Gelman Sciences, Inc.

Karlis Vizulis

Monty E Vincent

Charles E vonReis

The disposable filter device of the invention has a housing with a fluid inlet chamber and fluid outlet chamber separated by a hydrophobic filter and having a hydrophilic filter on the inlet chamber side of the hydrophobic filter. In the liquid aspirating system, the disposable filter device is connected between the liquid collection container and the inlet to the aspirator, the hydrophobic filter functioning to prevent the passage of any liquid to the aspirator and the hydrophilic filter functioning to prevent a large accumulation of liquid on the inlet chamber of the filter device and to better assure against any spillage of liquid in the inlet chamber during replacement of the device.

Disposable filter device and liquid aspirating system incorporating same

The filter device of this invention comprises a housing with an inlet chamber and an outlet chamber separated by a deformable microporous membrane, the outlet chamber containing a perforated membrane support surface of concave compound curvature which is spaced from the wall of the outlet chamber, the deformable membrane being in contact with and conforming to the compound curvature of the support surface when fluid flows through the membrane from the inlet chamber to the outlet chamber.

Growing community of inventors

Ann Arbor, MI, United States of America

Karlis Vizulis