Abbott Cardiovascular Systems, Inc.

Bethany Steichen

Lothar W Kleiner

Manish Gada

Thierry Glauser

James Oberhauser

Yunbing Wang

Stephen D Pacetti

Ni Ding

Vincent J Gueriguian

Mary Beth Kossuth

Xiao Ma

James P Oberhauser

Methods and systems for controlling the moisture content of biodegradable and bioresorbable polymer resin during extrusion above a lower limit that allows for plasticization of the polymer resin melt and below an upper limit to reduce or prevent molecular weight loss are disclosed. Methods are further disclosed involving plasticization of a polymer resin for feeding into an extruder with carbon dioxide and freon.

Controlling moisture in and plasticization of bioresorbable polymer for melt processing

Methods to expand polymer tubing with desirable or optimum morphology and mechanical properties for stem manufacture and fabrication of a stent therefrom are disclosed.

Controlling crystalline morphology of a bioabsorbable stent

Methods of fabricating a low crystallinity polymer tube for polymers subject to strain-induced crystallization. The low crystallinity tube may be further processed to make an implantable medical device.

Method of fabricating a low crystallinity poly(L-lactide) tube

Methods to expand polymer tubing with desirable or optimum morphology and mechanical properties for stent manufacture and fabrication of a stent therefrom are disclosed.

The present invention relates to implantable medical devices comprising a L-lactide-constitutional unit-containing copolymer having a wt % percent crystallinity of 40% or less.

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San Francisco, CA, United States of America

Bethany Steichen