Back to results
US 5,421,955 AGranted
Expandable stents and method for making same
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorsLilip Lau, William M. Hartigan, John J. Frantzen
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorsLilip Lau, William M. Hartigan, John J. Frantzen
Estimating the term…
The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements. The individual radially expandable cylindrical elements consist of ribbon-like material disposed in an undulating pattern. The stents are made by coating a length of tubing with an etchant-resistive material and then selectively removing portions of the coating to form a pattern for the stent on the tubing and to expose the portions of the tubing to be removed. This may done by machine-controlled activation and relative positioning of a laser in conjunction with the coated tubing. After the patterning of the tubing, the stent is formed by removing exposed portions of the tubing by an etching process.
The process of making a stent which includes the steps of:
A method for making an open reticulated tubular structure, comprising the steps of:
A kit comprising:
A stent delivery system comprising:
A method for making a pattern in an intravascular stent comprising the steps of:
Dependencies are inferred from the claim text.