Invention Grant
- Patent Title: Poly(L-lactide) stent with tunable degradation rate
- Patent Title (中): 具有可调降解速率的聚(L-丙交酯)支架
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Application No.: US14530595Application Date: 2014-10-31
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Publication No.: US09248218B2Publication Date: 2016-02-02
- Inventor: Yunbing Wang , Xiao Ma
- Applicant: Abbott Cardiovascular Systems Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Abbott Cardiovascular Systems Inc.
- Current Assignee: Abbott Cardiovascular Systems Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Squire Patton Boggs (US) LLP
- Main IPC: A61L31/14
- IPC: A61L31/14 ; A61L31/06 ; C08G63/08 ; C08G63/90 ; A61F2/89 ; C08L67/04 ; C09J167/04 ; A61K9/20 ; C09D167/04 ; A61K9/16

Abstract:
Methods of making a biodegradable polymeric stent made from poly(L-lactide) and a low concentration of L-lactide monomer is disclosed. The concentration of L-lactide is adjusted to provide a degradation behavior that is suitable for different treatment applications including coronary, peripheral, and nasal. Methods include making a poly(L-lactide) material for a stent with uniformly distributed L-lactide monomer through control of polymerization conditions during PLLA synthesis, control of post-processing conditions, or both.
Public/Granted literature
- US20150057744A1 POLY(L-LACTIDE) STENT WITH TUNABLE DEGRADATION RATE Public/Granted day:2015-02-26
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