System for deploying a device to a distal location across a diseased vessel
First Claim
1. A system for deploying a device to a distal location across a diseased vessel, comprising:
- an expandable sheath comprising a distal portion comprising a porous wall defining a lumen therethrough, the expandable sheath including the distal portion having a collapsed configuration, wherein the expandable sheath has a first cross-sectional outer diameter and a first lumen inner diameter, and an expanded configuration, wherein the expandable sheath has a second cross-sectional outer diameter and a second lumen inner diameter;
a removable expansion retention member configured to retain the expandable sheath in the collapsed configuration, the removable expansion retention member comprising a corset and a tensile member assembly wherein the tensile member may be actuated to release the corset and allow expansion of the expandable sheath to the expanded configuration, the removable expansion retention member disposed on the distal portion of the expandable sheath, the collapsed configuration being contained within the removable expansion retention member, and configured to be pulled through the lumen and fully removed through a proximal assembly after releasing the expandable sheath; and
wherein in the collapsed configuration, the expandable sheath is configured to be advanced across at least a portion of the diseased vessel to a position adjacent the distal location without substantial size interference between the first cross-sectional outer diameter of the expandable sheath and an inner diameter profile of a lumen of the diseased vessel;
wherein upon positioning the collapsed configuration to the desired position adjacent to the distal location, the tensile member is actuated to release the corset and the collapsed configuration of the expandable sheath and the expandable sheath may be expanded to the expanded configuration to facilitate passage of one or more relatively large diameter structures through the lumen that are larger in diameter than the first cross-sectional outer diameter, the expanded configuration of the distal portion diverting at least a portion of the flow of blood through the diseased vessel across the porous wall of the sheath;
said porous wall being configured to be capable of preventing passage of emboli to a tributary vessel of the diseased vessel;
wherein the expandable sheath expands from the collapsed configuration to the expanded configuration; and
wherein upon completion of passage of the one or more relatively large diameter structures, the expandable sheath may be collapsed back to the collapsed configuration.
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0 Petitions
Accused Products
Abstract
A system for deploying a device to a distal location across a diseased vessel, comprising a sheath comprising an expandable distal portion comprising a porous wall defining a lumen there-through, the distal portion having a collapsed configuration, wherein the sheath has a first cross-sectional outer diameter and a first lumen inner diameter, and an expanded configuration, wherein the sheath has a second cross-sectional outer diameter and a second lumen inner diameter; wherein in the collapsed configuration, the sheath is configured to be advanced across at least a portion of the diseased vessel to a position adjacent the distal location and wherein said system comprises a removable expansion retention member configured to retain the expandable sheath in the collapsed configuration.
73 Citations
20 Claims
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1. A system for deploying a device to a distal location across a diseased vessel, comprising:
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an expandable sheath comprising a distal portion comprising a porous wall defining a lumen therethrough, the expandable sheath including the distal portion having a collapsed configuration, wherein the expandable sheath has a first cross-sectional outer diameter and a first lumen inner diameter, and an expanded configuration, wherein the expandable sheath has a second cross-sectional outer diameter and a second lumen inner diameter; a removable expansion retention member configured to retain the expandable sheath in the collapsed configuration, the removable expansion retention member comprising a corset and a tensile member assembly wherein the tensile member may be actuated to release the corset and allow expansion of the expandable sheath to the expanded configuration, the removable expansion retention member disposed on the distal portion of the expandable sheath, the collapsed configuration being contained within the removable expansion retention member, and configured to be pulled through the lumen and fully removed through a proximal assembly after releasing the expandable sheath; and wherein in the collapsed configuration, the expandable sheath is configured to be advanced across at least a portion of the diseased vessel to a position adjacent the distal location without substantial size interference between the first cross-sectional outer diameter of the expandable sheath and an inner diameter profile of a lumen of the diseased vessel; wherein upon positioning the collapsed configuration to the desired position adjacent to the distal location, the tensile member is actuated to release the corset and the collapsed configuration of the expandable sheath and the expandable sheath may be expanded to the expanded configuration to facilitate passage of one or more relatively large diameter structures through the lumen that are larger in diameter than the first cross-sectional outer diameter, the expanded configuration of the distal portion diverting at least a portion of the flow of blood through the diseased vessel across the porous wall of the sheath; said porous wall being configured to be capable of preventing passage of emboli to a tributary vessel of the diseased vessel; wherein the expandable sheath expands from the collapsed configuration to the expanded configuration; and wherein upon completion of passage of the one or more relatively large diameter structures, the expandable sheath may be collapsed back to the collapsed configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification