For periodic acute injections using a syringe. A recessed top assists in guiding the syringe needle into the cannula (the recess makes this unit unsuitable for use with an Internal Cannula). A special Internal Cannula has been made for the C315GA only (our C315IA ). A stop can be put on the needle so that it penetrates to the exact depth with each injection. After each injection, a Dummy Cannula can be inserted to prevent tissue entry.

The unit consists of a threaded cylindrical plastic pedestal molded around a piece of stainless steel tubing that extends below the pedestal. The pedestal is secured with cranioplastic cement and mounting screws.

A Dacron mesh option is also available if needed as an attachment to the guide pedestal.

Pedestal Height: 8. 0 mm (.315"). Pedestal Diameter: 3.5 mm (.138").