JPH0998983A - Vertebra fixing device - Google Patents
Vertebra fixing deviceInfo
- Publication number
- JPH0998983A JPH0998983A JP7286813A JP28681395A JPH0998983A JP H0998983 A JPH0998983 A JP H0998983A JP 7286813 A JP7286813 A JP 7286813A JP 28681395 A JP28681395 A JP 28681395A JP H0998983 A JPH0998983 A JP H0998983A
- Authority
- JP
- Japan
- Prior art keywords
- pair
- shafts
- base frame
- implant
- parallel
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7011—Longitudinal element being non-straight, e.g. curved, angled or branched
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (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)
- Mutual Connection Of Rods And Tubes (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、複数の椎骨を一定
の位置関係に固定するため、各椎骨にインプラントを植
設し、各インプラントを基枠に位置調節可能に結合子を
用いて取り付ける椎骨固定装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertebra in which an implant is implanted in each vertebra in order to fix a plurality of vertebrae in a fixed positional relationship, and each implant is attached to a base frame using a connector capable of position adjustment. It relates to a fixing device.
【０００２】[0002]
【従来の技術】脊椎を所望の形態に保持するために、各
椎骨の位置関係を固定する技術は公知であり、そのため
の装置として例えば特開平１−１２１０４６号の発明が
提案されている。同装置では各椎骨に植設したインプラ
ントを結合するプレート部分に開口か、長尺のスロット
を形成したものを使用する。しかし、そのスロットは複
数の凹所を間隔をおいて配置した構造であるので、段階
的にしか位置を調節することができないという欠点があ
った。2. Description of the Related Art A technique for fixing the positional relationship between vertebrae in order to hold a spine in a desired shape is well known, and an apparatus for that purpose is proposed, for example, by the invention of Japanese Patent Laid-Open No. 1-121046. The device uses an opening or an elongated slot formed in the plate portion connecting the implants implanted in each vertebra. However, since the slot has a structure in which a plurality of recesses are arranged at intervals, there is a drawback that the position can be adjusted only in stages.
【０００３】[0003]
【発明が解決しようとする課題】本発明は前記の点に鑑
みなされたものでその課題は、複数の椎骨を一定の位置
関係に正確かつ迅速に固定することができ、また椎骨に
植設したインプラントの基枠に対する固定位置を連続的
に調節できるようにすることである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to fix a plurality of vertebrae accurately and quickly in a fixed positional relationship and to implant them in vertebrae. It is to be able to continuously adjust the fixed position of the implant with respect to the base frame.
【０００４】[0004]
【課題を解決するための手段】前記課題を解決するため
本発明は、椎骨固定装置について、複数の椎骨に及ぶ長
さを持った、平行な一対の軸部１１、１２によって、イ
ンプラント１５の他端部を取り付ける基枠１０を形成
し、一対の軸部１１、１２を両側から挾むことによって
基枠１０に固定可能であり、かつ固定位置を連続的に調
節するため軸部１１、１２に沿って一対の凹溝２３、２
４を設けた一方の挾持体２１と、各凹溝２３、２４に嵌
め込んだ軸部１１、１２に線接触可能な一対の押さえ斜
面２５、２６を有する他方の挾持体２２とによって結合
子２０を形成し、両挾持体２１、２２を一体化するねじ
手段３０によって軸部１１、１２を平行に締め付けると
いう手段を講じたものである。In order to solve the above-mentioned problems, the present invention relates to a vertebral fixation device, in which a pair of parallel shafts 11 and 12 having a length extending over a plurality of vertebrae is used, and another implant 15 is provided. It is possible to fix the base frame 10 by forming a base frame 10 to which the end parts are attached and sandwiching a pair of shaft parts 11 and 12 from both sides, and to continuously adjust the fixing position. A pair of concave grooves 23, 2 along
4 by one holding body 21 and the other holding body 22 having a pair of pressing slopes 25, 26 capable of making line contact with the shaft portions 11, 12 fitted in the recessed grooves 23, 24, respectively. Is formed, and means for tightening the shaft portions 11 and 12 in parallel by the screw means 30 that integrates the two holding bodies 21 and 22.
【０００５】[0005]
【発明の実施の形態】本発明に係る椎骨固定装置Ａは、
複数の椎骨Ｖを一定の位置関係に固定するため、各椎骨
Ｖに植設したインプラント１５を夫々結合子２０を用い
て基枠１０に位置調節可能に取り付けるものである（図
４参照）。BEST MODE FOR CARRYING OUT THE INVENTION A vertebra fixing device A according to the present invention is
In order to fix the plurality of vertebrae V in a fixed positional relationship, the implants 15 implanted in the respective vertebrae V are attached to the base frame 10 using the connectors 20 so that their positions can be adjusted (see FIG. 4).
【０００６】椎骨Ｖ即ち脊椎の椎体部分に、アンカーと
して植設されるインプラント１５は棒状を有し、外周に
らせん状凹凸を形成したいわゆるねじ体であり、これを
各椎骨Ｖに螺入する。各インプラント１５の位置を、個
人の椎骨の位置関係に理想的に適合させるため、軸状を
有する基枠１０と結合子２０が組み合わされる。The implant 15 that is implanted as an anchor in the vertebra V, that is, the vertebral body portion of the spine is a so-called screw body having a rod shape and spiral irregularities formed on the outer periphery, and this is screwed into each vertebra V. . In order to ideally match the position of each implant 15 to the positional relationship of the individual vertebra, the base frame 10 having an axial shape and the connector 20 are combined.
【０００７】基枠１０は、固定対象の複数の椎骨Ｖ…に
及ぶ長さを持った、平行な一対の軸部１１、１２を有す
る。一対の軸部１１、１２は、軸回りにインプラント１
５が回転するのを防止し、かつ軸方向へ連続的に結合子
２０を移動させる条件を提供する。The base frame 10 has a pair of parallel shaft portions 11 and 12 having a length extending to a plurality of vertebrae V to be fixed. The pair of shaft portions 11 and 12 are arranged so that the implant 1 is provided around the shaft.
The conditions for preventing the rotation of the coil 5 and for continuously moving the connector 20 in the axial direction are provided.
【０００８】実施例における基枠１０は、軸体をほぼＵ
字状に曲げ加工することによって形成されており、一端
は閉じた曲がり部１３、他の一端は開いた軸端１４にな
っている。軸部１１、１２の長さは任意であり、最小限
隣接の椎骨Ｖ、Ｖを連結することができる長さを有して
いれば良い。In the base frame 10 in the embodiment, the shaft is substantially U-shaped.
It is formed by bending into a letter shape, and has a closed bent portion 13 at one end and an open shaft end 14 at the other end. The lengths of the shaft portions 11 and 12 are arbitrary, and it is sufficient that the shaft portions 11 and 12 have a length capable of connecting at least adjacent vertebrae V and V.
【０００９】結合子２０は基枠１０とインプラント１５
とを結合するものであり、従って基枠１０及びインプラ
ント１５との結合手段を有する。基枠１０に対する結合
手段としては一対の軸部１１、１２を両側から挾むこと
によって基枠１０に固定するため一対の挾持体２１、２
２を有する。単に挾むだけではなく、本発明において
は、軸部１１、１２から外れる可能性をなくすため、軸
部１１、１２を嵌め込むことができる一対の凹溝２３、
２４を一方の挾持体２１に平行に形成する。The connector 20 includes a base frame 10 and an implant 15.
Therefore, it has a means for connecting the base frame 10 and the implant 15. As a coupling means for the base frame 10, a pair of pinching members 21, 2 for fixing the base frame 10 by sandwiching the pair of shaft portions 11, 12 from both sides.
2 In the present invention, the pair of concave grooves 23, into which the shaft portions 11 and 12 can be fitted, in order to eliminate the possibility of the shaft portions 11 and 12 coming off from the shaft portions 11 and 12, in addition to merely being sandwiched
24 is formed parallel to one holding body 21.
【００１０】また他の一方の挾持体２２は、凹溝２３、
２４に嵌合した一対の軸部１１、１２を押さえる。その
部分には押さえ面２５、２６を平行な傾斜状に設ける。
平行な押さえ面２５、２６が平行な軸部１１、１２に接
することでそれらが平行に絞まって行き、挾持体２１、
２２の位置決めも自動的になされるからである。On the other hand, the other holding body 22 has a groove 23,
The pair of shaft portions 11 and 12 fitted to 24 are pressed down. Pressing surfaces 25 and 26 are provided on the portion in a parallel inclined shape.
The parallel pressing surfaces 25, 26 come into contact with the parallel shaft portions 11, 12 so that they are narrowed in parallel, and the holding body 21,
This is because the positioning of 22 is also automatically performed.
【００１１】図示の実施例に於ける押さえ面２５、２６
は直方体から成る挾持体２２の上面の平行な稜線を落と
すように形成した外向きの傾斜面から成る。しかしこれ
と逆に、上面に軸部１１、１２がほぼ収まる凹部を設
け、その内側の稜線を落とすようにして内向きの傾斜面
を形成し、押さえ面２５、２６としても作用、効果は同
じになる。Holding surfaces 25, 26 in the illustrated embodiment
Is an outwardly inclined surface formed so as to drop parallel ridge lines on the upper surface of the holding body 22 made of a rectangular parallelepiped. However, conversely, a recess is provided on the upper surface in which the shafts 11 and 12 are substantially accommodated, and an inwardly inclined surface is formed by dropping the inner ridge line, and the same action and effect can be obtained as the pressing surfaces 25 and 26. become.
【００１２】インプラント１５に対する結合手段として
は、ねじ手段３０を用意し、これをインプラント１５の
ねじ手段１６と螺合させる。このねじ手段１６、３０は
結合子２０を貫通し、その螺合によって結合子２０の一
体化と基枠１０のインプラント１５への取り付けの二つ
の目的を果たす。２７、２８は各挾持体２１、２２に開
口した、ねじ手段３０を通すための通口を示す。A screw means 30 is prepared as a connecting means for the implant 15 and is screwed with the screw means 16 of the implant 15. The screw means 16, 30 penetrate the connector 20 and, by means of their screwing, serve the two purposes of integrating the connector 20 and attaching the base frame 10 to the implant 15. Reference numerals 27 and 28 denote through holes for opening the screw means 30, which are opened in the holding bodies 21 and 22.
【００１３】実施例において、インプラント１５のねじ
手段１６はその基端側に形成しためねじであり、従って
その螺合相手のねじ手段３０はボルト状のおねじ部３１
と操作部３２とを有する。実施例ではねじ手段３０に頭
部を設けず、別体のナットを用いて緊締部３２としてい
る。おねじ部３１が長過ぎた場合に外側端部の切除で対
応するためである。しかし、このねじ手段３０として有
頭ボルト型のものを用いることも勿論可能である。In the preferred embodiment, the screw means 16 of the implant 15 is a screw for forming on the proximal side thereof, so that the screw means 30 with which it is screwed is a bolt-shaped male screw part 31.
And an operation unit 32. In the embodiment, the screw means 30 is not provided with a head portion, and the tightening portion 32 is formed by using a separate nut. This is because when the male screw portion 31 is too long, the outer end portion is cut off. However, it is of course possible to use a headed bolt type screw means 30.
【００１４】このように構成された本発明の装置を構成
する各部材は生体に悪影響を及ぼさない素材によって製
造する。施術に際しては、各インプラント１５、１５…
に対する各１組の結合子２０を基枠１０に配置してお
き、各位置が正確に決まったところでねじ手段３０を締
め付ければ良い。なお本発明におけるインプラントと
は、ねじ部によって骨に螺入するボルト型の定着手段を
指す。Each member constituting the device of the present invention thus constructed is manufactured from a material that does not adversely affect the living body. During the operation, each implant 15, 15 ...
It is sufficient to arrange one set of each connector 20 for the above in the base frame 10 and tighten the screw means 30 when each position is accurately determined. The implant in the present invention refers to a bolt type fixing means that is screwed into a bone by a screw portion.
【００１５】[0015]
【発明の効果】本発明は以上の如く構成されかつ作用す
るものであるから、複数の椎骨を一定の位置関係にして
固定するために、結合子２０を基枠１０の軸部１１、１
２上で自由にスライドして全く任意の位置に配置し、か
つその位置で固定することができ、しかもその固定に際
して、結合子２０を構成する一対の挾持体２１、２２の
一方の平行な凹溝２３、２４と、他方の平行な押さえ斜
面２５、２６とが軸部１１、１２に接するので、軸部１
１、１２は線接触によって平行出しされつつ締絞まって
ゆくため、無理なく理想的な施術が行なえるという効果
を奏する。Since the present invention is constructed and operates as described above, in order to fix a plurality of vertebrae in a fixed positional relationship, the connector 20 is fixed to the shaft portions 11, 1 of the base frame 10.
It can be freely slid on 2 to be placed at an arbitrary position and fixed at that position, and at the time of fixing, one of the parallel recesses of one of the pair of holding bodies 21, 22 constituting the connector 20 is fixed. Since the grooves 23 and 24 and the other parallel pressing slopes 25 and 26 are in contact with the shaft portions 11 and 12, the shaft portion 1
Since Nos. 1 and 12 are squeezed while being parallelized by line contact, there is an effect that an ideal treatment can be performed without difficulty.
【図１】本発明に係る椎骨固定装置の１実施例を示す分
解斜視図。FIG. 1 is an exploded perspective view showing an embodiment of a vertebra fixing device according to the present invention.
【図２】同じく平面図。FIG. 2 is a plan view of the same.
【図３】図２のＩＩＩ−ＩＩＩ線断面図。3 is a sectional view taken along line III-III in FIG.
【図４】使用状態を示す斜視図。FIG. 4 is a perspective view showing a usage state.
Claims (3)
ため、各椎骨にインプラントを植設し、各インプラント
を基枠に位置調節可能に結合子を用いて取り付ける椎骨
固定装置であって、複数の椎骨に及ぶ長さを持った、平
行な一対の軸部１１、１２によって、インプラント１５
の他端部を取り付ける基枠１０を形成し、一対の軸部１
１、１２を両側から挾むことによって基枠１０に固定可
能であり、かつ固定位置を連続的に調節するため軸部１
１、１２に沿って一対の凹溝２３、２４を設けた一方の
挾持体２１と、各凹溝２３、２４に嵌め込んだ軸部１
１、１２に線接触可能な一対の押さえ斜面２５、２６を
有する他方の挾持体２２とによって結合子２０を形成
し、両挾持体２１、２２を一体化するねじ手段３０によ
って軸部１１、１２を平行に締め付けることを特徴とす
る椎骨固定装置。1. A vertebral fixation device in which implants are implanted in each vertebra to fix a plurality of vertebrae in a fixed positional relationship and each implant is attached to a base frame using a connector so that the position of each implant can be adjusted. The implant 15 is formed by a pair of parallel shafts 11, 12 having a length extending over a plurality of vertebrae.
Forming a base frame 10 for attaching the other end of the pair of shaft parts 1
Shafts 1 and 12 can be fixed to the base frame 10 by sandwiching the shafts 1 and 12 from the both sides, and the fixing position can be continuously adjusted.
One holding body 21 provided with a pair of concave grooves 23, 24 along the grooves 1 and 12, and a shaft portion 1 fitted in each concave groove 23, 24.
1 and 12 form a connector 20 with the other holding body 22 having a pair of pressing slopes 25 and 26 capable of making line contact, and the shaft portions 11 and 12 are formed by screw means 30 that integrates the two holding bodies 21 and 22. Vertebra fixation device characterized by tightening in parallel.
曲げ加工することによって形成した平行な一対の軸部１
１、１２を有する請求項第１項記載の椎骨固定装置。2. The base frame 10 comprises a pair of parallel shaft portions 1 formed by bending one shaft body into a substantially U shape.
The vertebral fixation device according to claim 1, comprising:
の軸部１１、１２を断面略Ｕ字状の凹溝２３、２４を有
し、他方の挾持体２２は凹溝２３、２４に嵌め込んだ一
対の軸部１１、１２を押さえる外向きの傾斜面からなる
押さえ斜面２５、２６を有する請求項第１項記載の椎骨
固定装置。3. The holding body 21 of one side of the connector 20 has a pair of shaft portions 11 and 12 with concave grooves 23 and 24 having a substantially U-shaped cross section, and the other holding body 22 has concave grooves 23 and 24. The vertebra fixation device according to claim 1, further comprising pressing slopes (25, 26) which are outwardly inclined faces that press the pair of shafts (11, 12) fitted in the shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7286813A JP2773106B2 (en) | 1995-10-06 | 1995-10-06 | Vertebral fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7286813A JP2773106B2 (en) | 1995-10-06 | 1995-10-06 | Vertebral fixation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0998983A true JPH0998983A (en) | 1997-04-15 |
| JP2773106B2 JP2773106B2 (en) | 1998-07-09 |
Family
ID=17709383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7286813A Expired - Lifetime JP2773106B2 (en) | 1995-10-06 | 1995-10-06 | Vertebral fixation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2773106B2 (en) |
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|---|---|---|---|---|
| WO2003032850A1 (en) * | 2001-10-18 | 2003-04-24 | Ldr Medical | Progressive approach osteosynthesis device and preassembly method |
| WO2003032851A1 (en) * | 2001-10-18 | 2003-04-24 | Ldr Medical | Plate for osteosynthesis device and preassembly method |
| JP2007167658A (en) * | 2005-12-23 | 2007-07-05 | Biedermann Motech Gmbh | Dynamic stabilizer for bone or vertebra |
| CN101816586A (en) * | 2010-03-08 | 2010-09-01 | 北京纳通投资有限公司 | Pedicle screw pressurizing and propping fixation clamp |
| CN101999927A (en) * | 2010-11-28 | 2011-04-06 | 孙德修 | Universal locking pressure device for bone fracture plate |
| CN102670295A (en) * | 2012-06-04 | 2012-09-19 | 上海拓腾医疗器械有限公司 | Internal fixation device of spine |
| US8845691B2 (en) | 2003-09-01 | 2014-09-30 | Ldr Medical | Osseous anchoring implant with a polyaxial head and method for installing the implant |
| US9326795B2 (en) | 2001-12-12 | 2016-05-03 | Ldr Medical | Implant for osseous anchoring with polyaxial head |
| US9675389B2 (en) | 2009-12-07 | 2017-06-13 | Samy Abdou | Devices and methods for minimally invasive spinal stabilization and instrumentation |
| US10548740B1 (en) | 2016-10-25 | 2020-02-04 | Samy Abdou | Devices and methods for vertebral bone realignment |
| US10575961B1 (en) | 2011-09-23 | 2020-03-03 | Samy Abdou | Spinal fixation devices and methods of use |
| US10695105B2 (en) | 2012-08-28 | 2020-06-30 | Samy Abdou | Spinal fixation devices and methods of use |
| US10751187B2 (en) | 2007-06-08 | 2020-08-25 | Ldr Medical | Intersomatic cage, intervertebral prosthesis, anchoring device and implantation instruments |
| US10857003B1 (en) | 2015-10-14 | 2020-12-08 | Samy Abdou | Devices and methods for vertebral stabilization |
| US10918498B2 (en) | 2004-11-24 | 2021-02-16 | Samy Abdou | Devices and methods for inter-vertebral orthopedic device placement |
| US10973648B1 (en) | 2016-10-25 | 2021-04-13 | Samy Abdou | Devices and methods for vertebral bone realignment |
| US11006982B2 (en) | 2012-02-22 | 2021-05-18 | Samy Abdou | Spinous process fixation devices and methods of use |
| US11173040B2 (en) | 2012-10-22 | 2021-11-16 | Cogent Spine, LLC | Devices and methods for spinal stabilization and instrumentation |
| US11179248B2 (en) | 2018-10-02 | 2021-11-23 | Samy Abdou | Devices and methods for spinal implantation |
| US11992423B2 (en) | 2021-08-23 | 2024-05-28 | Samy Abdou | Devices and methods for inter-vertebral orthopedic device placement |
-
1995
- 1995-10-06 JP JP7286813A patent/JP2773106B2/en not_active Expired - Lifetime
Cited By (40)
| Publication number | Priority date | Publication date | Assignee | Title |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2773106B2 (en) | 1998-07-09 |
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