Patents Examined by Thomas C. Barrett
  • Patent number: 8535316
    Abstract: A reamer for medical applications includes an elongated shaft portion and a disposable hollow cutter assembly. The shaft portion's distal end has a coupling portion appointed for attachment to a drilling device, and the proximal end has a threaded portion. The cutter assembly includes a disposable hollow cutter sleeve and a pilot tip. The cutter sleeve has an outer surface and a hollow construction, and is preferably appointed for a single use. In addition, the disposable cutter sleeve portion has a plurality of cutting teeth and a plurality of apertures on the outer surface. The pilot tip has a threaded inner surface and is attached to the disposable cutter sleeve. The cutter assembly is adapted to slide over the proximal end of the shaft portion, thereby enabling the pilot tip to be threaded with the threaded portion of the proximal end of the shaft portion.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: September 17, 2013
    Inventors: Randall J. Lewis, Christopher G. Sidebotham
  • Patent number: 8454605
    Abstract: Locking mechanism for a broken or fractured bone, comprising a medulla nail with a proximal portion which may incorporate perforations and a distal portion, and at least one locking aid, characterized in that the distal portion has a surface structure which is designed so that the bone can be stabilized by means of the medulla nail due to the at least one locking aid acting on the surface structure of the nail through the bone from outside, preferably preventing it from rotating and/or being subjected to axial stress.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: June 4, 2013
    Assignee: M.O.R.E. Medical Solutions GmbH
    Inventor: Hans-Georg Gradl
  • Patent number: 8372152
    Abstract: Spinal fusion system and method utilizing an implant plate and screw, wherein at least one pawl is mounted on or integral with at least one of said plate and becomes operatively related to the screw after the screw is inserted in the implant plate to prevent the screw from moving in at least one of an axial direction or a rotational direction. Other features and embodiments are described and claimed.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: February 12, 2013
    Assignee: X-spine Systems, Inc.
    Inventor: David Louis Kirschman
  • Patent number: 8366718
    Abstract: The invention relates to a preparation device for preparing an intervertebral disc compartment (14) which is delimited by a first and a second vertebra (16, 18). Such a preparation is carried out prior to the insertion of an intervertebral disc prosthesis (110), in order to guarantee a correct positioning of the intervertebral disc prosthesis between the vertebrae (16, 18). The preparation device (10) comprises a reference frame (22), which is capable of being fastened above an operating table (12), and a first fixing element (58) which is capable of being rigidly connected to the first vertebra (16) are capable of being fastened to the reference frame (22) in varying first positions. A second fixing element (68) is capable of being rigidly connected to the second vertebra (18) and capable of being fastened to the reference frame (22) in varying second positions. A material-abrading tool (78) is capable of being fastened to the reference frame (22), preferably in varying positions.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: February 5, 2013
    Inventor: Franz Copf, Jr.
  • Patent number: 8353962
    Abstract: A vertebral defect device, for insertion between a pair of adjacent lumbar or thoracic vertebrae, includes a frame comprised of a generally rigid first material for structural support strength and rapid fixation. The frame has an upper portion and a lower portion. The upper and lower portions are partially convex, spaced from each other and joined together by distal and proximal supports. A housing is comprised of a second material for minimizing interference with imaging. The housing has a convexly tapered distal end and two generally parallel side walls spaced from each other and extending from the tapered distal end. The housing is coupled to the frame by cooperatively surrounding at least a portion of the frame and oriented such that the side walls are generally perpendicular to the upper and lower portions of the frame when assembled.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: January 15, 2013
    Assignee: Concept Matrix, LLC
    Inventor: Walter W. Eckman
  • Patent number: 8292898
    Abstract: Plate shaping tools may be attached to a plate having pre-assembled guides while the plate is located on the bone to effect alteration of the plate shape in an effective and precise manner. The tools are designed such that a drill and K-wires can be inserted through the guides while the tools are coupled to the guides.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: October 23, 2012
    Assignee: Biomet C.V.
    Inventors: Alfredo Castaneda, Joel G. Marquart, Eduardo A. Ampuero, Keith R. Alexander
  • Patent number: 8277399
    Abstract: A patient resuscitation/respiratory system includes a system control unit with a timer module controlling a plurality of air pressure modules. In an exemplary embodiment, the air pressure modules include a first air pressure module for controlling a first flow of pressurized gas from a first pressurized gas supply to an inflatable abdominal cuff, a second air pressure module for controlling a second flow of pressurized gas from the first gas supply to an inflatable chest cuff, and a third air pressure module for controlling a third flow of pressurized gas from the first gas supply to an inflatable leg cuff. The control unit in this embodiment includes a ventilator supply module for controlling a flow of breathable gas from a second pressurized gas supply to a patient ventilator module to periodically connect the patient ventilator module and the patient's lungs to the breathable gas supply.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: October 2, 2012
    Assignee: AutoCPR, Inc.
    Inventors: Robert M. Hamilton, Donald Rulifson, Richard J. Kotalik, Michael G. Flood
  • Patent number: 8257390
    Abstract: A clip for engaging tissue includes a generally annular-shaped body defining a plane and disposed about a central axis extending normal to the plane. The body includes alternating inner and outer curved regions, defining a zigzag pattern about a periphery of the clip. The body is biased towards a planar configuration lying in the plane and deflectable towards a transverse configuration extending out of the plane. Tines extend from the inner curved regions, the tines being oriented towards the central axis in the planar configuration, and parallel to the central axis in the transverse configuration. The tines may include primary tines and secondary tines that are shorter than the primary tines. The primary tines may be disposed on opposing inner curved regions and oriented towards one another such that they overlap in the planar configuration.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: September 4, 2012
    Assignee: Integrated Vascular Systems, Inc.
    Inventors: Michael T. Carley, Richard S. Ginn, Javier Sagastegui, Ronald J. Jabba, William N. Aldrich, W. Martin Belef
  • Patent number: 8257362
    Abstract: The invention relates to a distance measuring instrument for pedicle screws which detects the spacing between two pedicle screws (3, 3?) with the ends (26, 27) of two crossing limbs (11, 12) and displays it on a crossbar (25) fixedly connected to one of the limbs at a scale (22). Since the second limb (12) is divided into a pointer (16a) and into a flexural spring extending parallel to it at which a pronounced thumb grip (21a) is fastened, and since the thumb grip is connected to a scale (24) via which a pre-determined pre-tension can be read off relative to the pointer (16a), a spacing measurement can take place under a controlled pre-tension.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: September 4, 2012
    Assignee: Zimmer GmbH
    Inventors: Simon Casutt, Nimrod Meier, Marc Huber
  • Patent number: 8257409
    Abstract: Described is a reference pin for use during a bone fracture treatment. The pin may include a longitudinal shaft and a spreading member. The longitudinal shaft with a longitudinal axis, a front end, a rear end and a through hole penetrating the shaft from the front end to the rear end. The shaft includes a rear portion adjoining the rear end and an expandable front portion adjoining the front end. The expandable front portion is insertable in a distal locking hole of an intramedullary nail and reversibly expandable transversely to the longitudinal axis. The spreading member is moveably located in the through hole and apt for reversibly expanding the expandable front end portion. The expandable front portion is reversibly expandable within a range between 0.3 mm and 0.5 mm.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: September 4, 2012
    Assignee: Synthes USA, LLC
    Inventors: Andrè Schlienger, Markus Buettler, Peter Senn
  • Patent number: 8241289
    Abstract: A reamer arranged to ream a surface of a bone is provided. The reamer includes a guide portion having a non-reaming lower surface configured to slidably engage a corresponding guide reamed portion of the bone and an eccentric reaming lobe. The reaming lobe extends from part of the periphery of the guide portion. The reaming lobe has a reaming lower surface configured to ream bone outside of the guide reamed portion of the bone when the guide portion is rotated and urged towards the guide reamed portion of the bone. A second reamer may also be provided to form a reaming kit.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: August 14, 2012
    Assignee: Depuy (Ireland)
    Inventor: Robin Maisonneuve
  • Patent number: 8241336
    Abstract: Craniotomy closure systems comprising surgical fasteners and a protective covering over the dura are described for use in reattaching a skull flap removed from the skull of a patient during brain surgery. Methods of using the same are also described. Surgical strips optionally used in combination with the craniotomy closure systems are shaped to follow the perimeter contour of the skull flap. The craniotomy closure systems are designed to encourage bone growth and healing of the skull flap and they can be used to deliver medication and bone growth enhancement materials to the surgical site.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: August 14, 2012
    Assignee: Z&R Medical, L.L.C.
    Inventors: James D. Ralph, Peter A. Zahos, Thomas N. Troxell, Mark Michels
  • Patent number: 8236058
    Abstract: An implant has a first contact surface to contact a first vertebral body endplate and a second contact surface to contact a second vertebral body endplate adjacent the first vertebral body. The implant is deployable, when positioned within an intradiscal space between the first and second vertebral bodies, from a first non-expanded condition where the first contact surface has a first effective footprint area A1 to a second expanded condition where the first contact surface has a second effective footprint area A2. The ratio A2/A1 is at least 1.05.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: August 7, 2012
    Inventors: Henry F. Fabian, Larry A. Cicoretti
  • Patent number: 8236001
    Abstract: The invention relates to an instrument for preparing and/or machining a femoral head (11) embodied on a femoral neck (19). Said instrument comprises tactile forceps (91) that are provided with two forked levers (13, 15) and two tactile jaws (23, 25), each of which is assigned to one of the forked levers (13, 15). The forked levers are interconnected at a fulcrum (93). The inventive instrument features a manipulating end and a working end. The tactile jaws are located at the working end of the instrument. A guiding element (28) is provided which encompasses a centering pin (21) and is mounted and/or guided at least at two points (105, 107) spaced apart from each other in the direction of the centering pin (21) in such a way that the centering pin (21) always lies on a central plane (12) of the tactile forceps (91) regardless of an opening angle of the tactile forceps (91), said central plane (12) containing the fulcrum (93).
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: August 7, 2012
    Assignee: Zimmer GmbH
    Inventors: Roland Willi, Marcel Hinder, Andreas Marchione
  • Patent number: 8236033
    Abstract: Spinal plate assembly, and methods of use, wherein a retaining element such as a retaining band, optionally a resiliently flexible band, mounted to a spinal plate, activates a blocking feature of the spinal plate assembly to thereby prevent the bone fastener from withdrawing out of the spinal plate assembly and past the blocking member. The apertures are typically, but not necessarily, elongate slots, elongate axes of all such slots being commonly oriented. The band can be fabricated from a variety of bio-stable, bio-compatible medical grade materials, including metals or implantable plastics. The retaining element or elements can be disposed in intermittently-located channel elements in the plate.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: August 7, 2012
    Inventor: Kamaljit S. Paul
  • Patent number: 8231635
    Abstract: A polyaxial screwdriver for inserting a bone screw in a vertebra. A polyaxial bone screw assembly includes a coupling element. When a screw engaging end of the polyaxial screwdriver is lowered on the head of the bone screw, the complimentary surfaces of the screw engaging end of the screwdriver and the head of the screw self-align. A ratchet mechanism formed in the screwdriver provides progressive and automatic locking of the polyaxial screwdriver to the coupling element and prevents the accidental unthreading from the coupling element. In another embodiment of the polyaxial screwdriver, a collet slides over the outside surface of the upper end of the coupling element and locks on to the coupling element. In yet another embodiment of a polyaxial screwdriver, the outer sleeve of the polyaxial screwdriver has a split end that securely engages the coupling element.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: July 31, 2012
    Assignee: Stryker Spine
    Inventors: Amir Ali Sharifi-Mehr, Ernie Corrao, Andy Wonyong Choi
  • Patent number: 8231655
    Abstract: Cephalad and caudal vertebral facet joint prostheses and methods of use are provided. The cephalad prostheses are adapted and configured to be attached to a lamina portion of a vertebra without blocking a pedicle portion of the cephalad vertebra. In some embodiments, the prosthesis is attached with a non-invasive support member, such as a clamp. In other embodiments, a translaminar screw may be used for additional fixation.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: July 31, 2012
    Assignee: GMEDelaware 2 LLC
    Inventors: David Stinson, Lawrence R. Jones, Robert M. Scribner, Mark A. Reiley
  • Patent number: 8226655
    Abstract: A distraction assembly for automatically facilitating bone growth which may be required for the application of a dental implant is presented. A drive assembly is dimensioned and configured to be anchored within the mouth of a patient and includes a drive component and a timing assembly collectively disposed and structured to drive at least one displacement member along a predetermined path of travel, wherein the displacement member is connected to a bone segment associated with the implant site. The drive component and timing assembly are further cooperatively structured and disposed to cause incremental advancement of said displacement member along the predetermined path of travel and concurrent displacement of the bone segment relative to the implant site at a constant or otherwise predetermined rate.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: July 24, 2012
    Inventors: Robert Sixto, Jr., Juergen Andrew Kortenbach
  • Patent number: 8226714
    Abstract: Various methods and devices are provided for a graft fixation device for fixing a graft member within a bone tunnel. In one embodiment, a graft fixation device is provided having a radially expandable sheath adapted to be disposed within a bone tunnel, and a sheath expander adapted to be received within the radially expandable sheath to expand the sheath and thereby anchor a graft between the sheath and the bone tunnel. In an exemplary embodiment, the graft fixation device is particularly useful to affix a graft within a femoral tunnel.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: July 24, 2012
    Assignee: DePuy Mitek, Inc.
    Inventors: Charles Beck, Jr., Jose E. Lizardi
  • Patent number: 8226690
    Abstract: Methods, systems, devices and tools for placing bone stabilization components in a patient are provided. The systems and devices have a reduced number of discrete components that allow placement through small incisions and tubes. More particularly, the present invention is directed to systems and methods of treating the spine, which eliminate pain and enable spinal motion, which effectively mimics that of a normally functioning spine. Methods are also provided for stabilizing the spine and for implanting the subject systems.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: July 24, 2012
    Assignee: The Board of Trustees of The Leland Stanford Junior University
    Inventors: Moti Altarac, Joey Reglos, Stanley Kyle Hayes, Daniel H. Kim, J. Christopher Flaherty