Apparatus and methods for delivering stem cells and other...

Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...

Reexamination Certificate

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C604S509000

Reexamination Certificate

active

07744564

ABSTRACT:
A system for delivering an agent to tissue surrounding a target vessel includes an elongate delivery device and a source coupled to a proximal tubular portion of the device. A first lumen extends through the tubular portion and an expandable sheath of the device, wherein the expandable sheath has a proximal end that surrounds and overlies a distal end of the tubular portion. The device further includes a stiffening member, attached to the sheath, and a balloon attached to the stiffening member, at a location spaced apart from the sheath. A second lumen extends, within the tubular portion and the stiffening member, to the balloon. A volume of fluid may be delivered, from the source, through the first lumen and into a section of the target vessel that is downstream from the expandable sheath and upstream of the balloon, in order to expand the sheath, fill the section and apply a pressure sufficient to cause extravasation of the section.

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PCT/US07/75640 International Search Report and Written Opinion, dated of mailing Jul. 14, 2008.
USPTO Office Action for co-pending U.S. Appl. No. 10/958,034 dated Oct. 19, 2006.
USPTO Office Action for co-pending U.S. Appl. No. 10/958,034 dated Dec. 13, 2006.

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