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Rotating catheter probe using a light-drive apparatus

  • US 8,401,610 B2
  • Filed: 10/11/2010
  • Issued: 03/19/2013
  • Est. Priority Date: 04/28/2003
  • Status: Expired due to Fees
First Claim
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1. A method of making an optical imaging device, comprising the steps of:

  • a. providing a body having a central longitudinal lumen extending from a proximal end to a distal end of the body;

    b. disposing at least one optical conduit within the central longitudinal lumen of the body;

    c. disposing a rotating reflecting element at a distal end of the body in optical communication with the at least one optical conduit, the rotating reflecting element being coupled to a light drive apparatus including a thermal gradient in optical communication with at least one optical conduit;

    d. positioning a gradient index lens proximal to the rotating reflecting element and in optical communication between at least one optical conduit and the rotating reflecting element; and

    e. wherein the light drive apparatus further comprises mounting a plurality of vane members on a central rotary axle, wherein each of the vane members having a first energy absorbing surface and a second energy reflecting surface, wherein the light drive apparatus is made by the steps of;

    i. filling an optically transparent tube with a light scattering material having a scattering coefficient sufficient to propagate light along an entire longitudinal length of the optically transparent tube;

    ii. forming a plurality of radial vanes along the longitudinal length of the optically transparent tube;

    iii. metallizing the optically transparent tube and plurality of radial vanes with a light reflective metal;

    iv. removing metallization at least a portion of one side of each of the plurality of radial vanes;

    v. applying an electrical charge to the metallization; and

    vi. depositing a charged energy absorbing material having a charge opposite the applied electrical charge to the metallization to preferentially bind the energy absorbing material to the areas where metallization was removed in step iv.

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