Method and apparatus for direct laser cutting of metal stents

Electric heating – Metal heating – By arc

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29557, B23K 2600

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active

057808074

ABSTRACT:
An improved expandable stent for implantation in a body lumen, such as an artery, and an improved method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cut cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements, the elements having a rectangular cross-section from cut-to-cut. The individual radially expandable cylindrical elements are disposed in an undulating pattern. The stent is manufactured by direct laser cutting from a single metal tube using a finely focused laser beam passing through a coaxial gas jet structure to impinge on the working surface of the tube as the linear and rotary velocity of the tube is precisely controlled.

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Brochure: "Industrial Strength Laser Marking: Turning Photons into Dollars," printed by Excel.backslash.Control Laser, Inc. (1992).
Brochure: "Anomatic.TM. II Positioning Controller," printed by Anorad Corporation (undated).

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