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Raman spectroscopy for monitoring drug-eluting medical devices

  • US 20050171436A1
  • Filed: 01/09/2004
  • Published: 08/04/2005
  • Est. Priority Date: 01/09/2004
  • Status: Abandoned Application
First Claim
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1. A system for monitoring a drug-eluting device in using low-resolution Raman spectroscopy comprising:

  • a catheter having a first end and a second end with an excitation fiber extending therebetween, the excitation fiber suitable to transmit multi-mode radiation from the first end to the second end to irradiate a target region;

    a multi-mode laser coupled to the first end of the excitation fiber, the laser generates multi-mode radiation for irradiating the target region to produce a Raman spectrum consisting of scattered electromagnetic radiation;

    a low-resolution dispersion element positioned to receive and separate the scattered radiation into different wavelength components;

    a detection array, optically aligned with the dispersion element for detecting at least some of the wavelength components of the scattered light; and

    a processor for processing the data from the detector array to monitor a drug eluted from the medical device.

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