Patents by Inventor Edward Liou

Edward Liou 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: 9622791
    Abstract: A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and/or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: April 18, 2017
    Assignee: PROVIDENCE MEDICAL TECHNOLOGY, INC.
    Inventors: Bruce M. McCormack, Jeffrey D. Smith, Shigeru Tanaka, Edward Liou, Edward Fletcher Eyster, Jonathan Carver, Joshua Druker, Martin Leugers, Kurin Tu, Peter Lombrozo
  • Publication number: 20170035468
    Abstract: A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and/or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion.
    Type: Application
    Filed: June 30, 2016
    Publication date: February 9, 2017
    Inventors: Bruce M. McCORMACK, Jeffrey D. SMITH, Shigeru TANAKA, Edward LIOU, Edward Fletcher EYSTER, Jonathan CARVER, Joshua DRUKER, Martin LEUGERS, Kurin TU, Peter LOMBROZO
  • Publication number: 20160374823
    Abstract: Implementations described and claimed herein provide a distal leading portion of a composite spinal implant for implantation in a spinal facet joint. In one implementation, the distal leading portion includes a distal leading end, a proximal trailing end, a first face, and a second face. The distal leading end has a distal surface generally opposite a proximal surface of the proximal trailing end. The first face has a first surface that is generally parallel with a second surface of the second face. The first and second faces extend between the distal leading end and the proximal trailing end, such that the first and second surfaces slope upwardly from the distal lead end to the proximal trailing end along a length of extending proximally. The first and second surfaces having one or more textured features adapted to provide friction with the spinal facet joint.
    Type: Application
    Filed: June 29, 2016
    Publication date: December 29, 2016
    Inventors: Bruce M. McCormack, Edward Liou, David Michael Schummers, Jeffrey D. Smith
  • Publication number: 20160331553
    Abstract: A system for implanting a bone screw into a vertebra of a vertebral column of a patient to help secure an implant within a joint between the vertebra and an adjacent vertebra may include a bone screw, a bone screw delivery mechanism detachably connected to the bone screw, and a guide tube. The guide tube may have a proximal end, a distal end, a lumen configured to receive the bone screw and the bone screw delivery mechanism, and at least one bend disposed nearer the distal end than the proximal end. The bend in the guide tube may change a trajectory of the bone screw and the bone screw delivery mechanism advancing through the lumen from a first trajectory along a longitudinal axis of the guide tube to a second trajectory that is angled relative to the longitudinal axis.
    Type: Application
    Filed: May 11, 2015
    Publication date: November 17, 2016
    Inventors: Shigeru TANAKA, Jeffrey D. SMITH, Christopher U. PHAN, Edward LIOU
  • Publication number: 20160331418
    Abstract: A method for implanting a bone screw in a vertebra may first involve inserting the bone screw and a bone screw delivery mechanism through a proximal end of a guide tube along a first trajectory. A proximal end of the bone screw is attached to a distal end of the bone screw delivery mechanism, and a distal end of the guide tube is positioned adjacent the vertebra. The method may next involve advancing the bone screw and the bone screw delivery mechanism through a bend in the guide tube to cause the bone screw to exit the distal end of the guide tube along a second trajectory and contact the vertebra. The method may further involve rotating the delivery mechanism to cause the bone screw to screw into the vertebra and detaching the bone screw delivery mechanism from the bone screw.
    Type: Application
    Filed: May 11, 2015
    Publication date: November 17, 2016
    Inventors: Shigeru TANAKA, Jeffrey D. SMITH, Christopher U. PHAN, Edward LIOU
  • Publication number: 20160317316
    Abstract: Implementations described and claimed herein provide a spinal facet cage implant for implantation in a spinal facet joint. In one implementation, the implant includes a distal leading end, a proximal trailing end, a first face, and a second face. The distal leading end has a distal surface generally opposite a proximal surface of the proximal trailing end. The first face has a first surface that is generally parallel with a second surface of the second face. The first and second faces extend between the distal leading end and the proximal trailing end. The first and second surfaces having one or more textured features adapted to provide friction with the spinal facet joint. One or more windows are defined in the first and/or second surfaces, and one or more side windows are defined in the first and/or second side surfaces.
    Type: Application
    Filed: May 9, 2016
    Publication date: November 3, 2016
    Inventors: Bruce M. McCormack, Edward Liou, David Michael Schummers, Jeffrey D. Smith
  • Publication number: 20160242993
    Abstract: Described herein are various embodiments of differential air pressure systems and components for differential air pressure systems. The air pressure systems comprise a chamber for receiving at least a portion of a user's body. Pressure in the chamber can be changed to adjust force on the user's body. Described herein are various methods and related structures for sealing a user into a pressurizable chamber. Also described herein are various methods and related structures for changing the shape and/or height of the chamber. Described herein are various types and configurations of chambers and support structures for chambers. Also described herein are various methods and related systems for treating various conditions using the differential air pressure systems, including but not limited to obesity, cardiac disease, multiple sclerosis, cerebral palsy, or Down Syndrome.
    Type: Application
    Filed: April 29, 2016
    Publication date: August 25, 2016
    Inventors: Sean Tremaine WHALEN, Mark A. SHUGHART, Douglas Frank SCHWANDT, Robert Tremaine WHALEN, Edward LIOU, Fritz MOORE
  • Patent number: 9381049
    Abstract: Implementations described and claimed herein provide a distal leading portion of a composite spinal implant for implantation in a spinal facet joint. In one implementation, the distal leading portion includes a distal leading end, a proximal trailing end, a first face, and a second face. The distal leading end has a distal surface generally opposite a proximal surface of the proximal trailing end. The first face has a first surface that is generally parallel with a second surface of the second face. The first and second faces extend between the distal leading end and the proximal trailing end, such that the first and second surfaces slope upwardly from the distal lead end to the proximal trailing end along a length of extending proximally. The first and second surfaces having one or more textured features adapted to provide friction with the spinal facet joint.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: July 5, 2016
    Assignee: PROVIDENCE MEDICAL TECHNOLOGY, INC.
    Inventors: Bruce M. McCormack, Edward Liou, David Michael Schummers, Jeffrey D. Smith
  • Patent number: 9333086
    Abstract: Implementations described and claimed herein provide a spinal facet cage implant for implantation in a spinal facet joint. In one implementation, the implant includes a distal leading end, a proximal trailing end, a first face, and a second face. The distal leading end has a distal surface generally opposite a proximal surface of the proximal trailing end. The first face has a first surface that is generally parallel with a second surface of the second face. The first and second faces extend between the distal leading end and the proximal trailing end. The first and second surfaces having one or more textured features adapted to provide friction with the spinal facet joint. One or more windows are defined in the first and/or second surfaces, and one or more side windows are defined in the first and/or second side surfaces.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: May 10, 2016
    Assignee: Providence Medical Technology, Inc.
    Inventors: Bruce M. McCormack, Edward Liou, David Michael Schummers, Jeffrey D. Smith
  • Publication number: 20160051277
    Abstract: Disclosed herein is a system for releasing a ligament. In one embodiment, the system includes a proximal handle, a tubular body, and a flexible body. The tubular body includes a proximal end and a distal end. The handle is coupled to the proximal end. The flexible body extends through the tubular body and includes a tissue cutting portion. The flexible body is longitudinally displaceable relative to the tubular body to move the tissue cutting portion between a non-deployed state and a deployed state.
    Type: Application
    Filed: May 7, 2015
    Publication date: February 25, 2016
    Inventors: Bruce M. McCORMACK, Edward Fletcher Eyster, Jeffrey D. Smith, Edward Liou, Jonathan Carver, Peter How, Joshua Druker, Martin Leugers, Shigeru Tanaka
  • Publication number: 20150366576
    Abstract: A method for performing a plantar fasciotomy on a foot may involve advancing an elongate plantar fasciotomy device through an entry point and an exit point on the foot, cutting the plantar fascia, using the plantar fasciotomy device, and observing the advancing step and/or the cutting step, via an ultrasound imaging device.
    Type: Application
    Filed: June 24, 2015
    Publication date: December 24, 2015
    Inventors: Edward Liou, David Michael Schummers, Jeffrey D. Smith, Bruce M. McCormack
  • Publication number: 20150342648
    Abstract: The various embodiments described herein provide lateral mass and facet fixation implants, which may be inserted and applied via a posterior approach, using minimally invasive or less invasive techniques. The embodiments described below generally include an intrafacet implant (or “facet implant”) and a lateral mass fixation member attached to or attachable to the facet implant. The lateral mass fixation member can include one or more tabs extending from a middle portion and configured to secure the lateral mass fixation member to lateral masses of adjacent vertebrae. The tabs may be flexible, semi-rigid, or rigid, and may be collapsible to facilitate insertion of the device. Methods for delivering the lateral mass and facet fixation implants are also described.
    Type: Application
    Filed: May 27, 2015
    Publication date: December 3, 2015
    Inventors: Bruce M. McCORMACK, Edward LIOU, Shigeru TANAKA, Christopher U. PHAN, Jeffrey D. SMITH, Todd Sheppard SAUNDERS, Krzysztof SIEMIONOW
  • Publication number: 20150342649
    Abstract: A device for accessing and guiding at least one fixation device to a spine may include a distal portion configured to fit in a facet of the spine and a proximal portion extending from the distal portion. The proximal portion may be detachable from the distal portion and may be hollow or solid. A system for accessing and guiding at least one fixation device to a spine may include a distal portion configured to fit in a facet of the spine, a proximal portion extending from the distal portion, and a slidable guide device for sliding over the facet guide device to guide at least one instrument to the spine.
    Type: Application
    Filed: May 27, 2015
    Publication date: December 3, 2015
    Inventors: Bruce M. McCormack, Edward Liou, Shigeru Tanaka, Christopher U. Phan
  • Publication number: 20150297357
    Abstract: Implementations described and claimed herein provide a bone anchor deployment device. In one implementation, the bone anchor deployment device includes a flexible shaft adapted to bend along a deployment trajectory. A socket at the distal end of the flexible shaft is adapted to retain a bone anchor in a non-coaxial position. The bone anchor deployment device further includes a guide shaft having a lumen and a distal tip and an elongated tube extending through at least a portion of the guide shaft lumen and protruding from the distal tip of the guide shaft. A guide passage extends through a lumen of the elongated tube, and a channel is formed from a surface at a distal end of the guide passage. The channel is oriented at an angle relative to the guide passage and is adapted to cause the flexible shaft to bend.
    Type: Application
    Filed: December 6, 2013
    Publication date: October 22, 2015
    Inventors: Bruce M. McCORMACK, Jeffrey D. SMITH, Edward LIOU, David Michael SCHUMMERS
  • Publication number: 20150202051
    Abstract: A spinal fusion system may include an interbody fusion cage, a fixation plate, and an implanter. The interbody fusion cage may include a proximal region, a distal region opposite the proximal region, a superior region, an inferior region opposite the superior region, and an open volume between the proximal and distal regions. The superior and inferior regions are located between the proximal and distal regions and are configured such that, when the interbody fusion cage is implanted in the disc space, the superior region contacts the inferior end plate and the inferior region contacts the superior end plate. The fixation plate is receivable in the open volume of the interbody fusion cage and includes a superior blade and an inferior blade. At least one of the blades includes a first opening defined therein. The fixation plate is displaceable between a non-deployed state and a deployed state.
    Type: Application
    Filed: January 16, 2015
    Publication date: July 23, 2015
    Inventors: Shigeru TANAKA, Edward LIOU, Jeffrey D. SMITH, David Michael SCHUMMERS, Brad JONES, Sandeep KUNWAR, Peter WEBER, Bruce M. McCORMACK
  • Publication number: 20150073461
    Abstract: Disclosed herein is a system for releasing a ligament. In one embodiment, the system includes a proximal handle, a tubular body, and a flexible body. The tubular body includes a proximal end and a distal end. The handle is coupled to the proximal end. The flexible body extends through the tubular body and includes a tissue cutting portion. The flexible body or tubular body is longitudinally displaceable to move the tissue cutting portion between a non-deployed state and a deployed state.
    Type: Application
    Filed: May 20, 2014
    Publication date: March 12, 2015
    Applicant: THAYER INTELLECTUAL PROPERTY, INC.
    Inventors: Bruce M. McCORMACK, Edward Fletcher EYSTER, Jeffrey D. SMITH, Edward LIOU, Jonathan CARVER, Peter HOW, Joshua DRUKER, Martin LEUGERS, Shigeru TANAKA, Joseph G. McCORMACK
  • Patent number: D723690
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 3, 2015
    Assignee: Providence Medical Technology, Inc.
    Inventors: Bruce M. McCormack, Edward Liou, Jeffrey D. Smith, David Michael Schummers
  • Patent number: D723691
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 3, 2015
    Assignee: Providence Medical Technology, Inc.
    Inventors: Bruce M. McCormack, Edward Liou, Jeffrey D. Smith, David Michael Schummers
  • Patent number: D732667
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: June 23, 2015
    Assignee: Providence Medical Technology, Inc.
    Inventors: Bruce M. McCormack, Edward Liou, Jeffrey D. Smith, David Michael Schummers
  • Patent number: D745156
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: December 8, 2015
    Assignee: Providence Medical Technology, Inc.
    Inventors: Bruce M. McCormack, Edward Liou, Jeffrey D. Smith