Patents by Inventor Andrew Amis

Andrew Amis 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: 10624755
    Abstract: A prosthetic glenoid component (10) comprising a concave external bearing surface (12), a glenoid-contacting surface (14) opposite to the bearing surface, and a plurality of fixation elements (16) protruding from said glenoid-contacting surface (14) oppositely to said bearing surface (12) for location into a peripheral portion (104b) of a glenoid cavity (104) to secure the component to the scapula (102), wherein a central portion (15) of the glenoid-contacting surface (14) is free of fixation elements so as to preserve the integrity of the glenoid vault.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: April 21, 2020
    Assignee: Imperial Innovations Limited
    Inventors: Andrew Amis, Diogo Geraldes, Roger John Hart Emery, Ulrich N. Hansen
  • Patent number: 10492804
    Abstract: Apparatus for locating an attachment position for a reconstructed anterior cruciate ligament on an attachment surface of a bone comprises locating means 51, 61 arranged to locate at least one reference surface 4 of the bone and guide means 53, 54 arranged to define the attachment position in two dimensions on the attachment surface relative to the reference surface.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: December 3, 2019
    Assignee: Smith & Nephew, Inc.
    Inventors: Andrew Amis, Andrew Edwards
  • Publication number: 20180338768
    Abstract: Apparatus for locating an attachment position for a reconstructed anterior cruciate ligament on an attachment surface of a bone comprises locating means 51, 61 arranged to locate at least one reference surface 4 of the bone and guide means 53, 54 arranged to define the attachment position in two dimensions on the attachment surface relative to the reference surface.
    Type: Application
    Filed: April 26, 2018
    Publication date: November 29, 2018
    Inventors: Andrew Amis, Andrew Edwards
  • Publication number: 20180235642
    Abstract: A surgical tool guide (100) for minimally invasive preparation of a bony surface to receive an implant comprises at least one contact surface (104, 120) for securely registering the surgical tool guide (100) on a bone (200), and a mechanical guide means (102) configured to restrict movement of a surgical tool (110) received therein such that a working tip (111) of the surgical tool (110), in use, is guided over a predefined area of the bone (200), typically at a pre-planned depth.
    Type: Application
    Filed: August 12, 2016
    Publication date: August 23, 2018
    Inventors: Andrew Amis, Jianmo Li
  • Patent number: 9980739
    Abstract: Apparatus for locating an attachment position for a reconstructed anterior cruciate ligament on an attachment surface of a bone comprises locating means 51, 61 arranged to locate at least one reference surface 4 of the bone and guide means 53, 54 arranged to define the attachment position in two dimensions on the attachment surface relative to the reference surface.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: May 29, 2018
    Assignee: Imperial Innovations Ltd.
    Inventors: Andrew Amis, Andrew Edwards
  • Publication number: 20180104065
    Abstract: A prosthetic glenoid component (10) comprising a concave external bearing surface (12), a glenoid-contacting surface (14) opposite to the bearing surface, and a plurality of fixation elements (16) protruding from said glenoid-contacting surface (14) oppositely to said bearing surface (12) for location into a peripheral portion (104b) of a glenoid cavity (104) to secure the component to the scapula (102), wherein a central portion (15) of the glenoid-contacting surface (14) is free of fixation elements so as to preserve the integrity of the glenoid vault.
    Type: Application
    Filed: March 23, 2016
    Publication date: April 19, 2018
    Inventors: Andrew Amis, Diogo Geraldes, Hamidreza Alidousti
  • Publication number: 20180049758
    Abstract: A patient-specific surgical guide (10) for use in a minimally invasive procedure in a joint can include: a first contoured surface (60); and a second contoured surface (80). The first and second contoured surfaces (60, 80) are configured for engagement with respective opposing articular bone surfaces in said joint such that the guide is located in a pre-operatively determined position and orientation within the joint relative to both bones (12, 14). The provision of the two contoured surfaces for opposing bone surfaces means that the guide (10) can be securely located and retained within the joint by virtue of passive joint stiffness provided by soft tissue tension from the tissues in and surrounding the joint which is relatively unaffected by the minimally-invasive incision(s).
    Type: Application
    Filed: March 10, 2016
    Publication date: February 22, 2018
    Inventors: Andrew Amis, Ferdinando Rodriguez Y Baena, Joshua Giles
  • Publication number: 20180000598
    Abstract: A stem (100) for use in a joint prosthesis, such as a femoral stem for a hip joint prosthesis, the stem comprising: a solid central core (102); a proximal outer layer (127) disposed over a proximal portion (101a) of the central core, wherein the proximal outer layer comprises a set of longitudinal ribs (120), defining slots (130) there between; and a distal outer layer made of a deformable porous material disposed over a distal portion (101b) of the central core. The arrangement is such that the stem (100) can be made with a relatively large diameter yet without being excessively stiff, for cementless fixation in osteoporotic patients. The deformability of the distal outer layer also mitigates against the risk of intraoperative bone fractures.
    Type: Application
    Filed: January 13, 2016
    Publication date: January 4, 2018
    Inventors: Andrew Amis, Bidyut Pal
  • Publication number: 20170340457
    Abstract: Apparatus for locating an attachment position for a reconstructed anterior cruciate ligament on an attachment surface of a bone comprises locating means 51, 61 arranged to locate at least one reference surface 4 of the bone and guide means 53, 54 arranged to define the attachment position in two dimensions on the attachment surface relative to the reference surface.
    Type: Application
    Filed: August 17, 2017
    Publication date: November 30, 2017
    Inventors: Andrew Amis, Andrew Edwards
  • Publication number: 20170281366
    Abstract: Apparatus for locating an attachment position for a reconstructed anterior cruciate ligament on an attachment surface of a bone comprises locating means 51, 61 arranged to locate at least one reference surface 4 of the bone and guide means 53, 54 arranged to define the attachment position in two dimensions on the attachment surface relative to the reference surface.
    Type: Application
    Filed: May 3, 2016
    Publication date: October 5, 2017
    Inventors: Andrew Amis, Andrew Edwards
  • Patent number: 9770344
    Abstract: Apparatus for locating an attachment position for a reconstructed anterior cruciate ligament on an attachment surface of a bone comprises locating means 51, 61 arranged to locate at least one reference surface 4 of the bone and guide means 53, 54 arranged to define the attachment position in two dimensions on the attachment surface relative to the reference surface.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: September 26, 2017
    Assignee: Imperial Innovations Ltd.
    Inventors: Andrew Amis, Andrew Edwards
  • Publication number: 20170049581
    Abstract: Apparatus for locating an attachment position for a reconstructed anterior cruciate ligament on an attachment surface of a bone comprises locating means 51, 61 arranged to locate at least one reference surface 4 of the bone and guide means 53, 54 arranged to define the attachment position in two dimensions on the attachment surface relative to the reference surface.
    Type: Application
    Filed: May 3, 2016
    Publication date: February 23, 2017
    Inventors: Andrew Amis, Andrew Edwards
  • Publication number: 20160242935
    Abstract: Apparatus for locating an attachment position for a reconstructed anterior cruciate ligament on an attachment surface of a bone comprises locating means 51, 61 arranged to locate at least one reference surface 4 of the bone and guide means 53, 54 arranged to define the attachment position in two dimensions on the attachment surface relative to the reference surface.
    Type: Application
    Filed: May 3, 2016
    Publication date: August 25, 2016
    Inventors: Andrew Amis, Andrew Edwards
  • Patent number: 9364244
    Abstract: Apparatus for locating an attachment position for a reconstructed anterior cruciate ligament on an attachment surface of a bone comprises locating means 51, 61 arranged to locate at least one reference surface 4 of the bone and guide means 53, 54 arranged to define the attachment position in two dimensions on the attachment surface relative to the reference surface.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: June 14, 2016
    Assignee: Imperial Innovations Ltd.
    Inventors: Andrew Amis, Andrew Edwards
  • Publication number: 20150374390
    Abstract: Apparatus for locating an attachment position for a reconstructed anterior cruciate ligament on an attachment surface of a bone comprises locating means 51, 61 arranged to locate at least one reference surface 4 of the bone and guide means 53, 54 arranged to define the attachment position in two dimensions on the attachment surface relative to the reference surface.
    Type: Application
    Filed: September 10, 2015
    Publication date: December 31, 2015
    Inventors: Andrew Amis, Andrew Edwards
  • Publication number: 20130253524
    Abstract: Apparatus for locating an attachment position for a reconstructed anterior cruciate ligament on an attachment surface of a bone comprises locating means 51, 61 arranged to locate at least one reference surface 4 of the bone and guide means 53, 54 arranged to define the attachment position in two dimensions on the attachment surface relative to the reference surface.
    Type: Application
    Filed: May 20, 2013
    Publication date: September 26, 2013
    Applicant: Imperial Innovations Ltd.
    Inventors: Andrew Amis, Andrew Edwards
  • Patent number: 8444652
    Abstract: Apparatus for locating an attachment position for a reconstructed anterior cruciate ligament on an attachment surface of a bone comprises locating means (51, 61) arranged to locate at least one reference surface (4) of the bone and guide means (53, 54) arranged to define the attachment position in two dimensions on the attachment surface relative to the reference surface.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: May 21, 2013
    Assignee: Imperial Innovations Ltd.
    Inventors: Andrew Amis, Andrew Edwards
  • Publication number: 20110112640
    Abstract: A graft fixation device for fixing a ligament graft to a bone, the device comprising locating means for locating the device in the bone and graft support means arranged to support the graft, wherein the graft support means is adjustable to provide adjustment of the position of the graft relative to the bone.
    Type: Application
    Filed: January 28, 2009
    Publication date: May 12, 2011
    Applicant: IMPERIAL INNOVATIONS LTD
    Inventors: Andrew Amis, Thomas Boerger
  • Publication number: 20090171355
    Abstract: Apparatus for locating an attachment position for a reconstructed anterior cruciate ligament on an attachment surface of a bone comprises locating means (51, 61) arranged to locate at least one reference surface (4) of the bone and guide means (53, 54) arranged to define the attachment position in two dimensions on the attachment surface relative to the reference surface.
    Type: Application
    Filed: March 5, 2007
    Publication date: July 2, 2009
    Applicant: Imperial Innovations Ltd
    Inventors: Andrew Amis, Andrew Edwards
  • Patent number: 5575819
    Abstract: An artificial ligament for connecting across a skeletal joint comprises a bundle of fibers 1 each comprising a plurality of filaments 1a of polyethylene terephthalate. The ligament is constructed by winding a plurality of turns of the fiber 1 onto a winding apparatus and then binding the ends to form loops 4.Also disclosed is a ligament fixation device in the form of a cylindrical grommet, and a tensioning instrument for use in implanting an artificial ligament.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: November 19, 1996
    Assignee: Imperial College of Science and Technology
    Inventor: Andrew Amis