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Cannula implantation system is an accepted method of acute and chronic intracranial drug administration for animal experiment.Single cannula system includes guide cannula, dummy cannula, internal cannula and fixing screw. Together with RWD stereotaxic instruments, holders, fixing screws, PE cannulas, injection pumps and other related products, this system provide a set of simple and effective experimental tool of unilateral intracranial administration for neuroscientists. More importantly, RWD offer users can customized cannulas based on their specific experimental requirements.
Fixing screw fixes internal cannula to guide cannula.
1.Determine the target area for drug administration according to research requirements and identify the specific depth of the interested nuclei by referring to brain atlas.
2.Choose a certain type of guide cannula according to the brain nuclei size and the solubility of drug, and then determine the length of guide cannula according to position of target nuclei. The length of guide cannula refers to the length of stainless steel tube below the plastic pedestal (marked as C in the diagram).C value can be customized. Please refer to ordering information.
3.Determine the length of dummy cannula (marked as G2 in the diagram). Usually, after the dummy cannula is fixed to the guide cannula by screw, the tip of dummy cannula is flush or protruding 0.5mm. G2 value can be customized. (Note: When 62002 is used with 62102, the tip of dummy cannula can be flush or protrude only when the length of guide cannula is less than 15.20mm.)
4.Determine the length of internal cannula (marked as G1 in the diagram). Usually, when the internal cannula is inserted into the guide cannula, the tip of internal cannula is flush or protruding 0.5mm.
G1 value can be customized as well
Ordering information (Unit: mm）：
|Matching||Guide Cannula||Dummy Cannula
|Internal Cannula||Fixing Scre||PE Tube|
|OD 0.64 x ID 0.45||OD0.40||OD 0.40||OD 0.41 x ID 0.25||OD 5.5 x L7.0||OD 0.85 x ID 0.42|
|OD 0.56 x ID 0.38||OD0.30||OD 0.30||OD 0.36 x ID 0.20||OD 5.5 x L7.0||OD 0.85 x ID 0.42|
|OD 0.48 x ID 0.34||OD0.30||OD 0.30||OD 0.30 x ID 0.14||OD 5.5 x L7.0||OD 0.85 x ID 0.42|
|OD 0.41 x ID 0.25||OD0.20||OD 0.20||OD 0.11 x ID 0.11||OD 5.5 x L7.5||OD 0.85 x ID 0.42|
|OD 0.71 x ID 0.41||OD 5.5||OD 5.5||OD 0.41 x ID 0.25||OD 5.5 x L7.5||OD 0.85 x ID 0.42|
1.Plastic or mental dummy?cannula is optional.
2.62302 PE tubes could be connected to syringes with needle size 0.45-0.65mm in outer diameter.
3.62523 Dummy cannula should be used together with Dummy cannula 62105.