Skip to main content

Table 1 Specification of microneedles used for intrastromal injections

From: Systematic assessment of microneedle injection into the mouse cornea

Needle type Material Bevel (degree) Nominal outer diameter (mm) Nominal inner diameter (mm) Total length (mm)
Hamilton, 33 G, point style 4 stainless steel 30 0.210 0.110 9.520
WPI, 35 G, tri-surface bevel stainless steel 25 0.135 0.055 35.000
WPI, hand-pulled and beveled glass needle glass 25 0.060a 0.050a 10.000a
  1. a approximate measurements.