a plurality of capture elements including at least a first capture element and a second capture element, wherein the flow restoration portion is between the first and second capture elements, and wherein the flow restoration portion and the capture elements are configured to move from a low-profile undeployed state sized to fit within a delivery catheter to a deployed state in which the flow restoration portion has a first cross-sectional dimension greater than that of the low-profile state such that the flow restoration portion forms a flow channel through the device and the capture elements project outwardly from the flow restoration portion.
A pulmonary embolism treatment device, comprising:
- an outer elongated member having a distal end;
- an inner elongated member within the outer elongated member, wherein the inner elongated member and/or the outer elongated member slides relative to the other, and wherein the inner elongated member has a distal end;
- and
- an expandable member having a proximal portion attached to the distal end of the outer elongated member and a distal portion attached to the distal end of the inner elongated member, the expandable member having a flow restoration portion and a plurality of capture elements arranged along the flow restoration portion, wherein the flow restoration portion and the capture elements are configured to move from a low-profile undeployed state sized to fit within a delivery catheter to a deployed state in which the flow restoration portion have a first cross-sectional dimension greater than that of the low-profile state that defines a flow channel through the device and the capture elements project outwardly from the flow restoration portion.
1 more element
A pulmonary embolism treatment device, comprising:
- an elongated member having a distal end;
- an expansion portion having a proximal end attached to the distal end of the elongated member, and the expansion portion having a distal end;
- and
- an expandable member having a proximal portion attached to the distal end of the elongated member and a distal portion attached to the distal end of the expansion portion, the expandable member having at least one of flow restoration portion and a plurality of capture elements arranged such that the capture elements are separated by individual flow restoration portion, wherein the flow restoration portion and the capture elements are configured to move from a low-profile undeployed state sized to fit within a delivery catheter to a deployed state in which (a) the flow restoration portion has a first cross-sectional dimension greater than that of the low-profile state that defines a flow channel through the device and (b) the capture elements project outwardly from the flow restoration portion, and wherein the expansion portion is stretched from a normal state when the expandable member is in the undeployed state such that the expansion portion is configured to axially contract the expandable member from the undeployed state to the deployed state.
1 more element
A method of treating a pulmonary embolism, comprising:
- delivering an embolectomy device through the heart to a pulmonary embolism that at least partially restricts blood flow through a pulmonary vessel, wherein the embolectomy device has a plurality of capture elements separated by an expandable cylindrical section;
- deploying the embolectomy device within the pulmonary embolism by expanding the cylindrical section into the pulmonary embolism so that the cylindrical section forms an expanded flow channel through the pulmonary embolism and thereby restores blood flow through the pulmonary embolism and by expanding the capture elements to a greater extent than the cylindrical section so that at least a portion of the pulmonary embolism is captured the capture elements;
- moving the embolectomy device and at least a portion of the pulmonary embolism along the pulmonary vessel;
- and
- withdrawing the embolectomy device and at least a portion of the pulmonary embolism from the pulmonary vessel.
2 more elements
Dependencies are inferred from the claim text.