Self contained needle and shield
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 31, 1995
Issued Date -
N/A
app pub date -
Jan 9, 1995
filing date -
Jul 23, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A surgical needle is disclosed which is made up of two concentric tubes. The inner tube has a sharp tip like a conventional hypodermic or intravenous needle. The inner tube can be retracted into the outer tube after use. In one embodiment, the needle forms part of a catheter assembly. A catheter is mounted coaxially around the both tubes. The inner tube has a latching member attached to the end without the sharp tip. The latching member engages detents on a housing to hold the sharp tip in an extended position or a retracted position. The latching member is provided with a porous plug to assist in venting gases during catheter introduction.
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