Patents by Inventor Walter Hauri

Walter Hauri 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).

  • Holder for blood collection needle with blunting mechanism
    Patent number: 6146337
    Abstract: The present invention relates to a self-blunting blood collection needle (55) in which a blunting member (26a) is deployed upon withdrawal of a blood collection tube (56a) from the tube holder (e.g., 136), to blunt the needle (22) and so safeguard the patient and the technician from inadvertent needle sticks. The blunting member (26a) is retracted to re-sharpen the needle (22) when a subsequent collection tube is inserted into the holder (136). The deployment and retraction of the blunting member (26a) is accomplished with a mechanism (142) that is responsive to the insertion and withdrawal of the blood collection tube (56a) to retract and deploy the blunting member (26a) accordingly. One feature of the present invention is that the mechanism (142) effects blunting and re-sharpening of the needle without requiring that the technician manipulate the mechanism in a manner different from that of conventional, non-blunting collection needles.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: November 14, 2000
    Assignee: Bio-Plexus, Inc.
    Inventors: John M. Polidoro, Walter Hauri, P. Spencer Kinsey, Richard G. Holdaway, Carl R. Sahi