Biomedical Engineering Reference
In-Depth Information
avoid needlestick injuries caused by conventional syringes. Epinephrine
(adrenaline) autoinjectors are used as life-saving injections in anaphylaxis.
Recently, electronic autoinjectors have been developed. For instance, the
Easypod
®
(PDD Group Ltd., UK) is an electromechanical subcutaneous
injector supplied with a PIN code to ensure the delivery of a correct dose of
the drug (e.g. growth hormone).
(Source: www.apidra.com).
Figure 2. Design of Apidra SoloStar pen injector.
2.4. Infusion Controllers
Infusion controllers are simple devices used in parenteral infusions to
optimize the rate of infusion of non-viscous fluids. These devices rely on the
gravity to move the fluid through an intravenous set and the infusion rate is
determined by a photoelectric tool. The intravenous tube constricts to give the
selected flow rate.
2.5. Syringe Infusers
Syringe infusers are designed to deliver small precise volumes of drug
solutions intravenously over a preset time period. These devices can be useful
