Method for providing a circuit for biological liquid and circuit obtained

摘要

The method comprises the step of forming pipes (12) by clamping a bag between shells (13, 14) and by injecting an inflating agent via an inflating connector.;The circuit comprises a bag (126) and a press (10) comprising two shells (13, 14) clamping said bag in a state in which pipes (12) are formed between the films (25, 26) of the bag.

主权项

1. A method comprising:
providing a circuit for routing biological liquid, the circuit comprising a press, a disposable bag, routing network connectors, and a routing network for routing the liquid between said connectors, the circuit being formed by steps of:
providing the disposable bag as two flexible films attached together by a seal delimiting a closed contour with said routing network connectors and an inflating connector, said routing network connectors and said inflating connector each opening respectively inside of said closed contour and outside of said closed contour;providing the press as two shells, said shells each comprising at least one recessed channel; andforming pipes of said routing network between said films by clamping said bag between said shells and by injecting a pneumatic inflating agent into said bag clamped between said shells via said inflating connector, said bag and said press being configured such that at least one of said pipes has a contour of which at least one portion is delimited exclusively by cooperation with said press, the portion of the contour of the at least one pipe which is delimited exclusively by cooperation with the press including contact zones between the films, said contact zones bordering said at least one pipe and being fluid-tight, and said injecting causing said pipes to each be formed into conformity with opposing recessed channels of the two shells to define said contour of which at least one portion is delimited exclusively by cooperation with said press; wherein said circuit can only be used while said bag remains clamped between said shells.