Patents by Inventor Alfred S. Despres
Alfred S. Despres 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: 11565021Abstract: A porous implant for repairing lost bone stock such as around a prosthetic joint is provided. The porous implant has a composite structure with a solid structure and a porous structure which may be formed monolithically by direct metal laser sintering. The solid structure includes a support structure which extends into the porous structure.Type: GrantFiled: November 5, 2019Date of Patent: January 31, 2023Assignee: ORTHO DEVELOPMENT CORPORATIONInventors: Bryan K Davies, Alfred S Despres, Susanne F Sealy, Cass K Nakasone, Anthony P Sanders, Bao-Khang Ngoc Nguyen
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Patent number: 9463092Abstract: Polycrystalline diamond compacts for use in artificial joints achieve reduced corrosion and improved biocompatibility through the use of solvent metal formulations containing tin and through the control of solvent metal pore size, particularly in inner layers of the compact. Solvent metal formulations containing tin have been discovered which provide sintering ability, part strength, and grind resistance comparable to levels achieved by using CoCrMo solvent metals. It has been discovered that limiting the solvent metal pore size in the diamond layers minimizes or eliminates the occurrence of micro cracks in the solvent metal and significantly reduces the corrosion of the compact as manifested by the release of heavy metal ions from the compact. Polycrystalline diamond compacts which utilize both the solvent metal formulations containing tin and the control of pore sizes achieve significantly reduced corrosion and improved biocompatibility compared to prior art polycrystalline diamond compacts.Type: GrantFiled: May 15, 2013Date of Patent: October 11, 2016Assignee: DIMICRON, INC.Inventors: Clayton F Gardinier, Alfred S Despres, Troy J Medford, Tim Bunton
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Patent number: 9161840Abstract: An improved body element for use in a modular prosthetic stem component of the sort comprising a body element and at least one other element, wherein the body element and the at least one other element are joined together by at least one modular connection, wherein the improved body element comprises an anterior wall and a posterior wall, at least one of the anterior wall and the posterior wall converging toward the other on the medial side of the body element and diverging away from the other on the lateral side of the body element, whereby the body element approximates a general wedge shape.Type: GrantFiled: January 14, 2005Date of Patent: October 20, 2015Assignee: Consensus Orthopedics, Inc.Inventors: Daniel E. E. Hayes, Jr., Alfred S. Despres, III
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Publication number: 20130260173Abstract: Polycrystalline diamond compacts for use in artificial joints achieve reduced corrosion and improved biocompatibility through the use of solvent metal formulations containing tin and through the control of solvent metal pore size, particularly in inner layers of the compact. Solvent metal formulations containing tin have been discovered which provide sintering ability, part strength, and grind resistance comparable to levels achieved by using CoCrMo solvent metals. It has been discovered that limiting the solvent metal pore size in the diamond layers minimizes or eliminates the occurrence of micro cracks in the solvent metal and significantly reduces the corrosion of the compact as manifested by the release of heavy metal ions from the compact. Polycrystalline diamond compacts which utilize both the solvent metal formulations containing tin and the control of pore sizes achieve significantly reduced corrosion and improved biocompatibility compared to prior art polycrystalline diamond compacts.Type: ApplicationFiled: May 15, 2013Publication date: October 3, 2013Inventors: Clayton F. Gardinier, Alfred S. Despres, Troy J. Medford, Tim Bunton
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Publication number: 20130253658Abstract: A prosthetic femoral stem component comprising a body element, a neck element and a stem, element, with the body element, neck element and stem element being secured to one another with a modular connection, wherein the modular connection comprises a taper junction and an engaged-fit junction.Type: ApplicationFiled: November 6, 2012Publication date: September 26, 2013Applicant: DePuy Products, Inc.Inventors: Alfred S. Despres, Daniel E.E. Hayes
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Patent number: 8449991Abstract: Polycrystalline diamond compacts for use in artificial joints achieve reduced corrosion and improved biocompatibility through the use of solvent metal formulations containing tin and through the control of solvent metal pore size, particularly in inner layers of the compact. Solvent metal formulations containing tin have been discovered which provide sintering ability, part strength, and grind resistance comparable to levels achieved by using CoCrMo solvent metals. It has been discovered that limiting the solvent metal pore size in the diamond layers minimizes or eliminates the occurrence of micro cracks in the solvent metal and significantly reduces the corrosion of the compact as manifested by the release of heavy metal ions from the compact. Polycrystalline diamond compacts which utilize both the solvent metal formulations containing tin and the control of pore sizes achieve significantly reduced corrosion and improved biocompatibility compared to prior art polycrystalline diamond compacts.Type: GrantFiled: April 10, 2009Date of Patent: May 28, 2013Assignee: Dimicron, Inc.Inventors: Clayton F. Gardinier, Alfred S. Despres, Troy J. Medford, Tim Bunton
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Patent number: 8303668Abstract: A prosthetic femoral stem component includes a body element, a neck element and a stem element. The body element, neck element and stem element are secured to one another with a modular connection, the modular connection having a taper junction and an engaged-fit junction. The engaged-fit junction is formed by interaction of first and second concentric walls, the first concentric wall being formed on a shaft of the neck element and the second concentric wall being formed along a portion of a sidewall defining an aperture extending through the body element.Type: GrantFiled: August 15, 2006Date of Patent: November 6, 2012Assignee: DePuy Products, Inc.Inventors: Alfred S. Despres, III, Daniel E. E. Hayes, Jr.
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Patent number: 8167954Abstract: Systems and methods are described for implants with composite coatings to promote tissue in-growth and/or on-growth. An implant includes: a substrate; a structured surface formed on at least a portion of the substrate; and a biocompatible coating deposited on at least a fraction of the structured surface. The systems and methods provide advantages in that the implant has good biocompatibility while the biocompatible coating has good strength.Type: GrantFiled: November 4, 2008Date of Patent: May 1, 2012Assignee: Consensus Orthopedics, Inc.Inventors: Alfred S. Despres, III, Eugene J. Elwood, Robert R. Aharonov, Peter Ehlers, Knut Andersen
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Publication number: 20090263643Abstract: Polycrystalline diamond compacts for use in artificial joints achieve reduced corrosion and improved biocompatibility through the use of solvent metal formulations containing tin and through the control of solvent metal pore size, particularly in inner layers of the compact. Solvent metal formulations containing tin have been discovered which provide sintering ability, part strength, and grind resistance comparable to levels achieved by using CoCrMo solvent metals. It has been discovered that limiting the solvent metal pore size in the diamond layers minimizes or eliminates the occurance of micro cracks in the solvent metal and significantly reduces the corrosion of the compact as manifested by the release of heavy metal ions from the compact. Polycrystalline diamond compacts which utilize both the solvent metal formulations containing tin and the control of pore sizes achieve significantly reduced corrosion and improved biocompatibility compared to prior art polycrystalline diamond compacts.Type: ApplicationFiled: April 10, 2009Publication date: October 22, 2009Inventors: Clayton F. Gardinier, Alfred S. Despres, Troy J. Medford, Tim Bunton
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Publication number: 20090254191Abstract: Systems and methods are described for implants with composite coatings to promote tissue in-growth and/or on-growth. An implant includes: a substrate; a structured surface formed on at least a portion of the substrate; and a biocompatible coating deposited on at least a fraction of the structured surface. The systems and methods provide advantages in that the implant has good biocompatibility while the biocompatible coating has good strength.Type: ApplicationFiled: November 4, 2008Publication date: October 8, 2009Inventors: Alfred S. Despres, III, Eugene J. Elwood, Robert R. Aharonov, Peter Ehlers, Knut Andersen
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Patent number: 7537408Abstract: An orthopedic component comprising a first element and a second element, with the first element and the second element being secured to one another with a modular connection, wherein the modular connection comprises a taper junction and an engaged-fit junction.Type: GrantFiled: October 24, 2006Date of Patent: May 26, 2009Assignee: DePuy Products, Inc.Inventors: Alfred S. Despres, III, Daniel E. E. Hayes, Jr.
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Patent number: 7445640Abstract: Systems and methods are described for implants with composite coatings to promote tissue in-growth and/or on-growth. An implant includes: a substrate; a structured surface formed on at least a portion of the substrate; and a biocompatible coating deposited on at least a fraction of the structured surface. The systems and methods provide advantages in that the implant has good biocompatibility while the biocompatible coating has good strength.Type: GrantFiled: January 10, 2006Date of Patent: November 4, 2008Assignee: Hayes Medical, Inc.Inventors: Alfred S. Despres, III, Eugene J. Elwood, Robert R. Aharonov, Peter Ehlers, Knut Andersen
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Publication number: 20080147071Abstract: A bone milling instrument is disclosed for creating a shaped cavity from an initial cavity in a bone, the bone milling instrument comprising a reference frame having a proximal end and a distal end, the reference frame defining a longitudinal axis between the proximal end and the distal end, a centering member provided at the distal end of the reference frame, the centering member configured for placement within the initial cavity so as to selectively maintain a relative positioning of the longitudinal axis of the reference frame and the bone with one another, a registration surface for engaging a portion of the initial cavity so as to establish a desired vertical position of the reference frame along the longitudinal axis, the registration surface located proximally of the centering member, and an attachment site provided proximally of the registration surface, a guidance support member having a first end and a second end, an attachment mechanism at the first end of the guidance support member for adjustableType: ApplicationFiled: August 14, 2007Publication date: June 19, 2008Inventors: Michael A. Serra, Shaun B. Hanson, Alfred S. Despres
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Patent number: 7377182Abstract: This invention provides for a tool that produces, and directly and accurately measures, an axial force used to assemble two members of a modular implant, specifically, a modular hip implant.Type: GrantFiled: March 22, 2005Date of Patent: May 27, 2008Inventors: Michael A. Serra, Alfred S. Despres
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Patent number: 7291176Abstract: This invention provides apparatus and a method for assembling a modular hip implant where the desired orientation of the neck component is uniquely determined during the trialing phase of the operation, and that same desired orientation is accurately reproduced during the implantation phase of the actual hip implant device.Type: GrantFiled: May 9, 2003Date of Patent: November 6, 2007Assignee: Hayes Medical, Inc.Inventors: Michael A. Serra, Shaun B. Hanson, Alfred S. Despres, Robert German
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Patent number: 7255702Abstract: A bone milling instrument is disclosed for creating a shaped cavity from an initial cavity in a bone, the bone milling instrument comprising a reference frame, a centering member at the distal end of the reference frame, a registration surface for engaging a portion of the initial cavity, and an attachment site provided proximally of the registration surface, a guidance support member, an attachment mechanism at the first end of the guidance support member, and a constrained pathway extending between the ends of the guidance support member; a shuttle having a first connection element configured for positionably attaching the shuttle to the guidance support member, and a second connection element configured to provide a rotational coupler; and a cutting device having a cutting portion configured at a distal end thereof, and an attachment portion provided at a proximal end.Type: GrantFiled: May 9, 2003Date of Patent: August 14, 2007Inventors: Michael A. Serra, Shaun B. Hanson, Alfred S. Despres, III
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Patent number: 7125193Abstract: An orthopedic component comprising a first element and a second element, with the first element and the second element being secured to one another with a modular connection, wherein the modular connection comprises a taper junction and an engaged-fit junction.Type: GrantFiled: December 30, 2003Date of Patent: October 24, 2006Assignee: Depuy Products, Inc.Inventors: Alfred S. Despres, III, Daniel E. E. Hayes, Jr.
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Patent number: 7105030Abstract: Systems and methods are described for implants with composite coatings to promote tissue in-growth and/or on-growth. An implant includes: a substrate; a structured surface formed on at least a portion of the substrate; and a biocompatible coating deposited on at least a fraction of the structured surface. The systems and methods provide advantages in that the implant has good biocompatibility while the biocompatible coating has good strength.Type: GrantFiled: July 9, 2001Date of Patent: September 12, 2006Assignee: Hayes Medical, Inc.Inventors: Alfred S. Despres, III, Eugene J. Elwood, Robert R. Aharonov, Peter Ehlers, Knut Andersen
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Patent number: 7097664Abstract: A prosthetic femoral stem component comprising a body element, a neck element and a stem element, with the body element, neck element and stem element being secured to one another with a modular connection, wherein the modular connection comprises a taper junction and an engaged-fit junction.Type: GrantFiled: January 26, 2004Date of Patent: August 29, 2006Assignee: Depuy Products, Inc.Inventors: Alfred S. Despres, III, Daniel E. E. Hayes, Jr.
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Patent number: 6871549Abstract: This invention provides for a tool that produces, and directly and accurately measures, an axial force used to assemble two members of a modular implant, specifically, a modular hip implant.Type: GrantFiled: May 9, 2003Date of Patent: March 29, 2005Inventors: Michael A. Serra, Alfred S. Despres