Patents by Inventor Trevor Land

Trevor Land 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: 20220047274
    Abstract: A surgical sagittal saw for use with a complementary blade assembly that includes a static bar. The saw includes a head over which the blade assembly bar is seated. A coupling rod is able to be mounted to the head to move along the longitudinal axis of the rod. The coupling rod has a head that, as result of the longitudinal movement of the rod is moved towards and away from the head. A blade assembly may be disposed on the saw head adjacent the coupling rod. The coupling rod can be positioned in a run state so that the rod head abuts the bar of the blade assembly so as to hold the blade assembly to the saw head. Alternatively, the coupling rod can be repositioned in a load state the rod head is spaced from the saw head. This allows the blade assembly to be removed and replaced.
    Type: Application
    Filed: October 29, 2021
    Publication date: February 17, 2022
    Applicant: Stryker Corporation
    Inventors: James G. Walen, Robert A. Brindley, Liam Cosgrove, Trevor Land
  • Patent number: 11179163
    Abstract: A cutting system including a surgical saw and a blade assembly is described. The blade assembly may comprising a blade bar, a blade head, and a tag. The tag may comprise a memory containing data related to one or more characteristics of the blade assembly. The surgical saw may comprise a saw processor for receiving data from the tag of the blade assembly and be configured to regulate the operation of the saw based on the one or more characteristics of the blade assembly. The one or more characteristic of the blade assembly comprises may comprise a blade assembly length, a blade geometry, and a blade teeth geometry. A method of navigating a surgical saw is also described. The method may comprise attaching a blade to the saw, touching a pointer to reference points on the blade, and determining the position and orientation of a distal end of the blade.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: November 23, 2021
    Assignee: Stryker Corporation
    Inventors: James G. Walen, Robert Brindley, Liam Cosgrove, Trevor Land
  • Patent number: 11090061
    Abstract: The saw blade comprising a bar and a blade. The distal end of the bar formed with a distal end opening and a discharge port formed in at least one of the top and bottom faces that opens into the distal end opening, the discharge port for discharging debris. The bar is formed with a geometric feature for receiving a coupling member to hold the bar to the saw, the geometric feature being an opening that extends through the bar. The blade having a blade base disposed in the distal end opening of the bar and a blade crown that extends forward from the blade base and forward of the distal end of the bar.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: August 17, 2021
    Assignee: Stryker Corporation
    Inventors: James G. Walen, Robert A. Brindley, Liam Cosgrove, Trevor Land
  • Publication number: 20210177433
    Abstract: The saw blade comprising a bar and a blade. The distal end of the bar formed with a distal end opening and a discharge port formed in at least one of the top and bottom faces that opens into the distal end opening, the discharge port for discharging debris. The bar is formed with a geometric feature for receiving a coupling member to hold the bar to the saw, the geometric feature being an opening that extends through the bar. The blade having a blade base disposed in the distal end opening of the bar and a blade crown that extends forward from the blade base and forward of the distal end of the bar.
    Type: Application
    Filed: February 1, 2021
    Publication date: June 17, 2021
    Applicant: Stryker Corporation
    Inventors: James G. Walen, Robert A. Brindley, Liam Cosgrove, Trevor Land
  • Publication number: 20190231364
    Abstract: A cutting system including a surgical saw and a blade assembly is described. The blade assembly may comprising a blade bar, a blade head, and a tag. The tag may comprise a memory containing data related to one or more characteristics of the blade assembly. The surgical saw may comprise a saw processor for receiving data from the tag of the blade assembly and be configured to regulate the operation of the saw based on the one or more characteristics of the blade assembly. The one or more characteristic of the blade assembly comprises may comprise a blade assembly length, a blade geometry, and a blade teeth geometry. A method of navigating a surgical saw is also described. The method may comprise attaching a blade to the saw, touching a pointer to reference points on the blade, and determining the position and orientation of a distal end of the blade.
    Type: Application
    Filed: April 11, 2019
    Publication date: August 1, 2019
    Applicant: Stryker Corporation
    Inventors: James Walen, Robert Brindley, Liam Cosgrove, Trevor Land
  • Patent number: 10278710
    Abstract: A surgical saw blade is described comprising an elongated blade bar having opposed plates. The blade bar has opposed proximal and distal sections, with the proximal section having a feature for releasably holding the blade bar to a powered surgical sagittal saw. The blade bar plates are spaced apart from each other to form a void space and a primary opening into the void space. A blade head of the surgical saw blade has a base disposed in the blade bar distal section opening that is pivotally mounted in the blade bar distal section void space, and a crown integral with the base that extends through and outside of the blade bar distal section primary opening, the crown being formed with teeth, wherein a thickness of the crown is greater than a thickness of the base to allow the insertion of the blade bar into a kerf cut.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: May 7, 2019
    Assignee: STRYKER CORPORATION
    Inventors: James Walen, Robert Brindley, Liam Cosgrove, Trevor Land
  • Publication number: 20180070958
    Abstract: A surgical saw blade is described comprising an elongated blade bar having opposed plates. The blade bar has opposed proximal and distal sections, with the proximal section having a feature for releasably holding the blade bar to a powered surgical sagittal saw. The blade bar plates are spaced apart from each other to form a void space and a primary opening into the void space. A blade head of the surgical saw blade has a base disposed in the blade bar distal section opening that is pivotally mounted in the blade bar distal section void space, and a crown integral with the base that extends through and outside of the blade bar distal section primary opening, the crown being formed with teeth, wherein a thickness of the crown is greater than a thickness of the base to allow the insertion of the blade bar into a kerf cut.
    Type: Application
    Filed: November 15, 2017
    Publication date: March 15, 2018
    Applicant: Stryker Corportation
    Inventors: James Walen, Robert Brindley, Liam Cosgrove, Trevor Land
  • Patent number: 9060783
    Abstract: A surgical sagittal saw for use with a complementary blade assembly that includes a static bar. The saw includes a head over which the blade assembly bar is seated. A clamp rod is able to mounted to the head to move along the longitudinal axis of the rod. The rod has a head that, as result of the longitudinal movement of the rod is moved towards and away from the head. A blade assembly is disposed on the saw head adjacent the rod. The rod can be positioned in a run state so that the rod head abuts the bar of the blade assembly so as to hold the blade assembly to the saw head. Alternatively, the rod can be repositioned in a load state the rod head is spaced from the saw head. This allows the blade assembly to be removed and replaced. A control member mounted to the saw head controls the movement of the rod. When the rod is moved from the load state to the run state, a biasing member places a force on the rod to hold the rod in the run state.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: June 23, 2015
    Assignee: Stryker Corporation
    Inventors: James G. Walen, Trevor Land
  • Publication number: 20140194882
    Abstract: A surgical sagittal saw for use with a complementary blade assembly that includes a static bar. The saw includes a head over which the blade assembly bar is seated. A clamp rod is able to mounted to the head to move along the longitudinal axis of the rod. The rod has a head that, as result of the longitudinal movement of the rod is moved towards and away from the head. A blade assembly is disposed on the saw head adjacent the rod. The rod can be positioned in a run state so that the rod head abuts the bar of the blade assembly so as to hold the blade assembly to the saw head. Alternatively, the rod can be repositioned in a load state the rod head is spaced from the saw head. This allows the blade assembly to be removed and replaced. A control member mounted to the saw head controls the movement of the rod. When the rod is moved from the load state to the run state, a biasing member places a force on the rod to hold the rod in the run state.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 10, 2014
    Applicant: Stryker Corporation
    Inventors: James G. Walen, Trevor Land
  • Patent number: 8444647
    Abstract: A surgical sagittal saw blade with a static blade bar and to which a blade head is mounted. Distal from the proximal end of the blade bar, the sides of the bar taper outwardly. These outer taper sides facilitate the coupling of the blade bar to the complementary saw used to actuate the blade.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: May 21, 2013
    Assignee: Stryker Corporation
    Inventors: James G. Walen, Robert Brindley, Liam C. Cosgrove, Trevor Land
  • Patent number: 8348951
    Abstract: A surgical sagittal saw blade with a static blade bar shaped to be coupled to a sagittal saw. At least one drive rod extends through the bar. The drive rod is moveable within the blade bar. A blade crown, located outside the distal end opening of the blade bar is connected to the drive rod. The actuation of the drive rod by the saw results in the oscillation of the blade crown. Proximal to the distal end of the blade bar, the bar is formed with secondary openings. When the drive rod and blade crown are actuated, tissue entrained in the blade bar is discharged from the secondary openings.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: January 8, 2013
    Assignee: Stryker Corporation
    Inventors: James G. Walen, Robert Brindley, Liam C. Cosgrove, Trevor Land
  • Publication number: 20070119055
    Abstract: A surgical sagittal saw with an indexing head. The saw actuates a blade assembly that includes a bar from which a blade head extends. An oscillating head extends upwardly from the saw head. The oscillating head, in addition is mounted to the saw head to be able to rotate around its longitudinal axis and so that it can move along the saw head. A biasing spring normally holds the oscillating head in a fixed position. When the oscillating head is in the fixed position, the oscillating head holds the blade assembly against a restraining bracket integral with the saw head. Manual force is used to overcome the biasing spring to allow replacement and removal of the blade assembly.
    Type: Application
    Filed: August 16, 2006
    Publication date: May 31, 2007
    Inventors: James Walen, Robert Brindley, Liam Cosgrove, Trevor Land