STRYKER TRAUMA SA Patent applications |
Patent application number | Title | Published |
20160074082 | FLEXIBLE LOCKED PLATE FIXATION - A bone fixation device is disclosed that permits some movement of different portions of a fractured bone when the device is affixed thereto. Various embodiments are disclosed, including bone plates that have fixed holes and floating holes therethrough for receiving bone screws, and bone plates including oblong holes allowing for screw movement. | 03-17-2016 |
20150148176 | TORQUE-LIMITING ASSEMBLY FOR A SURGICAL POWERTOOL - A torque-limiting assembly for a surgical powertool has an input shaft and an output shaft. Two relatively rotatable parts of the assembly are configured to be locked against relative rotation by at least one shearable piece for torque transfer between the input shaft and the output shaft up to a torque limit. The assembly further comprises at least one shear off structure rotationally fixed to one of the two relatively rotatable parts for shearing off a portion of the at least one shearable piece above the torque limit so as to unlock the two relatively rotatable parts for relative rotation. | 05-28-2015 |
20150133933 | ROD COUPLER WITH VARIABLE ANKLE POSITION - The rod coupler according to the present invention comprises two clamping jaws and locking means for locking said clamping jaws against one another. Each clamping jaw comprises an outside surface and a clamping surface, the latter providing at least a first and a second groove. Each groove runs laterally from a different part of the outside surface extending into the rod coupler, wherein longitudinal axis of the first groove and the second groove include an angle that is equal to or less than 160 degrees. Opposing grooves form an aperture. The apertures are adapted for receiving a rod if the locking means is released. Clamping jaws that are locked by the locking means clamp the rods received in said apertures. | 05-14-2015 |
20140257288 | MINI-RAIL EXTERNAL FIXATOR - Described herein are external fixation systems for correcting bone deformities in adjacent bones or fragments thereof. The systems herein include first and second elongate rods that translate with respect to one another via rotation of an actuation member at an end of one of the rods. At least one housing is coupled along a length of one of the rods. The at least one housing includes at least one pin clamping member for clamping an end of a fixation pin therein. When the at least one pin clamping member is in an unlocked state, the fixation pin can rotate in polyaxial directions. When in a locked state, the angle of fixation wire with respect to the rods is set. The locked and unlocked state of the at least one pin clamping member is determined by the positing of a fixation member with respect to the housing it is coupled to. | 09-11-2014 |
20140257287 | ROSE GEAR FOR EXTERNAL FIXATION CLAMP - Disclosed herein are external fixation devices including at least an elongate rod, a housing and an actuation member. The housing is coupled to the elongate rod and the actuation member is rotatably coupled to the housing such that a central longitudinal axis of the actuation member is angled and offset with respect to a central longitudinal axis of the elongate rod. Rotation of an actuation portion of the actuation member about the central longitudinal axis thereof in a first radial direction causes the housing to translate along the central longitudinal axis of the elongate rod in a first direction. | 09-11-2014 |
20140249586 | PELVIC BONE PLATE - A bone plate has a first frame portion with a plurality of apertures. The apertures may have central axes angled with respect to a bone contacting surface adjacent thereto at an angle of other than 90°. The plate has a second plate portion comprising a plurality of apertures therethrough and has a first end connected to the first plate portion. The plate has a third plate portion having first and second ends respectively connected to a second end of the second plate portion and to the first plate portion at a point thereon closer to a center of the first plate portion than the first end of the second plate portion to the first plate portion. The first, second and third plate portions having an arcuate shape capable of conforming to an arcuate bone surface, the bone contacting surface forming a concave portion of the arcuate shape. | 09-04-2014 |
20140236245 | SCREW THREAD WITH FLATTENED PEAKS - A bone fastener for use in orthopedic surgery for fixing an implant to bone has a threaded or unthreaded shaft configured to engage bone and a head having a thread on an outer surface to engage the implant. The thread on the head of the fastener has a profile in cross section that includes arcuate peaks with a flat on the outer surface of the peak. | 08-21-2014 |
20140155894 | FIXATION CLAMP - A fixation clamp, more particularly for use in an external fixation system for holding bone fragments adjacent to each other with the help of fixation elements, has at least one clamping assembly having at least one reception to accommodate a fixation element along the longitudinal axis of the reception and at least one locking element extending through the clamping assemblies for blocking the position of the clamping assemblies in a defined angular position. Between said locking element and said at least one clamping assembly there is arranged a washer. The clamping assembly comprises a first contact surface which is spherical and convex and in that said washer comprises a second contact surface which is spherical and concave, wherein the first contact surface is in contact with the second contact surface. | 06-05-2014 |
20140090527 | SCREW CUTTING TOOL - A screw cutting tool for cutting a screw comprising a first grip having a first cutting aperture, a second grip pivotally connected to the first grip, the second grip having a second cutting aperture, a measuring scale attached to a proximal end of the first or second grip, and a screw holder slidably attached to the measuring scale having a hole extending therethrough, wherein the hole aligns with the first and second cutting apertures in at least one position. | 04-03-2014 |
20140058389 | BONE TRANSPORT EXTERNAL FIXATION FRAME - Disclosed herein are systems and methods for manipulating the orientation of a plurality of bone fragments with respect to one another. A bone transport frame including first and second rings, a plurality of elongate struts, and a plurality of ring transport assemblies for orienting a first bone segment with respect to a second bone segment is disclosed. A third ring may be included in the bone transport frame for orienting a third bone segment with respect to the first and second bone segments. Manipulation of an adjustable member of the bone transport frame can transport a ring in either a proximal or distal direction with respect to other rings of the frame. Manipulation of another adjustable member of the bone transport frame can translate a central axis of one of the rings either toward or away from the central axes of the plurality of elongate struts. | 02-27-2014 |
20140018810 | DRILL GUIDE - A drill guide for drilling bone comprising a housing having a bore running through the housing is disclosed. In one embodiment, the drill guide may comprise a locking member coupled to the housing that is adapted to engage with a locking portion of a drill bit to lock the drill bit axially within the housing. The locking member may also be adapted to disengage with the drill bit to allow the drill bit to move within the bore of the housing and be inserted into bone. A movable guide may also be provided with the drill guide, such movable guide including a bore for receiving a portion of the drill bit and allowing the same to move axially within the housing. Methods of using the aforementioned drill guide are also disclosed. | 01-16-2014 |
20130331838 | CLAMPING AND ARTICULATION ELEMENT - A two-piece clamping element comprises two separate, i.e., non-integral, opposing first and second clamping jaws forming a laterally open cavity to receive a pin or rod-shaped element. Each clamping jaw has a bore aligned with one another to receive a screw, wherein a pivot bearing is arranged opposite said cavity allowing the two opposing clamping jaws to come in contact to one another. The pivot bearing comprises at least one set of complementary part-cylindrical bearing surface portions. An anti-rotation pin extends between the two jaw members. | 12-12-2013 |
20130310884 | SURGICAL ASSEMBLY - A surgical assembly has a first section having a first hole with a smallest diameter and a second section having a threaded second hole with a minor thread diameter smaller than the smallest diameter of the first hole. The first hole encloses a center axis of the second hole and a clearance is provided between the first section and the second section. The assembly includes a screw member having a length for engaging the first hole and the second hole so as to bridge the clearance. The screw member has a first portion with a largest outer diameter smaller than or equal to the smallest diameter of the first hole, and a threaded second portion axially spaced from the first portion and configured to threadedly engage the second hole. A major thread diameter of the second portion is larger than the smallest diameter of the first hole. | 11-21-2013 |
20130253512 | DYNAMIC EXTERNAL FIXATOR AND METHODS FOR USE - An external fixation system has a planar ring with an adjustable device having a body releasably mounted on the ring. The adjustable device includes a first member for movement in a direction generally perpendicular to the ring. A second member is mounted on the first member for movement in a direction parallel to a side wall of the planar ring. A method for treating a broken bone includes providing an external fixation system and inserting a first k-wire or half pin through a first piece of the bone and affixing the first k-wire or half pin to the ring, then inserting a second k-wire or half pin through a second piece of bone and affixing the second k-wire or half pin to the adjustable device. The pieces of bone are realigned, compressed, or distracted by adjusting at least one of the first and second adjustable members. | 09-26-2013 |
20130238032 | BONE PLATE AND AIMING BLOCK - A bone-fixation system is disclosed, the system comprising a bone plate having a section with a plurality of holes and a recessed area at least partially surrounding one or more of the holes, the recessed area defining a floor surface situated below a top surface of the plate, the floor surface extending at least partially between some or all of the plurality of holes, and an aiming device having a plurality of holes arranged to align with the plurality of holes in the plate and an extension, the extension being receivable within the recessed area and defining a bottom surface adapted to at least partially rest on the floor surface. | 09-12-2013 |
20130211461 | ATTACHMENT DEVICE FOR A BONE PLATE - An attachment device for attaching a bone plate to a bone having a medullary canal is provided. The attachment device comprises a central portion having a recess to accommodate the bone plate and at least two lateral fixation support members projecting from the central portion. The lateral fixation support members are arranged on opposite sides of the central portion, wherein each lateral fixation support member comprises a hole extending through the lateral fixation support member and are adapted to accommodate a fixation element therethrough to fix the attachment device to bone. The angles of the hole axes of the holes are different with respect to a perpendicular bisector of the centers of the holes and the hole axes lie outside of the medullary canal. | 08-15-2013 |
20130204248 | EXTERNAL FIXATOR SYSTEM - An external fixation frame for correcting a bone deformity includes a first fixation ring and a second fixation ring. A posterior adjustable length strut couples a posterior portion of the first fixation ring to a posterior portion of the second fixation ring and has universal joint. Medial and lateral adjustable length struts couples medial and lateral portions of the first fixation ring to medial and lateral portions of the second fixation ring respectively, each of the medial and lateral adjustable length struts including a constrained hinge joint. The fixation frame also includes a half ring hingedly coupled to the second fixation ring, and an anterior adjustable length strut coupling an anterior portion of the first fixation ring to the half ring. | 08-08-2013 |
20130178860 | SOFT TISSUE PROTECTOR AND DRILL GUIDE FOR AN IMPLANTATION KIT - A drill guide for guiding elements, especially drill bits and implants of an implantation kit during a surgical intervention, has a main body having a gripping portion. The drill guide has an upper and a lower central opening along its longitudinal axis with a through going cavity for receiving the element to be guided. A lower contact surface is positioned on an object, such as a bone, on or into which the element is to be guided. The diameter of the through going cavity can be varied by a.) radial positioning of three or four jaws inside the cavity through a groove-slide block system and/or b.) against the force of a spring at the lower free end of guiding extensions. The spring is provided on the back side of the extensions which bear against the inner wall of the drill guide sleeve. | 07-11-2013 |
20130165979 | WRIST FUSION PLATE - A wrist fusion plate has a proximal portion comprising at least one opening, wherein the proximal portion attaches to the radius by inserting bone screws through the proximal portion opening. A distal plate portion has a plurality of openings and is adapted to be attached to a metacarpal (M) by inserting bone screws through the distal portion attachment openings and into the metacarpal. A central plate portion has at least one attachment opening and is adapted to be attached to a carpal bone by inserting bone screws through the attachment opening. The proximal and distal portions are aligned along a longitudinal axis of the wrist fusion plate. One of the distal portion attachment openings is elongated in a direction perpendicular to the longitudinal axis. | 06-27-2013 |
20130165932 | FIXATION CLAMP WITH THUMBWHEEL - A fixation clamp, more particularly for use in an external fixation system for holding bone fragments adjacent to each other with the help of fixation elements, has at least one clamping assembly having at least one reception opening to accommodate a fixation element along the longitudinal axis of the reception opening. At least one locking element extends through the clamping assembly which locking element provides a clamping force to clamp the fixation element upon tensioning the locking element. The fixation clamp further comprises an actuation element which is in connection with the locking element such that the locking element is actuateable by means of the actuation element, and the actuation element is designed such that it is detachable from the locking element after use and that remounting onto the locking element is prevented after having detached the actuation element from the locking element. | 06-27-2013 |
20130165930 | BOLT AND TOOL WITH ANTI-TORQUE FEATURES - A system for fixing a wire to a surface of an external fixator having a wire adapted to extend through bony structure fastened with respect to the surface. A bolt having a shaft which comprises a threaded section, a head section and at least one clamping element is provided wherein the bolt is adapted to extend through an opening in the external fixation element with a nut, and clamps the wire to the surface. A counter torque tool is used to provide a counter torque while fastening the wire with the bolt and the nut. The bolt comprises a counter torque opening and wherein the counter torque tool comprises a section which is adapted to engage into the counter torque opening of the bolt to apply the counter torque. | 06-27-2013 |
20130158551 | PREVENTION OF RE-USE OF A MEDICAL DEVICE - A disposable medical device is especially an articulation for the relative positioning of fixation bars or of pins of an external fixator, having at least a clamping means to be introduced into the medical device, the clamping means comprises an element that alters its appearance when being heated over a threshold temperature, thus giving optical or mechanical information that the device should not be used a second time. | 06-20-2013 |
20130144289 | FIXATION CLAMP - A fixation clamp for use in an external fixation clamp has a clamping assembly having a reception to accommodate a fixation element. The clamp has a locking element extending through the clamping assembly for blocking the position in a defined angular position. A washer is arranged between the locking element and a central opening of the clamping assembly having a cutout extending radially from the through opening such that the washer is mountable and demountable in a radial direction to a locking element longitudinal axis. The cutout has a smaller distance between its sidewalls then the diameter of the through opening. The locking element has circular cross-section below its head portion adapted to fit through the through opening of the washer but larger than the opening of the cutout and has at least one pair of parallel beveled surfaces spaced closer than the distance between sidewalls of the washer cutout. | 06-06-2013 |
20130110175 | HYBRID PLATE SYSTEM AND METHOD | 05-02-2013 |
20130079775 | ADJUSTMENT TOOL FOR EXTERNAL FIXATOR - An adjustment tool for an external fixator comprises a fitting element for holding fast a clamping assembly of the external fixator. A positioning clamp is provided for fixing the adjustment tool on a rod of the external fixator near the clamping assembly. A connecting element is attached to the fitting element and the positioning clamp is adapted to move the fitting element towards to or away from the positioning clamp. The fitting element comprises a blocking sleeve adapted to push the uppermost jaw of the clamping assembly in the direction of the longitudinal axis of the clamping assembly to block the second upper most jaw against an abutment portion of the fitting element. The tool further comprises an actuation element within the blocking sleeve to actuate the locking element of the clamping assembly for releasing the rod within the clamping assembly without releasing the bone pin. | 03-28-2013 |
20130053899 | BONE PLATE WITH HOOK PORTION - A bone plate for fixing bone fragments to bone is provided. The bone plate comprises an elongated body portion as well as a hook portion. The elongated body portion comprises an attachment opening configured to receive an attachment element for attaching the bone plate to bone. The hook portion extends from an end of the body portion and comprises one or more hooks configured to grasp a bone fragment. Additionally, at least one guiding opening is provided in the hook portion to receive an elongated guiding member for guiding the bone plate towards the bone fragment. | 02-28-2013 |
20130018374 | EXTERNAL FIXATION SYSTEM - An external fixation system comprising: first and second planar at least part-circular ring elements, the first ring element having a circumferential track extending along the part-circular circumference thereof; a plurality of struts each having a first and second end, the first end of each strut coupled to the first ring by a first connector and the second end of each strut coupled to a second ring by a second connector, the first connector including a spherical joint; the second connector non-rotatably coupled to the second ring, the strut second end being coupled to the second connector by a U-joint; shuttles mounted on the track of the first ring for movement there along with one shuttle coupled to each strut; and means for controlling the angular position of each strut second end and means for controlling the position of each shuttle along the circumferential track on the first ring. | 01-17-2013 |
20130006244 | EXTERNAL FIXATOR ELEMENT - A polymeric external fixator element, such as a rod or a pin or a clamp, has at least one contacting surface. At least one of the contacting surfaces of the element responsible to establish connection between the element and a different external fixator element is provided with a rough ablated structure. The clamping can be improved if one of the polymeric elements comprise fibers having fiber parts protruding above the surface. | 01-03-2013 |
20120184958 | BOLT AND TOOL WITH ANTI-TORQUE FEATURES - A system for fixing a wire to a surface of an external fixator having a wire adapted to extend through bony structure fastened with respect to the surface. A bolt having a shaft which comprises a threaded section, a head section and at least one clamping element is provided wherein the bolt is adapted to extend through an opening in the external fixation element with a nut, and clamps the wire to the surface. A counter torque tool is used to provide a counter torque while fastening the wire with the bolt and the nut. The bolt comprises a counter torque opening and wherein the counter torque tool comprises a section which is adapted to engage into the counter torque opening of the bolt to apply the counter torque. | 07-19-2012 |
20120150183 | FIXATION CLAMP - A fixation clamp, more particularly for use in an external fixation system for holding bone fragments adjacent to each other with the help of fixation elements, has at least one clamping assembly having at least one reception to accommodate a fixation element along the longitudinal axis of the reception and at least one locking element extending through the clamping assemblies for blocking the position of the clamping assemblies in a defined angular position. Between said locking element and said at least one clamping assembly there is arranged a washer. The clamping assembly comprises a first contact surface which is spherical and convex and in that said washer comprises a second contact surface which is spherical and concave, wherein the first contact surface is in contact with the second contact surface. | 06-14-2012 |
20120150182 | FIXATION CLAMP WITH THUMBWHEEL - A fixation clamp, more particularly for use in an external fixation system for holding bone fragments adjacent to each other with the help of fixation elements, has at least one clamping assembly having at least one reception opening to accommodate a fixation element along the longitudinal axis of the reception opening. At least one locking element extends through the clamping assembly which locking element provides a clamping force to clamp the fixation element upon tensioning the locking element. The fixation clamp further comprises an actuation element which is in connection with the locking element such that the locking element is actuateable by means of the actuation element, and the actuation element is designed such that it is detachable from the locking element after use and that remounting onto the locking element is prevented after having detached the actuation element from the locking element. | 06-14-2012 |
20120150181 | FIXATION CLAMP - A fixation clamp for use in an external fixation system for holding bone fragments adjacent to each other with the help of fixation elements, has of at least one clamping assembly having at least one reception provided by means of grooves to accommodate a fixation element along the longitudinal axis of the reception. At least one locking element extends through the clamping assemblies for blocking the position of the clamping assemblies in a defined angular position. The clamping assembly comprises a first jaw and a second jaw which are in contact with each other via respective contact surfaces. The clamping assembly comprises at least two orientation devices that extend from and/or into said contact surfaces which at least two orientation devices serve to orient the first jaw with respect to the second jaw. | 06-14-2012 |
20120150180 | ADJUSTMENT TOOL FOR EXTERNAL FIXATOR - An adjustment tool for an external fixator comprises a fitting element for holding fast a clamping assembly of the external fixator. A positioning clamp is provided for fixing the adjustment tool on a rod of the external fixator near the clamping assembly. A connecting element is attached to the fitting element and the positioning clamp is adapted to move the fitting element towards to or away from the positioning clamp. The fitting element comprises a blocking sleeve adapted to push the uppermost jaw of the clamping assembly in the direction of the longitudinal axis of the clamping assembly to block the second upper most jaw against an abutment portion of the fitting element. The tool further comprises an actuation element within the blocking sleeve to actuate the locking element of the clamping assembly for releasing the rod within the clamping assembly without releasing the bone pin. | 06-14-2012 |
20120123414 | CLAMPING PIN - A clamping pin is provided for mounting in an opening of a medical device. The clamping pin comprises an axially extending screw, a first clamping element having a surface inclined to a longitudinal screw axis and provides a first part of a clamping section. A second clamping element has a surface inclined to the longitudinal axis and provides a second part of the clamping section which is complementary to the opening in the medical device. The inclined surfaces of the first and second clamping elements contact. A screw extends at least partly through both the first and second clamping elements. The screw engages one of the clamping elements such that the axial distance between the two clamping elements and the diameter of the clamping section that can come in contact with a surface of the opening in the medical device will be changed upon actuation of the screw. | 05-17-2012 |
20120093575 | COUPLING ELEMENT FOR AN EXTERNAL FIXATOR - Coupling element for an external fixator which connects a pin or rod to a second pin or rod. The coupling element comprises a first coupling section to clamp the first pin or rod in engagement with a second clamp for clamping the second pin or rod and a pivoting section for adjusting the orientation of the first coupling section relative to the post section in the space. The pivoting section extends along a third axis. The first coupling section is rotatable around a first axis with respect to the pivoting section and wherein via the pivoting section the first coupling section is pivotable around a second axis with respect to the post section, wherein the second axis is arranged at an angle to the first axis. | 04-19-2012 |
20120089144 | LOCKING SCREW WITH SYNCHRONIZED THREAD - A targeting system for a bone plate having a bore therethrough with a first thread adjacent an outer surface of the bone plate and a second thread adjacent a bone contacting surface. The first thread has a larger diameter than the second thread. A targeting device has a coupling portion, an outer sleeve with an axial through bore for guiding a boring tool and a bone screw into the bone plate bore. The coupling portion is connected to a first end of the outer sleeve, wherein the coupling portion comprises an exterior threaded portion threadably engageable with the first thread of the bone plate bore and has a through bore having an axis corresponding to the axis of the through bore of the outer sleeve. The outer sleeve and coupling portion comprises two collapsible slits extending parallel to the outer sleeve bore axis dividing the coupling portion in two parts. | 04-12-2012 |
20120055289 | RATCHET WRENCH - A ratchet wrench for use in connection with medical instruments comprises a handle and a drive element which is rotatable around an axis (M) with respect to the handle. The wrench is adapted to tighten or loosen a respective element and a ratchet mechanism which is in connection with the drive element and which permits movement with respect to the handle in a first direction of rotation (R | 03-08-2012 |
20120041439 | EXTERNAL FIXATOR SYSTEM - An external fixator system comprising at least two fixation plates which are arranged at a distance to each another, at least one adjustable length having a first end region and a second end region which are in connection with the fixation plates and at least one actuation unit to adjust the length of the strut in order to adjust the distance and/or orientation between the fixation plates. The actuation unit is in a fixed connection with at least one of the fixation plates as well as with at least one of the end regions of the respective strut in order to connect the strut with the fixation plate. The actuation unit comprises a feedback unit which provides the user with a feedback concerning the degree of the actuation. | 02-16-2012 |
20110313422 | IMPLANT FOR BONE FIXATION - An implant for use in orthopedic surgery for fixation of bone has a shaft region and a head region, both including a plurality of holes for receiving bone fasteners. The head region of the implant has a central screw hole and threaded surrounding screw holes surrounding the central screw hole in a defined configuration. | 12-22-2011 |
20110288549 | EXTERNAL FIXATION SYSTEM - 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. | 11-24-2011 |
20110218580 | BONE FIXATION SYSTEM WITH CURVED PROFILE THREADS - A bone fastener for use in orthopedic surgery for fixing an implant to bone has a threaded or unthreaded shaft configured to engage bone and a head having a thread on an outer surface to engage the implant. The thread on the head of the fastener has a profile in cross section that includes peaks with a curved shape. | 09-08-2011 |
20110087226 | EASY TO CLEAN CLAMPING DEVICE - An easy to clean clamping device has at least one clamping assembly having two jaws. The jaws form at least one recess to accommodate an element to be clamped along the longitudinal axis of the recess. A locking unit is provided to allow closing of the jaws against the force of a spring element. The locking unit has a shaft extending along an axis and through bores of the jaws. The shaft has a head for operating the clamping action abutting against the uppermost jaw. A locking element is provided having a through bore and which locking element can be arranged between the head and the uppermost jaw. One portion of the locking unit has a larger diameter than the bore of the second jaw and the head of the locking unit has a smaller diameter than the bore of the adjacent jaw. The locking element comprises at least one locking surface which can be brought into positive locking with a corresponding surface of the head for blocking removal of the locking element. | 04-14-2011 |
20110082458 | Dynamic External Fixator And Methods For Use - An external fixation system and method for realigning, compressing or distracting broken bones has a planar ring element with an adjustable device having a body releasably mounted on the ring element. The adjustable device includes a first member for movement in a direction generally perpendicular to the ring element. A second member is pivotally connected to the first member for angular movement with respect to the ring. A third member is mounted on the second member for movement in a direction parallel to the second member and with respect to a circumference of the planar ring element. The method includes providing an external fixation system and inserting a k-wire through a first piece of bone and affixing the k-wire or half pin to the ring element. Then inserting a second k-wire or half pin through a second piece of bone and affixing the k-wire or half pin to an adjustable device. The pieces of bone are realigned, compressed or distracted by adjusting at least one of a first and second adjustable member forming the device. | 04-07-2011 |
20110066151 | External fixation component - An external fixation component includes two capture members adapted to capture independently a first and a second element of an external fixation system. A rotation member is provided between the two capture members, coupled to both capture members such that the coupling allows the two capture members to rotate about three axes relative to each other. Each capture member comprises a central locking screw extending therethrough and defining a longitudinal axis of the associated capture member. The rotation member comprises two rotation blockers, each blocker providing one interface surface adapted to be in contact with a complementary interface surface of one of the capture members, each blocker further provides a surface opposite to the interface surface comprising an inner cylindrical surface. The rotation member comprises a central disc element forming a rolling surface as complementary surface to the inner cylindrical surface of the corresponding rotation blocker. The rotation member comprises two nuts, wherein each nut is associated to one locking screw of a corresponding capture member. Each locking screw of a capture member extends through the corresponding rotation blocker and engages the corresponding nut for an individual locking of each capture member. | 03-17-2011 |
20110062204 | PIN CUTTING TOOL - A tool for breaking a shaft has a first and a second tubular element, both provided with inner through bores adapted to receive a first and second portion of a shaft in a first position of the tool. A first handle is fixedly connected with the first tubular element and the second tubular element is connected to a second handle. A bottom surface of the second tubular element is in contact with a neck surface of the first tubular element forming a shearing plane perpendicular to the main axis of the tool. A rotation between the two tubular elements around this axis creates a twisting movement of the two shaft portions received within the two tubular elements, and shears the shaft portions at the shearing plane. The second handle turns the first tubular element around an axis and has a gear engaging the second tubular element for transmitting the rotation of the second handle into a rotation of the second tubular element for producing the twisting movement. | 03-17-2011 |
20100298827 | FIXATION CLAMP - A fixation clamp for use in an external fixation system for holding bone fragments adjacent to each other with the help of fixation elements has at least one clamping assembly having a pair of jaws with at least two different size grooves to accommodate a bone fixation element such as a pin or rod. An alternate clamping assembly has at least three grooves wherein at least two of the grooves have a different size adapted to accommodate a correspondingly sized bone fixation element such as a bone pin. The longitudinal axes of the grooves define a polygon. The jaw pairs can be rotated about a central longitudinal axis to present different size reception cavities towards the pins or rocks depending on their diameter. | 11-25-2010 |
20100234844 | EXERNAL FIXATION SYSTEM - An external fixation system comprising: first and second planar at least part-circular ring elements, the first ring element having a circumferential track extending along the part-circular circumference thereof; a plurality of struts each having a first and second end, the first end of each strut coupled to the first ring by a first connector and the second end of each strut coupled to a second ring by a second connector, the first connector including a spherical joint; the second connector non-rotatably coupled to the second ring, the strut second end being coupled to the second connector by a U-joint; shuttles mounted on the track of the first ring for movement there along with one shuttle coupled to each strut; and means for controlling the angular position of each strut second end and means for controlling the position of each shuttle along the circumferential track on the first ring. | 09-16-2010 |
20100057138 | Locking screw with synchronized thread - A bone fixation system includes a bone plate and a bone screw having a threaded head. The inner surface of the bone plate is adapted for facing a bone surface on which the plate is mounted. The outer surface of the bone plate faces away from the bone surface. A through opening extends from the inner surface to the outer surface of the plate wherein the through opening comprises a guiding portion and a blocking portion. The guiding portion of the opening is provided with a guiding thread for guiding a thread of a shaft of the bone screw. The blocking portion is provided with a blocking thread for blocking a thread of the head of the bone screw. The blocking thread has a larger diameter than the guiding thread and the guiding portion is located closer to the inner bone plate surface than the blocking portion. | 03-04-2010 |
20090306661 | Clamping Element and Insert Therefor - An insert ( | 12-10-2009 |
20090264883 | Radiolucent orthopedic fixation plate - 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. | 10-22-2009 |
20090264882 | External fixation system - 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. | 10-22-2009 |
20090198292 | Wire fixation device - A wire fixation device for fixing a tensioned wire or a pin to a medical device has a wire post having a head portion with an opening having a predetermined longitudinal axis for reception of a wire or pin. The wire post has a neck portion for being in engagement with an opening of the medical device. A locking element is adapted to be introduced into opening having an opening with inclined sections that are inclined to the longitudinal axis. A clamping cone abuts on an abutment element. The clamping cone has a clamping opening to accommodate a wire and has inclined outer surfaces that are inclined to the longitudinal axis and which are encompassed with the conical section of the locking element. Upon an axial displacement of the locking element relative to the clamping cone a radial force is exerted onto the clamping cone leading to a reduction of the diameter of the clamping opening such that if a wire or a pin is received in the clamping opening a radial force results onto the wire or the pin. | 08-06-2009 |
20090198284 | Hybrid plate system and method - A bone plate system is disclosed which includes a bone plate having at least one plate hole, at least one pin adapted to be disposed in the at least one plate hole, and a polymer component disposed between the at least one pin and the bone plate. The polymer component includes a polymer that may be melted through the application of ultrasonic energy. The at least one pin is constructed of a material that will not melt under such application of ultrasonic energy. The re-solidified polymer component creates a bond between the at least one pin and the bone plate to provide a more rigid and secure mating therebetween, and to at least substantially prevent backout of the at least one pin with respect to the bone plate. A method of implanting the bone plate system is also disclosed. | 08-06-2009 |
20090198236 | Clamping pin - A clamping pin is intended to be inserted into and held in an opening of a medical device. The clamping pin comprises a screw having a longitudinal axis, a first clamping element having a surface inclined to the longitudinal axis and provides a first part of a clamping section. A second clamping element has a surface inclined to the longitudinal axis and provides a second part of the clamping section which is complementary to the opening in the medical device. The inclined surfaces of the first and second clamping elements are in contact. A screw extends at least partly through both the first and second clamping elements. The screw engages in one of the clamping elements such that the axial distance between the two clamping elements and the diameter of the clamping section that can come in contact with a surface of the opening in the medical device will be changed upon actuation of the screw. | 08-06-2009 |
20090198235 | Strut joint for an external fixator - A ball joint for use with an external fixator has a sleeve in engagement with a rod of a strut for the external fixator. A ring insert and a blocking element are provided, having a combined circumferential surface being able to be introduced into a hole of a ring of an external fixator. The ring insert and blocking element have complementary wedge surfaces allowing a relative radial displacement therebetween to enlarge the diameter of the combined circumferential surface for blocking the ball joint inside the hole. Additionally the sleeve comprises a spherical hollow ball portion with concentrical inner and outer spherical portions, wherein the outer spherical portion engages a complementary spherical socket of the blocking element and wherein the inner spherical portion is engaged by a ball nut. A connection element extends through the sleeve, blocking element and ring insert, wherein a radial displacement and axial displacement of the ring insert and blocking element are activated by the connection element. | 08-06-2009 |
20090198234 | Telescopic strut for an external fixator - A telescopic strut for use with an external fixator includes a tube and a rod, especially a threaded rod being in threaded engagement with the tube. The tube comprises at least one hole for accommodating a ball, the ball having the spherical shape for engagement with the threaded rod. A sleeve is provided on the portion of the tube comprising the hole. The sleeve comprises a non-spherical inner cross-section. The greater diameter of the sleeve has a dimension which is at least the sum of the outer diameter of the threaded rod plus the diameter of an accommodating ball for allowing direct axial movement of the threaded rod against the tube in such a rotational position of the sleeve. The lesser diameter has a dimension to place the ball within the threaded rod for allowing a rotational movement of the threaded rod against the tube. | 08-06-2009 |
20090148232 | External fixation clamp - 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. | 06-11-2009 |
20080269768 | Bone screw holding device - A screw holding device has a screw engaging part and a fixation sleeve. The screw for use with the screw holding device has a head and a shaft. The head of the bone screw has a recess and a notch. The screw engaging part has two halves with a hook formed on each half. The hook is shaped to fit in the notch. A fixation sleeve slides over the screw engaging part. When the fixation sleeve is pulled in proximal direction, the two halves of the screw engaging part are able to flex easily towards each other and thereby are insertable in the recess. When the fixation sleeve is moved towards the distal end of the screw engaging part, the two halves of the screw engaging part are prevented from flexing towards each other and thereby rigidly lock the screw and the screw engaging part together. | 10-30-2008 |
20080249573 | Bone Connection Device - An implantable orthopedic device having a load-bearing element, such as a bone plate, with at least one opening for a fixation element and one insert which can be inserted in an inclined opening in a receptacle in the bore. This insert has an external form that is at least partially complementary to the internal form of the receptacle and a central through-bore for receiving the body of the fixation element such as a bone screw. The insert also provides a locking system for holding the insert in the receptacle, in which the insert exhibits at least one locking mechanism with which conformal locking with the load-bearing element may be achieved. | 10-09-2008 |
20080215053 | Prevention of re-use of a medical device - A disposable medical device is especially an articulation for the relative positioning of fixation bars or of pins of an external fixator, having at least a clamping means to be introduced into the medical device, the clamping means comprises an element that alters its appearance when being heated over a threshold temperature, thus giving optical or mechanical information that the device should not be used a second time. | 09-04-2008 |