Patents by Inventor Michel Berthier

Michel Berthier 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).

  • Syringe with a slidable needle protection device
    Patent number: 5429612
    Abstract: This device for an injection syringe including a cylindrical body (2) closed at one of its ends by a transverse wall in which the needle (6) is implanted, is such that the end of the cylindrical body is fitted with a slideway (7) for a needle protector (8) that includes a first tubular portion (9) of large diameter suitable for sliding along the slideway (7) between two positions that are axially separate from each other, and a small diameter portion (10) that extends the large diameter portion longitudinally, forming a moving protective sheath for the end of the needle (6), guiding and indexing elements (11, 12, 14, 16, 22, 26) being provided in inaccessible manner between the slideway (7) and the large diameter portion (9) of the protector so as to allow the needle to be uncovered and then recovered in succession once only.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: July 4, 1995
    Assignee: Dentoptic
    Inventor: Michel Berthier