Patents Represented by Attorney Michael R. Shevlin
  • Patent number: 8206420
    Abstract: A spinous process device and method are disclosed. The device includes a first plate having a first part slidably coupled to a second part, a second plate having a third part slidably coupled to a fourth part, and first and second connector devices configured to be placed through openings created in spinous processes and rotatably couple respective first and second parts to third and fourth parts of the first and second plates together allowing angular displacement of the second plate with respect to the first plate and secure the spinous processes between the first and second plates.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: June 26, 2012
    Assignee: Alphatec Spine, Inc
    Inventors: Nirali Patel, Thomas Purcell
  • Patent number: 8192466
    Abstract: A conical interspinous apparatus comprising: an insertion portion with a proximal end, a distal end, and conical screw-shaped grooves configured to distract two adjacent spinous processes; a shaft portion, coupled to the distal end of the insertion portion, and having a smaller cross-section than a cross-section at the distal end of the insertion portion, such that the two spinous processes rest on the shaft portion; and a clamp portion being movable and securable along the shaft, and being configured to secure the two spinous processes between the clamp portion and the distal end of the insertion portion.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: June 5, 2012
    Assignee: Alphatec Spine, Inc.
    Inventors: James J. Yue, Jared Arambula, Christian Gabriel Gamboa
  • Patent number: 8172878
    Abstract: A conical interspinous apparatus includes a distractor comprising an insertion portion and a central engagement groove, the insertion portion having a conical shape which tapers to a tip and is adapted to enable passage of the distractor between two spinous processes of vertebrae, and the central engagement groove is adapted to secure the distractor between the two spinous processes such that the two spinous processes rest in the central engagement groove. The conical interspinous apparatus includes a stabilizer which is adapted to be deployed from within the distractor to secure the two spinous processes within the central engagement groove and an insertion driver detachably coupled to a rear portion of the distractor. A guide wire, having a pointed tip, aids in the insertion of the distractor between the two spinous processes and is configured to guide the insertion of the distractor.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: May 8, 2012
    Inventor: James J. Yue
  • Patent number: 8156847
    Abstract: A driver including a handle, lever, swivel cap, shaft, and a tip mechanically connected to the lever configured to engage a screw. Engaging the lever causes the tip to either compress or expand so as to lock the screw to the driver. According to one exemplary embodiment, the cap can be translated releasing the lever, thereby releasing the screw from the tip. According to one embodiment, the cap is a swivel cap allowing for jeweler style use. Advantages of the present system and method, according to various embodiments, include a tip compressing a feature that is within an outer diameter of the screw allowing a driver, or a portion thereof, to have a maximum diameter equal to or smaller than the maximum diameter of a screw.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: April 17, 2012
    Assignee: Alphatec Spine, Inc.
    Inventors: David T. Hawkes, Michael D. Ensign
  • Patent number: 8152714
    Abstract: A curvilinear spinal access device for performing a procedure on a spine of a patient is disclosed. The device includes a working portal configured to be advanced toward a surgical site located at the spine of the patient. The working portal includes a distal end and a proximate end, a working portal housing having an open interior channel disposed between the distal end and the proximate end, an exterior channel disposed on an outside surface of the working portal housing and between the distal end and the proximate end. The distal end is configured to be disposed at the surgical site and the proximate end is disposed away from the surgical site. The housing has a curved shape defined between the proximate end and the distal end, wherein the proximate end is disposed with respect to the distal end. The working channel is configured to allow advancement of at least one surgical tool and/or at least one implant toward the surgical site.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: April 10, 2012
    Assignee: Alphatec Spine, Inc.
    Inventors: Javier Garcia-Bengochea, Jeffrey Allen Guyer, Thomas Purcell
  • Patent number: 8152838
    Abstract: An orthopedic bone fixation device for stabilizing a plurality of bone segments includes a bone plate and a screw assembly. The bone plate includes a body defining at least one thru-bore, wherein the thru-bore is defined to include a central cavity, the central cavity having a middle diameter, an entry diameter, and an exit diameter, the middle diameter being larger than both the entry diameter and the exit diameter. Further, the screw assembly is configured to be coupled to the bone plate, wherein the screw assembly includes a bone screw having a head section, a thread section, and a central bore, an expandable ring coupled to the head section, and a pin at least partially disposed in the central bore, wherein the pin includes a varying outer profile that engages the expandable ring to vary an outer diameter of the expandable ring to lock the screw assembly in the thru-bore.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: April 10, 2012
    Assignee: Alphatec Spine, Inc.
    Inventors: Michael D. Ensign, David T. Hawkes
  • Patent number: 8092498
    Abstract: A surgical implant assembly and a method for securing a fixation rod, where the assembly is capable of being secured to a bone structure are disclosed. The assembly includes at least two rigid structures configured to be secured to the bone structure. The structures include a distal portion for receiving a portion of the fixation rod therebetween, a tab positioned at a distal point of the distal portion, a screw compression nut and a distal expansion member coupled to the screw compression nut that are driven down the rigid structures, and a rod compression nut and a proximal expansion member coupled to the rod compression nut that engage the rigid structures so that the fixation rod is disposed between the combination the screw compression nut and the distal expansion member and the combination of the rod compression nut and the proximal expansion member.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: January 10, 2012
    Assignee: Alphatec Spine, Inc.
    Inventors: Srinath Samudrala, Thomas Purcell
  • Patent number: 8080060
    Abstract: Methods and systems for providing an improved apparatus and packaging system to more expeditiously hydrate or reconstitute medical grafts and to effectively and uniformly seed the medical grafts with biological components and cells. The systems generally comprise a container comprising entry port, at least one substrate cavity, and top, side and bottom walls defining an inner surface. The entry port is configured to receive the biological solution. The cavity is in communication with the entry port and includes the porous substrate maintained under negative pressure. The container volume is substantially the same as a volume of the porous substrate. The side and bottom walls are configured to promote a laminar flow of the biological solution received through the entry port.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: December 20, 2011
    Assignee: Alphatec Spine, Inc.
    Inventors: Amit Govil, Neil Irvin Thompson, Christian Gabriel Gamboa, Sudhanshu Somasundar
  • Patent number: 8075594
    Abstract: A multi-axial rod connector for connecting spinal rods is provided. The rod connector includes a poly-axial rod assembly configured to include a lateral translation mechanism and a fixed hook configured to be rigidly coupled to one end of the poly-axial rod assembly. The fixed hook includes a fixed hook cavity configured to secure a spinal rod. The rod connector also includes a variable hook configured to be rotatably coupled another end of the poly-axial rod. The variable hook includes a variable hook cavity configured to secure another spinal rod. The lateral translation mechanism is configured to change distance between the fixed hook and the variable hook.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: December 13, 2011
    Assignee: Alphatec Spine, Inc
    Inventor: Thomas Purcell
  • Patent number: 8070819
    Abstract: A fixation device including a housing, a shaft and a plurality of blades preloaded onto the shaft. The housing includes a leading deep surface, a trailing outer surface, weight bearing sides, and top and bottom surfaces. The shaft runs from the leading deep surface to the trailing outer surface of the housing. The plurality of blades includes at least one first blade having at least one cutting extension in a first orientation about the axis of the shaft and at least one second blade having at least one cutting extension in a second orientation about the axis of the shaft that is opposite to the first orientation.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: December 6, 2011
    Assignee: Alphatec Spine, Inc.
    Inventors: Joseph Aferzon, Joshua Aferzon
  • Patent number: 7993380
    Abstract: An active compression orthopedic plate includes a first and a second end cross member, at least one center cross member, at least one longitudinal member slideably coupling the first and second end cross member and the at least one center cross member, and a compressive member configured to exert a compressive force on the first and second end cross members.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: August 9, 2011
    Assignee: Alphatel Spine, Inc.
    Inventor: David T. Hawkes
  • Patent number: 7938044
    Abstract: A driver including a handle, lever, swivel cap, shaft, and a tip mechanically connected to the lever configured to engage a screw. Engaging the lever causes the tip to either compress or expand so as to lock the screw to the driver. According to one exemplary embodiment, the cap can be translated releasing the lever, thereby releasing the screw from the tip. According to one embodiment, the cap is a swivel cap allowing for jeweler style use. Advantages of the present system and method, according to various embodiments, include a tip compressing a feature that is within an outer diameter of the screw allowing a driver, or a portion thereof, to have a maximum diameter equal to or smaller than the maximum diameter of a screw.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: May 10, 2011
    Assignee: Alphatec Spine, Inc.
    Inventor: Michael D. Ensign
  • Patent number: 7892266
    Abstract: A bone anchoring device includes a bone anchoring element provided with a head for receiving a threaded shaft on which a clamping means is to be screwed. A spherical articulation is provided between the bone anchoring element and the threaded shaft to provide the threaded shaft with multiple orientations, and a rotational linkage is also provided between the bone anchoring element and the threaded shaft.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: February 22, 2011
    Assignee: Alphatec Spine, Inc.
    Inventor: Olivier Carli
  • Patent number: 7862615
    Abstract: The invention concerns an intervertebral implant that includes a spacer designed firstly to assume an implantation shape in which the spacer has two opposed channels (3, 4) bordered by retaining wings (3a, 3b, 4a, 4b), intended to receive the two spinous processes of two vertebrae, and secondly an insertion shape in which the parts of the implant forming the channels (3, 4) are separated by a value (d), and on at least one of their sides are lacking the retaining wings (3a, 3b, 4a, 4b), characterized in that the implant (1) is made from a shape-memory material, so that the implant changes to its implantation shape when it is subjected to heat, and so that, in this implantation shape, the parts of the implant forming the channels (3, 4) are separated by a value (D) that is greater than the value(d) of the insertion shape, in order to ensure the separation of the spinous processes.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: January 4, 2011
    Assignee: Scient'x
    Inventors: Olivier Carli, Pierre Bernard, Christian Mazel, David Ryan
  • Patent number: 7819920
    Abstract: A vertebral replacement implant includes two longitudinal elements slidably mounted with respect to each other, and locking elements. These locking elements include, on one of the longitudinal elements, an anchor surface, and on the other of the longitudinal elements, an anchor shoe guided in translation to take up a first position in which the elements slide freely with respect to each other, and a second position in which the anchor shoe cooperates with the anchor surface to lock the elements together, with a system converting a rotational movement into a translational movement transmitted to the anchor shoe.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: October 26, 2010
    Assignee: Alphatec Spine, Inc.
    Inventor: Richard Assaker
  • Patent number: 7806912
    Abstract: Embodiments of the present invention are directed to bone alignment rod connectors, and more particularly to traverse rod connectors. In one embodiment, the connector includes a housing having an opening configured to accommodate at least one rod, a setscrew assembly configured to secure the at least one rod when the at least one rod is placed in the opening. The setscrew assembly includes a setscrew and at least one circular/spherical object configured to interact with the setscrew when the setscrew is inserted in the housing. Upon insertion of the setscrew, the at least one spherical object is configured to laterally move towards the at least one rod to secure the at least one rod inside the housing.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: October 5, 2010
    Assignee: Alphatec Spine, Inc.
    Inventors: Laurence Lawton, Thomas Purcell
  • Patent number: 7780594
    Abstract: A retractor is disclosed. The retractor includes a housing, at least one blade holder slidably coupled to the housing, and an actuator handle to control sliding movement of the blade holder. The blade holder and the actuator handle hold at least one blade.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: August 24, 2010
    Assignee: Alphatec Spine, Inc.
    Inventor: Clark Hutton
  • Patent number: 5865768
    Abstract: The present invention is for a guide wire comprising a core wire with a first diameter and the distal end having at least one section having a second, lesser diameter and a radiolucent coil surrounding the distal end at the second core wire diameter with a radiopaque wire located at the distal end within the radiolucent coil and a means for securing the radiopaque wire to the core wire.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: February 2, 1999
    Assignee: Medtronic, Inc.
    Inventor: Gregory C. Orr
  • Patent number: 5853375
    Abstract: A guide wire extension assembly for angioplasty comprising a guide wire and an extension wire that utilize a peg and hole connection. The proximal end of the guide wire and the distal end of the extension wire have connector members attached that allow for mating the ends of the guide wire and extension wire together. In one embodiment the first connector member has a horizontal surface with a hole that is perpendicular to the horizontal surface. The second connector member has a horizontal surface with a peg extending upwardly from the horizontal surface, such that when the first connector member and the second connector member are joined, the peg and the hole fit together. In another embodiment, the first connection member and the second connection member are made from magnetic material so that when the peg is inserted in the hole, it is held in place by magnetic attraction.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: December 29, 1998
    Assignee: Medtronic, Inc.
    Inventor: Gregory C. Orr
  • Patent number: 5701911
    Abstract: A method and apparatus for a guide wire extension docking system for angioplasty including a guide wire and an extension wire to facilitate exchanging a balloon dilatation catheter comprising a guide wire having a proximal end and a distal end, an extension wire having a proximal end and a distal end, a hypotube having a proximal end, a distal end, an inner diameter and an outer diameter, the outer diameter of the hypotube being equal to the diameter of the extension wire, the proximal end of the hypotube being permanently affixed to the distal end of the extension wire, the distal end of the hypotube having a tongue extending distally and a spring coil with a proximal end, a distal end, an inner diameter and an outer diameter, the outer diameter of the spring coil being equal to the outer diameter of the hypotube, the spring coil having a length approximately twice the length of the tongue, the outer diameter of the spring coil being permanently affixed to the tongue such that the proximal end of the spring
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: December 30, 1997
    Assignee: Medtronic, Inc.
    Inventors: Kazuo Sasamine, Garry E. Rupp