Sarah A Nelson

US Patent:

20120065718, Mar 15, 2012

Filed:

Sep 14, 2010

Appl. No.:

12/881733

Inventors:

John A. Simpson - Carlsbad CA, US
Sarah A. Nelson - New Haven CT, US
Jonathan P. Durcan - Temecula CA, US

Assignee:

ABBOTT CARDIOVASCULAR SYSTEMS INC. - Santa Clara CA

International Classification:

A61F 2/84
A61L 29/04
B29C 49/04
A61M 25/10

US Classification:

623 111, 60410311, 264540

Abstract:

A catheter balloon and method involves extruded tubing with multiple layers of different durometer values, selected such that the blow up ratio (BUR) at the balloon's inner surface is increased. In one method a two stage blow mold process uses a small radius initial stage where radial growth is limited, followed by a second stage to a final dimension. A single stage blow mold process is also disclosed where the materials and processing are selected to approach the elongation to failure limit of the material. The single stage approach is preferably followed by a modified post-expansion heat set treatment to promote greater axial strength, leading to a preferred failure mode in the axial rather than radial direction.

Address:

16635 SE 26 Pl, Bellevue, WA 98008

VIN:

1NXBR30E97Z787282

Make:

TOYOTA

Model:

COROLLA

Year:

2007