Endovascular devices and methods
AssigneeBridgePoint Medical, Inc.
InventorsChad J. Kugler, Robert E. Atkinson
Life of this patent
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Abstract
Devices and methods for the treatment of chronic total occlusions are provided. One disclosed embodiment comprises a method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein. The method includes providing an intravascular device having a distal portion, inserting the device into the vascular lumen, positioning the distal portion in the vascular wall to at least partially surround the occlusion, and removing at least a portion of the surrounded occlusion from the lumen.
Claims37
A method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein, the method comprising:
- inserting a distal portion of a first intravascular device into the vascular lumen, the distal portion having a first collapsed configuration and a second expanded configuration, wherein the distal portion includes only two expanding elements that, in the second configuration, have no intervening structure between the two expanding elements;
- advancing the distal portion of the first intravascular device to a position inside the vascular wall while directing the advancement of the distal portion using a second intravascular device;
- and
- expanding the distal portion into the second configuration while the distal portion is positioned in the vascular wall, wherein the distal portion defines a substantially planar shape when the distal portion is in the second expanded configuration.
A method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein, the method comprising:
- inserting an intravascular device having a distal portion into the vascular lumen, the distal portion having a first collapsed configuration and a second expanded configuration, wherein the distal portion includes only two expanding elements that, in the second configuration, have no intervening structure between the two expanding elements;
- positioning the distal portion, in the first configuration, in the vascular wall;
- expanding the distal portion into the second configuration in the vascular wall;
- and
- delivering fluid into direct contact with the vascular wall via the distal portion.
A method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein, the method comprising:
- inserting an intravascular device having a distal portion into the vascular lumen, the distal portion having a first collapsed configuration and a second expanded configuration, wherein the distal portion includes only two expanding elements that, in the second configuration, have no intervening structure between the two expanding elements;
- positioning the distal portion, in the first configuration, in the vascular wall;
- expanding the distal portion into the second configuration in the vascular wall;
- and
- wherein retracting an exterior sheath from around the distal portion causes the distal portion to expand into the second configuration.
A method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein, the method comprising:
- inserting an intravascular device having a distal portion into the vascular lumen, the distal portion having a first collapsed configuration and a second expanded configuration,
- wherein the distal portion includes only two expanding elements that, in the second configuration, have no intervening structure between the two expanding elements, wherein a diameter of each expanding element is approximately one-half of a diameter of the intravascular device,
- the distal portion further including an angled tip located distally to the two expanding elements, wherein a length of each of the expanding elements in a longitudinal direction is shorter than a length of the angled tip in the longitudinal direction;
- positioning the distal portion, in the first configuration, in the vascular wall;
- expanding the distal portion into the second configuration in the vascular wall, wherein retracting an exterior sheath from around the distal portion causes the distal portion to expand into the second configuration;
- and
- withdrawing the distal portion in the second configuration to delaminate tissue layers in the vascular wall.
Dependencies are inferred from the claim text.