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).
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Patent number: 11419647Abstract: 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: GrantFiled: April 17, 2020Date of Patent: August 23, 2022Assignee: DEPUY SYNTHES PRODUCTS, INC.Inventors: Mark P. Grady, Jr., Rene Haag, Scott Didomenico, Kenny Koay, Jeffrey W. Mast, Brett R. Bolhofner, Keith A. Mayo
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Publication number: 20200237420Abstract: 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: ApplicationFiled: April 17, 2020Publication date: July 30, 2020Inventors: Mark P. Grady, JR., Rene Haag, Scott Didomenico, Kenny Koay, Jeffrey W. Mast, Brett R. Bolhofner, Keith A. Mayo
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Patent number: 10653466Abstract: 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: GrantFiled: March 14, 2018Date of Patent: May 19, 2020Assignee: DePuy Synthes Products, Inc.Inventors: Mark P. Grady, Jr., Rene Haag, Scott Didomenico, Kenny Koay, Jeffrey W. Mast, Brett R. Bolhofner, Keith A. Mayo
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Patent number: 10231768Abstract: 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: GrantFiled: February 29, 2016Date of Patent: March 19, 2019Assignee: DePuy Synthes Products, Inc.Inventors: Mark P. Grady, Jr., René Haag, Scott Didomenico, Kenny Koay, Jeffrey W. Mast, Brett R. Bolhofner, Keith A. Mayo
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Publication number: 20160175018Abstract: 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: ApplicationFiled: February 29, 2016Publication date: June 23, 2016Inventors: Mark P. Grady, Jr., René Haag, Scott Didomenico, Kenny Koay, Jeffrey W. Mast, Brett R. Bolhofner, Keith A. Mayo
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Patent number: 9308034Abstract: 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: GrantFiled: June 28, 2013Date of Patent: April 12, 2016Assignee: DePuy Synthes Products, Inc.Inventors: Mark P. Grady, Jr., René Haag, Scott Didomenico, Kenny Koay, Jeffrey W. Mast, Brett R. Bolhofner, Keith A. Mayo
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Patent number: 9161800Abstract: 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: GrantFiled: March 21, 2013Date of Patent: October 20, 2015Assignee: DEPUY SYNTHES PRODUCTS, INC.Inventors: Jeffrey W Mast, Ralph F Polimeni, Jr., John S Sargent
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Publication number: 20130296943Abstract: 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: ApplicationFiled: June 28, 2013Publication date: November 7, 2013Inventors: Mark P. Grady, JR., René Haag, Scott Didomenico, Kenny Koay, Jeffrey W. Mast, Brett R. Bolhofner, Keith A. Mayo
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Patent number: 8425519Abstract: 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: GrantFiled: May 27, 2010Date of Patent: April 23, 2013Assignee: Synthes USA, LLCInventors: Jeffrey W. Mast, Ralph F. Polimeni, Jr., John S. Sargent
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Publication number: 20100312291Abstract: 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: ApplicationFiled: May 27, 2010Publication date: December 9, 2010Inventors: Jeffrey W. MAST, Ralph F. Polimeni, JR., John S. Sargent
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Patent number: 5976141Abstract: 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: GrantFiled: February 23, 1995Date of Patent: November 2, 1999Assignee: Synthes (U.S.A.)Inventors: Rene Haag, Michael H. Mackin, Jeffrey W. Mast, Timothy M. Chadwick
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Patent number: 5810823Abstract: 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: GrantFiled: February 12, 1997Date of Patent: September 22, 1998Assignee: Synthes (U.S.A.)Inventors: Kaj Klaue, Jeffrey W. Mast
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Patent number: 5741258Abstract: 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: GrantFiled: May 27, 1997Date of Patent: April 21, 1998Assignee: Synthes (U.S.A.)Inventors: Kaj Klaue, Jeffrey W. Mast
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Patent number: 5269784Abstract: 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: GrantFiled: February 10, 1992Date of Patent: December 14, 1993Assignee: Synthes (U.S.A.)Inventor: Jeffrey W. Mast