External Fixation Means Patents (Class 606/54)
  • Publication number: 20080021451
    Abstract: An external fixator for treating a fracture of a long bone has six extension arms which are extendable out of and retractable into a main body. The six extension arms are arranged into two sets of three, with each set of three extension arms being able to support a fixation ring. Each extension arm is pivotable at a joint and extendable so as to allow the ring to be set at a wide range of angular positions relative to the main body. The three extension arms and the ring each define a wrap angle about the axis of the long bone being treated. The longitudinal position of each extension arm can be changed either with a coarse adjustment capability or with a fine adjustment capability, with the coarse adjustment capability being through rotation of a thumb wheel. The six extension arms are also arranged into three opposing pairs, with each pair of extension arm shafts is disposed in an abutting relationship in the main body such that the extension arm shafts extend or retract out opposing sides of the main body.
    Type: Application
    Filed: April 20, 2007
    Publication date: January 24, 2008
    Applicant: MILLENNIUM MEDICAL TECHNOLOGIES, INC.
    Inventors: Thomas Coull, Lon S. Weiner
  • Patent number: 7311711
    Abstract: A distractor frame comprises an upper pin, a lower pin positioned substantially parallel to the upper pin, a pair of adjustment mechanisms, wherein each adjustment mechanism couples to the upper pin and the lower pin such that each adjustment mechanism is positioned generally perpendicular to the upper and lower pins, wherein each adjustment mechanism comprises a shaft, a first pin connector for coupling the upper pin to the shaft, a threaded rod coupled to an end of the shaft, a cylindrical sleeve adapted for threadedly engaging the threaded rod, such that a portion of the shaft and a portion of the threaded rod may be positioned within the cylindrical sleeve, and a second pin connector coupled to the cylindrical sleeve for coupling the lower pin.
    Type: Grant
    Filed: December 21, 2002
    Date of Patent: December 25, 2007
    Inventor: J. Dean Cole
  • Patent number: 7291148
    Abstract: Bone fragments resulting from a Colles' fracture of the distal radius bone are set in position by an external fixator that includes mounting structures attachable to the radius at a site proximal to the fracture and to a metacarpal, joined by a connector whose length is capable of both gross adjustment and precision adjustment, each mounting structure providing degrees of freedom independently of the connector length, the mounting structure at the radius end providing independent degrees of freedom for rotation around a proximal-distal axis and for rotation about an axis transverse to an axis parallel to the proximal-distal axis.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: November 6, 2007
    Assignee: John M. Agee Trustee of the John M. Agee Trust
    Inventors: John M. Agee, Francis C. King
  • Patent number: 7252669
    Abstract: The present invention 10 discloses a bridge cap comprising a compressible resilient material having a substantially oval shape with a planar surface on the distal ends 24 thereof. The bridge cap 10 has a cavity 28 with a pliable material 30 therein whereby the bridge cap can be releasably positioned on protruding pins 16 such that the pins extending from the fixator devices can be covered to prevent inadvertent potentially damaging contact with the protruding pins especially while sleeping.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: August 7, 2007
    Inventor: John McIntyre
  • Patent number: 7240677
    Abstract: Controlling the transformation of the microstructure of shape memory material implants. A surgeon can use the inventive energy delivery device to control the rate of implant shape change, the extent of implant shape change, as well as the force exerted on the surrounding tissue. The invention allows for the fine control of force when fixating osteoporotic bone and rate of bone transport. This system models or measures the heating profile of the implant and provides the surgeon a method to control the extent of microstructure phase transformation so that the rate, force or extent of tissue movement can be controlled individually or together.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: July 10, 2007
    Assignee: BioMedical Enterprises, Inc.
    Inventor: William Casey Fox
  • Patent number: 7169149
    Abstract: A device for external fixation of a fracture of the proximal end of the ulna includes an frame having a distal elongated portion extending below the ulna, holding a number of pins extending upward into the shaft portion, and a proximal portion extending rearward, and upward around the proximal end of the ulna, holding a medullar pin extending into a medullar channel and a number of pins extending into fragments of the fractured ulna.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: January 30, 2007
    Assignee: Phoenix Orthopaedic Corporation
    Inventor: Mohammed Ali Hajianpour
  • Patent number: 7147639
    Abstract: A novel disposable axial external fixation device for reducing bone fractures, of the type comprising an extendible rod-like middle body and oppositely located bone screw clamps which are articulated to the respective ends of the rod like middle body by means of ball joints. Advantageously, a ball-and-socket joint is mounted to each clamp within a main body with which a clamping mechanism for clamping bone screws clamping is associated or co-operates. Also provided is an ancillary member adapted for releasable association with one end of each clamp to better adapt each clamp for use in different conditions of installation of the fixation device.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: December 12, 2006
    Assignee: Orthofix S.r.l.
    Inventors: Sandor Berki, Antal Insperger, Daniele Venturini
  • Patent number: 7144378
    Abstract: The present invention provides a torquer for maneuvering a medical guidewire during endovascular surgical procedures or the like, which can be easily positioned and re-positioned along the length of the wire. A clamp-like device is formed with a top arm and a bottom arm connected to one another by means of a flap hinge. A horizontal slit is defined within the flap hinge, and a vertical slit is defined on a clamping tongue positioned at the top distal end of the top arm, such that the torquer is placed onto the guidewire and snapped into place with the guidewire penetrating the vertical slit. A wire channel means is further defined between the two arms to hold the guidewire within the torquer.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: December 5, 2006
    Inventor: Richard J. Arnott
  • Patent number: 6964663
    Abstract: A combination bone fixation/immobilization apparatus is adapted to stabilize a patient's foot and ankle. A foot plate is adapted to have one or more transfixation wires or pins or screws fixed thereto. A substantially rigid leg support assembly is adapted to receive a patient's leg, the leg support comprising a cuff and a strap adapted to secure the cuff around the patient's leg. The leg support is rigidly attached to the foot plate. A patient's foot may thereby be fixed with transfixation wires, or pins or screws and simultaneously immobilized with respect to the ankle and lower leg.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: November 15, 2005
    Assignee: EZ Concepts Surgical Device Corporation
    Inventors: William Peter Grant, Laurence Glenn Rubin, Steve Cook, Guy Richard Pupp
  • Patent number: 6942664
    Abstract: A clamp for the rapid and accurate positioning of a threaded fixation pin has a central body defining a channel therethrough for receiving a fixation pin. The clamp also includes a locking member with a lower surface adapted to engage and mate with the threads of the fixation pin. Thus, the fixation pin can be rapidly inserted into the desired bone structure by rotating the fixation pin, and as the fixation pin is rotated, it also advances forward due to the engagement of the threads of the fixation pin with the locking member of the clamp. If the forward advance caused by the engagement of the threads of the fixation pin with the locking member can not keep pace with the cutting action, the resultant resistance to insertion in the form of a rearward directed force will cause the locking member to rise up and disengage the threads of the fixation pin.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: September 13, 2005
    Assignee: University of Louisville Research Foundation, Inc.
    Inventors: Michael J. Voor, Seid W. Waddell
  • Patent number: 6893447
    Abstract: A surgical fixation device for mounting a stereotactic reference frame to a patient. The device includes a mounting bracket assembly, a cannulated post, a base, an anchor tube, a plurality of percutaneous pins, and a driving device. The mounting bracket assembly is connected to a top portion of the post, whereas the base is slidably coupled to a bottom portion of the post, and defines a plurality of legs. The anchor tube extends distally from the post. The percutaneous pins extend distally from the legs, respectively. Finally, the driving device is connected to the post and is adapted to selectively contact the base. Upon final assembly, the base is longitudinally moveable relative to the anchor tube. The base can be moved to a retracted position such that the anchor tube is readily securable to a bony structure of the patient's anatomy. Once secured, the base can be moved distally such that the percutaneous pins engage the bony structure as well, thereby promoting overall stability of the device.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: May 17, 2005
    Assignee: Medtronic, Inc.
    Inventors: Leonel Dominguez, Michael S. Ferrell, Prasad Nalluri
  • Patent number: 6840939
    Abstract: The invention relates to a new type of axial unilateral external splint device for stabilizing bone fractures, comprising an extendible rod-like middle body (2) and oppositely located bone screw clamps (5, 6) which are articulated to respective ends (3, 4) of the rod-like middle body (2) by means of ball joints. Advantageously, a ball-and-socket joint (16) is mounted to each clamp (5, 6), within a main body (20) with which a bone screw clamping arrangement (25, 26, 21, 22, 23) is associated or co-operates. Also provided are ancillary members (30) adapted for removable association with the end of each clamp (5, 6) to allow each clamp to be more suitable for use, depending on the different operative installation conditions of the fixator.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: January 11, 2005
    Assignee: Orthofix S.r.l.
    Inventors: Daniele Venturini, Michele Coati, Luigi Rossi
  • Publication number: 20040249375
    Abstract: Bone fragments resulting from a Colles' fracture of the distal radius bone are set in position by an external fixator that includes mounting structures attachable to the radius at a site proximal to the fracture and to a metacarpal, joined by a connector whose length is capable of both gross adjustment and precision adjustment, each mounting structure providing degrees of freedom independently of the connector length, the mounting structure at the radius end providing independent degrees of freedom for rotation around a proximal-distal axis and for rotation about an axis transverse to an axis parallel to the proximal-distal axis.
    Type: Application
    Filed: June 3, 2003
    Publication date: December 9, 2004
    Applicant: THE JOHN M. AGEE TRUST
    Inventors: John M. Agee, Francis C. King
  • Patent number: 6790208
    Abstract: A slider 37 having a rod-pressing portion 35 for pressing a rod 23 into a rod-engaging recess 25 is movably provided on a holder body 27 having the rod-engaging recess 25. The holder body 27 includes a pressing state holding mechanism for relatively moving the slider 37 with respect to the holder body 27 to hold the rod 23 in a state in which the rod 23 is pressed against the rod-engaging recess 25 by the rod-pressing portion 35. The pressing state holding mechanism includes a screw rod movably, detachably and threadedly engaged with a screw hole formed in the holder body 27. A tip end of the screw rod 45 and the slider 37 connected to each other such that they permit rotation of the screw rod 45 with respect to the slider 37 but move integrally with respect to the holder body 27, and the slider 37 can be attached to and detached from the slider 37.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: September 14, 2004
    Assignee: Showa Ika Kohgyo Co., Ltd.
    Inventors: Kazuya Oribe, Masato Tomita, Hiroshi Takamido, Noriyuki Ina
  • Publication number: 20040153066
    Abstract: The present invention comprises a set of instruments and a method for their use in preparing a knee joint to receive knee implants. The inventive instruments and method are generally suitable for knee joint surgery. Furthermore, they include features that make them suitable for performing a minimally invasive knee surgery in which a smaller than normal incision is made and oriented to preserve the quadriceps mechanism and protect the suprapatellar pouch. The instruments permit switching from a minimally invasive technique to a standard open technique at any point in the procedure. An illustrative set of instruments for total knee arthroplasty and an associated minimally invasive technique are described.
    Type: Application
    Filed: February 3, 2003
    Publication date: August 5, 2004
    Inventors: Thomas M. Coon, E. Marlowe Goble, Alfred J. Tria, Warren Scott Gareiss, Robert A. Hodorek, Toby N. Farling, Daniel F. Justin, Donald M. Smucker, Richard R. Van Zile
  • Publication number: 20040138659
    Abstract: Apparatuses and methods for externally fixing and precisely adjusting fractures, such as fractures near the ankle, are disclosed. In one embodiment, an external fixation apparatus includes a first member attachable to a first bone segment through pins, a second member coupled to the first member through a lockable ball joint, wherein first and second ends of the second member may be translated transversely relative to a longitudinal axis of the second member, and a pin clamp coupled to and rotatable about the second member through a lockable joint and attachable to a second bone segment. The pin clamp and the second member may be releasably coupled.
    Type: Application
    Filed: June 26, 2003
    Publication date: July 15, 2004
    Inventors: Ed Austin, Anthony James, Wayne Rankhorn, Johnny Mason, Carlos Rodriguez
  • Publication number: 20040133200
    Abstract: An apparatus is provided to reduce bony fragments and maintain a human's wrist or hand in a healing position. The apparatus may include a first clamp assembly operable to removably mount to an external fixator when the external fixator is coupled to a first bone of a human. A second clamp assembly may be releasably engaged with at least one bone pin embedded in a second bone of a human. A connector rod may be provided to join the first clamp assembly to the second clamp assembly.
    Type: Application
    Filed: November 13, 2003
    Publication date: July 8, 2004
    Inventors: David S. Ruch, Richard M. Bryant
  • Publication number: 20040133199
    Abstract: The invention relates to a novel type of an external fixation device having a carrying structure (1; 40) of interconnected elements (2, 5, 6) comprising an extendible central body (2), and clamps (5, 6) for bone screws respectively articulated on opposed ends (3, 4) of the central body (2), said central body comprising two parts (8, 9) telescoping slidable one on the other, each of said parts (8, 9) including a first portion (8a; 9a) of elongate shape formed integrally with a second end portion (8b; 9b) of substantially cylindrical shape, said first portions (8a, 9a) of the parts (8, 9) being slidably coupled to each other by means of a driving groove (7) formed longitudinally in one the first portion (8a) and a corresponding slide (7a) formed longitudinally in the other first portion (9a) and means being provided in said parts (8, 9) for stopping their sliding movement characterized in that it further comprises at least one plate (27; 41; 42; 43; 60) having predetermined contour shape and thickness, at least
    Type: Application
    Filed: December 22, 2003
    Publication date: July 8, 2004
    Inventors: Michele Coati, Luigi Rossi
  • Patent number: 6755828
    Abstract: The invention relates to medicine, in particular to spinal surgery and is used for curing spinal diseases and injuries in specialized departments of vertebrology and neurosurgery. The inventive device includes not more than nine fixing units. Each unit bears two fixing elements fastened to it which are embodied in the form of a threaded stem, the working ends of which are implanted in roots of vertebra arches angularly at 35-45° to the sagittal plane of the vertebra. The fixing units are connected to each other in groups of three with the aid of threaded ties, thereby forming support units. Two of the units are side units and one is intermediate unit. The intermediate unit is connected to the side support units so that it can move with the aid of the connecting hinge junctions. Dosed displacement is performed by moving distraction nuts.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: June 29, 2004
    Assignee: Russian Ilizarov Scientific Center
    Inventors: Vladimir Ivanovich Shevtsov, Alexander Timofeevich Khoudiaev, Pavel Ivanovich Kovalenko
  • Publication number: 20040116925
    Abstract: The present invention relates to a frame for attaching to a patient. The present invention also relates to a stereoguide and a member for attaching to a patient. The present invention also relates to a method for manufacturing the frame, member and stereoguide of the present invention. The frame, member and stereoguide are constructed from a composite material comprising a matrix material and electromagnetically inert fibres.
    Type: Application
    Filed: February 10, 2004
    Publication date: June 17, 2004
    Inventors: Steven Streatfield Gill, Andrew Paul Godbehere
  • Patent number: 6749611
    Abstract: The invention relates to a bone screw, particularly for use with external splints in fracture stabilization, comprising an elongate cylindrical body (2) of predetermined length and diameter tapering into a threaded end portion (5) which terminates with a tip (6), and an opposite screw-handling end (3). The screw-handling end (3) has substantially the same diameter as that of the elongate cylindrical body (2) and comprises a flat (7) extending parallel to the axis of the cylindrical body over the main part of the cylinder body portion unoccupied by the thread. In a further embodiment, the screw-handling end (3) is formed with a plurality of flats (8) extending parallel to the axis of the cylinder body (2) at predetermined spacings. These flats extend over the main part of the cylindrical body portion unoccupied by the threadway and alternate with lands (9).
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: June 15, 2004
    Assignee: Orthofix S.r.l.
    Inventors: Daniele Venturini, Luigi Rossi
  • Patent number: 6746448
    Abstract: An external fixator includes a main body and an outrigger for extending over a fractured joint, such as a wrist joint. The main body can be positioned next to a right arm, or flipped over and positioned next to a left arm. The outrigger is attachable to extend either to the left or to the right of the main body, as appropriate. A distal body is removeably connectable to the distal end of the main body, and the distal body can be affixed to bone on the opposite side of the fracture to immobilize the joint where the fracture occurs. The distal body is connected to the main body with an adjustable securement section which provides six degrees of adjustment freedom. The outrigger is attached to the main body through a slide plate in a dual rail configuration which provides two dimensions of adjustment. Fragment pin supports ride in a track of the outrigger, and provide seven degrees of adjustment freedom for directed fixation of fragments at the fracture site.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: June 8, 2004
    Assignee: Millennium Medical Technologies, Inc.
    Inventors: Lon S. Weiner, Thomas Coull
  • Publication number: 20040097923
    Abstract: In certain embodiments, a fluidic compression device adapted to accommodate an external fixation device includes at least one fluid-impermeable bladder adapted to contain a fluid and at least one region adapted to receive and accommodate one or more external portions of an external fixation device. The fluidic compression device is adapted to be positioned about a portion of a user's body such that an opening formed within the region receives and accommodates one or more external portions of the external fixation device. The fluidic compression device is further adapted to apply intermittent compression to the portion of the user's body according to intermittent increases and decreases in fluid pressure in the bladder while the device is positioned about the portion of the user's body and is accommodating the external fixation device.
    Type: Application
    Filed: July 15, 2003
    Publication date: May 20, 2004
    Applicant: EEMSO, Inc.
    Inventor: Daniel P. Shevlin
  • Patent number: 6730086
    Abstract: The present invention discloses bone grasping tongs for seizing bones or bone fragments. The tongs comprise two mutually pivotable tongs levers fitted with clamping tips at the ends of the tongs levers for seizing the bone. The tongs further comprise a locking element to detachably lock the relative position of the tongs levers and a connecting member to connect with an additional component within an external fixation device. The locking element is located at a distance from the axis of rotation and the longitudinal axis of the connecting member is situated in the plane of pivoting of the tongs lever. The present invention also discloses an external fixation device for externally fixating bone fractures. The device comprises at least one bone grasping tongs, one elongated support, and at least one clamp which detachably connects the connecting member of a bone grasping tongs and an elongated support in a mutually rotatable manner.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: May 4, 2004
    Assignee: Synthes (U.S.A.)
    Inventors: Marcus Hehli, Ruedi Ambühl, Alberto Fernandez Dell'Oca
  • Publication number: 20040073211
    Abstract: Embodiments of the present invention include devices and methods for aligning fragments of a fractured bone or for positioning bones. In some embodiments, fixation devices and anatomical features are modeled with the aid of a computer served over a network, and the model is used to determine how an actual fixation device should be configured to align or position the bones.
    Type: Application
    Filed: April 4, 2003
    Publication date: April 15, 2004
    Inventors: Ed Austin, John Schneider, Michael W. Mullaney
  • Patent number: 6716212
    Abstract: A universal modular external fixation system for immobilizing bone fragments in long bone fractures. The universal modular external fixation system includes a frame assembly comprising a plurality of pins designed to be coupled to various portions of a fractured bone. The external sections of the pins are fixated to a variety of different coupling devices designed to attach to a series of connecting bars along the length of the fractured bone. A plurality of connecting members interconnect the connecting bars thereby securing the pins and thus the bone sections to aid in proper healing of the fracture(s).
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: April 6, 2004
    Inventor: Tyrone Sam Pickens
  • Patent number: 6709433
    Abstract: An external bridging/non-bridging bone fixation device including at least a first member and a second member. The first member is implanted substantially permanently on an arm bone during an entire healing process. Whereas the second member is adapted to be substantially temporarily implanted and affixed between the first member and a metacarpal of the associated hand. The second member may be a singular rigid piece or may be formed of several modular pieces affixed together. In particular, the second member may be hinged to allow for an offset or angled implantation. Also, the second member may include a plurality of pieces that are rigidly held together after implantation to allow for high selectivity by a physician. The bridging/non-bridging bone fixation device allows for a bridging adaptation during an initial portion of healing and a non-bridging adaptation during the extended healing process to reduce the possibility of stiffness and plaques due to prolonged periods of immobility.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: March 23, 2004
    Assignee: Biomet, Inc.
    Inventor: Ryan J. Schoenefeld
  • Publication number: 20040044344
    Abstract: By providing components securable to anchor pins or screws of different diameters as well as providing clamps which hold associated pins in any position during adjustments, an external fixation or adjustable frame structure is provided which is capable of being quickly and easily assembled in any desired configuration. In the present invention, the frame structure is retained in any assembled configuration in order to allow final adjustments to be made, prior to the final securement of the frame assembly in the precisely desired configuration by closure of each clamp member. In this way, an entire frame assembly is capable of being constructed, adjusted, and readjusted in order to assure each component is oriented in the precisely desired position prior to final closure of the clamping members.
    Type: Application
    Filed: May 8, 2003
    Publication date: March 4, 2004
    Inventors: Robert A. Winquist, Roy Bogert, Charles Hummel, James Seaton, James Nelson
  • Patent number: 6695841
    Abstract: A method and associated apparatus for percutaneous internal fixing of a fractured limb bone comprising, placing the limb in a stabilizing clamp that is transparent to x-ray radiation, demonstrating the fractured bone to be fixed, resolving the course through the fractured bone of an intended fixation device, inserting a guide wire along the resolved course and across the fracture faces of the bone through an alignment conduit in the stabilizing clamp, drilling a pilot hole in the bone through the fracture faces by directing a cannular drill over the guide wire, and introducing a cannular fastening screw within the drilled pilot hole and across the bone fracture site to achieve apposition of the fracture fragments of the bone.
    Type: Grant
    Filed: August 5, 2001
    Date of Patent: February 24, 2004
    Inventors: Frederic C. Feiler, Mitchell B. Rotman
  • Patent number: 6678562
    Abstract: A combined tissue/bone growth stimulator and external fixation device is provided to aid in the treatment of fractures, osteotomies, soft tissue injuries, and reconstructive surgery and to reduce the likelihood of complications. The tissue/bone growth stimulator apparatus includes an external fixation device for stabilization of a selected portion of a patient. The tissue/bone growth stimulator apparatus also includes an electrical circuit attached to and forming an integral component of the external fixation device and operable to generate an electrical drive signal. The tissue/bone growth stimulator apparatus also includes a cable adapted to connect the electrical drive signal to a stimulator portion operable to provide an electromagnetic field to stimulate the growth of bone and tissue at the selected portion of the patient and/or at other portions of the patient. More particularly, the electromagnetic field may be produced by directing a current through the external fixation device into the patient.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: January 13, 2004
    Assignee: AMEI Technologies Inc.
    Inventors: John C. Tepper, Richard M. Bryant
  • Patent number: 6663631
    Abstract: An orthopedic method and device for correcting instability of an injured hinge joint. The device includes fixed and rotating rigid members connected by a pair of elongated, generally cylindrical shafts. When the device is mounted in place, a single end-threaded pin disposed through the fixed rigid member defines an axis of rotation, allowing the rotating rigid member, which is connected to the rotating member, to go through a range of motion so that the respective joint is not restricted. This motion mimics that of a natural joint and is made possible because the single end-threaded pin is not fixed in place by any structure other than the center-of-rotation bone and the fixed rigid member in which it is a supportably nested. The invention can include an operational surgical method for using the device to correct instability in the injured hinge joint.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: December 16, 2003
    Inventor: Charles A. Kuntz
  • Patent number: 6663630
    Abstract: A cervical fixation system comprises a body rigidly attached to a patient's skull at one or more rigid attachment points. One method of achieving such a rigid attachment is through the use of bone screws. The bone screws may comprise a shoulder. The bone screws may further attach to the body of the cervical fixation system. Examples of possible attachment methods include the use of a quick disconnect head, and the use of a threaded body on the bone screw.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: December 16, 2003
    Assignee: Spine Works LLC
    Inventors: Daniel K. Farley, Anthony J. Mulac, Richard L. Saunders
  • Publication number: 20030225407
    Abstract: The fixator is an apparatus for repairing fractures of the distal radius and wrist. Distal, pivot, distraction, and radial members provide an anatomically contoured, radiolucent apparatus that permits the wrist to move through a substantially normal range of motion. A means for distraction of the bones by the fixator is also provided. The fixator may be affixed to the lower arm and hand by spaced-apart elongate distal mounting pins with lower ends adapted or mounting in the metacarpal bone and by spaced-apart elongate radial mounting pins with lower ends adapted for mounting in the radius.
    Type: Application
    Filed: February 28, 2003
    Publication date: December 4, 2003
    Inventor: Hector Mark Estrada
  • Publication number: 20030225405
    Abstract: An external fixator includes a main body and an outrigger for extending over a fractured joint, such as a wrist joint. The main body can be positioned next to a right arm, or flipped over and positioned next to a left arm. The outrigger is attachable to extend either to the left or to the right of the main body, as appropriate. A distal body is removeably connectable to the distal end of the main body, and the distal body can be affixed to bone on the opposite side of the fracture to immobilize the joint where the fracture occurs. The distal body is connected to the main body with an adjustable securement section which provides six degrees of adjustment freedom. The outrigger is attached to the main body through a slide plate in a dual rail configuration which provides two dimensions of adjustment. Fragment pin supports ride in a track of the outrigger, and provide seven degrees of adjustment freedom for directed fixation of fragments at the fracture site.
    Type: Application
    Filed: May 30, 2002
    Publication date: December 4, 2003
    Applicant: Millennium Medical Technologies, Inc.
    Inventor: Lon S. Weiner
  • Publication number: 20030225406
    Abstract: An external fixator includes a main body and an outrigger for extending over a fractured joint, such as a wrist joint. The main body can be positioned next to a right arm, or flipped over and positioned next to a left arm. The outrigger is attachable to extend either to the left or to the right of the main body, as appropriate. A distal body is removeably connectable to the distal end of the main body, and the distal body can be affixed to bone on the opposite side of the fracture to immobilize the joint where the fracture occurs. The distal body is connected to the main body with an adjustable securement section which provides six degrees of adjustment freedom. The outrigger is attached to the main body through a slide plate in a dual rail configuration which provides two dimensions of adjustment. Fragment pin supports ride in a track of the outrigger, and provide seven degrees of adjustment freedom for directed fixation of fragments at the fracture site.
    Type: Application
    Filed: September 3, 2002
    Publication date: December 4, 2003
    Applicant: Millennium Medical Technologies, Inc.
    Inventors: Lon S. Weiner, Thomas Coull
  • Patent number: 6652523
    Abstract: The invention applies to the field of medicine, particularly to bone surgery. The invention relates to a monolateral orthopedic external fixation device for immobilizing a fractured bone having a rigid support, at least two pins screwed into the bone and joined to the rigid support by a connecting mechanism comprising a pin-holding device composed of two identical parts forming a clamp whose two opposing faces have depressions. These depressions are able to receive and hold pins with diameters from 3 to 6 mm.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: November 25, 2003
    Assignees: Delegation General pour l'Armement
    Inventors: Patrick Evrard, Michel Di Shino, Christian Steenman, Georges Dalzotto, Sylvain Rigal
  • Publication number: 20030199871
    Abstract: This invention relates to methods and instruments for performing a surgical procedure in a disc space between adjacent vertebrae. A cannula is inserted to create a working channel through the skin and tissue of a patient using a transforaminal approach to the disc space. A viewing element is used to visualize working end of the cannula and the disc space. A facetectomy is performed through the working channel to access the disc space. The disc space is prepared with various instruments, such as distractors, shims, chisels and distractor-cutters that extend through the working channel. At least implant is inserted into the disc space. The procedure allows bi-lateral support of the adjacent vertebrae with the at least one implant inserted via a unitary, minimally invasive approach to disc space.
    Type: Application
    Filed: June 5, 2003
    Publication date: October 23, 2003
    Inventors: Kevin T. Foley, John L. White, Bradley T. Estes, Mingyan Liu, Loic Josse, Jeffrey D. Moore
  • Publication number: 20030191466
    Abstract: Embodiments of the present invention include devices and methods for aligning fragments of a fractured bone or for positioning bones. In some embodiments, fixation devices and anatomical features are modeled with the aid of a computer, and the model is used to determine how an actual fixation device should be configured to align or position the bones.
    Type: Application
    Filed: April 4, 2003
    Publication date: October 9, 2003
    Inventors: Ed Austin, John Schneider
  • Patent number: 6613039
    Abstract: A method and apparatus for the safe surgical placement of sharp instruments, such as trocars, is provided. The apparatus includes a safety guide that allows placement of a surgical trocar through a patient's skin and into a receiver. After placement of a sharp end of the trocar into the receiver, the trocar is then advanced through the patient's skin and removed from the body, thereby pulling a surgical drain, which is attached to the trocar, through the skin. The trocar and safety guide may then be disposed, the sharp end of the trocar remaining safely covered by the receiver.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: September 2, 2003
    Inventor: Robert S. Namba
  • Patent number: 6613049
    Abstract: By providing components securable to anchor pins or screws of different diameters as well as providing clamps which hold associated pins in any position during adjustments, an external fixation or adjustable frame structure is provided which is capable of being quickly and easily assembled in any desired configuration. In the present invention, the frame structure is retained in any assembled configuration in order to allow final adjustments to be made, prior to the final securement of the frame assembly in the precisely desired configuration by closure of each clamp member. In this way, an entire frame assembly is capable of being constructed, adjusted, and readjusted in order to assure each component is oriented in the precisely desired position prior to final closure of the clamping members.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: September 2, 2003
    Inventors: Robert A. Winquist, Roy Bogert, Charles Hummel, James Seaton, James Nelson
  • Patent number: 6610061
    Abstract: The invention relates to a fixation device with clamping jaws and with rods connecting the clamping jaws, said rods being adjustable axially and angularly for positioning relative to the clamping jaws and clampable in the desired position, and with fixation and retaining pins that are receivable in a clampable fashion in the clamping jaws. According to the invention, a fixation pin applicator can be connected in a releasable fashion to the clamping jaws. A fixation pin can be brought into a desired position by means of the fixation pin applicator.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: August 26, 2003
    Inventor: Roland Ballier
  • Patent number: 6605088
    Abstract: A pair of bone clamps used for open reduction and internal fixation of a fractured bone or osteotomy is interconnected by a lockable, articulating connection apparatus. Each bone clamp includes a primary clamping means for manipulating a bone fragment back into a proper position. Additionally, each bone clamp includes a secondary bone clamping means that provides adequate clamping force for maintaining the reduction so that the primary clamping means can be released. The secondary bone clamping means provides clearance for the positioning and application of a fracture fixation prosthesis to stabilize the reduction during healing. The bone clamps and lockable, articulating connection apparatus together comprise a bone setting apparatus that provides for unconstrained manual reduction and alignment of the bone fracture, locking of the reduction in a fixed position and orientation, and application of a fracture fixation prosthesis, thereby securing the reduction.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: August 12, 2003
    Inventors: Richard A. St. Onge, Gordon Baker, T. Wade Fallin
  • Patent number: 6592584
    Abstract: A finger suffering from contracture of the proximal interphalangeal (PIP) joint is treated by application of a device that includes two pivotally joined sections, one of which is securable to the middle phalanx of the finger and the other to another portion of the patient's finger, hand or wrist, with an element that applies torque to the sections. The pivot axis of the two sections is dorsal to the finger, and the torque-producing element and the pivot axis define a moment arm whose length varies in inverse relation to the tension applied to the tensioning element. Torque is applied to the PIP joint without a functionally significant torque being applied to the metacarpal phalangeal (MP) joint, and the device requires attachment only to the dorsal aspect of the phalanx that is distal to the joint being treated rather than to both the distal phalanx and the proximal phalanx.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: July 15, 2003
    Inventors: John M. Agee, Jeffrey Woodhouse
  • Patent number: 6589241
    Abstract: A bone clamp having a ratchet mechanism including ratchet teeth having rounded peaks with curved valleys therebetween and a curved pawl having a curvature similar to the valleys spanning the peaks of the ratchet teeth. The ratchet mechanism of the current invention distributes the interaction forces between the ratchet teeth and the pawl and therefore is resistive to shear stresses which could otherwise compromise the structural integrity of the ratchet mechanism.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: July 8, 2003
    Assignee: Zimmer, Inc.
    Inventors: Frank Townsend, Patrick Rousseau, Mark A. Bryant
  • Patent number: 6581481
    Abstract: The present invention provides for measurements of the principal strain magnitudes and directions, and maximum shear strain that occurs in a porous specimen, such as plastic, ceramic or porous metal, when it is loaded (or subjected to a load). In one embodiment the invention includes a capacitive delta extensometer arranged with six sensors in a three piece configuration, with each sensor of each pair spaced apart from each other by a predetermined angle, such as 120 degrees.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: June 24, 2003
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Gail P. Perusek
  • Publication number: 20030114852
    Abstract: A connecting element for connecting two rods (6, 9) or screws used for bone or vertebra stabilisation is provided. The connecting element comprises a connecting portion (10), a first portion which can be connected to one of the rods and a second portion which can be connected to the other rod. In order that not only rods parallel to each other, but also those inclined at an angle to each other or oblique can be fixed to each other, the first portion (12) is connected to the connecting portion (10) by a device (20) allowing polyaxial orientation.
    Type: Application
    Filed: September 12, 2002
    Publication date: June 19, 2003
    Inventors: Lutz Biedermann, Jurgen Harms, Peter Ostermann
  • Patent number: 6575972
    Abstract: A clamp with helical coils or springs defining a cavity to receive and secure rod members. The clamp also comprises a connection and tightening device for constricting the first and second helical coils around the respective rod members. These clamps have multiple uses including use as a device for securing a bone. In such a case, this embodiment may comprise a first and second stabilization bar, a pin, a pin attachment device, and a clamp. In another embodiment of the present invention, a clamp comprises connectors with cavities to house the helical springs. The connection and tightening device secures and tightens the first and second connectors by causing the helical springs to constrict about the rod member.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: June 10, 2003
    Assignee: Vanderbilt University
    Inventor: Jeffrey D. Gordon
  • Patent number: 6572616
    Abstract: The invention relates to a fixing device for orthopedic applications, in which at least one coupling member is mounted in the connecting rod of, or the guiding rod for, the clamping members, intended for receiving orthopedic pins, which coupling member can be brought into a rigid or a flexible coupling position. Further, preferably it has been provided for, that in the flexible coupling position, the flexibility can be adjusted across a certain range.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: June 3, 2003
    Assignee: Fixus B.V.
    Inventor: Gerrit J. Termaten
  • Publication number: 20030093075
    Abstract: A hemostatic device comprises an adhesive bandage and a hemostatic pad. The adhesive bandage includes an adhesive backing, an absorbent pad attached to a bottom surface of the adhesive backing, and a flexible disc attached to a top surface of the adhesive backing. The adhesive backing includes a central portion and two adhesive ends extending from the central portion. The hemostatic pad is attached to a bottom surface of the absorbent pad. A hemostatic effective amount of hemostatic agent is attached to a bottom surface of the hemostatic pad. The hemostatic pad defines an aperture at an approximately central point and an elongated cut extending from the aperture. The bandage defines an associate aperture and an elongated cut above the aperture and the elongated cut of the hemostatic pad. The apertures and the cuts allow the passage of an indwelling tubular element at the puncture wound.
    Type: Application
    Filed: November 1, 2002
    Publication date: May 15, 2003
    Inventor: Melvin Levinson
  • Publication number: 20030065328
    Abstract: The invention relates to medicine, in particular to spinal surgery and is used for curing spinal diseases and injuries in specialized departments of vertebrology and neurosurgery. The inventive device includes not more than nine fixing units. Each unit bears two fixing elements fastened to it which are embodied in the form of a threaded stem, the working ends of which are implanted in roots of vertebra arches angularly at 35-45° to the sagittal plane of the vertebra. The fixing units are connected to each other in groups of three with the aid of threaded ties, thereby forming support units. Two of the units are side units and one is intermediate unit. The intermediate unit is connected to the side support units so that it can move with the aid of the connecting hinge junctions. Dosed displacement is performed by moving distraction nuts.
    Type: Application
    Filed: September 12, 2002
    Publication date: April 3, 2003
    Inventors: Vladimir Ivanovich Shevtsov, Alexander Timofeevich Khoudiaev, Pavel Ivanovich Kovalenko