Partially Crimped Stent
AssigneeAdvanced Bifurcation Systems Inc.
InventorsHenry Bourang, Mehran Khorsandi
Life of this patent
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Abstract
A crimping method that crimps a stent over multiple catheters. The method includes differentially crimping a stent on certain portions of a balloon catheter so that a second catheter can be threaded through the uncrimped portion of the stent and exit through the links of a conventional stent design or through a specific hole in the stent designed for a branched vessel.
Claims20
A method for treating a bifurcated vessel having a mother vessel and a daughter vessel, the method comprising:
- advancing a daughter catheter that includes a daughter expandable member through the mother vessel so that the daughter expandable member is advanced into the daughter vessel;
- advancing a mother catheter that includes a mother expandable member through the mother vessel so that a distal end of the mother expandable member advances distal to the daughter vessel;
- retracting the daughter expandable member into a side hole of a mother stent crimped to the mother expandable member;
- expanding the daughter expandable member to expand a proximal portion of the mother stent crimped to the mother expandable member into engagement with a portion of the mother vessel proximal to the daughter vessel so as to align the side hole with the daughter vessel;
- and
- expanding the mother expandable member to expand a distal portion of the mother stent crimped to the mother expandable member into engagement with a portion of the mother vessel distal to the daughter vessel.
A method for treating a bifurcated vessel having a mother vessel and a daughter vessel, the method comprising:
- advancing a mother catheter that includes a mother expandable member through the mother vessel to a position in which a distal end of the mother expandable member is disposed in the daughter vessel and a proximal end of the mother expandable member is disposed in the mother vessel;
- advancing a daughter catheter that includes a daughter expandable member through the mother vessel to a position in which the daughter expandable member is disposed in a portion of the mother vessel distal to the daughter vessel;
- retracting the daughter expandable member into a side hole of a mother stent crimped to the mother expandable member;
- expanding the daughter expandable member to expand a proximal portion of the mother stent crimped to the mother expandable member into engagement with a portion of the mother vessel proximal to the daughter vessel so as to align the side hole with the mother vessel;
- and
- expanding the mother expandable member to expand a distal portion of the mother stent crimped to the mother expandable member into engagement with the daughter vessel.
A method for fabricating a catheter assembly for treating a bifurcated vessel having a mother vessel and a daughter vessel, the method comprising:
- positioning a daughter catheter that includes a daughter expandable member to extend distally through a proximal portion of a mother stent and out through a side hole of the mother stent so that the daughter expandable member is disposed distal to the side hole;
- and
- partially crimping the mother stent to a mother expandable member included in a mother catheter so as to accommodate proximal and distal movement of the daughter catheter relative to the mother stent crimped to the mother expandable member.
Dependencies are inferred from the claim text.