Patents by Inventor Dieter Wendelborn

Dieter Wendelborn 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 sampling device with blood-viewing chamber
    Patent number: 5181523
    Abstract: A blood sampling device comprises a pointed cannula (3, 23) at each end, a pre-evacuated sample container (1, 21) with a self-sealing stopper (2, 22) which can be perforated, a self-sealing membrane (8,28) which can be perforated and a blood-viewing chamber (7, 27) the walls of which are surrounded by transparent material arranged in front of the stopper (2, 22) in the direction of perforation. The chamber (7, 27) is arranged on the stopper (2, 22) and is sealed off essentially from the sample container (1, 21) by said stopper (2, 22) and from the patient by the membrane (8, 28).
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: January 26, 1993
    Inventor: Dieter Wendelborn