The Disposable Guide Cannula part is made from non-metal materials while the dummy shafts use passivated stainless steel. This ensures that the guides will be stiff during insertion. A helpful detail is the dummy shaft extension on top of the dummy head. By fixing the guide in the probe clip at this extension it is further ensured that the guide goes into its desired exact position. It also allows for more space when cementing the Guide Cannula to the skull.
The Disposable Guide Cannulas are typically used in awake animal settings when the surgery is performed a while before the experiment is to start. Since these guides cannot be re-used they are disposed of after the experiment is finished. The guide is fixed in a probe clip either at the shaft extension on top of the dummy head or at actual guide head. It is recommended that the shaft extension is used. The groove at the lower part of the guide head serves as help for the dental cement to fix properly. Along with the use of Anchor Screws the Guide Cannulas will stay firmly in place. When a probe is to be introduced, the dummy is removed from the guide and the probe may now be inserted. Available is also customer defined Guide Cannulas to fit with customer defined probes.