Patents Examined by David O. Reip
  • Patent number: 7267678
    Abstract: An implant for fracture fixation having external portion shaped to be externally engaged on and secured to a stable bone fragment on one side of a bone fracture and an integral internal portion sized and shaped for being inserted into and accommodated in an intramedullary canal of an unstable bone fragment on an opposite side of the fracture. The internal portion has an end with a rounded tip of bullet-shape for fitting in an apical space at an endosteal surface of the unstable bone fragment to provide a bearing support for the unstable bone fragment over a large area.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: September 11, 2007
    Inventor: Robert J. Medoff
  • Patent number: 7131973
    Abstract: Bone anchor implantation devices and methods for their use are disclosed. The bone anchor implantation devices have an ergonometric and/or rotatable handle. The bone anchor implantation devices and methods find particular application for implanting a bone anchor for maintaining or improving urinary continence by suspending or stabilizing the bladder neck.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: November 7, 2006
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Keith Hoffman
  • Patent number: 7112211
    Abstract: A system for performing an end-to-side vascular anastomosis. including an anastomosis device, an application instrument and methods for performing a vascular anastomosis. The system is applicable for performing an anastomosis between a vascular graft and the ascending aorta in coronary artery bypass surgery, particularly in port-access CABG surgery. A first aspect of the invention includes a vascular anastomosis staple. A first configuration has two parts: an anchor member, forming the attachment with the target vessel wall and a coupling member, forming the attachment with the bypass graft vessel. The anastomosis is completed by inserting the coupling member, with the graft vessel attached, into the anchor member. A second configuration combines the functions of the anchor member and the coupling member into a one-piece anastomosis staple.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: September 26, 2006
    Assignee: Heartport, Inc.
    Inventors: Hanson S. Gifford, III, Lee R. Bolduc, Jeffrey A. Stein, Paul C. DiCesare, Peter F. Costa, William A. Holmes
  • Patent number: 7104991
    Abstract: A device and a method for stabilizing vertebrae in a human spine for the purpose of fixing one vertebra with respect to other vertebrae and with respect to other parts of the spinal column. This device comprises bone screws that clamp to a plate to maintain the plate in contact with the vertebrae. The device may be fabricated from non-metals, metal, alloys, or composite materials. A tapered screw head is pulled into the plate with the taper extending through the plate into the underlying bone. Extending the taper into the bone moves the screw thread stress raiser into an area of lesser deflection. This strengthens the fixation by increasing the rigidity and reducing the risk of screw breakage. Extending the taper into the underlying bone has also been shown to strengthen the taper lock.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: September 12, 2006
    Inventors: Robert A Dixon, Donald J. Hackman
  • Patent number: 7094239
    Abstract: A screw formed of cortical bone for use in the human body with an implant having a screw hole for receiving at least a portion of a screw therethrough, includes a shaft with a thread along at least a portion of its length. The thread has an outer diameter dimensioned to pass through the screw hole in the implant. The trailing end of the screw is configured to cooperatively engage at least a portion of the screw hole of the implant so as to prevent the screw from linear motion along the mid-longitudinal axis of the shaft in a direction opposite to the direction of insertion when the screw is threaded through the screw hole to attach the implant to a bone portion of the human body. The screw is formed substantially of cortical bone of a single cortical thickness.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: August 22, 2006
    Assignee: SDGI Holdings, Inc.
    Inventor: Gary K. Michelson
  • Patent number: 7087057
    Abstract: The present invention generally provides a polyaxial fixation device having a shank with a spherical head formed on a proximal end thereof, and a receiver member having an axial passage formed therein that is adapted to polyaxially seat the spherical head of the shank. The polyaxial bone screw further includes an engagement member that is adapted to provide sufficient friction between the spherical head and the receiver member to enable the shank to be maintained in a desired angular orientation before locking the spherical head within the receiver member.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: August 8, 2006
    Assignee: DePuy Acromed, Inc.
    Inventors: David D. Konieczynski, Thomas Vincent Doherty, Dale Whipple, Niall Casey, Mark Hall
  • Patent number: 7087055
    Abstract: A minimaly invasive spacer for positioning between vertebral members. The spacer is adjustable between a first orientation having a reduced size to facilitate insertion between the vertebral members. A second orientation has an enlarged size for contacting the vertebral members. The spacer includes linkages that are attached to a pair of plates. A pull arm is operatively connected to the linkages for adjusting the spacer from the first orientation to the second orientation. A delivery device is attached to the spacer for insertion between the vertebral members. In one embodiment, the delivery device is detachable to be removed from the spacer once positioned between the vertebral members. Methods of using the spacer include positioning the spacer between the vertebral members while in the first orientation. The spacer is then enlarged to the second orientation, and the delivery device is removed with only the spacer remaining within the patient.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: August 8, 2006
    Assignee: SDGI Holdings, Inc.
    Inventors: Roy Lim, Michael C. Sherman, Kevin T. Foley
  • Patent number: 7083625
    Abstract: A milling instrument assembly (15) is provided for vertebral endplate preparation along a cutting path obliquely oriented to the axis of approach to the vertebra. The milling instrument assembly (15) provides control of the anterior-posterior depth of endplate removal by guiding cutting assembly (120) in the disc space as it moves transversely across a housing assembly (16.) Methods and techniques are included for using the milling instrument assembly (15) in spinal surgery.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: August 1, 2006
    Assignee: SDGI Holdings, Inc.
    Inventor: Bret M. Berry
  • Patent number: 7083621
    Abstract: The present invention relates generally to systems and methods for aligning and implanting orthopedic fixation or stabilization implants within the body. In one embodiment, the system includes at least two bone anchors, at least one of which is provided with a transverse portal and a locking member. In one aspect, the system also includes at least one linkage rod, for linking two or more bone anchors through their respective locking members. The linking rod may include at least one angularly adjustable joint, which may be fixed by actuating the locking member. The bone anchors and the linkage rod may be locked into place to form a spinal fusion or fixation prosthesis.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: August 1, 2006
    Assignee: SDGI Holdings, Inc.
    Inventors: Samuel M. Shaolian, Thanh Van Nguyen, To V. Pham, George P. Teitelbaum
  • Patent number: 7077844
    Abstract: The present invention is directed to a segmentable plating system which can be made to a selected length by the surgeon.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: July 18, 2006
    Assignee: SDGI Holdings, Inc.
    Inventor: Gary K. Michelson
  • Patent number: 7074221
    Abstract: Anatomically contoured anterior cervical plates with bone ingrowth surfaces, providing for intersegmental compressive preloading, and a rigid and locked interface to all of the bone screws, with those engaging the vertebrae deployed in highly convergent pairs. The bone screws have a tapered self-tapping leading end, an increasing root diameter with a generally constant outer diameter with a thread that is narrow and sharp throughout and an enlarged head portion capable of an interference fit to the receiving holes of the plate. Instrumentation consists of plate holders, a compression apparatus and a pilot hole forming device that interlocks with the plate. Methods for spinal compression and bone hole preparation are provided.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: July 11, 2006
    Assignee: SDGI Holdings, Inc.
    Inventor: Gary K. Michelson
  • Patent number: 7070599
    Abstract: Bone support assemblies, methods of fabrication, and methods of use. Such assemblies comprises locking structures assembled to bone support plates. The locking structure comprises elongate bands biased against each other. The bands extend into apertures in the plate. The bands automatically respond to side forces applied by interfering elements of bone fasteners driven through the apertures, by moving away from the interfering elements, and returning to blocking positions over the interfering elements after the interfering elements pass the bands. Methods of fabrication include inserting the locking structure longitudinally into the channel and optionally extending locking studs through the plate and engaging the locking structure. Methods of use include advancing interfering elements of the bone fasteners through the apertures and past the bands.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: July 4, 2006
    Inventor: Kamaljit S. Paul
  • Patent number: 7070598
    Abstract: A minimaly invasive spacer for positioning between vertebral members. The spacer is adjustable between a first orientation having a reduced size to facilitate insertion between the vertebral members. A second orientation has an enlarged size for contacting the vertebral members. The spacer includes linkages that are attached to a pair of plates. A pull arm is operatively connected to the linkages for adjusting the spacer from the first orientation to the second orientation. A delivery device is attached to the spacer for insertion between the vertebral members. In one embodiment, the delivery device is detachable to be removed from the spacer once positioned between the vertebral members. Methods of using the spacer include positioning the spacer between the vertebral members while in the first orientation. The spacer is then enlarged to the second orientation, and the delivery device is removed with only the spacer remaining within the patient.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: July 4, 2006
    Assignee: SDGI Holdings, Inc.
    Inventors: Roy Lim, Kevin T. Foley, Michael C. Sherman
  • Patent number: 7070601
    Abstract: Disclosed is a bone fracture fixation system, such as for reducing and compressing fractures in the proximal femur. The fixation system includes a plurality of elongated bodies with a helical cancellous bone anchor on a distal end of each of the bodies. An axially moveable plate with a plurality of openings is carried by the proximal end of the elongated bodies. The elongated bodies are rotated into position across the fracture or separation between adjacent bones and into the adjacent bone or bone fragment, and the plate is distally advanced to apply secondary compression and lock the device into place. The device may also be used for soft tissue attachments.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: July 4, 2006
    Assignee: Triage Medical, Inc.
    Inventors: Brad S. Culbert, Bruce E. Stevens
  • Patent number: 7066953
    Abstract: Graft delivery systems and methods for performing a cardiac by-pass procedure using a graft or a mammary artery are described. A combination of catheters and guide devices through the aorta, coronary artery, and the thoracic region can be used to accomplish these procedures.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: June 27, 2006
    Inventor: Todd K. Rosengart
  • Patent number: 7066940
    Abstract: A surgical instrument for the dissection of bone and other tissue includes a spindle, a dissection tool and a male member carried by the spindle. The spindle includes a cavity. The dissection tool is releasably received in the cavity. The dissection tool extends along an axis and includes a first end and a second end with the first end having a cutting element and a second end having a generally cylindrical cross-section and a centrally located aperture partially extending along the axis. The male member is carried by the spindle and extends into the aperture of the dissection tool.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: June 27, 2006
    Assignee: Medtronic, Inc.
    Inventors: Danny C. Riedel, Durrell G. Tidwell, Bryan David Simmons, Larry Dale Estes, Allen P. Hilton, Rex Wesley Shores, John K. Henderson, James Q. Spitler, Michelle L. Walker, Dana A. Eskridge, Dennis L. Foster, Douglas W Haight, Laura A. Kriese, Stephen G Savage
  • Patent number: 7063701
    Abstract: A screw formed of cortical bone for use in the human body with an implant having a screw hole for receiving at least a portion of a screw therethrough, includes a shaft with a thread along at least a portion of its length. The thread has an outer diameter dimensioned to pass through the screw hole in the implant. The trailing end of the screw is configured to cooperatively engage at least a portion of the screw hole of the implant so as to prevent the screw from linear motion along the mid-longitudinal axis of the shaft in a direction opposite to the direction of insertion when the screw is threaded through the screw hole to attach the implant to a bone portion of the human body. The screw is formed substantially of cortical bone of a single cortical thickness.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: June 20, 2006
    Assignee: SDGI Holdings, Inc.
    Inventor: Gary K. Michelson
  • Patent number: 7060075
    Abstract: In a distal targeting system a hand-held location pad is integral with a guide section for a drill or similar surgical instrument, and has a plurality of magnetic field generators. A sensor, such as a wireless sensor, having a plurality of field transponders, is disposed in an orthopedic appliance, such as an intramedullary nail. The sensor is capable of detecting and discriminating the strength and direction of the different fields generated by the field generators. Control circuitry, preferably located in the location pad is responsive to a signal of the sensor, and determines the displacement and relative directions of an axis of the guide section, and a bore in the orthopedic appliance. A screen display and optional speaker in the location pad provide an operator-perceptible indication that enables the operator to adjust the position of the guide section so as to align its position and direction with the bore.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: June 13, 2006
    Inventors: Assaf Govari, Avinoam Dayan, Dale G. Davison, Thomas G. Ferro
  • Patent number: 7060070
    Abstract: A locking nail for treating fractures of tubular bones has two parallel cross-bores that are axially spaced apart provided on the distal end of said nail and optionally at least one additional cross-bore is provided on the proximal end thereof for receiving bone screws. The nail includes a groove which is parallel to a longitudinal axis of the nail is formed into the outer side of the nail. The groove extends into the distal bores on both sides and merges into the bore. The longitudinal axis of the groove intersects the axis of each cross-bore.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: June 13, 2006
    Assignee: Stryker Trauma GmbH
    Inventors: George Anastopoulos, Paul Bernd Robioneck
  • Patent number: RE39325
    Abstract: A spine fixation apparatus and method including at least one longitudinal rod mounted parallel to the axis of the spine and having a plurality of stem clamps adjustably mounted to the longitudinal rod. Each stem clamp has a stem extending outwardly therefrom with the diameter of the stem being identical to the diameter of the longitudinal rod. A plurality of C-clamps are provided and are mounted to the stems and to the longitudinal rods. A plurality of bone pins are provided and are used to preliminarily mount the spinal fixation construct to the spine to allow the surgeon to determine by X-ray the accuracy of the construct with regard to the spine. A plurality of innovative bone screws are used to simultaneously anchor the C-clamps to the bone and to the respective stem and longitudinal rod. The bone screws are configured with a smaller diameter at the distal end having threads thereon for threadedly engaging the underlying bone.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: October 3, 2006
    Inventor: Donald W. Bryan