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Device for in vivo radiation delivery and method for delivery

  • US 6,099,499 A
  • Filed: 04/28/1998
  • Issued: 08/08/2000
  • Est. Priority Date: 04/28/1998
  • Status: Expired due to Fees
First Claim
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1. A medical device for radiation treatment of a body lumen, compromising:

  • an elongated tubular member having an proximal end and a distal end;

    an inflatable member having a proximal end, distal end, and a inflatable member wall defining a cavity therein being filled with a radioactive compound;

    an inflation lumen having a substantially circularly shaped cross-section longitudinally extending throughout the entire length of the tubular member from the proximal end of the elongated tubular member to the distal end of the tubular member, wherein the inflation lumen terminates at the proximal end of the inflatable member, and is in fluid communication with the cavity of the inflatable member wherein a ratio of an inner diameter of the inflated inflatable member to an inner diameter of the inflation lumen is about 3.33 or greater; and

    further wherein the inflation lumen contains the radioactive compound;

    a guidewire lumen having a proximal end and a distal end, the guidewire lumen longitudinally extending through the tubular member;

    a guidewire access port being connected to the elongated tubular member at the distal end of the tubular member; and

    a seal defining a seal inflation lumen, the seal inflation lumen being in fluid communication with the inflation lumen as well as with the cavity of the inflatable member with a passage providing a single access to the cavity of the inflatable member via the inflation lumen.

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