Very fine suction instruments for narrow approaches Description Our special atraumatic micro suction cannulas for neurosurgery for gentle and safe preparation with the rigid cannula. Advantages - Fine suction devices for even the narrowest approaches - Very stable suction tube for retraction and suction - Ideal for precise dissections - Atraumatic instrument tip Properties - Drop shaped suction-interrupter - Coded widths and lengths Note Micro suction Cannulas are available in three different diamaters and four different lengths.