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  2. Injector pen - Wikipedia

    en.wikipedia.org/wiki/Injector_pen

    Historically, pen needles were manufactured in lengths up to 12.7mm. Over time, pen needles designed for insulin pens have become shorter, and a 4mm long needle is considered sufficient for most people to administer subcutaneously correctly. [23] In 1989, an injector pen form of human growth hormone was licensed in New Zealand. [28]

  3. Nanoneedle - Wikipedia

    en.wikipedia.org/wiki/Nanoneedle

    The needles may also find a use in tip-enhanced Raman spectroscopy, a process in which molecular energy levels are measured by comparing the frequency of incident light with that of outgoing light. A sharp needle tip allows for a more precise examination of the sample, down perhaps to that of single molecules.

  4. Hypodermic needle - Wikipedia

    en.wikipedia.org/wiki/Hypodermic_needle

    Needles in common medical use range from 7 gauge (the largest) to 34 (the smallest). 21-gauge needles are most commonly used for drawing blood for testing purposes, and 16- or 17-gauge needles are most commonly used for blood donation, as the larger luminal cross-sectional area results in lower fluid shear, reducing harm to red blood cells ...

  5. BD (company) - Wikipedia

    en.wikipedia.org/wiki/BD_(company)

    The company was founded in 1897 in New York City by Maxwell Becton and Fairleigh S. Dickinson.It later moved its headquarters to New Jersey. In 2004, BD agreed to pay out US$100 million to settle allegations from competitor Retractable Technologies that it had engaged in anti-competitive behavior to prevent the distribution of Retractable's syringes, which are designed to prevent needlestick ...

  6. Birmingham gauge - Wikipedia

    en.wikipedia.org/wiki/Birmingham_gauge

    The gauge starts at the lowest gauge number of 5Ø or 00000, corresponding to the largest size of 0.500 inches (12.7 mm), and runs to the highest gauge number of 36, corresponding to the smallest size of 0.004 inches (0.10 mm).

  7. Inoculation needle - Wikipedia

    en.wikipedia.org/wiki/Inoculation_needle

    An inoculation needle is an essential tool in inoculating a stab culture. [4] [7] A sterile stab culture cap is removed and the open end is flamed. The needle tip and its length is then pushed into the stab media and stopped once the needle tip reaches 0.5 inches away from the bottom of the stab media. [7]

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