Patents by Inventor Bjarne Kvarnström

Bjarne Kvarnström 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).

  • Bone implant
    Patent number: 6312259
    Abstract: An implant for providing an anchor in bone tissue. A retention portion for implanting into the bone tissue includes at least one retention member for retaining the implant in a preprepared hole in the bone tissue and includes an insertion end. An abutment portion extends from the retention portion opposite the insertion end and has a larger diameter than the retention portion. The abutment portion is for passing through soft tissue one the bone tissue. A stop portion extends from the abutment portion for contacting a member attached to the implant. An attachment groove includes an attachment surface for attaching at least one member connected to another structure. A top portion has a diameter greater than the attachment groove.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: November 6, 2001
    Assignee: Nobel Biocare AB
    Inventors: Bjarne Kvarnström, Michael Luft, Scott Lipka
  • Arrangement and its use for anchoring a threaded implant in bone, for example dentine
    Patent number: 6280194
    Abstract: In an arrangement for anchoring a threaded implant (1) in jawbone (2) by means of a screwing instrument (6), use is made of an implant which, at its upper part, is provided with an anchoring hole (1c) for a screw (5) intended to secure an element or fixture holder (4) that can be attached to the implant. The centre axis of the anchoring hole is inclined in relation to the longitudinal axis (1b) of the implant. The element is provided with means (4d) for cooperation with the instrument (6). The element and its means of cooperation permit application of the instrument in a way which ensures that the axis of rotation (6d) of the instrument essentially coincides with a continuation of the longitudinal axis (1b) of the implant.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: August 28, 2001
    Assignee: Nobel Biocare AB
    Inventors: Göran Björn, Bjarne Kvarnström
  • Method and arrangement for executing a cemented superstructure and also distance member and set of distance members
    Patent number: 6276938
    Abstract: A distance member is designed so as to make possible a cemented superstructure in the jaw and can be fastened to the implant in the jaw by means of a screw member. The distance member has a prefabricated external shape which is individually adapted to the respective dental situation in question for the purpose of rendering unnecessary substantial shape modification work in connection with construction of the superstructure in the jaw. The prefabricated shape has a shelf-shaped projecting part located between the upper and lower parts of the distance member and the distance member is designed with an internal counterholder which prevents torque being transmitted from the tool to the implant.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: August 21, 2001
    Assignee: Nobel Biocare AB
    Inventors: Lars Jörneus, Bjarne Kvarnström