(Click to see larger image) Narishige's HI-9 needle holder holds glass capillary needles of 1mm diameter. It is made of stainless steel and has a quick-connect fitting on the back end to allow easy insertion and removal of 2mm O.D. PTFE or PE tubing such as CT-4. The fitting also allows rotaion of the tubing to eliminate kinks in the tubing and to facilitate lining up bent-tip pipettes via the included HIR rotation mechanism. The HI-9 is designed specifically for use with Narishige's IM-11-2 syringe-type injector as well as Tritech's MINJ-D and MINJ-1 pneumatic microinjectors.

An economical and more flexible alternative to the HI-9 is Tritech Research's own MINJ-4, especially when being used with a wider range of needle diameters from 0.5 to 1.5mm.

HI-9 cannot be used for oil-type injectors or those that need a Luer fitting. HI-7 or MINJ-4 is required for use with IM-6, IM-9A, IM-9B, and IM-9C.