Fig. 2

Remote-controlled cholangiography injection device. a Fabrication drawing. b Operation terminal. c Control terminal. d Extension tube. (1) Syringe slot, (2) syringe pushing hand—injection pump, (3) syringe fixing arm, (4) working status indicator, (5) direct-control panel, (6) pressure sensor, (7) on/off button, (8) power port, (9) pressure curve diagram, (10) parameter setting and display buttons, (11) control buttons, (12) T-adapter port, (13) syringe port, (14) pressure port