Methods of implanting a prosthesis and treating an aneurysm

• US 9,913,743 B2
• Filed: 07/22/2016
• Issued: 03/13/2018
• Est. Priority Date: 09/03/2003
• Status: Active Grant

• Current Assignee: Bolton Medical, Inc. (Terumo Corporation)
• Original Assignee: Bolton Medical, Inc. (Terumo Corporation)
• Inventors: Arbefeuille, Samuel, Berra, Humberto, Barbre, Carol, Moore, Michael
• Primary Examiner(s): Yabut, Diane
• Application Number:
  US15/217,486
• Publication Number:
  US 20170165091A1
• Time in Patent Office: 599 Days
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/828 Means for connecting a plurality of stents allowing flexibility of the whole structure
• CPC Class Codes: A61F 2002/9505 having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2002/9528 for retrieval of stents
• CPC Class Codes: A61F 2002/9665 with additional retaining means
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61F 2230/0091 helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61M 25/0105 Steering means as part of the catheter or advancing means; Markers for positioning systems for detection of markers A61B
• CPC Class Codes: A61M 25/0108 using radio-opaque or ultrasound markers
• CPC Class Codes: Y10T 29/49799 Providing transitory integral holding or handling portion
• CPC Class Codes: Y10T 74/18392 Crank, pitman, and crank

Abstract

A method of implanting a prosthesis in a patient at a treatment site includes advancing an outer catheter of a prosthesis delivery system in the patient distal to the treatment site. An inner sheath and a curved guidewire lumen of the delivery system are advanced from the outer catheter to the treatment site along a guidewire while the outer catheter remains stationary relative to the patient. Advancing the inner sheath causes rotation of the prosthesis to thereby rotationally align the prosthesis at the treatment site. The inner sheath is retracted to deploy a prosthesis from within the inner sheath and at the treatment site. The delivery system is then retracted from the patient.

Claims

1. A method of implanting a prosthesis in a patient at a treatment site, comprising the steps of:

a) advancing an outer catheter of a prosthesis delivery system in the patient distal to the treatment site, wherein the treatment site is a curved portion of a blood vessel;

b) advancing an inner sheath and a curved guidewire lumen of the delivery system from the outer catheter through the curved portion of the blood vessel along a guidewire while the outer catheter remains stationary relative to the patient, wherein the curved guidewire lumen is curved along the entire length of the prosthesis, whereby advancing the inner sheath and the curved guidewire lumen through the curved portion of the blood vessel causes rotation of the curved guidewire lumen and the prosthesis to thereby rotationally align the prosthesis within the treatment site;

c) retracting the inner sheath to deploy the prosthesis from within the inner sheath and at the treatment site; and

d) retracting the delivery system from the patient.

2. The method of claim 1, wherein the outer catheter is advanced in the patient to a point distal to the curved portion of the blood vessel at a distance greater than a length of the prosthesis.

3. The method of claim 1, further comprising the step of retracting the inner sheath into the outer catheter prior to retracting the outer catheter and the inner sheath from the patient.

4. The method of claim 1, wherein the inner sheath is flexible relative to the outer catheter.

5. The method of claim 4, wherein the inner sheath is expandable.

6. The method of claim 5, wherein the inner sheath has a maximum inner diameter at least as great as an inner diameter of the outer catheter.