Device for accurately marking tissue
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United States of America Patent
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Jun 18, 2002
Issued Date -
N/A
app pub date -
Jul 11, 2000
filing date -
Feb 18, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
This invention is an improved tissue localizing device for fixedly yet removably marking a volume of tissue containing a suspect region for excision without penetrating that volume. This invention also encompasses methods for deployment of the localizing device and its excision along with the marked tissue volume. At least one locator element is deployed into tissue and assumes a predetermined curvilinear shape to define a tissue border containing a suspect tissue region along a path. The locator element path preferably encompasses the distalmost portion of the tissue volume without penetrating that volume. Multiple locator elements may be deployed to further define the tissue volume along additional paths defining the tissue volume border that do not penetrate the volume. Polar and tangential deployment configurations as well as a locator element that may be cold-formed by a die in the distal portion of the deployment tube into a permanent arcuate shape is also disclosed.
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