US2017333012A1PendingUtilityA1

Biopsy device

33
Individually held — no corporate assignee on recordPriority: Apr 16, 2012Filed: Jul 28, 2017Published: Nov 23, 2017
Est. expiryApr 16, 2032(~5.7 yrs left)· nominal 20-yr term from priority
Inventors:Jeff M. Hathaway
A61B 10/04A61B 2010/0208A61B 2090/062A61B 10/0275A61B 90/06A61B 10/0283
33
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Claims

Abstract

Biopsy devices for acquiring tissue samples. In embodiments, exemplary biopsy devices include a cutter, a cannula including a tissue-receiving cavity, a vacuum generating mechanism and a tissue cutting mechanism. Vacuum generating mechanism draws tissue into tissue-receiving cavity and tissue cutting mechanism cuts a tissue sample. Vacuum generating mechanism may provide positive air pressure for tissue sample ejection.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A cannula for a biopsy device comprising:
 a tube having a closed end and an opposite open end; and   a lateral tissue-receiving aperture through the tube adjacent the closed end, the tissue-receiving aperture narrowing in a direction away from the closed end.   
     
     
         2 . The cannula of  claim 1  wherein the tissue-receiving aperture extends between first and second curved end edges. 
     
     
         3 . The cannula of  claim 2  wherein the first end edge is adjacent the closed end of the tube, the first end edge having a radius which is greater than a radius of the second end edge.

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