Patents by Inventor John L. Marsh

John L. Marsh 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: 9597131
    Abstract: This invention provides a calcaneal plate implanted using a sinus tarsi approach and comprises an anterior section having two locking screw holes, an s-shaped posterior facet section having a four locking holes and which rounds toward the bone at both the inferior and superior edges and is reinforced at the superior edge, and a blade shaped posterior portion having three linearly aligned locking holes and terminating in a tapered portion. There is also, a drill guide assembly having a drill guide column inserted through a hole in a targeting guide and locking to one of the locking holes in the plate, and cannulated drill guide sleeves that lock into holes in the targeting guide in a spaced relation whereby when the targeting guide is locked into the plate, the targeting guide can be used as a handle and wherein locking screws can be implanted percutaneously.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: March 21, 2017
    Assignee: Orthohelix Surgical Designs, Inc.
    Inventors: James P. Price, Michael A. Zwolinski, Andrew J. Leither, David B. Kay, Bryan D. Den Hartog, David B. Thordarson, John L. Marsh, Derek S. Lewis
  • Publication number: 20160346022
    Abstract: This invention provides a calcaneal plate implanted using a sinus tarsi approach and comprises an anterior section having two locking screw holes, an s-shaped posterior facet section having a four locking holes and which rounds toward the bone at both the inferior and superior edges and is reinforced at the superior edge, and a blade shaped posterior portion having three linearly aligned locking holes and terminating in a tapered portion. There is also, a drill guide assembly having a drill guide column inserted through a hole in a targeting guide and locking to one of the locking holes in the plate, and cannulated drill guide sleeves that lock into holes in the targeting guide in a spaced relation whereby when the targeting guide is locked into the plate, the targeting guide can be used as a handle and wherein locking screws can be implanted percutaneously.
    Type: Application
    Filed: August 9, 2016
    Publication date: December 1, 2016
    Inventors: James P. Price, Michael A. Zwolinski, Andrew J. Leither, David B. Kay, Bryan D. Den Hartog, David B. Thordarson, John L. Marsh, Derek S. Lewis
  • Patent number: 9414872
    Abstract: This invention provides a calcaneal plate implanted using a sinus tarsi approach and comprises an anterior section having two locking screw holes, an s-shaped posterior facet section having a four locking holes and which rounds toward the bone at both the inferior and superior edges and is reinforced at the superior edge, and a blade shaped posterior portion having three linearly aligned locking holes and terminating in a tapered portion. There is also, a drill guide assembly having a drill guide column inserted through a hole in a targeting guide and locking to one of the locking holes in the plate, and cannulated drill guide sleeves that lock into holes in the targeting guide in a spaced relation whereby when the targeting guide is locked into the plate, the targeting guide can be used as a handle and wherein locking screws can be implanted percutaneously.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: August 16, 2016
    Assignee: Orthohelix Surgical Designs, Inc.
    Inventors: James P. Price, Michael A. Zwolinski, Andrew J. Leither, David B. Kay, Bryan D. Den Hartog, David B. Thordarson, John L. Marsh, Derek S. Lewis
  • Publication number: 20160051299
    Abstract: This invention provides a calcaneal plate implanted using a sinus tarsi approach and comprises an anterior section having two locking screw holes, an s-shaped posterior facet section having a four locking holes and which rounds toward the bone at both the inferior and superior edges and is reinforced at the superior edge, and a blade shaped posterior portion having three linearly aligned locking holes and terminating in a tapered portion. There is also, a drill guide assembly having a drill guide column inserted through a hole in a targeting guide and locking to one of the locking holes in the plate, and cannulated drill guide sleeves that lock into holes in the targeting guide in a spaced relation whereby when the targeting guide is locked into the plate, the targeting guide can be used as a handle and wherein locking screws can be implanted percutaneously.
    Type: Application
    Filed: November 3, 2015
    Publication date: February 25, 2016
    Inventors: James P. Price, Michael A. Zwolinski, Andrew J. Leither, David B. Kay, Bryan D. Den Hartog, David B. Thordarson, John L. Marsh, Derek S. Lewis
  • Patent number: 9204912
    Abstract: This invention provides a calcaneal plate implanted using a sinus tarsi approach and comprises an anterior section having two locking screw holes, an s-shaped posterior facet section having a four locking holes and which rounds toward the bone at both the inferior and superior edges and is reinforced at the superior edge, and a blade shaped posterior portion having three linearly aligned locking holes and terminating in a tapered portion. There is also, a drill guide assembly having a drill guide column inserted through a hole in a targeting guide and locking to one of the locking holes in the plate, and cannulated drill guide sleeves that lock into holes in the targeting guide in a spaced relation whereby when the targeting guide is locked into the plate, the targeting guide can be used as a handle and wherein locking screws can be implanted percutaneously.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: December 8, 2015
    Assignee: ORTHOHELIX SURGICAL DESIGNS, INC.
    Inventors: James P. Price, Michael A. Zwolinski, Andrew J. Leither, David B. Kay, Bryan D. Den Hartog, David B. Thordarson, John L. Marsh, Derek S. Lewis
  • Publication number: 20140066996
    Abstract: This invention provides a calcaneal plate implanted using a sinus tarsi approach and comprises an anterior section having two locking screw holes, an s-shaped posterior facet section having a four locking holes and which rounds toward the bone at both the inferior and superior edges and is reinforced at the superior edge, and a blade shaped posterior portion having three linearly aligned locking holes and terminating in a tapered portion. There is also, a drill guide assembly having a drill guide column inserted through a hole in a targeting guide and locking to one of the locking holes in the plate, and cannulated drill guide sleeves that lock into holes in the targeting guide in a spaced relation whereby when the targeting guide is locked into the plate, the targeting guide can be used as a handle and wherein locking screws can be implanted percutaneously.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 6, 2014
    Applicant: ORTHOHELIX SURGICAL DESIGNS, INC.
    Inventors: James P. Price, Michael A. Zwolinksi, Andrew J. Leither, David B. Kay, Bryan D. Den Hartog, David B. Thordarson, John L. Marsh, Derek S. Lewis
  • Patent number: 4891734
    Abstract: An elastomeric body encapsulates an electronic assembly, to be protected from vibration on shock, and is confined in a closed cavity of a structure subject to the vibration and shock. The body is cast in a separate mold having a cavity corresponding in shape and size to the closed cavity. The surface of the mold has projections to form indentations in the surface of the body. With the body in the closed cavities, the indentations are effectively voids and accept elastomeric material displaced from the body when the body expands relative to the cavity.The preferred embodiment provides a strongback support with open cavities, each to receive a body. The strongback is inserted into a tube to complete the structure and close the open cavities. The strongback has wiring chambers to accept flexible leads connected to each body, and channels into which wire is potted, to extend from the leads to external circuitry.
    Type: Grant
    Filed: June 15, 1988
    Date of Patent: January 2, 1990
    Assignee: Quantum Solutions, Inc.
    Inventors: Henry S. More, John L. Marsh
  • Patent number: 4646831
    Abstract: For the directional drilling of boreholes, the orientation of accelerometer modules, magnetometer modules and gyroscopes or other directional sensing devices must be accurately known and maintained with respect to each other and to external mounting devices. This is accomplished by a self-aligning segmented cylindrical connection which accurately maintains modules in rotational alignment with each other for all three directions of rotation, even if the mating surfaces of the connection experience wear due to rough use in the drilling application or repeated calibration in a calibration fixture. Wedged surfaces on each of the male and female portions of the connection constitute the mating surfaces, and are the only surfaces at which the male and female portions contact one another. A depression between the mating surfaces defined by the female portion permits reproducible angular displacement of one portion with respect to the other even if one or both portions are worn.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: March 3, 1987
    Assignee: Develco, Incorporated
    Inventors: John L. Marsh, Edward C. Fraser, Louis H. Rorden, William H. Bauer