JPS59155249A - Bone cement injector - Google Patents
Bone cement injectorInfo
- Publication number
- JPS59155249A JPS59155249A JP58027890A JP2789083A JPS59155249A JP S59155249 A JPS59155249 A JP S59155249A JP 58027890 A JP58027890 A JP 58027890A JP 2789083 A JP2789083 A JP 2789083A JP S59155249 A JPS59155249 A JP S59155249A
- Authority
- JP
- Japan
- Prior art keywords
- bone cement
- container
- outer shell
- opening
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002639 bone cement Substances 0.000 title claims description 53
- 239000012530 fluid Substances 0.000 claims description 19
- 238000002156 mixing Methods 0.000 description 9
- 239000000178 monomer Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 4
- 239000008267 milk Substances 0.000 description 4
- 210000004080 milk Anatomy 0.000 description 4
- 235000013336 milk Nutrition 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 210000004394 hip joint Anatomy 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 241001070941 Castanea Species 0.000 description 1
- 235000014036 Castanea Nutrition 0.000 description 1
- 208000023178 Musculoskeletal disease Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 239000000113 methacrylic resin Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8822—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by means facilitating expulsion of fluid from the introducer, e.g. a screw pump plunger, hydraulic force transmissions, application of vibrations or a vacuum
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (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)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は人工関節補綴物を骨セメントを用いて骨に固定
するｖＡＶｃ用いる骨セメント注入器に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bone cement injector using vAVc for fixing an artificial joint prosthesis to a bone using bone cement.
人口の老年化に伴い、近年運動器疾患が激増している。As the population ages, the number of musculoskeletal diseases has increased dramatically in recent years.
股関節や膝関節がその代表的なものであるが、骨の変形
が著しい場合は、人工関節補綴物で置換手術を行う。こ
れは関節部分を切除した後、人工補綴物を骨内に挿入し
、骨セメント（メタアクリル樹脂）で固定するものであ
る。Typical examples are the hip and knee joints, and if the bones are severely deformed, replacement surgery is performed with an artificial joint prosthesis. This involves removing the joint, inserting a prosthesis into the bone, and fixing it with bone cement (methacrylic resin).
第１図を用い、股関節を例にとって説明すると。This will be explained using FIG. 1 and taking the hip joint as an example.
まず骨頭ａを切除し、髄腔ｄ中の海綿状骨を除去して内
部を空洞とする。一定の深さに髄内栓ｅを設置した後、
流動状態の骨セメントＣを流しこみ、これが固化する前
に人工関節補綴物ｆを挿入し。First, the femoral head a is excised, and the cancellous bone in the medullary cavity d is removed to make the inside hollow. After placing the intramedullary plug e at a certain depth,
Bone cement C in a fluid state is poured, and before it hardens, the artificial joint prosthesis f is inserted.
骨セメントの固化により固定を得る。Fixation is obtained by hardening of the bone cement.
流動状態の骨セメントを髄腔中に充填する際に、骨セメ
ント注入器が用いられる。従来用いられてきた骨セメン
ト注入器を第２図を用いて説明する。A bone cement injector is used to fill the medullary canal with bone cement in a fluid state. A conventionally used bone cement injector will be explained using FIG. 2.
まず、乳バチの内に粉末状骨セメントモノマー及び重合
液をあけ、ヘラを用いて混和を充分に行う。First, a powdered bone cement monomer and a polymerization solution are poured into a milk drum, and thoroughly mixed using a spatula.
ドロドロの状態になったところで、内、容器をディスポ
ーザブルのチューブ１の中に移す。一方の開口部をピス
トンリング４で閉鎖した後、骨セメント注入器にチュー
ブをセットする。骨セメント注入器は本体６％把持部８
、ピストン駆動レバー７、ピストン５から構成されてい
る。ピストン駆動レバーを引くと、本体６中の動力伝達
機構を介してピストン５がラチェット機構により前方に
進み、チューブ中の流動状骨セメントＣはノズル３の開
口部２より噴出する。これによって髄腔ｄ中に能率よく
骨セメントを充填しようとするものである。When it becomes mushy, transfer the inner container into the disposable tube 1. After closing one opening with the piston ring 4, the tube is set in the bone cement syringe. The bone cement injector has a main body of 6% and a grip part of 8.
, a piston drive lever 7, and a piston 5. When the piston drive lever is pulled, the piston 5 moves forward by a ratchet mechanism via the power transmission mechanism in the main body 6, and the fluid bone cement C in the tube is ejected from the opening 2 of the nozzle 3. This is intended to efficiently fill the bone cement into the medullary cavity d.
ところが、今述べた従来の骨セメント注入器には以下の
ような欠点があった。However, the conventional bone cement injector just described has the following drawbacks.
（１）乳バチの中で粉末状骨セメントモノマー及び重合
液を混和する際、ヘラでかき混ぜるため、どうしても気
泡の混入が避けられなかった。いったん混入した気泡は
、流動状骨セメントの高粘性のため容易には消失せず、
髄腔中にまで入りこんで、結局固化した骨セメント９１
ｃｍ状の欠陥を生じることＫなる。これは、体重の数倍
にのぼる高い荷重を支持しな妙ればならない骨セメント
に重大な機械的脆弱性をもたらす。(1) When mixing the powdered bone cement monomer and the polymerization liquid in the milk drum, the mixture of air bubbles was unavoidable because the mixture was stirred with a spatula. Once air bubbles are mixed in, they do not disappear easily due to the high viscosity of fluid bone cement.
Bone cement that penetrated into the medullary cavity and eventually solidified 91
This may result in cm-shaped defects. This results in significant mechanical weakness in the bone cement, which must support high loads of several times its body weight.
（１１）チューブに移すためには、流動性の著しい時期
、つまり早期に乳バチでの混和を中断してしまわなけれ
ばならない。このため、粉末状骨セメントモノマーと重
合液の混和が不拘−忙なり、骨セメントの強度を低下さ
せる危険がある。(11) In order to transfer the product to a tube, mixing with the milk bee must be interrupted at a time when fluidity is significant, that is, at an early stage. For this reason, there is a risk that the powdered bone cement monomer and the polymerization liquid are mixed in an unrestricted manner, resulting in a decrease in the strength of the bone cement.
（＋ｉｉ）骨セメントの注入に際して持続的に加圧する
と、流動状骨セメントが髄腔ｄの内壁の凹凸にょく入り
込み、支持力が増大することが知られている。従来の骨
セメント注入器では％機械的にピストンを進める方式の
ため、加圧は間欠的であり。(+ii) It is known that if pressure is continuously applied during injection of bone cement, the fluid bone cement will penetrate into the unevenness of the inner wall of the medullary cavity d, increasing the supporting force. With conventional bone cement injectors, the piston is mechanically advanced, so pressure is applied intermittently.
持続的な加圧は不可能であり、支持力が向上させＫ く
い 。Continuous pressurization is not possible, and it is difficult to improve the supporting capacity.
本発明は１以上述べた従来の骨セメント注入器の欠点を
克服するためになされたもので、その目的は、簡便であ
りながら気泡の混入やムラの無い流動状骨セメントを持
続的加圧のもとに注入するシステムを提供することにあ
る。このため、流動状骨セメントを入れた柔軟性を有す
る内容器１１を、剛な外殻容器１２の中に入れ、前記の
容器１１、容器１２の間の空隙２１に加圧した流体を注
入することＫより、容器１１の内容部を開口部から噴出
させるように構成されたことを特徴とする骨セメント注
入器とした。The present invention has been made in order to overcome the above-mentioned drawbacks of the conventional bone cement injector, and its purpose is to provide a simple method for continuously pressurizing fluid bone cement without air bubbles or unevenness. The purpose is to provide a system for injecting the original. For this purpose, a flexible inner container 11 containing fluid bone cement is placed inside a rigid outer shell container 12, and pressurized fluid is injected into the gap 21 between the containers 11 and 12. From this, the bone cement injector is characterized in that it is configured to eject the contents of the container 11 from the opening.
以下、実施例につき図を用いながら詳細に説明する。第
３図は本発明の骨セメント注入器を示す。Hereinafter, examples will be described in detail using figures. FIG. 3 shows a bone cement injector of the present invention.
流動状骨セメントｃを入れた内容器１１はポリエチレン
製であり、袋状の部分は、圧力に応じて自由に形状を変
化させ得る柔軟性を有している。内容器１１の開口部付
近は、外殻容器１２に固定しやすくするため、やや厚め
に構成されており、一定の強度を有している。外殻容器
１２はステンレス製であり、二ケ所の開口部を有してい
る。前方の開口部は、前記の内容器１１０顆部がきっち
りとはまりこむことによって閉鎖される。後方の開口部
は、ここから容器１１を入れるためのもので蓋１３で密
閉される。このようにして、内容器１１と外殻容器１２
の間ＫＩＳＩＩ隙２１が出来る。ここ例外部から、パイ
プ１９を通じて導かれた高圧窒素ガスを、弁２０で調節
しながら注入する。弁は調節レバー１８でコントロール
する。間ｌ！ｆ２１の圧力が増加することにより内容器
１１の内容物は、開口部１６からノズル２２に導かれ、
その開口部２３より噴出する。これＫよって能率的な骨
セメントの髄腔内充填が可能となる。The inner container 11 containing the fluid bone cement c is made of polyethylene, and the bag-shaped portion has flexibility to freely change its shape in response to pressure. The vicinity of the opening of the inner container 11 is slightly thicker and has a certain strength in order to facilitate fixation to the outer shell container 12. The outer shell container 12 is made of stainless steel and has two openings. The front opening is closed by tightly fitting the condyle of the inner container 110. The rear opening is for inserting the container 11 and is sealed with a lid 13. In this way, the inner container 11 and the outer shell container 12
A KISII gap 21 is created between the two. High pressure nitrogen gas is injected from outside the case through a pipe 19 while being regulated by a valve 20. The valve is controlled by a control lever 18. Between! As the pressure of f21 increases, the contents of the inner container 11 are guided from the opening 16 to the nozzle 22,
It is ejected from the opening 23. This allows for efficient intramedullary filling of bone cement.
実際の操作手順を、第４図を用いながら、より詳しく述
べる。内容器１１中に、開口部１６を通じて、粉末状骨
セメントモノマー、重合液を注入する。つい（、開口部
をヒモつき蓋３１で密閉する。内容器１１はポリエチレ
ン製で柔軟であるため、袋状の部分を外からもむことに
よって内容物はよく混和される。充分く混和後、骨セメ
ント注入器本体の蓋１３をとり、ヒモ３２を入れ、前方
の開口部へ通す。通されたヒモ３２を強く引っ張ると、
）、チ１４が外殻容器前方開口部の縁２４をのりこえ、
スト、パー１５との間に、外殻容器前方開口縁２４をは
さみこむことで、容器１１は外殻容器１２に固定される
。蓋１３で密閉の後、ヒモつき蓋３１をはずし、かわり
にノズル２２を装着する。以上にて充填の前準備は完了
する。注入に際しては、ノズル２２を髄腔ｄ中につっこ
み、調節レバー１８を引けば良い。The actual operating procedure will be described in more detail using FIG. Powdered bone cement monomer and polymerization liquid are injected into the inner container 11 through the opening 16. Then, the opening is sealed with a lid 31 with a string. Since the inner container 11 is made of polyethylene and is flexible, the contents can be mixed well by kneading the bag-shaped part from the outside. After mixing thoroughly, Remove the lid 13 of the bone cement injector body, insert the string 32, and pass it through the opening in the front.Pull the string 32 that has been passed through strongly.
), the tip 14 passes over the edge 24 of the front opening of the outer shell container,
The container 11 is fixed to the outer shell container 12 by sandwiching the outer shell container front opening edge 24 between the outer shell container 15 and the outer shell container 15. After sealing with the lid 13, the lid 31 with string is removed and the nozzle 22 is attached in its place. With the above steps, the preparation for filling is completed. For injection, it is sufficient to insert the nozzle 22 into the medullary cavity d and pull the adjustment lever 18.
以上述べた骨セメント注入器には、次の利点がある。The bone cement injector described above has the following advantages.
（１）粉末状骨セメントモノマー及び重合液の混和を、
袋状の内容器１１を揉むようにして行うため、従来の如
く、ヘラでかき混ぜる場合に比して、気泡の混和が少な
い。さらに、混和に先立ち、余分な空気を押し出してお
いて蓋３１をするととＫより、一層気泡の混入防止は完
壁となる。これ釦より骨セメント内泡状欠陥による脆弱
性を予防できる。(1) Mixing of powdered bone cement monomer and polymerization liquid,
Since the bag-shaped inner container 11 is kneaded, fewer air bubbles are mixed in compared to the conventional method of stirring with a spatula. Furthermore, if the excess air is pushed out before mixing and the lid 31 is closed, air bubbles can be further prevented from entering the mixture. This button can prevent fragility caused by bubble-like defects within the bone cement.
（１１）粉末状骨セメントモノマー及び重合液の混和は
本来少なくとも３〜４分間行うのが望ましいとされてい
る。ところが、３分近くなると粘稠度が増すために乳バ
チからチューブ１への移しがえが困難であり、従来の骨
セメント注入器を用いる場合は、混和を１分半程度で打
ち切っていたのが実状であった。本発明の場合は、混和
する容器１１を、そのまま注入に用いることができるた
め、移しかえる必要がなく、かなり粘稠度が高くなる４
くらいまで充分によく混和を行うことができる。(11) It is considered desirable to mix the powdered bone cement monomer and polymerization solution for at least 3 to 4 minutes. However, as the viscosity increases after about 3 minutes, it is difficult to transfer from the milk drumstick to tube 1, and when using a conventional bone cement injector, mixing is stopped after about 1 and a half minutes. was the actual situation. In the case of the present invention, since the mixing container 11 can be used as is for injection, there is no need to transfer it, and the viscosity becomes considerably high.
It is possible to mix thoroughly until the
これによってム２のなｈ均質な流動状骨セメントの作成
が可能となる。This makes it possible to create a highly homogeneous fluid bone cement.
（ｉｉ＋）流動状骨セメントの圧出を、空Ｍ２１に高圧
流体の持続的注入によって行うため、噴出する流動状骨
セメントには、持続的な高圧がかがる。これによって髄
腔ｄ内壁の微小な凹凸への流れ込みが確実となり、骨セ
メントの固化後の支持力が増大する。(ii+) Since the fluidized bone cement is extruded by continuous injection of high-pressure fluid into the air M21, continuous high pressure is applied to the fluidized bone cement that is ejected. This ensures the flow into the minute irregularities on the inner wall of the medullary cavity d, increasing the supporting force of the bone cement after solidification.
この他、従来のやり方では、乳針等に骨セメントの残滓
がこびりつき、後始末が大変であったが、本発明では、
混和はディスポーザブルなポリエチレン容器内で行われ
るため、その必要がない利点がある。In addition, in the conventional method, bone cement residue stuck to the breast needle etc., making it difficult to clean up afterwards, but with the present invention,
Advantageously, blending is not necessary since it is carried out in a disposable polyethylene container.
以上述べてきたように１本発明によれば、極めて簡便な
構成でありながら、従来の骨セメント注入器の欠点を克
服し、治療効果の向上に大きな寄与をなしうるものであ
る。As described above, according to the present invention, although it has an extremely simple configuration, it can overcome the drawbacks of conventional bone cement injectors and greatly contribute to improving therapeutic effects.
なお、本発明は実施例忙限定されるものではない。内容
器１１のデザインは、袋状、円筒状何でもよく、要する
に揉んだり、加圧により内容部を圧出させ得るだけの柔
軟性があれば良く、材質もポリエチレンに限られない。Note that the present invention is not limited to the embodiments. The design of the inner container 11 may be bag-like or cylindrical, as long as it is flexible enough to squeeze out the contents by kneading or applying pressure, and the material is not limited to polyethylene.
開口部付近の形状、も、外殻容器１２への固定が可能で
あれば何でも良い。The shape of the vicinity of the opening may be any shape as long as it can be fixed to the outer shell container 12.
蓋３１は、必ずしも必要でなく、袋状の部分の上縁をク
リ、グ等で止めても良い。ヒモ３２で外殻容器１２中を
通すかわり罠、円筒状の外殻容器１２の上半分を開けら
れるよう罠して内容器１１を格納しても良い。ノズル２
２は、本実施例では着脱可能としたが、はじめから容器
１１と一体化しておいても良い。またノズルの形状は、
注入部位の形状忙応じて変化させつる。さらＶＣ，本実
施例では、粉末状骨セメントモノマーは別のパッケージ
から移してくることにしているが、最初から内容器ｌｌ
中に入れた形でパッケージすることも可能である。外殻
容器１２はステンレス製が望ましいが、一定以上の剛性
があれば何でも良い。また。The lid 31 is not necessarily required, and the upper edge of the bag-shaped portion may be secured with a chestnut, a gouge, or the like. Instead of passing the string 32 through the outer shell container 12, the inner container 11 may be stored using a trap or a trap so that the upper half of the cylindrical outer shell container 12 can be opened. Nozzle 2
2 is made detachable in this embodiment, but may be integrated with the container 11 from the beginning. In addition, the shape of the nozzle is
Change the shape of the injection site depending on the shape of the injection site. Furthermore, in this example, the powdered bone cement monomer is transferred from another package, but the inner container is
It is also possible to package it inside. The outer shell container 12 is preferably made of stainless steel, but any material may be used as long as it has a certain level of rigidity. Also.
一部もしくは全部を透８Ａｌｃして、内部の状態を透視
できるようにすることも有用である。注入する高圧流体
として、本実施例では、多くの手術室に配管されている
高圧窒素ガスを用いることにしたが、加圧注入可能な流
体であれば何でも五＜１例えば圧縮空気、＊素、水等の
液体でも良い。また必ずしも本実施例のように配管パイ
プを用いる必要はなく、携帯型のガスボンベを用いても
良い。It is also useful to make part or all of it transparent so that the internal state can be seen through. In this example, we used high-pressure nitrogen gas, which is piped in many operating rooms, as the high-pressure fluid to be injected. However, any fluid that can be injected under pressure may be used, such as compressed air, A liquid such as water may be used. Further, it is not necessarily necessary to use a plumbing pipe as in this embodiment, and a portable gas cylinder may be used.
要するに１流動状骨セメントを入れた柔軟性を有する容
器を、剛な外殻容器内に格納し、両容器間の空隙に加圧
流体を注入し、柔軟な容器がしぼられるようＫして、内
容物の流動状骨セメントが開口部より噴出するような構
成であれば何でも良い。In short, a flexible container containing fluid bone cement is stored in a rigid outer shell container, pressurized fluid is injected into the gap between both containers, and the flexible container is squeezed. Any structure may be used as long as the fluid bone cement content is ejected from the opening.
なお、ここで言う剛とは柔軟な容器のそれと比較したう
えでの相対的なもので、厚手のポリエチレン製でも良く
、要するに１加圧流体を注入した際に変形が柔軟な容器
に比して微小であれば良い。Note that rigidity here is relative to that of a flexible container; it may be made of thick polyethylene, and in other words, when one pressurized fluid is injected, the deformation will be greater than that of a flexible container. It is fine as long as it is minute.
第１図は人工股関節補綴物の使用状態を示す図。
第２図は従来の骨セメント注入器を示す図。
第３図は本発明の骨セメント注入器を示す断面図。
第４図は骨セメント混和時の内容器を示す断面図。
ａ・・・大腿骨頭 ｂ・・・大腿骨Ｃ・・・骨セメ
ント ｄ・・・髄腔ｅ・・・髄内栓 ｆ・・
・人工関節補綴物１・・・チューブ ２・・・ノ
ズル開口部３・・・ノズル ４・・・ピストン
リング５・・・ピストン ６・・・本体７・・・
駆動レバー ８・・・把持部１１・・・内’４器
１２・・・外殻容器１３・・・後方蓋 １
４・・・ノツチ１５・・・スト、パー １６・・・内
容器の開口１部１７・・・把持部 １８・・・弁
調節レバー１９・・・パイプ ２ｏ・・・調節弁２
１川空魔 ２２・・・ノズル２３・・・ノズル
開口部 ２４・・・外殻容器前方開口部縁
３１・・・蓋
３２…ヒモ
特許出願人
有限会社友信開発FIG. 1 is a diagram showing the state of use of the artificial hip joint prosthesis. FIG. 2 is a diagram showing a conventional bone cement injector. FIG. 3 is a sectional view showing the bone cement injector of the present invention. FIG. 4 is a sectional view showing the inner container when mixing bone cement. a...Femoral head b...Femur C...Bone cement d...Medullary cavity e...Intramedullary plug f...
・Artificial joint prosthesis 1...Tube 2...Nozzle opening 3...Nozzle 4...Piston ring 5...Piston 6...Body 7...
Drive lever 8...gripping part 11...inner 4 units
12... Outer shell container 13... Rear lid 1
4... Notch 15... Strike, par 16... Opening 1 part of inner container 17... Gripping part 18... Valve adjustment lever 19... Pipe 2o... Control valve 2
1 Kawakuma 22... Nozzle 23... Nozzle opening 24... Outer shell container front opening edge
31... Lid 32... String patent applicant Toshin Kaihatsu Co., Ltd.
Claims (1)
１を、剛な外殻容器１２の中に入れ、前記の容器１１．
容器１２０間の空隙２１に加圧した流体を注入すること
Ｋより、容器１１の内容器を開口部から噴出させるよう
に構成されたことを特徴とする骨セメント注入器。l) Flexible inner container 1 containing fluid bone cement
1 into a rigid outer shell container 12, and the container 11.
A bone cement injector characterized in that, by injecting pressurized fluid into the gap 21 between the containers 120, the inner container of the container 11 is ejected from the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58027890A JPS6040852B2 (en) | 1983-02-21 | 1983-02-21 | bone cement injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58027890A JPS6040852B2 (en) | 1983-02-21 | 1983-02-21 | bone cement injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59155249A true JPS59155249A (en) | 1984-09-04 |
| JPS6040852B2 JPS6040852B2 (en) | 1985-09-12 |
Family
ID=12233482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58027890A Expired JPS6040852B2 (en) | 1983-02-21 | 1983-02-21 | bone cement injector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6040852B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016097302A (en) * | 2014-11-25 | 2016-05-30 | ヘレウス メディカル ゲーエムベーハー | Cement cartridge dispensing device having rolling clamping bodies |
| JP2016152914A (en) * | 2015-02-20 | 2016-08-25 | ヘレウス メディカル ゲーエムベーハー | Dispensing device with spring tongues for cement cartridges |
-
1983
- 1983-02-21 JP JP58027890A patent/JPS6040852B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016097302A (en) * | 2014-11-25 | 2016-05-30 | ヘレウス メディカル ゲーエムベーハー | Cement cartridge dispensing device having rolling clamping bodies |
| JP2016152914A (en) * | 2015-02-20 | 2016-08-25 | ヘレウス メディカル ゲーエムベーハー | Dispensing device with spring tongues for cement cartridges |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6040852B2 (en) | 1985-09-12 |
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