R2drive "R2deep"

Limited special edition of the R2drive made to target deep brain regions in rats. Currently in production and planned to ship end of 2026.

The regular R2drive is designed in a way that the arm reaches to the base of the R2drive. This works well for targeting most brain regions in rodents. However, it usually does not allow to implant the upper few mm of the probes' shanks. This can pose a problem when targeting deep brain regions in rats using probes with 10mm shanks, such as Neuropixels. 

Figure: rendering of an R2drive S and an R2deep, showing the difference in targeting depth of the two arms.

The R2dreep overcomes this problem by allowing the arm to be lowered beyond the base, getting probe shanks' upper parts not only onto skull level, but into the craniotomy. The tapered tip of the arm allows for a smaller craniotomy than one that would include the regular R2drive S or L arm, and the shortened side wall enables low placement of the tapered Neuropixels 2 probes.