Patents by Inventor Warren P. Williamson, IV

Warren P. Williamson, IV 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: 20190254672
    Abstract: A clamp having at least first and second elongate clamping portions adapted to be placed on opposite sides of the hollow anatomical structure. The first and second elongate clamping portions respectively include ends coupled together with respective resilient urging members configured to urge at least one of the first and second elongate clamping portions toward the other of the first and second elongate clamping portions from an open position into a clamping position to occlude the hollow anatomical structure. The clamp includes tissue ingrowth structure on the clamping portions.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Inventors: Warren P. Williamson, IV, Delos M. Cosgrove, III
  • Patent number: 10314585
    Abstract: A clamp having at least first and second elongate clamping portions adapted to be placed on opposite sides of the hollow anatomical structure. The first and second elongate clamping portions respectively include ends coupled together with respective resilient urging members configured to urge at least one of the first and second elongate clamping portions toward the other of the first and second elongate clamping portions from an open position into a clamping position to occlude the hollow anatomical structure. The clamp includes tissue ingrowth structure on the clamping portions.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: June 11, 2019
    Assignees: IDx Medical, Ltd., The Cleveland Clinic Foundation
    Inventors: Warren P. Williamson, IV, Delos M. Cosgrove, III
  • Patent number: 10285712
    Abstract: A method of occluding an appendage of the heart with a clamp including at least first and second elongate clamping portions, the first and second elongate clamping portions including tissue engaging surfaces that promote tissue ingrowth. The method includes implanting the clamp by positioning the first and second elongate clamping portions on opposite sides of the appendage. At least one of the first or second elongate clamping portions is biased toward the other of the first and second elongate clamping portions to place the clamp into a clamping position on the appendage. Tissue ingrowth into the tissue engaging surfaces retains the clamp in place on the appendage.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: May 14, 2019
    Assignees: Idx Medical, Ltd., The Cleveland Clinic Foundation
    Inventors: Delos M. Cosgrove, III, Warren P. Williamson, IV, Craig B. Berky
  • Patent number: 10166024
    Abstract: A clamp having at least first and second elongate clamping portions adapted to be placed on opposite sides of the hollow anatomical structure. The first and second elongate clamping portions respectively include ends coupled together with respective resilient urging members configured to urge at least one of the first and second elongate clamping portions toward the other of the first and second elongate clamping portions from an open position into a clamping position to occlude the hollow anatomical structure. The clamp includes tissue ingrowth structure on the clamping portions.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: January 1, 2019
    Assignees: IDx Medical, Ltd., Atricure Inc., The Cleveland Clinic Foundation
    Inventors: Warren P. Williamson, IV, Jason I. Glithero, Michael W. Goldenbogen, Chadd R. Tyler, Todd A. Hall, Delos M. Cosgrove
  • Publication number: 20180156701
    Abstract: A histologic tissue sample support device includes a tissue cassette a frame, and a lid. The tissue cassette has a recess including a body with at least one side wall and a bottom wall and is formed of material that can be successfully sectioned in a microtome and is resistant to degradation from solvents and chemicals used to fix, process and stain tissue. The tissue cassette is movably coupled to the frame. The lid is separably coupled to a peripheral portion of the frame. When the lid is separated from the peripheral portion, the lid and the tissue cassette are capable of moving from a first position to a second position with respect to the frame, and in the second position the bottom wall and at least a portion of the side wall extend beyond a bottom edge of the frame for sectioning in the microtome.
    Type: Application
    Filed: February 2, 2018
    Publication date: June 7, 2018
    Inventor: Warren P. Williamson, IV
  • Patent number: 9194779
    Abstract: An automated machine for handling and embedding tissue samples contained on microtome sectionable supports. The machine includes an input member configured to hold a plurality of the microtome sectionable supports prior to a tissue embedding operation. An output member is configured to hold a plurality of the microtome sectionable supports after the tissue embedding operation. A cooling unit is configured to hold at least one of the microtome sectionable supports during the tissue embedding operation. A motorized carrier assembly is mounted for movement and configured to hold at least one of the microtome sectionable supports. The carrier assembly moves the support from the input member to the cooling unit and, finally, to the output member. A dispensing device dispenses an embedding material onto the microtome sectionable support and at least one tissue sample carried by the microtome sectionable support during the embedding operation.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: November 24, 2015
    Assignee: BioPath Automation, L.L.C.
    Inventors: Warren P. Williamson, IV, Stephen P. Whitlatch
  • Publication number: 20150320426
    Abstract: A method of occluding an appendage of the heart with a clamp including at least first and second elongate clamping portions, the first and second elongate clamping portions including tissue engaging surfaces that promote tissue ingrowth. The method includes implanting the clamp by positioning the first and second elongate clamping portions on opposite sides of the appendage. At least one of the first or second elongate clamping portions is biased toward the other of the first and second elongate clamping portions to place the clamp into a clamping position on the appendage. Tissue ingrowth into the tissue engaging surfaces retains the clamp in place on the appendage.
    Type: Application
    Filed: July 21, 2015
    Publication date: November 12, 2015
    Inventors: Delos M. Cosgrove, III, Warren P. Williamson, IV, Craig B. Berky
  • Patent number: 9119627
    Abstract: A method of occluding an appendage of the heart with a clamp including at least first and second elongate clamping portions, the first and second elongate clamping portions including tissue engaging surfaces that promote tissue ingrowth. The method includes implanting the clamp by positioning the first and second elongate clamping portions on opposite sides of the appendage. At least one of the first or second elongate clamping portions is biased toward the other of the first and second elongate clamping portions to place the clamp into a clamping position on the appendage. Tissue ingrowth into the tissue engaging surfaces retains the clamp in place on the appendage.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: September 1, 2015
    Assignees: IDX MEDICAL, LTD, THE CLEVELAND CLINIC FOUNDATION
    Inventors: Delos M. Cosgrove, Warren P. Williamson, IV, Craig B. Berky
  • Publication number: 20150223813
    Abstract: A clamp having at least first and second elongate clamping portions adapted to be placed on opposite sides of the hollow anatomical structure. The first and second elongate clamping portions respectively include ends coupled together with respective resilient urging members configured to urge at least one of the first and second elongate clamping portions toward the other of the first and second elongate clamping portions from an open position into a clamping position to occlude the hollow anatomical structure. The clamp includes tissue ingrowth structure on the clamping portions.
    Type: Application
    Filed: April 21, 2015
    Publication date: August 13, 2015
    Inventors: Warren P. Williamson, IV, Delos M. Cosgrove, III
  • Patent number: 9097630
    Abstract: A method of staging a tissue sample cassette, including a cassette body and a lid, from an upper position in a frame used during a tissue embedding process to a lower position in the frame. The method comprises coupling the cassette with the frame such that the cassette is in the upper position and positively stopped at the upper position by first structure on a wall of the frame. The cassette is moved relative to the frame to the lower position by selectively engaging the cassette with a staging mechanism. An external force is applied to the cassette with the staging mechanism in a direction to move the cassette from the upper position toward the lower position. The cassette is retained in the lower position using second structure on the wall of the frame, such that the cassette is exposed for embedding the cassette in an embedding medium and subsequently slicing the tissue sample embedded in the embedding medium.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: August 4, 2015
    Assignee: BioPath Automation, L.L.C.
    Inventors: Warren P. Williamson, IV, Craig B. Berky, Stephen P. Whitlatch, Thomas J. Ward
  • Publication number: 20150198509
    Abstract: An automated machine for handling and embedding tissue samples contained on microtome sectionable supports. The machine includes an input member configured to hold a plurality of the microtome sectionable supports prior to a tissue embedding operation. An output member is configured to hold a plurality of the microtome sectionable supports after the tissue embedding operation. A cooling unit is configured to hold at least one of the microtome sectionable supports during the tissue embedding operation. A motorized carrier assembly is mounted for movement and configured to hold at least one of the microtome sectionable supports. The carrier assembly moves the support from the input member to the cooling unit and, finally, to the output member. A dispensing device dispenses an embedding material onto the microtome sectionable support and at least one tissue sample carried by the microtome sectionable support during the embedding operation.
    Type: Application
    Filed: March 10, 2015
    Publication date: July 16, 2015
    Applicant: BIOPATH AUTOMATION, L.L.C.
    Inventors: Warren P. Williamson, IV, Stephen P. Whitlatch
  • Patent number: 8998892
    Abstract: An electrosurgical end effector for ablating tissue is provided that comprises at least one electrically-conductive ablation member adapted to be connected to a source of RF energy, with the ablation member having a tissue engaging surface and an internal fluid passageway. Preferably, the end effector includes two electrically conductive ablation members that are electrically isolated from one another.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: April 7, 2015
    Assignee: AtriCure, Inc.
    Inventors: Matthew J. Winkler, Peter F Staats, Warren P Williamson, IV, Jason Iain Gilthero, Michael D. Hooven, David J. Drachman
  • Patent number: 8999270
    Abstract: An automated machine for handling and embedding tissue samples contained on microtome sectionable supports. The machine includes an input member configured to hold a plurality of the microtome sectionable supports prior to a tissue embedding operation. An output member is configured to hold a plurality of the microtome sectionable supports after the tissue embedding operation. A cooling unit is configured to hold at least one of the microtome sectionable supports during the tissue embedding operation. A motorized carrier assembly is mounted for movement and configured to hold at least one of the microtome sectionable supports. The carrier assembly moves the support from the input member to the cooling unit and, finally, to the output member. A dispensing device dispenses an embedding material onto the microtome sectionable support and at least one tissue sample carried by the microtome sectionable support during the embedding operation.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: April 7, 2015
    Assignee: BioPath Automation, L.L.C.
    Inventors: Warren P. Williamson, IV, Stephen P. Whitlatch
  • Patent number: 8984758
    Abstract: A gauge for measuring the headspace dimension of a firearm chamber. The gauge includes a first member coupled to a second member in a telescopic fashion. The first and second members may be positioned in an open firearm chamber. With the firearm chamber subsequently closed, the first and second members are moved into a position that gives the actual headspace dimension and locked in that position. The gauge may then be removed from the chamber and measured to give the user the actual headspace dimension.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 24, 2015
    Assignee: Long Shot Products, Ltd.
    Inventor: Warren P. Williamson, IV
  • Patent number: 8915878
    Abstract: An electrosurgical end effector for ablating tissue is provided that comprises at least one electrically-conductive ablation member adapted to be connected to a source of RF energy, with the ablation member having a tissue engaging surface and defining an internal fluid passageway. Preferably, the end effector includes two electrically conductive ablation members that are electrically isolated from one another and have their fluid passageways in fluid communication. Alternatively, the end effector may comprise four electrically conductive ablation members arranged as two pairs of ablation members, all of the ablation members having internal fluid passageways that are electrically isolated from each other, with the fluid passageways of each of the four ablation members being in fluid communication with each other.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: December 23, 2014
    Inventors: Matthew J. Winkler, Peter F. Staats, Warren P. Williamson, IV, Jason I. Glithero
  • Patent number: 8877146
    Abstract: A cassette for holding a tissue sample includes a body having a bottom wall and a plurality of side walls extending upwardly with respect to the bottom wall to define an interior space for receiving the tissue sample. A lid is configured to be received in the interior space, and the cassette is sectionable in a microtome. Sensing elements are associated with the body or lid and configured to allow an automated sensing system to determine at least one characteristic of the cassette. A flange extends along upper portions of at least two of the side walls and includes a plurality of holes. Other features are included to more effectively and efficiently manufacture and use the cassette.
    Type: Grant
    Filed: January 2, 2007
    Date of Patent: November 4, 2014
    Assignee: Biopath Automation, L.L.C.
    Inventors: Warren P. Williamson, IV, Thomas J. Ward, Stephen P. Whitlatch
  • Publication number: 20140255986
    Abstract: An automated machine for handling and embedding tissue samples contained on microtome sectionable supports. The machine includes an input member configured to hold a plurality of the microtome sectionable supports prior to a tissue embedding operation. An output member is configured to hold a plurality of the microtome sectionable supports after the tissue embedding operation. A cooling unit is configured to hold at least one of the microtome sectionable supports during the tissue embedding operation. A motorized carrier assembly is mounted for movement and configured to hold at least one of the microtome sectionable supports. The carrier assembly moves the support from the input member to the cooling unit and, finally, to the output member. A dispensing device dispenses an embedding material onto the microtome sectionable support and at least one tissue sample carried by the microtome sectionable support during the embedding operation.
    Type: Application
    Filed: May 23, 2014
    Publication date: September 11, 2014
    Applicant: BIOPATH AUTOMATION, L.L.C.
    Inventors: Warren P. Williamson, IV, Thomas J. Ward, Douglas P. Allen
  • Patent number: 8796038
    Abstract: Tissue orientation devices include a perforated tissue support with at least one perforated channel for receiving a tissue sample, and a plurality of tabs configured to extend along and into the channel to retain the tissue sample during processing and embedding. Tissue orientation devices include elongated legs coupled together for holding one or more biopsy tissue samples therebetween. Associated methods include using the cassettes and orientation devices to hold and orient tissue samples for processing, embedding and microtome sectioning.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: August 5, 2014
    Assignees: Biopath Automation, L.L.C., Sakura Finetek U.S.A., Inc.
    Inventors: Warren P. Williamson, IV, Stephen P. Whitlatch, Carlos A. Saez
  • Publication number: 20140205515
    Abstract: Tissue orientation devices include a perforated tissue support with at least one perforated channel for receiving a tissue sample, and a plurality of tabs configured to extend along and into the channel to retain the tissue sample during processing and embedding. Tissue orientation devices include elongated legs coupled together for holding one or more biopsy tissue samples therebetween. Associated methods include using the cassettes and orientation devices to hold and orient tissue samples for processing, embedding and microtome sectioning.
    Type: Application
    Filed: April 11, 2014
    Publication date: July 24, 2014
    Applicants: SAKURA FINETEK U.S.A., INC., BIOPATH AUTOMATION, L.L.C.
    Inventors: Warren P. Williamson, IV, Stephen P. Whitlatch, Carlos A. Saez
  • Publication number: 20140196300
    Abstract: A gauge for measuring the headspace dimension of a firearm chamber. The gauge includes a first member coupled to a second member in a telescopic fashion. The first and second members may be positioned in an open firearm chamber. With the firearm chamber subsequently closed, the first and second members are moved into a position that gives the actual headspace dimension and locked in that position. The gauge may then be removed from the chamber and measured to give the user the actual headspace dimension.
    Type: Application
    Filed: March 14, 2013
    Publication date: July 17, 2014
    Applicant: LONG-SHOT PRODUCTS, LTD.
    Inventor: Warren P. Williamson, IV