Karin Buttner Janz, Arnold Keller, Jean Philippe Lemaire: Intervertebral disc endoprosthesis. Waldemar Link & Co, Chilton Alix & Van Kirk, March 28, 1995: US05401269 (733 worldwide citation)

Intervertebral disc endoprosthesis with two prosthesis plates which are to be connected to the end plates of the relevant vertebrae, and with a prosthesis core which cooperates with at least one prosthesis plate via an articular surface permitting a rotational movement around the vertical axis, In o ...

Arnold Keller: Surgical instrument set. Waldemar Link & Co, Chilton Alix & Van Kirk, March 5, 1991: US04997432 (530 worldwide citation)

The surgical instrument set for the insertion of intervertebral endoprostheses, which consist of two stop plates and a sliding core to be arranged between them, is characterized in that it has spreading forceps (9) which have, at their front end on each spreading jaw (10, 11), an essentially U-shape ...

Arnold Keller: Forceps for inserting intervertebral device. Waldemar Link & Co, Chilton Alix & Van Kirk, June 16, 1992: US05122130 (453 worldwide citation)

A spreading forceps (9) which has, at its front end on each spreading jaw (10, 11), an essentially U-shaped recess surrounding one stop plate on three sides and gripping the edge, the thickness of the spreading jaws (10, 11) in the spreading direction being essentially identical to the thickness of ...

Arnold Keller: Spinal fixing device. Waldemar Link, Morrison & Foerster, October 31, 2000: US06139549 (263 worldwide citation)

Fixator for vertebra or bone fragments, with a rod and at least one pedicle screw which is to be secured thereon. The U-shaped head of the pedicle screw forms a receiving seat for the rod, which receives a fixing device for fixing the rod. The fixing device comprises a U-shaped clamping yoke whose l ...

Arnold Keller: Bone plate arrangement. Waldemar Link & Co, Chilton Alix & Van Kirk, August 10, 1993: US05234431 (231 worldwide citation)

A bone plate arrangement consisting of a bone plate with at least one through-opening and a bone screw to be introduced into the through-opening. The bone screw is held in the bone plate by means of a sleeve, which can be fixed in the through-opening of the bone plate independently of the screw. The ...

Arnold Keller: Intervertebral endoprosthesis with a toothed connection plate. Waldemar Link, Morrison & Foerster, July 9, 2002: US06416551 (215 worldwide citation)

An implant, in particular an intervertebral endoprosthesis, with a connection plate (

Arnold Keller: Surgical chisel. Waldemar Link & Co, Townsend and Townsend, May 6, 1986: US04586496 (161 worldwide citation)

A surgical chisel is formed by a flexurally rigid chisel shank and a thin, elongated chisel blade fixed at its front end, which are both displaceably guided in slideways in a chisel guide, which lends the chisel blade buckling resistance.

Karl Bernahrd Otto, Arnold Keller: Acetabular cup. GMT Gesellschaft für madizinische Technik mbH, Waldemar Link & Co KG, Henry M Feiereisen, September 18, 2001: US06290727 (107 worldwide citation)

An acetabular cup is supported by a pelvic bone and includes an outer surface which rests in a cavity, and a bearing surface which receives an articular body of an artificial hip joint and bounded in surrounding relation by a receiving edge. The receiving edge is provided at least at one area with a ...

Arnold Keller, Paul C McAfee: Intervertebral prosthesis. Cervitech, Morrison & Foerster, February 21, 2006: US07001432 (105 worldwide citation)

An intervertebral prosthesis, in particular for the cervical spine, includes a first cover plate to be connected to a first vertebral body, a second cover plate to be connected to the second vertebral body, and a prosthesis core which forms an articulation with the second cover plate. The prosthesis ...

Arnold Keller: Multi-part cervical endoprosthesis with insertion instrument. Cervitech, Morrison & Foerster, January 22, 2008: US07320689 (97 worldwide citation)

A multi-part intervertebral endoprosthesis includes a top closure plate, a bottom closure plate, a sliding core between the closure plates, each closure plate having a pair of receiving openings or projections, and an insertion instrument which has a handgrip area and a gripping area with retention ...