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. 2023 Aug 19;20:100169. doi: 10.1016/j.toxcx.2023.100169

Table 3.

Engineering metrics for a field-based device for the administration of adjunctive therapies for SBE. The identified units and the corresponding reasons for the choice of those units are provided. The (*) indicates that SC administration is ideal, but may involve IM administration depending on bite location.

Metric Ideal Units Reason
Volume Injected 2–5 mL Encapsulate venom 0.1–2.0 mL
Dia. Injection Bolus 3–5 cm Majority of inter-fang distance
Depth Injection Bolus 0.5–2 cm Majority of fang length
Needle Depth 0.5–1 cm Subcutaneous* injection
Time to Inject/Deliver 10–300 s Patient compliance
Shelflife 1–5 yr Stable to heat/moisture
Device Width <8 cm Hold in adult hand
Device Length <30 cm Easily Packable
Device Weight <300 g Ease of transport, use
# steps to use 2-5 steps Simplicity
Power Mech. No external power required