Therapeutic and diagnostic agent delivery
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United States of America Patent
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Nov 24, 1998
Grant Date -
N/A
app pub date -
Jun 7, 1995
filing date -
Jun 7, 1995
priority date (Note) -
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Abstract
A system for treating a patient's heart which comprises a means to form channels in the heart wall and a means to deliver a therapeutic or diagnostic agent into the channels. Additionally, the system may comprise a way to retain the agent within the channels for a useful period of time. The system may be configured to be introduced percutaneously or intraoperatively. The system generally comprises an elongated, flexible lasing transmission catheter that emits laser radiation and has delivery lumen opening at the distal end. Practice of the invention comprises forming channels in the heart wall and delivering a therapeutic or diagnostic agent into the channel. Gene therapy agents of this invention comprise vectors for transferring genetic information to the heart tissue in vivo or harvested cells which have been genetically engineered in vitro. Additionally, the invention may comprise retaining the agent within the channels, for example, by incorporating the agent in a viscous carrier.
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