Methods for increasing a retention force between a polymeric scaffold and a delivery balloon

US8961848B2 · kind B2 · utility

Assignee

• Abbott Cardiovascular Systems, Inc. · US

Inventors

• Lily Ayo Roberts · San Francisco, US
• Sean A. McNiven · Menlo Park, US
• Kathleen Yan · Cupertino, US
• Boyd V. Knott · Menifee, US
• Jeremy B. Beer · Mountain View, US
• Mark C. Johnson · Phoenix, US

Key dates

• Filing date: Apr 18, 2011
• Grant date: Feb 24, 2015
• Expiry date: Jul 19, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2031/7543
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A medical device-includes a scaffold crimped to a catheter having an expansion balloon. The scaffold is crimped to the balloon by a process that includes inflating the delivery balloon during a diameter reduction to improve scaffold retention and maintaining an inflated balloon during the diameter reduction and prior and subsequent dwell periods.