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: 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
  • Patent number: 8734735
    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 14, 2011
    Date of Patent: May 27, 2014
    Assignee: Biopath Automation, L.L.C.
    Inventors: Warren P. Williamson, IV, Thomas J. Ward, Stephen P. Whitlatch
  • Publication number: 20140113328
    Abstract: A histologic tissue sample support device includes a tissue support 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. A resilient cellular material is coupled to the tissue support and is configured to engage and retain tissue in place during processing and embedding. The resilient cellular material is also capable of successful sectioning in the microtome and porous to allow infiltration of the solvents and chemicals used to fix, process and stain tissue, and of embedding material used to embed the tissue while the tissue is retained by the resilient cellular material.
    Type: Application
    Filed: January 2, 2014
    Publication date: April 24, 2014
    Applicant: BioPath Automation, L.L.C.
    Inventor: Warren P. Williamson, IV
  • Publication number: 20140099661
    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: Application
    Filed: December 13, 2013
    Publication date: April 10, 2014
    Applicant: BIOPATH AUTOMATION, L.L.C.
    Inventors: Warren P. Williamson, IV, Craig B. Berky, Stephen P. Whitlatch, Thomas J. Ward
  • Publication number: 20140073004
    Abstract: A sectionable tissue sample support structure including a gel compound formed into a self supporting geometric shape for retention and orientation of at least one tissue sample during a histopathology process including processing, embedding and microtome slicing of the tissue sample. A method of orienting, processing, embedding and microtome slicing a tissue sample using a gel compound preformed into a self supporting geometric shape. A combination including the sectionable tissue sample support structure and a package containing the sectionable tissue sample support structure.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 13, 2014
    Applicants: Sakura Finetek U.S.A., Inc., BioPath Automation, L.L.C.
    Inventors: Warren P. Williamson, IV, Richard W. Dapson, Amit D. Shah
  • Publication number: 20140025058
    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: Application
    Filed: January 14, 2013
    Publication date: January 23, 2014
    Inventors: Matthew J. Winkler, Peter F. Staats, Warren P. Williamson, IV, Jason I. Glithero
  • Patent number: 8623300
    Abstract: A histologic tissue sample support device includes a tissue support 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. A resilient cellular material is coupled to the tissue support and is configured to engage and retain tissue in place during processing and embedding. The resilient cellular material is also capable of successful sectioning in the microtome and porous to allow infiltration of the solvents and chemicals used to fix, process and stain tissue, and of embedding material used to embed the tissue while the tissue is retained by the resilient cellular material.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: January 7, 2014
    Assignee: Biopath Automation, L.L.C.
    Inventor: Warren P. Williamson, IV
  • Patent number: 8609431
    Abstract: The disclosure relates to a cassette, frame and mold for holding a tissue sample during an embedding and mircotoming process, and related methods. The cassette is sectionable in a microtome and includes a body with a bottom wall and a plurality of side walls. First and second side walls are generally V-shaped to present an apex of the ā€œVā€ to the microtome blade. A lid of the cassette is stiffer than the bottom wall of the cassette to assist with positioning the tissue sample. The side walls of the cassette are perforated so as to significantly reduce the amount of cassette material that must be cut by the microtome blade. In one embodiment, to additionally reduce blade wear the ribs on one side wall are offset lengthwise relative to the ribs on an opposite side wall. An upper flange of the cassette includes depressions configured to register with detents in the frame.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: December 17, 2013
    Assignee: Biopath Automation, L.L.C.
    Inventors: Warren P. Williamson, IV, Craig B. Berky, Stephen P. Whitlatch, Thomas J. Ward
  • Publication number: 20130245652
    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: May 20, 2013
    Publication date: September 19, 2013
    Applicants: THE CLEVELAND CLINIC FOUNDATION, IDX MEDICAL, LTD.
    Inventors: Delos M. Cosgrove, Warren P. Williamson, IV, Craig B. Berky
  • Patent number: 8465507
    Abstract: A device for occluding a hollow anatomical structure includes a clamp having at least first and second clamping portions adapted to be placed on opposite sides of the anatomical structure. At least one of the first and second clamping portions is movable toward the other from an open position to a clamping or closed position to occlude the anatomical structure. The clamp has an annular shape configured to surround the hollow anatomical structure in the open position and a flattened shape in the clamping position configured to occlude the hollow interior of the anatomical structure. The clamp is preferably covered with fabric to promote tissue ingrowth. A clamp delivery and actuation device is provided for allowing the clamp to be applied in either an open surgical procedure or a minimally invasive procedure.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: June 18, 2013
    Assignees: IDX Medical, Ltd., The Cleveland Clinic Foundation
    Inventors: Delos M. Cosgrove, Warren P. Williamson, IV, Craig B. Berky
  • Patent number: 8383067
    Abstract: A histologic tissue sample support device includes a tissue support 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. A resilient cellular material is coupled to the tissue support and is configured to engage and retain tissue in place during processing and embedding. The resilient cellular material is also capable of successful sectioning in the microtome and porous to allow infiltration of the solvents and chemicals used to fix, process and stain tissue, and of embedding material used to embed the tissue while the tissue is retained by the resilient cellular material.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: February 26, 2013
    Assignee: Biopath Automation, L.L.C.
    Inventor: Warren P. Williamson, IV
  • Patent number: 8353907
    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: December 18, 2008
    Date of Patent: January 15, 2013
    Assignee: AtriCure, Inc.
    Inventors: Matthew J. Winkler, Peter F. Staats, Warren P. Williamson, IV, Jason I. Glithero
  • Publication number: 20130004990
    Abstract: A histologic tissue sample support device includes a tissue support 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. A resilient cellular material is coupled to the tissue support and is configured to engage and retain tissue in place during processing and embedding. The resilient cellular material is also capable of successful sectioning in the microtome and porous to allow infiltration of the solvents and chemicals used to fix, process and stain tissue, and of embedding material used to embed the tissue while the tissue is retained by the resilient cellular material.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 3, 2013
    Applicant: BioPath Automation, L.L.C.
    Inventor: Warren P. Williamson, IV
  • Patent number: 8329120
    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: January 22, 2010
    Date of Patent: December 11, 2012
    Assignees: Biopath Automation, L.L.C., Sakura Finetek U.S.A., Inc.
    Inventors: Warren P. Williamson, IV, Stephen P. Whitlatch, Carlos A. Saez
  • Patent number: 8317695
    Abstract: A system for manipulating a heart during cardiac surgery permits coronary surgery on a beating heart while maintaining cardiac output unabated and uninterrupted. Circumflex coronary artery surgery can be performed using the system. A component of the system engages the heart with a heart positioning device, repositions the heart into a displaced position and maintains it in the displaced position while the heart continues to beat with substantially unabated and uninterrupted cardiac output. One form of the system can be used in minimally invasive surgery.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: November 27, 2012
    Assignee: Maquet Cardiovascular LLC
    Inventors: Paul A. Spence, Warren P. Williamson, IV, Mark Ortiz
  • Publication number: 20120203241
    Abstract: A tissue containment and extraction device including a tissue grasper configured to extend into a patient through an access site. The device includes jaws operative to grasp onto tissue to be extracted from the patient, and a tissue container having a distal end and a proximal end. The distal end of the grasper extends through the proximal end of the tissue container and is further operative to be extended through the distal end of the tissue container to grasp onto and pull the tissue proximally into the tissue container. A deployment structure is operatively coupled with the tissue container to allow a user to open the distal end of the container for receipt of the tissue and close the distal end of the container after the tissue is pulled into the tissue container. Related methods are also disclosed.
    Type: Application
    Filed: October 19, 2010
    Publication date: August 9, 2012
    Applicant: WW7 L.L.C.
    Inventor: Warren P. Williamson, IV
  • Patent number: 8162817
    Abstract: A suction cup adapted to engage a surface of a beating heart with sufficient force to move the beating heart to an unnatural position upon moving the suction cup, while the suction cup maintains engagement with the surface of the heart and the heart continues to heat. Various suction cups are described each including at least a first chamber having a flexible rim and configured to engage the surface of the beating heart and a second chamber smaller than the first chamber and fluidly connected therewith. A suspension device configured to engage a beating heart and maintain engagement via suction while moving the suspension device to move the beating heart to an unnatural position and maintain the beating heart in the unnatural position to perform a surgical procedure, while the heart continues to beat, includes a suction cup and a support arm connected thereto.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: April 24, 2012
    Assignee: Maquet Cardiovascular LLC
    Inventors: Paul A. Spence, Warren P. Williamson, IV, Mark Ortiz
  • Publication number: 20120059400
    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: July 29, 2011
    Publication date: March 8, 2012
    Applicants: IDX MEDICAL, LTD, THE CLEVELAND CLINIC FOUNDATION, ATRICURE, INC.
    Inventors: Warren P. Williamson, IV, Jason I. Glithero, Michael W. Goldenbogen, Chadd R. Tyler, Todd A. Hall, Delos M. Cosgrove
  • Publication number: 20120053603
    Abstract: Wound closing clips (70, 90) each include a clip body (70a, 90a) and a first plurality of teeth (74, 94) extending in a first direction from the clip body (70a, 90a) for engaging superficial skin tissue. A second plurality of teeth (76,96) extends in a second direction from the clip body for engaging tissue below the superficial tissue, the second direction being different than the first direction and configured to direct the second plurality of teeth into deeper tissue than the first plurality of teeth and a flexible tensile member connecting portion coupled with said first and second pluralities of teeth (74, 76, 94, 96). The flexible tensile member connecting portion (82, 84, 92, 93) includes an element capable of securing a flexible tensile member (62) extending below the tissue engaged with the second plurality of teeth (76, 96) and across a base of the wound (50) resulting in a wound closing system.
    Type: Application
    Filed: May 7, 2010
    Publication date: March 1, 2012
    Applicant: CLEVEX, INC.
    Inventor: Warren P. Williamson, IV
  • Patent number: 8114129
    Abstract: Apparatus and methods for repairing damaged tendons or ligaments. Various repair apparatus include an elongate tensile member and a pair of anchor assemblies connected for movement along the tensile member on either side of a repair site, such as a tear or laceration. The anchor assemblies or structures may take many forms, and may include barbed, helical, and crimp-type anchors. In the preferred embodiments, at least one anchor structure is movable along the elongate tensile member to assist with adjusting a tendon segment to an appropriate repair position and the anchor structure or structures are then lockable onto the elongate tensile member to assist with affixing the tendon at the repair position. Tendon and/or ligament-to-bone repair apparatus and methods employ similar concepts.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: February 14, 2012
    Assignees: Tendon Technology, Ltd., Ortheon Medical L.L.C.
    Inventors: Lawrence M. Lubbers, Kenneth E. Hughes, Carl R. Coleman, Warren P. Williamson, IV, Craig B. Berky, Thomas J. Ward, Matthew J. Huddleston, Mark A. Goldin, William J. Christy, Perry DeFazio, Brian Scott Schumacher, Terence Lee Murphy, Nickola Symone Lewis, Jeremy Jarrett, Joseph E. Young