The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 27, 2015

Filed:

Jun. 20, 2014
Applicant:

Abbott Cardiovascular Systems Inc., Santa Clara, CA (US);

Inventors:

Bethany Steichen, San Francisco, CA (US);

Stephen Pacetti, San Jose, CA (US);

Manish Gada, Santa Clara, CA (US);

Thierry Glauser, Redwood City, CA (US);

Lothar Kleiner, Los Altos, CA (US);

Yunbing Wang, Sunnyvale, CA (US);

James Oberhauser, Saratoga, CA (US);

Ni Ding, San Jose, CA (US);

Assignee:

Abbott Cardiovascular Systems Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B 13/06 (2006.01); B29C 47/10 (2006.01); B29C 47/76 (2006.01); B29C 47/92 (2006.01); B29C 47/00 (2006.01);
U.S. Cl.
CPC ...
B29B 13/065 (2013.01); B29B 13/06 (2013.01); B29C 47/0014 (2013.01); B29C 47/0021 (2013.01); B29C 47/0023 (2013.01); B29C 47/1018 (2013.01); B29C 47/76 (2013.01); B29C 47/92 (2013.01); B29C 47/1072 (2013.01); B29C 2947/922 (2013.01); B29C 2947/92228 (2013.01); B29C 2947/92342 (2013.01); B29C 2947/92695 (2013.01); B29C 2947/92704 (2013.01); B29C 2947/92723 (2013.01); B29K 2995/006 (2013.01);
Abstract

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.


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