Patents by Inventor Thomas P. Schaer

Thomas P. Schaer 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).

  • Patent number: 11951134
    Abstract: An acellular, anion-depleted platelet-derived peptide-rich composition comprising proteins, polypeptides and peptides <10 kDa in size, wherein the composition has anti-microbial and/or anti-inflammatory activity is disclosed. The composition can be substantially free of non-active and immunogenic factors. The composition can have a platelet-to-bacteria ratio ?1000:1. The composition can comprise plasma at a range of ?10% to ?50% plasma, optionally about 10% plasma. Methods of using the composition are also disclosed.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: April 9, 2024
    Assignees: North Carolina State University, The Trustees of the University of Pennsylvania
    Inventors: Jessica M. Gilbertie, Lauren V. Schnabel, Thomas P. Schaer
  • Publication number: 20210330859
    Abstract: The present disclosure relates to hydrogels and their use for repairing or supplementing body tissue. The hydrogels are capable of safe injection into patients through fine gauge needles and are suitable for repairing, supplementing, or replacing the nucleus pulposus of an intervertebral disc. Methods of manufacturing and methods of using the hydrogels of the present disclosure to repair or replace tissues are also disclosed.
    Type: Application
    Filed: July 2, 2021
    Publication date: October 28, 2021
    Inventors: Anthony LOWMAN, Thomas P. SCHAER, Peter WILSON, Erik BREWER, Nigel Gordon SMITH
  • Publication number: 20210128626
    Abstract: An acellular, anion-depleted platelet-derived peptide-rich composition comprising proteins, polypeptides and peptides <10 kDa in size, wherein the composition has anti-microbial and/or anti-inflammatory activity is disclosed. The composition can be substantially free of non-active and immunogenic factors. The composition can have a platelet-to-bacteria ratio ?1000:1. The composition can comprise plasma at a range of ?10% to ?50% plasma, optionally about 10% plasma. Methods of using the composition are also disclosed.
    Type: Application
    Filed: September 30, 2020
    Publication date: May 6, 2021
    Inventors: Jessica M. Gilbertie, Lauren V. Schnabel, Thomas P. Schaer
  • Patent number: 10954347
    Abstract: The present disclosure relates to hydrogels and their use for repairing or supplementing body tissue. The hydrogels are capable of safe injection into patients through fine gauge needles and are suitable for repairing, supplementing, or replacing the nucleus pulposus of an intervertebral disc. Methods of manufacturing and methods of using the hydrogels of the present disclosure to repair or replace tissues are also disclosed.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: March 23, 2021
    Assignee: REGELTEC, INC.
    Inventors: Thomas P. Schaer, Peter Wilson, Erik Brewer, Anthony Lowman, Nigel Gordon Smith
  • Publication number: 20200255601
    Abstract: The present disclosure relates to hydrogels and their use for repairing or supplementing body tissue. The hydrogels are capable of safe injection into patients through fine gauge needles and are suitable for repairing, supplementing, or replacing the nucleus pulposus of an intervertebral disc. Methods of manufacturing and methods of using the hydrogels of the present disclosure to repair or replace tissues are also disclosed.
    Type: Application
    Filed: April 23, 2020
    Publication date: August 13, 2020
    Inventors: Thomas P. SCHAER, Peter WILSON, Erik BREWER, Anthony LOWMAN, Nigel Gordon SMITH
  • Patent number: 10500317
    Abstract: Orthopedic and dental implants coated with an antibacterial coating and methods of making and using, are described herein. The implant can be coated with a hydrophobic, polycationic antibacterial polymer. The polymer can be covalently or non-covalently associated with the surface; however, in particular embodiments, the polymer is non-covalently associated with the surface. As shown in the examples below, clinical observations, digital radiography, and a battery of well-accepted ex vivo analytical methods show that the presence of a hydrophobic polycationic polymer coating, such as N,N-dodecyl,methyl-PEI coating on the surface of a metal implant, was effective in eliminating the clinical signs of infection in vivo in a large animal infection model. Moreover, the coated plates supported bone healing, and in fact decreased healing times, even in the presence of significant bacterial contamination compared to a control.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: December 10, 2019
    Assignees: Massachusetts Institute of Technology, The Trustees of the University of Pennsylvania
    Inventors: Thomas P. Schaer, Suzanne Stewart, Alexander M. Klibanov
  • Publication number: 20180078682
    Abstract: Orthopedic and dental implants coated with an antibacterial coating and methods of making and using, are described herein. The implant can be coated with a hydrophobic, polycationic antibacterial polymer. The polymer can be covalently or non-covalently associated with the surface; however, in particular embodiments, the polymer is non-covalently associated with the surface. As shown in the examples below, clinical observations, digital radiography, and a battery of well-accepted ex vivo analytical methods show that the presence of a hydrophobic polycationic polymer coating, such as N,N-dodecyl,methyl-PEI coating on the surface of a metal implant, was effective in eliminating the clinical signs of infection in vivo in a large animal infection model. Moreover, the coated plates supported bone healing, and in fact decreased healing times, even in the presence of significant bacterial contamination compared to a control.
    Type: Application
    Filed: November 16, 2017
    Publication date: March 22, 2018
    Applicant: The Trustees of the University of Pennsylvania
    Inventors: Thomas P. Schaer, Suzanne Stewart, Alexander M. Klibanov
  • Publication number: 20150328378
    Abstract: Orthopedic and dental implants coated with an antibacterial coating and methods of making and using, are described herein. The implant can be coated with a hydrophobic, polycationic antibacterial polymer. The polymer can be covalently or non-covalently associated with the surface; however, in particular embodiments, the polymer is non-covalently associated with the surface. As shown in the examples below, clinical observations, digital radiography, and a battery of well-accepted ex vivo analytical methods show that the presence of a hydrophobic polycationic polymer coating, such as N,N-dodecyl,methyl-PEI coating on the surface of a metal implant, was effective in eliminating the clinical signs of infection in vivo in a large animal infection model. Moreover, the coated plates supported bone healing, and in fact decreased healing times, even in the presence of significant bacterial contamination compared to a control.
    Type: Application
    Filed: July 27, 2015
    Publication date: November 19, 2015
    Inventors: Thomas P. Schaer, Suzanne Stewart, Alexander M. Klibanov
  • Patent number: 9089407
    Abstract: Orthopedic and dental implants coated with an antibacterial coating and methods of making and using, are described herein. The implant can be coated with a hydrophobic, polycationic antibacterial polymer. The polymer can be covalently or non-covalently associated with the surface; however, in particular embodiments, the polymer is non-covalently associated with the surface. As shown in the examples below, clinical observations, digital radiography, and a battery of well-accepted ex vivo analytical methods show that the presence of a hydrophobic polycationic polymer coating, such as N,N-dodecyl,methyl-PEI coating on the surface of a metal implant, was effective in eliminating the clinical signs of infection in vivo in a large animal infection model. Moreover, the coated plates supported bone healing, and in fact decreased healing times, even in the presence of significant bacterial contamination compared to a control.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: July 28, 2015
    Assignees: Massachusetts Institute of Technology, The Trustees of the University of Pennsylvania
    Inventors: Thomas P. Schaer, Suzanne Stewart, Alexander M. Klibanov
  • Patent number: 8147553
    Abstract: A degenerated nucleus pulposus located in a central core region of an intervertebral disc within the annulus fibrosus is supplemented or replaced by a method wherein an amount of a biocompatible material is introduced into the central core region by a process including the steps of 1) forming a channel through a vertebral body adjacent to said intervertebral disc, extending from an exterior surface of the vertebral body to the central core region of the annulus fibrosus; 2) introducing an amount of a biocompatible material through the channel into the central core region of the annulus fibrosus; 3) pressurizing the biocompatible material through the channel to a postsurgical pressure sufficient to alleviate symptoms caused by the degenerated nucleus pulposus; and 4) sealing the channel while maintaining the sufficient postsurgical pressure. After sealing the channel, a vertebroplasty may optionally be performed in the vertebra.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: April 3, 2012
    Assignee: Synthes USA, LLC
    Inventors: Edward Vresilovic, Michael F. Keane, Thomas P. Schaer
  • Publication number: 20080312744
    Abstract: A degenerated nucleus pulposus located in a central core region of an intervertebral disc within the annulus fibrosus is supplemented or replaced by a method wherein an amount of a biocompatible material is introduced into the central core region by a process including the steps of 1) forming a channel through a vertebral body adjacent to said intervertebral disc, extending from an exterior surface of the vertebral body to the central core region of the annulus fibrosus; 2) introducing an amount of a biocompatible material through the channel into the central core region of the annulus fibrosus; 3) pressurizing the biocompatible material through the channel to a postsurgical pressure sufficient to alleviate symptoms caused by the degenerated nucleus pulposus; and 4) sealing the channel while maintaining the sufficient postsurgical pressure. After sealing the channel, a vertebroplasty may optionally be performed in the vertebra.
    Type: Application
    Filed: June 27, 2008
    Publication date: December 18, 2008
    Inventors: Edward Vresilovic, Michael F. Keane, Thomas P. Schaer