Endovascular devices and methods for exploiting intramural space
First Claim
Patent Images
1. A method of bypassing an occlusion disposed in a lumen of a vessel having a vascular wall, the method comprising:
- inserting a distal end of an elongate shaft of an intravascular device into the lumen proximal of the occlusion;
entering the vascular wall of the vessel with the distal end of the elongate shaft of the intravascular device at a location proximal of the occlusion;
advancing the distal end of the elongate shaft between first and second tissue layers of the vascular wall to a location distal of the occlusion;
advancing a re-entry device through the elongate shaft of the intravascular device, the re-entry device having a tissue penetrating distal tip;
penetrating the first tissue layer of the vascular wall with the tissue penetrating distal tip of the re-entry device such that the tissue-penetrating distal tip enters the lumen of the vessel distal of the occlusion; and
thereafter, advancing the distal end of the elongate shaft of the intravascular device from the vascular wall into the lumen of the vessel distal of the occlusion such that the elongate shaft of the intravascular device extends from the lumen of the vessel proximal of the occlusion, through a subintimal space between the first and second tissue layers along the occlusion, to the lumen of the vessel distal of the occlusion.
1 Assignment
0 Petitions
Accused Products
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 a first intravascular device having a distal portion with a concave side, inserting the first device into the vascular lumen, positioning the distal portion in the vascular wall, and orienting the concave side of the distal portion toward the vascular lumen.
231 Citations
17 Claims
-
1. A method of bypassing an occlusion disposed in a lumen of a vessel having a vascular wall, the method comprising:
-
inserting a distal end of an elongate shaft of an intravascular device into the lumen proximal of the occlusion; entering the vascular wall of the vessel with the distal end of the elongate shaft of the intravascular device at a location proximal of the occlusion; advancing the distal end of the elongate shaft between first and second tissue layers of the vascular wall to a location distal of the occlusion; advancing a re-entry device through the elongate shaft of the intravascular device, the re-entry device having a tissue penetrating distal tip; penetrating the first tissue layer of the vascular wall with the tissue penetrating distal tip of the re-entry device such that the tissue-penetrating distal tip enters the lumen of the vessel distal of the occlusion; and thereafter, advancing the distal end of the elongate shaft of the intravascular device from the vascular wall into the lumen of the vessel distal of the occlusion such that the elongate shaft of the intravascular device extends from the lumen of the vessel proximal of the occlusion, through a subintimal space between the first and second tissue layers along the occlusion, to the lumen of the vessel distal of the occlusion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
Specification