Model 5000 Microinjection Unit provides a simple and reliable method of standardizing the use of µL syringes for accurate, repeatable delivery of minute amounts of fluid. It consists of an inter-changeable syringe holder plunger drive mechanism, delivery control knob and adjustable foot support to stabilize the needle tip.

The syringe holder firmly holds the syringe in position while the plunger remains stationary until it is moved by the control knob. The finely calibrated control knob permits smooth, precise dispensing of increments smaller than .001 µL of fluid. The quick-release syringe holder allows syringes to be refilled and repositioned rapidly and accurately.

Model 5000 Standard Accessories
(supplied with Model 5000)

Model 5001 Syringe Holder for Hamilton series syringes with .305″/.308″ barrel diameter, 25 gauge needle.
Model 1770-C Upper Bracket Assembly for attachment to Kopf manipulator.

Optional Accessories

Model 5002 Syringe Holder for Hamilton series syringes with .260″ barrel diameter, 26 gauge.
Model 5003 Micro Pipette Holder
Model 5004 Syringe Holder for Hamilton series syringes with .305″/.308″” barrel diameter, 22 gauge.
Model 5000-G Coarse Adjustment Handle
Special needle support feet quoted upon request.


  • Smooth, effortless movement of control knob and stability of design allows delivery of minute volumes never before possible.
  • Simplicity of use saves time and reduces risk of evaporative fluid loss.
  • Positive holding of plunger prevents slippage and fluid seepage.
  • Delivery control knob is calibrated into twenty divisions. Total injection volume of the syringe requires approximately 600 revolutions.


Model 5000-G Coarse Adjustment Handle
is used to rotate calibrated knob at a rapid pace.