Endovascular devices and methods
AssigneeBridgePoint Medical, Inc.
InventorsChad J. Kugler, Robert E. Atkinson
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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.
Claims20
A method of treating an occlusion in a vascular lumen defined by a vessel wall, the occlusion separating a portion of the vascular lumen proximal of the occlusion from a portion of the vascular lumen distal of the occlusion, comprising:
- inserting a guidewire into the vascular lumen and advancing a distal end of the guidewire to a position adjacent the occlusion;
- advancing a catheter over the guidewire into the vascular lumen to the position adjacent the occlusion, the catheter including a balloon proximate a distal end of the catheter, a guidewire lumen having the guidewire slidably disposed therein, and a device lumen extending to a distal opening;
- inflating the balloon to an inflated configuration against an intima of the vessel wall at the position adjacent the occlusion;
- advancing a distal portion of a subintimal device disposed within the device lumen out of the distal opening and through the intima into a subintimal space within the vessel wall such that a distal end of the subintimal device remains within the subintimal space upon concluding the advancement of the subintimal device;
- and
- withdrawing the subintimal device from the subintimal space such that the subintimal space is only in fluid communication with the portion of the vascular lumen disposed proximal of the occlusion.
A method of treating an occlusion in a vascular lumen defined by a vessel wall, the occlusion separating a portion of the vascular lumen proximal of the occlusion from a portion of the vascular lumen distal of the occlusion, comprising:
- advancing a catheter into the vascular lumen to a position proximal of the occlusion, the catheter including a balloon proximate a distal end of the catheter and a device lumen extending to a distal opening located proximal of a distal end of the balloon;
- inflating the balloon to an inflated configuration against an intima of the vessel wall at the position adjacent the occlusion;
- advancing a distal portion of a subintimal device disposed within the device lumen out of the distal opening and through the intima into a subintimal space within the vessel wall while the balloon is inflated such that a distal end of the subintimal device remains in the subintimal space upon concluding the advancement of the subintimal device;
- and
- withdrawing the subintimal device from the subintimal space such that the subintimal space is only in fluid communication with the portion of the vascular lumen disposed proximal of the occlusion.
A method of treating an occlusion in a vascular lumen defined by a vessel wall, the occlusion separating a portion of the vascular lumen proximal of the occlusion from a portion of the vascular lumen distal of the occlusion, comprising:
- inserting a guidewire into the vascular lumen and advancing a distal end of the guidewire to a position adjacent the occlusion;
- advancing a catheter over the guidewire into the vascular lumen to the position adjacent the occlusion, the catheter including a balloon proximate a distal end of the catheter, a guidewire lumen extending through the balloon and having the guidewire slidably disposed therein, and a device lumen extending along an exterior of the balloon;
- inflating the balloon to an inflated configuration at the position adjacent the occlusion to position a distal portion of the device lumen against an intima of the vessel wall;
- advancing a distal portion of a subintimal device disposed within the device lumen through the intima into a subintimal space within the vessel wall such that a distal end of the subintimal device remains within the subintimal space upon concluding the advancement of the subintimal device;
- delaminating tissue layers of the vessel wall adjacent the occlusion;
- and
- withdrawing the subintimal device from the subintimal space such that the subintimal space is only in fluid communication with the portion of the vascular lumen disposed proximal of the occlusion.
Dependencies are inferred from the claim text.