Laser polishing of medical devices
First Claim
Patent Images
1. A method of polishing at least a portion of a stent substrate comprising the steps of:
- providing a stent substrate;
providing a laser operating at a wavelength absorbable by the stent substrate; and
irradiating at least a portion of the surface of the stent substrate with a laser beam from the laser at a wavelength absorbed by the stent substrate to cause a controlled level of melting of the surface of the stent substrate; and
allowing the substrate material to solidify.
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Abstract
A desired portion of a stent may be polished by irradiating at least a portion of the surface of the stent substrate with a laser beam from the laser at a wavelength absorbed by the stent substrate to cause a controlled level of melting of the surface of the stent substrate and allowing the substrate material to solidify.
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Citations
36 Claims
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1. A method of polishing at least a portion of a stent substrate comprising the steps of:
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providing a stent substrate;
providing a laser operating at a wavelength absorbable by the stent substrate; and
irradiating at least a portion of the surface of the stent substrate with a laser beam from the laser at a wavelength absorbed by the stent substrate to cause a controlled level of melting of the surface of the stent substrate; and
allowing the substrate material to solidify. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method of polishing at least a portion of a stent substrate comprising the steps of:
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providing a stent substrate;
providing a laser operating at a wavelength absorbable by the stent substrate;
directing a laser beam output from the laser at a portion of the stent substrate, the laser beam characterized by a fluence of between about 1 J/cm2 and 5000 J/cm2, wherein the wavelength of the laser beam absorbed by the stent substate causes a controlled level of melting of the surface of the stent substrate. - View Dependent Claims (29, 30)
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31. A method of polishing at least a portion of a stent substrate comprising the steps of:
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providing a stent substrate;
providing a laser operating at a wavelength absorbable by the stent substrate;
directing a laser beam output from the laser at a portion of the stent substrate, the laser beam melting a surface layer of the stent substrate to a depth of no greater than 5 percent of the thickness of the stent substrate in the portion of the stent substrate impinged by the laser beam.
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32. A method of polishing at least a portion of a medical guidewire for use with a catheter comprising the steps of:
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providing a medical guidewire;
providing a laser; and
irradiating the surface of the guidewire with a beam of radiation from the laser at a wavelength absorbed by the guidewire to cause a controlled level of melting of the surface of the guidewire in the portion of the guidewire impinged by the laser beam; and
allowing the surface of the guidewire to solidify.
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33. A method of polishing at least a portion of a guidewire comprising the steps of:
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providing a guidewire;
providing a laser operating at a wavelength absorbable by the guidewire;
directing a laser beam output from the laser at a portion of the guidewire, the laser beam melting a surface layer of the guidewire to a depth of no greater than 5 percent of the thickness of the guidewire in the portion of the guidewire impinged by the laser beam.
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34. A method of polishing at least a portion of a component for use with a catheter system comprising the steps of:
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providing the component for use with a catheter system;
providing a laser operating at a wavelength absorbable by the component for use with a catheter system;
directing a laser beam output from the laser at a portion of the component for use with a catheter system, the laser beam melting a surface layer of the component for use with catheter system to a depth of no greater than 5 percent of the thickness of the component in the portion of the component impinged by the laser beam. - View Dependent Claims (35, 36)
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Specification