JP2555277B2 - Anti-rotation device for distal lower leg fracture - Google Patents

Anti-rotation device for distal lower leg fracture

Info

Publication number
JP2555277B2
JP2555277B2 JP6241578A JP24157894A JP2555277B2 JP 2555277 B2 JP2555277 B2 JP 2555277B2 JP 6241578 A JP6241578 A JP 6241578A JP 24157894 A JP24157894 A JP 24157894A JP 2555277 B2 JP2555277 B2 JP 2555277B2
Authority
JP
Japan
Prior art keywords
cylinder nail
distal
nail
cylinder
steel wire
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
Application number
JP6241578A
Other languages
Japanese (ja)
Other versions
JPH08103453A (en
Inventor
馬 満 門
Original Assignee
門馬 満
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 門馬 満 filed Critical 門馬 満
Priority to JP6241578A priority Critical patent/JP2555277B2/en
Publication of JPH08103453A publication Critical patent/JPH08103453A/en
Application granted granted Critical
Publication of JP2555277B2 publication Critical patent/JP2555277B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • A61B17/72—Intramedullary pins, nails or other devices
    • A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
    • A61B17/7258—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with laterally expanding parts, e.g. for gripping the bone
    • 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
    • A61B17/72—Intramedullary pins, nails or other devices
    • A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
    • A61B17/7258—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with laterally expanding parts, e.g. for gripping the bone
    • A61B17/7266—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with laterally expanding parts, e.g. for gripping the bone with fingers moving radially outwardly

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、下腿遠位骨折に対する
手術用回旋防止具に係り、特に脛骨が骨折した際に、そ
の骨折部より近位の骨部分に対して遠位の骨部分が回旋
することを防止しつつ両骨部分を固定するための手術用
回旋防止具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surgical anti-rotation device for distal lower leg fractures, and particularly when a tibia fractures, a bone portion distal to the bone portion proximal to the fracture is fractured. The present invention relates to a surgical rotation preventing tool for fixing both bone parts while preventing rotation.

【０００２】[0002]

【従来の技術】下腿遠位骨折、特に脛骨遠位１／３骨折
（脛骨の先端からほぼ１／３部分の骨折）は最も起き易
い骨折であり、このような骨折が起きた場合には、図６
に示すように、脛骨Ｓの内腔に中空円筒状シリンダ釘Ｎ
を膝の部位から矢印Ａ方向に骨折部位Ｂを通って挿入
し、骨折部位Ｂより遠位にある骨部分に、シリンダ釘Ｎ
を貫通して横断方向にねじＣを打込んで、骨折部位Ｂよ
り近位の骨と遠位の骨を固定することが行われている。2. Description of the Related Art Distal lower leg fractures, especially the 1/3 distal tibia fractures (fractures of about 1/3 part from the tip of the tibia) are the most likely fractures, and when such fractures occur, Figure 6
As shown in FIG.
Is inserted from the knee site in the direction of arrow A through the fracture site B, and the cylinder nail N is inserted into the bone part distal to the fracture site B.
It is practiced to fix the bone proximal to the bone fracture site B and the bone distal to the bone fracture site B by driving a screw C in the transverse direction through the hole.

【０００３】[0003]

【発明が解決しようとする課題】以上に述べた公知の方
法は、骨折部位より近位の骨と遠位の骨を固定するため
には有効であるが、皮切を加える必要があるとともに、
横断方向へのねじＣの打込みをレントゲン線による透過
像を観察しながら行う関係上レントゲン線被曝量が多く
なり、しかも技術的に簡単ではないという問題がある。The known method described above is effective for fixing the bone proximal to the fracture site and the bone distal to the fracture site, but it is necessary to add a skin cut, and
Since the screw C is driven in the transverse direction while observing the transmission image by the X-ray, there is a problem that the amount of exposure to the X-ray becomes large and it is not technically easy.

【０００４】本発明は、以上に述べた問題を解決するた
めになされたもので、その目的は、操作が技術的に簡単
で済み、しかも骨折部位より近位の骨に対する遠位の骨
の回旋抵抗を大きくすることができる下腿遠位骨折に対
する手術用回旋防止具を得ることにある。The present invention has been made to solve the above-mentioned problems, and its purpose is to make the operation technically simple and to rotate the bone distal to the bone proximal to the fracture site. (EN) A surgical anti-rotation device for a distal leg fracture that can increase resistance.

【０００５】[0005]

【課題を解決するための手段】前記目的を解決するため
に、請求項１の発明による下腿遠位骨折に対する手術用
回旋防止具は、骨折した脛骨の中空内部に、骨折部を通
ってその近位から遠位にわたって挿入される中空円筒状
のシリンダ釘であって、その遠位の端部が円錐形に形成
され、かつその円錐形部に対向状に開口が形成されてい
るシリンダ釘と、このシリンダ釘の中空内部にその近位
端から挿入され、かつ先端がシリンダ釘の前記開口の各
々に案内されてそれを通りシリンダ釘の斜め外部に突出
して脛骨骨皮質内側に打込まれる少なくとも２本のキル
シュナ鋼線とから構成されていることを特徴とする。In order to solve the above-mentioned problems, an anti-rotation device for a distal lower leg fracture according to the invention of claim 1 is located in the hollow interior of a fractured tibia through a fractured portion and close thereto. A hollow cylindrical cylinder nail that is inserted from the position to the distal end, the distal end of which is formed into a conical shape, and an opening is formed in the conical portion so as to face each other, At least 2 inserted into the hollow interior of the cylinder nail from its proximal end and having a tip guided through each of said openings in the cylinder nail and projecting obliquely to the exterior of the cylinder nail therethrough and into the inner tibial cortex. It is characterized by being composed of a Kirschna steel wire of a book.

【０００６】また、請求項２の発明による下腿遠位骨折
に対する手術用回旋防止具は、請求項１の構成におい
て、前記円錐形部の開口がシリンダ釘の長軸方向に関し
て位置がずれており、前記キルシュナ鋼線の基端に屈曲
部が形成され、この屈曲部を掛ける凹部がシリンダ釘の
近位端に設けられていることを特徴とする。According to a second aspect of the present invention, in the surgical anti-rotation device for a lower leg fracture, in the configuration of the first aspect, the opening of the conical portion is displaced in the longitudinal direction of the cylinder nail, A bent portion is formed at the base end of the Kirschna steel wire, and a recess for hooking the bent portion is provided at the proximal end of the cylinder nail.

【０００７】[0007]

【作用】請求項１の発明では、骨折の手術に際し、膝の
部位を切開して脛骨の内腔に近位から遠位に向けてシリ
ンダ釘を挿入してシリンダ釘が骨折部を通って脛骨の先
端近くまでで達するようにし、ついで膝の部位からシリ
ンダ釘の内腔にキルシュナ鋼線を挿入し、その先端がシ
リンダ釘の円錐形部の開口を通って斜め外側へ突出する
ようにする。これによって、キルシュナ鋼線の先端は脛
骨の骨皮質内側に打込まれて固定される。According to the first aspect of the present invention, at the time of surgery for a fracture, the knee site is incised and a cylinder nail is inserted from the proximal side to the distal side into the inner cavity of the tibia so that the cylinder nail passes through the fractured portion and the tibia bone is passed through. Of the Kirschna wire from the knee site into the lumen of the cylinder nail so that the tip projects diagonally outward through the opening in the conical portion of the cylinder nail. As a result, the tip of the Kirschna wire is driven and fixed inside the cortex of the tibia.

【０００８】また、請求項２の発明では、シリンダ釘の
円錐形部の開口の位置が脛骨の長軸方向に関して異なっ
ているので、キルシュナ鋼線の先端は、脛骨の長軸方向
に関して異なる位置で骨皮質内側に打込まれる。したが
って、キルシュナ鋼線の骨皮質内側への打込みによる固
定は強固になる。そして、キルシュナ鋼線の基端の屈曲
部をシリンダ釘の近位端の凹部に掛けることによって、
キルシュナ鋼線のシリンダ釘に対する回旋が防止され
る。Further, in the invention of claim 2, since the position of the opening of the conical portion of the cylinder nail is different in the longitudinal direction of the tibia, the tip of the Kirschna steel wire is different in the longitudinal direction of the tibia. It is driven into the bone cortex. Therefore, the fixation by driving the Kirschna steel wire into the inside of the cortex becomes firm. Then, by hooking the bent portion at the base end of the Kirschna steel wire into the recess at the proximal end of the cylinder nail,
The rotation of the Kirschna steel wire with respect to the cylinder nail is prevented.

【０００９】[0009]

【実施例】次に、図面を参照して本発明の実施例につき
説明する。Embodiments of the present invention will now be described with reference to the drawings.

【００１０】図１において、脛骨は図６におけると同様
に、符号Ｓにより示されている。図６の公知例の場合と
同様に、骨折部位Ｂは、下腿遠位ほぼ１／３の箇所にあ
り、膝の部位を切開することによって、シリンダ釘Ｎが
脛骨Ｓの近位端からその内腔に挿入されている。In FIG. 1, the tibia is designated by the symbol S, as in FIG. As in the case of the known example in FIG. 6, the fracture site B is located at approximately 1/3 of the distal lower leg, and the cylinder nail N is cut from the proximal end of the tibia S by incising the knee region. It has been inserted into the cavity.

【００１１】図２に示すように、下腿遠位骨折に対する
手術用回旋防止具の一部材をなすシリンダ釘Ｎはステン
レス鋼製で中腔円筒状をなし、その近位端（人体に近い
端）すなわち基端には、一対の凹部２が対向状に形成さ
れている。凹部２の形状は図２および図３に示す通りで
ある。また、シリンダ釘Ｎの近位端には、開口部３が設
けられている。シリンダ釘Ｎの長さは脛骨の長さより僅
かに短く、その遠位端部すなわち先端部には円錐形部４
が設けられていて、先端へ行くほど細くなっている。そ
して、円錐形部４には、開口５ａ、５ｂが形成されてい
る。これらの開口５ａ、５ｂはほぼ対向しているが、一
方の開口５ａが他方の開口５ｂよりシリンダ釘Ｎの長軸
方向に関して僅かに近位端に近い位置に設けられてい
る。図３および図４から明らかなように、開口５ａ、５
ｂは前記凹部２と長手方向に関して一線上の位置にあ
る。As shown in FIG. 2, a cylinder nail N, which is a member of the anti-rotation device for distal fracture of the lower leg, is made of stainless steel and has a hollow cylindrical shape, and its proximal end (the end close to the human body). That is, a pair of recesses 2 are formed at the base end so as to face each other. The shape of the recess 2 is as shown in FIGS. 2 and 3. An opening 3 is provided at the proximal end of the cylinder nail N. The length of the cylinder nail N is slightly shorter than the length of the tibia, and the conical portion 4 is provided at its distal end or tip.
Is provided, and becomes thinner toward the tip. The conical portion 4 is formed with openings 5a and 5b. These openings 5a and 5b are substantially opposed to each other, but one opening 5a is provided at a position slightly closer to the proximal end in the longitudinal direction of the cylinder nail N than the other opening 5b. As is apparent from FIGS. 3 and 4, the openings 5a, 5
b is on a line with the recess 2 in the longitudinal direction.

【００１２】下腿遠位骨折に対する手術用回旋防止具
は、さらに、図２に示すように、一対のキルシュナ（Ki
rschner ）鋼線７、７により構成されている。各キルシ
ュナ鋼線（以下、単に鋼線という）７は例えばステンレ
ス鋼製の線材からなり、その遠位端すなわち先端８はや
や側方に弯曲している。その弯曲の方向は、鋼線７の近
位端すなわち基端に形成されている屈曲部９の屈曲方向
と同じになるようにされている。屈曲部９は前述の凹部
２に後述のように引掛けられるものである。鋼線７の先
端部８は図に示すように鋭い尖端８ａをもっている。As shown in FIG. 2, the surgical anti-rotation device for a distal lower leg fracture further comprises a pair of Kirschners (Ki).
rschner) Steel wire 7, 7. Each Kirschna steel wire (hereinafter, simply referred to as a steel wire) 7 is made of, for example, a stainless steel wire, and its distal end or tip 8 is slightly bent to the side. The direction of the curve is set to be the same as the bending direction of the bending portion 9 formed at the proximal end, that is, the base end of the steel wire 7. The bent portion 9 is to be hooked in the above-described recess 2 as described later. The tip 8 of the steel wire 7 has a sharp point 8a as shown in the figure.

【００１３】次に、以上に述べた本発明の手術用回旋防
止具を用いた手術方法について説明する。Next, a surgical method using the above-described surgical anti-rotation device of the present invention will be described.

【００１４】まず、骨折部の手術に際し、膝の部位を切
開して脛骨Ｓの内腔にその近位から遠位に向けてシリン
ダ釘Ｎを挿入する。これによって、シリンダ釘Ｎは図１
に示すように脛骨Ｓの骨折部位Ｂの近位側から遠位側に
わたって位置することになる。シリンダ釘Ｎが図１の位
置を占めたところで、再び膝の部位から鋼線７、７をシ
リンダ釘Ｎの内腔に挿入する。鋼線７、７は一本ずつ挿
入されるが、その際、各鋼線７はその先端部８の弯曲方
向がシリンダ釘Ｎの内面に向くようにしておく。その挿
入が進むにつれ、各鋼線７の先端部８はその尖端８ａが
シリンダ釘Ｎの内面に押付けられつつ滑り、円錐形部４
の開口５ａまたは５ｂに達すると、押付けの弾力により
先端部８はその尖端８ａが開口５ａまたは５ｂがら外部
へ突出する。この突出動作は、円錐形部４の内面がテー
パー面になっていることにより起り易くなる。そして、
各鋼線７が最も前進させられた状態では、図１に示すよ
うに、両鋼線７はその屈曲部９が凹部２に引掛けられて
シリンダ釘Ｎに対する相対回転が阻止され、さらに先端
部８は開口５ａ、５ｂから十分突出して骨皮質内側に打
込まれてそれに固定される。かくして、各鋼線７はその
先端部８が骨折部位Ｂより遠位の骨に食込んで固定さ
れ、しかも各鋼線７の基端屈曲部９はシリンダ釘Ｎに回
旋不能に引掛けられているので、骨折部位Ｂより遠位の
骨がシリンダ釘Ｎや脛骨の主体部に対し回旋することが
防止される。また、以上に述べた方法では、鋼線７はそ
れをシリンダ釘Ｎ内に挿入して打込むだけで、シリンダ
釘Ｎから斜め外側に自然に突出して遠位の骨の骨皮質に
内側から食込んで固定されるので、その操作は従来の方
法に比べて簡単でしかも確実である。First, at the time of surgery on a fractured part, a knee portion is incised and a cylinder nail N is inserted into the inner cavity of the tibia S from its proximal side to its distal side. As a result, the cylinder nail N is shown in FIG.
As shown in FIG. 3, the tibia S is located from the proximal side to the distal side of the fracture site B. When the cylinder nail N occupies the position shown in FIG. 1, the steel wires 7, 7 are again inserted into the inner cavity of the cylinder nail N from the knee portion. The steel wires 7 and 7 are inserted one by one. At this time, the bending direction of the tip 8 of each steel wire 7 is set to face the inner surface of the cylinder nail N. As the insertion proceeds, the tip portion 8 of each steel wire 7 slides while its tip 8a is pressed against the inner surface of the cylinder nail N, and the conical portion 4 is formed.
When reaching the opening 5a or 5b, the tip 8a of the tip portion 8 projects outward from the opening 5a or 5b by the elastic force of the pressing. This projecting operation is likely to occur because the inner surface of the conical portion 4 is a tapered surface. And
When the steel wires 7 are most advanced, as shown in FIG. 1, the bent portions 9 of the steel wires 7 are hooked in the recesses 2 to prevent relative rotation with respect to the cylinder nail N. 8 is sufficiently projected from the openings 5a and 5b, is driven into the inside of the cortex of the bone, and is fixed thereto. Thus, the tip end 8 of each steel wire 7 bites into the bone distal to the fracture site B and is fixed, and the base end bent portion 9 of each steel wire 7 is hooked on the cylinder nail N irreversibly. Therefore, the bone distal to the fracture site B is prevented from rotating around the cylinder nail N and the main part of the tibia. Further, in the above-described method, the steel wire 7 is naturally inserted into the cylinder nail N and driven, and naturally protrudes obliquely outward from the cylinder nail N to erode the bone cortex of the distal bone from the inside. Since it is fixed in a complicated manner, its operation is simpler and more reliable than the conventional method.

【００１５】実験結果によれば、図６の横断方向のねじ
Ｃを用いた公知例では、回転モーメントを掛けた場合、
回旋角度の増大率は低く、高い回転モーメント領域にお
いても回旋角度は低い値をとった。これに対し、本発明
による場合は、回旋角度の増大率は、横断方向のねじＣ
を用いる公知例の場合に匹敵し、回転モーメントに強い
ことが立証された。それにもかかわらず、本発明の場合
には、横断方向のねじＣを用いる場合より、技術的には
はるかに手術が簡単になる。According to the experimental results, in the known example using the screw C in the transverse direction in FIG. 6, when a rotational moment is applied,
The increase rate of the turning angle was low, and the turning angle was low even in the high turning moment region. On the other hand, according to the present invention, the rate of increase of the turning angle is
It has been proved that it is strong against the rotation moment and is comparable to the known example using. Nevertheless, in the case of the present invention, surgery is technically much simpler than with the use of transverse screws C.

【００１６】骨折部位Ｂで骨が固まった後、本発明の手
術用回旋防止具は体内から取出されるが、その場合も、
本発明では鋼線７は単に引抜くだけで済むので、技術的
には簡単である。After the bone is solidified at the fracture site B, the surgical anti-rotation device of the present invention is taken out from the body.
In the present invention, the steel wire 7 need only be pulled out, which is technically simple.

【００１７】上述の実施例では、シリンダ釘Ｎは直線状
の中空円筒により構成されているが、図５に示すように
シリンダ釘Ｎを骨の形状に合せて弯曲状中空円筒により
構成することもできる。この場合には、鋼線７も当然の
ことながらシリンダ釘Ｎの弯曲に合せて弯曲させること
になる。In the above-described embodiment, the cylinder nail N is formed of a straight hollow cylinder, but as shown in FIG. 5, the cylinder nail N may be formed of a curved hollow cylinder according to the shape of the bone. it can. In this case, the steel wire 7 is naturally bent in accordance with the bending of the cylinder nail N.

【００１８】[0018]

【発明の効果】以上に述べたように、請求項１の発明に
よれば、手術に際し、膝の部位を切開して脛骨の内腔に
近位から遠位に向けてシリンダ釘を挿入し、シリンダ釘
の内部にキルシュナ鋼線を挿入して打込むのみで、その
先端部が自然に脛骨の骨皮質に内側から入り込んで固定
される。したがって、手術が技術的に比較的簡単になる
とともに、キルシュナ鋼線は少なくとも２本用いられる
ので、回旋の防止が有効になされるという効果が得られ
る。As described above, according to the first aspect of the present invention, at the time of operation, the knee site is incised and the cylinder nail is inserted from the proximal side to the distal side into the inner cavity of the tibia, Simply inserting the Kirschna steel wire into the inside of the cylinder nail and driving it into the cylinder nail allows the tip end portion to naturally enter the bone cortex of the tibia from the inside and be fixed. Therefore, the operation is technically relatively simple, and since at least two Kirschna steel wires are used, it is possible to effectively prevent the rotation.

【００１９】また、請求項２の発明によれば、シリンダ
釘の円錐形部の開口の位置が脛骨の長軸方向に関して異
なっているので、キルシュナ鋼線の先端は、脛骨の長軸
方向に関して異なる位置で骨皮質内側に打込まれる。し
たがって、キルシュナ鋼線の骨皮質内側への打込みによ
る固定は強固になる。そして、キルシュナ鋼線の基端の
屈曲部をシリンダ釘の近位端の凹部に掛けることによっ
て、キルシュナ鋼線のシリンダ釘に対する回旋が阻止さ
れるので、回旋防止効果が向上する。Further, according to the invention of claim 2, since the position of the opening of the conical portion of the cylinder nail is different in the longitudinal direction of the tibia, the tip of the Kirschna steel wire is different in the longitudinal direction of the tibia. It is driven into the bone cortex at the position. Therefore, the fixation by driving the Kirschna steel wire into the inside of the cortex becomes firm. Then, by turning the bent portion at the base end of the Kirschna steel wire into the recess at the proximal end of the cylinder nail, the rotation of the Kirschna steel wire with respect to the cylinder nail is prevented, so the effect of preventing rotation is improved.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明による下腿遠位骨折に対する手術用回旋
防止具の一実施例を示す組立図である。FIG. 1 is an assembly view showing an embodiment of a surgical anti-rotation device for a distal lower leg fracture according to the present invention.

【図２】図１に示す手術用回旋防止具の分解図である。FIG. 2 is an exploded view of the surgical anti-rotation device shown in FIG.

【図３】図２に示すシリンダ釘の右方から見た側面図で
ある。FIG. 3 is a side view of the cylinder nail shown in FIG. 2 as viewed from the right side.

【図４】図２に示すシリンダ釘の左方から見た側面図で
ある。FIG. 4 is a side view of the cylinder nail shown in FIG. 2 as viewed from the left side.

【図５】図２に示すシリンダ釘の変形実施例の断面図で
ある。5 is a cross-sectional view of a modified embodiment of the cylinder nail shown in FIG.

【図６】従来の下腿遠位骨折に対する手術用回旋防止具
を示す組立図である。FIG. 6 is an assembly view showing a conventional anti-rotation device for distal lower leg fractures.

【符号の説明】[Explanation of symbols]

Ｓ 脛骨 Ｎ シリンダ釘 Ｂ 脛骨骨折部 ２ 凹部 ４ 円錐形部 ５ａ、５ｂ 開口 ７ キルシュナ鋼線 ８ 先端部 ９ 屈曲部 S Tibia N Cylinder nail B Tibia fracture part 2 Recessed part 4 Conical part 5a, 5b Opening 7 Kirschna steel wire 8 Tip part 9 Bent part

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】骨折した脛骨の中空内部に、骨折部を通っ
てその近位から遠位にわたって挿入される中空円筒状の
シリンダ釘であって、その遠位の端部が円錐形に形成さ
れ、かつその円錐形部に対向状に開口が形成されている
シリンダ釘と、 このシリンダ釘の中空内部にその近位端から挿入され、
かつ先端がシリンダ釘の前記開口の各々に案内されてそ
れを通りシリンダ釘の斜め外部に突出して脛骨骨皮質内
側に打込まれる少なくとも２本のキルシュナ鋼線と、 から構成されていることを特徴とする下腿遠位骨折に対
する手術用回旋防止具。1. A hollow cylindrical cylinder nail inserted into the hollow interior of a fractured tibia through a fracture portion from its proximal end to its distal end, the distal end of which is formed into a conical shape. , And a cylinder nail in which an opening is formed in the conical portion so as to face each other, and the cylinder nail is inserted into the hollow interior of the cylinder nail from its proximal end,
And at least two Kirschna steel wires, each of which has a tip guided to each of the openings of the cylinder nail, protrudes obliquely to the outside of the cylinder nail, and is driven into the inner side of the tibial cortex. Anti-rotation device for distal fracture of lower leg. 【請求項２】前記円錐形部の開口がシリンダ釘の長軸方
向に関して位置がずれており、前記キルシュナ鋼線の基
端に屈曲部が形成され、この屈曲部を掛ける凹部がシリ
ンダ釘の近位端に設けられていることを特徴とする請求
項１記載の下腿遠位骨折に対する手術用回旋防止具。2. The opening of the conical portion is displaced with respect to the longitudinal direction of the cylinder nail, a bent portion is formed at the base end of the Kirschner steel wire, and a recess for hooking the bent portion is close to the cylinder nail. The surgical anti-rotation device for distal leg fractures according to claim 1, wherein the device is provided at the distal end.
JP6241578A 1994-10-05 1994-10-05 Anti-rotation device for distal lower leg fracture Expired - Fee Related JP2555277B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6241578A JP2555277B2 (en) 1994-10-05 1994-10-05 Anti-rotation device for distal lower leg fracture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6241578A JP2555277B2 (en) 1994-10-05 1994-10-05 Anti-rotation device for distal lower leg fracture

Publications (2)

Publication Number Publication Date
JPH08103453A JPH08103453A (en) 1996-04-23
JP2555277B2 true JP2555277B2 (en) 1996-11-20

Family

ID=17076406

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6241578A Expired - Fee Related JP2555277B2 (en) 1994-10-05 1994-10-05 Anti-rotation device for distal lower leg fracture

Country Status (1)

Country Link
JP (1) JP2555277B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1155661A1 (en) * 1999-02-15 2001-11-21 Ishibashi, Toru Bone fracture therapeutic implement
SE517570C2 (en) * 2000-08-09 2002-06-18 Lars Johan Henrik Hansson Device for fixing means for fixing bone fragments in case of fracture
KR100785316B1 (en) * 2006-06-02 2007-12-17 한국과학기술원 Minimally invasive intramedullary nail
CN102160815A (en) * 2010-10-12 2011-08-24 潘胜兰 Orthopaedic double-blade needle
CN103860252A (en) * 2014-03-07 2014-06-18 中国人民解放军第四军医大学 Medical anchor type cancellous bone screw

Also Published As

Publication number Publication date
JPH08103453A (en) 1996-04-23

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