Disposable balancing unit for balancing fluids, and related medi

Details Disposable balancing unit for balancing fluids, and related medi Disposable balancing unit for balancing fluids, and related medi

1996-12-09

1998-11-17

Weiss, John G.

Surgery

Means for introducing or removing material from body for...

Material introduced into and removed from body through...

2103216, 21032164, A61M 128

Patent

active

058369082

ABSTRACT:
A disposable balancing unit designed as a sheet bag includes two sheets (1, 2), which are heat-sealed together, forming a balancing chamber (4) that is divided by a flexible wall (8) into the two chamber halves (9, 10), and forming two equalization chambers (5, 6), as well as the channels (15 through 18) connecting the individual chambers. The flexible wall (8), which separates the first chamber half (9) of the balancing chamber (4) from the second chamber half (10), is formed by an intermediate sheet, which is inserted between the first and second sheet (1, 2) in the area of the balancing volume and is heat-sealed in a pressure-tight manner to the outer sheets, forming the first and second chamber half (9, 10). The fixed volume of the balancing chamber halves (9, 10) is specified by a corresponding system insert unit, into which the disposable unit is fittingly inserted. The system insert unit has two rigid receiving bodies (25, 26) with trough-shaped depressions (27) to grasp above or below the balancing chamber (4) of the disposable unit. The disposable balancing unit can be manufactured cost-effectively in a single heat-sealing operation and is easy to handle.

REFERENCES:
patent: 3709222 (1973-01-01), DeVries
patent: 4366061 (1982-12-01), Papanek et al.

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