Method and device for aseptically dispensing multiple portions of a fluid

摘要

A method and a device for dispensing multiple portions of a fluid, the fluid being stored in a container comprising a port and a flexible dispensing tube having an inlet and an outlet, the inlet being integrally sealed to the port and viscoelastic valve is mounted in the outlet. The method comprising a compression step and a step of terminating compression wherein the method comprises a further step implemented at the end of the compression step of releasing the pressure in the tube portion between the first tube portion and the valve.

主权项

1. A device for dispensing multiple portions of a fluid, the fluid being stored in a container comprising a port and a dispensing tube having an inlet and an outlet, the inlet being sealed to the port and a valve being mounted in the outlet, the valve comprising: a delivery block having an input port for receiving fluid exiting the tube outlet and an internal channel beginning at the input port and terminating in at least one output port, an elastomeric membrane for enveloping the delivery block such that a portion of the elastomeric membrane covers the at least one output port and the downstream end of the elastomeric membrane forms the valve outlet, the device comprising:
a pump comprising a static member and a mobile member for compressing a first portion of the tube to form pressure in the tube between the first tube portion and the valve; a member for releasing the pressure in the tube between the first tube portion and the valve, and the releasing member is downstream from the pump and is a compressor for subjecting a second portion of the tube located downstream of the first tube portion to a short compression; and a controller configured to inactivate the pump, activate the compressor after inactivating the pump, and deactivate the compressor while the pump is still inactive to establish a pressure in the second portion of the tube that closes the output port with the elastomeric membrane.