Patents by Inventor David B. Kay
David B. Kay 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: 8394132Abstract: A cannulated compression screw is used as an orthopedic implant and has a threaded distal end with an insertion tip that includes at least one and preferably two, three or four flutes to allow the screw to be self-tapping. Optionally, the screw also includes one or more reverse cutting flutes proximal to the insertion tip. The distal threads are cancellous threads having a generally constant minor diameter and a generally constant major diameter and a generally constant thread pitch. An intermediate portion of the screw is non-threaded and the proximal end includes a compression wedge or taper that has at least one, and preferably two to five flutes that terminate before the top of the screw. The proximal end further includes a radiused bevel to the terminal surface that includes a hexagonal torque driving recess. The diameter of the non-threaded shaft section is constant distal from the compression wedge to the distal tip where it defines the minor diameter of the threaded portion.Type: GrantFiled: September 16, 2008Date of Patent: March 12, 2013Assignee: Orthohelix Surgical Designs, Inc.Inventors: Derek S. Lewis, Deepa Mani, David B. Kay, Amanda Martin
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Patent number: 8257406Abstract: An orthopedic plate is specifically configured for implantation at the mid-foot and can be used for a variety of indications. The plate has a set of tabs comprising one longer tab and one shorter tab opposing each other along the length of the plate. In each set of tabs, one tab includes a compression slot that extends in a direction toward a screw hole in the opposing tab.Type: GrantFiled: February 17, 2009Date of Patent: September 4, 2012Assignee: Orthohelix Surgical Designs, Inc.Inventors: David B. Kay, Dustin Ducharme, Andrew J. Leither
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Publication number: 20120209334Abstract: An orthopedic plate has a first end including a locking screw hole that receives a locking screw and spaced from that hole is a compression housing that extends from the bone-facing side of the plate and which receives a compression screw that forms an angle of from about 10° to about 70° with a longitudinal axis of the plate. In a further embodiment, the plate also includes a second end with a chamfer for insertion of the plate into bone, and in a still further embodiment, the plate is an MTP plate.Type: ApplicationFiled: February 14, 2012Publication date: August 16, 2012Applicant: ORTHOHELIX SURGICAL DESIGNS, INC.Inventors: Derek S. Lewis, Elizabeth Altenau, Gordon Bennett, Bryan D. Den Hartog, Jackson R. Heavener, Jeffrey Johnson, David B. Kay, Brian Hockett
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Patent number: 8231663Abstract: The present invention relates to an orthopedic plate and screw system and instruments for surgical fixation of a small bone or bones including specifically the small bones of the spine. The plate facilitates three dimensional contouring to provide for a variety of applications and to accommodate individual variation in bone shape. The plate has a modified x shape including a central trunk portion including one or more screw holes along a longitudinal axis and a set of divergent upper and an oppositely extending set of divergent lower arms, each arm including screw holes which are placed at a radially equal distance but which diverging asymmetrically from the longitudinal axis relative to its paired upper or lower mate. The screws of the system are self-starting, self-tapping screws including the option of partial or full cannulation. In a further embodiment, the plate is intended for use through the length of the spine.Type: GrantFiled: July 29, 2010Date of Patent: July 31, 2012Assignee: Orthohelix Surgical Designs, Inc.Inventors: David B. Kay, Lee A. Strnad, Dustin Ducharme, G. Martin Wynkoop
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Publication number: 20120184959Abstract: An orthopedic plate is designed for opening osteotomies and includes a contoured double tabbed or butterfly shaped plate portion which can accommodate selective fixation including locking, variable locking and non-locking. The plate also includes a centrally located osteotomy support that maintains the opening between bone segments at a spaced relationship. The support can be integral to the plate, or can be modular, i.e. a separate and adjustable segment which can be changed to accommodate the desired geometry of the osteotomy site.Type: ApplicationFiled: March 10, 2011Publication date: July 19, 2012Applicant: ORTHOHELIX SURGICAL DESIGNS, INC.Inventors: James Price, Bryan D. Den Hartog, Derek S. Lewis, David B. Kay, Michael C. McGlamry, Terry Philbin, Mark Scioli
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Patent number: 8100954Abstract: The present invention relates to an orthopedic plate and screw system and instruments for surgical fixation of a small bone or bones. The plate facilitates three dimensional contouring to provide for a variety of applications and to accommodate individual variation in bone shape. The plate has a modified x shape including a central trunk portion including one or more screw holes along a longitudinal axis and a set of divergent upper and an oppositely extending set of divergent lower arms, each arm including screw holes which are placed at a radially equal distance but which diverging asymmetrically from the longitudinal axis relative to its paired upper or lower mate. The screws of the system are self-starting, self-tapping screws including the option of partial or full cannulation.Type: GrantFiled: June 1, 2010Date of Patent: January 24, 2012Assignee: Orthohelix Surgical Designs, Inc.Inventors: David B. Kay, Lee A. Strnad, Dustin Ducharme, G. Martin Wynkoop
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Patent number: 8057520Abstract: The present invention is a fully contoured calcaneal plate having substantially no planar surfaces except at the origin. The contoured plate includes radiused sections, one extending inferior to superior is curved inferior to superior in a shape which is close to cylindrical and which approximates the shape of the cuboid bone. The second radiused section is curved in the vicinity of the anterior strut, and in particular at the inferior portion of the plate, to accommodate the peroneal tubercle. The plate has a rectangular or modified ovoid body section and a dog boned shaped tail with triangular placed holes for fixation.Type: GrantFiled: July 16, 2007Date of Patent: November 15, 2011Assignee: Orthohelix Surgical Designs, Inc.Inventors: Dustin Ducharme, Bryan D. Den Hartog, Michael C. McGlamry, Bharat M. Desai, David B. Kay, Lee A. Strnad
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Patent number: 8021402Abstract: A distal radius plate having a head with a complex palm shaped profile which flares from the sides of the plate to a leading edge that includes a central oblique linking area that helps to mark the placement of the plate relative to the radius. Further, the plate includes an oblique depression that extends from the rounded pinky side of the head and gradually morphs into the elevated styloid prominence in one diagonal direction, and rises less gradually upward into the lunate prominence on the other side of the head. A proximal plate portion mimics the spiral of the radial bone as it spirals along the longitudinal axis, and includes a tighter radial bend. The head includes holes or bores for pegs which extend into the distal portion of the radius to lock fragments into position. In the first embodiment, the angles of the pegs are fixed. In a second embodiment, one or more of the peg holes are provided with a variable axis locking mechanism assembly and the remaining holes are fixed.Type: GrantFiled: March 5, 2007Date of Patent: September 20, 2011Assignee: Orthohelix Surgical Designs, Inc.Inventors: Amanda Martin, David B. Kay, Lee A. Strnad, G. Martin Wynkoop
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Publication number: 20110009866Abstract: An orthopedic plate is specifically configured for use in osteotomies, in which part of the plate extends into a portion of a first bone segment and part is external to the cortical surface of an adjacent bone segment to fix the segments to allow them to fuse. The plate has a first end and a second end where the end which is inserted into the bone has a chamfer and a through hole having a hole axis optionally at an oblique angle to the longitudinal axis of the plate, and which can receive a screw, peg or pin. The second end of the plate includes a locking screw hole and optionally including a compression slot extending in a direction toward a screw hole in the opposing end. Optionally, the non-locking hole has a shroud that forms an arc or portion of a cylinder over the hole. A plate driver having a recess that holds the plate is used to insert the plate into the bone.Type: ApplicationFiled: July 8, 2010Publication date: January 13, 2011Applicant: OrthoHelix Surgical Designs, Inc.Inventors: Jeffrey Johnson, David B. Kay, Jackson R. Heavener
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Patent number: 7859649Abstract: An adapter and method for through the lens (TTL) laser range sensor probes enables use of a TTL probe of a given exit pupil size to be used with a shared objective lens requiring a entrance pupil size, as entered from the laser range sensor, that is different from the TTL probe exit pupil size. Embodiments of the adapter include optics, such as a first lens and a resolving second lens that expand or contract the TTL laser radiation depending on whether the first lens is a diverging, a negative focal length lens, or a converging, positive focal length lens, and the second lens is converging or diverging, respectively, in a Galilean arrangement. Embodiments also provide a Keplerian arrangement, can function with non-collimated radiation, and can include mirrors to yield a more compact adapter. Additional embodiments include at least one adjustable lens element between the first and second lenses, the at least one adjustable lens element being connected to an actuator for movement along the optical path.Type: GrantFiled: April 27, 2007Date of Patent: December 28, 2010Assignee: Quality Vision International, Inc.Inventors: Eric G. Gesner, David B. Kay, Mehdi N. Araghi
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Publication number: 20100305618Abstract: The present invention relates to an orthopedic plate and screw system and instruments for surgical fixation of a small bone or bones including specifically the small bones of the spine. The plate facilitates three dimensional contouring to provide for a variety of applications and to accommodate individual variation in bone shape. The plate has a modified x shape including a central trunk portion including one or more screw holes along a longitudinal axis and a set of divergent upper and an oppositely extending set of divergent lower arms, each arm including screw holes which are placed at a radially equal distance but which diverging asymmetrically from the longitudinal axis relative to its paired upper or lower mate. The screws of the system are self-starting, self-tapping screws including the option of partial or full cannulation. In a further embodiment, the plate is intended for use through the length of the spine.Type: ApplicationFiled: July 29, 2010Publication date: December 2, 2010Applicant: ORTHOHELIX SURGICAL DESIGNS, INC.Inventors: David B. Kay, Lee A. Strnad, Dustin Ducharme, G. Martin Wynkoop
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Patent number: 7833225Abstract: A partially threaded compression wire with a trocar insertion point is inserted into a first bone fragment and a mating button is crimped into position on the wire to cause compression between the first bone fragment and a second bone fragment. A cannulated instrument applies tension to the wire and crimps the button. In a second embodiment, the wire further includes an internally threaded screw or helix. In the related method, the threaded wire is implanted ante grade or retrograde into the first bone segment and a button is crimped to the wire to apply compression to a second bone segment either cutaneously or percutaneously.Type: GrantFiled: April 23, 2004Date of Patent: November 16, 2010Assignee: Orthohelix Surgical Designs, Inc.Inventor: David B. Kay
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Patent number: 7808617Abstract: A distance detecting arrangement employs at least two sensors having different ranges and resolutions of operation. Embodiments disclosed contemplate at least four modes of operation. In a first mode, only one sensor is employed. In a second mode, a longer range and lower resolution sensor is employed until a threshold value of distance is reached, at which point a shorter range and higher resolution sensor is employed. In a third mode, both the longer range and shorter range sensors are employed simultaneously. In a fourth mode, a low resolution profile is used to rescan the object with the high resolution sensor to provide a high resolution profile measurement. Embodiments facilitate the method disclosed by including a beam redirecting apparatus and preferably include a servo position system that can move the sensors and the object relative to each other.Type: GrantFiled: September 17, 2007Date of Patent: October 5, 2010Assignee: Quality Vision International, Inc.Inventors: Eric G. Gesner, David B. Kay
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Publication number: 20100249851Abstract: The present invention relates to an orthopedic plate and screw system and instruments for surgical fixation of a small bone or bones. The plate facilitates three dimensional contouring to provide for a variety of applications and to accommodate individual variation in bone shape. The plate has a modified x shape including a central trunk portion including one or more screw holes along a longitudinal axis and a set of divergent upper and an oppositely extending set of divergent lower arms, each arm including screw holes which are placed at a radially equal distance but which diverging asymmetrically from the longitudinal axis relative to its paired upper or lower mate. The screws of the system are self-starting, self-tapping screws including the option of partial or full cannulation.Type: ApplicationFiled: June 1, 2010Publication date: September 30, 2010Applicant: ORTHOHELIX SURGICAL DESIGNS, INC.Inventors: David B. Kay, Lee A. Strnad, Dustin Ducharme, G. Martin Wynkoop
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Patent number: 7799061Abstract: The present invention relates to an orthopedic plate and screw system and instruments for surgical fixation of a small bone or bones including specifically the small bones of the spine. The plate facilitates three dimensional contouring to provide for a variety of applications and to accommodate individual variation in bone shape. The plate has a modified x shape including a central trunk portion including one or more screw holes along a longitudinal axis and a set of divergent upper and an oppositely extending set of divergent lower arms, each arm including screw holes which are placed at a radially equal distance but which diverging asymmetrically from the longitudinal axis relative to its paired upper or lower mate. The screws of the system are self-starting, self-tapping screws including the option of partial or full cannulation. In a further embodiment, the plate is intended for use through the length of the spine.Type: GrantFiled: January 26, 2006Date of Patent: September 21, 2010Assignee: Orthohelix Surgical Designs, Inc.Inventors: David B. Kay, Lee A. Strnad, Dustin Ducharme, G. Martin Wynkoop
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Patent number: 7791731Abstract: A partial coherence interferometer incorporates a focusing system for resolving measurement ambiguities. A focus-sensing beam is directed through a common objective with the measurement beam of the interferometer for conveying the beams to and from a test surface. An unambiguous measuring range is equated to a predetermined range of focusing errors.Type: GrantFiled: December 18, 2007Date of Patent: September 7, 2010Assignee: Quality Vision International, Inc.Inventor: David B. Kay
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Patent number: 7771457Abstract: The present invention relates to an orthopedic plate and screw system and instruments for surgical fixation of a small bone or bones. The plate facilitates three dimensional contouring to provide for a variety of applications and to accommodate individual variation in bone shape. The plate has a modified x shape including a central trunk portion including one or more screw holes along a longitudinal axis and a set of divergent upper and an oppositely extending set of divergent lower arms, each arm including screw holes which are placed at a radially equal distance but which diverging asymmetrically from the longitudinal axis relative to its paired upper or lower mate. The screws of the system are self-starting, self-tapping screws including the option of partial or full cannulation.Type: GrantFiled: January 26, 2006Date of Patent: August 10, 2010Assignee: Orthohelix Surgical Designs, Inc.Inventors: David B. Kay, Lee A. Strnad, Dustin Ducharme, G. Martin Wynkoop
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Publication number: 20100069970Abstract: A cannulated compression screw is used as an orthopedic implant and has a threaded distal end with an insertion tip that includes at least one and preferably two, three or four flutes to allow the screw to be self-tapping. Optionally, the screw also includes one or more reverse cutting flutes proximal to the insertion tip. The distal threads are cancellous threads having a generally constant minor diameter and a generally constant major diameter and a generally constant thread pitch. An intermediate portion of the screw is non-threaded and the proximal end includes a compression wedge or taper that has at least one, and preferably two to five flutes that terminate before the top of the screw. The proximal end further includes a radiused bevel to the terminal surface that includes a hexagonal torque driving recess. The diameter of the non-threaded shaft section is constant distal from the compression wedge to the distal tip where it defines the minor diameter of the threaded portion.Type: ApplicationFiled: September 16, 2008Publication date: March 18, 2010Inventors: Derek S. Lewis, Deepa Mani, David B. Kay, Amanda Martin
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Publication number: 20090248087Abstract: A locking mechanism assembly to allow locking of a fastener in an orthopedic implant having its axis at a variable angle relative to the axis of a threaded through opening in the implant. The assembly includes a convexly rounded ring shaped locking insert which mates with the through opening. The head of the fastener includes a concentric flange that engages the locking ring into a locking relationship with the threads of the opening as the fastener is tightened into position. Preferably the locking ring is integral with the head of the fastener. The locking ring is made from a material that is more deformable than the material of the plate.Type: ApplicationFiled: February 26, 2009Publication date: October 1, 2009Applicant: OrthoHelix Surgical Designs, Inc.Inventors: Derek S. Lewis, David B. Kay
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Patent number: D623745Type: GrantFiled: February 17, 2009Date of Patent: September 14, 2010Assignee: Orthohelix Surgical Designs, Inc.Inventors: David B. Kay, Dustin Ducharme, Andrew J. Leither