WO2009109371A2 - Dispositif permettant de cibler des trous de blocage dans des clous intramédullaires - Google Patents

Dispositif permettant de cibler des trous de blocage dans des clous intramédullaires Download PDF

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Publication number
WO2009109371A2
WO2009109371A2 PCT/EP2009/001530 EP2009001530W WO2009109371A2 WO 2009109371 A2 WO2009109371 A2 WO 2009109371A2 EP 2009001530 W EP2009001530 W EP 2009001530W WO 2009109371 A2 WO2009109371 A2 WO 2009109371A2
Authority
WO
WIPO (PCT)
Prior art keywords
marker
leg
targeting device
elongated member
intramedullary nail
Prior art date
Application number
PCT/EP2009/001530
Other languages
English (en)
Other versions
WO2009109371A3 (fr
Inventor
Bernard Clausen
Original Assignee
Sector 6 Technologies S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sector 6 Technologies S.A. filed Critical Sector 6 Technologies S.A.
Publication of WO2009109371A2 publication Critical patent/WO2009109371A2/fr
Publication of WO2009109371A3 publication Critical patent/WO2009109371A3/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1707—Guides or aligning means for drills, mills, pins or wires using electromagnetic effects, e.g. with magnet and external sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1725—Guides or aligning means for drills, mills, pins or wires for applying transverse screws or pins through intramedullary nails or pins

Definitions

  • This invention relates to a targeting device for aligning a drill guide with the spatial orientation of a locking hole in an intramedullary nail and, in particular, a system including such a targeting device.
  • a targeting device for aligning a drill guide with a hole in an intramedullary nail comprises an elongated member and a first marker.
  • the elongated member is supported such that a first end of the elongated member is free to move.
  • the first marker is arranged at the first end of the elongated member and magnetically interacts with a second marker inserted into the intramedullary nail.
  • a system comprises the targeting device, the second marker and, in particular, a frame having a first leg and a second leg, at least one joint, an attachment means and a drill guide.
  • the at least one joint couples the first leg to the second leg and allows the second leg to move relative to the first leg.
  • the attachment means is attached to the first leg of the frame and is used for attaching the frame to the intramedullary nail.
  • the second marker can be inserted into the intra- medullary nail and indicates the spatial orientation of the hole in the intramedullary nail.
  • the drill guide is attached to the second leg of the frame and can receive a drill.
  • the targeting device can be attached to the second leg of the frame and interacts with the second marker by means of magnetic interaction.
  • FIG. 1 schematically illustrates a system 100 in a disassembled state as an exemplary embodiment of the inven- tion.
  • FIGs. 2A and 2B schematically illustrate the system 100 during use.
  • FIG. 3 schematically illustrates a cross-section of an embodiment of a targeting device 12.
  • FIGs. 4A to 4D schematically illustrate cross-sections of embodiments of the targeting device 12 and an intramedul- lary nail 13.
  • FIGs. 5A and 5B schematically illustrate a further embodiment of the targeting device 12 in a three-dimensional view and cross-section.
  • FIGs. 6 and 7 schematically illustrate further embodiments of the targeting device 12 in a three-dimensional view.
  • FIG. 8 schematically illustrates a system 200 as a further exemplary embodiment of the invention.
  • Figs. 9A and 9B schematically illustrate the system 200 from different perspectives.
  • FIGs. 1OA and 1OB schematically illustrate a system 300 as a further exemplary embodiment of the invention from different perspectives.
  • FIG. 11 schematically illustrates the system 300 in a disassembled state.
  • FIG. 1 schematically illustrates, in a two-dimensional view, a system (or a device) 100 in a disassembled state as an exemplary embodiment of the invention.
  • the system 100 may include a frame 10, a marker 11 and a targeting device 12.
  • Fig. 1 shows an intramedullary nail 13 having a transverse hole 14.
  • the intramedullary nail 13 may or may not be part of the system 100.
  • the frame 10 may be essentially U- shaped and may include a first leg 15 and a second leg 16.
  • An attachment means 17 may be attached to the first leg 15 of the frame 10.
  • a drill guide 18 may be attached to the second leg 16 of the frame 10.
  • the second leg 16 may be coupled to the first leg 15 by means of at least one joint 19 allowing to move the second leg 16 relative to the first leg 15.
  • the system 100 is as illustrated in Fig. 2A.
  • the intramedullary nail 13 can be inserted into the medullary canal of a tubular bone 20 and the frame 10 can be detachably, coaxi- ally connected to the intramedullary nail 13.
  • the intramedullary nail 13 may have at its proximal end an attachment means 21 for the purpose of separable attachment to the attachment means 17 of the frame 10.
  • the intramedullary nail 13 may be commercially available, and the attachment means 17 of the frame 20 may be adapted for the con- nection with intramedullary nails 13 obtained from various suppliers.
  • the intramedullary nails 13 may have any suitable size and may be adapted for use in full or hollow bones of the left or right side of the human body or animals .
  • the transverse hole 14 of the intramedullary nail 13 may be positioned at the distal end of the intramedullary nail 13.
  • the intramedullary nail 13 may have a transverse hole 22 positioned at its proximal end.
  • the intramedullary nail 13 may have one or more further transverse holes, which may, for example, be positioned adjacent to the hole 14.
  • the purpose of the holes 14 and 22 is to secure the intramedullary nail 13 in place with one or more transversely extending screws. In order to achieve this result, a screw hole must be drilled in the bone 20 in direct alignment with each transverse hole 14, 22 in the intramedullary nail 13 after the intramedullary nail 13 has been inserted into the bone 20.
  • the drill should preferably pass cleanly through the transverse holes 14, 22 in the intramedullary nail 13, because otherwise it will produce metal chips and shavings from the intramedullary nail 13 which may impede healing and may also be a source of future discomfort or pain for the patient.
  • the intramedullary nail 13 is disposed inside the bone 20, it is not possible to directly see in particular the distal hole 14. Moreover, the intramedullary nail 13 may get deformed from the time when it is inserted into the bone 20.
  • the system 100 provides some arrangement to precisely and accurately align a surgical drill, which can be inserted into the drill guide 18, with the axis A of the distal hole 14 through the intramedullary nail 13.
  • the marker 11 which may be affixed to the distal end of an elongated member, for example a positioning rod or wand 23, is placed in the hollow intramedullary nail 13, for example in the distal hole 14 or in close proximity to the distal hole 14.
  • the marker 11 is designed such that it indicates the spatial Orientation of the hole 14 when inserted into the intramedullary nail 13.
  • the targeting mechanism for finding the position and spatial orientation (axis A) of the distal hole 14 may be based on magnetic interaction between the marker 11 and the targeting device 12 as described further below.
  • the marker 11 may be an integral part of the intramedullary nail 13. In this case the marker 11 may be placed aside to the distal hole 14.
  • the distal targeting technique of the system 100 employs the targeting device 12 which can be mounted on the second leg 16 of the frame 10.
  • the drill guide 18 may be implemented as a bushing in that either the targeting device 12 or the surgical drill may be inserted.
  • the drill guide 18 and the targeting device 12 may be designed such that after the targeting device 12 has been aligned with the marker 11, i.e. the axis A, the targeting device 12 can be replaced by the surgical drill and the surgical drill is precisely and accurately aligned with the distal hole 14, i.e. the axis A.
  • the bushing of the drill guide 18 is supported in a fixture that is mechanically attached to the second leg 16 of the frame 10.
  • the at least one joint 19 allows to move the second leg 16 relative to the first leg 15 of the frame 10 in order to align the targeting device 12 with the axis A of the distal hole 14. It may, for example, be possible that the second leg 16 can be moved in three dimensions (translatory and/or rotatory) .
  • the joint 19 may be implemented as a swivel joint, a prismatic joint, a screw joint, a ball joint, a sliding joint, a cardan joint, a revolute joint, a turning and sliding joint, an universal joint or any other suitable type of joint.
  • more than one joint may be arranged between the first leg 15 and the second leg 16 of the frame 10.
  • One or more locking means may be provided to lock the one or more joints 19 in order to prevent any movement of the second leg 16 relative to the first leg 15 after the targeting device 12 and thus the axis B of the drill guide 18 has been properly oriented with respect to the distal hole 14.
  • the system 100 may be moved without losing the alignment of the axes A and B.
  • the marker 11 can then be removed from the intramedullary nail 13 by pulling out the positioning rod 23 and a conventional surgical drill can be inserted into the bushing of the drill guide 18 so that a hole through the bone 20 may be drilled.
  • the targeting device 12 is not inserted into the drill guide 18 but is mounted to the second leg 16 adjacent to the drill guide 18.
  • the marker 11 is placed in the intramedullary nail 13 such that it indicates the spatial orientation of the distal hole 14 and has the same offset from the distal hole 14 than the offset of the targeting device 12 from the drill guide 18.
  • the drill guide 18 is aligned with the axis A of the distal hole 14.
  • FIG. 3 schematically illustrates, in a two-dimensional view, an embodiment of the targeting device 12.
  • the targeting device 12 includes an elongated member 26 having a first end 60 and a second end 61 opposite to the first end 60.
  • the elongated member 26 is supported or suspended such that the first end 60 of the elongated member 26 is free to move or to swing or to rotate to a certain degree in one or two or three dimensions.
  • the elongated member 26 may, for example, be sup- ported such that it moves or swings or rotates around a point 70 of rotation.
  • a first marker 28 is arranged at the first end 60 of the elongated member 26.
  • the first marker 28 magnetically interacts with the second marker 11 inserted into the intramedullary nail 13.
  • the targeting device 12 may con- tain a housing 25 accommodating the elongated member 26.
  • the targeting device 12 illustrated in Fig. 3 and all other embodiments of the targeting device 12 described herein may be used in connection with the system 100 or the systems 200 and 300 described below. However, the targeting device 12 described herein may also be used together with a system for aligning a drill guide with a hole in an intramedullary nail that is different from the systems described herein. For example, the targeting device 12 may be part of a system where the drill guide 18 is not mechanically coupled to the intramedullary nail 13.
  • both markers 11 and 28 are made of permanent magnets, such as a hard-magnetic material.
  • one of the markers 11 and 28 may be made of a permanent magnet and the other one of the markers 11 and 28 may be made of a soft-magnetic material, such as a ferromag- netic material.
  • Components adjacent to the markers 11 and 28, such as the housing 25 and the intramedullary nail 13, may be made of non-magnetic material.
  • FIGs. 4A and 4B there is shown, to an enlarged scale and in cross-section, the distal end of the intramedullary nail 13, illustrating the distal transverse hole 14 and its axis A which are to be targeted.
  • Figs. 4A and 4B further show embodiments of the targeting ⁇ device 10 and the marker 11.
  • both markers 11 and 28 are permanent magnets.
  • the permanent magnet 11 may be polarized along an axis which is arranged orthogonal to the main axis of intramedullary nail 13, and the permanent magnet 28 may be polarized along an axis which is arranged parallel to the elongated member 26.
  • lines 24 of constant flux density generated by the permanent magnets 11 and 28 are shown.
  • the permanent magnet 11 is placed in the distal hole 14 such that its magnetic field indicates the spatial orientation of the distal hole 14.
  • the housing 25 of the targeting device 12 is a tube 25, which may have a varying diameter adapted to fit into the bushing of the drill guide 18.
  • the elongated member 26 is embod- ied as a rod 26.
  • the elongated member 26 may be a wire or a tube or may have any other appropriate shape.
  • the rod 26 is supported in the tube 25 such that the rod 26 is free to swing to a certain angle in the tube 25.
  • the rod 26 may be suspended on a foil 27, for example a latex foil, which is fastened to the wall of the tube 25.
  • the rod 26 may be suspended from one or two or more intermingled rings, a tube, a membrane, a plate, a rod or a cardan joint as described further below.
  • the permanent magnet 28 is attached to the first end 60 of the rod 26.
  • An indicating means 29, for example a small sphere, may be affixed to the second end 61 of the rod 26.
  • a display screen 30 at one end of the tube 25 indicates the po- sition of the indicating means 29.
  • the display screen 30 is also illustrated in Figs. 4A and 4B in top view.
  • the display screen 30 may be made from glass or any transparent plastics.
  • Reference lines 31 may be centred in the display screen 30 and indicate the position of the axis B.
  • FIG. 4A Two positions of the targeting device 12 relative to the axis A of the distal hole 14 are shown in Figs. 4A and 4B to illustrate the visually aided targeting procedure.
  • the position of the indicating means 29 on the display screen 30 indicates that the axis B of the targeting device 12 is not aligned with the axis A.
  • the indicating means 29 is moved around on the display screen 30, in a manner that indicates the correction to be made in translational position and angular orientation in order to bring about the desired drill alignment.
  • Fig. 4A the position of the indicating means 29 on the display screen 30 indicates that the axis B of the targeting device 12 is not aligned with the axis A.
  • the indicating means 29 is moved around on the display screen 30, in a manner that indicates the correction to be made in translational position and angular orientation in order to bring about the desired drill alignment.
  • the targeting device 12 has been moved, in translation with some simultaneous angular modification, to achieve the desired centring of the indicating means 29 on the display screen 30 at the intersection of the reference lines 31.
  • the axes A and B are aligned and thus the bushing of the drill guide 18 is accurately aligned with the distal hole 14.
  • FIGs. 4C and 4D the distal end of the intramedullary nail 13 and the targeting device 12 are shown with different orientations of the permanent magnets 11 and 28 than in Figs. 4A and 4B.
  • both permanent magnets 11 and 28 are oriented such that their magnetic poles are arranged on the same line when the targeting device 12 is properly aligned with the intramedullary nail 13 as shown in Fig. 4B.
  • the permanent magnet 28 is oriented orthogonal to the rod 26, and the permanent magnet 11 is ori- ented parallel to the rod 23. Other orientations of the permanent magnets 11 and 28 are possible as well.
  • any other appropriate targeting device 12 may be used for the system 100 and also the systems 200 and 300 described further below.
  • the targeting device 12 may, for ex- ample, be an electronic device including one or more magnetic field sensors, such as Hall sensors, to detect the orientation of the magnetic field of the permanent magnet 11.
  • the alignment of the second leg 16 with the hole posi- tion in the bone may be achieved by the use of any type of emitter placed at the bottom of the intramedullary nail 13 together with any type of receiver capable of recognizing the direction of the source signal sent by the emitter.
  • Emitters comprise, but are not limited to, any type of electro- magnetic and radioactive sources.
  • Figs. 4A to 4D show the use of magnets as both emitter and receiver. In these figures the position of the second leg 16 is set by the alignment of the receiver magnet caused by the torque imposed by the magnetic field of the emitter magnet.
  • FIGs. 5 to 7 schematically illustrated further embodiments of the targeting device 12.
  • the sphere 62 is held by two membranes 63 and 64, which are attached to opposite sides of a plate 65.
  • the plate 65 has an opening in which the sphere 62 is placed and is attached to the housing 25 (only a portion of the housing 25 is shown in Figs. 5 to 7) .
  • Both membranes 63 and 64 have open- ings for the rod 26.
  • the centre of the sphere 62 is the point 70 of rotation.
  • the targeting devices 12 illustrated in Figs. 6 and 7 include cardan joints.
  • the rod 26 is firmly at- tached to a rod 66, which is pivot-mounted to the housing 25 such that the rod 26 is allowed to swing in one plane.
  • the rod 66 is pivot-mounted to a ring 67.
  • Two rods 68 and 69 are firmly attached to the ring 67, and the rods 68 and 69 are pivot-mounted to the housing 25 which allows the rod 26 to swing in more than one plane.
  • FIG. 8 schematically illustrates, in a three- dimensional view, a system (or a device) 200 which is an implementation of the system 100 described above.
  • the features of the system 200 that are described below can therefore be likewise applied to the system 100.
  • the system 200 includes components similar or identical to the components of the system 100. Therefore similar or identical components of the systems 100 and 200 are denoted by the same reference numerals .
  • the system 200 includes a frame 10 having a first leg 15 and a second leg 16 consisting of two parts (rods) 161 and 162, an attachment means 17, a drill guide 18 and a targeting device 12.
  • Fig. 8 further shows an intramedullary nail 13 attached to the first leg 15 of the frame 10 and a permanent magnet 11 attached to one end of an elongated member, for example a positioning rod 23.
  • a locking means 31 may be affixed to the other end of the positioning rod 23 which allows to lock the positioning rod 23 and thus the permanent magnet 11 to the frame 10.
  • the system 200 includes joints 32, 33, 34 and 35 which couple the second leg 16 to the first leg 15 and which are implementations of the at least- one joint 19 of the system 100.
  • the part 161 of the second leg 16 is a longitudinal bar which is fitted into the joint 32 which may be a bushing allowing the part 161 of the second leg 16 to slide longitudinally in a direction C.
  • the joint 33 allows the bushing 32 to rotate around an axis D to a certain degree.
  • the joint 33 may also.be omitted.
  • the joints 34 and 35 are swivel joints and enable rotations around axes E and F, respectively.
  • Each of the joints 32 to 35 may have locking means, which are not shown in Fig. 8 and which can be used to fix the positions of the joints 32 to 35.
  • the joint 35 may be replaced by another drill guide (not shown) in order to drill a hole through the transverse hole 22.
  • FIGs. 9A and 9B schematically illustrate the system 200 in a two-dimensional top view and side view, respec- tively.
  • Fig. 9A shows the translatory axis C and the rotatory axes D, E and F
  • Fig. 9B shows the axes C, E and F.
  • rotation angles ⁇ , ⁇ and ⁇ are shown in Figs. 8 and 9A indicating possible rotations around the axes D, E and F, respectively.
  • Figs. 1OA and 1OB schematically illustrate, in different three-dimensional views, a system (or a device) 300 which is an implementation of the system 200 described above.
  • the system 300 includes components similar or identical to the components of the system 200. Therefore similar or identical components of the systems 200 and 300 are denoted by the same reference numerals.
  • the parts 161 and 162 of the second leg 16 of the system 300 are attached to each other by means of a ball joint 40 (or ball-and-socket joint), which allows to move the part 161 of the second leg 16 in three dimensions relative to the part 162 and the frame 10 to which the second part 162 is attached.
  • the position of the part 161 of the second leg 16 may be locked by a screw 41.
  • the part 161 of the second leg 16 can slide longitudinally in the direction C.
  • the position of the rod 161 may be locked by a locking mechanism 55.
  • the locking mechanism 55 may, for example, be embodied to lock the position of the rod 161 by applying pressure on the rod 161.
  • the part 162 of the second leg 16 may be able to rotate around the axis F.
  • the position of the rod 162 can be locked by means of the screw 45.
  • the drill guide 18 of the system 300 includes two bushings 42 and 43.
  • the purpose of the bushing 42 is to receive either the targeting device 12 (not illustrated in Figs. 1OA and 10B) or the surgical drill to drill through the distal hole 14.
  • the bushing 43 is associated with a further hole 44 which is positioned at the distal end of the intrame- dullary nail 13. If the bushing 42 is aligned with the distal hole 14, the bushing 43 is aligned with the hole 44.
  • a surgical drill can be inserted in the bushing 43 to drill through the hole 44 in the intramedullary nail 13.
  • the hole 44 has an elongated opening to allow dy- namic locking of the locking screw which is to be inserted into the hole 44. Under dynamic locking, the locking screw is movably secured to the intramedullary nail 13 which may promote the healing over time of the fractured bone.
  • the drill guide 18 may, for example, be made of one piece and may include further bushings which are associated with further holes in the intramedullary nail 13.
  • Fig. 11 schematically illustrates the system 300 in a disassembled state.
  • the system 300 includes a first leg 46 which may be attached to the frame 10 instead of the first leg 15.
  • the first leg 46 may have a different adapter to allow the use of other types of intramedullary nails.
  • an end 47 of the part 162 of the second leg 16 may be adapted to be mounted to an end 48 of the frame 10.
  • the system 300 may further include a drill guide 49, which can be mounted with its end 50 to the frame 10, in order to drill through the hole 22 and possibly further holes positioned at the proximal end of the intramedullary nail 13.
  • the system 300 may additionally include tubular drill guides 51 and 52 which may be inserted into the bushings of the drill guides 18 and 49.
  • the drill guide 18 is attached to a rod 53, which can be inserted into the rod 161. The purpose is to lock the position of the changeable and detachable drill guide 18.
  • the drill guide 18 may be different for different types of intramedullary nails and thus can be replaced if the type of intramedullary nail is changed.
  • the system 300 may additionally include a rod 54 with end sizes that can pass through the holes 14, 22 in the intramedullary nail 13.
  • the rod 54 is used in the very first step, i.e. when the intramedullary nail 13 is attached to the frame 10 and before the intramedullary nail 13 is inserted into the fractured bone.
  • the rod 54 is passed through the bushing 42 using the sleeve 52 of the drill guide and let it pass through the distal hole 14. Then all locking means of the system 300 are locked and the intramedullary nail 13 can be inserted into the bone .
  • the systems 100, 200 and 300 have significant advantages over existing devices, including the following. They do not necessarily require electronic equipment, they do not risk the patient's complete health, they do not require additional assistance, they allow saving time and freeing up op- erating rooms, they are applicable to all long bones, full or hollow, and no X-ray imaging is needed for targeting the spatial position of the distal hole in the intramedullary nail. Moreover, the systems 100, 200 and 300 allow the surgeon to use intramedullary nails from various suppliers or low cost intramedullary nails for poor populations.
  • embodiments of the invention may be implemented in discrete circuits, partially integrated circuits or fully integrated circuits or programming means.
  • the term "exemplary” is merely meant as an example, rather than the best or optimal. It is also to be appreciated that features and/or elements depicted herein are illustrated with particu- lar dimensions relative to one another for purposes of simplicity and ease of understanding, and that actual dimensions may differ substantially from that illustrated herein.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Surgical Instruments (AREA)

Abstract

La présente invention concerne un dispositif de ciblage (12) destiné à aligner un guide-foret (18) sur un trou (14) dans un clou intramédullaire (13). Ledit dispositif de ciblage (12) comprend un élément allongé (26) qui présente une première extrémité (60), ledit élément allongé (26) étant soutenu de telle sorte que la première extrémité (60) dudit élément (26) soit libre de se déplacer ; et une première balise (28) disposée à la première extrémité (60) de l’élément allongé (26), ladite première balise (28) exerçant une interaction magnétique avec une seconde balise (11) insérée dans le clou intramédullaire (13).
PCT/EP2009/001530 2008-03-04 2009-03-04 Dispositif permettant de cibler des trous de blocage dans des clous intramédullaires WO2009109371A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IBPCT/IB2008/050783 2008-03-04
IB2008050783 2008-03-04
EP2009000916 2009-02-10
EPPCT/EP2009/000916 2009-02-10

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WO2009109371A2 true WO2009109371A2 (fr) 2009-09-11
WO2009109371A3 WO2009109371A3 (fr) 2010-05-20

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011050842A1 (fr) * 2009-10-28 2011-05-05 CHIRMAT Sàrl Dispositif pour le positionnement et le reglage d'un axe de visee
WO2012102901A1 (fr) * 2011-01-28 2012-08-02 Synthes Usa, Llc Dispositif d'alignement destiné à un ciblage distal
CN103070715A (zh) * 2013-01-22 2013-05-01 孙德修 带锁髓内钉远端钉孔瞄准监控仪
WO2013017833A3 (fr) * 2011-07-29 2013-11-07 Intelligent Orthopaedics Limited Guide pour ciblage chirurgical
EP2744430A2 (fr) * 2011-08-15 2014-06-25 Amei Technologies, Inc. Ensemble de ciblage pour un système de clou à compression
IT202000013276A1 (it) * 2020-06-04 2021-12-04 I R I De Intelligence Radioactive And Integrated Devices Sagl Dispositivo di ausilio per operazioni chirurgiche
US11653937B2 (en) 2020-01-28 2023-05-23 Mason James Bettenga Systems and methods for aligning surgical devices
WO2023118562A1 (fr) * 2021-12-23 2023-06-29 Orthofix S.R.L. Dispositif de transport osseux à câble orthopédique et système de transport osseux comprenant ledit dispositif
WO2024133885A1 (fr) * 2022-12-23 2024-06-27 Orthofix S.R.L. Dispositif de transport osseux par câble orthopédique et système de transport osseux comprenant ce dispositif

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4865025A (en) * 1984-12-26 1989-09-12 Carlo Buzzi Drill guide aiming device for medullary rods
US5049151A (en) * 1989-12-20 1991-09-17 Durham Alfred A Magnetic positioner arrangement for locking screws for orthopedic hardward
US5514145A (en) * 1994-05-04 1996-05-07 Durham; Alfred A. Magnetic positioner arrangement for locking screws for orthopedic hardware
DE19640474A1 (de) * 1996-09-30 1998-04-09 Matthias Wolter Vorrichtung zum Auffinden von Verriegelungsbohrungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4865025A (en) * 1984-12-26 1989-09-12 Carlo Buzzi Drill guide aiming device for medullary rods
US5049151A (en) * 1989-12-20 1991-09-17 Durham Alfred A Magnetic positioner arrangement for locking screws for orthopedic hardward
US5514145A (en) * 1994-05-04 1996-05-07 Durham; Alfred A. Magnetic positioner arrangement for locking screws for orthopedic hardware
DE19640474A1 (de) * 1996-09-30 1998-04-09 Matthias Wolter Vorrichtung zum Auffinden von Verriegelungsbohrungen

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011050842A1 (fr) * 2009-10-28 2011-05-05 CHIRMAT Sàrl Dispositif pour le positionnement et le reglage d'un axe de visee
US8628538B2 (en) 2009-10-28 2014-01-14 Chirmat Sa Device for positioning and adjusting a viewing axis
WO2012102901A1 (fr) * 2011-01-28 2012-08-02 Synthes Usa, Llc Dispositif d'alignement destiné à un ciblage distal
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