Needle-less injection apparatus and method
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United States of America Patent
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Feb 5, 2002
Grant Date -
N/A
app pub date -
Dec 8, 1999
filing date -
Dec 8, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device and method for delivering and injecting fluid into heart tissue utilizing high pressure injection to increase injectate (fluid) retention in the heart tissue. The catheter includes a shaft having an infusion lumen extending therethrough, wherein the proximal end of the shaft connected to a pressurized fluid source capable of generating a transient pressure of more than 1000 psi. The distal end of the shaft includes a nozzle having an injection port in fluid communication with the infusion lumen such that fluid from the pressurized fluid source may be delivered to the heart tissue at a sufficiently high exit velocity to partially penetrate the heart tissue.
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