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US 2016/0200035 A1Published application
Scaffold having a shaped strut and methods for shaping scaffold struts
AssigneeAbbott Cardiovascular Systems Inc.
InventorsJamey Jacobs, Stephen Pacetti
Life of this patent
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Abstract
A scaffold strut is shaped to improve hemocompatibility. After laser cutting, the scaffold is placed on a work piece and its struts are shaped by flame polishing or brushing. The abluminal surfaces and luminal surfaces can have corners rounded. The strut can have a sloped surface on its luminal side without reducing strut thickness needed for strength.
Claims20
A method for making a medical device, comprising:
- forming a polymer scaffold having struts;
- and
- flame polishing the scaffold to form shaped struts.
A method for making a medical device, comprising:
- forming a polymer scaffold having struts;
- and
- brushing the scaffold to form shaped struts.
A medical device, comprising:
- a balloon catheter including a balloon disposed at a distal end of the catheter;
- and
- a polymer scaffold crimped to the balloon, the scaffold having a pattern of shaped struts, wherein a shaped strut has a leading edge, a trailing edge, a luminal surface facing a surface of the balloon and an abluminal surface facing away from the balloon surface;
- wherein the shaped strut is, in respect to a cross section of the strut, asymmetric about each of two orthogonal axes passing through a centroid of the strut cross-section.
1 more element
Dependencies are inferred from the claim text.