Patents by Inventor Ryan C. Keefer

Ryan C. Keefer 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: 20160128839
    Abstract: An orthopaedic prosthesis for use in a hip replacement surgery includes an implantable stem component. The implantable stem component includes a core and a shell extending over the core. The shell includes a polymeric material and is configured to receive a femoral head component. Metal foam may extend over a portion of the shell.
    Type: Application
    Filed: January 14, 2016
    Publication date: May 12, 2016
    Inventors: John M. Armacost, Ryan C. Keefer, Jeffrey A. McAnelly
  • Patent number: 9271839
    Abstract: An orthopaedic prosthesis for use in a hip replacement surgery includes an implantable stem component. The implantable stem component includes a core and a shell extending over the core. The shell includes a polymeric material and is configured to receive a femoral head component. Metal foam may extend over a portion of the shell.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 1, 2016
    Assignee: DEPUY SYNTHES PRODUCTS, INC.
    Inventors: John M. Armacost, Ryan C. Keefer, Jeffrey A. McAnelly
  • Publication number: 20160000569
    Abstract: An orthopaedic prosthesis for use in a hip replacement surgery. The orthopaedic prosthesis includes a metallic foam shell and a metallic core. The metallic core includes a neck configured to receive a femoral head component and a stem extending through the metallic foam shell.
    Type: Application
    Filed: September 15, 2015
    Publication date: January 7, 2016
    Inventors: John M. Armacost, Ryan C. Keefer, Jeffrey A. McAnelly
  • Publication number: 20150359546
    Abstract: A method of surgically preparing a proximal end of a tibia includes inserting an intramedullary orthopaedic surgical instrument into a medullary canal of the tibia, securing an attachment device to the intramedullary orthopaedic surgical instrument, attaching a cutting block to the attachment device, resecting the proximal end of the tibia using the cutting block to form a surgically-prepared surface, positioning a tibial base trial on the surgically-prepared surface, and inserting a keel punch through a slot defined in the tibial base trial and into the surgically-prepared surface of the tibia.
    Type: Application
    Filed: August 24, 2015
    Publication date: December 17, 2015
    Inventors: Kyle B. Thomas, Todd A. Kilpela, Steven P. Gowers, Ryan C. Keefer, William R. Macumber, Jonathan C. Lee, Lisa M. Major
  • Patent number: 9132013
    Abstract: An orthopaedic prosthesis for use in a hip replacement surgery. The orthopaedic prosthesis includes a metallic foam shell and a metallic core. The metallic core includes a neck configured to receive a femoral head component and a stem extending through the metallic foam shell.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: September 15, 2015
    Assignee: DEPUY SYNTHES PRODUCTS, INC.
    Inventors: John M. Armacost, Ryan C. Keefer, Jeffrey A. McAnelly
  • Patent number: 9113915
    Abstract: A method of surgically preparing a proximal end of a tibia includes inserting an intramedullary orthopaedic surgical instrument into a medullary canal of the tibia, securing an attachment device to the intramedullary orthopaedic surgical instrument, attaching a cutting block to the attachment device, resecting the proximal end of the tibia using the cutting block to form a surgically-prepared surface, positioning a tibial base trial on the surgically-prepared surface, and inserting a keel punch through a slot defined in the tibial base trial and into the surgically-prepared surface of the tibia.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: August 25, 2015
    Assignee: DEPUY (IRELAND)
    Inventors: Kyle B. Thomas, Todd Kilpela, Steven P. Gowers, Ryan C. Keefer, William R. Macumber, Jonathan C. Lee, Lisa M. Major
  • Patent number: 9107757
    Abstract: An orthopaedic surgical instrument assembly is disclosed. The assembly includes a tibial base trial adapted to be positioned on a surgically-prepared proximal end of a patient's tibia, a base fastener, and a stem adaptor secured to the base fastener. The stem adaptor includes a first adaptor body engaged with a lower surface of the tibial base trial and a second adaptor body pivotally coupled to the first adaptor body. A stem trial is removably coupled to the second adaptor body of the stem adaptor.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: August 18, 2015
    Assignee: DEPUY (IRELAND)
    Inventors: Lisa M. Major, Ryan C. Keefer, Todd A. Kilpela
  • Patent number: 9095356
    Abstract: An orthopaedic surgical instrument assembly includes a tibial base trial adapted to be positioned on a surgically-prepared proximal end of a patient's tibia, an intramedullary orthopaedic surgical instrument engaged with a lower surface of the tibial base trial, and a fastener configured to pivot relative to the tibial base trial. The fastener is configured to engage with the intramedullary orthopaedic surgical instrument to removably couple the intramedullary orthopaedic surgical instrument to the tibial base trial.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: August 4, 2015
    Assignee: DEPUY (IRELAND)
    Inventors: Kyle B. Thomas, Todd Kilpela, Ryan C. Keefer, Lisa M. Major
  • Publication number: 20150196307
    Abstract: A customized patient-specific orthopaedic instrument for facilitating implantation of an acetabular cup prosthesis in a coxal bone of a patient and method of use is disclosed. The customized patient-specific orthopaedic instrument includes a customized patient-specific acetabular reaming guide. The customized patient-specific acetabular reaming guide includes a longitudinal passageway for an acetabular reamer and a plurality of arms with attached feet. Each foot of the reaming guide is positioned relative to the body based on the contours of the coxal bone of the patient and a predetermined degree of version and inclination angles of the acetabular cup prosthesis when implanted in the patient's coxal bone.
    Type: Application
    Filed: March 25, 2015
    Publication date: July 16, 2015
    Inventor: Ryan C. Keefer
  • Patent number: 9028501
    Abstract: An orthopaedic surgical instrument assembly includes an attachment device, an intramedullary orthopaedic surgical instrument, and a cutting block. The attachment device includes a housing, a rail extending outwardly from the housing, and a mounting frame positioned on the rail that is configured to slide relative to the housing along the rail. The intramedullary orthopaedic surgical instrument is removably coupled to the housing, and the cutting block is removably coupled to the mounting frame.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: May 12, 2015
    Assignee: DePuy (Ireland)
    Inventors: Kyle B. Thomas, Todd Kilpela, Steven P. Gowers, Ryan C. Keefer, William R. Macumber, Jonathan C. Lee, Lisa M. Major
  • Publication number: 20150127008
    Abstract: Reciprocating rasps for the surgical preparation of the bone prior to the implantation of a glenoid or acetabular component with complex geometry are disclosed. Surgical methods for the use of such reciprocating rasps are also disclosed.
    Type: Application
    Filed: January 12, 2015
    Publication date: May 7, 2015
    Inventors: Ryan C. Keefer, Sarah M. Anthony, Conrad L. Klotz, Kyle E. Lappin, Van A. Flamion, James A. Caywood, Francisco A. Amaral, Michael J. Fortin, Gabriel M. Surma, Joanna L. Surma
  • Publication number: 20150069111
    Abstract: An orthopaedic prosthesis for use in a hip replacement surgery. The orthopaedic prosthesis includes a metallic foam shell and a metallic core. The metallic core includes a neck configured to receive a femoral head component and a stem extending through the metallic foam shell.
    Type: Application
    Filed: November 20, 2014
    Publication date: March 12, 2015
    Inventors: John M. Armacost, Ryan C. Keefer, Jeffrey A. McAnelly
  • Patent number: 8968414
    Abstract: A liner adapted for insertion into an acetabular shell for use in hip arthroplasty. The liner includes a concave inner surface adapted to engage a femoral head. The liner also includes an outer surface adapted to engage the acetabular shell and a rim that extends between the inner surface and the outer surface. The outer surface includes a locking section extending from the rim, a composite-curved section extending from the locking section at a first transition point, and a dome section extending from the composite-curved section, wherein at the first transition point, the composite-curved section is tangential to the locking section.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: March 3, 2015
    Assignee: Depuy Synthes Products, LLC
    Inventors: John M. Armacost, James A. Caywood, Ryan C. Keefer
  • Patent number: 8961521
    Abstract: Reciprocating rasps for the surgical preparation of the bone prior to the implantation of a glenoid or acetabular component with complex geometry are disclosed. Surgical methods for the use of such reciprocating rasps are also disclosed.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: February 24, 2015
    Assignee: DePuy Synthes Products, LLC
    Inventors: Ryan C. Keefer, Sarah M Anthony, Conrad L. Klotz, Kyle E. Lappin, Van A. Flamion, James A. Caywood, Francisco A. Amaral, Michael J. Fortin, Gabriel M. Surma, Joanna L. Surma
  • Patent number: 8906108
    Abstract: An orthopaedic prosthesis for use in a hip replacement surgery. The orthopaedic prosthesis includes a metallic foam shell and a metallic core. The metallic core includes a neck configured to receive a femoral head component and a stem extending through the metallic foam shell.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: December 9, 2014
    Assignee: DePuy Synthes Products, LLC
    Inventors: John M. Armacost, Ryan C. Keefer, Jeffrey A. McAnelly
  • Publication number: 20140277557
    Abstract: An orthopaedic prosthesis for use in a hip replacement surgery includes an implantable stem component. The implantable stem component includes a core and a shell extending over the core. The shell includes a polymeric material and is configured to receive a femoral head component. Metal foam may extend over a portion of the shell.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: John M. Armacost, Ryan C. Keefer, Jeffrey A. McAnelly
  • Publication number: 20140277546
    Abstract: An orthopaedic surgical instrument assembly is disclosed. The assembly includes a tibial base trial adapted to be positioned on a surgically-prepared proximal end of a patient's tibia, a base fastener, and a stem adaptor secured to the base fastener. The stem adaptor includes a first adaptor body engaged with a lower surface of the tibial base trial and a second adaptor body pivotally coupled to the first adaptor body. A stem trial is removably coupled to the second adaptor body of the stem adaptor.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Inventors: Lisa M. Major, Ryan C. Keefer
  • Publication number: 20140214171
    Abstract: A liner adapted for insertion into an acetabular shell for use in hip arthroplasty. The liner includes a concave inner surface adapted to engage a femoral head. The liner also includes an outer surface adapted to engage the acetabular shell and a rim that extends between the inner surface and the outer surface. The outer surface includes a locking section extending from the rim, a composite-curved section extending from the locking section at a first transition point, and a dome section extending from the composite-curved section, wherein at the first transition point, the composite-curved section is tangential to the locking section.
    Type: Application
    Filed: April 2, 2014
    Publication date: July 31, 2014
    Inventors: JOHN M. ARMACOST, JAMES A. CAYWOOD, RYAN C. KEEFER
  • Patent number: D741487
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: October 20, 2015
    Assignee: DEPUY (IRELAND)
    Inventors: Shawn Langford, Ryan C. Keefer, Todd A. Kilpela, Jonathan C. Lee, Darren R. Bailey, William R. Macumber, Lisa M. Major
  • Patent number: D748786
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: February 2, 2016
    Assignee: DEPUY (IRELAND)
    Inventors: Darren R. Bailey, Ryan C. Keefer, Todd A. Kilpela, William R. Macumber, Steven P. Gowers, Jonathan C. Lee, Lisa M. Major