WO1998017189A1 - Dispositif pour solidariser au moins deux corps vertebraux - Google Patents
Dispositif pour solidariser au moins deux corps vertebraux Download PDFInfo
- Publication number
- WO1998017189A1 WO1998017189A1 PCT/FR1997/001866 FR9701866W WO9817189A1 WO 1998017189 A1 WO1998017189 A1 WO 1998017189A1 FR 9701866 W FR9701866 W FR 9701866W WO 9817189 A1 WO9817189 A1 WO 9817189A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plate
- anchoring
- parts
- vertebral bodies
- anchoring parts
- Prior art date
Links
- 238000004873 anchoring Methods 0.000 claims abstract description 38
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 6
- 208000007623 Lordosis Diseases 0.000 claims description 4
- 239000012781 shape memory material Substances 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims 1
- 210000000988 bone and bone Anatomy 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 208000037873 arthrodesis Diseases 0.000 description 5
- 239000007943 implant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000036760 body temperature Effects 0.000 description 2
- 230000001054 cortical effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 208000018360 neuromuscular disease Diseases 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/809—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with bone-penetrating elements, e.g. blades or prongs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7059—Cortical plates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/064—Surgical staples, i.e. penetrating the tissue
- A61B17/0642—Surgical staples, i.e. penetrating the tissue for bones, e.g. for osteosynthesis or connecting tendon to bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/064—Surgical staples, i.e. penetrating the tissue
- A61B2017/0641—Surgical staples, i.e. penetrating the tissue having at least three legs as part of one single body
Definitions
- the invention relates to the technical sector of orthopedic implants, in particular implants for the cervical spine.
- the invention relates to implants performing arthrodesis of the vertebrae.
- the plate is placed on the anterior face of the vertebral bodies to be joined, the screws being engaged through the plate to be screwed into a part of the vertebral bodies in order to ensure good maintenance of the assembly.
- a graft can be placed, the function of which is to provide mechanical support over time until the bone fusion between the two vertebral bodies is effective.
- the plate therefore ensures the maintenance of the graft and acts as a support or stiffening element between the two vertebral bodies.
- a compression clip for osteosynthesis in shape memory material comprising two ⁇ > branches and a cross-member, the branches being able to be introduced rectilinearly into boreholes before being deformed to apply compression when the temperature of the clip reaches body temperature
- the branches being able to be introduced rectilinearly into boreholes before being deformed to apply compression when the temperature of the clip reaches body temperature
- the clip being made of wire, the compression or possible tightening forces are dependent on complex methods for storing and managing the restoring forces of the different branches is delicate ⁇ o
- the invention has set itself the aim of remedying to these disadvantages in a simple, safe, effective and rational way
- the problem which the invention proposes to solve is to ensure the arthrodesis of the vertebrae by means of a single compact element capable of ensuring constant compression between the vertebral bodies considered and of
- the compact element which is intended to be put in place by an anterior approach to the cervical spine, in order to generally maintain a lordosis position, easily risks being extracted unless, as in the prior techniques, does not plan to fix it with screws
- the object of the invention is to ensure, without using additional fixing means such as screws, perfect retention of the clip including in the event of physiological movement decreasing the lordosis effect
- a device has been designed and developed to secure at least two vertebral bodies, characterized in that it comprises at least one plate fitted at each end with a pair of suitable anchoring parts. to be introduced substantially vertically, that is to say axially into predetermined parallel housings in the vertebral bodies to be joined, then, after introduction, be angularly folded in the direction of one another to exert constant compression of the bodies vertebrae) and ensure perfect anchoring
- each plate with its anchoring parts are made from a shape memory material, which corresponds to a determined geometric shape and stable at a positive temperature and to another geometric shape at a negative temperature A very substantially 0 ° C, the anchoring parts are arranged in a substantially vertical plane while at a positive temperature of very substantially 37 ° C, said parts are automatically folded and folded Note that the plates are stored at 0 ° C shape enabling the parts of the anchoring to remain in vertical position ⁇ o
- each anchoring part is connected to the ends of the corresponding plate by a central connection zone delimiting two profiled notches to allow the deformation of said parts
- each anchoring part comprises two tabs connected at one of their ends by a common branch having the central connection zone.
- leg-shaped anchoring parts can thus, when the plate reaches body temperature, tilt o angularly in a sagittal plane so as to exert permanent compression on the cancellous bone of the vertebral bodies of the vertebrae concerned around , each time, from the central connection area, while the two tabs located on the same central connection area can tilt towards one another thanks to the presence of the notches to deform in a
- the compressive force exerted by the two pairs of anchoring legs and which tends to bring two vertebrae closer to each other can be maintained at a value significantly greater than the force tending to bring angularly two legs the same pair from each other.
- This can be easily obtained from the fact that the central connection zone can present a large quantity of material subjected to the memory effect while the bringing the two tabs together in a single pair may be determined by the quantity of material which is lower at the level of the notch at the point where the tab is connected to the central connection zone
- each leg internally has a series of toothed pins
- the plate has a transverse curvature corresponding very substantially to the anterior face of the vertebral bodies, îo -
- the plate has at least one lumen for the engagement of one or more fixing screws
- This lumen is preferably a central lumen, which can advantageously be circular It can be internally tapped or otherwise made to receive an element of an ancillary device intended to support the plate when it is at its lowered temperature in order to
- This passage can, moreover, be used for the insertion of a spacer, such as an interbody cage or a bone graft or other material intended for the facilitation of arthrodesis
- this passage 0 can be used to receive a screw screwed into the body of the central vertebra and thus ensure effective solida ⁇ sation of the three vertebrae with compression of the extreme vertebrae against the intermediate vertebra
- the plate according to the invention can also have, midway between the two pairs of parts or anchoring lugs, intersomatic reliefs 5 intended to penetrate into the intertebral space during the positioning of the plate, and maintain the height joint space
- Figure 1 is a perspective view of the entire plate at) a temperature of about 0 ° C
- Figure 2 is a perspective view corresponding to Figure 1 at a positive temperature of 37 ° C
- Figure 3 is a plan view of the plate in the 0 ° C state.
- FIG. 4 is a front view corresponding to FIG. 3.
- Figure 5 is a plan view of the plate at 37 ° C.
- Figure 6 is a front view corresponding to Figure 5.
- Figure 7 is a front view of a portion of the spine showing the arthrodesis of two vertebral bodies according to the features of the invention.
- FIG. 8 is a view in longitudinal section corresponding to FIG. 7.
- the problem which the invention proposes to solve is to ensure constant compression of the vertebral bodies (V1) and (V2), vertebrae which must be joined.
- the securing device according to the invention comprises a compact connecting element comprising a plate (1) equipped at each end, with anchoring parts in the form of legs (1a) and (1b). These anchoring parts (1a) and (1b) are shaped to be engaged in predetermined housings in the vertebral bodies to be joined (V1) and (V2), opposite the spinous processes.
- the plate (1) with its anchoring parts (1a) and (1b) are made from a shape memory material to correspond to a determined geometric shape and stable at a positive temperature of about
- the anchoring parts (1 a) and (1 b) are arranged in a substantially vertical plane
- each anchoring part (1 a) and (1 b) is connected to the ends of the plate (1), by a central connection zone (1 c) and (1 d), delimiting two profiled notches (1 c1) (1 c2) and (1 b).
- each anchoring part Given the design of each anchoring part, their deformation, under the effect of the temperature variation under the conditions indicated above, has the effect of deforming each of the legs (1 a1) 0 (1 a2) and (1 b1) (1 b2) both in the frontal plane and in the sagittal plane ( Figures 2, 5 and 6) It follows that this deformation, under the conditions indicated on each of the legs, allows compression, both at the level of the plate at its ends, in order to have a cortical and spongy approximation
- the anchoring tabs (1a, 1b) are located at a certain distance from their central connection zone (1c, 1 d) thanks * to the interposition of a material bridge defining a part of the edge of the corresponding notch and this material bridge can be used to adjust the force or the value of the deformation which angularly brings the two legs d 'a) same pair, for example the legs (1 a) lo rs when the positive temperature is reached, the locking clamp sought between the two legs of the same pair
- the plate (1) has a transverse curvature corresponding very substantially to the profile of the anterior face of the vertebral bodies and a longitudinal curvature to adapt to cervical lordosis.
- the length of the plate (1) is a function of the number of vertebral bodies to be joined.
- each plate with its anchoring parts is stored at 0 ° C or at a negative temperature, in a form allowing the said anchoring parts to be kept in the vertical position.
- the assembly of the whole of the plate is easily carried out by an ancillary which makes it possible to produce the four housings which will receive the four legs (1a1) (1a2) and (1b1) (1b2).
- the ancillary device can advantageously be fixed, for example by screwing, in a passage or lumen (1 h).
- the plate (1) may also include between the pairs of legs (1 a), (1 b), reliefs (1 i), for example of the order of 5 mm long and 4 mm wide, extending parallel to the legs and intended to be introduced between two vertebral bodies when the plate is placed, to maintain a certain value of the disc space and relieve the intervertebral disc.
- the plate can be manufactured in one piece by cutting and folding or stamping from a metal sheet, for example nickel-titanium, capable of being educated thanks to its shape memory properties.
- a metal sheet for example nickel-titanium, capable of being educated thanks to its shape memory properties.
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Neurology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10519033A JP2001502572A (ja) | 1996-10-18 | 1997-10-17 | 少なくとも2つの椎骨を固定する器具 |
US09/284,569 US6336928B1 (en) | 1996-10-18 | 1997-10-17 | Device for securing at least two vertebrae |
EP97911291A EP1011506A1 (fr) | 1996-10-18 | 1997-10-17 | Dispositif pour solidariser au moins deux corps vertebraux |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9612951A FR2754702B1 (fr) | 1996-10-18 | 1996-10-18 | Dispositif pour solidariser au moins deux corps vertebraux |
FR96/12951 | 1996-10-18 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/293,110 Continuation US6440275B1 (en) | 1996-10-16 | 1999-04-16 | Solar stills for producing fresh water |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998017189A1 true WO1998017189A1 (fr) | 1998-04-30 |
Family
ID=9496968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1997/001866 WO1998017189A1 (fr) | 1996-10-18 | 1997-10-17 | Dispositif pour solidariser au moins deux corps vertebraux |
Country Status (5)
Country | Link |
---|---|
US (1) | US6336928B1 (fr) |
EP (1) | EP1011506A1 (fr) |
JP (1) | JP2001502572A (fr) |
FR (1) | FR2754702B1 (fr) |
WO (1) | WO1998017189A1 (fr) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2139008C1 (ru) * | 1998-05-06 | 1999-10-10 | Рябуха Николай Павлович | Устройство для спондилодеза |
RU2139009C1 (ru) * | 1998-07-14 | 1999-10-10 | Рябуха Николай Павлович | Устройство для спондилодеза |
JP2004500156A (ja) * | 1999-07-07 | 2004-01-08 | チルドレンズ ホスピタル メディカル センター | 脊椎矯正システム |
US6773437B2 (en) * | 1999-04-23 | 2004-08-10 | Sdgi Holdings, Inc. | Shape memory alloy staple |
RU2241415C2 (ru) * | 2001-10-22 | 2004-12-10 | Российский научно-исследовательский нейрохирургический институт им. проф. А.Л. Поленова | Эндопротез дужки позвонка |
RU2283054C1 (ru) * | 2005-03-17 | 2006-09-10 | Общество с ограниченной ответственностью "ИЛЬКОМ" | Фиксатор для стабилизации позвоночника |
RU2514121C1 (ru) * | 2013-02-01 | 2014-04-27 | Закрытое Акционерное Общество "КИМПФ" | Фиксатор для протезирования связочных и костных структур позвоночника при ламинопластике |
US9072554B2 (en) | 2005-09-21 | 2015-07-07 | Children's Hospital Medical Center | Orthopedic implant |
US9474561B2 (en) | 2013-11-19 | 2016-10-25 | Wright Medical Technology, Inc. | Two-wire technique for installing hammertoe implant |
US9498266B2 (en) | 2014-02-12 | 2016-11-22 | Wright Medical Technology, Inc. | Intramedullary implant, system, and method for inserting an implant into a bone |
US9498273B2 (en) | 2010-06-02 | 2016-11-22 | Wright Medical Technology, Inc. | Orthopedic implant kit |
US9504582B2 (en) | 2012-12-31 | 2016-11-29 | Wright Medical Technology, Inc. | Ball and socket implants for correction of hammer toes and claw toes |
US9545274B2 (en) | 2014-02-12 | 2017-01-17 | Wright Medical Technology, Inc. | Intramedullary implant, system, and method for inserting an implant into a bone |
US9603643B2 (en) | 2010-06-02 | 2017-03-28 | Wright Medical Technology, Inc. | Hammer toe implant with expansion portion for retrograde approach |
US9724140B2 (en) | 2010-06-02 | 2017-08-08 | Wright Medical Technology, Inc. | Tapered, cylindrical cruciform hammer toe implant and method |
US9808296B2 (en) | 2014-09-18 | 2017-11-07 | Wright Medical Technology, Inc. | Hammertoe implant and instrument |
US10080597B2 (en) | 2014-12-19 | 2018-09-25 | Wright Medical Technology, Inc. | Intramedullary anchor for interphalangeal arthrodesis |
US10849664B2 (en) | 2014-02-27 | 2020-12-01 | Exotoe Llc | Bone fusion/fixation device and related systems and methods |
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US20040088835A1 (en) * | 2002-11-08 | 2004-05-13 | Tachauer Ernesto S. | Active fasteners |
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US7240677B2 (en) * | 2003-02-03 | 2007-07-10 | Biomedical Enterprises, Inc. | System and method for force, displacement, and rate control of shaped memory material implants |
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RU2139008C1 (ru) * | 1998-05-06 | 1999-10-10 | Рябуха Николай Павлович | Устройство для спондилодеза |
RU2139009C1 (ru) * | 1998-07-14 | 1999-10-10 | Рябуха Николай Павлович | Устройство для спондилодеза |
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JP2004500156A (ja) * | 1999-07-07 | 2004-01-08 | チルドレンズ ホスピタル メディカル センター | 脊椎矯正システム |
US7481830B2 (en) | 1999-07-07 | 2009-01-27 | Children's Hospital Medical Center | Spinal correction system |
RU2241415C2 (ru) * | 2001-10-22 | 2004-12-10 | Российский научно-исследовательский нейрохирургический институт им. проф. А.Л. Поленова | Эндопротез дужки позвонка |
RU2283054C1 (ru) * | 2005-03-17 | 2006-09-10 | Общество с ограниченной ответственностью "ИЛЬКОМ" | Фиксатор для стабилизации позвоночника |
US9072554B2 (en) | 2005-09-21 | 2015-07-07 | Children's Hospital Medical Center | Orthopedic implant |
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US9724140B2 (en) | 2010-06-02 | 2017-08-08 | Wright Medical Technology, Inc. | Tapered, cylindrical cruciform hammer toe implant and method |
US9504582B2 (en) | 2012-12-31 | 2016-11-29 | Wright Medical Technology, Inc. | Ball and socket implants for correction of hammer toes and claw toes |
US10278828B2 (en) | 2012-12-31 | 2019-05-07 | Wright Medical Technology, Inc. | Ball and socket implants for correction of hammer toes and claw toes |
RU2514121C1 (ru) * | 2013-02-01 | 2014-04-27 | Закрытое Акционерное Общество "КИМПФ" | Фиксатор для протезирования связочных и костных структур позвоночника при ламинопластике |
US9474561B2 (en) | 2013-11-19 | 2016-10-25 | Wright Medical Technology, Inc. | Two-wire technique for installing hammertoe implant |
US9675392B2 (en) | 2013-11-19 | 2017-06-13 | Wright Medical Technology, Inc. | Two-wire technique for installing hammertoe implant |
US9545274B2 (en) | 2014-02-12 | 2017-01-17 | Wright Medical Technology, Inc. | Intramedullary implant, system, and method for inserting an implant into a bone |
US9498266B2 (en) | 2014-02-12 | 2016-11-22 | Wright Medical Technology, Inc. | Intramedullary implant, system, and method for inserting an implant into a bone |
US10849664B2 (en) | 2014-02-27 | 2020-12-01 | Exotoe Llc | Bone fusion/fixation device and related systems and methods |
US11660131B2 (en) | 2014-02-27 | 2023-05-30 | Exotoe Llc | Bone fusion/fixation device and related systems and methods |
US9808296B2 (en) | 2014-09-18 | 2017-11-07 | Wright Medical Technology, Inc. | Hammertoe implant and instrument |
US10299840B2 (en) | 2014-09-18 | 2019-05-28 | Wright Medical Technology, Inc. | Hammertoe implant and instrument |
US10080597B2 (en) | 2014-12-19 | 2018-09-25 | Wright Medical Technology, Inc. | Intramedullary anchor for interphalangeal arthrodesis |
US20240293118A1 (en) * | 2023-03-02 | 2024-09-05 | Medartis Ag | Compression fastener, instruments and methods |
Also Published As
Publication number | Publication date |
---|---|
JP2001502572A (ja) | 2001-02-27 |
FR2754702A1 (fr) | 1998-04-24 |
US6336928B1 (en) | 2002-01-08 |
EP1011506A1 (fr) | 2000-06-28 |
FR2754702B1 (fr) | 1999-01-08 |
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