Method and apparatus for obtaining a biopsy sample
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United States of America Patent
Stats
-
Jun 20, 1995
Grant Date -
N/A
app pub date -
Sep 8, 1993
filing date -
Sep 8, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tool is disclosed, for taking a biopsy sample, having a needle attached to a syringe, with an opening in the side of the needle, which can be selectively covered by a cannula slidably mounted over the needle. The cannula can be locked into place on the needle, and the plunger of the syringe can be spring loaded to draw a sample into the syringe upon release of a latch. A method is also disclosed for taking a biopsy sample by sliding a cannula over a needle, inserting the cannula and needle into the tissue to be sampled, partially withdrawing the cannula from the needle to expose a lateral opening in the needle, maneuvering a sample of the tissue into the opening, cutting the sample from the tissue, and drawing the sample out through the needle.
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