External Fixation Means Patents (Class 606/54)
  • Patent number: 7666212
    Abstract: An external fixator implant screw with an intercalated head, of which one embodiment for lag screw mode has a spherical head, and a partial thread. The spherical head in countersunk bone exerts concentric wide contact on insertion at various angles to surface. Optional canalization of central rod allows guide wire technique and optional mobility of head allows variable shaft length between head and thread. Another embodiment for use in basic implant mode, in a single bone fragment, at right angles to bone surface, has a conical head with limited basal contact on bone, the head being integrated to a solid rod and is fully threaded from head to leading tip. In both embodiments, the load transmission is renewable from outside in case of loosening, without reopening any wound. The implant is made of biocompatible material.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: February 23, 2010
    Inventor: Kartikeya P. Pathak
  • Publication number: 20100042102
    Abstract: A Craniofacial Fracture Reduction Assembly is disclosed, the assembly providing a surgeon with precise control over the surgical reduction of fractured craniofacial bone pieces. The fracture reduction assembly may include a reduction platform, and a threaded fragment manipulator. The reduction platform has top and bottom surfaces and at least one receiving hole in communication therewith. The receiving hole is configured to accept a fragment manipulator. The fragment manipulator may comprise an elongated member having a bone engaging portion for engaging a targeted fractured bone piece and a center threaded portion. Working in combination with a reduction nut, the fragment manipulator provides accurate control over the fragment reduction vector. In use, the bone engaging end of the fragment manipulator is inserted through the receiving hole in the reduction platform and then into the fracture region where it engages the targeted fractured bone piece.
    Type: Application
    Filed: October 20, 2009
    Publication date: February 18, 2010
    Applicant: SYNTHES USA, LLC
    Inventor: Ross Jonathan Hamel
  • Patent number: 7645279
    Abstract: A pin allows for convenient and noninvasive adjustment and tightening relative to the bone to correct and/or avoid loosening of the pin and attached external fixator. In one embodiment, the pin includes a shank extending from a head toward a distal tip end of the pin. Adjacent to the distal tip of the pin is a threaded region with a varying pitch and the shank of the pin is tapered or conical having an increasing minor and/or major diameter along the pin from the tip end. In an alternative embodiment, an anchor is provided on the distal tip for engagement with the far cortex of the bone. The anchor includes a tapered region proximate the tip that decreases in diameter. A split ferrule, expansion bushing or collar is seated on the tapered region. The shank of the pin also includes a threaded region on which a washer and nut are engaged for rotational movement longitudinally on the shank.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: January 12, 2010
    Inventor: Bruce F. Haupt
  • Publication number: 20090312757
    Abstract: An assembly includes a body, a plunger, a biasing member and a set screw. The body has a top surface, a bottom surface, and a polygonal drive surface interposed between the top surface and the bottom surface. The body has a first passageway extending from the top to the bottom surface, a second passageway extending from the polygonal drive surface to the first passageway, and a third passageway extending from the polygonal drive surface to the first or second passageway. The plunger has a channel that defines an interior surface having a threaded portion. The plunger moves within the second passageway. The biasing member biases the plunger toward a first plunger position. The set screw is movable within the third passageway between a first position in which the set screw inhibits movement and a second position in which the set screw allows movement of the plunger within the second passageway.
    Type: Application
    Filed: June 17, 2008
    Publication date: December 17, 2009
    Applicant: DePuy Products, Inc.
    Inventors: Clinton E. Kehres, William Muhammad
  • Publication number: 20090306661
    Abstract: An insert (70) for a clamping element with two jaws to clamp a rod-shaped element comprises an inner cavity (144) to accommodate a rod-shaped element and at least one flange element (153) at one longitudinal end of the insert intended to abut against the clamping element. The flange element (153) comprises clamping members (161) to reduce the available room within the inner cavity (144) for the rod-shaped element to be clamped and to clamp the flange element (153) between the rod-shaped element and an outer clamping surface of the clamping element to prohibit any longitudinal movement of the clamped insert.
    Type: Application
    Filed: May 29, 2007
    Publication date: December 10, 2009
    Applicant: Stryker Trauma SA
    Inventors: Roland Thomke, Damian Frankhauser
  • Publication number: 20090292285
    Abstract: In accordance with embodiments of the present invention, a system for reducing pressure on high-pressure load areas on a body includes a plurality of bone anchors and a support structure. Each of the bone anchors includes an implantation end and a coupling element. The bone anchor implantation end secures the bone anchor to a load-bearing bone, while the bone anchor coupling element engages the support structure to transfer a body weight from the load-bearing bones to the support structure. The support structure may include one or more support coupling elements to engage the bone anchor coupling elements. In accordance with other embodiments of the present invention, a method for reducing pressure on high-pressure load areas on a body includes implanting the plurality of bone anchors into at least one load-bearing bone in the body, and removably attaching the coupling elements of the bone anchors to the support structure to transfer a body weight from the load-bearing bone to the support structure.
    Type: Application
    Filed: December 30, 2008
    Publication date: November 26, 2009
    Inventor: Laura Salzhauer
  • Patent number: 7618417
    Abstract: A clamping element for the clamping of multiple rod-shaped elements has two opposing jaws, which have a number of corresponding grooves for the acceptance of a corresponding number of rod-shaped elements such as bone pins. Spring elements are provided, with which in the resting position the closed jaws are tensed, to hold the rod-shaped elements in position.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: November 17, 2009
    Assignee: Stryker Trauma S.A.
    Inventors: Roland Thomke, Vinzenz Burgherr, Christian Lutz, Damian Fankhauser, Clemens Dransfeld, René Fischer
  • Publication number: 20090275944
    Abstract: In one preferred embodiment according to the present invention, an external fixation device for the foot and ankle of the human anatomical skeleton includes a yoke, three adjusters, and a base (or foot plate). The foot plate selectively couples to the yoke without the need of any tools, thereby enabling the patient to self attach and remove the foot plate from an existing circular fixation structure.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 5, 2009
    Applicant: Quantum Medical Concepts LLC
    Inventors: Randall J. Huebner, Alexander Randall Shaevitz, William McGrath, Douglas N. Beaman
  • Patent number: 7608074
    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: Grant
    Filed: June 26, 2003
    Date of Patent: October 27, 2009
    Assignee: Smith & Nephew, Inc.
    Inventors: Gene Edward Austin, Anthony James, Wayne Rankhorn, Johnny Mason, Carlos Rodriguez
  • Publication number: 20090264883
    Abstract: An orthopedic fixation plate comprises a plurality of cylindrical holes for attaching connectors of a external fixation system, wherein the fixation plate comprises two supporting elements around each orifice of a cylindrical hole wherein the supporting elements are connected with a sleeve and said supporting elements are also connected with a longitudinally oriented ring element arranged in a radial distance of said sleeve.
    Type: Application
    Filed: June 23, 2008
    Publication date: October 22, 2009
    Applicant: Stryker Trauma SA
    Inventors: Christian Steiner, Philippe Lehmann, Beat Knuchel, Vinzenz Burgherr
  • Publication number: 20090264882
    Abstract: An orthopedic fixation ring for an external fixator has a ring or a ring-segment extending around a center axis. The ring comprises a first surface running perpendicular to the center axis, a second surface which is parallel to the first surface, and a plurality of spaced apart through openings running parallel to the center axis and extending through the fixation plate. The fixation plate has at least a third surface which is parallel to the first surface spaced outwardly thereof with respect to the center axis. A further set of through openings extends from the first surface to the third surface. A fourth surface may be provided which is axially displaced from the second surface with respect to the center axis. The ring preferably is circular or part-circular and is molded from carbon fiber reinforced PEEK.
    Type: Application
    Filed: June 11, 2008
    Publication date: October 22, 2009
    Applicant: Stryker Trauma SA
    Inventors: Christian Steiner, Vinzenz Burgherr, Meinrad Fiechter
  • Publication number: 20090264884
    Abstract: An apparatus for external fixation of the pelvic ring, having left grip means and right grip means to be engaged in insertion/engagement holes formed respectively in the left and right iliac bone of the pelvic ring, left locking means and right locking means for mutually locking respectively the left grip means and the right grip means, left articulation means and right articulation means in order to allow to connect articulately the left and right locking means, and transabdominal means for joining the left and right articulation means. The apparatus has left and right means for guiding drilling means used by the orthopedic surgeon to provide the insertion/engagement holes so as to allow correct execution of the insertion/engagement holes.
    Type: Application
    Filed: July 25, 2006
    Publication date: October 22, 2009
    Inventors: Alessandro Masse, Domenico Aloj, Antonio Biasibetti
  • Publication number: 20090254086
    Abstract: Articulated joint for mutually locking rods and/or pins in an external fixation device for reducing bone fractures, including a first rod support having a first pair of jaws and a second support for the rods or pins having a part that has a flat face resting against a corresponding flat face of the first pair of jaws. The flat face of the second support has at least one groove along one edge which together with the flat face of the first pair of jaws defines a channel into which, the rod or pin is inserted sideways, against the action of a biasing member, and retained under pressure in said channel.
    Type: Application
    Filed: October 4, 2006
    Publication date: October 8, 2009
    Applicant: IMPLANTVET S.L.
    Inventor: Victor Trilla-Muntanola
  • Publication number: 20090222006
    Abstract: An external fixator (10) for assisting healing of a fracture in a bone (18) comprises a securing portion (16) that defines a void; and an elongate bracket portion (12) extends from the securing portion. The bracket portion is arranged to engage one or more first percutaneous bone fasteners (20) locatable in the bone on a first side of the fracture. In use, one or more second percutaneous bone fasteners (26) are located in the bone on a second side of the fracture such that the second fasteners extend into the void of the securing portion. The void can be filled with a cement compound to secure the second bone fasteners in place with respect to the securing portion.
    Type: Application
    Filed: November 11, 2006
    Publication date: September 3, 2009
    Inventor: David M. Allison
  • Publication number: 20090216231
    Abstract: A pelvic clamp has a rail-like straight guide for two arms which are displaceable relative to one another along this straight guide and project from the straight guide and on each of the free ends of which an approximately tubular carrier for a tip intended for bone contact is provided. A locking device releasable using at least one handle is provided between the two parts displaceable relative to one another, namely between at least one of the arms and the straight guide. Preferably at least one of the arms preferably both arms, is or are capable of being folded or dismantled and thus shortened via at least one joint which can be fixed in a desired position and/or a plug connection.
    Type: Application
    Filed: May 23, 2006
    Publication date: August 27, 2009
    Inventor: Andreas Lanz
  • Publication number: 20090198184
    Abstract: A percutaneous biomedical device comprising a body having a lumen extending longitudinally at least partially through the body, an implantable interface region disposed on the body, the implantable interface region having a plurality of radially extending conduits through the body, each of the conduits are in fluid communication with the lumen and in fluid communication with an exit port. The exit ports extrude a skin-interface composition between the subject's skin and the percutaneous biomedical device. Methods for implanting a percutaneous biomedical device includes implanting a percutaneous biomedical device percutaneously in a subject and aligning the exit ports of the implantable interface region between the epidermis and the hypodermis skin layers of the subject.
    Type: Application
    Filed: February 5, 2009
    Publication date: August 6, 2009
    Inventors: David C. Martin, Antonio Peramo, Steven A. Goldstein
  • Publication number: 20090177197
    Abstract: An external fixator assembly structured for placement and use substantially adjacent the ankle area of the body and including a support assembly comprising at least one base segment and one or two contoured segments disposed substantially on opposite sides of the ankle area. Each of the contoured segments includes a contoured portion having a either different or substantially equivalent angular and/or convergent configurations disposed along a length or height of the ankle area. At least one transfixion member may be connected along the length of the contoured portion(s) as well as a remainder of the contoured segment(s) so as to extend transversely inward there from into operative engagement with tissue associated with the ankle area patient's body.
    Type: Application
    Filed: September 25, 2008
    Publication date: July 9, 2009
    Inventor: Luis E. Marin
  • Publication number: 20090171356
    Abstract: The present invention provides an apparatus and system for bone repositioning. The bone-repositioning apparatus includes an actuator controller configured to transmit a series of coordinated signals; an outer sleeve dimensioned to encircle a body limb, including fragments of a fractured bone within the body limb; and a plurality of individually operable actuators, each actuator connected to the actuator controller and configured to receive one or more of the coordinated signals, each actuator comprising a member configured to protract and retract into and out of an interior portion of the outer sleeve to exert a predetermined force on the body limb and on at least one of the bone fragments. A bone-repositioning system including the bone-repositioning apparatus is also described, including a computer program product that partially or fully automates the repositioning process depending on the application.
    Type: Application
    Filed: January 2, 2008
    Publication date: July 2, 2009
    Applicant: International Business Machines Corporation
    Inventor: Peter M. Klett
  • Publication number: 20090148232
    Abstract: An insert for an external fixation has two jaws for clamping a rod-shaped element. The insert includes a locking element and is an angled piece having two free ends, with at least one engagement edge for engagement into the rod-shaped element being provided at its one free end. The insert has a recess or bore for engagement with a locking shaft of the clamp provided at the free end thereof that lies opposite to the free end having the rod engagement edge. The insert is angled so that it may extend through a passageway in one of the jaws and into a cavity formed in the jaw for receiving the rod. The insert rod engaging edges are tapered to bite into the rod to prevent its movement.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 11, 2009
    Applicant: Stryker Trauma SA
    Inventors: Roland Thomke, Vinzenz Burgherr, Damian Fankhauser
  • Publication number: 20090131935
    Abstract: A method of preparing a patient's one leg, that is in need of treatment, for ambulation. The method includes the steps of: applying an external fixation assembly, having at least one external frame component, by pinning the at least one external frame component to at least one of the patient's bones in the patient's one leg so as to prepare the patient's one leg for healing; providing a foot assembly with a sole assembly defining a bearing surface and a connecting assembly; and operatively joining the foot assembly to the patient's one leg, whereby the patient can walk in a manner whereupon weight of the patient's body is applied by a patient's one foot, that is part of the user's one leg, to the sole assembly and therethrough to and against an underlying surface during ambulation.
    Type: Application
    Filed: November 15, 2007
    Publication date: May 21, 2009
    Inventor: David A. Yeager
  • Patent number: 7527626
    Abstract: An external fixation system has clamps, rods and pins having anti-magnetic core parts and a non-conductive sheath part covering essentially the exterior surfaces of the core part. The rods, pins and clamps are especially MRI safe for a patient when used in any frame configuration for fractures of the upper and lower extremities and pelvis wherein the usual MRI field parameters of a static field of 2 Tesla, a time-varying filed of max. 20 Tesla/sec and a specific absorption rate (SAR) of max. 0.4 Watts/kg averaged over the whole body of the patient apply.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: May 5, 2009
    Assignee: Stryker Trauma SA
    Inventors: Christian Lutz, Vinzenz Burgherr, Olivier Palefroy
  • Publication number: 20090105621
    Abstract: A removable protective covering is provided that can be secured about an external fixation device on the upper or lower extremity of a patient. The covering includes a fabric form that is sized and configured to accommodate varying sizes of external fixation devices and uses readily engageable/releasable closure elements or fasteners to securely engage the covering about the fixator and the extremity. A drawstring closure may be provided at the open ends of the covering to tighten the end about the patient's limb. Ventilation features may be provided including vents with and without additional devices to generate air flow through the covering. The covering for a lower extremity fixation device may be configured for removably attachment to a foot plate and the foot plate itself may be configured to support or attach to the fixation device.
    Type: Application
    Filed: October 17, 2008
    Publication date: April 23, 2009
    Inventors: Lawrence M. Boyd, Douglas Kirven, Samuel B. Adams, JR.
  • Publication number: 20090099565
    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: December 15, 2008
    Publication date: April 16, 2009
    Applicant: MILLENNIUM MEDICAL TECHNOLOGIES, INC.
    Inventors: Lon S. Weiner, Thomas Coull
  • Publication number: 20090093812
    Abstract: A cranial flap fixation system and method are provided. In one embodiment, the system includes a rod having first and second ends, and an intermediate portion. The rod has a threaded portion between the first end and the intermediate portion. The system also includes an inferior disk coupled with the rod, proximate the first end of the rod, and a superior disk with an orifice through a central region of the superior disk. The orifice is sized to allow the superior disk to engage the threaded portion and movably couple the superior disk to the rod. The system further includes an installation tool having a central cavity. The installation tool is configured to engage the superior disk and the threaded portion, such that rotation of the installation tool in a first direction directs the superior disk toward the inferior disk.
    Type: Application
    Filed: December 15, 2008
    Publication date: April 9, 2009
    Applicant: OsteoMed L.P.
    Inventors: Shaher A. Ahmad, Lisa Regina Thornhill, Jon M. Staples
  • Publication number: 20090088751
    Abstract: Clamping devices and methods for external fixation systems include a post component having a yaw axis and a clamping system secured to the post component and rotatable about the yaw axis. The clamping system includes a outer jaw and a inner jaw having an inner surface facing the outer jaw. The outer and inner jaws together form an opening for receiving a fixation element of the external fixation system. The inner jaw and outer jaw have a roll axis alignable with a longitudinal axis of the fixation element. The clamping system and post component are rotatable about the roll axis. The inner jaw also includes a cylindrical outer-facing surface. The devices also include a base component having a cylindrical concave surface having a pitch axis. The concave surface of the base component interfaces with the cylindrical outer facing component on the inner jaw. The outer and inner jaws being rotatable relative to the base and the post component about the pitch axis.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 2, 2009
    Applicant: QFX Technologies, Incorporated
    Inventor: Michael W. Mullaney
  • Publication number: 20090069811
    Abstract: A device is provided for fixation of equipment to the head of a patient during neurological diagnosis, therapy or surgery, comprising a ring-shaped frame having at least three fixation pins which are attachable against the skull of the patient with a contact force for fixation of the device thereto. At least one connecting means is positioned at a location where the frame has a minimum of displacement due to deformation of the frame when the fixation pins are tightened towards the skull, in order to allow fixation of equipment for diagnosis, therapy or surgery to the frame without they being distorted as a consequence of the deformation of the frame. The invention also relates to a method for fixation of the head of a patient by means of such a device.
    Type: Application
    Filed: April 26, 2006
    Publication date: March 12, 2009
    Applicant: ELEKTA AB (PUBL)
    Inventors: Magnus Lindfors, Thomas Arn, Jouni Frant, Jan-Erik Olsson
  • Patent number: 7491008
    Abstract: An insert for an external fixation has two jaws for clamping a rod-shaped element. The insert includes a locking element and is an angled piece having two free ends, with at least one engagement edge for engagement into the rod-shaped element being provided at its one free end. The insert has a recess or bore for engagement with a locking shaft of the clamp provided at the free end thereof that lies opposite to the free end having the rod engagement edge. The insert is angled so that it may extend through a passageway in one of the jaws and into a cavity formed in the jaw for receiving the rod. The insert rod engaging edges are tapered to bite into the rod to prevent its movement.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: February 17, 2009
    Assignee: Stryker Trauma S.A.
    Inventors: Roland Thomke, Vinzenz Burgherr, Damian Fankhauser
  • Publication number: 20090043306
    Abstract: A clavicle clamp mechanism includes a first compression member, a second compression member, and an angular guide having a profile with a first end portion and a second end portion. The first compression member is disposed along the profile of the angular guide and is selectively rotatable about the angular guide. The second compression member is disposed along the profile of the angular guide between the first compression member and the second end portion. The second compression member defines a central axis and is selectively moveable along its central axis.
    Type: Application
    Filed: August 6, 2007
    Publication date: February 12, 2009
    Inventor: Keith Baumgarten
  • Publication number: 20090036888
    Abstract: An ambulatory spinal unloading method and apparatus are implemented to achieve a desired minimum level of residual cushioning in response to a biasing force applied to the associated apparatus tensioning and/or compression mechanism(s). The ambulatory spinal unloading apparatus may further include a treatment system to provide desired levels of nerve and/or muscle stimulation in addition to hot and/or cold elements to provide further therapeutic effects as desired or necessary.
    Type: Application
    Filed: September 23, 2008
    Publication date: February 5, 2009
    Inventors: Matthew J. Dunfee, Susan J. Dunfee
  • Publication number: 20090036891
    Abstract: An orthopaedic fixation clamp for use in an external fixation system and its method of use are presented.
    Type: Application
    Filed: October 3, 2008
    Publication date: February 5, 2009
    Applicant: ZIMMER TECHNOLOGY, INC.
    Inventors: Daniel G. Brown, Keith Denlinger
  • Patent number: 7485132
    Abstract: A transverse connector may be attached to rods of an orthopedic stabilization system by cam locks. Rotation of a cam system may extend a rod engager into a rod opening. The rod engager may be a portion of the cam system. The extension of the rod engager into the rod opening may push a rod against a body of the transverse connector to form a frictional engagement between the transverse connector, the rod, and the rod engager. The cam system allows the formation of an un-threaded, unitary transverse connector that has a low profile. The transverse connector may be easily and securely attached to a rod.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: February 3, 2009
    Assignee: Abbott Spine Inc.
    Inventors: G. Grady McBride, Robert J. Jones
  • Publication number: 20090030359
    Abstract: A device and method for applying intermittent passive traction (IPT) that includes an initial phase followed by a sustained traction phase and finally a relaxation phase. During the first phase of IPT, the spinal elements are placed under gentle traction. This period of time reduces the normal forces across the vertebral bodies, facet joints, paraspinal musculature, etc. The second phase holds the spine in sustained traction, further reducing the forces across the spinal elements, encouraging natural healing to occur and allowing the muscles a period of relaxation. The third phase includes the gradual reduction of traction. During this final phase, the normal forces across the spine are reestablished as the IPT device slowly releases traction. The method resolves many of the most limiting problems associated with traction, CPM, and passive treatment modalities.
    Type: Application
    Filed: September 10, 2008
    Publication date: January 29, 2009
    Inventors: Mark A. Wikenheiser, Matthew J. Dunfee
  • Publication number: 20090024128
    Abstract: An external skeletal fixation device reduces load on the patient, is capable of freely moving and deformity correction of a bone and bone fragments, is simple in construction and can be attached to the patient by an operator who has not a very high skill and long experience. An external skeletal fixation device 1 includes a pair of pin clamp units 2 and 3 fixedly holding rodlike members 61 and 62 inserted, respectively, into a first part 9B2 and a second part 9B3 of a bone 9B on the opposite sides, respectively, of a virtual hinge point 9B1 in the bone 9B. The virtual hinge point corresponds to a center of rotational angulation of the bone, a center on which the first and the second part of the bone respectively on the opposite sides of a fracture site of the bone or a part of the osteotomy site for deformity correction are turned, or a center about which a joint turns.
    Type: Application
    Filed: March 3, 2005
    Publication date: January 22, 2009
    Inventors: Kozo Nakamura, Isao Ohnishi, Masahiko Bessho, Satoru Oohashi, Tsuneo Aoki, Mitsuo Sato, Ryojiro Asano, Kazuo Watanabe, Hiroshi Matsuzawa, Toshiro Uehara, Yoshiharu Saito
  • Patent number: 7479142
    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: October 30, 2003
    Date of Patent: January 20, 2009
    Assignee: Millenium Medical Technologies, Inc.
    Inventors: Lon S. Weiner, Thomas Coull
  • Publication number: 20090018541
    Abstract: A clamp for an external fixation system includes a body having a bottom portion and semi-spherical top portion. The top portion has a threaded bore provided along a longitudinal axis: The clamp includes a clamp assembly having a base with a semi-spherical cavity and a lid positioned over the base to house at least one pin between the base and the lid. The base and the lid have a bore provided along a longitudinal axis thereof. A fastening member is provided that extends through the bore in the base and the lid of the clamp assembly and is secured within the threaded bore of the top portion of the body. The bores in the base and the lid have a diameter that is greater than the diameter of the fastening member.
    Type: Application
    Filed: June 25, 2008
    Publication date: January 15, 2009
    Inventor: Abraham Lavi
  • Patent number: 7465303
    Abstract: An external fixation assembly for bone fusion is disclosed. The assembly includes an extension arm having a fixation joint portion and a pin element moveably disposed along the extension arm defining a first joint portion. The assembly further comprises a plurality of connecting pins for bone fusion. Each of the connecting pins is configured to engage with bone matter for bone fusion and to singly attach to one of the joint portions for support.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: December 16, 2008
    Assignee: Wright Medical Technology, Inc.
    Inventors: Nicholas Riccione, Shane M. Hollawell, Thomas M. Rocchio
  • Publication number: 20080269741
    Abstract: An orthopedic fixator for positioning a first element relative to a second element with precision and with controlled compliance which can be adjusted during the healing process. One embodiment comprises a first frame for attachment to the first element, a second frame attached to the first frame through a plurality of adjustable effective length struts, and a third frame for attachment to the second element, wherein the third frame is compliantly attached to the second frame. A preferred embodiment comprises adjustable length preload elements to apply unidirectional forces between the first and second frames so as preload the adjustable effective length struts and substantially reduce the positional tolerance. An alternative embodiment comprises adjustable spring elements allowing the compliance of the attachment of the third frame to the second frame to be adjusted at various points in the healing process.
    Type: Application
    Filed: April 28, 2008
    Publication date: October 30, 2008
    Inventor: John Peter Karidis
  • Publication number: 20080255554
    Abstract: The invention relates to an external fixator which has a retaining member (1) and connecting elements (2) which can be connected without screws to a bone or bone parts (5), in particular to both halves of an opened sternum, and provide possibilities for increasing or reducing the compressive stress between the two bone parts or sternum halves.
    Type: Application
    Filed: March 30, 2005
    Publication date: October 16, 2008
    Inventors: Jens Richter, Andre Plass, Achim Haeussler, Juerg Gruenenfelder, Gregor Zuend, Marko Turina
  • Publication number: 20080251086
    Abstract: A skull pin assembly for a head fixation device that allows for effective imaging with limited artifact is disclosed. The skull pin assembly comprises two components, a tip and a housing. The conical-shaped tip component engages the skull at a point and is configured to fit within the bore of the substantially cylindrical non-conductive housing component. The conical skull pin tip can be comprised of a material that causes limited artifact in medical imaging procedures. The conical skull pin tip can taper away from the point engaging the skull at a first angle and can seamlessly transition into a conical-shaped surface of the housing component. In one embodiment, a third surface of the housing component can also be tapered to meet the first surface of the tip component at the identical first angle of tapering.
    Type: Application
    Filed: April 10, 2008
    Publication date: October 16, 2008
    Inventor: Charles E. Dinkler
  • Publication number: 20080228184
    Abstract: A system for installing a cross member between first and second anchor members within a patient's body generally includes first and second docking members configured to be removably coupled to the respective first and second anchor members. Each docking member has a first end with an opening, a second end, and a body extending between the first and second ends. The body includes an outer surface with an opening, and a bore extends from the opening on the first end of the body to the opening on the outer surface. The openings on the outer surface of each docking member are configured to be aligned so that the bore in the first docking member is able to direct a wire member into the bore in the second docking member. A method for minimally invasive surgery using the system is also disclosed.
    Type: Application
    Filed: March 15, 2007
    Publication date: September 18, 2008
    Applicant: ZIMMER SPINE, INC.
    Inventor: Hugh D. Hestad
  • Publication number: 20080221572
    Abstract: A device for temporary fixation of parts of a human joint includes two holding elements disposed opposite one another and a releasable fixing device configured to fix in place a respective joint part of the human joint between the two holding elements. In addition, the device includes a support surface configured to support a distal joint part and a proximal joint part, a guide configured to position and to limit a relative movement of at least one of a surgical instrument and a surgical aid, and a receiving means for receiving the guide.
    Type: Application
    Filed: March 10, 2008
    Publication date: September 11, 2008
    Applicant: AEQUOS Endoprothetik GmbH
    Inventors: Hans Naegerl, Dietmar Kubein-Meesenburg, Caspar Graf Stauffenberg
  • Publication number: 20080221573
    Abstract: An adjustment device for an external fixator, which has an elongated fixator body connected to bone-pin clamps at proximal and distal ends of the elongated fixator body is disclosed. The adjustment device includes at least one adaptor for mounting to at least one of the bone-pin clamps. The adaptor stabilizes the bone-pins during an adjustment of the fractured bone to lessen the amount of pain experienced by a patient. An adjustment knob may be coupled to the adaptor and used to tighten or loosen a portion of the bone-pin clamp that facilitates rotation of the bone-pin clamp.
    Type: Application
    Filed: March 5, 2008
    Publication date: September 11, 2008
    Applicant: THINKVILLAGE, LLC
    Inventor: David Kumhyr
  • Publication number: 20080221571
    Abstract: An orthopedic external fixation system may include a distal bar having a curvature that varies along its length, an uncurved proximal bar, a plurality of proximal embedding members, and a plurality of distal embedding members. The proximal and the distal embedding members, sized and shaped for embedding in bone, may attach directly or indirectly to the proximal bar and the distal bar, respectively.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 11, 2008
    Inventors: Aaron Daluiski, Virak Tan
  • Patent number: 7422593
    Abstract: An external fixation system for a bone and associated method. The fixation system includes a proximal frame defining a continuous proximal boundary, a distal frame defining a continuous distal boundary, and at least one frame connector configured for interconnecting the proximal and distal frames at any position along at least one of the proximal and distal boundaries.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: September 9, 2008
    Assignee: EBI, L.P.
    Inventors: Jeffery Cresina, Takkwong R Leung, Stephen Walulik, Stephen Conti
  • Publication number: 20080215074
    Abstract: The present disclosure is directed to an external cardiac basal annuloplasty system (ECBAS or BACE-System: basal annuloplasty of the cardia externally) and methods for treatment of regurgitation of mitral and tricuspid valves. The BACE-System provides the ability to correct leakage of regurgitation of the valves with or without the use of cardiopulmonary bypass, particularly when the condition is related to dilation of the base of the heart. This ECBAS invention can be applied to the base of the heart epicardially, either to prevent further dilation or to actively reduce the size of the base of the heart.
    Type: Application
    Filed: May 16, 2008
    Publication date: September 4, 2008
    Inventors: JaiShankar Raman, P. Srirama Rao
  • Publication number: 20080195095
    Abstract: The present invention relates to resilient external fixators between first and second bone portions O1, O2. The fixator of the invention is essentially characterized by the fact that it comprises a helical spring (11) having an axis (12), a body (14), first means (15) for mounting the body (14) to co-operate with the spring (11) so that the spring is suitable for turning relative to the body about the axis (12), a pin (16) of axis (17) suitable for being fastened on the bone O1, means (19) for mounting the pin (16) to co-operate with the body (14) so as to pass through the spring (11), and so that the axis (17) forms a non-zero angle with the axis (12), another body (22), and means (24) for connecting the body (22) with the bone O2 and the spring (11). The invention is applicable specifically to external fixators for fingers.
    Type: Application
    Filed: May 15, 2006
    Publication date: August 14, 2008
    Inventors: Xavier Renard, Philippe Pelissier
  • Publication number: 20080188852
    Abstract: A medical apparatus for use with an outrigger and at least one fastening pin to reposition first and second portions of a bone of a mammalian body. The apparatus includes a framework and a first fastening assembly for coupling the framework to the outrigger and thus the at least one fastening pin and the first end portion of the bone. The first end portion of an elongate pin is provided with a sharpened tip for penetrating the second portion of the bone. A second fastening assembly couples the second end portion of the elongate pin to the framework. At least one adjustment assembly is carried by at least one of the framework and the first and second fastening assemblies for moving the first end portion of the elongate pin relative to the outrigger so as to reposition the second portion of the bone relative to the first portion of the bone. A method for using the apparatus is provided.
    Type: Application
    Filed: July 3, 2007
    Publication date: August 7, 2008
    Inventor: Amir M. Matityahu
  • Patent number: 7367977
    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: Grant
    Filed: February 28, 2003
    Date of Patent: May 6, 2008
    Inventor: Hector Mark Estrada, Jr.
  • Patent number: 7361176
    Abstract: An external foot/ankle fixation device has a one-piece frame component and a positionable cross bar that allows the attachment of generally anterior/posterior directed fixation wires or rods emanating from the foot/ankle of a patient. The external fixation device provides a stable fixation platform both in-plane and out-of-plane of the object of fixation (e.g. foot or ankle). The fixation device through the cross bar also provides various degrees of angulation of anterior/posterior directed wires in two planes. Posterior angulation components may be provided to the posterior portion of the frame component that provide additional fixation wire/rod angulation variations. Compression rails may also be provided. An optional elevator component may be attached to the bottom of the frame component that does not obstruct access to the soft tissues on the bottom of the foot. The elevator component protects the bottom of the foot from contaminated surfaces.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: April 22, 2008
    Assignee: DePuy Products, Inc.
    Inventors: Paul Cooper, Mamdouh Elsakka, Joel Mohrman, John Pepper
  • Patent number: RE40914
    Abstract: A plate for use in fixating the position of a first bone segment relative to a second bone segment, the plate comprising a body portion having a plurality of attachment mechanisms located therein, wherein the attachment mechanisms include: a first group of three attachment mechanisms substantially positioned within 90°-150° of one another about a circle, and preferably within substantially 120° of one another, whereby the first group of attachment mechanisms is designed to facilitate attachment of a plurality of adjustable length struts to the plate; and a second group of attachment mechanisms substantially positioned about the circle that are designed to facilitate attachment of accessories to the plate, wherein the total number of the attachment mechanisms is a multiple of three.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: September 8, 2009
    Assignee: Smith & Nephew, Inc.
    Inventors: J. Charles Taylor, Harold S Taylor