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US 6,764,710 B2Granted
Light emitting markers for use with substrates
AssigneeSciMed Life Systems, Inc.
InventorsKenneth M. Merdan, Dachuan Yang, Lixiao Wang
Life of this patent
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Abstract
A method of determining whether a substrate has been subjected to an energy source. In one embodiment, the method includes the steps of providing a polymeric surface, providing a light emitting material having a specified emission spectrum that changes upon exposure to an energy source on the surface or embedded in said substrate and applying said energy source to said surface with said light emitting material. This method can be particularly useful for detecting the bond quality in medical devices.
Claims14
A method of manufacturing a medical device, comprising the steps of:
- a) providing a first polymeric medical device substrate part and a second medical device substrate part to be joined;
- b) selecting a light emitting material having a first emission spectrum and which, upon exposure to a predetermined energy dosage, provides a second emission spectrum different from said first emission spectrum or a non-emission;
- c) applying said light emitting material to said polymeric substrate at a location where the first substrate and second substrate will be joined;
- and
- d) applying the predetermined energy source to said substrate sufficient to change said first emission spectrum of said light emitting material to said second emission spectrum or to a non-emission and sufficient to join the first and second parts.
2 more elements
Dependencies are inferred from the claim text.