| Summary: | Intravenous access for blood sampling or drug
administration that requires peripheral venepuncture is
perhaps the most common invasive procedure practiced
in hospitals, clinics and general practice surgeries.We describe
an idealised mathematical framework for modelling
the dynamics of the peripheral venepuncture process. Basic
assumptions of the model are confirmed through motion
analysis of needle trajectories during venepuncture,
taken from video recordings of a skilled practitioner injecting
into a practice kit. The framework is also applied
to the design and construction of a proposed device for accurate
needle guidance during venepuncture administration,
assessed as consistent and repeatable in application
and does not lead to over puncture. The study provides
insights into the ubiquitous peripheral venepuncture process
and may contribute to applications in training and in
the design of new devices, including for use in robotic automation.
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