The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 2000
Filed:
Apr. 28, 1998
Sam Ciamacco, Jr, San Diego, CA (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
A method and an apparatus are provided for delivery of radiation in vivo. A device includes a seal located proximal to a balloon through which a cavity of the balloon is inflated with a composition including a radioactive compound. The seal includes a passage therethrough which provides the only access to the balloon cavity and terminates at the proximal end of the balloon. The passage through the seal provides fluid communication with an inflation lumen within the medical device lumen, wherein a ratio of an inner diameter of the inflatable member to an inner diameter of the inflation lumen is about 0.5 or greater. In such a construction, inflation and evacuation can be accomplished without contamination of the entire medical device lumen. Thus, substantially all of the solution including the radioactive compound can be evacuated from the balloon cavity after treatment due to the positioning of the passage in the seal.