DELIVERY CATHETER FOR ENDOVASCULAR DEVICE

• US 20170035590A1
• Filed: 10/19/2016
• Published: 02/09/2017
• Est. Priority Date: 04/06/2012
• Status: Active Grant

• Current Assignee: Endologix
• Original Assignee: Trivascular Incorporated
• Inventors: LI, Cheng, MOREHOUS, Reva, WATSON, James R., WOODSON, Teresa, CHOBOTOV, Michael V., POPPE, Carl H.
• Granted Patent: US 10,918,507 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61F 2/07 Stent-grafts
• 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 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/077 having means to fill the space between stent-graft and aneurysm wall, e.g. a sleeve
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2002/9665 with additional retaining means
• CPC Class Codes: A61F 2250/0003 having an inflatable pocket filled with fluid, e.g. liquid or gas
• CPC Class Codes: F04C 2270/0421 Controlled or regulated

Abstract

Some embodiments relate in part to endovascular prostheses and delivery catheter systems and methods for deploying same. Embodiments may be directed more specifically to graft bodies having self-expanding members, including inflatable graft bodies, and catheters and methods for deploying same within the body of a patient.

Claims

1. A delivery catheter for delivery of an endoluminal prosthesis, comprising:

an elongate shaft with sufficient column strength for percutaneous advancement within a patient'"'"'s body lumen, the elongate shaft including a proximal section and a lumen extending therein;

a plurality of releasable belts disposed on the proximal section of the elongate shaft and configured to releasably constrain a self-expanding member of an endoluminal prosthesis;

a plurality of elongate release members in communication with a distal end of the elongate shaft and including a proximal section configured to releasably secure at least one respective releasable belt while said releasable belt is in a configuration that constrains at least a portion of an endoluminal prosthesis; and

the elongate shaft comprising an elongate release wire sleeve disposed within the lumen extending within the elongate shaft, the elongate release wire sleeve including a low friction material and extending from a distal section to a proximal section of the elongate shaft, said elongate release wire sleeve comprising a separate lumen for each release member.

2. The delivery catheter of claim 1 wherein the low friction material of the elongate release wire sleeve comprises a fluoropolymer.

3. The delivery catheter of claim 2 wherein the fluoropolymer of the elongate release wire sleeve comprises PTFE.

4. The delivery catheter of claim 3 wherein the PTFE of the elongate release wire sleeve comprises a shore hardness of about 40 D to about 70 D

5. The delivery catheter of claim 1 wherein the elongate release member comprises an elongate release wire.

6. The delivery catheter of claim 1 wherein the delivery catheter is configured to deliver an inflatable endovascular prosthesis and wherein the delivery catheter further comprises a fill tube including a fill tube lumen extending axially within the elongate shaft.

7. The delivery catheter of claim 1 wherein the elongate shaft comprises an elongate multi-lumen member extending from a distal section of the elongate shaft to a proximal section of the elongate shaft, the multi-lumen member comprising a guidewire lumen and a lumen within which the release wire sleeve is disposed.