Patents by Inventor Andrew Kohm

Andrew Kohm 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: 9066769
    Abstract: Systems and methods for treating vertebral compression fractures are discussed. In an embodiment, a method includes mixing bone cement precursors thereby causing a first chemical curing reaction characterized by a first time-viscosity profile, controllably applying energy to the bone cement from an external source to modify the first time-viscosity profile to a second time-viscosity profile, and injecting the cement into bone at a substantially constant viscosity greater than about 1000 Pa·s to greater than about 5000 Pa·s over an extended working time. In another embodiment, a bone cement injector system is provided that includes a first handle component that is detachably coupled to a second sleeve component having a distal end for positioning in bone and a flow channel extending through the first and second components. The system includes first and second thermal energy emitters for delivering energy to bone cement flows in a flow channel portion in the first and second components, respectively.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: June 30, 2015
    Assignee: DFINE, Inc.
    Inventors: Csaba Truckai, Robert Luzzi, Andrew Kohm, John H. Shadduck
  • Publication number: 20140350542
    Abstract: This invention relates to medical methods, instruments and systems for creating a controlled lesion using temperature to control the growth of the lesion. The treatment can be used in any tissue area and is particularly useful in or around a vertebral body. The features relating to the methods and devices described herein can be applied in any region of soft or hard tissue including bone or hard tissue.
    Type: Application
    Filed: August 6, 2014
    Publication date: November 27, 2014
    Applicant: DFINE, INC.
    Inventors: Steve KRAMER, Kirti P. KAMDAR, Andrew KOHM, Robert POSER, Aaron GERMAIN
  • Publication number: 20140323662
    Abstract: A system for use in bone cement preparation can include a chamber for intermixing a liquid monomer and solid polymer components, a container, a vacuum channel, and a filter. The mixing chamber can be configured to hold a non-liquid, polymer powder component of a bone cement. The container can be configured to hold a liquid component of the bone cement. The system can have a first interface disposed between the mixing chamber and the container and a second interface disposed between the mixing chamber and the vacuum channel. The second interface can to receive and position the filter between the mixing chamber and the vacuum channel.
    Type: Application
    Filed: July 11, 2014
    Publication date: October 30, 2014
    Inventors: Harry Kwan, Andrew Kohm, Csaba Truckai
  • Patent number: 8864760
    Abstract: This invention relates to medical methods, instruments and systems for creating a controlled lesion using temperature to control the growth of the lesion. The treatment can be used in any tissue area and is particularly useful in or around a vertebral body. The features relating to the methods and devices described herein can be applied in any region of soft or hard tissue including bone or hard tissue.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: October 21, 2014
    Assignee: Dfine, Inc.
    Inventors: Steve Kramer, Kirti P. Kamdar, Andrew Kohm, Robert Poser, Aaron Germain
  • Patent number: 8777479
    Abstract: A system for use in bone cement preparation can include a chamber for intermixing a liquid monomer and solid polymer components, a container, a vacuum channel, and a filter. The mixing chamber can be configured to hold a non-liquid, polymer powder component of a bone cement. The container can be configured to hold a liquid component of the bone cement. The system can have a first interface disposed between the mixing chamber and the container and a second interface disposed between the mixing chamber and the vacuum channel. The second interface can to receive and position the filter between the mixing chamber and the vacuum channel. The vacuum channel can direct a partial vacuum to draw the liquid component from the container into the non-liquid component in the mixing chamber to intermix the components and to thereby provide a settable bone cement.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: July 15, 2014
    Assignee: DFINE, Inc.
    Inventors: Harry Kwan, Andrew Kohm, Csaba Truckai
  • Publication number: 20140163566
    Abstract: Devices and method discussed for device for delivering a pressurized substance to an opening in bone within a vertebral column, useful to provide access to structures in the vertebral so that a substance, such as bone cement can be delivered through a lumen or portal or for providing access to the opening in bone by a separate instrument.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 12, 2014
    Applicant: DFINE, INC.
    Inventors: Christopher U. PHAN, Andrew KOHM, Robert POSER, Kirti P. KAMDAR
  • Publication number: 20140163519
    Abstract: A medical system and method can used to treat a bone. The system and method can include the preparation of bone cement to be used in the treatment. A non-liquid component and a liquid component can be combined to form a bone cement. A vacuum system can be used to saturate the non-liquid component with the liquid component. The bone cement and/or components can be heated and/or cooled.
    Type: Application
    Filed: July 31, 2013
    Publication date: June 12, 2014
    Applicant: DFINE, INC.
    Inventors: John H. Shadduck, Andrew Kohm
  • Publication number: 20140031450
    Abstract: The present disclosure relates to bone cement formulations that have an extended working time for use in vertebroplasty procedures and other osteoplasty procedures together with cement injectors that include energy delivery systems for on-demand control of cement viscosity and flow parameters. The bone cement formulations may include a liquid component having at least one monomer and a non-liquid component including polymer particles and benzoyl peroxide (BPO). The non-liquid component may be further configured to allow controlled exposure of the BPO to the liquid monomer so as to enable control of the viscosity of the bone cement composition.
    Type: Application
    Filed: June 19, 2013
    Publication date: January 30, 2014
    Inventors: Csaba Truckai, Andrew Kohm, John Shadduck, Robert Luzzi
  • Patent number: 8591507
    Abstract: This invention relates to medical methods, instruments and systems for creating a controlled lesion using temperature to control the growth of the lesion. The treatment can be used in any tissue area and is particularly useful in or around a vertebral body. The features relating to the methods and devices described herein can be applied in any region of soft or hard tissue including bone or hard tissue.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: November 26, 2013
    Assignee: Dfine, Inc.
    Inventors: Steve Kramer, Kirti P. Kamdar, Andrew Kohm, Robert Poser, Aaron Germain
  • Publication number: 20130308416
    Abstract: A system for use in combining two part preparations, such as bone cement, can include a chamber for intermixing liquid and powder components, a container, a vacuum channel, and a filter. The mixing chamber can be configured to hold a non-liquid, polymer powder component of a bone cement. The container can be configured to hold a liquid component of the bone cement. The vacuum channel can direct a partial vacuum to draw the liquid component from the container into the non-liquid component in the mixing chamber to intermix the components and to thereby provide a settable bone cement.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 21, 2013
    Applicant: DFINE, INC.
    Inventors: Christopher U. Phan, Andrew Kohm
  • Patent number: 8562620
    Abstract: Systems, bone cements and methods for treating vertebral compression fractures can utilize a bone cement comprising of a mixable liquid monomer component and a non-liquid component including polymer particles, wherein the non-liquid component is configured for controlled exposure to the liquid monomer over a setting interval of the bone cement. In a method of use, liquid and non-liquid components are mixed, and the bone cement is injected into bone wherein a lengthened setting interval is provided in which the mixture is configured for a flowability that prevents unwanted extravasation.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: October 22, 2013
    Assignee: Dfine, Inc.
    Inventors: Csaba Truckai, Andrew Kohm, John Shadduck
  • Publication number: 20130261615
    Abstract: This invention relates to medical methods, instruments and systems for creating a controlled lesion using temperature to control the growth of the lesion. The treatment can be used in any tissue area and is particularly useful in or around a vertebral body. The features relating to the methods and devices described herein can be applied in any region of soft or hard tissue including bone or hard tissue.
    Type: Application
    Filed: March 11, 2013
    Publication date: October 3, 2013
    Applicant: DFINE, INC.
    Inventors: Steve KRAMER, Kirti P. KAMDAR, Andrew KOHM, Robert POSER, Aaron GERMAIN
  • Publication number: 20130261621
    Abstract: This invention relates to medical methods, instruments and systems for creating a controlled lesion using temperature to control the growth of the lesion. The treatment can be used in any tissue area and is particularly useful in or around a vertebral body. The features relating to the methods and devices described herein can be applied in any region of soft or hard tissue including bone or hard tissue.
    Type: Application
    Filed: January 31, 2013
    Publication date: October 3, 2013
    Applicant: DFINE, INC.
    Inventors: Steve KRAMER, Kirti P. KAMDAR, Andrew KOHM, Robert POSER, Aaron GERMAIN
  • Patent number: 8540723
    Abstract: A medical system and method can used to treat a bone. The system and method can include the preparation of bone cement to be used in the treatment. A non-liquid component and a liquid component can be combined to form a bone cement. A vacuum system can be used to saturate the non-liquid component with the liquid component. The bone cement and/or components can be heated and/or cooled.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: September 24, 2013
    Assignee: DFINE, Inc.
    Inventors: John H. Shadduck, Andrew Kohm
  • Patent number: 8487021
    Abstract: The present disclosure relates to bone cement formulations that have an extended working time for use in vertebroplasty procedures and other osteoplasty procedures together with cement injectors that include energy delivery systems for on-demand control of cement viscosity and flow parameters. The bone cement formulations may include a liquid component having at least one monomer and a non-liquid component including polymer particles and benzoyl peroxide (BPO). The non-liquid component may be further configured to allow controlled exposure of the BPO to the liquid monomer so as to enable control of the viscosity of the bone cement composition.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: July 16, 2013
    Assignee: DFINE, Inc.
    Inventors: Csaba Truckai, Andrew Kohm, John Shadduck, Robert Luzzi
  • Patent number: 8403937
    Abstract: Devices and methods for performing a procedure within a spine are disclosed herein. In one embodiment, a method includes expanding an expandable member to move a tissue portion and form a cavity within an interior of a bone-related structure. At least a portion of the cavity is filled with a filler material while simultaneously withdrawing a medium from the expandable member at a predefined ratio such that the tissue portion substantially maintains its moved position. In some embodiments, the predefined ratio is 1:1. In another embodiment, a method includes expanding an expandable member to move a tissue portion and form a cavity within an interior of an intervertebral disc. At least a portion of the cavity is filled with a filler material while substantially maintaining the moved position of the tissue portion.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: March 26, 2013
    Assignee: Kyphon Sarl
    Inventors: Jeffrey D. Schwardt, Brian Donovan, Andrew Kohm, Hugues F. Malandain, Erika I. Palmer, Mike Smith, Eric Wong
  • Patent number: 8372115
    Abstract: A bone support and/or barrier device and having an implantable structure including an outer surface, an inner surface, a first bone contact portion, and a second bone contact portion. The structure is collapsible to an undeployed configuration capable of percutaneous insertion to the interior of a bone and expandable to a deployed configuration in the bone. In the deployed configuration, the first bone contact portion contacts a first portion of the bone, and the second bone contact portion contacts a second portion of the bone such that a load placed on the first portion of the bone is transferred through the implantable structure to the second portion of the bone. The implantable structure includes a barrier material adapted to restrict bone filler material inserted into the bone adjacent the inner surface of the structure from flowing to the outer surface of the structure. A method is also disclosed.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: February 12, 2013
    Assignee: Kyphon SARL
    Inventors: Andrew Kohm, Janna Clark, Samuel Lee, Thomas A. Slater
  • Patent number: 8348976
    Abstract: Devices and methods for performing a procedure within a spine are disclosed herein. In one embodiment, a method includes coupling a first implant to a pedicle of a first vertebra of a spinal column such that at least a portion of the first implant is disposed between a first spinous process and a second spinous process of the spinal column. A second implant is coupled to a pedicle of a second vertebra of the spinal column. At least a portion of an outer surface of the first implant is configured to contact at least a portion of an outer surface of the second implant when the spinal column is in extension. The outer surface of the first implant and the outer surface of the second implant being at a spaced distance from each other when the spinal column is in flexion.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: January 8, 2013
    Assignee: Kyphon SARL
    Inventors: Andrew Kohm, Hugues F. Malandain, Thomas A. Slater
  • Patent number: 8114131
    Abstract: Medical devices and related methods for the treatment of spinal conditions are described herein. In one embodiment, an apparatus includes a support member configured to be implanted at least partially in a space between adjacent spinous processes and an actuator coupled to the support member. The apparatus also includes an elongate retention member having a first end coupled to the actuator and a second end coupled to either the support member or the actuator. The actuator is configured to be rotated such that the first end moves from a first location at a first distance from the second end, to a second location at a second distance from the second end. At least a portion of the elongate retention member is disposed at a non-zero distance from an outer surface of the support member when the first end of the elongate retention member is at its second location.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: February 14, 2012
    Assignee: Kyphon SARL
    Inventors: Andrew Kohm, Hugues F. Malandain
  • Publication number: 20120004728
    Abstract: A bone support and/or barrier device, system, kit, and method can include an implantable structure having an outer surface, an inner surface, a first bone contact portion, and a second bone contact portion. The structure can be collapsible to an undeployed configuration capable of percutaneous insertion to the interior of a bone and expandable to a deployed configuration in the bone. In the deployed configuration, the first bone contact portion can contact a first portion of the bone, and the second bone contact portion can contact a second portion of the bone such that a load placed on the first portion of the bone can be transferred through the implantable structure to the second portion of the bone. The implantable structure can include a barrier material adapted to restrict a bone filler material inserted into the bone adjacent the inner surface of the structure from flowing to the outer surface of the structure.
    Type: Application
    Filed: September 13, 2011
    Publication date: January 5, 2012
    Applicant: Hyphon Sarl
    Inventors: Andrew Kohm, Janna Clark, Samuel Lee, Thomas A. Slater