JPS6155977B2 - - Google Patents
Info
- Publication number
- JPS6155977B2 JPS6155977B2 JP60027525A JP2752585A JPS6155977B2 JP S6155977 B2 JPS6155977 B2 JP S6155977B2 JP 60027525 A JP60027525 A JP 60027525A JP 2752585 A JP2752585 A JP 2752585A JP S6155977 B2 JPS6155977 B2 JP S6155977B2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- threaded
- metal rod
- clamps
- clamp
- 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
Links
- 239000002184 metal Substances 0.000 claims description 28
- 210000000988 bone and bone Anatomy 0.000 claims description 15
- 238000005553 drilling Methods 0.000 description 3
- 210000001872 metatarsal bone Anatomy 0.000 description 3
- 241000289690 Xenarthra Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 206010061159 Foot deformity Diseases 0.000 description 1
- 208000001963 Hallux Valgus Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000000610 foot bone Anatomy 0.000 description 1
- 210000004349 growth plate Anatomy 0.000 description 1
- 210000002411 hand bone Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 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
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Prostheses (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は整形外科固定具、更に詳しくいえ
ば、指骨、中手骨及び中足骨等の小骨を固定する
ための小型外固定具に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to orthopedic fixators, and more particularly to a small external fixator for fixing small bones such as phalanges, metacarpals, and metatarsals.
従来の外固定具としては、特に大骨の固定用と
して、種々の固定状況下でその機能を発揮すべく
構成された一側外固定具がアメリカ特許第
4312336号に開示されている。しかしながら、こ
の外固定具は構造が複雑で、かつ、大型であるた
め手や足の小骨固定用には不向きなものであつ
た。また、この特許外固定具はその構造及び強度
上の問題から小型化、簡略化を図るのが難しく、
骨折や損傷した小骨の固定や伸長処置には対応で
きないものであつた。
As a conventional external fixation device, a unilateral external fixation device designed to perform its function under various fixation situations, especially for fixation of large bones, was disclosed in the U.S. Patent No.
It is disclosed in No. 4312336. However, this external fixator has a complicated structure and is large, so it is not suitable for fixing small bones of hands and feet. In addition, it is difficult to miniaturize and simplify this non-patented fixture due to its structure and strength issues.
This method was not suitable for fixing or lengthening fractures or damaged ossicles.
この発明は上記従来技術に鑑み、小骨を同一平
面上に位置する複数のピンで一側支持すると共
に、骨の伸長処置時にもこのピンの位置関係、即
ち骨のピンによる固定箇所を同一平面上に保持す
ることができ、骨端軟骨分離、骨構成物質の損
傷、中手骨の関接骨折箇所の合成時における骨幹
伸長や、母趾外反、中足骨内反時における指の関
接固定及び軸偏向等の処置に適した小型外固定具
を提供することにある。
In view of the above-mentioned prior art, the present invention supports ossicles on one side with a plurality of pins located on the same plane, and also maintains the positional relationship of the pins during bone lengthening treatment, that is, the fixation location of the bone with the pins on the same plane. It can be used to prevent epiphyseal cartilage separation, damage to bone constituent materials, diaphyseal elongation during synthesis of metacarpal joint fractures, and finger articulation during hallux valgus and metatarsal inversion. The object of the present invention is to provide a small external fixation device suitable for fixation, axial deflection, and other treatments.
上記目的を達成すべく、この発明の小型外固定
具は、２つのクランプを具備する小型の金属棒な
いしは金属枠から構成している。骨固定用の複数
のピンは２つのクランプにより同一平面上に位置
させる。各クランプを１対のジヨーと締付けねじ
から構成し、少なくとも１つのクランプのジヨー
には、金属棒ないしは金属枠に穿設した長孔内に
挿入する螺進部を連設すると共に、金属棒側面に
接当する摺動面を形成している。螺進部にねじ穴
を形成し、このねじ穴と螺合するねじ付きロツド
を長孔内に貫挿している。ねじ付きロツドの軸は
クランプの締付けねじの軸と直交配置させてい
る。
In order to achieve the above object, the small external fixture of the present invention is composed of a small metal rod or metal frame provided with two clamps. A plurality of pins for bone fixation are positioned on the same plane by two clamps. Each clamp is composed of a pair of jaws and a tightening screw, and the jaw of at least one clamp is provided with a threaded part to be inserted into a long hole drilled in a metal rod or metal frame, and a side surface of the metal rod. It forms a sliding surface that comes into contact with. A screw hole is formed in the threaded portion, and a threaded rod that is threaded into the screw hole is inserted into the elongated hole. The axis of the threaded rod is arranged perpendicular to the axis of the tightening screw of the clamp.
〔作用〕
ねじ付きロツドを回動すると、螺進部はねじ付
きロツドの軸方向に螺進移動するが、この螺進部
を連設したジヨーは金属棒側面に接当する摺動面
を有するため回動されることはなく、金属棒側面
に沿つてロツドの軸方向へ摺動移動する。したが
つて、このジヨーを構成要素とする可動クランプ
は、ロツドの回動によりロツド軸方向に移動し、
クランプに保持される骨支持用のピンもロツド軸
方向に平行移動する。このため、骨を伸長すべく
ねじ付きロツドを回動し、２つのクランプを離反
方向に移動させた場合にも、両クランプに挾持さ
れるピンはロツド軸に平行する同一面上に保持さ
れる。[Function] When the threaded rod is rotated, the threaded part moves in the axial direction of the threaded rod, but the joint with this threaded part connected has a sliding surface that comes into contact with the side surface of the metal rod. Therefore, it does not rotate, but slides along the side of the metal rod in the axial direction of the rod. Therefore, the movable clamp that includes this jaw moves in the rod axis direction as the rod rotates.
A bone support pin held by the clamp also moves in parallel in the rod axis direction. Therefore, even when the threaded rod is rotated to lengthen the bone and the two clamps are moved apart, the pins held by both clamps remain on the same plane parallel to the rod axis. .
この発明の小型外固定具によれば、小型である
ため両クランプに挾持したピンで中手骨等の小骨
を支持固定することができ、また骨を伸長する際
には、ねじ付きロツドを回動するといつた容易な
操作で正確な処理を行なうことができる。
According to the small external fixator of this invention, since it is small, it is possible to support and fix small bones such as metacarpals with the pins held in both clamps, and when elongating the bone, the threaded rod can be rotated. Accurate processing can be performed with easy operation such as moving.
さらに小型であることは患部の重量負担を軽減
し、治療効果を増大させる。 Furthermore, the small size reduces the weight burden on the affected area and increases the therapeutic effect.
次に、図面を参照しつつこの発明の一実施例を
詳細に説明する。
Next, one embodiment of the present invention will be described in detail with reference to the drawings.
第１図及び第２図において、この発明の小型外
固定具はほぼ平行六面体形状の金属棒３を有す
る。金属棒３の一端には突出部が連設されてお
り、この突出部よりなる固定ジヨー４と、このジ
ヨー４にネジ固締可能なジヨー６とで固定クラン
プ５を構成している。前記１対のジヨー４，６の
対向面にはそれぞれ、断面円弧状の溝が２本平行
して離間形成されており、これら２組の対向する
溝の間に２本のピン８の柄部分がそれぞれはめら
れる。ピン８の柄部分は円柱形状で、固定クラン
プ５を締付けネジ７で締め付けることにより両ピ
ン８の柄部分が１対のジヨー４，６により平行位
置に挾持固定される。 1 and 2, the small external fixator of the present invention has a metal rod 3 having a substantially parallelepiped shape. A protrusion is connected to one end of the metal rod 3, and a fixed jaw 4 made of this protrusion and a jaw 6 that can be screwed to this jaw 4 constitute a fixed clamp 5. Two grooves each having an arcuate cross section are formed in parallel and spaced apart on the opposing surfaces of the pair of jaws 4 and 6, and the handle portions of the two pins 8 are inserted between these two sets of opposing grooves. are fitted respectively. The handles of the pins 8 have a cylindrical shape, and by tightening the fixing clamp 5 with the tightening screw 7, the handles of both pins 8 are clamped and fixed in parallel positions by the pair of jaws 4 and 6.
金属棒３には更にもう１つ、金属棒３に沿つて
移動可能な可動クランプ９が設けられている。こ
のクランプ９は一対のジヨー１０，１１と、両者
１０，１１を固締するネジ７′とから成り、前記
クランプ５と同様、ジヨー１０，１１の対向面に
は２本のピン８の柄部分を挾持すべく円弧状の溝
が平行して形成されている。 The metal rod 3 is further provided with a movable clamp 9 that is movable along the metal rod 3. This clamp 9 consists of a pair of jaws 10, 11 and a screw 7' for fixing both 10, 11. Similar to the clamp 5, the handles of two pins 8 are attached to the opposing surfaces of the jaws 10, 11. Arc-shaped grooves are formed in parallel to hold the .
金属棒３には該棒３の長手方向に伸長する長孔
１３が穿設されており、この長孔１３内をガイド
されるガイドブロツク１２が前記ジヨー１０に連
設されている。ガイドブロツク１２にはねじ穴が
設けられており、このねじ穴は長孔１３内を長手
方向に伸長するねじ付きロツド１４に外嵌螺合さ
れている。このねじ付きロツド１４は金属棒３の
上下端部にその上下端が軸受されており、下端側
にはレンチの係合穴が設けられている。ねじ付き
ロツド１４の上端部には円周方向に溝が形成され
ており、この溝に係合する横ピン１４′が固定ジ
ヨー４内に設けられている。したがつて、ねじ付
きロツド１４は回転自在にその軸方向へのずれが
防止される。前記ジヨー１０とガイドブロツク１
２の連設部分には段部が設けられており、この段
部に金属棒３の側面上を摺動する摺動面１５が形
成されている。このため、ねじ付きロツド１４の
下端側の係合穴へレンチをはめ廻すと、ガイドブ
ロツク１２及び可動クランプ９がねじ付きロツド
１４の軸方向に螺進移動されるが、上記摺動面１
５と金属棒側面との接当により可動クランプ９は
回り止めされる。したがつて、レンチ操作により
可動クランプ９を上下移動調節する際にも、両ク
ランプ５，９に挾持される４本のピン８の位置は
常時同一平面上に保持される。 The metal rod 3 has a long hole 13 extending in the longitudinal direction of the rod 3, and a guide block 12 guided within the long hole 13 is connected to the jaw 10. The guide block 12 is provided with a screw hole into which a threaded rod 14 extending longitudinally within the elongated hole 13 is externally screwed. This threaded rod 14 has its upper and lower ends bearing on the upper and lower ends of the metal rod 3, and a wrench engagement hole is provided at the lower end. A groove is formed in the upper end of the threaded rod 14 in the circumferential direction, and a transverse pin 14' is provided in the stationary jaw 4, which engages this groove. Therefore, the threaded rod 14 is rotatably prevented from shifting in the axial direction. Said jaw 10 and guide block 1
A step portion is provided in the continuous portion of the metal rod 2, and a sliding surface 15 that slides on the side surface of the metal rod 3 is formed in this step portion. Therefore, when a wrench is inserted into the engagement hole on the lower end side of the threaded rod 14, the guide block 12 and movable clamp 9 are moved in the axial direction of the threaded rod 14.
The movable clamp 9 is prevented from rotating due to the contact between the movable clamp 5 and the side surface of the metal rod. Therefore, even when the movable clamp 9 is adjusted up and down by wrench operation, the positions of the four pins 8 held by both clamps 5 and 9 are always maintained on the same plane.
この発明の一実施装置を、長さ８cm、幅1.2
cm、厚さ0.8cmの金属棒から試作した。ブロツク
１２を安定してガイドすべく、金属棒には断面
0.8cm平方の長孔を穿設した。各クランプ５，９
には２本のピン８を1.2cm離間して挾持させた。
ピン８には、2.5mm径の柄部分を有する40×1.5mm
又は50×1.8mm等の規格寸法のタツピンねじを適
宜用いた。ねじ付きロツド１４のねじピツチは
20／cmで、可動クランプ９の螺進移動調節距離は
約４cmであつた。この試作外固定具を(a)骨幹伸
長、(b)関接分離、(c)骨構成物質の損傷、(d)非関接
骨折箇所の合成等の臨床あるいは外科分野におけ
る、指骨、中手骨、中足骨等の一側固定、伸長、
などに用いたところ、十分良好な結果が得られ、
小骨用の外固定具として外科医の信頼に耐え得る
ものであることが実証された。 A device for implementing this invention has a length of 8 cm and a width of 1.2 cm.
A prototype was made from a metal rod with a thickness of 0.8 cm. In order to guide the block 12 stably, the metal rod has a cross section.
A 0.8 cm square long hole was drilled. Each clamp 5,9
Two pins 8 were held at a distance of 1.2 cm.
Pin 8 has a 40x1.5mm handle with a 2.5mm diameter.
Alternatively, tatu pin screws with standard dimensions such as 50 x 1.8 mm were used as appropriate. The thread pitch of the threaded rod 14 is
20/cm, the adjustment distance of the spiral movement of the movable clamp 9 was approximately 4 cm. This prototype external fixation device can be used in clinical and surgical fields such as (a) diaphyseal elongation, (b) articular separation, (c) damage to bone constituent materials, and (d) synthesis of non-union fractures of phalanges and metacarpals. Unilateral fixation and elongation of bones, metatarsals, etc.
When used for such purposes, sufficiently good results were obtained.
It has been demonstrated that this device can be trusted by surgeons as an external fixation device for ossicles.
上記説明からも判るように、この発明の外固定
具においてはタツピンねじ８を使用しているの
で、骨等に穴をあけるといつた前作業を省略でき
る。また、穴あけが望ましいような場合には、タ
ツピンねじ８を外した状態で両クランプ５，９を
適当間隔にセツトすれば、クランプのピン溝を穴
あけ作業時の精密ジグ穴として使用することもで
きる。 As can be seen from the above description, since the external fixator of the present invention uses the tuft pin screw 8, preliminary work such as drilling a hole in the bone or the like can be omitted. In addition, if drilling is desired, by removing the tatu pin screw 8 and setting both clamps 5 and 9 at appropriate intervals, the pin groove of the clamp can be used as a precision jig hole during drilling work. .
上記実施例はこの発明の好ましい一実施例であ
つて、種々の変更はこの発明の範囲にもとること
なくできるものである。例えば、安全性の面か
ら、ねじ付きロツド１４の不意の回動を避けるべ
く、このロツド１４の一端側に止めねじ等の回り
止め手段を設けることもできる。また、第３図に
示すように、両クランプ５，９を共に、長孔１４
に沿つてロツド軸方向への移動可能な可動クラン
プに構成してもよい。この場合には、ねじ付きロ
ツド１４の上半部と下半部のねじ切り方向を逆に
すると共に、両クランプ５，９のブロツク１２の
ねじ穴も相応して逆ねじ形成し、ロツド１４の一
方向への回動操作により両クランプ５，９が接近
又は離反方向に螺進移動するように構成すること
が好ましい。こうすれば、第３図からも明らかな
ように、ロツド１４の両端にレンチ係合穴を形成
し、金属棒の上下いずれの側からもレンチ操作が
できるようになる。更には又、第４図及び第５図
に示す如くクランプ構成を変更すればピン８の角
度調節も可能となる。第４図においては、固定ク
ランプ５の両ジヨー４，６間に、ピン８の係合溝
を設けた中間ジヨーパツド又は中間座金４′を、
ねじ７に回転自在に遊嵌させている。この構成に
よれば、ジヨー６と中間座金４′からなるピン保
持部を、固定ジヨー４に関して回動することがで
き、ピン８のロツド軸と垂直な軸周りの任意の角
度調節を行なうことが可能となる。第５図におい
ては、可動クランプ９の両ジヨー１０，１１間
に、上記固定クランプ５同様中間ジヨーパツド又
は中間座金１２′が介装されている。したがつ
て、ピン保持部がブロツク１２と中間座金１２′
との間の摺動面１７に関して回動することが可能
となり、この場合も、可動クランプ９に保持され
るピン８の角度調節を適宜行なうことができる。 The above embodiment is a preferred embodiment of the present invention, and various changes can be made without departing from the scope of the present invention. For example, from the standpoint of safety, a locking means such as a set screw may be provided at one end of the threaded rod 14 in order to prevent it from rotating unexpectedly. In addition, as shown in FIG.
The clamp may be configured as a movable clamp that is movable along the rod axis. In this case, the threading directions of the upper and lower halves of the threaded rod 14 are reversed, and the threaded holes in the blocks 12 of both clamps 5 and 9 are also formed with corresponding reverse threads, so that one part of the rod 14 can be threaded in the opposite direction. It is preferable that both clamps 5 and 9 be configured to spirally move toward or away from each other by rotation in the direction shown in FIG. In this way, as is clear from FIG. 3, wrench engagement holes are formed at both ends of the rod 14, and the wrench can be operated from either the top or bottom of the metal rod. Furthermore, the angle of the pin 8 can be adjusted by changing the clamp configuration as shown in FIGS. 4 and 5. In FIG. 4, an intermediate jaw pad or intermediate washer 4' having an engagement groove for a pin 8 is installed between both jaws 4 and 6 of the fixed clamp 5.
It is loosely fitted into the screw 7 so that it can rotate freely. According to this configuration, the pin holding part consisting of the jaw 6 and the intermediate washer 4' can be rotated with respect to the fixed jaw 4, and the angle can be adjusted at any angle around an axis perpendicular to the rod axis of the pin 8. It becomes possible. In FIG. 5, an intermediate jaw pad or intermediate washer 12' is interposed between the jaws 10 and 11 of the movable clamp 9, similar to the fixed clamp 5 described above. Therefore, the pin holding portion is connected to the block 12 and the intermediate washer 12'.
It becomes possible to rotate about the sliding surface 17 between the movable clamp 9, and in this case, the angle of the pin 8 held by the movable clamp 9 can be adjusted as appropriate.
第１図はこの発明の一実施例である小型外固定
具の平面図、第２図は第１図の線２―２について
の断面図、第３図は２つの可動クランプを有する
外固定具の断面図、第４図は両ジヨー間に溝付き
座金を介挿した固定クランプの断面図、第５図は
両ジヨー間に溝付き座金を介挿した可動クランプ
の断面図である。
３…金属棒、４，６，１０，１１…ジヨー、
５，９…クランプ、７，７′…締付けねじ、８…
ピン、１２…ガイドブツク、１３…長孔、１４…
ねじ付きロツド、１５，１６，１７…摺動面。
Fig. 1 is a plan view of a small external fixing device according to an embodiment of the present invention, Fig. 2 is a sectional view taken along line 2--2 in Fig. 1, and Fig. 3 is an external fixing device having two movable clamps. FIG. 4 is a sectional view of a fixed clamp with a grooved washer inserted between both jaws, and FIG. 5 is a sectional view of a movable clamp with a grooved washer inserted between both jaws. 3...metal rod, 4,6,10,11...jiyo,
5, 9...Clamp, 7,7'...Tightening screw, 8...
Pin, 12... Guide book, 13... Long hole, 14...
Threaded rod, 15, 16, 17...Sliding surface.
Claims (1)
用のクランプを２つ具備する平行六面体形の金属
棒に長孔を穿設し、該長孔内にねじ付きロツドを
回転自在に延設し、前記２つのクランプのうちの
少なくとも１つを可動クランプとすべく、クラン
プの１つのジヨーに、前記ねじ付きロツドに螺合
する螺進部を連設すると共に、前記金属棒の側面
に接当する摺接面を形成し、ねじ付きロツドの回
動により、クランプがロツド軸周りに回転するこ
となくロツド軸方向へ螺進移動するように構成し
たことを特徴とする骨伸長用の小型外固定具。 ２ 可動クランプのピン保持部が、ねじ付きロツ
ドの軸に垂直な回転軸周りに回転可能であると共
に、任意の回転位置における固定が可能であるこ
とを特徴とする特許請求の範囲第１項記載の小型
外固定具。 ３ 固定クランプのピン保持部が、ねじ付きロツ
ドの軸に垂直な回転軸周りに回転可能であると共
に、任意の回転位置における固定が可能であるこ
とを特徴とする特許請求の範囲第１項記載の小型
外固定具。 ４ ２つのクランプに保持されるピンの軸が同一
平面上に位置すべく構成されていることを特徴と
する特許請求の範囲第１項記載の小型外固定具。 ５ 複数のピンを保持する第１及び第２クランプ
を具備する細長金属棒に、該金属棒の平行対向側
面を貫通すると共に、金属棒の上端部から下端部
まで伸びる長孔を穿設し、親ねじを前記金属棒の
上下端部に回転自在に軸受けし、前記２つのクラ
ンプのうちの少なくとも１つのクランプのジヨー
に、前記長孔と同一の幅を有すると共に、前記親
ねじに螺合するねじ穴を設けたブロツクを突設
し、かつ、前記ジヨーに金属棒側面に接当する摺
動面を形成したことを特徴とする骨伸長用の小型
外固定具。 ６ ２つのクランプのジヨーにそれぞれ、長孔と
同一の幅を有するブロツクを突設すると共に金属
棒側面との摺動面を形成し、該両ブロツクにねじ
切り方向の異なるねじ穴を穿設し、これら両ブロ
ツクのねじ穴に螺合するねじ部を親ねじの上半部
及び下半部にそれぞれ分割形成したことを特徴と
する特許請求の範囲第５項記載の小型外固定具。[Claims] 1. A long hole is bored in a parallelepiped-shaped metal rod equipped with two pin-holding clamps consisting of a pair of jaws and a tightening screw, and a threaded rod is rotated into the long hole. In order to extend freely and make at least one of the two clamps a movable clamp, one jaw of the clamp is provided with a threaded portion that is threaded into the threaded rod, and the metal rod A bone elongation device characterized by forming a sliding surface that comes into contact with the side surface of the bone, and configured such that when the threaded rod rotates, the clamp moves in the direction of the rod axis without rotating around the rod axis. A small external fixture for use. 2. Claim 1, characterized in that the pin holding portion of the movable clamp is rotatable around a rotation axis perpendicular to the axis of the threaded rod and can be fixed at any rotational position. Small external fixture. 3. The pin holding portion of the fixing clamp is rotatable around a rotation axis perpendicular to the axis of the threaded rod, and can be fixed at any rotational position. Small external fixture. 4. The small external fixture according to claim 1, wherein the axes of the pins held by the two clamps are located on the same plane. 5. An elongated metal rod equipped with first and second clamps that hold a plurality of pins is provided with an elongated hole that passes through parallel opposing sides of the metal rod and extends from the upper end to the lower end of the metal rod, A lead screw is rotatably supported on the upper and lower ends of the metal rod, and has the same width as the elongated hole and is screwed into a jaw of at least one of the two clamps, and is screwed into the lead screw. 1. A small external fixation device for bone lengthening, characterized in that a block with a screw hole is provided in a protruding manner, and a sliding surface is formed on the jaw for contacting a side surface of a metal rod. 6. Protruding blocks having the same width as the elongated holes on the jaws of the two clamps and forming a sliding surface with the side surface of the metal rod, and screw holes with different threading directions in both blocks, 6. The small external fixing device according to claim 5, wherein the threaded portions to be screwed into the threaded holes of both blocks are formed separately into an upper half and a lower half of the lead screw.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT84909/84A IT1183736B (en) | 1984-02-13 | 1984-02-13 | EXTERNAL MINI-FIXER, PARTICULARLY SUITABLE FOR USE AS AN EXTENDER |
| IT84909A84 | 1984-02-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60232151A JPS60232151A (en) | 1985-11-18 |
| JPS6155977B2 true JPS6155977B2 (en) | 1986-11-29 |
Family
ID=11325575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60027525A Granted JPS60232151A (en) | 1984-02-13 | 1985-02-13 | Small external fixing tool |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS60232151A (en) |
| AT (1) | AT391266B (en) |
| AU (1) | AU567651B2 (en) |
| BE (1) | BE901716A (en) |
| CH (1) | CH666399A5 (en) |
| DE (1) | DE3504616A1 (en) |
| DK (1) | DK159953C (en) |
| ES (1) | ES8605967A1 (en) |
| FR (1) | FR2559380B1 (en) |
| GB (1) | GB2154144B (en) |
| IT (1) | IT1183736B (en) |
| LU (1) | LU85769A1 (en) |
| NL (1) | NL192191C (en) |
| NO (1) | NO850540L (en) |
| PT (1) | PT79947A (en) |
| SE (1) | SE8500624L (en) |
| ZA (1) | ZA851002B (en) |
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| US2628843A (en) * | 1946-10-09 | 1953-02-17 | Alfred E Comstock | Automatic phonograph |
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| GB8504539D0 (en) * | 1985-02-21 | 1985-03-27 | Thackray C F Ltd | Bone fixation system |
| US4978348A (en) * | 1988-05-26 | 1990-12-18 | Ilizarov Gavriil A | Compression-distraction apparatus for osteosynthesis |
| DE8807909U1 (en) * | 1988-06-18 | 1988-10-20 | Howmedica GmbH, 2314 Schönkirchen | Bone plate, especially small bone plate |
| FI901465A7 (en) * | 1988-07-26 | 1990-03-23 | Vses Kurgansky Nauchny Tsentr | Traction device for connecting short tubular bones |
| CH678485A5 (en) * | 1988-12-15 | 1991-09-30 | Jaquet Orthopedie | |
| RU2012273C1 (en) * | 1990-08-08 | 1994-05-15 | Научно-исследовательский институт технологии | Device for fixing fractured osteal fragments |
| FR2705881A1 (en) * | 1993-06-01 | 1994-12-09 | Hardy Jean Marie | Support rail for filling in loss of bone substance |
| GB2280608A (en) * | 1993-08-05 | 1995-02-08 | Hi Shear Fasteners Europ Ltd | External bone fixator |
| US5571103A (en) * | 1994-10-18 | 1996-11-05 | Bailey; Kirk J. | Method for the fixation of bone |
| DE29515007U1 (en) * | 1995-09-19 | 1995-12-07 | Pennig, Dietmar, Dr.med., 50935 Köln | Osteosynthesis tools |
| FR2753077B1 (en) * | 1996-09-12 | 1998-11-20 | Provis Sa | DIGITAL EXTERNAL STRETCHING APPARATUS |
| IT1298413B1 (en) * | 1997-05-21 | 2000-01-05 | Orthofix Srl | EXTERNAL MINIFIXER DEVICE FOR SMALL BONE TREATMENT |
| RU2137437C1 (en) * | 1997-11-18 | 1999-09-20 | Обухов Игорь Азарьевич | Universal apparatus for external fixation of hand |
| GB9815530D0 (en) * | 1998-07-16 | 1998-09-16 | Atkins Roger M | Orthopaedic device |
| RU2151565C1 (en) * | 1998-11-16 | 2000-06-27 | Лапцевич Виктор Никифорович | Compression-distraction device |
| FR2787697B1 (en) | 1998-12-29 | 2001-06-15 | France Etat | MONOLATERAL ORTHOPEDIC EXTERNAL FIXATION DEVICE FOR BONE FRACTURE IMMOBILIZATION |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH579438A5 (en) * | 1974-05-22 | 1976-09-15 | Jaquet Henri | |
| FR2274266A1 (en) * | 1974-06-12 | 1976-01-09 | Judet Robert | Progressive bone extension instrument - telescopic rods coupled by screw with pins engaging with bone parts |
| ES253459Y (en) * | 1978-11-10 | 1982-04-16 | EXTERNAL CLINICAL FIXER, OF HIGH STABILITY, TO REDUCE FRACTURES. | |
| IT1183735B (en) * | 1984-02-13 | 1987-10-22 | Orthofix Srl | ARTICULATED EXTERNAL MINIFIXER |
-
1984
- 1984-02-13 IT IT84909/84A patent/IT1183736B/en active
-
1985
- 1985-02-07 AU AU38594/85A patent/AU567651B2/en not_active Expired
- 1985-02-11 ZA ZA851002A patent/ZA851002B/en unknown
- 1985-02-11 GB GB08503461A patent/GB2154144B/en not_active Expired
- 1985-02-11 FR FR8501886A patent/FR2559380B1/en not_active Expired
- 1985-02-11 DE DE19853504616 patent/DE3504616A1/en active Granted
- 1985-02-11 PT PT79947A patent/PT79947A/en active IP Right Revival
- 1985-02-12 SE SE8500624A patent/SE8500624L/en not_active Application Discontinuation
- 1985-02-12 ES ES540339A patent/ES8605967A1/en not_active Expired
- 1985-02-12 NO NO850540A patent/NO850540L/en unknown
- 1985-02-12 LU LU85769A patent/LU85769A1/en unknown
- 1985-02-12 BE BE0/214504A patent/BE901716A/en not_active IP Right Cessation
- 1985-02-12 NL NL8500391A patent/NL192191C/en not_active IP Right Cessation
- 1985-02-12 DK DK064485A patent/DK159953C/en not_active IP Right Cessation
- 1985-02-12 CH CH636/85A patent/CH666399A5/en not_active IP Right Cessation
- 1985-02-12 AT AT0040585A patent/AT391266B/en not_active IP Right Cessation
- 1985-02-13 JP JP60027525A patent/JPS60232151A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| NL192191B (en) | 1996-11-01 |
| AU567651B2 (en) | 1987-11-26 |
| PT79947A (en) | 1985-03-01 |
| FR2559380B1 (en) | 1988-05-20 |
| BE901716A (en) | 1985-08-12 |
| ZA851002B (en) | 1985-09-25 |
| ATA40585A (en) | 1990-03-15 |
| DK159953B (en) | 1991-01-07 |
| DK64485A (en) | 1985-08-14 |
| NO850540L (en) | 1985-08-14 |
| DK64485D0 (en) | 1985-02-12 |
| NL8500391A (en) | 1985-09-02 |
| GB2154144B (en) | 1987-01-07 |
| ES8605967A1 (en) | 1986-04-01 |
| DE3504616A1 (en) | 1985-08-14 |
| NL192191C (en) | 1997-03-04 |
| FR2559380A1 (en) | 1985-08-16 |
| SE8500624D0 (en) | 1985-02-12 |
| SE8500624L (en) | 1985-08-14 |
| GB2154144A (en) | 1985-09-04 |
| ES540339A0 (en) | 1986-04-01 |
| IT1183736B (en) | 1987-10-22 |
| IT8484909A0 (en) | 1984-02-13 |
| DK159953C (en) | 1991-06-03 |
| JPS60232151A (en) | 1985-11-18 |
| AT391266B (en) | 1990-09-10 |
| CH666399A5 (en) | 1988-07-29 |
| GB8503461D0 (en) | 1985-03-13 |
| DE3504616C2 (en) | 1987-06-19 |
| LU85769A1 (en) | 1985-07-24 |
| AU3859485A (en) | 1985-08-22 |
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