Medical device for vessel compatibility during high pressure...

Details Medical device for vessel compatibility during high pressure... Medical device for vessel compatibility during high pressure...

2011-05-10

2011-05-10

Lucchesi, Nicholas D (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

Reexamination Certificate

active

07938799

ABSTRACT:
The invention provides devices that can be used to deliver a therapeutic agent to a treatment site within the vessel of a patient at increased pressure, while limiting the contact with and pressure placed on the vessel walls. Devices according to the invention include an expandable structure arranged around and on a tube having a lumen. The expandable structure may include a sealing ring that makes contact with the interior surface of a vessel to prevent or decrease fluid flow during delivery of a therapeutic agent. This allows delivery of a therapeutic agent with decreased risk of injury to the treatment site. The invention also provides for large lumen diameters, preventing shearing stress on therapeutic agents such as cell slurries.

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Partial International Search Report in PCT/US2007/017250, dated Dec. 18, 2007.
International Search Report and Written Opinion in PCT/US2007/017250, dated Jan. 29, 2008.

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