Femoral Nail Patents (Class 606/67)
  • Patent number: 7306600
    Abstract: An implant for fixation of a bone includes a shaft having a proximal end and a distal end, and a longitudinal axis defined between the proximal end and the distal end. A plurality of blades are disposed on the shaft, and are helically twisted about the longitudinal axis. At least one of the blades has a variable blade width that increases in a direction along the longitudinal axis. A mechanism for coupling the implant to a second fracture fixation implant may be provided separately or in combination.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: December 11, 2007
    Assignee: Synthes (U.S.A.)
    Inventors: Christoph Andreas Roth, Harry T. Hall, IV
  • Patent number: 7296804
    Abstract: A surgical instrument holder has a shank having a coupling end, a handle attached to an opposite end of the shank, a coupling device, and a locking mechanism. The coupling end has an interface thereon for receiving an instrument. The locking mechanism has an annular locking component, a spring, a ring which slides on the shank, and a locking device. The annular locking component is mounted so as to slide along the shank. The locking device cooperates with the locking component so as to lock the instrument onto the interface. The spring biases the locking component in a locking direction and bears on the ring. The ring is disengageably lockable to the shank via a connection device so as to enable quick disassembly for cleaning and component sterilization.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: November 20, 2007
    Assignee: Precimed S.A.
    Inventors: André Lechot, Philippe Fehlbaum
  • Patent number: 7232443
    Abstract: A locking nail for treating fractures of tubular bones has at least one cross-bore is provided at one end for the reception of a bone screw. The nail has a female thread at the end with the cross-bore for connection to a nail retention screw. The nail has an anti-rotation feature to anti-rotationally secure the rotational position of a joining sleeve which joins a targeting apparatus relative to the locking nail.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: June 19, 2007
    Assignee: Stryker Trauma GmbH
    Inventors: Nils Zander, Axel Cremer
  • Patent number: 7192445
    Abstract: Disclosed are medical prosthetic devices or medical implants which exhibit improved biocompatitibly. The devices or implants include a metal material, e.g. titanium, in which the metal surface parts are coated with a corresponding hydride material that contains one or more biomolecule substance. This biomolecule substance may contain one or more biologically active molecules, e.g. bio-adhesives, biopolymers, blood proteins, enzymes, extra cellular matrix proteins, extra cellular matrix biomolecules, growth factors and hormones, peptide hormones, deoxyribonucleic acids, ribonucleic acids, receptors, enzyme inhibitors, drugs, biologically active anions and cations, vitamins, adenosine monophosphate (AMP), adenosine diphosphate (ADP), adenosine triphosphate (ATP), marker biomuolecules, amino acids, fatty acids, nucleotides (RNA and DNA bases), or sugars.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: March 20, 2007
    Assignee: Astra Tech AB
    Inventors: Jan Eirik Ellingsen, Staale Petter Lyngstadaas
  • Patent number: 7008425
    Abstract: An intramedullary nail (20) and related method for fixing a fracture in a long bone. The nail (20) comprises an elongate member (22) having a longitudinal axis (54), a proximal end section (32), a distal end section (34) and a solid central section (24) extending between the proximal and distal end sections (32, 34). The proximal and distal end sections (32, 34) respectively include proximal and distal fastener receiving areas (28, 30) of greater cross sectional dimensions than the central section (24). Each fastener receiving area (28, 30) includes at least one hole (50, 52) extending transverse to the longitudinal axis for receiving a cross fastener (110) adapted to secure to the bone on opposite sides of the elongate member (22). The proximal and distal end sections (32, 34) thereby provide rigid anchoring locations relative to the central section (24) and the central section provides flexibility to promote healing of the fracture.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: March 7, 2006
    Inventor: Jonathan Phillips
  • Patent number: 6932819
    Abstract: An intramedullary nail, comprises a proximal portion, a middle portion and a distal portion. The proximal portion has a longitudinal slot and the distal portion has at least one transversal bore. The proximal portion has a longitudinal axis and a longitudinal bore extending over the longitudinal extension of the slot in the distal direction. The longitudinal bore has an internal thread. An insert which is intended to be inserted in the longitudinal bore. The insert comprises a guiding bore in the form of a slot which is intended to receive fixing elements. The alignment of the guiding bore of said insert is transverse with respect to the longitudinal axis of the proximal portion. The insert has a compression screw adapted to be screwed into said internal thread of the longitudinal bore of the proximal portion to move a fixing element in the direction of the longitudinal axis of the intramedullary nail.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: August 23, 2005
    Assignee: Stryker Trauma SA
    Inventors: Thomas Wahl, Volker Bühren
  • Patent number: 6926719
    Abstract: An intramedullary nail for repair of bone fractures. The intramedullary nail is of a modular configuration including a nail member having a chamber formed on the proximal end thereof. An insert having at least one opening therein for receiving a bone screw or fastener is disposed within the chamber and is secured therein by a locking ring. Accordingly, various inserts may be used to achieve selected bone screw or fastener configurations.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: August 9, 2005
    Inventors: Gary W. Sohngen, Bryan J. Rush
  • Patent number: 6921400
    Abstract: An intramedullary nail for repair of bone fractures. The intramedullary nail is of a modular configuration including a nail member having a chamber formed on the proximal end thereof. An insert having at least one opening therein for receiving a bone screw or fastener is disposed within the chamber and is secured therein by a locking ring. Accordingly, various inserts may be used to achieve selected bone screw or fastener configurations.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: July 26, 2005
    Inventor: Gary W. Sohngen
  • Patent number: 6908465
    Abstract: Disclosed is a bone fracture fixation device, such as for reducing and compressing fractures in the proximal femur. The fixation device includes an elongate body with a helical cancellous bone anchor on a distal end. An axially moveable proximal anchor is carried by the proximal end of the fixation device. The device is rotated into position across the fracture or separation between adjacent bones and into the adjacent bone or bone fragment, and the proximal anchor is distally advanced to apply secondary compression and lock the device into place. The device may also be used for soft tissue attachments.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: June 21, 2005
    Assignee: Triage Medical, Inc.
    Inventors: Gerard von Hoffmann, Victor V. Cachia, Brad S. Culbert
  • Patent number: 6890333
    Abstract: Disclosed is a fracture fixation device, for reducing and compressing fractures in a bone. The fixation device includes an elongate body comprising a first portion and a second portion that are detachably coupled to each other. The first portion defines a helical cancellous bone anchor and the second portion defines a distal end. An axially moveable proximal anchor is carried by the proximal end of the fixation device and is rotationally locked to the first portion. The device is rotated into position across the femoral neck and into the femoral head, and the proximal anchor is distally advanced to lock the device into place. The second portion is then detached from the first portion.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: May 10, 2005
    Assignee: Triage Medical, Inc.
    Inventors: Gerard von Hoffmann, Victor V. Cachia, Brad S. Culbert
  • Publication number: 20040260290
    Abstract: A bone nail, particularly a proximal femoral nail, has a nail shank having at least one cross-bore near one end and an axial bore having a threaded portion. A screw, for example, a femoral neck screw is provided having a threaded portion and a smooth shank portion between the threaded portion and a screw head, which can be introduced into the cross-bore. An interlocking pin or screw is placed in the axial bore. The locking pin has a male threaded portion interacting with the female threaded portion of the bore. The locking pin or screw has an end portion which engages the smooth shank of the screw to locate it axially and wherein at least the end portion of the locking pin is made of an elastically and/or plastically deformable material.
    Type: Application
    Filed: June 16, 2004
    Publication date: December 23, 2004
    Applicant: Stryker Trauma GmbH
    Inventors: Nils Zander, Axel Cremer
  • Publication number: 20040260289
    Abstract: Deployment systems for deploying a bone fixation device are disclosed herein. One embodiment of a deployment system includes a syringe-shaped body configured to provide proximal traction to a bone fixation device in response to a compressive force between a finger grip and a plunger adapted to be engaged by the heel of a clinician's hand. The device may include a collet for gripping a proximal pin of a fixation device. The deployment device may also include a tool that includes an elongate body with a distal tip adapted to rotationally engage a bone fixation device in order to axially rotate the fixation device. A further deployment device embodiment includes a cauterizing tip for heat-cutting an excess portion of a pin of a bone fixation device.
    Type: Application
    Filed: March 1, 2004
    Publication date: December 23, 2004
    Inventors: Martin Padget, Brad S. Culbert
  • Publication number: 20040199162
    Abstract: Disclosed is a fracture fixation device, for reducing and compressing fractures in a bone. The fixation device includes an elongate body comprising a first portion and a second portion that are detachably coupled to each other. The first portion defines a helical cancellous bone anchor and the second portion defines a distal end. An axially moveable proximal anchor is carried by the proximal end of the fixation device and is rotationally locked to the first portion. The device is rotated into position across the femoral neck and into the femoral head, and the proximal anchor is distally advanced to lock the device into place. The second portion is then detached from the first portion.
    Type: Application
    Filed: April 23, 2004
    Publication date: October 7, 2004
    Inventors: Gerard von Hoffmann, Victor V. Cachia, Brad S. Culbert
  • Publication number: 20040068261
    Abstract: The invention provides an osteosynthesis and compression screw that is self-boring and self-tapping for the purpose of coaptation of small bone fragments.
    Type: Application
    Filed: July 7, 2003
    Publication date: April 8, 2004
    Inventors: Eric Stephane Fourcault, Theo Jan Maria Knevels, Jean-Christophe Alain Giet, Bertrand Xavier Francois Gauneau
  • Patent number: 6702823
    Abstract: A device for identifying the position of the distal holes for passage of securement screws provided in an intramedullary nail inserted in a medullary canal of a long bone, having an arm that protrudes from said medullary canal, provided with a fixing element for rotational and axial fixing to the end of said nail, the arm comprising a portion that protrudes outside the bone provided with elements for the coupling, at a selective distance, of a hollow stem which encloses a plurality of channels allowing sliding therein of guiding wires for guiding a cannulated bone drilling tool and at least one securement screw to be inserted after removal of the cannulated tool through the bone and distal holes of the intramedullary nail.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: March 9, 2004
    Assignee: Hit Medica S.r.l.
    Inventor: Ciro Rosario Iaia
  • Publication number: 20040010252
    Abstract: A locking nail for treating fractures of tubular bones has at least one cross-bore is provided at one end for the reception of a bone screw. The nail has a female thread at the end with the cross-bore for connection to a nail retention screw. The nail has an anti-rotation feature to anti-rotationally secure the rotational position of a joining sleeve which joins a targeting apparatus relative to the locking nail.
    Type: Application
    Filed: March 19, 2003
    Publication date: January 15, 2004
    Applicant: Stryker Trauma GmbH
    Inventors: Nils Zander, Axel Cremer
  • Publication number: 20040002759
    Abstract: Arthroplasty devices having improved bone in growth to provide a more secure connection within the body. Different embodiments disclosed include devices having threaded intramedullary components, devices configured to receive bone growth promoting substances, devices with resorbable components, and devices configured to reduce shear stress.
    Type: Application
    Filed: June 27, 2003
    Publication date: January 1, 2004
    Inventor: Bret A. Ferree
  • Patent number: 6652529
    Abstract: Methods and apparatus for treating fractures of the distal femur are disclosed. In one embodiment, the apparatus comprises an intramedullary nail and blade. The intramedullary nail has a passage through a distal end for accepting a locking screw and a blade passage which extends through a proximal end of the intramedullary nail. The blade has a surface which when engaged with the femur resists relative rotation between the blade and femur and is also configured to cooperate with the blade passage to resist rotation of the blade with respect to the intramedullary nail. In accordance with a method, the intramedullary nail is extended into the medullary space of a femur from the distal end. The blade is positioned transversely to the intramedullary nail in a portion of the femur distal of the fracture. The blade is fixed, such as with a locking screw, to prevent axial movement relative to the intramedullary nail.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: November 25, 2003
    Inventor: Todd V. Swanson
  • Publication number: 20030114855
    Abstract: An intramedullary nail, comprises a proximal portion, a middle portion and a distal portion. The proximal portion has a longitudinal slot and the distal portion has at least one transversal bore. The proximal portion has a longitudinal axis and a longitudinal bore extending over the longitudinal extension of the slot in the distal direction. The longitudinal bore has an internal thread. An insert which is intended to be inserted in the longitudinal bore. The insert comprises a guiding bore in the form of a slot which is intended to receive fixing elements. The alignment of the guiding bore of said insert is transverse with respect to the longitudinal axis of the proximal portion. The insert has a compression screw adapted to be screwed into said internal thread of the longitudinal bore of the proximal portion to move a fixing element in the direction of the longitudinal axis of the intramedullary nail.
    Type: Application
    Filed: January 30, 2003
    Publication date: June 19, 2003
    Applicant: Stryker Trauma-Selzach AG
    Inventors: Thomas Wahl, Volker Buhren
  • Patent number: 6579294
    Abstract: A locking nail includes a shank, at least one cross-bore close to one end and at least one cross-bore close to the other end. The cross-bores for receiving a bone screw each. An additional cross-bore located at one end of the nail is of an elongate shape in the longitudinal direction of the nail. A female thread is formed in a hollow-designed shank portion having the elongate cross-bore. A locking member with a male-threaded portion which is adapted to be screwed into the female thread in the hollow portion and interact with the bone screw in the elongate cross-bore in order to displace it transversely to its longitudinal axis in the cross-bore. A second cross-bore is provided for a bone screw between the elongate cross-bore and the adjacent end of the shank.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: June 17, 2003
    Assignee: Stryker Trauma GmbH
    Inventor: Bernd Robioneck
  • Patent number: 6575976
    Abstract: A bioabsorbable, cannulated expandable tissue anchor for sutureless soft tissue fixation to bone, particularly in arthroscopic shoulder surgery. The anchor is provided with a ribbed shaft and a head for securing the soft tissue to bone. The shaft of the anchor is divided into at least two legs by longitudinal slots which extend from the distal end of the anchor. After the anchor is installed through tissue and into bone, a dowel is inserted into the proximal end of the cannulated shaft to axially spread apart the legs of the shaft by opening the longitudinal slots, thereby securing the anchor in the bone.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: June 10, 2003
    Assignee: Arthrex, Inc.
    Inventor: R. Donald Grafton
  • Patent number: 6575974
    Abstract: A screwdriver for re-joining first and second pieces of a fractured bone in cooperation with a connector plate. A screw has an screw-shaped inner end for biting into the bone upon passing through a bore of the connector plate, and out of a hole in the first bone piece. The screwdriver includes a first shaft unit to engage and rotate the screw to move the screw axially, and a second shaft unit to rotate an axially movable sleeve. Axial movement of the first shaft unit moves the screw so that the outer end of the screw passes through the sleeve and into the second shaft unit such that the inner end of the screw protrudes inwardly from an inner end of the sleeve, whereby a threaded outer end of the sleeve is engaged with the bore of the connector plate before the screw is driven into the bone.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: June 10, 2003
    Inventor: Yechiel Gotfried
  • Patent number: 6569165
    Abstract: An intramedullary nail, comprises a proximal portion, a middle portion and a distal portion. The proximal portion has a longitudinal slot and the distal portion has at least one transversal bore. The proximal portion has a longitudinal axis and a longitudinal bore extending over the longitudinal extension of the slot in the distal direction. The longitudinal bore has an internal thread. An insert which is intended to be inserted in the longitudinal bore. The insert comprises a guiding bore in the form of a slot which is intended to receive fixing elements. The alignment of the guiding bore of said insert is transverse with respect to the longitudinal axis of the proximal portion. The insert has a compression screw adapted to be screwed into said internal thread of the longitudinal bore of the proximal portion to move a fixing element in the direction of the longitudinal axis of the intramedullary nail.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: May 27, 2003
    Assignee: Stryker Trauma Selzach AG
    Inventors: Thomas Wahl, Volker Bühren
  • Patent number: 6558388
    Abstract: With the invention a intramedullary nail preferably for the humerus is shown which comprises a securing head for a hammering-in and aiming device, with the intramedullary nail having at least one transverse bore (2) adjoining at the securing head (1), and which comprises an entry tip in the vicinity of which anchoring elements can be extended radially. The anchoring elements are combined in a claw (5) of curved wires (6), with the wires being elastically deformed inside the intramedullary nail in a not outwardly moved state and springing out radially with an axial forwarding of the claw and assuming their original curved shape.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: May 6, 2003
    Assignee: Sulzer Orthopedics Ltd.
    Inventors: Eric Bartsch, Maja Bürgi
  • Publication number: 20030083662
    Abstract: An orthopaedic implant fixation using a surgically created bone cavity as a mold for forming an anchor from an in-situ hardenable material. An in-situ formed anchor of the present invention is especially useful for attaching an implant to osteoporotic cancellous bone. The injectable nature of the in-situ formed anchor allows implants to be adapted to minimally invasive surgical techniques. The present invention can be adapted to numerous implants or implant system components to include fasteners, pins, nails, intramedullary nails, and suture anchors. Applications include bone fracture fixation, bone fracture prevention, and soft-tissue repair.
    Type: Application
    Filed: October 31, 2002
    Publication date: May 1, 2003
    Inventor: Lance M. Middleton
  • Patent number: 6547791
    Abstract: The tibia nail comprises a tube including a continuous longitudinal bore and includes a proximal anchoring portion with several cross-bores, an adjoining connecting portion which is flexurally resilient in an anterior and posterior direction, a shank adjoining it, and a distal anchoring portion. The anchoring portion is bent away with respect to the shank and has an elongated hole through which a locking screw may be placed. The tibia may be compressed by means of a compression screw inserted into a longitudinal threaded bore. The tibia nail enables retrograde implantation, which has been considered to be impossible for the tibia up to now.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: April 15, 2003
    Assignee: Stryker Trauma - Selzach AG
    Inventors: Volker Bühren, Thomas Wahl, Lukas Sutter, Andreas Bernhard, Gunther O. Hofmann, Oliver Gonschorek
  • Patent number: 6511481
    Abstract: Disclosed is a femoral neck fracture fixation device, for reducing and compressing fractures in the proximal femur. The fixation device includes an elongate body with a helical cancellous bone anchor on a distal end. An axially moveable proximal anchor is carried by the proximal end of the fixation device. The device is rotated into position across the femoral neck and into the femoral head, and the proximal anchor is distally advanced to lock the device into place.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: January 28, 2003
    Assignee: Triage Medical, Inc.
    Inventors: Gerard von Hoffmann, Victor V. Cachia, Brad S. Culbert
  • Publication number: 20030018336
    Abstract: Long bone fracture fixation systems, and methods for using same, are described. The systems primarily include an intramedullary nail having an elongated throughbore and a first slot for receiving transcortical screws and another slot for receiving an insert. A modular sleeve having a throughbore and a pair of openings for receiving transcortical screws and another pair of dissimilarly shaped openings for receiving the insert are placed over the proximal portion of the intramedullary nail. The modular sleeve can be provided with various opening patterns for receiving transcortical screws at various angles relative to the intramedullary nail. The insert is then properly positioned and is held in place by a hollow set screw disposed within, and coaxial to, the throughbore of the intramedullary nail. In this manner, the throughbore of the intramedullary nail is unobstructed, thus allowing instrumentation to be freely inserted through the entire length of the throughbore.
    Type: Application
    Filed: July 17, 2001
    Publication date: January 23, 2003
    Inventor: Mark Vandewalle
  • Patent number: 6488684
    Abstract: An intramedullary nail system for reducing and fixing fractures in long bones includes an elongated intramedullary nail having radial portals about the circumference. Tang assemblies are slidably telescoped inside the nail with resilient tangs which are deployed through the portals to interlock the nail and the portions of the bone.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: December 3, 2002
    Inventors: Dale G. Bramlet, Patrick J. Cosgrove, John A. Sodeika, Peter M. Sterghos
  • Publication number: 20020161369
    Abstract: An intramedullary nail system for reducing and fixing fractures in long bones includes an elongated intramedullary nail having radial portals about the circumference. Tang assemblies are slidably telescoped inside the nail with resilient tangs which are deployed through the portals to interlock the nail and the portions of the bone.
    Type: Application
    Filed: April 25, 2001
    Publication date: October 31, 2002
    Inventors: Dale G. Bramlet, Patrick J. Cosgrove, John A. Sodeika, Peter M. Sterghos
  • Patent number: 6461360
    Abstract: The locking nail for the repair of femur shaft fractures, also in connection with trochanteric femur fractures, comprises a proximal nail section (2) and a distal nail section (3) adjoining the latter, with the nail sections (2, 3) having bores (2e, 2f, 2h, 2i, 3a, 3b, 3c) for the reception of bone screws, and with the distal nail section (3) having a curvature extending in an anterior-posterior plane (apE) and corresponding substantially to the antecurvature of the femur, with the proximal nail section (2) having at least over a partial section (2a, 2b) a continuous curvature, in particular with constant radius of curvature (R2), extending in a lateral-medial plane (lmE).
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: October 8, 2002
    Assignee: Sulzer Orthopedics Ltd.
    Inventor: Michael Adam
  • Publication number: 20020143333
    Abstract: Disclosed is a femoral neck fracture fixation device, for reducing and compressing fractures in the proximal femur. The fixation device includes an elongate body with a helical cancellous bone anchor on a distal end. An axially moveable proximal anchor is carried by the proximal end of the fixation device. The device is rotated into position across the femoral neck and into the femoral head, and the proximal anchor is distally advanced to lock the device into place.
    Type: Application
    Filed: March 30, 2001
    Publication date: October 3, 2002
    Inventors: Gerard von Hoffmann, Victor V. Cachia, Brad S. Culbert
  • Publication number: 20020143335
    Abstract: Disclosed is a bone fracture fixation device, such as for reducing and compressing fractures in the proximal femur. The fixation device includes an elongate body with a helical cancellous bone anchor on a distal end. An axially moveable proximal anchor is carried by the proximal end of the fixation device. The device is rotated into position across the fracture or separation between adjacent bones and into the adjacent bone or bone fragment, and the proximal anchor is distally advanced to apply secondary compression and lock the device into place. The device may also be used for soft tissue attachments.
    Type: Application
    Filed: November 13, 2001
    Publication date: October 3, 2002
    Inventors: Gerard von Hoffmann, Victor V. Cachia, Brad S. Culbert
  • Publication number: 20020143334
    Abstract: Disclosed is a fracture fixation device, for reducing and compressing fractures in a bone. The fixation device includes an elongate body comprising a first portion and a second portion that are detachably coupled to each other. The first portion defines a helical cancellous bone anchor and the second portion defines a distal end. An axially moveable proximal anchor is carried by the proximal end of the fixation device and is rotationally locked to the first portion. The device is rotated into position across the femoral neck and into the femoral head, and the proximal anchor is distally advanced to lock the device into place. The second portion is then detached from the first portion.
    Type: Application
    Filed: November 13, 2001
    Publication date: October 3, 2002
    Inventors: Gerard von Hoffmann, Victor V. Cachia, Brad S. Culbert
  • Publication number: 20020099379
    Abstract: The locking nail for the repair of femur shaft fractures, also in connection with trochanteric femur fractures, comprises a proximal nail section (2) and a distal nail section (3) adjoining the latter, with the nail sections (2, 3) having bores (2e, 2f, 2h, 2i, 3a, 3b, 3c) for the reception of bone screws, and with the distal nail section (3) having a curvature extending in an anterior-posterior plane (apE) and corresponding substantially to the antecurvature of the femur, with the proximal nail section (2) having at least over a partial section (2a, 2b) a continuous curvature, in particular with constant radius of curvature (R2), extending in a lateral-medial plane (lmE).
    Type: Application
    Filed: April 27, 2000
    Publication date: July 25, 2002
    Inventor: Michael Adam
  • Patent number: 6423066
    Abstract: A hip neck screw having a shank, a male-threaded portion at the proximal end thereof and areas for engagement by a tool wherein the screw is designed in such a way that it is adapted to be passed through a bore of a supporting device adapted to be mounted on the femur, preferably a locking nail and to be held therein. The neck screw has axially parallel grooves extending from the distal end are formed at opposite sides, of which at least one extends into the threaded portion. A fork-like blade is provided having blade legs which are accommodated by the grooves and has a connecting portion of the legs adapted to be connected to the distal end of the screw shank.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: July 23, 2002
    Assignee: Stryker Trauma GmbH
    Inventors: Hans Erich Harder, Bernhard Karich
  • Patent number: 6409730
    Abstract: An osteosynthetic implant for use in treating fractures to the head and neck of the humerus. The implant includes a body, a helically twisted blade having an oblate cross section, and a circumferential collar having a plurality of attachment points for sutures.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: June 25, 2002
    Assignee: Synthes (USA)
    Inventors: James M. Green, Stanley J. Kmiec, Jr.
  • Patent number: 6406477
    Abstract: A lag screw for connecting a bone portion separated from the femur, by fracture, to the main portion thereof is fixedly secured in the separated bone portion and extends through main portion of the femur. A nail member is installed in the femur in order to fix the lag screw to the femur. The lag screw is secured in the nail member by a set screw inserted into an outer end of the nail member. In order to prevent the rotation of the separated bone portion about the lag screw, an auxiliary connector is inserted through the nail member between the lag screw and the set screw. The lag screw is clamped by the set screw via a spacer for transmitting a clamping force.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: June 18, 2002
    Assignee: Koi Inc.
    Inventor: Hiroo Fujiwara
  • Patent number: 6387098
    Abstract: An intramedullary catheter nail apparatus and method is disclosed that provides both the mechanical stabiliazation and therapeutic drug delivery needed to optimize long bone repair. In the preferred embodiment, the intramedullary catheter nail contains circular channels running along its length that have open communication with the outer surface of the nail, but are primarily receded within the nail. Enclosed in these channels are end-capped, catheter tubes with perforated regions mared with radiographically-visible rings. Once the nail is mechanically fixed within the repaired long bone, the catheter tubes are retracted the needed distance so as to position the perforated regions adjacent to the site of bone fracture or disease. Internal catheter tubes would preferably unite as exiting the nail. Catheter tubing would exit the patient's body through a subcutaneous port, thus allowing convenient and sterile connection to a pumping source of therapeutic agents, such as an infusion pump.
    Type: Grant
    Filed: April 22, 2000
    Date of Patent: May 14, 2002
    Inventors: Peter Alexander Cole, Douglas Eric Parsell
  • Patent number: 6383185
    Abstract: The medullary nail (10) for bone distraction has an electric motor drive (20) that is located in its interior (11), preferably in its interior (11) in the area of its tip (12), and is connected with a reception antenna (32) for feeding energy via an electrical connection (31). The reception antenna (32) and the electrical connection (31) are located entirely in the interior (11) of the medullary nail (10). The medullary nail (10) is equipped with an orifice (14), which faces the reception antenna (32) and allows the feeding of energy.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: May 7, 2002
    Inventor: Rainer Baumgart
  • Patent number: 6379360
    Abstract: The invention relates to a device for introducing a spiral blade into an intramedullary nail. The device includes a target-finding stay with a through hole, a guide sleeve attached coaxially in relation to the through hole, and a mandrel which is able to slide in the guide sleeve. The spiral blade is removable attached to the front end of the mandrel. The peripheral surfaces of the mandrel and the through hole of the guide sleeve have engaging mechanisms that interact with each other in such a way that the mandrel can be moved in the through hole of the guide sleeve only in a screw-like manner. An axially movable tissue-protective sleeve can be attached coaxially in relation to the mandrel.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: April 30, 2002
    Assignee: Synthes (USA)
    Inventors: Roman Ackeret, Peter Senn, Ruth Hungerbühler
  • Publication number: 20020032445
    Abstract: A lag screw for connecting a bone portion separated from the femur, by fracture, to the main portion thereof is fixedly secured in the separated bone portion and extends through main portion of the femur. A nail member is installed in the femur in order to fix the lag screw to the femur. The lag screw is secured in the nail member by a set screw inserted into an outer end of the nail member. In order to prevent the rotation of the separated bone portion about the lag screw, an auxiliary connector is inserted through the nail member between the lag screw and the set screw. The lag screw is clamped by the set screw via a spacer for transmitting a clamping force.
    Type: Application
    Filed: January 22, 2001
    Publication date: March 14, 2002
    Inventor: Hiroo Fujiwara
  • Publication number: 20010049529
    Abstract: Disclosed is a bone fixation device of the type useful for connecting soft tissue or tendon to bone or for connecting two or more bones or bone fragments together. The device comprises an elongate body having a distal anchor thereon. A proximal anchor is axially movably disposed with respect to the distal anchor, to accommodate different bone dimensions and permit appropriate tensioning of the fixation device. In one embodiment, the fixation device is optimized for construction from a biocompatible metal such as titanium, and the proximal anchor is removable to permit removal of the fixation device.
    Type: Application
    Filed: March 22, 2001
    Publication date: December 6, 2001
    Inventors: Victor V. Cachia, Gerard von Hoffmann, Brad S. Culbert
  • Patent number: 6319255
    Abstract: A prophylactic implant is provided for protecting osteoporosis-affected bone segments against fractures, in particular the neck of the femur, the vertebral column and the wrist. According to a proposed solution, the implant comprises a thin-walled hollow reinforcing body (1) having such a large number of passages (2) in its outer wall (3) that the ratio of the total area of the passages (2) to the total surface area is at least 1:2.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: November 20, 2001
    Assignee: ESKA Implants GmbH & Co.
    Inventors: Hans Grundei, Wolfram Thomas
  • Publication number: 20010012939
    Abstract: An intramedullary nail, comprises a proximal portion, a middle portion and a distal portion. The proximal portion has a longitudinal slot and the distal portion has at least one transversal bore. The proximal portion has a longitudinal axis and a longitudinal bore extending over the longitudinal extension of the slot in the distal direction. The longitudinal bore has an internal thread. An insert which is intended to be inserted in the longitudinal bore. The insert comprises a guiding bore in the form of a slot which is intended to receive fixing elements. The alignment of the guiding bore of said insert is transverse with respect to the longitudinal axis of the proximal portion. The insert has a compression screw adapted to be screwed into said internal thread of the longitudinal bore of the proximal portion to move a fixing element in the direction of the longitudinal axis of the intramedullary nail.
    Type: Application
    Filed: March 20, 2001
    Publication date: August 9, 2001
    Inventors: Thomas Wahl, Volker Buhren
  • Patent number: 6270499
    Abstract: A bone fracture fixation device according to the present invention includes an intramedullary nail and an intramedullary nail head. The intramedullary nail head can be set and fixed on the proximal end of the intramedullary nail and has at least one bore which extends transversely to the central axis of the intramedullary nail for form-fittingly receiving at a stable angle a bone fastener. At least one threaded bore is provided between the distal end and the proximal end of the intramedullary nail.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: August 7, 2001
    Assignee: Synthes (U.S.A.)
    Inventors: Dieter Leu, Peter Däscher
  • Patent number: 6261290
    Abstract: An intramedullary locking nail for the treatment of femoral neck fractures has a generally elongate body. The elongate body has a longitudinal axis, a proximal portion and a distal portion, wherein the axis is bent between the proximal and distal portions. The proximal portion has a transverse passageway inclined to the axis for receiving, in use, a femoral neck blade. The passageway is formed by two pairs of opposing walls, one of the pairs of opposing walls has walls that are substantially flat and lie in planes that are substantially parallel to the longitudinal axis of the nail. The distal portion has at least one cross bore having a generally oblong cross-section for receiving, in use, an element for locking the nail to a patient's bone. The oblong cross-section of the bore permits, in use, selection in the degree of anchoring of the nail to the bone depending upon where the locking element is located in the bore.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: July 17, 2001
    Inventor: Wilhelm Friedl
  • Patent number: 6238126
    Abstract: An adjustable two-dimensional joint for use in hip compression screw assemblies, allows for relative alignment of the lag screw and angle plate, even when these components are effectively fitted to the respective bone sections. The joint has first and second elements (2, 4), formed with complementary male and female cylindrical surfaces (10, 12), which define the plane of adjustment. The first element (2) also defines a hinge point (6) at the axis of the male cylindrical surface (10), and the second element (4) includes a fulcrum (8) extending to the axis of the female cylindrical surface (12). A setting device (20) extends between the two elements (2, 4), which can be extended or contracted to alter the angle subtended at the hinge point/fulcrum (6, 8).
    Type: Grant
    Filed: January 4, 1999
    Date of Patent: May 29, 2001
    Inventor: Vagn Erik Dall
  • Patent number: 6228086
    Abstract: An intramedullary nail apparatus comprises a nail having a proximal portion, a middle portion and a distal portion. The proximal portion has a longitudinal slot adapted to receive at least one fixing element and the distal portion has at least one transverse bore. The proximal portion has a longitudinal axial bore. The apparatus further includes a set of inserts, each of which is adapted to be inserted in the longitudinal bore. Each insert has at least one guiding bore, the orientation and position of which is different for each of the inserts. A method of treating fractures utilizing the intramedullary nail apparatus is also disclosed.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: May 8, 2001
    Assignee: Stryker Trauma-Selzach AG
    Inventors: Thomas Wahl, Volker Bühren
  • Patent number: 6221074
    Abstract: A femoral intramedullary rod system capable of treating a variety of femoral bone fractures using a uniform intramedullary rod design. The system generally comprising an intramedullary rod defining an opening having an upper surface and a transverse member including a bone engaging portion and a connection portion defining a thru-hole with the nail sized to pass therethrough. A pin is selectively coupled to the transverse member to rigidly assemble the transverse member to the nail when the nail is passed through the thru-hole and the pin is received within the opening.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: April 24, 2001
    Assignee: Orthodyne, Inc.
    Inventors: J. Dean Cole, Carl A. Knobloch