Insulin and other injectable drugs are generally administered with pens drug delivery . Pens are one of the simplest and most dynamic in the administration of insulin and other injectable drug . The medicament is either a pen or a disposable cartridge for use with a reusable pen . The user generally grants pen needle dials a dose , then injects the drug under the skin. Very popular for over 20 years in Europe, the use of injection pens and pen needles spread rapidly in the United States for the treatment of diabetes and other non -diabetic drugs.
As technology advances and competition , driving the desire for more comfortable and effective injections , the design of the pen needle and its parts has become increasingly important. Among the most advanced projects of the pen needle proactively address the ease of use, the injection rate , ergonomic handling, injection depth control and accuracy, and the safe use of transportation available .
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