Patents by Inventor Warren W. Johnston

Warren W. Johnston 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: 8795146
    Abstract: A brachytherapy implant includes a plurality of protrusions to reduce a tendency of the implant to migrate and rotate within a patient's body after implantation. Embodiments of the present invention are directed to spacers that resist migration and rotation. This abstract is not intended to be a complete description of the invention.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: August 5, 2014
    Assignee: Eckert & Ziegler Bebig S.A.
    Inventors: Gary A. Lamoureux, James Matons, Warren W. Johnston, Matthew Bouffard, Warren Rice
  • Patent number: 8366598
    Abstract: A therapeutic strand implant, for use in brachytherapy and deliverable to an implant site by way of a needle, includes a plurality of radioactive sources, and a polymeric material molded to encapsulate the radioactive sources. A space is defined by the polymeric material between each adjacent pair of the radioactive sources. A plurality of protrusions is defined by an outer surface of the encapsulating polymeric material.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: February 5, 2013
    Assignee: Biocompatibles UK Limited
    Inventors: Gary A. Lamoureux, James Matons, Warren W. Johnston, Matthew Bouffard, Warren Rice
  • Patent number: 8192345
    Abstract: In an embodiment, a brachytherapy device includes a cartridge adapted for use with a brachytherapy applicator. A plurality of therapeutic members are stacked parallel to one another within the cartridge. Each therapeutic member includes a radioactive seed that is at least partially encapsulated by a polymeric material. Additionally, each therapeutic member can include at least one protrusion on an outer surface of the encapsulating polymeric material to reduce a tendency for the therapeutic member to migrate and rotate within a patient's body after the therapeutic member is implanted.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: June 5, 2012
    Assignee: Biocompatibles, UK
    Inventors: Gary A. Lamoureux, James Matons, Warren W. Johnston, Matthew Bouffard, Warren Rice
  • Patent number: 8114007
    Abstract: In an embodiment a therapeutic member includes a solitary radioactive seed. The seed includes a metallic housing with radioactive material contained within the metallic housing. The metallic housing has a first longitudinal end and a second longitudinal end and a longitudinal length between the first and second longitudinal ends. A polymeric material is molded to completely and monolithically encapsulate the metallic housing of the solitary radioactive seed. The implantable therapeutic member is adapted to be implanted into patient tissue using a hollow needle. A portion of the molded polymeric material extends from one of the first and second longitudinal ends of the metallic housing to reduce a tendency of the seed to migrate and rotate within a patient's body after implantation of the member.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: February 14, 2012
    Assignee: Biocompatibles UK Limited
    Inventors: Gary A. Lamoureux, James Matons, Warren W. Johnston, Matthew Bouffard, Warren Rice
  • Patent number: 8021291
    Abstract: In an embodiment, an implantable marker, which is adapted to be implanted into patient tissue using a hollow needle, includes a marker body including a radiopaque material and a polymeric material that encapsulates at least a portion of the marker body. In an embodiment, an outer surface of the encapsulating material includes one or more protrusions to reduce a tendency of the marker to migrate and rotate within a patient's body after implantation.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: September 20, 2011
    Assignee: Biocompatibles UK Limited
    Inventors: Gary A. Lamoureux, James Matons, Warren W. Johnston, Matthew Bouffard, Warren Rice
  • Patent number: 7988611
    Abstract: In one embodiment an after-loader for providing an implant to a hollow needle, the after-loader comprising a body having a distal end including a bevel for receiving a hub of a seed lock needle, and a bore therethrough for receiving a hub of a MICKĀ® needle; a proximal end having a funnel shaped opening; a shield adapted to be provided over the body; and wherein the distal end further includes a taper along a portion of a distance from the distal end to the proximal end for providing a friction fit to a shield. This abstract is not intended to be a complete description of the invention.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: August 2, 2011
    Assignee: Biocompatibles UK Limited
    Inventors: Gary A. Lamoureux, Warren W. Johnston
  • Patent number: 7985172
    Abstract: After-loader devices, kits, and methods for using the same are provided. Such after-loader devices are useful for loading implants into hollow needles, especially after the needles are inserted into patient tissue. The after-loader devices can be pre-loaded with implants, before the after-loaders are connected to hubs of hollow needles, or loaded thereafter.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: July 26, 2011
    Assignee: Biocompatibles UK Limited
    Inventors: Gary A. Lamoureux, Warren W. Johnston, Anthony Viselli, Paul Walker, Edward Bleich
  • Patent number: 7878964
    Abstract: Echogenic strands and spacers are provided for use in brachytherapy. Methods of making the strands and spacers are also provided. An echogenic strand for use in brachytherapy and a method for making the strand includes an encapsulating material, a seed disposed within the encapsulating material, and a spacer disposed within the encapsulating material and arranged adjacent to the seed. The spacer has an axial length, an outer surface and an inner surface. A chamber is formed along the axial length, the chamber being defined by the inner surface. The chamber is adapted to improve ultrasound visibility relative to the spacer.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: February 1, 2011
    Assignee: Biocompatibles UK Limited
    Inventors: Gary A. Lamoureux, Warren W. Johnston
  • Publication number: 20100210892
    Abstract: A brachytherapy implant includes a plurality of protrusions to reduce a tendency of the implant to migrate and rotate within a patient's body after implantation. Embodiments of the present invention are directed to spacers that resist migration and rotation. This abstract is not intended to be a complete description of the invention.
    Type: Application
    Filed: May 4, 2010
    Publication date: August 19, 2010
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Gary A. Lamoureaux, James Matons, Warren W. Johnston, Matthew Bouffard, Warren Rice
  • Publication number: 20090124894
    Abstract: In an embodiment, an implantable marker, which is adapted to be implanted into patient tissue using a hollow needle, includes a marker body including a radiopaque material and a polymeric material that encapsulates at least a portion of the marker body. In an embodiment, an outer surface of the encapsulating material includes one or more protrusions to reduce a tendency of the marker to migrate and rotate within a patient's body after implantation.
    Type: Application
    Filed: January 21, 2009
    Publication date: May 14, 2009
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Gary A. Lamoureux, James Matons, Warren W. Johnston, Matthew Bouffard, Warren Rice
  • Publication number: 20090124846
    Abstract: In an embodiment, a brachytherapy device includes a cartridge adapted for use with a brachytherapy applicator. A plurality of anchor seeds are stacked parallel to one another within the cartridge. Each anchor seed includes a radioactive seed that is at least partially encapsulated by a polymeric material. Additionally, each anchor seed can include at least one protrusion on an outer surface of the encapsulating polymeric material to a reduce a tendency for the anchor seed to migrate and rotate within a patient's body after the anchor seed is implanted.
    Type: Application
    Filed: January 21, 2009
    Publication date: May 14, 2009
    Applicant: BIOCOMPATIBLES UK LIMITED
    Inventors: Gary A. Lamoureux, James Matons, Warren W. Johnston, Mathew Bouffard, Warren Rice
  • Publication number: 20070265488
    Abstract: In one embodiment an after-loader for providing an implant to a hollow needle, the after-loader comprising a body having a distal end including a bevel for receiving a hub of a seed lock needle, and a bore therethrough for receiving a hub of a MICKĀ® needle; a proximal end having a funnel shaped opening; a shield adapted to be provided over the body; and wherein the distal end further includes a taper along a portion of a distance from the distal end to the proximal end for providing a friction fit to a shield. This abstract is not intended to be a complete description of the invention.
    Type: Application
    Filed: November 3, 2006
    Publication date: November 15, 2007
    Applicant: Worldwide Medical Technologies LLC
    Inventors: Gary A. Lamoureux, Warren W. Johnston
  • Publication number: 20070265487
    Abstract: In one embodiment an applicator includes a needle receiver adapted to be removably mateable with a needle positioned at the surgical site, a housing adapted to receive a push rod, and a clip for receiving one or more implants, the clip having a plurality of ports adapted to bridge the needle receiver and the housing so that the needle receiver can receive the push rod, wherein the clip can be rotatably repositioned so that the plurality of ports can selectively bridge the needle receiver and the housing. This abstract is not intended to be a complete description of the invention.
    Type: Application
    Filed: November 3, 2006
    Publication date: November 15, 2007
    Applicant: WORLDWIDE MEDICAL TECHNOLOGIES LLC
    Inventors: Gary A. Lamoureux, Warren W. Johnston