1
Jurgen Harms, Lutz Biedermann: Pedicle screw. Donald Brown, August 7, 1990: US04946458 (632 worldwide citation)

A pedicle screw (1) for use in the monosegmental or multisegmental stabilization of the spinal column comprises a thread and a receiver portion. In order to facilitate the mounting and to reduce the stress of the screw and the threaded rods for connection therewith, a threaded shaft part (2) and a r ...


2
Lutz Biedermann, Jurgen Harms: Anchoring member. George W Neuner, September 30, 1997: US05672176 (581 worldwide citation)

An anchoring member for connecting a rod with a bone comprises a screw member having a treaded portion and a screw head with a spherical segment-shaped portion, a seat part receiving said screw head of said screw member and said rod, and a pressure member formed to embrace said screw head from its s ...


3
Jurgen Harms, Lutz Biedermann: Pedicle screw and receiver member therefore. Prufer, Donald Brown, May 4, 1993: US05207678 (543 worldwide citation)

For a pedicle screw a receiver member is provided for hingedly connecting a screw (2) comprising a threaded shaft portion (3) and a spherical-segment-shaped head (4) on the one hand and a rod (16) on the other hand. In order to improve the stocking costs for screws of different shaft lengths and sha ...


4
Lutz Biedermann, Jurgen Harms: Bone screw. Biedermann Motech, Donald Brown, August 22, 1995: US05443467 (538 worldwide citation)

A bone screw comprises a receiver member (5) and a screw member (1) having a threaded portion (2) and a head (3) having a spherical segment-shaped portion. The receiver member (5) comprises an internal thread (10) for allowing a relative adjustment of receiver member and screw member and the connect ...


5
Lutz Biedermann, Jurgen Harms: Anchoring member and adjustment tool therefor. George W Neuner, February 10, 1998: US05716356 (338 worldwide citation)

An anchoring member is provided with a shaft 2, 12 for anchoring in a bone and a head 3, 53 with a substantially U-shaped cross-section for connection with a rod 9, 59, the head having a base 5, 55 connected with the shaft 2, 12 and two free legs 6, 7; 56, 57 forming a channel for receiving the rod ...


6
Jurgen Harms, Lutz Biedermann: Place holder, in particular for a vertebra body. R T Gammons, April 11, 1989: US04820305 (315 worldwide citation)

A prosthesis in the form of a hollow, cylindrical jacket for insertion in the gap between adjacent bone ends, the jacket being provided with reticulated sides and with toothed ends for engagement with the bone ends.


7
Lutz Biedermann, Jurgen Harms: Bone screw. Donald Brown, George W Neuner, May 11, 1993: US05209753 (272 worldwide citation)

A bone screw (1) has a threaded portion (2) and a head (3). Such screws are used in particular as pedicle screws. In order that the bone screw can be anchored securely also in soft bone tissue, the screw is provided with a longitudinal bore (5) extending along the longitudinal axis of the threaded p ...


8
Jurgen Harms, Lutz Biedermann: Positioning device. Donald Brown, August 27, 1991: US05042982 (258 worldwide citation)

A positioning means for stabilizing segments of the spinal column or dummies between two such segments has a simple design and allows a certain alignment of the connecting rods to be connected thereto. To this end a positioning screw (1) is provided which comprises a threaded shaft part (2) and a re ...


9
Lutz Biedermann, Jurgen Harms: Locking tool. George W Neuner, October 28, 1997: US05681319 (258 worldwide citation)

A locking tool is described for connecting a bone screw with a rod having a predetermined diameter. The bone screw includes a screw member having a threaded portion and a head with spherical segment-shaped portion, and a cylindrical seat part for receiving the head and the rod. The seat part has two ...


10
Lutz Biedermann, Harry L Shufflebarger, Jurgen Harms: Anchoring member. Biedermann Motech, George W Neuner, August 13, 1996: US05545165 (256 worldwide citation)

An anchoring member is provided which comprises a shaft 2 to be fastened to a bone and a head 3 for connection with a rod 10, the head having a substantially U-shaped cross-section and being connected with the shaft 2 at the base 5 thereof, the head further comprising two free legs 6, 7 defining a c ...