INJECTOR

摘要

Injector applies to the instruments of medical engineering and may be used for the injection into the organism of medicines and other substances, precisely dosing out the amount. In order to increase the precision of the injecting dosage of the medicines and other substances and expand the functional possibilities of the device, the injector consists of a piezo-electrical gear and a cylindrical syringe case (6) with an inside mounted piston (7) and a needle holder (8). Also there is a newly introduced position transformer (9) and a control unit (10). The piezo-electrical gear, is by a bolt and nut mechanism, connected to the piezo-electrical cylinder (2), the electrodes of which are divided into four sectors and connected to a control unit (10), and at the end of piezo-electrical cylinder (2) there is a pressed rotor (4) tightly connected with a screw (3), the nut of which (5) is connected to a syringe piston (7) and connected to the position transformer (9), which is connected to the control unit (10).