Cannulation guiding device for bifurcated stent and method of use
View Patent ↗The present invention is directed to an intraluminal guiding device having an expandable guiding member so as to facilitate and overcome the difficulties associated with obtaining contra-lateral leg access of a bifurcated stent or a bifurcated stent graft with a second guidewire and a method for treating abdominal aortic aneurysms with such a device. The guiding device comprises a pre-loaded second wire positioned within the contra-lateral leg which facilitates access to said leg in accordance with the present invention.
1. A method of delivering an intraluminal device to the location in a body lumen, the intraluminal device having a main body including a proximal trunk portion and distal first and second tubular leg portions, and a separate and detached endo-leg portion, the method comprising the steps of:
delivering a first delivery device to a location in the body lumen, the first delivery device including a first guidewire and one end of a pre-loaded wire attached to the first guidewire proximate a free distal end of the first guidewire and a free end of the pre-loaded wire being spaced apart from the the first guidewire, and carrying the main body of the intraluminal device such that the first guidewire extends through the proximal trunk portion and distal first tubular leg portion of the intraluminal main body portion, such that its free proximal end extends beyond a proximal end of the proximal trunk portion;
deploying the main body of the intraluminal device at the location in the body lumen;
positioning the first delivery device within the main body of the deployed intraluminal device such that the free end of the pre-loaded wire extends into the second leg of the intraluminal main body portion;
delivering a second delivery device having a second elongate member to the location in the body lumen, the second elongate member having a capturing mechanism associated therewith configured for grasping the pre-loaded wire, the second delivery device carrying the endo-leg of the intraluminal device;
grasping the pre-loaded wire with the capturing mechanism associated with the second delivery device;
advancing the second elongate member into the lumen of the second tubular leg to position the endo-leg in the desired location; and
deploying the endo-leg.
2. The method of claim 1 wherein the step of delivering the first delivery device to a location in the body lumen comprises advancing the first delivery device over the first guidewire to the location.
3. The method of claim 1 wherein the first delivery device further includes a first sheath configured to constrain the intraluminal device in a radially compressed configuration, and wherein the step of deploying the main body portion of the intraluminal device comprises retracting the first sheath relative to the first elongate member.
4. The method of claim 1 further comprising the step of extending the pre-loaded wire in a distal direction past the distal end of the second tubular leg portion.
5. The method of claim 1 further comprising the step of delivering a second guidewire to the location in the body lumen through a second vessel.
6. The method of claim 5 wherein the step of delivering a second elongate member to a location in the body lumen comprises advancing the second elongate member over the second guidewire to the location.
7. The method of claim 1 further comprising extending the capture mechanism from second elongate member.
8. The method of claim 1 wherein the capture mechanism includes a snare, and the step of grasping the pre-loaded wire comprises snaring the pre-loaded wire with the snare.
9. The method of claim 1 wherein the step of advancing the second elongate member into the lumen of the second tubular leg comprises moving the first delivery system in a proximal direction.
10. The method of claim 1 wherein the second delivery device further includes a second sheath configured to constrain the endo-leg in a radially compressed configuration, and wherein the step of deploying the endo-leg comprises retracting the second sheath relative to the second elongate member.