Patents by Inventor Jeffrey A. Rybolt
Jeffrey A. Rybolt 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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Patent number: 11938033Abstract: A method for manufacturing a prosthetic component include injection molding a prosthetic component with a polymeric material. The prosthetic component includes a final surface positioned on one side and multiple coring features positioned on an opposite side. The coring features may include multiple ribs and slots. The method further includes machining the prosthetic component to remove the coring features and form a final surface on the opposite side. The prosthetic component may be a femoral component for a prosthetic knee joint.Type: GrantFiled: June 30, 2020Date of Patent: March 26, 2024Assignee: DEPUY SYNTHES PRODUCTS, INC.Inventors: Rajendra K. Kasinath, Jeffrey A. Rybolt, David A. B. Smith
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Publication number: 20220151787Abstract: A joint prosthesis system is suitable for cementless fixation. The system includes a metal implant component that has a mounting surface for supporting an insert. The metal implant component includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment.Type: ApplicationFiled: November 23, 2021Publication date: May 19, 2022Inventors: STEPHANIE M. WAINSCOTT, DAREN L. DEFFENBAUGH, HENGDA D. LIU, ANDREW J. MARTIN, JEFFREY A. RYBOLT, BRYAN J. SMITH, ANTHONY D. ZANNIS
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Patent number: 11213397Abstract: A joint prosthesis system is suitable for cementless fixation. The system includes a metal implant component that has a mounting surface for supporting an insert. The metal implant component includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment.Type: GrantFiled: August 7, 2019Date of Patent: January 4, 2022Assignee: DEPUY IRELAND UNLIMITED COMPANYInventors: Stephanie M. Wainscott, Daren L. Deffenbaugh, Hengda D. Liu, Andrew J. Martin, Jeffrey A. Rybolt, Bryan J. Smith, Anthony D. Zannis
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Publication number: 20210401583Abstract: A method for manufacturing a prosthetic component include injection molding a prosthetic component with a polymeric material. The prosthetic component includes a final surface positioned on one side and multiple coring features positioned on an opposite side. The coring features may include multiple ribs and slots. The method further includes machining the prosthetic component to remove the coring features and form a final surface on the opposite side. The prosthetic component may be a femoral component for a prosthetic knee joint.Type: ApplicationFiled: June 30, 2020Publication date: December 30, 2021Inventors: Rajendra K. Kasinath, Jeffrey A. Rybolt, David A.B. Smith
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Publication number: 20190358041Abstract: A joint prosthesis system is suitable for cementless fixation. The system includes a metal implant component that has a mounting surface for supporting an insert. The metal implant component includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment.Type: ApplicationFiled: August 7, 2019Publication date: November 28, 2019Inventors: STEPHANIE M. WAINSCOTT, DAREN L. DEFFENBAUGH, HENGDA D. LIU, ANDREW J. MARTIN, JEFFREY A. RYBOLT, BRYAN J. SMITH, ANTHONY D. ZANNIS
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Patent number: 10433964Abstract: A joint prosthesis system is suitable for cementless fixation. The system has two metal implant components and a bearing. One of the metal implant components has an articulation surface for articulation with the bearing. The other metal implant component has a mounting surface for supporting the bearing. One of the metal implant components includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment.Type: GrantFiled: May 8, 2017Date of Patent: October 8, 2019Assignee: DEPUY IRELAND UNLIMITED COMPANYInventors: Stephanie M Wainscott, Daren L Deffenbaugh, Hengda D Liu, Andrew J Martin, Jeffrey A Rybolt, Bryan J Smith, Anthony D Zannis
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Publication number: 20170239052Abstract: A joint prosthesis system is suitable for cementless fixation. The system has two metal implant components and a bearing. One of the metal implant components has an articulation surface for articulation with the bearing. The other metal implant component has a mounting surface for supporting the bearing. One of the metal implant components includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment.Type: ApplicationFiled: May 8, 2017Publication date: August 24, 2017Inventors: STEPHANIE M. WAINSCOTT, DAREN L. DEFFENBAUGH, HENGDA D. LIU, ANDREW J. MARTIN, JEFFREY A. RYBOLT, BRYAN J. SMITH, ANTHONY D. ZANNIS
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Patent number: 9393118Abstract: Provided are methods for processing a green body that includes compacted metal powder, comprising impacting the green body with a particulate material for a time and under conditions effective to displace a portion of the metal powder from the green body. The present methods can be used to prepare green bodies that have “roughened” surfaces and that can be used to make orthopedic implants displaying low movement relative to bone when installed in situ, which corresponds to higher stability upon implantation and decreases the time required for biological fixation of the implant. Also provided are implants comprising a metallic matrix, and methods comprising surgically installing an implant prepared from a “surface roughened” green body in accordance with the present invention.Type: GrantFiled: September 17, 2014Date of Patent: July 19, 2016Assignee: DEPUY SYNTHES PRODUCTS, INC.Inventors: Bryan J. Smith, Jeffrey A. Rybolt, Hengda D. Liu, Andrew J. Martin
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Patent number: 9237953Abstract: An orthopaedic prosthesis for cementless fixation has a solid metal base and porous metal pegs extending out from the base. The pegs are mechanically, rather than metallurgically, fixed to the base. A process for making such a prosthesis is also disclosed.Type: GrantFiled: February 21, 2014Date of Patent: January 19, 2016Assignee: DEPUY (IRELAND)Inventors: Jeffrey A Rybolt, Bryan J Smith
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Publication number: 20150313715Abstract: A joint prosthesis system is suitable for cementless fixation. The system has two metal implant components and a bearing. One of the metal implant components has an articulation surface for articulation with the bearing. The other metal implant component has a mounting surface for supporting the bearing. One of the metal implant components includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augments.Type: ApplicationFiled: July 9, 2015Publication date: November 5, 2015Inventors: STEPHANIE M. WAINSCOTT, DAREN L. DEFFENBAUGH, HENGDA D. LIU, ANDREW J. MARTIN, JEFFREY A. RYBOLT, BRYAN J. SMITH, ANTHONY D. ZANNIS
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Patent number: 9101476Abstract: A joint prosthesis system is suitable for cementless fixation. The system has two metal implant components and a bearing. One of the metal implant components has an articulation surface for articulation with the bearing. The other metal implant component has a mounting surface for supporting the bearing. One of the metal implant components includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment.Type: GrantFiled: October 14, 2010Date of Patent: August 11, 2015Assignee: DEPUY (IRELAND)Inventors: Stephanie M. Deruntz, Daren L. Deffenbaugh, Hengda D. Liu, Andrew J. Martin, Jeffrey A. Rybolt, Bryan J. Smith, Anthony D. Zannis
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Publication number: 20150157460Abstract: Provided are methods for processing a green body that includes compacted metal powder, comprising impacting the green body with a particulate material for a time and under conditions effective to displace a portion of the metal powder from the green body. The present methods can be used to prepare green bodies that have “roughened” surfaces and that can be used to make orthopedic implants displaying low movement relative to bone when installed in situ, which corresponds to higher stability upon implantation and decreases the time required for biological fixation of the implant. Also provided are implants comprising a metallic matrix, and methods comprising surgically installing an implant prepared from a “surface roughened” green body in accordance with the present invention.Type: ApplicationFiled: September 17, 2014Publication date: June 11, 2015Inventors: Bryan J. Smith, Jeffrey A. Rybolt, Hengda D. Liu, Andrew J. Martin
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Patent number: 8871142Abstract: Provided are methods for processing a green body that includes compacted metal powder, comprising impacting the green body with a particulate material for a time and under conditions effective to displace a portion of the metal powder from the green body. The present methods can be used to prepare green bodies that have “roughened” surfaces and that can be used to make orthopedic implants displaying low movement relative to bone when installed in situ, which corresponds to higher stability upon implantation and decreases the time required for biological fixation of the implant. Also provided are implants comprising a metallic matrix, and methods comprising surgically installing an implant prepared from a “surface roughened” green body in accordance with the present invention.Type: GrantFiled: May 21, 2009Date of Patent: October 28, 2014Assignee: DePuy Synthes Products, LLCInventors: Bryan Smith, Jeffrey A. Rybolt, Derek Hengda Liu, Andrew James Martin
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Publication number: 20140277547Abstract: An orthopaedic prosthesis for cementless fixation has a solid metal base and porous metal pegs extending out from the base. The pegs are mechanically, rather than metallurgically, fixed to the base. A process for making such a prosthesis is also disclosed.Type: ApplicationFiled: February 21, 2014Publication date: September 18, 2014Applicant: Depuy Synthes Products, LLCInventors: JEFFREY A RYBOLT, BRYAN J SMITH
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Patent number: 8506643Abstract: An acetabular prosthesis system configured to be coupled to a surgically-prepared acetabulum includes an acetabular shell, an augment component, and a fastener configured to couple the acetabular shell and the augment component together.Type: GrantFiled: July 8, 2011Date of Patent: August 13, 2013Assignee: DePuy Synthes Products, LLCInventors: Ryan C. Keefer, Jeffrey A. Rybolt, Hengda D. Liu, Matthew D. Smith, Gerhard J. A. Drescher
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Publication number: 20110264232Abstract: An acetabular prosthesis system configured to be coupled to a surgically-prepared acetabulum includes an acetabular shell, an augment component, and a fastener configured to couple the acetabular shell and the augment component together.Type: ApplicationFiled: July 8, 2011Publication date: October 27, 2011Inventors: Ryan C. Keefer, Jeffrey A. Rybolt, Hengda D. Liu, Matthew D. Smith, Gerhard J. A. Drescher
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Patent number: 7985260Abstract: An acetabular prosthesis system configured to be coupled to a surgically-prepared acetabulum includes an acetabular shell, an augment component, and a fastener configured to couple the acetabular shell and the augment component together.Type: GrantFiled: June 30, 2008Date of Patent: July 26, 2011Assignee: DePuy Products, Inc.Inventors: Ryan C. Keefer, Jeffrey A. Rybolt, Hengda D. Liu, Matthew D. Smith, Gerhard J. A. Drescher
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Publication number: 20110068500Abstract: Provided are molds comprising a substantially concave portion, and a cap portion that is configured for removable attachment to the substantially concave portion and comprises a mandrel formed from a substantially rigid material, wherein the cap portion and the substantially concave portion, when attached, define an internal space having a three-dimensional shape. Among other benefits, the disclosed devices and methods of using such devices provide more uniform and repeatable compaction than conventional molds, and can be used to produce compacted structures having more dimensionally accurate and repeatable surface features, thereby yielding a better, more optimal near net shaped part.Type: ApplicationFiled: September 8, 2010Publication date: March 24, 2011Applicant: DEPUY PRODUCTS, Inc.Inventors: ANDREW JAMES MARTIN, HENGDA DEREK LIU, JUWAN RIM, JEFFREY A. RYBOLT
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Publication number: 20110029092Abstract: A joint prosthesis system is suitable for cemented fixation. The system has two metal implant components and a bearing. One of the metal implant components has an articulation surface for articulation with the bearing. The other metal implant component has a mounting surface for supporting the bearing. One of the metal implant components includes a solid metal portion and a porous metal portion. The porous metal portion has surfaces with different characteristics, such as roughness, to improve bone fixation, ease removal of the implant component in a revision surgery, reduce soft tissue irritation, improve the strength of a sintered bond between the solid and porous metal portions, or reduce or eliminate the possibility of blood traveling through the porous metal portion into the joint space. A method of making the joint prosthesis is also disclosed. The invention may also be applied to discrete porous metal implant components, such as augment.Type: ApplicationFiled: October 14, 2010Publication date: February 3, 2011Applicant: DEPUY PRODUCTS, INC.Inventors: STEPHANIE M. DERUNTZ, DAREN L. DEFFENBAUGH, HENGDA D. LIU, ANDREW J. MARTIN, JEFFREY A. RYBOLT, BRYAN J. SMITH, ANTHONY D. ZANNIS
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Publication number: 20090326670Abstract: An acetabular prosthesis system configured to be coupled to a surgically-prepared acetabulum includes an acetabular shell, an augment component, and a fastener configured to couple the acetabular shell and the augment component together.Type: ApplicationFiled: June 30, 2008Publication date: December 31, 2009Inventors: Ryan C. Keefer, Jeffrey A. Rybolt, Hengda D. Liu, Matthew D. Smith, Gerhard J. A. Drescher