Patents by Inventor Jeffrey W. Mast

Jeffrey W. Mast 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: 11419647
    Abstract: The present invention is directed to a bone plate and its method of use for reducing a bone fracture, the bone plate having a longitudinal axis, the bone plate comprising an upper surface, a lower surface, a first hole for engaging a head of a first bone anchor. The first hole is configured and adapted to fix a shaft of the first bone anchor along a first axis. A second hole is spaced apart from the first hole along the longitudinal axis. The second hole is for engaging a head of a second bone anchor, and is configured and adapted to fix a shaft of the second bone anchor along a second axis. The first hole and the second hole are configured such that the first axis and the second axis define a single plane and intersect at a point below the lower surface. The shafts of the first and second bone anchors may touch or nearly touch at the point of intersection, such that the first and second bone anchors form a truss.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: August 23, 2022
    Assignee: DEPUY SYNTHES PRODUCTS, INC.
    Inventors: Mark P. Grady, Jr., Rene Haag, Scott Didomenico, Kenny Koay, Jeffrey W. Mast, Brett R. Bolhofner, Keith A. Mayo
  • Publication number: 20200237420
    Abstract: The present invention is directed to a bone plate and its method of use for reducing a bone fracture, the bone plate having a longitudinal axis, the bone plate comprising an upper surface, a lower surface, a first hole for engaging a head of a first bone anchor. The first hole is configured and adapted to fix a shaft of the first bone anchor along a first axis. A second hole is spaced apart from the first hole along the longitudinal axis. The second hole is for engaging a head of a second bone anchor, and is configured and adapted to fix a shaft of the second bone anchor along a second axis. The first hole and the second hole are configured such that the first axis and the second axis define a single plane and intersect at a point below the lower surface. The shafts of the first and second bone anchors may touch or nearly touch at the point of intersection, such that the first and second bone anchors form a truss.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 30, 2020
    Inventors: Mark P. Grady, JR., Rene Haag, Scott Didomenico, Kenny Koay, Jeffrey W. Mast, Brett R. Bolhofner, Keith A. Mayo
  • Patent number: 10653466
    Abstract: The present invention is directed to a bone plate and its method of use for reducing a bone fracture, the bone plate having a longitudinal axis, the bone plate comprising an upper surface, a lower surface, a first hole for engaging a head of a first bone anchor. The first hole is configured and adapted to fix a shaft of the first bone anchor along a first axis. A second hole is spaced apart from the first hole along the longitudinal axis. The second hole is for engaging a head of a second bone anchor, and is configured and adapted to fix a shaft of the second bone anchor along a second axis. The first hole and the second hole are configured such that the first axis and the second axis define a single plane and intersect at a point below the lower surface. The shafts of the first and second bone anchors may touch or nearly touch at the point of intersection, such that the first and second bone anchors form a truss.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: May 19, 2020
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Mark P. Grady, Jr., Rene Haag, Scott Didomenico, Kenny Koay, Jeffrey W. Mast, Brett R. Bolhofner, Keith A. Mayo
  • Patent number: 10231768
    Abstract: A bone plate includes (a) a body having a first surface which, in an operative configuration, faces away from a bone on which the plate is to be mounted and a second surface, which in the operative configuration, faces the bone, the body including a first section extending along a first longitudinal axis and a second section extending along a second longitudinal axis angled with respect to the first longitudinal axis; (b) a first hole extending through the body from the first surface to the second surface and defining a first hole axis, the first hole being structured to lockingly engage a head of a first bone anchor inserted therein such that a shaft of the first bone anchor extends along the first hole axis; and (c) a second hole extending through the body and spaced apart from the first hole. The second hole defines a second hole axis and is structured to lockingly engage a head of a second bone anchor inserted therein such that a shaft of the second bone anchor extends along the second hole axis.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: March 19, 2019
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Mark P. Grady, Jr., René Haag, Scott Didomenico, Kenny Koay, Jeffrey W. Mast, Brett R. Bolhofner, Keith A. Mayo
  • Publication number: 20160175018
    Abstract: A bone plate includes (a) a body having a first surface which, in an operative configuration, faces away from a bone on which the plate is to be mounted and a second surface, which in the operative configuration, faces the bone, the body including a first section extending along a first longitudinal axis and a second section extending along a second longitudinal axis angled with respect to the first longitudinal axis; (b) a first hole extending through the body from the first surface to the second surface and defining a first hole axis, the first hole being structured to lockingly engage a head of a first bone anchor inserted therein such that a shaft of the first bone anchor extends along the first hole axis; and (c) a second hole extending through the body and spaced apart from the first hole. The second hole defines a second hole axis and is structured to lockingly engage a head of a second bone anchor inserted therein such that a shaft of the second bone anchor extends along the second hole axis.
    Type: Application
    Filed: February 29, 2016
    Publication date: June 23, 2016
    Inventors: Mark P. Grady, Jr., René Haag, Scott Didomenico, Kenny Koay, Jeffrey W. Mast, Brett R. Bolhofner, Keith A. Mayo
  • Patent number: 9308034
    Abstract: A bone plate includes (a) a body having a first surface which, in an operative configuration, faces away from a bone on which the plate is to be mounted and a second surface, which in the operative configuration, faces the bone, the body including a first section extending along a first longitudinal axis and a second section extending along a second longitudinal axis angled with respect to the first longitudinal axis; (b) a first hole extending through the body from the first surface to the second surface and defining a first hole axis, the first hole being structured to lockingly engage a head of a first bone anchor inserted therein such that a shaft of the first bone anchor extends along the first hole axis; and (c) a second hole extending through the body and spaced apart from the first hole. The second hole defines a second hole axis and is structured to lockingly engage a head of a second bone anchor inserted therein such that a shaft of the second bone anchor extends along the second hole axis.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: April 12, 2016
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Mark P. Grady, Jr., René Haag, Scott Didomenico, Kenny Koay, Jeffrey W. Mast, Brett R. Bolhofner, Keith A. Mayo
  • Patent number: 9161800
    Abstract: A device for treating fractures of a bone comprises a plurality of arms, each extending from a proximal end to a distal end and movable in a three-dimensional space, the proximal end of each arm coupled to a frame and a plurality of couplings, each of the couplings coupled to a distal end of each of the plurality of arms, the coupling lockingly receiving a bone fixation element secured to a corresponding bone fragment such that each of the arms is coupled to a corresponding fragment of the bone in combination with a mechanical unit moving each of the arms relative to the frame and a controller receiving data corresponding to a desired final position of the fragments relative to one another and controlling the mechanical unit to move the arms relative to one another to achieve the desired final position of the bone fragments relative to one another.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: October 20, 2015
    Assignee: DEPUY SYNTHES PRODUCTS, INC.
    Inventors: Jeffrey W Mast, Ralph F Polimeni, Jr., John S Sargent
  • Publication number: 20130296943
    Abstract: A bone plate includes (a) a body having a first surface which, in an operative configuration, faces away from a bone on which the plate is to be mounted and a second surface, which in the operative configuration, faces the bone, the body including a first section extending along a first longitudinal axis and a second section extending along a second longitudinal axis angled with respect to the first longitudinal axis; (b) a first hole extending through the body from the first surface to the second surface and defining a first hole axis, the first hole being structured to lockingly engage a head of a first bone anchor inserted therein such that a shaft of the first bone anchor extends along the first hole axis; and (c) a second hole extending through the body and spaced apart from the first hole. The second hole defines a second hole axis and is structured to lockingly engage a head of a second bone anchor inserted therein such that a shaft of the second bone anchor extends along the second hole axis.
    Type: Application
    Filed: June 28, 2013
    Publication date: November 7, 2013
    Inventors: Mark P. Grady, JR., René Haag, Scott Didomenico, Kenny Koay, Jeffrey W. Mast, Brett R. Bolhofner, Keith A. Mayo
  • Patent number: 8425519
    Abstract: A device for treating fractures of a bone comprises a plurality of arms, each extending from a proximal end to a distal end and movable in a three-dimensional space, the proximal end of each arm coupled to a frame and a plurality of couplings, each of the couplings coupled to a distal end of each of the plurality of arms, the coupling lockingly receiving a bone fixation element secured to a corresponding bone fragment such that each of the arms is coupled to a corresponding fragment of the bone in combination with a mechanical unit moving each of the arms relative to the frame and a controller receiving data corresponding to a desired final position of the fragments relative to one another and controlling the mechanical unit to move the arms relative to one another to achieve the desired final position of the bone fragments relative to one another.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: April 23, 2013
    Assignee: Synthes USA, LLC
    Inventors: Jeffrey W. Mast, Ralph F. Polimeni, Jr., John S. Sargent
  • Publication number: 20100312291
    Abstract: A device for treating fractures of a bone comprises a plurality of arms, each extending from a proximal end to a distal end and movable in a three-dimensional space, the proximal end of each arm coupled to a frame and a plurality of couplings, each of the couplings coupled to a distal end of each of the plurality of arms, the coupling lockingly receiving a bone fixation element secured to a corresponding bone fragment such that each of the arms is coupled to a corresponding fragment of the bone in combination with a mechanical unit moving each of the arms relative to the frame and a controller receiving data corresponding to a desired final position of the fragments relative to one another and controlling the mechanical unit to move the arms relative to one another to achieve the desired final position of the bone fragments relative to one another.
    Type: Application
    Filed: May 27, 2010
    Publication date: December 9, 2010
    Inventors: Jeffrey W. MAST, Ralph F. Polimeni, JR., John S. Sargent
  • Patent number: 5976141
    Abstract: A threaded insert is designed to snap into a standard bone plate hole. The insert has an upper section divided into sectors by slots, a lower section having deflectable tabs with external projections, and a central threaded hole. When a standard bone screw is tightened in the insert, the insert rigidly fixes the screw to the plate by collapsing the threads of the insert onto the threads of the screw, and by expanding the sectors of the upper section to clamp the bone plate.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: November 2, 1999
    Assignee: Synthes (U.S.A.)
    Inventors: Rene Haag, Michael H. Mackin, Jeffrey W. Mast, Timothy M. Chadwick
  • Patent number: 5810823
    Abstract: A lock washer for attaching a bone screw to a bone plate. The lock washer includes a body having a central axis and a borehole having internal threading for receiving the bone screw. The lock washer includes a lower section adapted to abut the surface of a bone, and an upper section shaped to be retained in a plate borehole. An osteosynthetic system including a bone plate having an upper surface, a lower surface to be positioned facing the bone, and a lock washer is also disclosed. In addition, an osteosynthetic bone plate having an upper surface, a lower surface, and boreholes extending through the bone plate from the upper surface to the lower surface is disclosed. Boreholes are provided with hollow protrusions extending beyond the lower surface of the bone plate and having an internal threading for receiving a bone screw.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: September 22, 1998
    Assignee: Synthes (U.S.A.)
    Inventors: Kaj Klaue, Jeffrey W. Mast
  • Patent number: 5741258
    Abstract: A lockwasher is provided for attaching a bone screw to a bone plate, thus making up an osteosynthetic system. The washer has a threaded screw hole, a lower section with a surface to be applied to a bone and an upper section shaped to be retained in a plate borehole, the lower section being of less than average width than the upper section.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: April 21, 1998
    Assignee: Synthes (U.S.A.)
    Inventors: Kaj Klaue, Jeffrey W. Mast
  • Patent number: 5269784
    Abstract: This screw nut (1) is designed for the rigid fixation of a bone screw (15) to a bone plate (20) having plate holes (21). It has a generally cylindrical body (5,6) with a central axis (2), a central hole (3) with a hole axis (34) and an internal thread (4) designed to receive a bone screw (15). The body (5,6) comprises of a lower section (5), an upper section (6), a lower side (9) and an upper side (10). The profile (7) of the upper section (6) orthogonal to said hole axis (34) is smaller than the profile (8) of the lower section (5) orthogonal to said hole axis (34) and the upper section (6) is shaped to be insertable into the plate hole (21) of the bone plate (20).
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: December 14, 1993
    Assignee: Synthes (U.S.A.)
    Inventor: Jeffrey W. Mast