Labeling of medical devices
AssigneeMedtronic, Inc.
InventorMichael W. Kimmel
Life of this patent
Estimating the term…
Abstract
An interventional medical device, for example, a chronic implantable medical electrical lead or drug delivery catheter, or an acute medical therapy delivery and/or diagnostic tool, such as a guide catheter, includes a label formed by laser marking a TiO2-loaded silicone medical adhesive, which is primarily employed for filling and bonding in the device. A laser marking apparatus is employed to form marks of the label in the cured adhesive that forms a backfill and bond in the device.
Claims6
An interventional medical device comprising an inner assembly, an outer sleeve, and a label, the label being located between the inner assembly and the outer sleeve and visible, through the outer sleeve, to the naked eye, and the label comprising:
- a titanium dioxide-loaded silicone medical adhesive, the adhesive filling a gap between the outer sleeve and the inner assembly and bonding the outer sleeve to the inner assembly;
- and
- wherein the titanium dioxide-loaded silicone medical adhesive includes a portion that is a different color from a remainder thereof, the portion being located immediately adjacent an inner surface of the bonded outer sleeve.
A method for forming a label for an interventional medical device, the method comprising:
- filling a gap between an inner assembly of the device and an outer sleeve of the device with silicone medical adhesive, the outer sleeve being transparent to ultraviolet light and the medical adhesive being loaded with titanium dioxide;
- allowing the filled medical adhesive to cure so that a bond is formed between the inner assembly and the outer sleeve;
- directing an ultraviolet laser beam of a laser marking apparatus toward the bond;
- focusing the laser beam to a depth, which is approximately at an interface between an inner surface of the sleeve and the cured adhesive;
- and
- activating the laser marking apparatus to form a plurality of marks in the bond, the plurality of marks comprising the label.
Dependencies are inferred from the claim text.