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Method of increasing stent retention of bioabsorbable scaffolding with a sheath / Abbott Cardiovascular Systems Inc.




Title: Method of increasing stent retention of bioabsorbable scaffolding with a sheath.
Abstract: A medical device includes a polymer stent crimped to a catheter having an expansion balloon. The stent is crimped to the balloon by a process that includes heating the stent to a temperature below the polymer's glass transition temperature to improve stent retention without adversely affecting the mechanical characteristics of the stent when later deployed to support a body lumen. A variable diameter sheath with a central portion that prevents expansion of the stent when the balloon is pressurized and larger diameter ends is disposed over the crimped stent-balloon assembly. The balloon is pressurized and the larger diameter ends of the sheath allow the balloon beyond the ends of the stent to expand. The balloon is then depressurized. ...


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USPTO Applicaton #: #20120290063
Inventors: Yunbing Wang, Xiao Ma, Rommel C. Lumauig


The Patent Description & Claims data below is from USPTO Patent Application 20120290063, Method of increasing stent retention of bioabsorbable scaffolding with a sheath.




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Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor
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stats Patent Info
Application #
US 20120290063 A1
Publish Date
11/15/2012
Document #
13103882
File Date
05/09/2011
USPTO Class
623/111
Other USPTO Classes
29515
International Class
/
Drawings
8


Scaffolding

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Abbott Cardiovascular Systems Inc.


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Prosthesis (i.e., Artificial Body Members), Parts Thereof, Or Aids And Accessories Therefor   Arterial Prosthesis (i.e., Blood Vessel)   Stent Combined With Surgical Delivery System (e.g., Surgical Tools, Delivery Sheath, Etc.)  

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20121115|20120290063|increasing stent retention of bioabsorbable scaffolding with a sheath|A medical device includes a polymer stent crimped to a catheter having an expansion balloon. The stent is crimped to the balloon by a process that includes heating the stent to a temperature below the polymer's glass transition temperature to improve stent retention without adversely affecting the mechanical characteristics of |Abbott-Cardiovascular-Systems-Inc
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