Patents by Inventor Benjamin A. Hertzog

Benjamin A. Hertzog 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: 20250020127
    Abstract: A non-occluding intravascular pump comprises a shroud providing an inlet for incoming blood flow and an outlet for outgoing blood flow, wherein the shroud is a cylindrical housing; an impeller positioned within shroud, wherein a central axis of the shroud and impeller are shared; a motor coupled to the impeller, wherein the motor rotates the impeller to causes blood to be drawn through the inlet and output to the outlet, and the motor is centrally disposed and shares the central axis with the shroud and the impeller; and a plurality of pillars coupling the motor to the shroud, wherein the pillars secure the shroud in close proximity to the impeller. Various design features of the pump may be optimized to reduce hemolysis, such as, but not limited to, inlet length, impeller design, pillar angle, and outlet design.
    Type: Application
    Filed: July 23, 2024
    Publication date: January 16, 2025
    Inventors: Sascha Gross-Hardt, Tim Kaufman, William L. Clifton, Benjamin A. Hertzog, Jason J. Heuring
  • Patent number: 12078192
    Abstract: A non-occluding intravascular pump comprises a shroud providing an inlet for incoming blood flow and an outlet for outgoing blood flow, wherein the shroud is a cylindrical housing; an impeller positioned within shroud, wherein a central axis of the shroud and impeller are shared; a motor coupled to the impeller, wherein the motor rotates the impeller to causes blood to be drawn through the inlet and output to the outlet, and the motor is centrally disposed and shares the central axis with the shroud and the impeller; and a plurality of pillars coupling the motor to the shroud, wherein the pillars secure the shroud in close proximity to the impeller. Various design features of the pump may be optimized to reduce hemolysis, such as, but not limited to, inlet length, impeller design, pillar angle, and outlet design.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: September 3, 2024
    Assignee: Procyrion, Inc.
    Inventors: Sascha Gross-Hardt, Tim Kaufman, William L. Clifton, Benjamin A. Hertzog, Jason J. Heuring
  • Publication number: 20220226634
    Abstract: A non-occluding intravascular pump comprises a shroud providing an inlet for incoming blood flow and an outlet for outgoing blood flow, wherein the shroud is a cylindrical housing; an impeller positioned within shroud, wherein a central axis of the shroud and impeller are shared; a motor coupled to the impeller, wherein the motor rotates the impeller to causes blood to be drawn through the inlet and output to the outlet, and the motor is centrally disposed and shares the central axis with the shroud and the impeller; and a plurality of pillars coupling the motor to the shroud, wherein the pillars secure the shroud in close proximity to the impeller. Various design features of the pump may be optimized to reduce hemolysis, such as, but not limited to, inlet length, impeller design, pillar angle, and outlet design.
    Type: Application
    Filed: January 31, 2022
    Publication date: July 21, 2022
    Inventors: Sascha Gross-Hardt, Tim Kaufman, William L. Clifton, Benjamin A. Hertzog, Jason J. Heuring
  • Patent number: 11235138
    Abstract: A non-occluding intravascular pump comprises a shroud providing an inlet for incoming blood flow and an outlet for outgoing blood flow, wherein the shroud is a cylindrical housing; an impeller positioned within shroud, wherein a central axis of the shroud and impeller are shared; a motor coupled to the impeller, wherein the motor rotates the impeller to causes blood to be drawn through the inlet and output to the outlet, and the motor is centrally disposed and shares the central axis with the shroud and the impeller; and a plurality of pillars coupling the motor to the shroud, wherein the pillars secure the shroud in close proximity to the impeller. Various design features of the pump may be optimized to reduce hemolysis, such as, but not limited to, inlet length, impeller design, pillar angle, and outlet design.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: February 1, 2022
    Assignee: PROCYRION, INC.
    Inventors: Sascha Gross-Hardt, Tim Kaufmann, William L. Clifton, Benjamin A. Hertzog, Jason J. Heuring
  • Patent number: 10500323
    Abstract: Fluid pressure or flow in a human body may be adjusted with circulation or perfusion systems and methods. The system may include a first pump implantable in a chamber or vessel of the human body, and a plurality of struts connected to a housing of the first pump, wherein the struts secure the first pump in a desired location of the chamber or vessel. The system may also include one or more flow modification elements disposed on the first pump, where the flow modification elements direct flow to a desired organ or a desired vessel to adjust pressure or flow as desired.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: December 10, 2019
    Assignee: PROCYRION, INC.
    Inventors: Jason J. Heuring, William L. Clifton, Benjamin A. Hertzog, Michael P. Cuchiara, Reynolds M. Delgado, III
  • Patent number: 10443738
    Abstract: Systems and methods for providing a magnetic fluid (MF) seal suitable for a fluid environment may provide a shaft and a magnet that is cylindrical or ring-shaped. A magnetic fluid may be present between the magnet and shaft. Additionally, pole pieces may also be provided, which are also cylindrical or ring-shaped. These pole pieces are positioned on the shaft so the magnet is sandwiched between the pole pieces. The magnet, pole pieces, and shaft, if magnetic, may attract and retain the magnetic fluid in an annular gap or region between the shaft and the magnet and/or the pole pieces. The magnetic fluid in the annular gap serves as a seal or barrier that prevents fluid from passing through when pressure is below a predetermined level.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: October 15, 2019
    Assignee: PROCYRION, INC.
    Inventors: Christopher A. Durst, Jason J. Heuring, Benjamin A. Hertzog, Yoshinori Mitamura
  • Publication number: 20170363210
    Abstract: Systems and methods for providing a magnetic fluid (MF) seal suitable for a fluid environment may provide a shaft and a magnet that is cylindrical or ring-shaped. A magnetic fluid may be present between the magnet and shaft. Additionally, pole pieces may also be provided, which are also cylindrical or ring-shaped. These pole pieces are positioned on the shaft so the magnet is sandwiched between the pole pieces. The magnet, pole pieces, and shaft, if magnetic, may attract and retain the magnetic fluid in an annular gap or region between the shaft and the magnet and/or the pole pieces. The magnetic fluid in the annular gap serves as a seal or barrier that prevents fluid from passing through when pressure is below a predetermined level.
    Type: Application
    Filed: June 19, 2017
    Publication date: December 21, 2017
    Applicant: Procyrion, Inc.
    Inventors: Christopher A. Durst, Jason J. Heuring, Benjamin A. Hertzog, Yoshinori Mitamura
  • Publication number: 20170112986
    Abstract: Fluid pressure or flow in a human body may be adjusted with circulation or perfusion systems and methods. The system may include a first pump implantable in a chamber or vessel of the human body, and a plurality of struts connected to a housing of said first pump, wherein the struts secure the first pump in a desired location of the chamber or vessel. The system may also include one or more flow modification elements disposed on the first pump, where the flow modification elements direct flow to a desired organ or a desired vessel to adjust pressure or flow as desired.
    Type: Application
    Filed: January 3, 2017
    Publication date: April 27, 2017
    Applicant: Procyrion, Inc.
    Inventors: Jason J. HEURING, William L. CLIFTON, Benjamin A. HERTZOG, Michael P. CUCHIARA, Reynolds M. DELGADO, III
  • Publication number: 20170087288
    Abstract: A non-occluding intravascular pump comprises a shroud providing an inlet for incoming blood flow and an outlet for outgoing blood flow, wherein the shroud is a cylindrical housing; an impeller positioned within shroud, wherein a central axis of the shroud and impeller are shared; a motor coupled to the impeller, wherein the motor rotates the impeller to causes blood to be drawn through the inlet and output to the outlet, and the motor is centrally disposed and shares the central axis with the shroud and the impeller; and a plurality of pillars coupling the motor to the shroud, wherein the pillars secure the shroud in close proximity to the impeller. Various design features of the pump may be optimized to reduce hemolysis, such as, but not limited to, inlet length, impeller design, pillar angle, and outlet design.
    Type: Application
    Filed: September 26, 2016
    Publication date: March 30, 2017
    Applicant: Procyrion, Inc.
    Inventors: Sascha Groß-Hardt, Tim Kaufmann, William L. Clifton, Benjamin A. Hertzog, Jason J. Heuring
  • Patent number: 9572915
    Abstract: Fluid pressure or flow in a human body may be adjusted with circulation or perfusion systems and methods. The system may include a first pump implantable in a chamber or vessel of the human body, and a plurality of struts connected to a housing of said first pump, wherein the struts secure the first pump in a desired location of the chamber or vessel. The system may also include one or more flow modification elements disposed on the first pump, where the flow modification elements direct flow to a desired organ or a desired vessel to adjust pressure or flow as desired.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: February 21, 2017
    Assignee: PROCYRION, INC.
    Inventors: Jason J. Heuring, William L. Clifton, Benjamin A. Hertzog, Michael P. Cuchiara, Reynolds M. Delgado, III
  • Publication number: 20140128659
    Abstract: Fluid pressure or flow in a human body may be adjusted with circulation or perfusion systems and methods. The system may include a first pump implantable in a chamber or vessel of the human body, and a plurality of struts connected to a housing of said first pump, wherein said struts secure the first pump in a desired location of said chamber or vessel. The system may also include one or more flow modification elements disposed on said first pump, where said flow modification elements direct flow to a desired organ or a desired vessel to adjust pressure or flow as desired.
    Type: Application
    Filed: March 26, 2013
    Publication date: May 8, 2014
    Applicant: Procyrion, Inc.
    Inventors: Jason J. Heuring, William L. Clifton, Benjamin A. Hertzog, Michael P. Cuchiara, Reynolds M. Delgado, III
  • Publication number: 20030077317
    Abstract: Methods and compositions are provided for enhancing the bioadhesive properties of polymers used in drug delivery systems. The bioadhesive properties of a base polymer are enhanced by incorporating a short chain polymer with one or more free carboxylic groups into the base polymer to enhance the ability of the base polymer to adhere to a tissue surface such as a mucosal membrane. The short chain polymers can be incorporated within a wide range of base polymers including proteins, polysaccharides and synthetic biocompatible polymers. In one embodiment, short chain polymers can be incorporated within base polymers used to form or coat drug delivery systems, such as microspheres, which contain a drug or diagnostic agent. The short chain polymers can either be solubilized and blended with the base polymer before manufacture or else used as a coating with base polymers over existing systems.
    Type: Application
    Filed: May 15, 2002
    Publication date: April 24, 2003
    Applicant: Brown University Research Foundation
    Inventors: Camilla A. Santos, Jules S. Jacob, Benjamin A. Hertzog, Gerardo P. Carino, Edith Mathiowitz
  • Publication number: 20010000142
    Abstract: Methods and compositions are provided for enhancing the bioadhesive properties of polymers used in drug delivery systems. The bioadhesive properties of a polymer are enhanced by incorporating an anhydride oligomer into the polymer to enhance the ability of the polymer to adhere to a tissue surface such as a mucosal membrane. Anhydride oligomers which enhance the bioadhesive properties of a polymer include oligomers synthesized from dicarboxylic acid monomers, preferably those found in Krebs glycolysis cycle, especially fumaric acid. The oligomers can be incorporated within a wide range of polymers including proteins, polysaccharides and synthetic biocompatible polymers. In one embodiment, anhydride oligomers can be incorporated within polymers used to form or coat drug delivery systems, such as microspheres, which contain a drug or diagnostic agent. The oligomers can either be solubilized and blended with the polymer before manufacture or else used as a coating with polymers over existing systems.
    Type: Application
    Filed: December 4, 2000
    Publication date: April 5, 2001
    Inventors: Camila A. Santos, Jules S. Jacob, Benjamin A. Hertzog, Gerardo P. Carino, Edith Mathiowitz
  • Patent number: 6156348
    Abstract: Methods and compositions are provided for enhancing the bioadhesive properties of polymers used in drug delivery systems. The bioadhesive properties of a polymer are enhanced by incorporating an anhydride oligomer into the polymer to enhance the ability of the polymer to adhere to a tissue surface such as a mucosal membrane. Anhydride oligomers which enhance the bioadhesive properties of a polymer include oligomers synthesized from dicarboxylic acid monomers, preferably those found in Krebs glycolysis cycle, especially fumaric acid. The oligomers can be incorporated within a wide range of polymers including proteins, polysaccharides and synthetic biocompatible polymers. In one embodiment, anhydride oligomers can be incorporated within polymers used to form or coat drug delivery systems, such as microspheres, which contain a drug or diagnostic agent. The oligomers can either be solubilized and blended with the polymer before manufacture or else used as a coating with polymers over existing systems.
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: December 5, 2000
    Assignee: Brown University Research Foundation
    Inventors: Camila A. Santos, Jules S. Jacob, Benjamin A. Hertzog, Gerardo P. Carino, Edith Mathiowitz
  • Patent number: 5955096
    Abstract: Methods and compositions are provided for enhancing the bioadhesive properties of polymers used in drug delivery systems. The bioadhesive properties of a polymer are enhanced by incorporating an anhydride oligomer into the polymer to enhance the ability of the polymer to adhere to a tissue surface such as a mucosal membrane. Anhydride oligomers which enhance the bioadhesive properties of a polymer include oligomers synthesized from dicarboxylic acid monomers, preferably those found in Krebs glycolysis cycle, especially fumaric acid. The oligomers can be incorporated within a wide range of polymers including proteins, polysaccharides and synthetic biocompatible polymers. In one embodiment, anhydride oligomers can be incorporated within polymers used to form or coat drug delivery systems, such as microspheres, which contain a drug or diagnostic agent. The oligomers can either be solubilized and blended with the polymer before manufacture or else used as a coating with polymers over existing systems.
    Type: Grant
    Filed: June 25, 1996
    Date of Patent: September 21, 1999
    Assignee: Brown University Research Foundation
    Inventors: Camila A. Santos, Jules S. Jacob, Benjamin A. Hertzog, Gerardo P. Carino, Edith Mathiowitz