Self contained needle and shield

Details Self contained needle and shield Self contained needle and shield

A - Human Necessities

61

M

A61M 25/06 (2006.01) A61M 5/32 (2006.01)

Patent

CA 2127206

ABSTRACT OF THE DISCLOSURE 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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