JP2003159258A - Bone fracture treatment instrument for injecting fluid - Google Patents
Bone fracture treatment instrument for injecting fluidInfo
- Publication number
- JP2003159258A JP2003159258A JP2001363948A JP2001363948A JP2003159258A JP 2003159258 A JP2003159258 A JP 2003159258A JP 2001363948 A JP2001363948 A JP 2001363948A JP 2001363948 A JP2001363948 A JP 2001363948A JP 2003159258 A JP2003159258 A JP 2003159258A
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- injector
- main body
- injector body
- fracture treatment
- 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.)
- Pending
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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/864—Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated
-
- 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
- A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
-
- 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
- A61B17/7097—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants
- A61B17/7098—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants wherein the implant is permeable or has openings, e.g. fenestrated screw
-
- 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
- A61B17/74—Devices for the head or neck or trochanter of the femur
- A61B17/742—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
- A61B17/746—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck the longitudinal elements coupled to a plate opposite the femoral head
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Surgical Instruments (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、骨折の治療に使用
する液体やペーストなどの流動体を注入するための骨折
治療器具の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved device for treating fractures for injecting fluid such as liquid or paste used for treating fractures.
【０００２】[0002]
【従来の技術】一般に、外力によって、骨組織体が破壊
された場合、特殊な細胞が骨折部の間に侵入して、新し
い健常な骨組織が形成される。この治癒過程で、多目的
細胞が、骨折部に侵入して、損傷組織を速やかに除去
し、骨を構築する骨芽細胞になって、骨折部のギャップ
を埋めるようになっている。2. Description of the Related Art Generally, when a bone tissue body is destroyed by an external force, special cells infiltrate between fractured parts to form new healthy bone tissue. During this healing process, multipurpose cells invade the fractured part to quickly remove damaged tissue and become bone-forming osteoblasts, filling the gaps in the fractured part.
【０００３】また、骨芽細胞は、骨折部の架橋形成と、
新しい骨の基であるコラーゲンのフレームを形成し、こ
のコラーゲンとカルシウムの仮骨を骨折部の周りに形成
する。そして、カルシウムとリンの結晶とミネラルが骨
を形成し、骨が治癒されるようになっている。[0003] Osteoblasts are also associated with the formation of bridges in fractures.
The collagen frame that forms the basis of new bone is formed, and the collagen and calcium callus are formed around the fracture. Then, crystals of calcium and phosphorus and minerals form bones, and the bones are healed.
【０００４】その際、骨折治癒の初期段階では、例えば
図７に示すように、整骨後に、骨折箇所Ｋを固定するた
めに、螺子，プレート，Ｋ−鋼線などの内固定部材５１
によって、骨折部の骨片５２，５３を結合させるように
なっている。これにより、骨折部の正しいアライメント
を保持し、変形が生じないような解剖学的形態を保持し
ている間に、多目的細胞が、骨折箇所Ｋのギャップを埋
め、架橋形成を進展させて仮骨を形成し、骨折が治癒す
るようになっていた。At this time, in the initial stage of healing of a fracture, as shown in FIG. 7, for example, an internal fixing member 51 such as a screw, a plate, a K-steel wire or the like for fixing a fracture site K after osteopathy.
The bone pieces 52 and 53 of the fractured portion are joined together by the above. This allows the multipurpose cells to fill the gap at the fracture site K and promote cross-link formation by maintaining the correct alignment of the fractured part and maintaining the anatomical shape such that no deformation occurs. Was formed and the fracture was supposed to heal.
【０００５】[0005]
【発明が解決しようとする課題】ところが、上記従来の
ように、螺子などによって骨折箇所Ｋを固定するもので
は、十分な強度を維持することが困難であり、手術を行
ったにもかかわらず、手術後、直ちに患部に荷重をかけ
ることはできず、骨折箇所Ｋに大きな力が作用すると、
手術を行ったにもかかわらず、再度、骨折箇所Ｋから破
損が生じるという問題があった。また、骨折箇所Ｋに、
プレートを挿入するには、患部（骨折部）を大きく切り
開かなければならないという問題があった。However, it is difficult to maintain sufficient strength in the case of fixing the fracture site K with a screw or the like as in the above-mentioned conventional technique, and despite performing surgery, Immediately after the operation, it is not possible to apply a load to the affected area, and if a large force acts on the fracture site K,
Despite the surgery, there was a problem that the fracture site K was damaged again. Also, at the fracture point K,
There was a problem that the affected part (fracture part) had to be cut open to insert the plate.
【０００６】そこで、患部の強度を手術後早期に得るた
めに、液体やペースト状のリン酸カルシウムからなる骨
ペーストを初期固定に用いる手術が行われるようになっ
た。ところが、これらの液体やペースト状のものを、骨
折箇所に適切に注入することは、極めて困難であった。[0006] Therefore, in order to obtain the strength of the affected area early after the surgery, a surgery using a bone paste made of liquid or pasty calcium phosphate for initial fixation has been performed. However, it is extremely difficult to properly inject these liquids or pastes into the fractured part.
【０００７】よって、本発明の目的は、簡単な構成で、
液体やリン酸カルシウム骨ペーストなどの流動体を患部
の骨髄腔に適切に注入し、骨折部の早期治癒を可能とす
る骨折治療器具を提供することにある。Therefore, the object of the present invention is to provide a simple structure,
It is an object of the present invention to provide a bone fracture treatment instrument capable of promptly healing a bone fracture by appropriately injecting a liquid or a fluid such as calcium phosphate bone paste into the bone marrow cavity of an affected area.
【０００８】[0008]
【課題を解決するための手段】本発明は、流動体注入用
の骨折治療器具に関する。本発明の上記目的は、略中空
円筒状の注入器本体に、１又は複数の流動体注入用の開
口が、該注入器本体の軸心に対して放射状に延びてい
て、該開口から骨髄腔に、液体若しくはペースト状の流
動体を注入させることにより、効果的に達成される。SUMMARY OF THE INVENTION The present invention is directed to a fracture treatment device for fluid injection. The above object of the present invention is to provide a substantially hollow cylindrical injector main body with one or a plurality of fluid injection openings extending radially with respect to the axis of the injector main body. It is effectively achieved by injecting a liquid or paste-like fluid into the.
【０００９】また、上記目的は、上記注入器本体の一側
端若しくは両端に、それぞれ、骨の一部に螺合固定する
ための螺子が形成されていることにより、より効果的に
達成される。また、上記目的は、上記螺子に、注入器本
体の軸心に対して放射状に延びる１又は複数の開口が形
成されていることにより、より効果的に達成される。ま
た、上記目的は、上記流動体注入用の開口は、上記注入
器本体の軸心に対してあらゆる角度範囲で放射状に延び
ることにより、より一層効果的に達成される。Further, the above object can be achieved more effectively by forming a screw for screwing and fixing to a part of the bone at one end or both ends of the injector main body. . Further, the above object is more effectively achieved by forming one or a plurality of openings radially extending with respect to the axis of the injector body in the screw. Further, the above-mentioned object can be achieved even more effectively by the openings for injecting the fluid extending radially in all angular ranges with respect to the axis of the injector body.
【００１０】また、上記目的は、中空円筒状の注入器本
体の中枢あるいは末梢端に注入した液体もしくはペース
ト状の流動体が流出しないように蓋ができることによ
り、より一層効果的に達成される。The above object can be achieved even more effectively by providing a lid so that the liquid or paste-like fluid injected into the central or distal end of the hollow cylindrical injector main body does not flow out.
【００１１】また、上記目的は、略中空円筒状の注入器
本体と、該注入器本体をスライド自在に保持するホルダ
ー部を一体に形成した支持部材とからなり、上記注入器
本体内に、通路が形成されるとともに、先端に雄螺子が
形成されていて、該雄螺子によって上記注入器本体を螺
合固定し、かつ該注入器本体に上記ホルダー部を嵌挿し
て、上記支持部材を骨折箇所より中枢若しくは末梢で固
定するようにしたことにより、より一層効果的に達成さ
れる。Further, the above object is composed of a substantially hollow cylindrical injector main body and a support member integrally formed with a holder portion for slidably holding the injector main body, and a passage is provided in the injector main body. Is formed and a male screw is formed at the tip, the injector body is screwed and fixed by the male screw, and the holder portion is fitted into the injector body to fix the support member to a fractured part. By fixing it more centrally or peripherally, it is achieved even more effectively.
【００１２】また、上記目的は、上記支持部材を、注入
器本体の先端に形成された雄螺子とともに、外部から１
又は複数の螺子で固定することにより、より一層効果的
に達成される。[0012] Further, the above-mentioned object is to support the above-mentioned supporting member together with a male screw formed at the tip of the injector main body from the outside.
Alternatively, it can be achieved more effectively by fixing with a plurality of screws.
【００１３】また、上記目的は、注入器本体には、該本
体の軸心に対して放射状に延びる１又は複数の開口を形
成することにより、より一層効果的に達成される。Further, the above object can be achieved even more effectively by forming one or a plurality of openings in the injector body that extend radially with respect to the axis of the injector body.
【００１４】また、上記目的は、上記開口を、上記注入
器本体の軸心に対してあらゆる角度範囲で放射状に延び
るようにしたことにより、より一層効果的に達成され
る。The above-mentioned object can be achieved even more effectively by the fact that the opening is formed so as to extend radially with respect to the axial center of the injector body in all angular ranges.
【００１５】さらに、上記目的は、注入器本体の中枢若
しくは末梢端に注入した液体若しくはペースト状の流動
体が流出しないように蓋ができるようにしたことによ
り、より一層効果的に達成される。Further, the above-mentioned object can be achieved even more effectively by providing a lid so that the liquid or paste-like fluid injected into the central or distal end of the injector body does not flow out.
【００１６】[0016]
【発明の実施の形態】以下、図面を参照しながら、本発
明の実施形態を説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.
【００１７】図１は、本発明に係る骨折治療器具Ａを骨
の患部（骨折部）に装着した状態を示す図である。一般
に、骨は、同図に示すように、骨髄腔１とこれを取り巻
く骨皮質２によって構成され、該骨髄腔１には、薄い板
状，梁状の骨質が交差した状態で海綿体３が形成されて
いる。FIG. 1 is a view showing a state in which the fracture treatment device A according to the present invention is attached to an affected part (bone fracture) of a bone. In general, a bone is composed of a bone marrow cavity 1 and a bone cortex 2 surrounding the bone marrow cavity 1, as shown in FIG. Has been formed.
【００１８】骨折部では、略円筒状の本体４からなる骨
折治療器具Ａは、骨髄腔１の欠損した海綿体３ａを貫通
するようになっている。この本体４は、その両端に雄螺
子５，５が形成され、該雄螺子５，５は、それぞれ骨皮
質２，２に螺合するようになっている。At the fractured portion, the fracture treatment instrument A having a substantially cylindrical main body 4 penetrates the spongy body 3a in which the bone marrow cavity 1 is defective. The main body 4 has male screws 5 and 5 formed at both ends thereof, and the male screws 5 and 5 are adapted to be screwed into the bone cortices 2 and 2, respectively.
【００１９】また、上記本体４内には、図２に示すよう
に、Ｋ−鋼線６を挿通する中空通路７が形成され、該Ｋ
−鋼線６を介して、本体４を骨折位置に容易に挿入，固
定するようになっている。すなわち、Ｋ−鋼線６を骨折
箇所に固定した後、Ｋ−鋼線６の案内により、本体４を
骨折位置で螺子によって固定するようになっている。こ
の本体４は、一端開口部に、円盤状の閉塞部材８が嵌挿
されるとともに、他端開口部に、通路７を閉鎖するため
の蓋部材９が装着されるようになっている。これによ
り、本体４内の通路７に、閉塞部材８を入れた後、圧力
を加え、蓋部材９を装着して、通路７を密封するように
なっている。A hollow passage 7 for inserting the K-steel wire 6 is formed in the main body 4 as shown in FIG.
-The body 4 is easily inserted and fixed to the fracture position via the steel wire 6. That is, after fixing the K-steel wire 6 to the fractured part, the body 4 is fixed by the screw at the fractured position by the guide of the K-steel wire 6. The main body 4 has a disk-shaped closing member 8 fitted into an opening at one end, and a lid member 9 for closing the passage 7 attached to an opening at the other end. As a result, after the closing member 8 is put into the passage 7 in the main body 4, pressure is applied and the lid member 9 is attached to seal the passage 7.
【００２０】そして、本発明の特徴として、本体４の外
周には、図３に示すように、長軸方向に、軸心を含む平
面に対してあらゆる角度、例えば約２０度から約１６０
度の角度で、１又は複数の開口１０が放射状に延びてい
る。これにより、液体或いはペースト状のリン酸カルシ
ウムなどの流動体を、開口１０を介して海綿体３ａに注
入するようになっている。As a feature of the present invention, on the outer periphery of the main body 4, as shown in FIG. 3, in the major axis direction, at any angle, for example, from about 20 degrees to about 160 with respect to a plane including the axis.
At an angle of degrees, one or more apertures 10 extend radially. As a result, a liquid or paste-like fluid such as calcium phosphate is injected into the spongy body 3 a through the opening 10.
【００２１】次に、液体若しくはペーストを注入するプ
ロセスを、図２を参照しながら説明する。Next, the process of injecting the liquid or paste will be described with reference to FIG.
【００２２】まず、骨折箇所にＫ−鋼線６を挿入し、仮
固定する。また、このＫ−鋼線６に沿って、本体４は、
図１および図２に示すように挿通され、両端の雄螺子
５，５で骨皮質２，２に螺合されて固定される。First, the K-steel wire 6 is inserted into the fractured part and temporarily fixed. Further, along this K-steel wire 6, the main body 4 is
It is inserted as shown in FIGS. 1 and 2, and is screwed and fixed to the bone cortex 2, 2 with male screws 5, 5 at both ends.
【００２３】次に、本体４に、閉塞部材８が挿入され、
本体４の先端（図１左側）に装着されて固定される。こ
れにより、本体４の先端から、液体やペーストが先端
（図１左側）から流出することを阻止するようになって
いる。Next, the closing member 8 is inserted into the main body 4,
It is attached and fixed to the tip of the body 4 (left side in FIG. 1). This prevents liquid or paste from flowing out from the tip (left side in FIG. 1) of the body 4.
【００２４】そして、図４に示すように、本体４の後端
（図１右側）に、流動体の注入器１１のノズル１２を装
着して、押出ピストン１３によって、注入器１１内の流
動体を通路７内に注入するようになっている。すなわ
ち、押出ピストン１３を図４の矢印方向に押すことによ
り、注入器１１内の液体やペーストなどの流動体を通路
７内に注入するようになっている。そして、液体やペー
ストなどの流動体は、開口１０を介して、欠損した海綿
体３ａに注入されるようになっている。As shown in FIG. 4, the nozzle 12 of the fluid injector 11 is attached to the rear end of the main body 4 (on the right side in FIG. 1), and the fluid inside the injector 11 is removed by the extrusion piston 13. Is injected into the passage 7. That is, by pushing the pushing piston 13 in the direction of the arrow in FIG. 4, the fluid such as liquid or paste in the injector 11 is injected into the passage 7. A fluid such as liquid or paste is then injected into the defective spongy body 3a through the opening 10.
【００２５】最後に、本体４の後端（図１右側）に、注
入器１１を取り外して、蓋部材９を装着することによ
り、液体やペーストなどの流動体が外部に流出しないよ
うになっている。これにより、通路７が閉鎖され、骨髄
腔１および海綿体３に、液体やペーストなどの流動体が
密封された状態になる。Finally, by removing the injector 11 and attaching the lid member 9 to the rear end of the main body 4 (on the right side in FIG. 1), fluid such as liquid or paste does not flow out. There is. As a result, the passage 7 is closed, and a fluid such as liquid or paste is sealed in the bone marrow cavity 1 and the spongy body 3.
【００２６】したがって、上記実施例では、中空円筒状
の本体４の外周に、１又は複数の開口を形成し、注入器
１１により、本体４の外部から本体４の後端に、液体若
しくはペーストなどの流動体を押し込むようにした。そ
して、この流動体は、本体４内の通路７を通って、開口
１０，１０，・・・から、骨髄腔１に注入される。これ
により、流動体は、注入器１１で外部から加圧するだけ
の簡単な構成で、骨折部に確実に圧入することができ
る。しかも、本体４は、予め固定されたＫ−鋼線６の案
内により、確実に骨折部に固定することができ、かつ本
体４の両端には、それぞれ雄螺子５，５が形成されてい
て、本体４を骨皮質２，２に強固に螺合して固定するよ
うにしたので、強度が高く、骨折位置で確実に固定する
ことができる。Therefore, in the above embodiment, one or a plurality of openings are formed on the outer periphery of the hollow cylindrical main body 4, and the injector 11 is used to apply liquid or paste from the outside of the main body 4 to the rear end of the main body 4. The fluid of was pushed in. Then, this fluid is injected into the bone marrow cavity 1 through the passages 7 in the main body 4 and through the openings 10, 10 ,. With this, the fluid can be reliably press-fitted into the fractured portion with a simple structure in which the injector 11 pressurizes the fluid from the outside. Moreover, the main body 4 can be reliably fixed to the fractured part by the guide of the previously fixed K-steel wire 6, and male screws 5 and 5 are formed at both ends of the main body 4, respectively. Since the main body 4 is firmly screwed and fixed to the bone cortices 2 and 2, the main body 4 has high strength and can be reliably fixed at the fracture position.
【００２７】また、流動体として、リン酸カルシウム骨
ペーストなどを使用すると、骨折部の初期固定を強固に
することができる。If calcium phosphate bone paste or the like is used as the fluid, the initial fixation of the fractured portion can be strengthened.
【００２８】なお、上記実施例では、本体４の両側に雄
螺子５，５を設けたが、図２右側の雄螺子を省略しても
よく、上記実施例と同様の作用，効果を奏することがで
きる。Although the male screws 5 and 5 are provided on both sides of the main body 4 in the above embodiment, the male screw on the right side of FIG. 2 may be omitted, and the same operation and effect as in the above embodiment can be obtained. You can
【００２９】また、図５は、本発明に係る骨折治療器具
の他の実施例を示す。同図において、骨折治療器具は、
略円筒状の本体５１と、該本体５１を同図矢印方向にス
ライド自在に保持する円筒状ホルダー部５２を一体に形
成した支持部材５３とからなり、骨外形に沿って上記支
持部材５３をあてがい、螺子５４によって、骨折箇所に
固定されるようになっている。また、この本体５１に
は、図６に示すように、液体若しくはペースト状の流動
体の通路５５が形成されている。この通路５５には、１
又は複数の開口５６，５６，・・・が本体５１の軸心に
対してあらゆる角度で放射状に延びていて、該開口５
６，５６，・・・から骨髄腔５７に、流動体を注入させ
るようになっている。なお、５８は、本体５１の先端に
形成された雄螺子であり、上記通路５５には、先端部に
蓋部材５９が設けられるとともに、基端部に中央から螺
子６０が突設した蓋部材６１が設けられていて、流動体
を通路５５内に密封するようになっている。そして、骨
折治療器具を骨折箇所に装着する場合、本体５１を、雄
螺子５８によって骨折箇所に螺合固定させ、該本体１の
基端部から、ホルダー部５２を嵌挿させることによっ
て、支持部材５３を外部から螺子５４で締め付けて固定
するようになっている。これにより、この実施例でも、
通路５５を介して、開口５６から骨髄腔５７に液体若し
くはペースト状の流動体を注入することができ、上記最
初の実施例と同様の作用，効果を奏することができる。FIG. 5 shows another embodiment of the fracture treatment device according to the present invention. In the figure, the fracture treatment device is
It is composed of a substantially cylindrical main body 51 and a support member 53 integrally formed with a cylindrical holder portion 52 that holds the main body 51 slidably in the direction of the arrow in the figure, and applies the support member 53 along the bone outer shape. The screws 54 are adapted to be fixed to the fractured part. Further, as shown in FIG. 6, a passage 55 for a liquid or paste-like fluid is formed in the main body 51. 1 in this passage 55
, A plurality of openings 56, 56, ... Radially extend at any angle with respect to the axis of the main body 51, and the openings 5
The fluid is injected into the bone marrow cavity 57 from 6, 56, .... Reference numeral 58 denotes a male screw formed at the tip of the main body 51, and the passage 55 is provided with a lid member 59 at the tip and a lid member 61 having a screw 60 protruding from the center at the base end. Is provided to seal the fluid in the passage 55. When the fracture treatment device is attached to the fractured part, the main body 51 is screwed and fixed to the fractured part by the male screw 58, and the holder part 52 is inserted from the base end part of the main body 1 to support the support member. 53 is fixed from the outside by a screw 54. As a result, even in this embodiment,
A liquid or paste-like fluid can be injected into the bone marrow cavity 57 from the opening 56 through the passage 55, and the same action and effect as those of the first embodiment can be obtained.
【００３０】なお、上記各実施例は、本件発明の態様を
例示する一実施例であって、これに限定されるものでは
なく、本件発明の範囲には、本件特許請求の範囲の記載
に基く種々の態様のものが含まれる。It should be noted that each of the above-mentioned embodiments is an embodiment illustrating the mode of the present invention and is not limited to this, and the scope of the present invention is based on the description of the claims of the present invention. Various aspects are included.
【００３１】[0031]
【発明の効果】以上のように、本願発明に係る骨折治療
器具によると、中空円筒状の注入器本体に、１又は複数
の流動体注入用の開口１０をあらゆる角度範囲で放射状
に形成し、該開口１０から骨髄腔１に、液体若しくはペ
ースト状の流動体を流入させるようにした。これによ
り、液体若しくはペースト状の流動体を、本体４の一端
開口から、簡単にかつ確実に骨髄腔１に注入することが
でき、また、本体４は、両端の螺子５，５によって、骨
皮質２，２に強固に固定されるので、十分な強度を得る
ことができる。また、流動体として、リン酸カルシウム
骨ペーストを使用することにより、骨折部の初期固定を
強固にすることができ、患者は、早期に社会復帰するこ
とができる。As described above, according to the fracture treatment device of the present invention, one or a plurality of openings 10 for injecting a fluid are radially formed in a hollow cylindrical injector main body, A liquid or paste-like fluid was made to flow into the bone marrow cavity 1 through the opening 10. As a result, a liquid or paste-like fluid can be easily and surely injected into the bone marrow cavity 1 from the opening at one end of the main body 4, and the main body 4 is fixed to the bone cortex by the screws 5 and 5 at both ends. Since it is firmly fixed to Nos. 2 and 2, sufficient strength can be obtained. Further, by using the calcium phosphate bone paste as the fluid, the initial fixation of the fractured part can be strengthened, and the patient can return to society early.
【図１】本発明に係る骨折治療器具を骨折位置に装着し
た状態を示す断面図である。FIG. 1 is a cross-sectional view showing a state in which a bone fracture treatment instrument according to the present invention is mounted at a bone fracture position.
【図２】上記骨折治療器具にＫ−鋼線を嵌入した状態を
示す概略構成図である。FIG. 2 is a schematic configuration diagram showing a state in which a K-steel wire is fitted into the bone fracture treatment instrument.
【図３】上記骨折治療器具本体の全体構成を示す図であ
る。FIG. 3 is a diagram showing an overall configuration of the bone fracture treatment instrument body.
【図４】上記骨髄腔に、液体若しくはペースト状の流動
体を注入する状態を示す説明図である。FIG. 4 is an explanatory diagram showing a state of injecting a liquid or paste-like fluid into the bone marrow cavity.
【図５】他の実施例に係る骨折治療器具を骨折位置に装
着した状態を示す断面図である。FIG. 5 is a cross-sectional view showing a state in which a bone fracture treatment instrument according to another embodiment is attached to a bone fracture position.
【図６】他の実施例に係る骨折治療器具本体の構成を示
す図である。FIG. 6 is a view showing a configuration of a bone fracture treatment instrument body according to another embodiment.
【図７】従来の螺子による骨折部の固定状態を示す図で
ある。FIG. 7 is a view showing a fixed state of a fractured portion with a conventional screw.
１ 骨髄腔 ２ 骨皮質 ４ 本体 ５ 雄螺子 ７ 通路 ８ 閉塞部材 ９ 蓋部材 １０ 開口 ５１ 本体 ５２ ホルダー部 ５３ 支持部材 ５５ 通路 ５６ 開口 ５７ 骨髄腔 ５８ 雄螺子 1 bone marrow cavity 2 bone cortex 4 body 5 male screw 7 passages 8 Closing member 9 Lid member 10 openings 51 body 52 Holder 53 Support member 55 passage 56 openings 57 bone marrow cavity 58 male screw
Claims (10)
の流動体注入用の開口が、該注入器本体の軸心に対して
放射状に延びていて、該開口から骨髄腔に、液体若しく
はペースト状の流動体を注入させるようにしたことを特
徴とする流動体注入用の骨折治療器具。1. A substantially hollow cylindrical injector body having one or a plurality of fluid injection openings radially extending with respect to the axis of the injector body, and from the opening to the bone marrow cavity. A fracture treatment device for fluid injection, characterized in that a liquid or pasty fluid is injected.
それぞれ、骨の一部に螺合固定するための螺子が形成さ
れていることを特徴とする請求項１に記載の流動体注入
用の骨折治療器具。2. One or both ends of the injector body,
The fracture treatment device for fluid injection according to claim 1, wherein a screw for screwing and fixing to each part of the bone is formed.
射状に延びる１又は複数の開口が形成されていることを
特徴とする請求項２に記載の流動体注入用の骨折治療器
具。3. The fracture treatment device for fluid injection according to claim 2, wherein the screw is formed with one or a plurality of openings extending radially with respect to the axis of the injector body. .
体の軸心に対してあらゆる角度範囲で放射状に延びてい
ることを特徴とする請求項１に記載の流動体注入用の骨
折治療器具。4. The fracture for fluid injection according to claim 1, wherein the opening for fluid injection extends radially in all angular ranges with respect to the axis of the injector body. Therapeutic instrument.
入した液体若しくはペースト状の流動体が流出しないよ
うに蓋ができることを特徴とする請求項１に記載の流動
体注入用の骨折治療器具。5. The fracture treatment device for injecting a fluid according to claim 1, wherein a lid can be formed to prevent the liquid or paste-like fluid injected into the central or distal end of the injector body from flowing out. .
体をスライド自在に保持するホルダー部を一体に形成し
た支持部材とからなり、上記注入器本体内に、通路が形
成されるとともに、先端に雄螺子が形成されていて、該
雄螺子によって上記注入器本体を螺合固定し、かつ該注
入器本体に上記ホルダー部を嵌挿して、上記支持部材を
骨折箇所で固定するようにしたことを特徴とする流動体
注入用の骨折治療器具。6. A substantially hollow cylindrical injector main body and a support member integrally formed with a holder portion for slidably holding the injector main body, and a passage is formed in the injector main body. At the same time, a male screw is formed at the tip, the injector body is screwed and fixed by the male screw, and the holder portion is fitted and inserted into the injector body so that the support member is fixed at the fractured portion. A fracture treatment device for injecting fluid, which is characterized in that
形成された上記雄螺子とともに、外部から１又は複数の
螺子で固定されることを特徴とする請求項６に記載の流
動体注入用の骨折治療器具。7. The fluid injection according to claim 6, wherein the support member is externally fixed by one or a plurality of screws together with the male screw formed at the tip of the injector body. Instrument for bone fracture.
て放射状に延びる１又は複数の開口が形成されているこ
とを特徴とする請求項６に記載の流動体注入用の骨折治
療器具。8. The fracture for injecting a fluid according to claim 6, wherein the injector main body is formed with one or a plurality of openings extending radially with respect to the axis of the main body. Therapeutic instrument.
てあらゆる角度範囲で放射状に延びていることを特徴と
する請求項８に記載の流動体注入用の骨折治療器具。9. The fracture treatment device for fluid injection according to claim 8, wherein the opening extends radially in all angular ranges with respect to the axis of the injector body.
注入した液体若しくはペースト状の流動体が流出しない
ように蓋ができることを特徴とする請求項６に記載の流
動体注入用の骨折治療器具。10. The fracture treatment device for injecting a fluid according to claim 6, wherein a lid can be formed to prevent the liquid or paste-like fluid injected at the central or distal end of the injector body from flowing out. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001363948A JP2003159258A (en) | 2001-11-29 | 2001-11-29 | Bone fracture treatment instrument for injecting fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001363948A JP2003159258A (en) | 2001-11-29 | 2001-11-29 | Bone fracture treatment instrument for injecting fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003159258A true JP2003159258A (en) | 2003-06-03 |
Family
ID=19174203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001363948A Pending JP2003159258A (en) | 2001-11-29 | 2001-11-29 | Bone fracture treatment instrument for injecting fluid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003159258A (en) |
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