The Suction-Irrigator is important in keyhole surgery to clean the internal site with fluid and suck debris away through a long tube mounted inside the conical Cap. By alternating the two plungers, the surgeon may vacuum away fluids and also irrigate the site to cleanse and allow better vision with the camera.

The EndoFlow main Body required 3 parts that assemble together to make the finished unit – 2 Caps  and the main Handpiece. The two Caps have internal threads and the Handpiece also needed 4 sliding cores to form internal holes (1 is underneath the mould face) The sliding cores are moved when the mould opens by the angle pins shown.

The threads are demoulded by the long leadscrew (shown in the picture) which turn gears inside the mould which rotate the threaded cores. This design removes the need for hydraulic or electric motors or other complex means to rotate the threaded cores.

The two Plungers (white and blue) were made in another mould.