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Working well balloon angioscope and method

  • US 4,784,133 A
  • Filed: 01/28/1987
  • Issued: 11/15/1988
  • Est. Priority Date: 01/28/1987
  • Status: Expired due to Term
First Claim
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1. An angioscope comprising in combination:

  • (a) a flexible catheter having first, second and third channels therein and a proximal end and a distal end;

    (b) an inflatable transparent balloon having a first opening and a second opening located opposite to the first opening;

    (c) first means for producing a seal between the portion of the transparent balloon around its first opening and the distal end of the catheter;

    (d) a tube having a first end connected in communication with a distal end portion of the first channel and having a second end extending through the second opening of the balloon, the second and third channels opening into the interior of the transparent balloon;

    (e) a second means for producing a seal between the portion of the transparent balloon around its second opening and the second end of the tube;

    (f) third means passing through the second channel for producing light that emanates from the distal end of the catheter;

    (g) fourth means passing through the third channel for effectuating viewing of the illuminated region from the proximal end of the catheter; and

    (h) fifth means passing through the first channel beyond the second end of the tube for interacting with tissue or substance illuminated through the wall of the transparent balloon by the third means and viewed through the fourth means and the wall of the transparent balloon.

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