Figure 2
Installation of a fluid percussion injury hub with a custom head plate for the hrGRIN lens assembly. (a) An injury hub (Luer lock fitting) is attached over a craniectomy with a thin layer of rapidly curing elastomeric adhesive (Kwik-Sil, dashed arrows) to protect the GRIN lens (caret) and head plate (3D-printed plastic, blue) from unwanted detachment during the removal of the injury hub after injury. To prevent unwanted expansion of the elastomer during fluid percussion, a layer of rigid dental acrylic is applied over the elastomer taking care not to make contact with the head plate-lens assembly. (b) View of the back side of the injury hub showing the small amount of elastomer applied to the hub and head plate (dashed arrows) and the of dental cement (solid arrow) that is placed over the Kwik-Sil.
