Patents by Inventor Hans Schurch

Hans Schurch 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).

  • Patent number: 9333055
    Abstract: Abutment for a dental implant including an apical base portion equipped with profiled sections, a rotationally symmetrical transition portion bordering coronally on the base portion, a section bordering coronally on the transition portion and equipped with a wave-shaped rim, and an occlusal portion bordering coronally on the transition portion, the occlusal portion not being configured circular symmetric, a shoulder of irregular width is formed between the upper rim of section and the lower rim of the occlusal portion, the variation in width of the shoulder increasing from a minimum width to a maximum width by about 30% to 150% with respect to the minimum width of the shoulder.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: May 10, 2016
    Assignee: STRAUMANN HOLDING AG
    Inventors: Marc Zettler, Hans Schürch
  • Publication number: 20100196855
    Abstract: Impression post for a dental implant, having a sleeve-shaped impression cap (4) with a coupling section (16) configured to be connected to the dental implant (20), and a substantially cylindrical recess (6) extending in the longitudinal direction of the impression cap (4) and an attachment element (8) engaging through the recess (6) for attaching the impression cap (4) on the dental implant (20). The impression cap (4) has an inner sleeve (10) and an outer sleeve (12) radially surrounding said inner sleeve on the outside, which outer sleeve is detachably connected to the inner sleeve (10), and the coupling section (16) is at least partly an element of the inner sleeve (10).
    Type: Application
    Filed: January 28, 2010
    Publication date: August 5, 2010
    Applicant: Straumann Holding AG
    Inventors: Daniele Müller, Hans Schürch, Fabian Schwieder, Frank Kenk, Holger Kast
  • Publication number: 20080233538
    Abstract: A two-part screw for a dental implant with a screw rod and a nut, which is sized so as to be received into a screw passage channel of an abutment in an axially secured manner, and which is formed with an inner thread for screwing connection to a first coronal thread on the screw rod, the screw rod being furnished with a second apical thread, which is formed to screwingly connect the screw to the dental implant; the construction made up of screw rod and nut can be replaced with a screw with a screw bush.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 25, 2008
    Applicant: STRAUMANN HOLDING AG
    Inventors: Thomas Silvan Hug, David Egli, Hans Schurch
  • Publication number: 20080057476
    Abstract: Abutment for a dental implant comprising: an apical base portion equipped with profiled sections, a rotationally symmetrical transition portion bordering coronally on the base portion, a section bordering coronally on the transition portion and equipped with a wave-shaped rim, and an occlusal portion bordering coronally on the transition portion, the occlusal portion not being configured circular symmetric, and an shoulder of irregular width being formed between the upper rim of section and the lower rim of the occlusal portion, the variation in width of the shoulder ranging between about 20% and about 300%.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 6, 2008
    Applicant: STRAUMANN HOLDING AG
    Inventors: Marc Zettler, Hans Schurch
  • Patent number: 7207801
    Abstract: An assembly for handling a bone implant includes a transfer cap which can be snapped onto the implant, and an adapter which engages with the implant. The head of the implant has a polygonal socket, an outer implant shoulder, and a shoulder edge located beneath the shoulder, while the transfer cap has an elastic lip that snaps over the shoulder edge, and the adapter has a polygonal drive projection adapted to engage within the polygonal socket. The adapter also has a plug-type extension for attaching a screw-in instrument. When the transfer cap is snapped onto the implant and the adapter is inserted, the polygonal projection engages with the polygonal socket on the implant, while the plug-type extension of the adapter that projects through the transfer cap is located on the outside. The transfer cap and the adapter plugged therein are detachably connected to one another.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: April 24, 2007
    Assignee: Straumann Holding AG
    Inventors: Martin Vogt, Hans Schurch
  • Patent number: 5734113
    Abstract: The torque wrench (1) comprises a torque instrument (10) which is known per se--in the present case a ratchet instrument--as well as a torque indicator (40) which can be attached thereto. The torque indicator (40) possesses a sleeve-shaped support (41) which can be pushed onto the handle (12) of the torque instrument (10) and on which a linearly elastic bending rod (51) is fastened. Upon operation, the force (F) is exerted upon the free end of the bending rod (51) and the torque generated is displayed on a graduation (48). At its very front the support (41) possesses a non-rotationally symmetrical insertion zone (42) which receives the transition region (121) of the handle (12) in a manner fixed against rotation. The principal advantages of the torque wrench (1) are its dismantlability and the combination possibilities. The display accuracy of the torque indicator (40) is checked using a special test device.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: March 31, 1998
    Assignee: Institut Straumann AG
    Inventors: Martin Vogt, Werner Schmutz, Hans Schurch, Eduardo Stadelmann
  • Patent number: 4875475
    Abstract: The device comprises an intramedullar nail adapted to be driven into a hollow bone. The proximal terminal nail segment comprises an internal thread and a transversely penetrating longitudinal slot adapted to receive a screw to penetrate through the nail and to be screw-connected with the bone. The distal terminal nail segment comprises two transversely throughgoing holes each adapted to receive a screw to be screw-connected with the bone. An adjusting means comprises a bolt as adjusting member provided with an external thread screwed directly into the internal thread of the nail, or screwed into the internal thread of an insert in turn screwed into the internal thread of the nail, the bolt being adapted to be brought into direct or indirect engagement with the screw transversely penetrating through the longitudinal slot. By turning the bolt the screw may be pressed toward the distal end of the nail and displaced toward the same.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: October 24, 1989
    Assignee: Synthes (U.S.A.)
    Inventors: Pierre-Andre Comte, Hans Schurch, Gebhard Ritter