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. 2014 Nov 11;8:379. doi: 10.3389/fncel.2014.00379

Figure 1.

Figure 1

Manufacturing and mounting of a chronic cranial window with access port. A round glass cover slip is clamped by a crocodile clamp with silicone tube cover (A). A conical stone drill bit (B) is used to grind a circular hole off-center into the glass cover slip (C). The hole is filled with silicone which is applied by a metal drill bit (D). Different silicone types have different features like transparency and stiffness (E). The image shows a Sylgard (left) and a Kwik-Cast (right) filled access port. The window is mounted on the skull taking into account the access direction at the imaging setup (F).