Patents by Inventor Roger Ryan Dees, Jr.
Roger Ryan Dees, Jr. 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).
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Publication number: 20200237385Abstract: Patient specific implant technology, in which an outline representation of a portion of an outer surface of a periphery of a bone volume is determined and the outline representation is used in operations related to implant matching. In addition, an instrument may be made to match a perimeter shape of a Patient Specific Knee Implant with features for locating holes in a distal femur such that posts or lugs in a femoral implant locate the femoral implant centered medial-laterally within an acceptable degree of precision to prevent overhang of either the side of the femoral implant over the perimeter of the distal femur bone resections. Further, a two-dimensional outline representation may be segmented into segments that correspond to resection cuts used in fitting an implant on a portion of a bone and operations related to implant matching may be performed based on the segments.Type: ApplicationFiled: March 23, 2020Publication date: July 30, 2020Inventors: James Bennett WIEBE, III, Ryan Lloyd LANDON, Brian William MCKINNON, Randy C. WINEBARGER, Ruxandra Cristiana MARINESCU TANASOCA, Roger Ryan DEES, JR., William L. BOWERS, JR.
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Publication number: 20200197103Abstract: Methods and systems of augmenting an implant intraoperatively and preparing a cone for revision surgical procedure are disclosed. A system includes a cutting device, a tracking and navigation system and a cutting system in operable communication with the cutting device and the tracking and navigation system. The cutting device includes a communication system, a cutting element, and a plurality of optical trackers. The tracking and navigation system is configured to detect a location of optical trackers. The control system is configured to cause the tracking and navigation system to detect the location of the cutting device, determine a revised shape for an implant cavity, cause the cutting device to cut the implant cavity to the revised shape, select a shape for a cone to be placed in the revised implant cavity, and machine the cone to the selected shape.Type: ApplicationFiled: August 30, 2018Publication date: June 25, 2020Inventors: Roger Ryan DEES, Jr., Sied W. JANNA, Daniel FARLEY, Branislav JARAMAZ
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Patent number: 10603056Abstract: Patient specific implant technology, in which an outline representation of a portion of an outer surface of a periphery of a bone volume is determined and the outline representation is used in operations related to implant matching. In addition, an instrument may be made to match a perimeter shape of a Patient Specific Knee Implant with features for locating holes in a distal femur such that posts or lugs in a femoral implant locate the femoral implant centered medial-laterally within an acceptable degree of precision to prevent overhang of either the side of the femoral implant over the perimeter of the distal femur bone resections. Further, a two-dimensional outline representation may be segmented into segments that correspond to resection cuts used in fitting an implant on a portion of a bone and operations related to implant matching may be performed based on the segments.Type: GrantFiled: September 3, 2013Date of Patent: March 31, 2020Assignee: Smith & Nephew, Inc.Inventors: James Bennett Wiebe, III, Ryan Lloyd Landon, Brian William McKinnon, Randy C. Winebarger, Ruxandra Cristiana Marinescu Tanasoca, Roger Ryan Dees, Jr., William L. Bowers, Jr.
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Publication number: 20200078181Abstract: A hinged knee prosthesis comprises a tibial component and a femoral component. The tibial component is configured to attach to a tibia. The tibial component has a bearing surface. The femoral component is configured to hingedly attach to the tibial component and rotate relative to the tibial component. The femoral component comprises a medial condyle and a lateral condyle. The medial and lateral condyles have an eccentric sagittal curvature surface configured to rotate and translate on the bearing surface of the tibial component. A method of rotating a hinged knee through a range of flexion is provided. The method fixedly attaches a femoral component to a tibial component. Axial rotation of the femoral component is induced relative to the tibial component when the hinged knee is flexed.Type: ApplicationFiled: November 15, 2019Publication date: March 12, 2020Inventors: Roger Ryan Dees, JR., Paul Charles Crabtree, JR., Jonathan Kirk Nielsen
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Publication number: 20200060769Abstract: A system (100) and device (300) for mounting and tracking a tracker array during a surgical procedure are described. For example, the system includes a surgical navigation system (700) including a position tracking system (702) configured to track one or more tracker arrays, and a device (300) for mounting a tracker array (306) onto a patient during the surgical procedure. The device includes an intramedullary (IM) canal component (304) configured to be inserted into an IM canal (310) within a bone (312). The device further includes a tracker pin (308) configured to penetrate at least a portion of the bone and engage an inserted end (411, 413) of the IM canal component, and a tracker array (306) affixed to the tracker pin. The IM canal component is configured to engage the IM canal of the bone to stabilize the tracker array during the surgical procedure.Type: ApplicationFiled: February 27, 2018Publication date: February 27, 2020Inventors: Roger Ryan DEES, Jr., Branislav JARAMAZ, Scott Kennedy LASTER
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Patent number: 10010422Abstract: Embodiments of the present application relate generally to provisional orthopedic components, and more specifically relate to a trial system including a cam module and a trial femoral component that can be used during joint replacement surgery. The systems and methods of the present application aid a surgeon in the preparation of a patient's bone to receive a permanent implant by providing a system that can be used to guide preparatory box cuts, and that can then be completed with a cam module without removal from the patient's bone so that the same component can be used for the trialing process.Type: GrantFiled: August 20, 2015Date of Patent: July 3, 2018Assignee: Smith & Nephew, Inc.Inventor: Roger Ryan Dees, Jr.
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Publication number: 20180008421Abstract: A hinged knee prosthesis comprises a tibial component and a femoral component. The tibial component is configured to attach to a tibia. The tibial component has a bearing surface. The femoral component is configured to hingedly attach to the tibial component and rotate relative to the tibial component. The femoral component comprises a medial condyle and a lateral condyle. The medial and lateral condyles have an eccentric sagittal curvature surface configured to rotate and translate on the bearing surface of the tibial component. A method of rotating a hinged knee through a range of flexion is provided. The method fixedly attaches a femoral component to a tibial component. Axial rotation of the femoral component is induced relative to the tibial component when the hinged knee is flexed.Type: ApplicationFiled: August 14, 2017Publication date: January 11, 2018Applicant: Smith & Nephew, Inc.Inventors: Roger Ryan Dees, Jr., Paul Charles Crabtree, JR., Jonathan Kirk Nielsen
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Patent number: 9808348Abstract: Implants, and processes for installing them, which replace the medial condyle and portions of the patellofemoral channel but preferably not portions of the lateral condyle that articulate relative to the tibia. Processes are provided which allow proper location and orientation of an anterior resection and a distal resection on the femur, which make use of a transition point which can be designated on the bone, for navigating proper positioning of such implants. Proper positioning of the implant relative to the femur for insuring a smooth transition between lateral portions of the implant and the lateral condyle is thus reduced to determining proper medial/lateral location of the implant on the anterior and distal resections.Type: GrantFiled: November 11, 2010Date of Patent: November 7, 2017Assignee: Smith & Nephew, Inc.Inventors: Roger Ryan Dees, Jr., Jason Jordan
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Patent number: 9730799Abstract: A hinged knee prosthesis comprises a tibial component and a femoral component. The tibial component is configured to attach to a tibia. The tibial component has a bearing surface. The femoral component is configured to hingedly attach to the tibial component and rotate relative to the tibial component. The femoral component comprises a medial condyle and a lateral condyle. The medial and lateral condyles have an eccentric sagittal curvature surface configured to rotate and translate on the bearing surface of the tibial component. A method of rotating a hinged knee through a range of flexion is provided. The method fixedly attaches a femoral component to a tibial component. Axial rotation of the femoral component is induced relative to the tibial component when the hinged knee is flexed.Type: GrantFiled: August 12, 2013Date of Patent: August 15, 2017Assignee: Smith & Nephew, Inc.Inventors: Roger Ryan Dees, Jr., Paul Charles Crabtree, Jr., Jonathan Kirk Nielsen
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Patent number: 9668872Abstract: Orthopedic assemblies including a tibial component and one of a fixed tibial insert or a rotatable tibial insert. The assemblies may include structure to prevent undesired movement between the tibial component and insert. For example, a retaining tab may be provided on the tibial component that couples to a tab opening on a surface of the tibial insert (either the fixed or rotatable insert). When assembled, the retaining tab may be covered to avoid possible irritation to the patient's surrounding anatomy. The fixed tibial insert may be provided with a tab opening that provides a minimal amount clearance with the retaining tab to help prevent rotation of the fixed tibial insert. The rotatable tibial insert may be provided with a tab opening with more clearance with the retaining tab to allow at least some rotation with the tibial component.Type: GrantFiled: September 22, 2014Date of Patent: June 6, 2017Assignee: Smith & Nephew, Inc.Inventors: Roger Ryan Dees, Jr., Paul Charles Crabtree, Jr.
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Patent number: 9649205Abstract: Various embodiments of the present invention provide a distal femoral trial that allows a surgeon to cut the central box geometry of a distal femur using an implant-shaped trial. The trial includes a cutting guide that is removable from the trial and adjustable with respect to the trial. The guide is intended to control the depth and direction of the cutting instruments used to prepare the femur for a posterior stabilized implant.Type: GrantFiled: May 29, 2015Date of Patent: May 16, 2017Assignee: Smith & Nephew, Inc.Inventor: Roger Ryan Dees, Jr.
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Publication number: 20150257900Abstract: Various embodiments of the present invention provide a distal femoral trial that allows a surgeon to cut the central box geometry of a distal femur using an implant-shaped trial. The trial includes a cutting guide that is removable from the trial and adjustable with respect to the trial. The guide is intended to control the depth and direction of the cutting instruments used to prepare the femur for a posterior stabilized implant.Type: ApplicationFiled: May 29, 2015Publication date: September 17, 2015Applicant: Smith & Nephew, Inc.Inventor: Roger Ryan Dees, JR.
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Publication number: 20150223900Abstract: Patient specific implant technology, in which an outline representation of a portion of an outer surface of a periphery of a bone volume is determined and the outline representation is used in operations related to implant matching. In addition, an instrument may be made to match a perimeter shape of a Patient Specific Knee Implant with features for locating holes in a distal femur such that posts or lugs in a femoral implant locate the femoral implant centered medial-laterally within an acceptable degree of precision to prevent overhang of either the side of the femoral implant over the perimeter of the distal femur bone resections. Further, a two-dimensional outline representation may be segmented into segments that correspond to resection cuts used in fitting an implant on a portion of a bone and operations related to implant matching may be performed based on the segments.Type: ApplicationFiled: September 3, 2013Publication date: August 13, 2015Inventors: James Bennett Wiebe, III, Ryan Lloyd Landon, Brian William McKinnon, Randy C. Winebarger, Ruxandra Cristiana Marinescu Tanasoca, Roger Ryan Dees, Jr., William L. Bowers, Jr.
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Patent number: 9089343Abstract: A locking instrument assembly for use in conjunction with an intramedullary device is disclosed. The locking instrument assembly includes an inner collet, an outer body, and a knob. The inner collet has a collar and a fastener member. The knob engages the fastener member to press the outer body against the collar. As the knob mates with the fastener member, the collar applies a clamping force to the intramedullary device.Type: GrantFiled: September 14, 2012Date of Patent: July 28, 2015Assignee: Smith & Nephew, Inc.Inventors: Roger Ryan Dees, Jr., Jeffrey N. Yeager
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Patent number: 9044249Abstract: Various embodiments of the present invention provide a distal femoral trial that allows a surgeon to cut the central box geometry of a distal femur using an implant-shaped trial. The trial includes a cutting guide that is removable from the trial and adjustable with respect to the trial. The guide is intended to control the depth and direction of the cutting instruments used to prepare the femur for a posterior stabilized implant.Type: GrantFiled: June 27, 2014Date of Patent: June 2, 2015Assignee: Smith & Nephew, Inc.Inventor: Roger Ryan Dees, Jr.
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Publication number: 20150012106Abstract: Orthopaedic assemblies including a tibial component and one of a fixed tibial insert or a rotatable tibial insert. The assemblies may include structure to prevent undesired movement between the tibial component and insert. For example, a retaining tab may be provided on the tibial component that couples to a tab opening on a surface of the tibial insert (either the fixed or rotatable insert). When assembled, the retaining tab may be covered to avoid possible irritation to the patient's surrounding anatomy. The fixed tibial insert may be provided with a tab opening that provides a minimal amount clearance with the retaining tab to help prevent rotation of the fixed tibial insert. The rotatable tibial insert may be provided with a tab opening with more clearance with the retaining tab to allow at least some rotation with the tibial component.Type: ApplicationFiled: September 22, 2014Publication date: January 8, 2015Applicant: Smith & Nephew, Inc.Inventors: Roger Ryan Dees, JR., Paul Charles Crabtree, Jr.
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Publication number: 20140309645Abstract: Various embodiments of the present invention provide a distal femoral trial that allows a surgeon to cut the central box geometry of a distal femur using an implant-shaped trial. The trial includes a cutting guide that is removable from the trial and adjustable with respect to the trial. The guide is intended to control the depth and direction of the cutting instruments used to prepare the femur for a posterior stabilized implant.Type: ApplicationFiled: June 27, 2014Publication date: October 16, 2014Applicant: SMITH & NEPHEW, INC.Inventor: Roger Ryan Dees, JR.
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Patent number: 8845745Abstract: Orthopaedic assemblies including a tibial component and one of a fixed tibial insert or a rotatable tibial insert. The assemblies may include structure to prevent undesired movement between the tibial component and insert. For example, a retaining tab may be provided on the tibial component that couples to a tab opening on a surface of the tibial insert (either the fixed or rotatable insert). When assembled, the retaining tab may be covered to avoid possible irritation to the patient's surrounding anatomy. The fixed tibial insert may be provided with a tab opening that provides a minimal amount clearance with the retaining tab to help prevent rotation of the fixed tibial insert. The rotatable tibial insert may be provided with a tab opening with more clearance with the retaining tab to allow at least some rotation with the tibial component.Type: GrantFiled: June 1, 2011Date of Patent: September 30, 2014Assignee: Smith & Nephew, Inc.Inventors: Roger Ryan Dees, Jr., Paul Charles Crabtree, Jr.
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Patent number: 8834473Abstract: Disclosed are lockable instrument assemblies for quick and easy configuration of surgical instrumentation. The assemblies are operable between a locked and unlocked position, and generally include an aperture having a shaped profile which receives an adjustment member therein. When the assemblies are placed in a locked assembly configuration, the adjustment member is prevented from rotating or translating within the aperture. When the assemblies are placed in an unlocked assembly configuration, the adjustment member is permitted to rotate or translate within the aperture. Also disclosed are methods of using and making lockable instrument assemblies.Type: GrantFiled: March 22, 2010Date of Patent: September 16, 2014Assignee: Smith & Nephew, Inc.Inventors: Roger Ryan Dees, Jr., Jeffrey Andrew Sharp
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Patent number: 8764759Abstract: Various embodiment of the present invention provide a distal femoral trial that allows a surgeon to cut the central box geometry of a distal femur using an implant-shaped trial. The trial includes a cutting guide that is removable from the trial and adjustable with respect to the trial. The guide is intended to control the depth and direction of the cutting instruments used to prepare the femur for the a posterior stabilized implant.Type: GrantFiled: May 5, 2011Date of Patent: July 1, 2014Assignee: Smith & Nephew, Inc.Inventor: Roger Ryan Dees, Jr.