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US 2021/0330344 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.
Claims20
A system for treating a pulmonary embolism, comprising:
- a clot treatment device including—
- 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 positioned 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 cross-sectional dimension greater than that of the undeployed state and the capture elements project outwardly from the flow restoration portion;
- a guide catheter having a shaft with a distal end portion, wherein the shaft includes a lumen configured to receive the clot treatment device in the undeployed state;
- and
- an expandable guide member at the distal end portion of the shaft, wherein the expandable guide member is configured to guide clot material into the guide catheter as the clot treatment device is withdrawn into the guide catheter.
4 more elements
A system for treating a pulmonary embolism, comprising:
- a clot treatment device including—
- an outer elongated member having a distal end;
- an inner elongated member within the outer elongated member, wherein the inner elongated member and the outer elongated member slide relative to each other, and wherein the inner elongated member has a distal end;
- and
- an expandable member having a proximal portion fixed to the distal end of the outer elongated member and a distal portion fixed 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 has a cross-sectional dimension greater than that of the undeployed state and the capture elements project outwardly from the flow restoration portion;
- a guide catheter having a shaft with a distal end portion, wherein the shaft includes a lumen configured to receive the clot treatment device in the undeployed state;
- and
- a radially expandable guide member having a first portion affixed to the distal end portion of the shaft and a second portion extending distally from the first portion, wherein the guide member is configured to guide clot material into the guide catheter as the clot treatment device is withdrawn into the guide catheter.
5 more elements
A system for treating a pulmonary embolism, comprising:
- a clot treatment device configured to move from a low-profile undeployed state sized to fit within a delivery catheter to a deployed state, wherein the clot treatment device has a greater cross-sectional dimension in the deployed state than in the undeployed state;
- a guide catheter having a shaft with a distal end, wherein the shaft includes a lumen configured to receive the clot treatment device in the undeployed state;
- and
- an expandable guide member including a first portion affixed at or near the distal end of the shaft and a second portion extending distally from the first portion, wherein the second portion is permeable to allow blood to flow through the expandable guide member when the expandable guide member is expanded.
1 more element
Dependencies are inferred from the claim text.