Patents by Inventor Hansen A. Yuan

Hansen A. Yuan 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).

  • Publication number: 20190133777
    Abstract: A spine stabilization device having an interbody spacer shaped to be inserted between a vertebral body of an upper vertebra and a vertebral body of a lower vertebra. The device further includes a fixation device to be inserted after placement of the interbody spacer, the fixation device having a support portion securing the interbody spacer against escaping from between the vertebral bodies into a ventral direction. The support portion rests against a portion of an anterior surface of the interbody spacer, and includes an anchor. The anchor has an anchoring material portion that is inserted, in a liquid state, into cancellous bone tissue of at least one of the vertebral bodies of the upper and lower vertebra, to thereby infiltrate the cancellous bone tissue, and to harden thereafter so as to fix the support portion to the vertebral body.
    Type: Application
    Filed: December 28, 2018
    Publication date: May 9, 2019
    Inventors: Andrea Müller, Milica Berra, Marcel Aeschlimann, Mario Lehmann, Urs Weber, Jörg Mayer, Stephen Hochschuler, Hansen Yuan, Frank M. Phillips, Stephanie Mehl, Elmar Mock, Andreas Wenger, Philipp Seiler, Ulrich Berlemann
  • Patent number: 10195045
    Abstract: A spine stabilization device having an interbody spacer shaped to be inserted between a vertebral body of an upper vertebra and a vertebral body of a lower vertebra. The device further includes a fixation device to be inserted after placement of the interbody spacer, the fixation device having a support portion securing the interbody spacer against escaping from between the vertebral bodies into a ventral direction. The support portion rests against a portion of an anterior surface of the interbody spacer, and includes an anchor. The anchor has an anchoring material portion that is inserted, in a liquid state, into cancellous bone tissue of at least one of the vertebral bodies of the upper and lower vertebra, to thereby infiltrate the cancellous bone tissue, and to harden thereafter so as to fix the support portion to the vertebral body.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: February 5, 2019
    Assignee: SPINEWELDING AG
    Inventors: Andrea Müller, Milica Berra, Marcel Aeschlimann, Mario Lehmann, Urs Weber, Jörg Mayer, Stephen Hochschuler, Hansen Yuan, Frank M. Phillips, Stephanie Mehl, Elmar Mock, Andreas Wenger, Philipp Seiler, Ulrich Berlemann
  • Patent number: 9757249
    Abstract: An expandable implant device (100, 300, 600) for insertion between two vertebrae (400) is disclosed. The device (100, 300, 600) has a center body (10) one or more lift bodies (20, 40) and an external retaining band (60). The external retaining band (60) holds the sides (22, 42) of the one or more lift bodies (20, 40). The center body (10) has ramp surfaces (11) having a plurality or sets of ramps (11) sloped for allowing upward movement of the one or more lift bodies (20, 40). The sides (22, 42) have complimentary ramp surfaces that fit onto the ramps (11) of the center body (10). The height of the device (100, 300, 600) is increased by upward movement or downward movement or both of the one or more lift bodies (20, 40) driven by the lengthwise movement of the center body (10).
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: September 12, 2017
    Assignee: Amendia, Inc.
    Inventors: Jeffrey Scott Radcliffe, Joshua David Gunn, Hansen A Yuan
  • Publication number: 20170202675
    Abstract: An expandable implant device (100, 300, 600) for insertion between two vertebrae (400) is disclosed. The device (100, 300, 600) has a center body (10) one or more lift bodies (20, 40) and an external retaining band (60). The external retaining band (60) holds the sides (22, 42) of the one or more lift bodies (20, 40). The center body (10) has ramp surfaces (11) having a plurality or sets of ramps (11) sloped for allowing upward movement of the one or more lift bodies (20, 40). The sides (22, 42) have complimentary ramp surfaces that fit onto the ramps (11) of the center body (10). The height of the device (100, 300, 600) is increased by upward movement or downward movement or both of the one or more lift bodies (20, 40) driven by the lengthwise movement of the center body (10).
    Type: Application
    Filed: March 29, 2017
    Publication date: July 20, 2017
    Applicant: Amendia, Inc.
    Inventors: Jeffrey Scott Radcliffe, Joshua David Gunn, Hansen A. Yuan
  • Patent number: 9642720
    Abstract: An expandable implant device (100, 300, 600) for insertion between two vertebrae (400) is disclosed. The device (100, 300, 600) has a center body (10) one or more lift bodies (20, 40) and an external retaining band (60). The external retaining band (60) holds the sides (22, 42) of the one or more lift bodies (20, 40). The center body (10) has ramp surfaces (11) having a plurality or sets of ramps (11) sloped for allowing upward movement of the one or more lift bodies (20, 40). The sides (22, 42) have complimentary ramp surfaces that fit onto the ramps (11) of the center body (10). The height of the device (100, 300, 600) is increased by upward movement or downward movement or both of the one or more lift bodies (20, 40) driven by the lengthwise movement of the center body (10).
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: May 9, 2017
    Assignee: Amendia, Inc.
    Inventors: Jeffrey Scott Radcliffe, Joshua David Gunn, Hansen A Yuan
  • Patent number: 9351852
    Abstract: An artificial disc device for replacing a damaged nucleus is disclosed. In one form, the device may be inserted in components such that the device may be assembled within and retained by the natural annulus therein. In another form, the device may be inserted into the natural annulus in a collapsed or compressed state or arrangement and then be expanded within and retained by the annulus therein. In a further form, the device may be provided with a releasable connection so that the device may be connected in an insertion configuration and may be released in an operable configuration. Insertion tools and methods are also disclosed.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: May 31, 2016
    Assignee: PIONEER SURGICAL TECHNOLOGY, INC.
    Inventors: Qi-Bin Boa, Jeffrey L. Trudeau, Brian Patrick Janowski, Matthew N. Songer, Hansen A. Yuan, Thomas S. Kilpela, Gregory Berrevoets
  • Publication number: 20160074171
    Abstract: A spine stabilization device having an interbody spacer shaped to be inserted between a vertebral body of an upper vertebra and a vertebral body of a lower vertebra. The device further includes a fixation device to be inserted after placement of the interbody spacer, the fixation device having a support portion securing the interbody spacer against escaping from between the vertebral bodies into a ventral direction. The support portion rests against a portion of an anterior surface of the interbody spacer, and includes an anchor. The anchor has an anchoring material portion that is inserted, in a liquid state, into cancellous bone tissue of at least one of the vertebral bodies of the upper and lower vertebra, to thereby infiltrate the cancellous bone tissue, and to harden thereafter so as to fix the support portion to the vertebral body.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 17, 2016
    Inventors: Andrea Müller, Milica Berra, Marcel Aeschlimann, Mario Lehmann, Urs Weber, Jorg Mayer, Stephen Hochschuler, Hansen Yuan, Frank M. Phillips, Stephanie Mehl, Elmar Mock, Andreas Wenger, Philipp Seiler, Ulrich Berlemann
  • Patent number: 9220609
    Abstract: A spine stabilization device is provided, the spine stabilization device including an interbody spacer shaped to be inserted between a vertebral body of an upper vertebra and a vertebral body of a lower vertebra, and including a top surface oriented towards the lower endplate of the vertebral body of the upper vertebra and a bottom surface oriented towards the upper endplate of the vertebral body of the lower vertebra; and a fixation device to be inserted after placement of the interbody spacer, the fixation device including a support portion securing the interbody spacer against escaping from between the vertebral bodies of the upper and lower vertebra into a ventral direction, the support portion shaped to rest against a portion of an anterior surface of the interbody spacer, and further including an anchor, the anchor including an anchoring material portion that is configured to be inserted, in a liquid state, into cancellous bone tissue of at least one of the vertebral body of the upper vertebra and of th
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: December 29, 2015
    Assignee: SPINEWELDING AG
    Inventors: Andrea Mueller, Milica Berra, Marcel Aeschlimann, Mario Lehmann, Urs Weber, Jörg Mayer, Stephen Hochschuler, Hansen Yuan, Frank M. Phillips, Stephanie Mehl, Elmar Mock, Andreas Wenger, Philipp Seiler, Ulrich Berlemann
  • Patent number: 9198766
    Abstract: Cephalad and caudal vertebral facet joint prostheses and methods of use are provided. The cephalad prostheses are adapted and configured to be attached to a lamina portion of a vertebra without blocking a pedicle portion of the cephalad vertebra.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: December 1, 2015
    Assignee: GMEDELAWARE 2 LLC
    Inventors: Hansen Yuan, Mark A. Reiley, David Stinson, Lawrence R. Jones
  • Publication number: 20150173917
    Abstract: An expandable implant device (100, 300, 600) for insertion between two vertebrae (400) is disclosed. The device (100, 300, 600) has a center body (10) one or more lift bodies (20, 40) and an external retaining band (60). The external retaining band (60) holds the sides (22, 42) of the one or more lift bodies (20, 40). The center body (10) has ramp surfaces (11) having a plurality or sets of ramps (11) sloped for allowing upward movement of the one or more lift bodies (20, 40). The sides (22, 42) have complimentary ramp surfaces that fit onto the ramps (11) of the center body (10). The height of the device (100, 300, 600) is increased by upward movement or downward movement or both of the one or more lift bodies (20, 40) driven by the lengthwise movement of the center body (10).
    Type: Application
    Filed: April 23, 2014
    Publication date: June 25, 2015
    Applicant: AMENDIA, INC.
    Inventors: Jeffrey Scott Radcliffe, Joshua David Gunn, Hansen A. Yuan
  • Patent number: 8808327
    Abstract: A device is disclosed for securing a spinal rod to the spine which includes a head portion configured to receive a spinal rod, a locking cap configured to engage the head portion and the spinal rod upon rotation of the locking cap relative to the head portion to secure the position of the head portion relative to the spinal rod, and a fastener portion depending from the head portion and configured to engage the spine. The locking cap has discontinuous opposed engagement flanges that are received within opposed engagement slots of the head portion when the locking cap is rotated into a locked position.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: August 19, 2014
    Assignee: Howmedica Osteonics Corp.
    Inventors: Hansen Yuan, David Nichols, Eric Finley
  • Patent number: 8795382
    Abstract: Disclosed are cement products, methods of forming cement using the cement product, and methods of using the cement product in orthopedic and dental applications. Generally, the disclosed cement product includes a first component comprising a polymerizable resin comprising ethylenic unsaturated double bond, a second component comprising a compound comprising more than one type of amine selected from the group consisting of primary amines, secondary amines, tertiary amines and quaternary amines, and, optionally, the cement product includes a bioactive component to promote bone formation.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: August 5, 2014
    Assignee: Pioneer Surgical Technology, Inc.
    Inventors: Juchui Ray Lin, Edward S. Ahn, Hansen Yuan, Paul J. Mraz
  • Patent number: 8409254
    Abstract: Cephalad and caudal vertebral facet joint prostheses and methods of use are provided. The cephalad prostheses are adapted and configured to be attached to a lamina portion of a vertebra without blocking a pedicle portion of the cephalad vertebra.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: April 2, 2013
    Assignee: Gmedelaware 2 LLC
    Inventors: Hansen A. Yuan, David Stinson, Lawrence R. Jones, Mark A. Reiley
  • Patent number: 8388684
    Abstract: An artificial disc device for replacing a damaged nucleus is disclosed. In one form, the device may be inserted in components such that the device may be assembled within and retained by the natural annulus therein. In another form, the device may be inserted into the natural annulus in a collapsed or compressed state or arrangement and then be expanded within and retained by the annulus therein.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: March 5, 2013
    Assignee: Pioneer Signal Technology, Inc.
    Inventors: Qi-Bin Bao, Jeffrey L. Trudeau, Brian Patrick Janowski, Matthew N. Songer, Hansen Yuan, Thomas S. Kilpela, Gregory Berrevoets
  • Patent number: 8377133
    Abstract: A prosthetic spinal implant having a securing member for fixing the implant relative to an adjacent bone. In one form, the securing member is deployable into a portion of the vertebral space for affixing the implant between the vertebrae. The securing member may be disposed substantially within the body of a bearing member of the implant when the securing member is in an undeployed orientation. In other forms, the securing member is provided separately from the implant such that it may be inserted into the intervertebral space after the implant has been placed in an implanted orientation between the vertebrae. In such forms, the securing member is configured for ease of insertion between an outer bearing surface of the implant and an adjacent bone via linear or rotary motion.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: February 19, 2013
    Assignee: Pioneer Surgical Technology, Inc.
    Inventors: Hansen Yuan, Matthew F. Gornet, John Sullivan, Jeffrey L. Trudeau, Brian P. Janowski
  • Publication number: 20120310287
    Abstract: An artificial disc device for replacing a damaged nucleus is disclosed. In one form, the device may be inserted in components such that the device may be assembled within and retained by the natural annulus therein. In another form, the device may be inserted into the natural annulus in a collapsed or compressed state or arrangement and then be expanded within and retained by the annulus therein. In a further form, the device may be provided with a releasable connection so that the device may be connected in an insertion configuration and may be released in an operable configuration. Insertion tools and methods are also disclosed.
    Type: Application
    Filed: August 14, 2012
    Publication date: December 6, 2012
    Applicant: Pioneer Surgical Technology, Inc.
    Inventors: Qi-Bin Bao, Jeffrey L. Trudeau, Brian Patrick Janowski, Matthew N. Songer, Hansen A. Yuan, Thomas S. Kilpela, Gregory Berrevoets
  • Patent number: 8313510
    Abstract: A device is disclosed for securing a spinal rod to the spine which includes a head portion configured to receive a spinal rod, a locking cap configured to engage the head portion and the spinal rod upon rotation of the locking cap relative to the head portion to secure the position of the head portion relative to the spinal rod, and a fastener portion depending from the head portion and configured to engage the spine. The locking cap has discontinuous opposed engagement flanges that are received within opposed engagement slots of the head portion when the locking cap is rotated into a locked position.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: November 20, 2012
    Assignee: Howmedica Osteonics Corp.
    Inventors: Hansen Yuan, David Nichols, Eric Finley
  • Publication number: 20120283787
    Abstract: A pedicle screw configured to secure a rod is disclosed. In some embodiments, the pedicle screw is provided with a shaft, a yoke, a cap, a saddle and at least one separating device. The shaft has a forward end, a rear end and a longitudinal axis, the forward end being configured for insertion into a bone. The yoke is attached to the rear end of the shaft and has an interior wall nearest the shaft configured to bear against a rod inserted into the yoke. The cap is configured to engage an end of the yoke opposite the shaft. The saddle has a first side configured to mate with the cap within the yoke, and has an opposite second side configured to bear against the rod. The at least one separating device is coupled between the cap and the saddle, and is configured to urge the cap and the saddle apart from one another.
    Type: Application
    Filed: October 28, 2010
    Publication date: November 8, 2012
    Applicant: Bonovo Orthopedics, Inc.
    Inventors: Hansen A. Yuan, Peter J. Slate
  • Publication number: 20120277874
    Abstract: An implantable elastic material configured for use with bone implants is provided with a wire wound in an axially expanded coil form, with the expanded coil formed into a tight mesh. In some embodiments, the wire is formed from a titanium alloy. Methods of manufacturing the implantable material, and implantable devices comprising the material are also disclosed.
    Type: Application
    Filed: November 11, 2010
    Publication date: November 1, 2012
    Inventors: Hansen A. Yuan, Jizong Qi, Yong Song, Jianwen Sun
  • Patent number: 8241360
    Abstract: An artificial disc device for replacing a damaged nucleus is disclosed. In one form, the device may be inserted in components such that the device may be assembled within and retained by the natural annulus therein. In another form, the device may be inserted into the natural annulus in a collapsed or compressed state or arrangement and then be expanded within and retained by the annulus therein. In a further form, the device may be provided with a releasable connection so that the device may be connected in an insertion configuration and may be released in an operable configuration. Insertion tools and methods are also disclosed.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: August 14, 2012
    Assignee: Pioneer Surgical Technology, Inc.
    Inventors: Qi-Bin Bao, Jeffrey L. Trudeau, Brian Patrick Janowski, Matthew N. Songer, Hansen A. Yuan, Thomas S. Kilpela, Gregory Berrevoets