Patents Assigned to Doctor's Research Group, Inc.
  • Patent number: 8337497
    Abstract: A method for sternal closure of a separated sternum includes applying an adhesive to a portion of an incision between at least a first sternum portion and at least a second sternum portion and maintaining the first sternum portion proximate to the second sternum portion until the adhesive has bonded with the first sternum portion and the second sternum portion. The adhesive may be applied over substantially the entire length of the incision or may be applied in intervals. The method for sternal closure may also include compressing the first sternum portion and the second sternum portion together using one or more compression devices and introducing adhesive to contact regions where the compressive devices contact the sternum. The method may also include cutting an interface feature in the first and second sternum portions or spanning the incision between the first and second interface portions with a structural support.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: December 25, 2012
    Assignee: Doctors Research Group, Inc.
    Inventors: Richard J. Deslauriers, Eric Kolb
  • Patent number: 8338498
    Abstract: A bone defect filler for implantation in a bone defect of a patient includes a particulate polymer distributed within a polymeric binder. The particulate polymer includes a plurality of particles, which may have substantially the same material composition as the polymeric binder. The particles of the particulate polymer may be formed in a variety of shapes and/or sizes to provide the bone defect filler with improved pore interconnectivity, material expansion and contamination characteristics, while maintaining sufficient mechanical strength and handling characteristics for bone repair applications. The bone defect filler also provides the flexibility to be molded or shaped in situ to fill the bone defect.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: December 25, 2012
    Assignee: Doctors Research Group, Inc.
    Inventors: Richard J. Deslauriers, Eric Kolb, John Boxberger
  • Patent number: 8211458
    Abstract: Methods of performing medical procedures, and methods of making bone-growth-promoting compositions useful in performing medical procedures are provided. Apparatus useful both in methods of performing medical procedures, and in methods of making bone-growth-promoting compositions useful in performing medical procedures, are provided. The bone-growth-promoting compositions made according to the disclosed methods are biocompatible, and are adapted to stimulate bone growth when positioned in contact with, or in the vicinity of, a bone of a mammal.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: July 3, 2012
    Assignee: Doctor's Research Group, Inc.
    Inventors: Richard Joseph Deslauriers, Aisa Sendijarevic
  • Publication number: 20120065641
    Abstract: A bone repair apparatus includes a partially polymerized biocompatible adhesive provided in a state wherein polymerization of the biocompatible adhesive is substantially suspended. A method for repairing a bone defect includes preparing the biocompatible adhesive, suspending polymerization of the biocompatible adhesive prior to full cure, delivering the biocompatible adhesive to the bone defect while polymerization is substantially suspended and accelerating polymerization of the biocompatible adhesive to achieve full cure. The method provides an implanted biocompatible adhesive with a malleable osteoconductive structure without compromising the physical characteristics of the biocompatible adhesive, thereby improving handling and delivery of the bone adhesive.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 15, 2012
    Applicant: Doctors Research Group, Inc.
    Inventors: Richard J. Deslauriers, Eric Kolb, John A. Tomich, John Boxberger, Naresh Akkarapaka
  • Publication number: 20120046698
    Abstract: A pedicle fastener for implantation during a spinal fusion procedure includes a head and shank, the shank being connectable to the head and extending outwardly therefrom. The shank may include a shielding feature formed therein for accommodating an adhesive augmenting the pedicle fastener and improving implantation strength and stiffness thereof. A method for implanting the pedicle fastener includes forming a hole in a pedicle, applying the adhesive to the hole and sliding the shank of the pedicle fastener into the hole. The adhesive may also be applied to the hole through direct injection, injection through a longitudinal cannula formed in the pedicle fastener or by depositing the adhesive on the shank and inserting the shank into the hole. Polymerization of the adhesive may be accelerated by heating the pedicle fastener.
    Type: Application
    Filed: August 18, 2010
    Publication date: February 23, 2012
    Applicant: Doctors Research Group, Inc.
    Inventors: Eric Kolb, Naresh Akkarapaka, John Boxberger, John Tomich
  • Publication number: 20120035610
    Abstract: A bone adhesive application device has a pliable structure with an application surface upon which a bone adhesive may be applied. The application surface has a surface energy substantially equal to or less than a surface energy of the bone adhesive to reduce adhesion between the bone adhesive and the bone adhesive application device. The bone adhesive application device may be included in a kit for repairing bone defects having a bone adhesive formed from a reactive biocompatible polyurethane material. The bone adhesive may be applied to a bone defect by positioning the pliable structure over at least a portion of the bone defect, delivering the bone adhesive to the bone defect and removing the pliable structure from the bone adhesive.
    Type: Application
    Filed: August 6, 2010
    Publication date: February 9, 2012
    Applicant: Doctors Research Group, Inc.
    Inventors: Richard J. Deslauriers, Steven Joseph Beer, Eric Kolb, Joseph Jannetty
  • Publication number: 20110201704
    Abstract: A bone defect filler for implantation in a bone defect of a patient includes a particulate polymer distributed within a polymeric binder. The particulate polymer includes a plurality of particles, which may have substantially the same material composition as the polymeric binder. The particles of the particulate polymer may be formed in a variety of shapes and/or sizes to provide the bone defect filler with improved pore interconnectivity, material expansion and contamination characteristics, while maintaining sufficient mechanical strength and handling characteristics for bone repair applications. The bone defect filler also provides the flexibility to be molded or shaped in situ to fill the bone defect.
    Type: Application
    Filed: December 7, 2010
    Publication date: August 18, 2011
    Applicant: Doctors Research Group, Inc.
    Inventors: Richard J. Deslauriers, Eric Kolb, John Boxberger, Timothy Ganey
  • Publication number: 20110201711
    Abstract: A bone defect filler for implantation in a bone defect of a patient includes a particulate polymer distributed within a polymeric binder. The particulate polymer includes a plurality of particles, which may have substantially the same material composition as the polymeric binder. The particles of the particulate polymer may be formed in a variety of shapes and/or sizes to provide the bone defect filler with improved pore interconnectivity, material expansion and contamination characteristics, while maintaining sufficient mechanical strength and handling characteristics for bone repair applications. The bone defect filler also provides the flexibility to be molded or shaped in situ to fill the bone defect.
    Type: Application
    Filed: February 18, 2010
    Publication date: August 18, 2011
    Applicant: Doctors Research Group, Inc.
    Inventors: Richard J. Deslauriers, Eric Kolb, John Boxberger
  • Patent number: 7964207
    Abstract: Methods of performing medical procedures, and methods of making bone-growth-promoting compositions useful in performing medical procedures are provided. Apparatus useful both in methods of performing medical procedures, and in methods of making bone-growth-promoting compositions useful in performing medical procedures, are provided. The bone-growth-promoting compositions made according to the disclosed methods are biocompatible, and are adapted to stimulate bone growth when positioned in contact with, or in the vicinity of, a bone of a mammal.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: June 21, 2011
    Assignee: Doctor's Research Group, Inc.
    Inventors: Richard Deslauriers, Aisa Sendijarevic
  • Publication number: 20110082497
    Abstract: A method for closing a sternum separated into at least a first sternum portion and a second sternum portion includes preparing at least one cut surface of at least one of the first or second sternum portions to have an adhesive applied thereon. The adhesive is applied to at least a portion of the at least one cut surface. The at least one cut surface is approximated to a second cut surface of the other of the first sternum portion or second sternum portion. As the adhesive cures, it bonds with the first cut surface and the second cut surface. Preparing the at least one cut surface may remove contaminants that could inhibit adhesion of the adhesive. The adhesive may be applied through adhesive injection holes formed along an incision separating the first and second sternum portions. Devices for preparing the cut surfaces and applying the adhesive are also provided.
    Type: Application
    Filed: August 24, 2010
    Publication date: April 7, 2011
    Applicant: Doctors Research Group, Inc.
    Inventors: Richard J. Deslauriers, Eric Kolb
  • Publication number: 20110082498
    Abstract: A method for sternal closure of a separated sternum includes applying an adhesive to a portion of an incision between at least a first sternum portion and at least a second sternum portion and maintaining the first sternum portion proximate to the second sternum portion until the adhesive has bonded with the first sternum portion and the second sternum portion. The adhesive may be applied over substantially the entire length of the incision or may be applied in intervals. The method for sternal closure may also include compressing the first sternum portion and the second sternum portion together using one or more compression devices and introducing adhesive to contact regions where the compressive devices contact the sternum. The method may also include cutting an interface feature in the first and second sternum portions or spanning the incision between the first and second interface portions with a structural support.
    Type: Application
    Filed: October 7, 2009
    Publication date: April 7, 2011
    Applicant: DOCTORS RESEARCH GROUP, INC.
    Inventors: Richard J. Deslauriers, Eric Kolb
  • Publication number: 20110015743
    Abstract: A multi-density polymeric interbody spacer formed from biocompatible material for osteoconductivity includes multiple density regions of different porosity to provide both strength and osteoconductivity. An interface region is formed between the density regions to provide both direct adhesion and mechanical interlocking between the different density regions to increase the strength of the multi-density polymeric interbody spacer. A method for forming the multi-density polymeric interbody spacer includes curing a first density region to achieve a first target porosity. A second density region may then be molded to the first density region to achieve a second target porosity. A portion of the second density region partially flows into pores of the first density region, providing direct adhesion and mechanical interlocking between the first and second density regions.
    Type: Application
    Filed: July 14, 2009
    Publication date: January 20, 2011
    Applicant: DOCTORS RESEARCH GROUP, INC.
    Inventors: Richard J. Deslauriers, Joseph Jannetty, Eric Kolb, John A. Tomich, Naresh Akkarapaka
  • Publication number: 20110012280
    Abstract: A multi-density polymeric interbody spacer formed from biocompatible material for osteoconductivity includes multiple density regions of different porosity to provide both strength and osteoconductivity. An interface region is formed between the density regions to provide both direct adhesion and mechanical interlocking between the different density regions to increase the strength of the multi-density polymeric interbody spacer. A method for forming the multi-density polymeric interbody spacer includes curing a first density region to achieve a first target porosity. A second density region may then be molded to the first density region to achieve a second target porosity. A portion of the second density region partially flows into pores of the first density region, providing direct adhesion and mechanical interlocking between the first and second density regions.
    Type: Application
    Filed: July 14, 2009
    Publication date: January 20, 2011
    Applicant: DOCTORS RESEARCH GROUP, INC.
    Inventors: Richard J. Deslauriers, Joseph Jannetty, Eric Kolb, John A. Tomich, Naresh Akkarapaka