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Needle Puncture Force

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  • Needle Puncture Force

    Hello BioMechers,

    We have been doing research on syringe needle designs, particularly for
    intramuscular injections. The only standards which we have been able to
    locate are related to sharps disposal containers. However,we have had
    difficulty finding standards or published data on the loads which are
    normally expected to puncture human skin, insert the syringe needle through
    fascia and into muscle.

    Secondly, is there a non-human test method for quantitative sensory
    evaluation of injections? A reasonable mechanical indicator which is
    correlated to injection pain would be very useful.

    On a related topic, we would be very interested to hear of any other research
    which was done which identified a good analog for skin for these puncture
    tests. We have tried a number of materials, including poultry and swine
    skin, latex and latex-composites, and lambskin. None of these seem to model
    the elasticity and toughness of human skin very well and can only be used in
    a comparative fashion.

    If anyone has information related to:
    1. Needle puncture force in human tissue;
    2. A model for sensory evaluation;
    3. A reasonable in vitro analog for human intramuscular injections,

    we would be grateful to hear of this work. Thank you kindly.

    Robert-Jan Enzerink
    Hayes Medical Consulting
    819 Striker Ave, Ste.10
    Sacramento, CA 95834
    FAX: 916-646-5432