Patents by Inventor Leonard A. Wisdom

Leonard A. Wisdom has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Blood bag system with integral filtering means
    Patent number: 4919823
    Abstract: A multiple blood bag system is disclosed having at least two blood bags and conduit means providing sealed flow communication between the bags and a filtering means integrally disposed between two of the bags for removing platelets and white cells from a red cell concentrate in the blood bag system. In the method of the invention a red cell concentrate is provided in one of the blood bags of the above system and an additive solution is mixed therewith. The mixture of the red cell concentrate and additive solution is passed through the filtering means from one of the bags to another.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: April 24, 1990
    Assignee: Miles Inc.
    Inventor: Leonard A. Wisdom
  • Method of removing platelets and white cells from a red cell concentrate
    Patent number: 4767541
    Abstract: A multiple blood bag system is disclosed having at least two blood bags and conduit means providing sealed flow communication between the bags and a filtering means integrally disposed between two of the bags for removing platelets and white cells from a red cell concentrate in the blood bag system. In the method of the invention a red cell concentrate is provided in one of the blood bags of the above system and an additive solution is mixed therewith. The mixture of the red cell concentrate and additive solution is passed through the filtering means from one of the bags to another.
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: August 30, 1988
    Assignee: Miles Laboratories, Inc.
    Inventor: Leonard A. Wisdom
  • Plasma bags
    Patent number: 4619650
    Abstract: A plasma transfer bag for containing plasma, the bag having a line of weakness extending from the top to the bottom of the bag, the bag being made from two sheets of translucent flexible material which is flexible at -40.degree. C., the sheets being welded together around the edges and across the bottom to provide plasma containment means, the sheets extending from the bottom weld to form an extension having a break therein, the bag may be held and pulled transversely to enable the bag to be torn from the break to the top of the bag along the line of weakness.
    Type: Grant
    Filed: April 9, 1985
    Date of Patent: October 28, 1986
    Assignee: Miles Laboratories, Inc.
    Inventor: Leonard A. Wisdom
  • Blood bag system with integral filtering means
    Patent number: 4596657
    Abstract: A multiple blood bag system is disclosed having at least two blood bags and conduit means providing sealed flow communication between the bags and a filtering means integrally disposed between two of the bags for removing platelets and white cells from a red cell concentrate in the blood bag system. In the method of the invention a red cell concentrate is provided in one of the blood bags of the above system and an additive solution is mixed therewith. The mixture of the red cell concentrate and additive solution is passed through the filtering means from one of the bags to another.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: June 24, 1986
    Assignee: Miles Laboratories, Inc.
    Inventor: Leonard A. Wisdom