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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. 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 ...

  4. Insulin (medication) - Wikipedia

    en.wikipedia.org/wiki/Insulin_(medication)

    Insulin is usually taken as subcutaneous injections by single-use syringes with needles, an insulin pump, or by repeated-use insulin pens with needles. People who wish to reduce repeated skin puncture of insulin injections often use an injection port in conjunction with syringes.

  5. Subcutaneous administration - Wikipedia

    en.wikipedia.org/wiki/Subcutaneous_administration

    Insulin historically was injected from a vial using a syringe and needle, but may also be administered subcutaneously using devices such as injector pens or insulin pumps. An insulin pump consists of a catheter which is inserted into the subcutaneous tissue, and then secured in place to allow insulin to be administered multiple times through ...

  6. Insulin port - Wikipedia

    en.wikipedia.org/wiki/Insulin_port

    An insulin port functions as a medication delivery channel directly into the subcutaneous tissue (the tissue layer located just beneath the skin). [1] When applying the injection port, an insertion needle guides a soft cannula (a small, flexible tube) under the skin. Once applied, the insertion needle is removed and only the soft cannula ...

  7. Syringe - Wikipedia

    en.wikipedia.org/wiki/Syringe

    A typical insulin vial may contain 10 mL, for 1000 units. Insulin syringes are made specifically for a patient to inject themselves, and have features to assist this purpose when compared to a syringe for use by a healthcare professional: shorter needles, [7] as insulin injections are subcutaneous (under the skin) rather than intramuscular,

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