1
Hansen A Yuan, Chih I Lin, James A Davidson, Laura C Small, Thomas A Carls: Low wear artificial spinal disc. Smith & Nephew, Pravel Hewitt Kimball & Krieger, October 14, 1997: US05676701 (723 worldwide citation)

An artificial spinal disc for surgical placement between adjacent vertebrae including a first component for attaching to a first vertebrae, the first component having a concave recess, with the concave contoured surface having a circumference of 360.degree.. A second component for attaching to a sec ...


2
Douglas W Kohrs, Hansen A Yuan, David W Stassen: Spinal implant. Spine Tech, Merchant Gould Smith Edell Welter & Schmidt, March 11, 1997: US05609636 (547 worldwide citation)

An implant for use in spinal stabilization includes four generally linear thread segments. The thread segments are maintained and spaced apart alignment by rigid supports. The thread segments include a plurality of individual threads with the individual threads of the segments defining a thread patt ...


3
Qi Bin Bao, Hansen A Yuan: Implantable tissue repair device. Advanced Bio Surfaces, Fredrikon & Byron P A, May 1, 2001: US06224630 (541 worldwide citation)

A surgical device and related method and kit for use in sealing a biological aperture in situ. In one embodiment, the device is provided in the form of an expandable, porous material such as poly(vinyl alcohol).


4
Douglas W Kohrs, Hansen A Yuan, David W Stassen: Intervertebral fusion implant. Spine Tech, Merchant Gould Smith Edell Welter & Schmidt, August 19, 1997: US05658337 (329 worldwide citation)

A intervertebral fusion implant includes first and second bearing surfaces which oppose cortical bone upon insertion of the implant into a bore formed between two vertebrae. The implant includes first and second ridges which extend from the bearing surface. The ridges extend through the cortical bon ...


5
Qi Bin Bao, Paul A Higham, Charanpreet S Bagga, Hansen A Yuan: Method and apparatus for injecting an elastic spinal implant. Howmedica, Peter C Richardson, Lawrence C Akers, Elizabeth O Slade, September 1, 1998: US05800549 (319 worldwide citation)

A method and apparatus for injecting an elastic spinal implant into a cavity in a spinal disc so as to treat disc degeneration are given. The method and apparatus can be used in a variety of surgical approaches with respect to the patient. An elastic spinal nucleus prosthesis is very quickly inserte ...


6
Edward C Benzel, Hansen A Yuan, Alex Dinello, Michael H Wefers, Aaron C Smith: Apparatus for retaining bone portions in a desired spatial relationship. AcroMed Corporation, Tarolli Sundheim Covell Tummino & Szabo, February 3, 1998: US05713900 (306 worldwide citation)

An apparatus for retaining first and second bone portions in a desired spatial relationship comprises a first member positionable along the first and second bone portions. A second member connectable with the first bone portion has surface member defining an opening. A fastener is extendable through ...


7
Hansen A Yuan, Chih I Lin: Vertebral auxiliary fixation device having holding capability. October 28, 1997: US05681310 (269 worldwide citation)

A vertebral auxiliary fixation device comprises a holding mat and a plurality of fastening elements. The holding mat is fastened by the fastening elements to a vertebra such that the holding mat covers the outer side of a foreign object which is implanted in the vertebra, and that the holding mat pr ...


8
Hansen A Yuan, Chih I Lin: Vertebral auxiliary fixation device. Bacon & Thomas, April 1, 1997: US05616142 (259 worldwide citation)

A vertebral auxiliary fixation device comprises a receiving piece, a sliding piece, and a plurality of fastening elements. The receiving piece is provided with two sliding grooves in which the sliding piece is slidably received. The receiving piece and the sliding piece are provided respectively wit ...


9
Hansen A Yuan, Bruce E Fredrickson, W Thomas Edwards: Spinal fixation systems with bifurcated connectors. AMEI Technologies, Baker & Botts, August 1, 1995: US05437669 (258 worldwide citation)

A system and method to form a surgical construct using spinal rods and bifurcated connectors. One or more spinal rods such as those used in fusing vertebrae of the spine are attached with the bifurcated connectors to form the surgical construct. The bifurcated connector may be used with pedicle scre ...


10
Qi Bin Bao, Robert Garryl Hudgins, Jeffrey C Felt, Alexander Arsenyev, Hansen A Yuan: Intervertebral disc prosthesis. Disc Dynamics, Faegre & Benson, February 21, 2006: US07001431 (212 worldwide citation)

A system for repairing an intervertebral disc by delivering and curing a biomaterial in situ within the disc. The system includes both a device, having an insertable balloon and related lumen, controls and adapters, as well as an in situ curable biomaterial (and related biomaterial delivery means). ...