Fluid flowing device and method for tissue diagnosis or therapy
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United States of America Patent
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Jun 2, 2015
Grant Date -
Oct 28, 2010
app pub date -
Apr 22, 2010
filing date -
Jul 30, 2007
priority date (Note) -
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Abstract
A device and method for safely securing a multilumen device to a tissue, organ or solid tumor within the body of a human during a diagnostic or therapeutic procedure is described. The device is capable of securing the tumor by touching or piercing its surface and providing a coolant to the distal tip. Cooling the tip forms a cryogenically induced region that tightly binds the tip to the tumor, temporarily sealing the entry-track of the instrument. The device further provides at least one injecting/aspirating lumen that can dispense or aspirate a fluid within the tumor, and an outer sheath or guide. Such construction allows injecting part or whole volume of the tumor while the cryogenically induced bond prevents back-flow of the injected substances through the entry-track.
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