JP3061617B1 - Rod coupling device - Google Patents
Rod coupling deviceInfo
- Publication number
- JP3061617B1 JP3061617B1 JP11138717A JP13871799A JP3061617B1 JP 3061617 B1 JP3061617 B1 JP 3061617B1 JP 11138717 A JP11138717 A JP 11138717A JP 13871799 A JP13871799 A JP 13871799A JP 3061617 B1 JP3061617 B1 JP 3061617B1
- Authority
- JP
- Japan
- Prior art keywords
- rod
- engaging
- implant
- receiving
- rod receiving
- 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.)
- Expired - Fee Related
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
- A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
Abstract
【要約】
【目的】 インプラントとロッドの結合について、より
完全な固定を実現する。
【構成】 ロッド１０を受け支えるロッド受け部１２、
１２′を有するロッド受け体１３、１３′と、ロッド受
け体１３、１３′の係合部１４、１４、１４′、１４′
に係合可能な係合子１５、１５′と、ロッド受け部１
２、１２′に受け支えられているロッド１０を締め付け
るために、係合子１５、１５′に設けためねじ部１８に
ねじ込まれる止めねじ１７とからなり、係合子１５、１
５′とロッド受け体１３、１３′とは傾斜面にて係合す
る構成を持つロッド結合装置。Abstract: [Objective] To realize more complete fixation of an implant-rod connection. [Structure] A rod receiving portion 12 for receiving a rod 10,
Rod receivers 13 and 13 'having 12' and engaging portions 14, 14, 14 'and 14' of rod receivers 13 and 13 '
15 and 15 'which can be engaged with the rod receiving portion 1
A set screw 17 is screwed into a threaded portion 18 to be provided on the engaging members 15 and 15 'for tightening the rod 10 supported by the engaging members 15, 12'.
A rod coupling device having a configuration in which 5 'and rod receiving bodies 13, 13' are engaged on an inclined surface.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、骨に植設されるイ
ンプラントと、複数のインプラントに沿って配置される
ロッドとを結合するための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 device for connecting an implant to be implanted in a bone and a rod arranged along the plurality of implants.
【０００２】[0002]
【従来の技術】骨に植設されたインプラントとロッドと
の結合のための装置としては、特開平６−２９６６２１
号または米国特許第５４４３４６７号もしくは第５７２
５５２７号公報各記載の発明が公知である。上記発明は
いずれもねじ切りされたおねじからなるインプラントを
受入部材の内ねじに圧力手段によってねじ止めし、圧力
手段の頂部に配置したロッド固定ナットによってねじ止
めするとともに、受入部材の外ねじに別の固定ナットを
はめ込むという構成を有する。2. Description of the Related Art An apparatus for connecting an implant implanted in a bone to a rod is disclosed in JP-A-6-296621.
Or US Patent No. 5,443,467 or 572.
The invention described in each of the publications 5527 is known. In each of the above inventions, an implant made of a threaded male screw is screwed to the inner screw of the receiving member by a pressure means, and screwed by a rod fixing nut arranged on the top of the pressure means, and separately to the outer screw of the receiving member. Has a configuration in which the fixing nut is fitted.
【０００３】しかし上記発明の構成によると、圧力手段
とロッド固定ナットという２個のおねじ部材のための内
ねじを受け入れ部材の内面のほぼ全域に切る必要があ
る。受け入れ部材は上記２個のおねじ部材による締結力
を負担することとなり、ロッドを配置するＵ字型の部部
のために低下している強度を補う必要上前記固定ナット
を受入部材の外側にはめ込まなければならない。However, according to the configuration of the present invention, it is necessary to cut the internal threads for the two threaded members of the pressure means and the rod fixing nut almost all over the inner surface of the receiving member. The receiving member bears the fastening force of the two threaded members, and the fixing nut is placed outside the receiving member to compensate for the reduced strength due to the U-shaped portion where the rod is disposed. Must fit.
【０００４】このような情況では、動き得る２個のおね
じ部材にロッドが挟まれているため不安定な固定状態と
なり易い。また固定ナットはロッド固定ナットと同じ位
置になければならず、そのためこれら２個の固定ナット
の関係を常に念頭に置いて操作する必要がある。しかも
各ナットはロックされないため動く可能性があり、固定
ナットについては外側に出すため形状も大きくなる等、
幾つかの問題がある。In such a situation, since the rod is sandwiched between the two movable screw members, the rod tends to be in an unstable fixed state. Further, the fixing nut must be located at the same position as the rod fixing nut, and therefore, it is necessary to always operate the relation between these two fixing nuts in mind. In addition, each nut is not locked, so it may move.
There are several problems.
【０００５】[0005]
【発明が解決しようとする課題】本発明は前記の点に着
目してなされたものであり、その課題はインプラントと
ロッドの結合について、より完全な固定を実現する点に
ある。また本発明の他の課題は１個の止めねじによりロ
ッドを確実に固定可能とする点にある。SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object thereof is to realize a more complete fixation of the connection between the implant and the rod. Another object of the present invention is to make it possible to securely fix the rod with one set screw.
【０００６】[0006]
【課題を解決するための手段】前記課題を解決する本発
明の装置は、ロッドを受け支えるロッド受け部を有する
ロッド受け体と、ロッド受け体の係合部に係合可能な係
合子と、ロッド受け部に受け支えられているロッドを締
め付けるために、係合子に設けためねじ部にねじ込まれ
る止めねじとからなり、係合子とロッド受け体とは傾斜
面にて係合可能とし、止めねじの締め付けによって傾斜
面にずれが生じ、ロッドに加わる締着力が増すように構
成されている。According to a first aspect of the present invention, there is provided a rod receiving member having a rod receiving portion for receiving a rod, an engaging member engageable with an engaging portion of the rod receiving member. And a set screw which is screwed into a screw portion to be provided on the engaging element for tightening the rod supported by the rod receiving section. The engaging element and the rod receiving body can be engaged on an inclined surface , and the set screw is provided. Inclined by tightening
The surface is displaced, so that the fastening force applied to the rod is increased .
【０００７】[0007]
【発明の実施の形態】本発明に係るロッド結合装置は、
骨に植設されるインプラントと、複数のインプラントに
沿って配置されるロッドとを結合するための装置であ
る。インプラントは、ロッド受け部を有するロッド受け
体と一体構造のものでも、また別体構造のものでも、ど
ちらでも良い。図１、図４参照。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A rod connecting device according to the present invention comprises:
A device for joining an implant to be implanted in a bone and a rod arranged along the plurality of implants. The implant may be of an integral structure with the rod receiver having the rod receiver, or may be of a separate structure. See FIG. 1 and FIG.
【０００８】係合子はロッド受け体の係合部に係合可能
である。ロッド受け体と係合子とを組み合わせ、その後
ロッド受けに配置したロッドを係合子にねじ込んだ止め
ねじで固定するために係合状態とされる。係合子とロッ
ド受け体とは、例えばほぼＣ字型の形状とし、２個のＣ
字の両端部に凹部と凸部から成る係合構造を設け、Ｃ字
の開口内にロッドを配置するものとすることができる。The engaging element is engageable with an engaging portion of the rod receiving body. The rod receiving body and the engaging element are combined, and thereafter, the rod arranged in the rod receiving element is brought into the engaged state in order to fix the rod with the set screw screwed into the engaging element. The engaging element and the rod receiving body are, for example, substantially C-shaped,
An engagement structure consisting of a concave portion and a convex portion may be provided at both ends of the character, and the rod may be arranged in the opening of the C shape.
【０００９】上記係合子とロッド受け体とは、傾斜面に
て係合するように構成される。本発明に適用可能な係合
構造としては、例えば係合子の端部をＬ字型の係合端と
し、ロッド受け体の端部は上記係合端と係合可能な係合
相手とすることができるが、このような係合構造をあり
つぎ（ｄｏｖｅｔａｉｌ ｊｏｉｎｔ）状とし、係合接
触が傾斜面で起きるようにする。The engaging element and the rod receiver are configured to engage with each other on an inclined surface. As an engagement structure applicable to the present invention, for example, the end of the engagement element is an L-shaped engagement end, and the end of the rod receiver is an engagement partner capable of engaging with the engagement end. However, such an engagement structure is formed in a dovetail joint shape so that the engagement contact occurs on the inclined surface.
【００１０】傾斜の度合いは、インプラントの軸に対し
て４５度であることが望ましい。傾斜が４５度よりも小
さ過ぎる場合、ロッド受け体をしめ易くはなるが、係合
子が軸方向へ抜け出る方向となり、逆に４５度よりも大
き過ぎる場合には殆ど閉まらなくなるからである。従っ
て、４５度を中心として＋−数度の範囲であれば傾斜度
合いを変更可能である。[0010] Preferably, the degree of inclination is 45 degrees with respect to the axis of the implant. If the inclination is smaller than 45 degrees, the rod receiving body is easily tightened, but the engaging element comes out in the axial direction, and if the inclination is larger than 45 degrees, the rod is hardly closed. Therefore, the inclination degree can be changed within a range of + -several degrees around 45 degrees.
【００１１】[0011]
【実施例】以下図面を参照して本発明をより詳細に説明
する。図１〜図３に示す実施例１は、骨に植設されるロ
ッド１０を受け支えるロッド受け部１２、１２′を有す
るロッド受け体１３、１３′を一体構造として有するイ
ンプラント１１の２例を含む。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. Embodiment 1 shown in FIGS. 1 to 3 shows two examples of an implant 11 having rod receiving bodies 13 and 13 ′ having rod receiving parts 12 and 12 ′ for receiving a rod 10 implanted in a bone as an integral structure. Including.
【００１２】一方のロッド受け部１２の外部両側にはイ
ンプラント１１の先端に向かうにつれてインプラント１
１のおねじ部１９の軸心方向へ接近するように傾いた傾
斜面を有する一対の係合部１４、１４が平行に設けられ
ている。係合子１５の側には上記係合部１４、１４と係
合可能な他方の係合構造として傾斜面を有する係合脚１
６、１６が同じく平行に設けられている。図２参照。On both outer sides of one rod receiving portion 12, the implant 1 is moved toward the tip of the implant 11.
A pair of engaging portions 14 having an inclined surface that is inclined so as to approach the axial direction of one male thread portion 19 is provided in parallel. On the side of the engaging element 15, an engaging leg 1 having an inclined surface as the other engaging structure engageable with the engaging portions 14, 14.
6, 16 are also provided in parallel. See FIG.
【００１３】ロッド１０は、ほぼＣ字型ないしはＵ字型
のロッド受け部１２に外方から載置可能である。しかし
係合子１５は係合脚１６、１６を係合部１４、１４に端
からスライドさせて嵌め合わせるようにして組み合わさ
れる。The rod 10 can be mounted on a substantially C-shaped or U-shaped rod receiving portion 12 from outside. However, the engaging element 15 is assembled by sliding the engaging legs 16, 16 from the ends to the engaging portions 14, 14.
【００１４】もう一方のロッド受け体１３′は、球状頭
部となっており、そのロッド受け部１２′は外部両側
に、インプラント１１の先端に向かうにつれて軸心方向
へ接近するように傾斜した凸曲面から成る傾斜面を有す
る一対の係合部１４′、１４′を一方の係合構造として
有する。係合子１５′の側には、係合部１４′、１４′
と係合可能な他方の係合構造として凹状の傾斜面を有す
る係合脚１６′、１６′が設けられている。図３参照。The other rod receiving body 13 'has a spherical head, and the rod receiving parts 12' have convex portions on both outer sides which are inclined so as to approach in the axial direction toward the tip of the implant 11. It has a pair of engaging portions 14 ', 14' having curved inclined surfaces as one engaging structure. On the side of the engaging element 15 ', engaging portions 14', 14 '
Engagement legs 16 ′, 16 ′ having concave inclined surfaces are provided as the other engagement structure that can engage with the engagement legs. See FIG.
【００１５】この例におけるロッドはロッド受け部１
２′に外方から接近して配置するのではなく、係合子１
５′の取り付け後にロッド受け部１２′に軸方向から差
し込んで配置する。係合子１５′、ロッド受け部１２′
の軸方向に対して９０度交差する方向から係合脚１
６′、１６′の間に差し入れ、そののち９０度回転させ
て係合脚１６′、１６′の間の空所をロッド受け部１
２′と一致させて組み合わせる必要があるからである。The rod in this example is a rod receiving portion 1
2 ', instead of being located close to the outside,
After the attachment of 5 ', it is inserted and arranged in the rod receiving portion 12' from the axial direction. Engagement element 15 ', rod receiving part 12'
From the direction crossing 90 degrees with respect to the axial direction of
6 ', 16' and then rotated 90 degrees to remove the space between the engaging legs 16 ', 16'
This is because it is necessary to combine with 2 ′.
【００１６】上記どちらの係合子１５、１５′にも、止
めねじ１７をねじ入れるためのめねじ部１８が設けられ
る。めねじ部１８は、例えば係合子１５、１５′を各ロ
ッド受け体１３、１３′へ係合させた状態でロッド受け
部１２′、１２′の中心に位置するように設計される。Each of the engagement members 15 and 15 'is provided with a female screw portion 18 for screwing a set screw 17. The female thread portion 18 is designed to be located at the center of the rod receiving portions 12 ', 12' with the engaging members 15, 15 'engaged with the rod receiving members 13, 13', for example.
【００１７】図４〜図６に示した実施例２は、別体構造
のロッド受け体２３、２３′を有するインプラント１１
の２例を含む。このインプラント１１は、おねじ部２９
とロッド受け体２３、２３′との２部分に分かれた構造
を持ち、おねじ部２９の外方端に設けられた膨頭２９ａ
をロッド受け体２３、２３′の底部に設けられた開口部
に差し込んで口縁２３ａに掛止させている。膨頭２９ａ
と口縁２３ａとは球面継手に構成され、インプラント１
１のおねじ部２９に対してロッド受け体２３、２３′の
傾斜を可能とする。図５参照。The second embodiment shown in FIGS. 4 to 6 shows an implant 11 having rod receivers 23 and 23 'of a separate structure.
Including two examples. The implant 11 has a male thread 29
And a rod receiving body 23, 23 ′, and a bulging portion 29 a provided at an outer end of the male screw portion 29.
Are inserted into openings provided at the bottoms of the rod receiving members 23 and 23 'to be hooked on the rim 23a. Bulge 29a
And the lip 23a are formed into a spherical joint, and the implant 1
The rod receivers 23 and 23 'can be inclined with respect to one male thread portion 29. See FIG.
【００１８】ロッド受け体２３、２３′の中央に上方開
口のロッド受け部２２、２２′を有し、その外部両側に
傾斜面を有する一対の係合部２４、２４、２４′、２
４′が設けられている点、かつ係合部は平行なもの２
４、２４と円弧状のもの２４′、２４′との２種から成
る点等は前記実施例１の場合と同じである。また２種の
係合子１５、１５′とその関連構成も当然実施例１の場
合と同じなので、これらについては符号を援用し詳細な
説明は省略する。A pair of engaging portions 24, 24, 24 'and 2' having upper end open rod receiving portions 22 and 22 'at the center of the rod receiving members 23 and 23' and having inclined surfaces on both outer sides thereof.
4 'and the engaging portions are parallel.
4 and 24 and arc-shaped parts 24 'and 24' are the same as those in the first embodiment. The two types of engaging elements 15 and 15 'and their related configurations are also the same as those of the first embodiment, and therefore, reference numerals are used for them, and detailed description is omitted.
【００１９】実施例２の図示に関して回転係合型のもの
（符号にダッシュを付した分）については、特に図を起
こしていないがスライド係合型を示す図６等から自明の
事項である。つまり、おねじ部２９とロッド受け体２
３、２３′の接続には図６の構成が適用され、回転係合
構成については図３の構成が適用される。Regarding the illustration of the second embodiment, the rotary engagement type (indicated by a dash in the reference numeral) is not particularly shown but is obvious from FIG. 6 and the like showing the slide engagement type. That is, the male screw part 29 and the rod receiving body 2
The configuration of FIG. 6 is applied to the connection of 3, 23 ', and the configuration of FIG. 3 is applied to the rotational engagement configuration.
【００２０】このように構成された本発明に係るロッド
結合装置は、例えば椎体Ｖにおねじ部１９…を螺入して
インプラント１１を植設し、各インプラント１１…を所
定の位置関係をもって配列するべくロッド１０と結合す
るために使用される。図７参照。上記結合において、一
体構造のおねじ部１９を有する実施例の場合、ロッド受
け部１２、１２′にロッド１０をセットしたのち係合子
１５、１５′を係合部１４、１４′に係合させ、止めね
じ１７の緊締によりロッド１０を固定することができ
る。図２（ａ）及び図３（ａ）。別体構造のおねじ部２
９を有する実施例２の場合にはおねじ部２９をロッド受
け体２３、２３′に差し込んでからロッド１０をロッド
受け部２２、２２′にセットし、あとは実施例１と同様
にロッド１０を固定する。図４（ａ）。In the rod connecting device according to the present invention thus configured, for example, the screw portions 19 are screwed into the vertebral body V to implant the implants 11, and the implants 11 are placed in a predetermined positional relationship. Used to couple with rod 10 to align. See FIG. In the above-described connection, in the case of the embodiment having the externally threaded portion 19, the rod 10 is set in the rod receiving portions 12, 12 ', and then the engaging members 15, 15' are engaged with the engaging portions 14, 14 '. The rod 10 can be fixed by tightening the set screw 17. FIG. 2 (a) and FIG. 3 (a). Male screw part 2 with separate structure
In the case of the second embodiment having the ninth embodiment, the male thread portion 29 is inserted into the rod receiving members 23 and 23 ', and then the rod 10 is set in the rod receiving portions 22 and 22'. Fix it. FIG. 4 (a).
【００２１】固定に当たり、本発明の装置ではインプラ
ント１１の植設後、ただ１個の止めねじ１７を締め着け
ることによってロッド１０の固定が行なえる。その締着
力は係合部分とロッド１０に加わり、係合部分では４５
度内外の傾斜面のずれによるロッド受け部１２、１２″
の両側部のロッド締め付け力がロッド１０に対して働
く。また止めねじ１７の先端はロッド１０を直かに締め
付けるので、ロッド１０は理想的な条件で固定される。
複数のインプラント１１…とロッド１０との結合の際、
各インプラント１１…のロッド受け部１２、１２′…の
位置を一直線にそろえるのは難しくロッド１０の適当な
曲げ加工等の調整が必要となるが、ロッド受け体２３、
２３′を可動とした本発明の実施例２によればこの調整
がより容易なものとなる。For fixing, the rod 10 can be fixed by tightening only one set screw 17 after the implantation of the implant 11 in the device of the present invention. The tightening force is applied to the engagement portion and the rod 10, and at the engagement portion, 45
Rod receiving parts 12, 12 "
The rod clamping force acts on the rod 10 on both sides. Since the tip of the set screw 17 directly tightens the rod 10, the rod 10 is fixed under ideal conditions.
When connecting the plurality of implants 11 to the rod 10,
It is difficult to align the positions of the rod receiving portions 12, 12 ′ of each implant 11 in a straight line, and it is necessary to adjust the rod 10 by appropriate bending or the like.
According to the second embodiment of the present invention in which 23 'is movable, this adjustment becomes easier.
【００２２】[0022]
【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、構成部品の個数を削減するととも
に、止めねじの締着力を傾斜面とロッドのみに作用さ
せ、傾斜面の分力によってロッドを左右から締め付け、
その上で止めねじの先端でロッドをロッド受け部に締め
つけられるので、より完全な固定となり、また１個の止
めねじによってロッドのより完全な固定が達成されるの
で取り付けに要する仕事量も時間も少なくて済む等顕著
な効果を奏する。Since the present invention is constructed and operates as described above, the number of components is reduced, and the fastening force of the set screw is applied only to the inclined surface and the rod, and the component force of the inclined surface is reduced. Tighten the rod from left and right,
Then, the rod is fastened to the rod receiving part by the end of the set screw, so that the rod is more completely fixed. Further, since the rod is more completely fixed by one set screw, the work and the time required for the installation are reduced. It has a remarkable effect, such as requiring less.
【図１】本発明に係るロッド結合装置の実施例１を示す
斜視図。FIG. 1 is a perspective view showing a first embodiment of a rod connecting device according to the present invention.
【図２】（ａ）図１の例１の組み合わせ状態を示す斜視
図。 （ｂ）図１の例１の係合子の平面図。 （ｃ）図１の例１の係合子の断面図。 （ｄ）図１の例１のロッド受け部の平面図。 （ｅ）図１の例１のロッド受け部の断面図。FIG. 2A is a perspective view showing a combined state of Example 1 of FIG. 1; (B) The top view of the engaging element of the example 1 of FIG. (C) Sectional drawing of the engaging element of the example 1 of FIG. (D) The top view of the rod receiving part of Example 1 of FIG. (E) Sectional drawing of the rod receiving part of Example 1 of FIG.
【図３】（ａ）図１の例２の組み合わせ状態を示す斜視
図。 （ｂ）図１の例２の係合子の平面図。 （ｃ）図１の例２の係合子の断面図。 （ｄ）図１の例２のロッド受け部の平面図。 （ｅ）図１の例２のロッド受け部の断面図。FIG. 3A is a perspective view showing a combined state of Example 2 in FIG. 1; (B) The top view of the engaging element of the example 2 of FIG. (C) Sectional drawing of the engaging element of the example 2 of FIG. (D) The top view of the rod receiving part of Example 2 of FIG. (E) Sectional drawing of the rod receiving part of the example 2 of FIG.
【図４】同じく本発明の実施例２を示す斜視図。FIG. 4 is a perspective view showing a second embodiment of the present invention.
【図５】（ａ）図４の例１の組み合わせ状態を示す斜視
図。 （ｂ）図４の例２の組み合わせ状態を示す斜視図。 （ｃ）図１の例１の組み合わせ状態を示す断面図。FIG. 5A is a perspective view showing a combined state of Example 1 of FIG. 4; FIG. 5B is a perspective view showing a combination state of Example 2 in FIG. (C) Sectional drawing which shows the combination state of Example 1 of FIG.
【図６】（ａ）図４の例２の係合子の平面図。 （ｂ）図４の例２の係合子の断面図。 （ｃ）図４の例２のロッド受け部の平面図。 （ｄ）図１の例２のロッド受け部の断面図。6 (a) is a plan view of the engagement element of Example 2 in FIG. 4. FIG. (B) Sectional drawing of the engaging element of the example 2 of FIG. (C) The top view of the rod receiving part of the example 2 of FIG. (D) Sectional drawing of the rod receiving part of the example 2 of FIG.
【図７】本発明のロッド結合装置の実施例を示す斜視
図。FIG. 7 is a perspective view showing an embodiment of the rod connecting device of the present invention.
Claims (4)
インプラントに沿って配置されるロッドとを結合するた
めの装置であって、ロッドを受け支えるロッド受け部を
有するロッド受け体と、ロッド受け体の係合部に係合可
能な係合子と、ロッド受け部に受け支えられているロッ
ドを締め付けるために、係合子に設けためねじ部にねじ
込まれる止めねじとからなり、係合子とロッド受け体と
は傾斜面にて係合可能とし、止めねじの締め付けによっ
て傾斜面にずれが生じ、ロッドに加わる締着力が増すよ
うに構成されていることを特徴とするロッド結合装置。1. An apparatus for connecting an implant to be implanted in a bone and a rod arranged along the plurality of implants, the rod receiving body having a rod receiving portion for receiving the rod, and a rod. An engaging element engageable with the engaging portion of the receiving body, and a set screw screwed into a screw portion to be provided on the engaging element for tightening the rod supported by the rod receiving portion. The receiver can be engaged with the inclined surface , and the set screw can be tightened.
The rod coupling device is characterized in that the inclined surface is displaced to increase the tightening force applied to the rod.
軸に対して４５度を中心とする＋−数度の範囲である請
求項１記載のロッド結合装置。2. The rod coupling device according to claim 1, wherein the degree of inclination of the inclined surface is in a range of + to several degrees around 45 degrees with respect to the axis of the implant.
てスライドさせるかまたは回転させてロッド受け体と組
み合わされる請求項１または２記載のロッド結合装置。3. The rod coupling device according to claim 1, wherein the engaging element is combined with the rod receiving body by sliding or rotating the engaging leg by fitting the engaging leg from the end to the engaging portion.
造であり、球面継手によって傾斜可能に構成されている
請求項１記載のロッド結合装置。4. The rod connecting device according to claim 1, wherein the implant and the rod receiving body are separate structures, and are configured to be tiltable by a spherical joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11138717A JP3061617B1 (en) | 1999-05-19 | 1999-05-19 | Rod coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11138717A JP3061617B1 (en) | 1999-05-19 | 1999-05-19 | Rod coupling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP3061617B1 true JP3061617B1 (en) | 2000-07-10 |
| JP2000325359A JP2000325359A (en) | 2000-11-28 |
Family
ID=15228501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11138717A Expired - Fee Related JP3061617B1 (en) | 1999-05-19 | 1999-05-19 | Rod coupling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3061617B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002125980A (en) * | 2000-09-18 | 2002-05-08 | Sulzer Orthopedics Ltd | Screw of pedicle of thoracic vertebra for intervertebral support element |
| JP2002136524A (en) * | 2000-09-22 | 2002-05-14 | Depuy Acromed Inc | Lock cap anchor assembly for orthopaedic fixation |
| EP2826431A3 (en) * | 2003-12-16 | 2015-05-06 | Medos International Sarl | Bone anchor assemblies |
| US11419642B2 (en) | 2003-12-16 | 2022-08-23 | Medos International Sarl | Percutaneous access devices and bone anchor assemblies |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7935135B2 (en) * | 2004-06-09 | 2011-05-03 | Zimmer Spine, Inc. | Spinal fixation device |
| JP5580530B2 (en) * | 2005-06-07 | 2014-08-27 | グローバス メディカル インコーポレイティッド | Multi screw |
| FR2896981B1 (en) * | 2006-02-08 | 2008-12-26 | Prosteel Sas Soc Par Actions S | PROSTHETIC SPINAL IMPLANT FOR HOLDING A ROD OF A POSTERIOR SPINAL OSTEOSYNTHESIS SYSTEM. |
| KR101037206B1 (en) | 2010-09-07 | 2011-05-26 | 주식회사 지에스메디칼 | Iliac screw and insertion instrument for the same |
| US8491640B1 (en) * | 2012-07-02 | 2013-07-23 | James C. Robinson | Bone screw coupling assembly |
-
1999
- 1999-05-19 JP JP11138717A patent/JP3061617B1/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002125980A (en) * | 2000-09-18 | 2002-05-08 | Sulzer Orthopedics Ltd | Screw of pedicle of thoracic vertebra for intervertebral support element |
| JP2002136524A (en) * | 2000-09-22 | 2002-05-14 | Depuy Acromed Inc | Lock cap anchor assembly for orthopaedic fixation |
| US9795415B2 (en) | 2000-09-22 | 2017-10-24 | DePuy Synthes Products, Inc. | Locking cap assembly for spinal fixation instrumentation |
| EP2826431A3 (en) * | 2003-12-16 | 2015-05-06 | Medos International Sarl | Bone anchor assemblies |
| US10299839B2 (en) | 2003-12-16 | 2019-05-28 | Medos International Sárl | Percutaneous access devices and bone anchor assemblies |
| US11419642B2 (en) | 2003-12-16 | 2022-08-23 | Medos International Sarl | Percutaneous access devices and bone anchor assemblies |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000325359A (en) | 2000-11-28 |
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