WO2002098330A2 - Device for the proximal locking of a femoral nail - Google Patents

Device for the proximal locking of a femoral nail Download PDF

Info

Publication number
WO2002098330A2
WO2002098330A2 PCT/EP2002/005235 EP0205235W WO02098330A2 WO 2002098330 A2 WO2002098330 A2 WO 2002098330A2 EP 0205235 W EP0205235 W EP 0205235W WO 02098330 A2 WO02098330 A2 WO 02098330A2
Authority
WO
WIPO (PCT)
Prior art keywords
bell
transcervical
nail
longitudinal element
pin
Prior art date
Application number
PCT/EP2002/005235
Other languages
French (fr)
Other versions
WO2002098330A3 (en
Inventor
Roberto Maria Hofmann
Original Assignee
Hofmann S.R.L.
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 Hofmann S.R.L. filed Critical Hofmann S.R.L.
Priority to AU2002314058A priority Critical patent/AU2002314058A1/en
Priority to EP02740589A priority patent/EP1401344A2/en
Publication of WO2002098330A2 publication Critical patent/WO2002098330A2/en
Publication of WO2002098330A3 publication Critical patent/WO2002098330A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/74—Devices for the head or neck or trochanter of the femur
    • A61B17/742—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
    • A61B17/744—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck the longitudinal elements coupled to an intramedullary nail

Definitions

  • the present invention relates to a device for locking an intrameduUary nail for osteosynthesis of fractures in the trochanteric region of the femur.
  • IntrameduUary nails such as those of interest according to the present invention are for example described in DE-A-2854334 and EP- 257118.
  • one of the main problems in this kind of implant consists of the stability together with capacity of the osteosynthesis means to adapt to the evolution of the fracture site.
  • the fracture fissures in the trochanteric region of the femur, in particular the neck of the femur, once the implant has been performed must be able to be suitably compressed under the effect of the static or dynamic load, in a controlled manner within and not beyond predetermined critical values.
  • the present invention proposes a device for the proximal locking of an intrameduUary nail for osteosynthesis of fractures in the trochanteric region of the femur, said nail being provided with a transverse through-hole, characterized in that it comprises a transcervical longitudinal element self-threading at one end for fixing to the head of the femur and provided at the other end with an opening for receiving an insertion instrument which performs a translational movement thereof inside a bell which can be stably positioned inside said transverse hole of said nail, during said translation a rotation of said transcervical longitudinal element inside said bell being prevented, said translation being able to occur between two opposite stop positions, at least one of which is determined by the bearing contact of a pin which extends integrally from the internal surface of said bell into a slot formed on the surface of said transcervical longitudinal element.
  • Figures 1 , 2 and 3 show corresponding cross-sectional schematic views of a device according to the invention applied to an intrameduUary nail in a corresponding number of different operating positions;
  • Figure 4 shows a sectional view of the device only along the line IV-
  • Fig. 5 shows a sectional view, similar to that of Fig. 4, of a variant of the device according to the invention
  • Fig. 6 shows a sectional schematic view, similar to that of Fig. 1 , of a further variant of the device.
  • a device 10 comprises a self-threading, transcervical, longitudinal (relative to the vertical axis of the device) element 11 , with a wide threading at the end 12 for fixing to the head of the femur.
  • the element 11 In an intermediate zone of its external surface the element
  • Said element 11 has a slot 9.
  • Said element 11 has - in accordance with the embodiment shown by way of example in Figs. 1 , 2 and 3 - a cylindrical mixtilinear cross-section cut by a pair of planes, as shown in Fig. 4, but may equally have a different cross-section with edges, for example a square or hexagonal cross-section as shown in the variant of Fig. 5, thus preventing in any case its rotation inside the element which receives it, the internal surface of latter being in fact shaped in a matching manner, as can be seen in Figs. 4 and 5.
  • Said element consists of a bell 15, the cross-section of which is narrower at 17 at the opposite end to the threaded end 12 of the transcervical element 11 which it contains, this narrowed section 17 thus forming an stop stop for the transcervical element 11 which is free to move inside the bell.
  • an opening 13 with a narrowed cross-section for receiving an insertion instrument, of which in Figs. 1 and 2 for the sake of brevity only the end 14 having a shape matching the opening 13 is shown.
  • the external surface of the bell is tapered at 16, while in an intermediate position 18 it is threaded or corrugated or knurled with a series of recesses and/or projections.
  • a pin 8 extends integrally from the internal surface of said bell so as to engage with said slot.
  • the element 11 is thus able to translate without rotation inside the bell 15 between two opposite stop positions defined in the example of Figs. 1-3 by the bearing contact of the pin 8 against the opposite edges of the slot 9.
  • All the components described are made of biocompatible materials, for example stainless steel.
  • said device 10 comprising the bell 15 and the transcervical longitudinal element 11 is inserted inside a transverse through-hole 19 of an intrameduUary nail 20 for osteosynthesis of fractures in the trochanteric region of the femur, using the surgical technique normally adopted for this kind of femoral nail.
  • the nail in question has a cavity 21 along its longitudinal axis, which is threaded at 25 at the top with respect to the said transverse through-hole 19, for receiving a means 22 for clamping the device 10, for example a threaded pin terminating at the bottom in a frustoconical/cylindrical section 23 which creates with its edge a notch able to interfere with the said threading 18 formed on the external surface of the bell 15 so as to lock it on the intrameduUary nail 20.
  • a means 22 for clamping the device 10 for example a threaded pin terminating at the bottom in a frustoconical/cylindrical section 23 which creates with its edge a notch able to interfere with the said threading 18 formed on the external surface of the bell 15 so as to lock it on the intrameduUary nail 20.
  • the device 10 is introduced into the transcervical channel, for example by means of a positioning cannula, passing through the transverse hole 19 of the nail as shown in Fig. 1.
  • the element 11 is displaced inside the bell 10 until the pin 8 makes bearing contact against the edge of the slot 9 in the position again shown in Fig. 1.
  • the end of the element 11 is located at the maximum distance from the stop represented by the section 17 of the bell.
  • the distance indicated by 24 represents the maximum working stroke which the transcervical element 11 is able to perform under compression, for example as a result of the static or dynamic load exerted on the femur of the patient in whom the nail has been implanted, and therefore on the fissures of the fracture.
  • Fig. 3 shows the other limit position of displacement of the element 11 inside the bell as far as the stop position represented by the bearing contact of the end of 11 against the section 17 of the bell, corresponding in the example shown to the bearing contact of the other end of the slot 9 against the pin 8.
  • the situation shown in Fig. 3 therefore represents the situation of maximum compression permitted on the fracture fissures by the device according to the invention.
  • a means for example a spring 26, for opposing the pressure exerted by the static or dynamic load on the fracture fissures, thus acting as a damping device, has been arranged between the bottom end of the element 11 and the narrowed section 17 which acts as the base of the bell 15.
  • a rigid means for preventing or limiting the compression stroke such as for example a screw or a stopper or a plug. This may be appropriate in certain clinical cases where it is not desired to use the whole compression (working stroke 24 shown in Fig. 2) made available by the device according to the invention.
  • the characteristic feature of preventing rotation between the transcervical element and bell may be provided solely by the same pin of the bell which engages with the slot of the transcervical element and not by the particular anti-rotational geometry of their sections.
  • the cross-section of the displaceable transcervical element/bell pair will therefore be circular.
  • the same pin/slot pair could moreover provide itself both the opposite stop positions described above without using narrowed sections of the bell acting as a stop surface for the base of the transcervical element.

Abstract

The present invention relates to a device for the proximal locking of an intramedullary nail for osteosynthesis of fractures in the trochanteric region of the femur, said nail being provided with a transverse through-hole, characterized in that it comprises a transcervical longitudinal element self-threading at one end for fixing to the head of the femur and provided at the other end with an opening for receiving an insertion instrument which performs a translational movement thereof within a bell which can be stably positioned inside said transverse hole of said nail, during said translation a rotation of said transcervical longitudinal element inside said bell being prevented, said translation being able to occur between two opposite stop positions, at least one of which is determined by the bearing contact of a pin which extends integrally from said bell into a slot formed in the surface of said transcervical longitudinal element.

Description

"Device for the proximal locking of a femoral nail
* * * * * * * *
The present invention relates to a device for locking an intrameduUary nail for osteosynthesis of fractures in the trochanteric region of the femur.
IntrameduUary nails such as those of interest according to the present invention are for example described in DE-A-2854334 and EP- 257118.
As is known, one of the main problems in this kind of implant consists of the stability together with capacity of the osteosynthesis means to adapt to the evolution of the fracture site. In particular, according to the objects of the present invention, the fracture fissures in the trochanteric region of the femur, in particular the neck of the femur, once the implant has been performed, must be able to be suitably compressed under the effect of the static or dynamic load, in a controlled manner within and not beyond predetermined critical values.
In order to achieve this object, the present invention proposes a device for the proximal locking of an intrameduUary nail for osteosynthesis of fractures in the trochanteric region of the femur, said nail being provided with a transverse through-hole, characterized in that it comprises a transcervical longitudinal element self-threading at one end for fixing to the head of the femur and provided at the other end with an opening for receiving an insertion instrument which performs a translational movement thereof inside a bell which can be stably positioned inside said transverse hole of said nail, during said translation a rotation of said transcervical longitudinal element inside said bell being prevented, said translation being able to occur between two opposite stop positions, at least one of which is determined by the bearing contact of a pin which extends integrally from the internal surface of said bell into a slot formed on the surface of said transcervical longitudinal element.
In order to understand better characteristic features and advantages of the invention, examples of practical embodiment thereof are described with reference to the figures of the accompanying drawings. These examples are not limiting, but merely illustrate the invention.
Figures 1 , 2 and 3 show corresponding cross-sectional schematic views of a device according to the invention applied to an intrameduUary nail in a corresponding number of different operating positions; Figure 4 shows a sectional view of the device only along the line IV-
IV of Fig. 1 ;
Fig. 5 shows a sectional view, similar to that of Fig. 4, of a variant of the device according to the invention;
Fig. 6 shows a sectional schematic view, similar to that of Fig. 1 , of a further variant of the device.
With reference in particular to Figs. 1 , 2 and 3 of these drawings, a device 10 according to the invention comprises a self-threading, transcervical, longitudinal (relative to the vertical axis of the device) element 11 , with a wide threading at the end 12 for fixing to the head of the femur. In an intermediate zone of its external surface the element
11 has a slot 9. Said element 11 has - in accordance with the embodiment shown by way of example in Figs. 1 , 2 and 3 - a cylindrical mixtilinear cross-section cut by a pair of planes, as shown in Fig. 4, but may equally have a different cross-section with edges, for example a square or hexagonal cross-section as shown in the variant of Fig. 5, thus preventing in any case its rotation inside the element which receives it, the internal surface of latter being in fact shaped in a matching manner, as can be seen in Figs. 4 and 5. Said element consists of a bell 15, the cross-section of which is narrower at 17 at the opposite end to the threaded end 12 of the transcervical element 11 which it contains, this narrowed section 17 thus forming an stop stop for the transcervical element 11 which is free to move inside the bell. At the end of the bell there is thus defined an opening 13 with a narrowed cross-section for receiving an insertion instrument, of which in Figs. 1 and 2 for the sake of brevity only the end 14 having a shape matching the opening 13 is shown. At the opposite end the external surface of the bell is tapered at 16, while in an intermediate position 18 it is threaded or corrugated or knurled with a series of recesses and/or projections. Opposite and in the direction of the slot 9 formed in the element 11 , a pin 8 extends integrally from the internal surface of said bell so as to engage with said slot. The element 11 is thus able to translate without rotation inside the bell 15 between two opposite stop positions defined in the example of Figs. 1-3 by the bearing contact of the pin 8 against the opposite edges of the slot 9. All the components described are made of biocompatible materials, for example stainless steel.
Operationally speaking, said device 10 comprising the bell 15 and the transcervical longitudinal element 11 is inserted inside a transverse through-hole 19 of an intrameduUary nail 20 for osteosynthesis of fractures in the trochanteric region of the femur, using the surgical technique normally adopted for this kind of femoral nail. The nail in question, of the kind described for example in the abovementioned patents, has a cavity 21 along its longitudinal axis, which is threaded at 25 at the top with respect to the said transverse through-hole 19, for receiving a means 22 for clamping the device 10, for example a threaded pin terminating at the bottom in a frustoconical/cylindrical section 23 which creates with its edge a notch able to interfere with the said threading 18 formed on the external surface of the bell 15 so as to lock it on the intrameduUary nail 20. In short, once the nail 20 has been introduced into the medullar cavity of the femur, the device 10 is introduced into the transcervical channel, for example by means of a positioning cannula, passing through the transverse hole 19 of the nail as shown in Fig. 1. By operating the insertion device 14, the element 11 is displaced inside the bell 10 until the pin 8 makes bearing contact against the edge of the slot 9 in the position again shown in Fig. 1.
In this position, the end of the element 11 is located at the maximum distance from the stop represented by the section 17 of the bell. Once the instrument 14 has been removed, the device 10 is locked inside the nail 20 by bringing the threaded locking pin 22/23 into contact with the threading 18 of the bell, as shown in Fig. 2. In this position shown in
Fig. 2, the distance indicated by 24 represents the maximum working stroke which the transcervical element 11 is able to perform under compression, for example as a result of the static or dynamic load exerted on the femur of the patient in whom the nail has been implanted, and therefore on the fissures of the fracture.
Fig. 3 shows the other limit position of displacement of the element 11 inside the bell as far as the stop position represented by the bearing contact of the end of 11 against the section 17 of the bell, corresponding in the example shown to the bearing contact of the other end of the slot 9 against the pin 8. The situation shown in Fig. 3 therefore represents the situation of maximum compression permitted on the fracture fissures by the device according to the invention.
In the variant shown in Fig. 6, a means, for example a spring 26, for opposing the pressure exerted by the static or dynamic load on the fracture fissures, thus acting as a damping device, has been arranged between the bottom end of the element 11 and the narrowed section 17 which acts as the base of the bell 15.
Alternatively, it is possible to arrange, in place of a damping means, a rigid means for preventing or limiting the compression stroke, such as for example a screw or a stopper or a plug. This may be appropriate in certain clinical cases where it is not desired to use the whole compression (working stroke 24 shown in Fig. 2) made available by the device according to the invention.
Numerous variations may be made to the device according to the invention with respect to that shown by way of example in the accompanying drawings. For example, the characteristic feature of preventing rotation between the transcervical element and bell may be provided solely by the same pin of the bell which engages with the slot of the transcervical element and not by the particular anti-rotational geometry of their sections.
In this variant, the cross-section of the displaceable transcervical element/bell pair will therefore be circular.
In a further variant, the same pin/slot pair could moreover provide itself both the opposite stop positions described above without using narrowed sections of the bell acting as a stop surface for the base of the transcervical element.

Claims

CLAIMS 1 ) Device for the proximal locking of an intrameduUary nail for osteosynthesis of fractures in the trochanteric region of the femur, said nail being provided with a transverse through-hole, characterized in that it comprises a transcervical longitudinal element self-threading at one end for fixing to the head of the femur and provided at the other end with an opening for receiving an insertion instrument which performs a translational movement thereof within a bell which can be stably positioned inside said transverse hole of said nail, during said translation a rotation of said transcervical longitudinal element inside said bell being prevented, said translation being able to occur between two opposite stop positions, at least one of which is determined by the bearing contact of a pin which extends integrally from said bell into a slot formed in the surface of said transcervical longitudinal element. 2) Device according to Claim 1 , characterized in that both said two stop positions are determined by the bearing contact of said pin against the opposite edges of said slot.
3) Device according to Claim 1 , characterized in that the other of said two stop positions is determined by the bearing contact of the bottom end of said self-threading, transcervical, longitudinal element against a narrowed section formed inside said bell.
4) Device according to Claim 1 , characterized in that the external surface of said bell is threaded or corrugated or knurled with a series of recesses and/or projections suitable for engagement by means of interference with a clamping means, such as a threaded pin, which can be screwed axially inside intrameduUary nail, thus performing locking of said bell inside said transverse through-hole.
5) Device according to Claim 3, characterized in that a means for opposing the static or dynamic load is arranged between said bottom end of the self-threading transcervical longitudinal element and the said narrowed section which acts as a base of the bell.
6) Device according to Claim 5, characterized in that said means is resilient, such as a spring.
7) Device according to Claim 5, characterized in that said means is rigid.
8) Device according to Claim 1 , characterized in that said rotation of said transcervical longitudinal element inside said bell is prevented as a result of interference between said pin and said slot.
9) Device according to Claim 1 , characterized in that said rotation of said transcervical longitudinal element inside said bell is prevented a result of the geometry of the cross-section of said transcervical longitudinal element.
10) Device as substantially described above and shown in the figures of the accompanying drawings. 11 ) IntrameduUary nail for osteosynthesis of fractures in the trochanteric region of the femur, combined with a device according to any one of the preceding claims.
12) Nail according to Claim 11 , characterized in that it comprises a threaded pin which can be screwed axially inside said nail and which terminates at the bottom in a frustoconical/cylindrical section which creates with its edge a notch able to interfere with the said threading formed on the external surface of the bell so as to lock it on the intrameduUary nail.
PCT/EP2002/005235 2001-06-04 2002-05-13 Device for the proximal locking of a femoral nail WO2002098330A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002314058A AU2002314058A1 (en) 2001-06-04 2002-05-13 Device for the proximal locking of a femoral nail
EP02740589A EP1401344A2 (en) 2001-06-04 2002-05-13 Device for the proximal locking of a femoral nail

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2001A001175 2001-06-04
IT2001MI001175A ITMI20011175A1 (en) 2001-06-04 2001-06-04 PROXIMAL LOCKING DEVICE FOR A FEMORAL NAIL

Publications (2)

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WO2002098330A2 true WO2002098330A2 (en) 2002-12-12
WO2002098330A3 WO2002098330A3 (en) 2003-04-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/005235 WO2002098330A2 (en) 2001-06-04 2002-05-13 Device for the proximal locking of a femoral nail

Country Status (4)

Country Link
EP (1) EP1401344A2 (en)
AU (1) AU2002314058A1 (en)
IT (1) ITMI20011175A1 (en)
WO (1) WO2002098330A2 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1547534A2 (en) * 2003-12-25 2005-06-29 Homs Engineering Inc. Intramedullary nail
DE102005039854A1 (en) * 2005-08-23 2007-03-01 Königsee Implantate und Instrumente zur Osteosynthese GmbH Proximal femur nail for stabilization of pertrochanteric fracture, has locking pin enabling rotational locking of support screw, which abuts against part of pin so that relative movement is produced between neck of screw and femur nail
WO2008064059A2 (en) * 2006-11-17 2008-05-29 Synthes(U.S.A.) Sliding hip helical implant
US7956235B2 (en) 2004-12-29 2011-06-07 Kimberly-Clark Worldwide, Inc. Absorbent article featuring a temperature change member
WO2012099944A1 (en) * 2011-01-21 2012-07-26 Synthes Usa, Llc Trochanteric femoral nail augmentable
US9295504B2 (en) 2009-03-31 2016-03-29 Biomet C.V. Intramedullary nail with locking key
WO2016200839A1 (en) * 2015-06-09 2016-12-15 Savage John B An intramedullary fixation apparatus and system for use in hip and femur fracture surgery
JP2017094102A (en) * 2016-12-08 2017-06-01 株式会社ホムズ技研 Intramedullary fixation system
WO2017123403A1 (en) * 2016-01-15 2017-07-20 Arthrex Gmbh Bone fixation device for treatment of femoral fractures
CN107223040A (en) * 2014-05-09 2017-09-29 萨维奇医疗设计有限责任公司 Medullary fixation device and system in hipbone and femoral fracture operation
US9782206B2 (en) 2011-02-08 2017-10-10 Stryker European Holdings I, Llc Implant system for bone fixation
WO2021242211A1 (en) * 2020-05-28 2021-12-02 Андрей Николаевич КОВАЛЕВ Telescopic intramedullary fixation device (variants)
US11857228B2 (en) 2020-03-06 2024-01-02 Stryker European Operations Limited Set screw for femoral nail

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EP0257118A1 (en) * 1986-07-30 1988-03-02 Howmedica GmbH Osteosynthesis device for the treatment of subtrochanteric fractures
US5514138A (en) * 1991-02-08 1996-05-07 Pfizer Inc. Connector having a stop member
EP0521600B1 (en) * 1991-06-24 1996-06-12 Howmedica International Inc. Intramedullary intertrochanteric fracture fixation appliance
US6235031B1 (en) * 2000-02-04 2001-05-22 Encore Medical Corporation Intramedullary fracture fixation device

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JPH08322848A (en) * 1995-06-01 1996-12-10 Masato Narushima Screw device for fixing bone fracture part
JPH0966061A (en) * 1995-08-31 1997-03-11 Mizuho Ika Kogyo Kk Intramedullary nail

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EP0257118A1 (en) * 1986-07-30 1988-03-02 Howmedica GmbH Osteosynthesis device for the treatment of subtrochanteric fractures
US5514138A (en) * 1991-02-08 1996-05-07 Pfizer Inc. Connector having a stop member
EP0521600B1 (en) * 1991-06-24 1996-06-12 Howmedica International Inc. Intramedullary intertrochanteric fracture fixation appliance
US6235031B1 (en) * 2000-02-04 2001-05-22 Encore Medical Corporation Intramedullary fracture fixation device

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Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 04, 30 April 1997 (1997-04-30) & JP 08 322848 A (NARUSHIMA MASATO), 10 December 1996 (1996-12-10) *
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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1547534A2 (en) * 2003-12-25 2005-06-29 Homs Engineering Inc. Intramedullary nail
EP1547534A3 (en) * 2003-12-25 2006-02-22 Homs Engineering Inc. Intramedullary nail
US7601153B2 (en) 2003-12-25 2009-10-13 Homs Engineering Inc. Intramedullary nail
US7956235B2 (en) 2004-12-29 2011-06-07 Kimberly-Clark Worldwide, Inc. Absorbent article featuring a temperature change member
DE102005039854A1 (en) * 2005-08-23 2007-03-01 Königsee Implantate und Instrumente zur Osteosynthese GmbH Proximal femur nail for stabilization of pertrochanteric fracture, has locking pin enabling rotational locking of support screw, which abuts against part of pin so that relative movement is produced between neck of screw and femur nail
DE102005039854B4 (en) * 2005-08-23 2007-07-12 Königsee Implantate und Instrumente zur Osteosynthese GmbH Proximal femoral nail
WO2008064059A2 (en) * 2006-11-17 2008-05-29 Synthes(U.S.A.) Sliding hip helical implant
WO2008064059A3 (en) * 2006-11-17 2008-10-09 Synthes Usa Sliding hip helical implant
US9295504B2 (en) 2009-03-31 2016-03-29 Biomet C.V. Intramedullary nail with locking key
US8808293B2 (en) 2011-01-21 2014-08-19 DePuy Synthes Products, LLC Trochanteric femoral nail augmentable
WO2012099944A1 (en) * 2011-01-21 2012-07-26 Synthes Usa, Llc Trochanteric femoral nail augmentable
US9782206B2 (en) 2011-02-08 2017-10-10 Stryker European Holdings I, Llc Implant system for bone fixation
US10034696B2 (en) 2011-02-08 2018-07-31 Stryker European Holdings I, Llc Implant system for bone fixation
CN107223040A (en) * 2014-05-09 2017-09-29 萨维奇医疗设计有限责任公司 Medullary fixation device and system in hipbone and femoral fracture operation
CN107223040B (en) * 2014-05-09 2020-11-24 萨维奇医疗设计有限责任公司 Intramedullary fixation device and system for use in hip and femur fracture surgery
WO2016200839A1 (en) * 2015-06-09 2016-12-15 Savage John B An intramedullary fixation apparatus and system for use in hip and femur fracture surgery
WO2017123403A1 (en) * 2016-01-15 2017-07-20 Arthrex Gmbh Bone fixation device for treatment of femoral fractures
JP2017094102A (en) * 2016-12-08 2017-06-01 株式会社ホムズ技研 Intramedullary fixation system
US11857228B2 (en) 2020-03-06 2024-01-02 Stryker European Operations Limited Set screw for femoral nail
WO2021242211A1 (en) * 2020-05-28 2021-12-02 Андрей Николаевич КОВАЛЕВ Telescopic intramedullary fixation device (variants)

Also Published As

Publication number Publication date
EP1401344A2 (en) 2004-03-31
ITMI20011175A1 (en) 2002-12-04
ITMI20011175A0 (en) 2001-06-04
AU2002314058A1 (en) 2002-12-16
WO2002098330A3 (en) 2003-04-24

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