James Alan Drago, 50633 Missouri St, San Diego, CA 92109

6045546, Apr 4, 2000

Aug 16, 1995

8/515692

James A. Drago - El Sobrante CA
Bruce Kuhlemann - Hayward CA
Richard Spielberg - Yerba Linda CA

Pall Corporation - East Hills NY

A61B 1900

604408

Apparatus and method for collecting, processing, and storing blood components, such as plasma. The method involves collecting the blood component in a flexible storage bag manufactured from ethylene vinyl acetate EVA, having a composition of between about 9% and about 18% vinyl acetate by weight of total EVA co-polymer. The EVA bag is sealed, and the sample is frozen in the bag at a temperature of at least as low as -30. degree. C. to form a substantially solid pellet contained in the storage bag. The bag then is fractured and the pellet is removed in its intact, frozen form. The co-polymer bag may have an inner surface with an etched or embossed pattern of sufficient dimensions to permit removal of the plasma in a frozen state from the storage bag.

5578027, Nov 26, 1996

Jun 6, 1995

8/466614

James A. Drago - El Sobrante CA
Bruce Kuhlemann - Hayward CA
Richard Spielberg - Yerba Linda CA

Pall Corporation - East Hills NY

A61B 1900

604408

Apparatus and method for collecting, processing, and storing blood components, such as plasma. The method involves collecting the blood component in a flexible storage bag manufactured from ethylene vinyl acetate EVA, having a composition of between about 9% and about 18% vinyl acetate by weight of total EVA co-polymer. The EVA bag is sealed, and the sample is frozen in the bag at a temperature of at least as low as -30. degree. C. to form a substantially solid pellet contained in the storage bag. The bag then is fractured and the pellet is removed in its intact, frozen form. The co-polymer bag may have an inner surface with an etched or embossed pattern of sufficient dimensions to permit removal of the plasma in a frozen state from the storage bag.

5578028, Nov 26, 1996

Jun 6, 1995

8/467474

James A. Drago - El Sobrante CA
Bruce Kuhlemann - Hayward CA
Richard Spielberg - Yerba Linda CA

Pall Corporation - East Hills NY

A61B 1900

604408

Apparatus and method for collecting, processing, and storing blood components, such as plasma. The method involves collecting the blood component in a flexible storage bag manufactured from ethylene vinyl acetate EVA, having a composition of between about 9% and about 18% vinyl acetate by weight of total EVA co-polymer. The EVA bag is sealed, and the sample is frozen in the bag at a temperature of at least as low as -30. degree. C. to form a substantially solid pellet contained in the storage bag. The bag then is fractured and the pellet is removed in its intact, frozen form. The co-polymer bag may have an inner surface with an etched or embossed pattern of sufficient dimensions to permit removal of the plasma in a frozen state from the storage bag.

4229299, Oct 21, 1980

Mar 22, 1978

5/888858

Steven R. Savitz - Astoria NY
James A. Drago - Brewster NY

Hoechst Aktiengesellschaft - Frankfurt

B01D 3100

210 85

Peristaltic pump means for pumping dialysate solution through a dialysate solution flow circuit in a hemodialysis system. The pump comprises four rollers mounted on a rotatable base member with a relatively long segment of flow circuit tubing tensionally extended around the pump head so as to be simultaneously engaged and compressed by at least two of the rollers, the rollers being mounted for longitudinal movement of the points of compression along the tubing during rotation of the pump head assembly to advance dialysate solution through the flow circuit. The disclosed pump means provides a substantially uniform dialysate solution flow rate under conditions of varying dialysate solution negative pressure and is particularly suitable for use in a unitary, portable hemodialysis module of a type adapted for coupling with either a single-pass proportioning system or a batch dialysate solution supply. A proportioning system is disclosed for such arrangement which employs a recirculating deaeration means for removal of soluble gases from the water employed for make-up of dialysate solution. The peristaltic dialysate solution pump is mounted in the portable hemodialysis module in a manner which facilitates rapid changeover from single-pass to batch dialysate solution flow, and vice versa.