Patent ID: 11944844
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 6:
7. An apparatus for providing radiation treatment to an anatomical lumen as in claim 2, further comprising said at least one intermediate balloon lumen, one of at least one intermediate balloons mounted and positioned between one of said at least one proximal balloons and one of said at least one distal balloons on said distal flexible elongated member portion, said at least one intermediate balloons being inflatable to a size which fills a substantial portion of said anatomical lumen, said at least one intermediate balloons being inflatable to a girth larger than the girth of said elongated member, one of said at least one intermediate balloon lumens opening into one of said at least one intermediate balloons, wherein all of said at least one intermediate balloon lumens are coupled to said coupling member, said at least one proximal balloon being positioned to be placed proximate healthy tissue portions of said anatomical lumen and said at least one distal balloon being positioned to be placed proximate other healthy tissue portions of said anatomical lumen; whereby the girths of said at least one proximate balloon, said at least one intermediate balloon and said at least one distal balloon cause the anatomical lumen to take a shape where healthy tissue is further displaced from the longitudinal axis of the source lumen as compared to the displacement with respect to the source lumen of tumorous tissue adjacent the intermediate balloon of the elongated member and whereby tumorous tissue is positioned closer to said source lumen and the radiation source contained within the source lumen.