Abstract: The evacuating apparatus is used to evacuate a bottle which is fitted with a sealing cap which has a cap bore that accommodates a displaceable plug. The apparatus comprises a platform on which to stand the bottle, and a plunger directed towards the platform. An actuating arrangement operated by a manually operable lever serves firstly to extend the plunger together with an assembly in which the plunger is mounted, to push the displaceable cap plug from a first, sealing position within the cap to a second, non-sealing position. Continued movement of the actuating lever operates to apply suction through the plunger to evacuate the bottle via the cap bore. After the bottle is evacuated the plunger is further extended by displacement displacing relative to the assembly in which it is mounted, to push the displaceable plug into a third, sealing position within the cap.

Abstract: A suction generating device comprises a barrel 10 within which may slide a plunger 26. A chamber 30 within the plunger is so sealed at each end that it increases in volume as the plunger is manually displaced inwardly of the barrel. An inlet 16 of the device is connected to the chamber 30 by a stem 18 so that inward movement of the plunger generates suction at the inlet 16. The device is particularly suited for single handed utilization as a blood sampling syringe or as a fluid transfer device.