Patent ID: 7396354
Filing Date: 2008-07-08
Classification: A61B,A61N

Abstract:
1. A light delivery catheter for inserting into a hollow body organ having target tissue and exposing the target tissue to light, the catheter comprising: a. an elongated tubular catheter shaft having a proximal end adapted to remain substantially outside of the body organ when in use and a distal end adapted to be substantially inserted into the body organ when in use, the distal end having a light treatment zone through which light can be transmitted; b. a light guide in the catheter shaft for transmitting light from a light source at the proximal end of the catheter shaft to the light treatment zone; c. an occlusion balloon positioned on the distal end of the catheter shaft adjacent to the tight treatment zone; d. an inflation lumen in the catheter shaft and in fluid communication with the occlusion balloon for delivering fluid from an inflation fluid source at the proximal end of the catheter shaft to the occlusion balloon; e. an infusion lumen in the catheter shaft for delivering infusion fluid from an infusion fluid source at the proximal end of the catheter shaft to the light treatment zone; and f. a plurality of infusion ports formed on the light treatment zone and in fluid communication with the infusion lumen for delivering infusion fluid to the hollow body organ, wherein the plurality of infusion ports are radially distributed about the circumference of the catheter shaft at the light treatment zone and longitudinally distributed along the length of the light treatment zone.