Access needles and stylet assemblies
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United States of America Patent
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Sep 5, 2017
Grant Date -
Dec 4, 2014
app pub date -
May 14, 2014
filing date -
May 31, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Access needles and methods of using the needles are set forth in this disclosure. The needles can include a handle and a cannula having a proximal end operatively connected to the handle, a distal end, and a lumen extending through the body of the cannula. A protective sheath may surround the cannula. Further, a stylet may be removably disposed within the lumen of the cannula. The stylet includes a piercing tip at a distal end and a flexible body length extending proximally from the piercing tip to the handle. The flexible body of the stylet provides a path of fluid communication through the lumen of the cannula such that a contrast fluid can effectively pass through the lumen of the cannula. Methods of introducing cannulas to target locations within a body of a patient are also set forth in this disclosure.
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