Medical device delivery

• US 9,849,014 B2
• Filed: 11/11/2013
• Issued: 12/26/2017
• Est. Priority Date: 03/12/2002
• Status: Expired due to Fees

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Kusleika, Richard S.
• Primary Examiner(s): Shi, Katherine M
• Assistant Examiner(s): Mendoza, Michael
• Application Number:
  US14/076,448
• Publication Number:
  US 20140148893A1
• Time in Patent Office: 1,506 Days
• CPC Class Codes: A61F 2/82 Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts

Abstract

A stent delivery assembly can include a stent, a tube, a shaft slidably disposed within the tube, and an engagement member on the shaft. The engagement member is operable via the shaft so as to facilitate manipulation of the stent via the shaft. The engagement member can engage the stent inner wall and cooperating with the tube to grip the stent. The shaft is arranged within the tube with a close tolerance between the shaft and the tube so as to provide stability during retraction or advancement of the shaft.

Claims

1. A method of advancing an everted tubular braid to a target region, the method comprising the steps of:

providing a medical device comprising a delivery member and a braided tubular member coupled to the delivery member, the tubular member having a first portion and a second portion;

while maintaining the tubular member in a first configuration in which the first portion is positioned proximal of the second portion and the second portion is everted into the first portion, advancing the tubular member through a lumen of a catheter toward the target region, the catheter having a distal end, the catheter constraining the tubular member from radially expanding;

advancing the tubular member, in the first configuration, beyond the catheter distal end; and

permitting the tubular member to move to a second configuration in which the tubular member second portion is in a non-everted position, distal to the first portion.

2. The method of claim 1, wherein the permitting the tubular member to move to a second configuration comprises permitting the second portion to move to a non-everted position.

3. The method of claim 1, wherein the tubular member moves to a non-everted position upon being released from the delivery member.

4. The method of claim 1, wherein the delivery member comprises a tube having a lumen.

5. The method of claim 1, wherein the tubular member is coupled to a distal end of the delivery member.

6. The method of claim 1, wherein the medical device comprises a release member having an engagement member extending within a lumen of the delivery member, the engagement member engaging the tubular member second portion and cooperating with the delivery member to grip the tubular member.

7. The method of claim 1, further comprising radially expanding the tubular member after the tubular member moves to the second configuration.

8. The method of claim 7, wherein the radially expanding comprises allowing the tubular member second portion to radially expand upon release from the delivery member.

9. The method of claim 1, wherein the tubular member comprises a self-expanding stent.

10. The method of claim 1, wherein the permitting the tubular member to move to a second configuration comprises permitting the first and second portions of the tubular member to move only away from each other.