Pen needle assembly
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United States of America Patent
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Jul 16, 2019
Grant Date -
Nov 19, 2015
app pub date -
Dec 20, 2013
filing date -
Dec 26, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A pen needle is provided with a plastic non-patient end. Since the non-patient end needle does not contact the patient, the needle can be formed with a larger diameter, permitting more secure attachment to a medication pen and greater medication flow from the cartridge through the cannula. In addition, a two-part hub construction comprising a needle bearing sub assembly and an adapter for attachment to the pen body may be used to lower materials volume and costs, and reduce sharps disposal. In embodiments, a hub according to the invention may be provided with a shield that provides an audible and/or tactile indication when full penetration depth of the needle is achieved. Windows on the shield may reveal a color band on the hub at the full-penetration depth position to provide the user with a visual indication that the pen needle has been used.
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