Methods for deploying bypass graft stents

• US 6,070,589 A
• Filed: 08/01/1997
• Issued: 06/06/2000
• Est. Priority Date: 08/01/1997
• Status: Expired due to Term

• Current Assignee: Cardinal Health Switzerland 515 GmbH (Cardinal Health, Inc.)
• Original Assignee: TERAMed, Inc. (Cardinal Health, Inc.)
• Inventors: Reesemann, Thomas V., Keith, Peter T.
• Primary Examiner(s): Yu, Mickey
• Assistant Examiner(s): CAMPEN, KELLY SCAGGS
• Application Number:
  US08/904,977
• Time in Patent Office: 1,040 Days
• Field of Search: 128/898, 606/198, 606/195, 623/1, 623/12, 604/106, 604/104
• US Class Current: 128/898
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2002/065 Y-shaped blood vessels
• CPC Class Codes: A61F 2002/067 modular
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2230/0034 D-shaped
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0067 conical

Abstract

A method for endoluminally treating a pathological defect is disclosed. The method comprises the steps of introducing first and second graftstents through respective first and second access sites on a first side of a pathological defect; advancing the graftstents until each extends across the defect and is positioned within a common body passageway on a second side of the pathological defect; and drawing the graftstents together within the common body passageway.

Claims

1. A method for endoluminally treating a pathological defect within or part of a body passageway of a patient, there being healthy tissue on a first side and on a second side of the pathological defect and the pathological defect being positioned in the vicinity of a branching passageway within a patient, comprising the steps of:

(a) introducing first and second graftstents through respective first and second access sites, the first and second access sites being on the first side of the pathological defect;

(b) advancing the first and second graftstents until each extends across the pathological defect and is positioned in a common body passageway and on the second side of the pathological defect; and

(c) drawing the first and second graftstents together within the common body passageway.

2. The method as in claim 1, wherein the drawing step comprises endoluminally tying the first and second graftstents together.

3. The method as in claim 1, including the additional step of affixing one end of an anchor line to the first graftstent prior to the step of introducing the first graftstent through the first access site.

4. The method as in claim 3, including the additional step of drawing a second end of the anchor line through the second access site.

5. The method as in claim 4, including the additional step of threadedly coupling the second graftstent to the anchor line prior to the step of introducing the second graftstent through second access site.

6. The method as in claim 5, wherein the step of drawing the first and second graftstents includes the step of advancing one of a knot and an anchor bead over the second end of the anchor line to the second side of the pathological defect.

7. The method as in claim 6, including the additional step of rotationally aligning the first and second graftstents by reducing the length of anchor line extending between the first and second graftstents at the second side of the pathological defect.

8. The method as in claim 3, wherein there are plural anchor lines each having one end and a second end and wherein the affixing step includes affixing said one end of the plural anchor lines to the first graftstent, and wherein said second end of the plural anchor lines are drawn through the second access site.

9. he method as in claim 8, including the additional step of threadedly coupling said second ends of each of the plural anchor lines to the second graftstent prior to the step of introducing the second graftstent through the second access site.

10. The method as in claim 9, wherein the step of drawing the first and second graftstents includes the step of advancing one of a knot and an anchor bead over each of the second ends of the plural anchor lines to the second side of the pathological defect.

11. The method as in claim 1, wherein the stents of the first and second graftstents include preset bows which substantially mate upon joining the first and second graftstents on the second side of the pathological defect.

12. The method as in claim 1, wherein the drawing step comprises drawing a cephalic portion of the two graftstents together.

13. The method as in claim 1, including the additional step of affixing the first and second graftstents within the common body passageway on the second side of the pathological defect whereby the pathological defect is excluded.