Patents by Inventor Vivek D. Pawar

Vivek D. Pawar 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: 20220362024
    Abstract: There are provided herein methods and products resulting therefrom. The methods include attaching a pre-fabricated porous ingrowth structure to a substrate by applying heat, or creating and bonding an in-situ-formed porous ingrowth structure from beads on a substrate by applying heat. In some embodiments, an oxidized metal surface of the substrate is diffusion hardened during the heating process. In some embodiments, a vacuum is applied during the heating process. In some embodiments, pressure is applied during the heating process. Also provided herein are assemblies for compressing the pre-fabricated porous ingrowth structure or the beads onto the substrate during the heating process.
    Type: Application
    Filed: August 1, 2022
    Publication date: November 17, 2022
    Applicants: Smith & Nephew, Inc., Smith & Nephew Orthopaedics AG, Smith & Nephew Asia Pacific Pte. Limited
    Inventors: Marcus L. Scott, Vivek D. Pawar, Carolyn L. Weaver, Daniel A. Heuer, Roger R. Dees, JR., Forrest A. James, Matthew J. Quick
  • Patent number: 11446150
    Abstract: There are provided herein methods and products resulting therefrom. The methods include attaching a pre-fabricated porous ingrowth structure to a substrate by applying heat, or creating and bonding an in-situ-formed porous ingrowth structure from beads on a substrate by applying heat. In some embodiments, an oxidized metal surface of the substrate is diffusion hardened during the heating process. In some embodiments, a vacuum is applied during the heating process. In some embodiments, pressure is applied during the heating process. Also provided herein are assemblies for compressing the pre-fabricated porous ingrowth structure or the beads onto the substrate during the heating process.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: September 20, 2022
    Assignees: Smith & Nephew, Inc., Smith & Nephew Orthopaedics AG, Smith & Nephew Asia Pacific Pte. Limited
    Inventors: Marcus L. Scott, Vivek D. Pawar, Carolyn L. Weaver, Daniel A. Heuer, Roger R. Dees, Jr., Forrest A. James, Matthew J. Quick
  • Publication number: 20200000977
    Abstract: A method of incorporating silver and/or copper into a biomedical implant includes: providing an implant having an outer surface; depositing silver and/or copper onto the outer surface of the implant; diffusing the silver and/or copper into a subsurface zone adjacent the outer surface; and oxidizing or anodizing the implant after the diffusion step to form an oxidized or anodized layer that contains at least some amount of elemental silver, elemental copper or silver or copper ions or compounds.
    Type: Application
    Filed: August 20, 2019
    Publication date: January 2, 2020
    Inventors: Vivek D. Pawar, John Rose, Carolyn Weaver
  • Publication number: 20190337055
    Abstract: The present disclosure provides methods to improve the properties of a porous structure formed by a rapid manufacturing technique. Embodiments of the present disclosure increase the bonding between the micro-particles 5 on the surface of the porous structure and the porous structure itself without substantially reduce the surface area of the micro-particles. In one aspect, embodiments of the present disclosure improves the bonding while preserving or increasing the friction of the structure against adjacent materials.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 7, 2019
    Inventors: Marcus L. Scott, Lu Gan, Vivek D. Pawar, Stanley Tsai
  • Patent number: 10413640
    Abstract: A method of incorporating silver and/or copper into a biomedical implant includes: providing an implant having an outer surface; depositing silver and/or copper onto the outer surface of the implant; diffusing the silver and/or copper into a subsurface zone adjacent the outer surface; and oxidizing or anodizing the implant after the diffusion step to form an oxidized or anodized layer that contains at least some amount of elemental silver, elemental copper or silver or copper ions or compounds.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: September 17, 2019
    Assignee: SMITH & NEPHEW, INC.
    Inventors: Vivek D. Pawar, John Rose, Carolyn Weaver
  • Patent number: 10399147
    Abstract: The present disclosure provides methods to improve the properties of a porous structure formed by a rapid manufacturing technique. Embodiments of the present disclosure increase the bonding between the micro-particles 5 on the surface of the porous structure and the porous structure itself without substantially reduce the surface area of the micro-particles. In one aspect, embodiments of the present disclosure improves the bonding while preserving or increasing the friction of the structure against adjacent materials.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: September 3, 2019
    Assignee: Smith & Nephew, Inc.
    Inventors: Marcus L Scott, Lu Gan, Vivek D Pawar, Stanley Tsai
  • Patent number: 9971267
    Abstract: Oxidation resistant crosslinked ultrahigh molecular weight polyethylene (UHMWPE) is described, wherein at least two different additives in the manufacture synergistically increase the oxidation resistance of crosslinked UHMWPE. This allows the manufacture of oxidation resistant crosslinked UHMWPE using lower levels of additives and/or lower levels of crosslinking irradiation or chemicals. The lower levels of additives and/or crosslinking produce crosslinked UHMWPE having desired physical properties not possible without the synergistic interaction of the additives. This crosslinked UHMWPE may be used in medical prostheses such as in bearing components having desired physical properties such as wear resistance and oxidation resistance not possible without the synergistic interaction of the additives.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: May 15, 2018
    Assignee: Smith & Nephew, Inc.
    Inventors: Mark L. Morrison, Vivek D. Pawar, Lorenz Brunner, Shilesh C. Jani
  • Patent number: 9775713
    Abstract: A device, for example a medical implant, and a method of making the same, the device having a metal or metal alloy substrate, for example CoCr, and a diffusion hardened metallic surface, for example a plasma carburized surface, contacting a non-diffusion hardened surface or a diffusion hardened surface having a diffusion hardening species different from that of the opposing surface.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: October 3, 2017
    Assignee: Smith & Nephew, Inc.
    Inventors: Timothy J. Band, Hamish Forster, Vivek D. Pawar, Abraham B. Salehi, Jeffrey J. Shea, Gordon B. Hunter, Shilesh C. Jani, Mark L. Morrison
  • Publication number: 20170137603
    Abstract: Oxidation resistant crosslinked ultrahigh molecular weight polyethylene (UHMWPE) is described, wherein at least two different additives in the manufacture synergistically increase the oxidation resistance of crosslinked UHMWPE. This allows the manufacture of oxidation resistant crosslinked UHMWPE using lower levels of additives and/or lower levels of crosslinking irradiation or chemicals. The lower levels of additives and/or crosslinking produce crosslinked UHMWPE having desired physical properties not possible without the synergistic interaction of the additives. This crosslinked UHMWPE may be used in medical prostheses such as in bearing components having desired physical properties such as wear resistance and oxidation resistance not possible without the synergistic interaction of the additives.
    Type: Application
    Filed: January 31, 2017
    Publication date: May 18, 2017
    Inventors: Mark L. Morrison, Vivek D. Pawar, Lorenz Brunner, Shilesh C. Jani
  • Patent number: 9555161
    Abstract: Oxidation resistant crosslinked ultrahigh molecular weight polyethylene (UHMWPE) is described, wherein at least two different additives in the manufacture synergistically increase the oxidation resistance of crosslinked UHMWPE. This allows the manufacture of oxidation resistant crosslinked UHMWPE using lower levels of additives and/or lower levels of crosslinking irradiation or chemicals. The lower levels of additives and/or crosslinking produce crosslinked UHMWPE having desired physical properties not possible without the synergistic interaction of the additives. This crosslinked UHMWPE may be used in medical prostheses such as in bearing components having desired physical properties such as wear resistance and oxidation resistance not possible without the synergistic interaction of the additives.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: January 31, 2017
    Assignee: Smith & Nephew, Inc.
    Inventors: Mark L. Morrison, Vivek D. Pawar, Lorenz Brunner, Shilesh C. Jani
  • Publication number: 20160250394
    Abstract: A method of incorporating silver and/or copper into a biomedical implant includes: providing an implant having an outer surface; depositing silver and/or copper onto the outer surface of the implant; diffusing the silver and/or copper into a subsurface zone adjacent the outer surface; and oxidizing or anodizing the implant after the diffusion step to form an oxidized or anodized layer that contains at least some amount of elemental silver, elemental copper or silver or copper ions or compounds.
    Type: Application
    Filed: July 25, 2014
    Publication date: September 1, 2016
    Inventors: Vivek D. PAWAR, John Rose, Carolyn Weaver
  • Publication number: 20160015857
    Abstract: Oxidation resistant crosslinked ultrahigh molecular weight polyethylene (UHMWPE) is described, wherein at least two different additives in the manufacture synergistically increase the oxidation resistance of crosslinked UHMWPE. This allows the manufacture of oxidation resistant crosslinked UHMWPE using lower levels of additives and/or lower levels of crosslinking irradiation or chemicals. The lower levels of additives and/or crosslinking produce crosslinked UHMWPE having desired physical properties not possible without the synergistic interaction of the additives. This crosslinked UHMWPE may be used in medical prostheses such as in bearing components having desired physical properties such as wear resistance and oxidation resistance not possible without the synergistic interaction of the additives.
    Type: Application
    Filed: September 30, 2015
    Publication date: January 21, 2016
    Inventors: Mark L. Morrison, Vivek D. Pawar, Lorenz Brunner, Shilesh C. Jani
  • Patent number: 9156963
    Abstract: Oxidation resistant crosslinked ultrahigh molecular weight polyethylene (UHMWPE) is described, wherein at least two different additives in the manufacture synergistically increase the oxidation resistance of crosslinked UHMWPE. This allows the manufacture of oxidation resistant crosslinked UHMWPE using lower levels of additives and/or lower levels of crosslinking irradiation or chemicals. The lower levels of additives and/or crosslinking produce crosslinked UHMWPE having desired physical properties not possible without the synergistic interaction of the additives. This crosslinked UHMWPE may be used in medical prostheses such as in bearing components having desired physical properties such as wear resistance and oxidation resistance not possible without the synergistic interaction of the additives.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: October 13, 2015
    Assignee: Smith & Newphew, Inc.
    Inventors: Mark L. Morrison, Vivek D. Pawar, Lorenz Brunner, Shilesh C. Jani
  • Publication number: 20150030493
    Abstract: The present disclosure provides methods to improve the properties of a porous structure formed by a rapid manufacturing technique. Embodiments of the present disclosure increase the bonding between the micro-particles 5 on the surface of the porous structure and the porous structure itself without substantially reduce the surface area of the micro-particles. In one aspect, embodiments of the present disclosure improves the bonding while preserving or increasing the friction of the structure against adjacent materials.
    Type: Application
    Filed: February 20, 2013
    Publication date: January 29, 2015
    Inventors: Marcus L Scott, Lu Gan, Vivek D Pawar, Stanley Tsai
  • Publication number: 20140213683
    Abstract: Oxidation resistant crosslinked ultrahigh molecular weight polyethylene (UHMWPE) is described, wherein at least two different additives in the manufacture synergistically increase the oxidation resistance of crosslinked UHMWPE. This allows the manufacture of oxidation resistant crosslinked UHMWPE using lower levels of additives and/or lower levels of crosslinking irradiation or chemicals. The lower levels of additives and/or crosslinking produce crosslinked UHMWPE having desired physical properties not possible without the synergistic interaction of the additives. This crosslinked UHMWPE may be used in medical prostheses such as in bearing components having desired physical properties such as wear resistance and oxidation resistance not possible without the synergistic interaction of the additives.
    Type: Application
    Filed: February 14, 2014
    Publication date: July 31, 2014
    Applicant: Smith & Nephew, Inc.
    Inventors: Mark L. Morrison, Vivek D. Pawar, Lorenz Brunner, Shilesh C. Jani
  • Patent number: 8653154
    Abstract: Oxidation resistant crosslinked ultrahigh molecular weight polyethylene (UHMWPE) is described, wherein at least two different additives in the manufacture synergistically increase the oxidation resistance of crosslinked UHMWPE. This allows the manufacture of oxidation resistant crosslinked UHMWPE using lower levels of additives and/or lower levels of crosslinking irradiation or chemicals. The lower levels of additives and/or crosslinking produce crosslinked UHMWPE having desired physical properties not possible without the synergistic interaction of the additives. This crosslinked UHMWPE may be used in medical prostheses such as in bearing components having desired physical properties such as wear resistance and oxidation resistance not possible without the synergistic interaction of the additives.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: February 18, 2014
    Assignee: Smith & Nephew, Inc.
    Inventors: Mark L. Morrison, Vivek D. Pawar, Lorenz Brunner, Shilesh C. Jani
  • Publication number: 20120046380
    Abstract: Oxidation resistant crosslinked ultrahigh molecular weight polyethylene (UHMWPE) is described, wherein at least two different additives in the manufacture synergistically increase the oxidation resistance of crosslinked UHMWPE. This allows the manufacture of oxidation resistant crosslinked UHMWPE using lower levels of additives and/or lower levels of crosslinking irradiation or chemicals. The lower levels of additives and/or crosslinking produce crosslinked UHMWPE having desired physical properties not possible without the synergistic interaction of the additives. This crosslinked UHMWPE may be used in medical prostheses such as in bearing components having desired physical properties such as wear resistance and oxidation resistance not possible without the synergistic interaction of the additives.
    Type: Application
    Filed: May 4, 2010
    Publication date: February 23, 2012
    Applicant: SMITH & NEPHEW, INC.
    Inventors: Mark L. Morrison, Vivek D. Pawar, Lorenz Brunner, Shilesh C. Jani
  • Publication number: 20080281429
    Abstract: A device, for example a medical implant, and a method of making the same, the device having a metal or metal alloy substrate, for example CoCr, and a diffusion hardened metallic surface, for example a plasma carburized surface, contacting a non-diffusion hardened surface or a diffusion hardened surface having a diffusion hardening species different from that of the opposing surface.
    Type: Application
    Filed: January 18, 2007
    Publication date: November 13, 2008
    Applicant: Smith & Nephew, Inc.
    Inventors: Vivek D. Pawar, Abraham B. Salehi, Jeffrey J. Shea, Gordon B. Hunter, Shilesh C. Jani, Mark L. Morrison
  • Publication number: 20070251604
    Abstract: The present invention relates to a method of reworking a composition comprising a substrate and an oxidation and/or nitridation layer on the surface of the substrate by treating the composition under reduced pressure or in an inert gas environment at an elevated temperature until the oxidation and/or nitridation layer is substantially removed from the surface. In this way, manufacturing efficiencies and yields are improved as material that would otherwise have been scrapped is now used.
    Type: Application
    Filed: April 25, 2007
    Publication date: November 1, 2007
    Inventors: Shilesh C. Jani, Vivek D. Pawar, Carolyn L. Weaver