Delivery system for a device such as a stent

• US 8,435,279 B2
• Filed: 06/14/2005
• Issued: 05/07/2013
• Est. Priority Date: 06/14/2005
• Status: Expired due to Fees

• Current Assignee: Advanced Cardiovascular Systems Incorporated (Abbott Laboratories), Guidant Corporation (Boston Scientific Corporation)
• Original Assignee: Advanced Cardiovascular Systems Incorporated (Abbott Laboratories)
• Inventors: Beyerlein, Dagmar, Feezor, Christopher, Osman, Karim, Burns, Denise Horrilleno, Pienknagura, Carla Rosa, Stamberg, Barbara
• Primary Examiner(s): ANDERSON, GREGORY A
• Application Number:
  US11/152,951
• Publication Number:
  US 20060282152A1
• Time in Patent Office: 2,884 Days
• Field of Search: 623/1.11, 623/1.12
• US Class Current: 623/1.11
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod

Abstract

A delivery system for a medical device. The delivery system comprises an inner member, a retractable sheath disposed over the inner member and being slideable over the inner member, and a retraction member coupled to the retractable sheath and disposed at least in portion within the retractable sheath, the retraction member being slideable over the inner member. An axial movement of the retraction member retracts or actuates the retractable member.

Claims

1. A catheter assembly comprising:

an outer member;

an inner member disposed within the outer member;

a retractable sheath disposed over the inner member, the retractable sheath being slideable over the inner member; and

a flexible intermediary member having a distal end directly attached to the retractable sheath and a proximal end attached to the outer member, the flexible intermediary member having a portion that is foldable within the outer member, wherein a seal is provided between the flexible intermediary member and the outer member; and

wherein the flexible intermediary member is configured to retract or actuate the retractable sheath coupled thereto.

2. The catheter assembly of claim 1 wherein applying a negative pressure into said catheter assembly causes the portion that is foldable within the outer member to fold more into the outer member and to cause the retractable sheath to retract in a direction of the negative pressure.

3. The catheter assembly of claim 2 further comprising:

a medical device supported by the inner member, wherein retracting the retractable sheath deploys the medical device.

4. The catheter assembly of claim 3 further comprising:

a stopper disposed over the inner member and proximal to the medical device.