JP3218465B2 - Osteosynthesis devices - Google Patents

Osteosynthesis devices

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Publication number
JP3218465B2
JP3218465B2 JP2001013430A JP2001013430A JP3218465B2 JP 3218465 B2 JP3218465 B2 JP 3218465B2 JP 2001013430 A JP2001013430 A JP 2001013430A JP 2001013430 A JP2001013430 A JP 2001013430A JP 3218465 B2 JP3218465 B2 JP 3218465B2
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injection
femur
bone
member
cylindrical portion
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JP2001161704A (en
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和正 斎藤
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株式会社メディテック
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7097Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants
    • A61B17/7098Stabilisers 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/74Devices for the head or neck or trochanter of the femur
    • A61B17/742Devices 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
    • A61B17/746Devices 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

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、主として大腿骨の骨欠損部における骨片の固定等に用いられる骨接合装置に関する。 The present invention relates primarily relates to osteosynthesis devices for use in fixing such bone fragments at bone defect of a femur.

【0002】 [0002]

【従来の技術】従来のこの種の骨接合装置としては、例えば大腿骨の転子部から頸部を通じて頭部に亘って挿着される骨ねじ部材と、前記転子部において挿着され、前記骨ねじ部材を軸方向でスライディングが自在に拘束する円筒部及び該円筒部と一体に設けられ、大腿骨の外側部において添着される板部からなる内固定部材と、前記板部を大腿骨に固定する骨釘部材とから構成されるものがある。 2. Description of the Related Art As this type of conventional osteosynthesis device, for example a bone screw member from the trochanter of the femur over the head through the neck is inserted, it is inserted in the trochanter, the bone sliding the screw member in the axial direction is provided integrally with the cylindrical portion and the cylindrical portion for restraining freely, the inner fixing member comprising a plate portion which is affixed at the outer portion of the femur, the femur the plate portion there are those composed of a bone nail member to be fixed to.

【0003】かかる骨接合装置によれば、例えば大腿骨の頸部における骨折部を固定することができるので、早期離床及び早期リハビリテーションとして必須である荷重歩行が実現されることとなり、ひいては筋力低下・筋萎縮による運動機能障害や痴呆症の進行の予防が可能となる。 [0003] According to the osteosynthesis device, for example it is possible to fix the fracture in the neck of the femur, it is possible to load the walking essential as early mobilization and early rehabilitation is achieved, hence muscle weakness prevention of the progression of motor dysfunction and dementia caused by muscle atrophy becomes possible.

【0004】ところが、このタイプの骨接合装置では、 [0004] However, in the bone joining device of this type,
骨ねじ部材が骨欠損部より挿着されることに起因して、 Due to the bone screw member is inserted from the bone defect portion,
予想外に過剰なスライディングが発生する場合があり、 There is a case where excessive sliding occurs unexpectedly,
これが、骨癒合の遅延化、変形治癒による短縮跛行といった深刻な事態を招くとい問題がある。 This is, there is a delay of bone healing, stomach and lead to a serious situation such as shortening claudication due to the deformation healing problem.

【0005】このような問題を解決する技術的な手段として、骨欠損部に対してリン酸カルシウム骨ペースト等の注入材を注入するという方法が開発されている。 [0005] As a technical means for solving such problems, a method of injecting the injection material such as calcium phosphate bone paste have been developed for the bone defect. つまり、骨欠損部の固定後荷重歩行に先行して骨欠損部の隙間にリン酸カルシウム骨ペーストを填補することとすれば、これが約一週間で海綿骨の二倍程度の硬度に達し骨癒合が促進され、過剰なスライディングの発生が予防され、変形治癒に起因する跛行等の歩行障害を未然に防止できることとなる。 That is, if it precedes the loading walking after fixation of bone defect to compensatory calcium phosphate bone paste in a gap of a bone defect, which bone reaches approximately twice the hardness of the cancellous bone union in about a week accelerated by excess generation of sliding it is prevented, and thus can prevent gait disturbance lameness etc. due to malunion in advance.

【0006】 [0006]

【発明が解決しようとする課題】しかしながら、このタイプの骨接合装置では、骨欠損部の固定後に注入管を用いて骨欠損部に向かって注入動作をしようとすると、内固定部材が障害となり、注入管を刺入することができない。 [SUMMARY OF THE INVENTION However, in this type of osteosynthesis device, when using the injection tube after fixation of the bone defect to try injection operation towards the bone defect, the inner fixing member becomes an obstacle, not be able to penetrate the injection tube.

【0007】この場合において、皮切長さを長くして術野を広くし、大腿骨側面の露出範囲を拡大することにより障害となる内固定部材を避けるという方法では、感染症の予防、創傷治癒等の観点からみて妥当ではないので、避けなければならない。 [0007] In this case, to widen the operating field by increasing the skin Setsucho is, in the method of avoiding the inner fixing member made of an obstacle by enlarging the exposure range of the femoral side, the prevention of infectious diseases, wounds since it is not reasonable from the viewpoint of healing, etc., it must be avoided.

【0008】そこで、本発明の課題は、大腿骨側面の露出範囲の拡大により障害となる内固定部材を避けるという方法を回避しながら、内固定部材の固定後骨欠損部に対し注入管を用いた注入材の注入が自由にできる骨接合装置を提供することにある。 It is therefore an object of the present invention, while avoiding the method of avoiding the inner fixing member that interfere with the expansion of the exposure range of the femoral side, use an infusion tube with respect to the fixed post bone defect of internal fixation member injection had been injected material to provide an osteosynthesis device that can freely.

【0009】 [0009]

【課題を解決するための手段】すなわち、第一発明に係る骨接合装置は、大腿骨の外側部において添着される板部を含む内固定部材と、前記板部を大腿骨に固定する骨釘部材とからなり、前記内固定部材には、骨欠損部に対する注入管を用いた注入材の注入動作を確保する注入孔が設けられることを特徴としている。 Means for Solving the Problems That is, the bone nail osteosynthesis device according to the first invention, an inner fixing member including a plate portion which is affixed at the outer portion of the femur, the said plate portion is fixed to the femur consists of a member, said fixing member is characterized in that injection hole to secure the injection operation of the injection material using the injection tube to the bone defect portion is provided.

【0010】第二発明に係る骨接合装置は、大腿骨の転子部から頸部を通じて頭部に亘って挿着される骨ねじ部材と、前記転子部において挿着され、前記骨ねじ部材を軸方向でスライド自在に拘束する円筒部及び該円筒部と一体に設けられ、大腿骨の外側部において添着される板部からなる内固定部材と、前記板部を大腿骨に固定する骨釘部材とからなり、前記内固定部材には、骨欠損部に対する注入管を用いた注入材の注入動作を確保する注入孔が設けられることを特徴としている。 [0010] osteosynthesis device according to the second invention, the bone screw member which is inserted over the head through the neck from trochanteric of the femur, is inserted in the trochanter, the bone screw member slidably provided integrally with the cylindrical portion and the cylindrical portion for restraining the axial, bone nail and an inner fixing member consisting of a plate portion which is affixed at the outer portion of the femur, the said plate portion is fixed to the femur consists of a member, said fixing member is characterized in that injection hole to secure the injection operation of the injection material using the injection tube to the bone defect portion is provided.

【0011】これらの発明に係る骨接合装置によれば、 According to the osteosynthesis device according to these inventions,
内固定部材に骨欠損部に対する注入材の注入動作を確保する注入孔を備えるので、大腿骨側面の露出範囲の拡大により障害となる内固定部材を避けるという方法を回避しながら、内固定部材の固定後注入管を用いて行う骨欠損部への注入材の注入が自由にできるという効果が得られる。 Since the inner fixing member comprises an injection hole to secure the injection operation of the injection member to the bone defect, while avoiding a method of avoiding the inner fixing member that interfere with the expansion of the exposure range of the femur side, of the inner fixing member injection of the injection material into the bone defect performed using fixed after injection tube is obtained is an effect that it freely.

【0012】これらの発明において、前記注入孔としては、骨欠損部に対する注入管を用いた注入材の注入動作が確保され得るものであればよく、それゆえ、それが、 [0012] In these inventions, as the injection hole, as long as the injection operation of the injection material using the injection tube to the bone defect can be ensured, therefore, it,
どのような形状で設けられているか、どの程度の大きさや方向で設けられているか等の別を問わない。 What shape or are provided, regardless of other like or provided in any order of magnitude and direction.

【0013】ただし、より的確で安定性の高い注入動作を実現しようとする観点からすれば、前記注入孔としては、板部に設けられ、骨欠損部に対する注入動作における注入管に対応した大きさ及び方向を有することが好ましい。 [0013] However, from the viewpoint to be realized more accurate and highly stable injection operation, as the injection hole is provided in the plate portion, a size corresponding to the injection tube in the implantation operation to bone defects and preferably has a direction.

【0014】一方、第二発明において、前記注入孔としては、第一発明における前記注入孔と同様、骨欠損部に対する注入管を用いた注入材の注入動作が確保され得るものであればよく、それゆえ、それが、どの部位で設けられているか、どのような形状で設けられているか等の別を問わない。 [0014] On the other hand, in the second invention, as the injection hole, similar to the injection hole in the first invention, as long as the injection operation of the injection material using the injection tube to the bone defect may be secured, Therefore, it is either provided at any site, regardless another like or provided in any shape.

【0015】ただし、より自由度の大きく円滑な注入動作を実現しようとする観点からすれば、前記注入孔は、 [0015] However, from the viewpoint to be realized more freedom of large smooth injection operation, the injection holes,
前記円筒部の大転子側及び小転子側の少なくともいずれか一方に設けられ、軸方向に長い形状を呈することが好ましい。 Provided on at least one of the large trochanter side and lesser trochanter side of the cylindrical portion, it is preferable to present a long shape in the axial direction.

【0016】 [0016]

【発明の実施の形態】以下、添付図面に基づいて本発明の実施の形態を詳細に説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings.

【0017】◎実施の形態1 図1は本発明の実施の形態1に係る骨接合装置の概略構成を外側から示す斜視図、該骨接合装置の概略構成を内側から示す斜視図である。 [0017] ◎ perspective view showing from the outside a schematic configuration of Embodiment 1 Figure 1 is osteosynthesis device according to the first embodiment of the present invention, is a perspective view showing a schematic configuration of a bone joining device from the inside.

【0018】なお、この実施の形態1に係る接合装置についての以下の説明は、第二発明に係る接合装置のみならず、第一発明に係る接合装置についての説明をも包含するものである。 [0018] The following description of the bonding apparatus according to the first embodiment, not bonded device only according to the second invention, but also an explanation of the bonding apparatus according to the first invention.

【0019】また、この実施の形態1に係る接合装置は、大腿骨頸部骨折部に適用されるものであるが、大腿骨の範囲にあれば、部位の別を問わず、骨折部に限定されるものでもなく、骨粗鬆部等を含めて骨欠損部に広く適用できるものである。 [0019] The bonding apparatus according to the first embodiment, but is applied to a femoral neck fracture, if the range of the femur, regardless of other parts, limited to fracture nor is it intended to be, in which including osteoporosis unit like can be widely applied to a bone defect.

【0020】この実施の形態1において、骨接合装置は、これらの図に示すように、骨ねじ部材たるラグスクリュー1と、内固定部材たるチューブプレート2と、骨釘部材たるコーティカルスクリュー3とから構成されている。 [0020] In the first embodiment, osteosynthesis device, as shown in these figures, the lag screw 1 serving bone screw member, and the inner fixing member serving tube plate 2, a bone nail member serving cortical screws 3 It is constructed from. 以下、各構成要素について詳細に説明する。 Follows is a detailed description of each component.

【0021】(1)ラグスクリュー1 ラグスクリュー1は、これらの図に示すように、大腿骨10の転子部15から頸部16を通じて頭部17に亘って挿着されるものである。 [0021] (1) the lag screw 1 lag screw 1, as shown in these drawings, in which over the head 17 is inserted through the neck 16 from the trochanter 15 of the femur 10.

【0022】つまり、ラグスクリュー1は、荷重歩行に起因する頭部17と大腿骨10間における骨折部の転位を防ぐ役割を果たすものであり、この実施の形態1においては、整形外科手術に頻用されているものを用いている。 [0022] That is, the lag screw 1 is plays a role to prevent the dislocation of the fracture between the head 17 and the femur 10 due to the load walking, in the first embodiment, frequently used in orthopedic surgery It is used those that are.

【0023】なお、ラグスクリュー1の挿着は、これらの図に示すように、頭部17を貫かない深度でなされるが、これは、股関節の機能を維持するためである。 [0023] Incidentally, insertion of the lag screw 1, as shown in these figures, but is made at a depth not penetrated the head 17, which is to maintain the function of the hip joint.

【0024】(2)チューブプレート2 チューブプレート2は、これらの図に示すように、転子部15において挿着されている。 [0024] (2) tube plate 2 tube plate 2, as shown in these figures, is inserted in the rotor 15.

【0025】このチューブプレート2は、具体的には、 [0025] The tube plate 2, specifically,
これらの図に示すように、ラグスクリュー1を軸方向でスライディングが自由な状態で拘束する円筒部2aと、 As shown in these drawings, a cylindrical portion 2a of the sliding lag screw 1 in the axial direction is restrained in a free state,
円筒部2aと一体に設けられ、大腿骨10の外側部において添着される板部2bとからなっている。 Cylindrical portion 2a and is provided integrally, consist a plate portion 2b, which is affixed at the outer side of the femur 10.

【0026】このようなチューブプレート2においては、これらの図に示すように、骨欠損部に対する注入管11を用いた注入材たるリン酸カルシウム骨ペースト1 [0026] In such a tube plate 2, as shown in these figures, the injection material serving calcium phosphate bone paste 1 with the injection pipe 11 to the bone defect
2の注入動作を確保する注入孔4が設けられている。 Injection hole 4 is provided to secure the second injection operation.

【0027】この注入孔4は、具体的には、これらの図に示すように、円筒部2aの大転子13側及び小転子1 [0027] The injection hole 4, specifically, as shown in these figures, the cylindrical portion 2a greater trochanter 13 side and the lesser trochanter 1
4側に設けられている円筒部注入孔4aと、板部2bに設けられている板部注入孔4bとからなっている。 A cylindrical portion injection hole 4a provided in the 4 side, formed of a plate-part injection hole 4b provided in the plate portion 2b.

【0028】板部注入孔4bは、図1及び図2並びに図3(a)に示すように、骨欠損部に対する注入動作における注入管11に対応した大きさ及び方向を有している。 The plate portions injection hole 4b, as shown in FIGS. 1 and 2 and FIG. 3 (a), and has a magnitude and direction corresponding to the injection pipe 11 in the injection operation for bone defect. すなわち、板部注入孔4bは、注入管11が挿入された場合に、注入管11を骨欠損部に対する方向に設定する役割を果たす。 In other words, the plate portion injection hole 4b, when the infusion tube 11 has been inserted, the injection tube 11 serves to set the direction for the bone defect. これにより、より的確で安定性の高い注入動作が実現することとなる。 Thus, high stability injection operation is to realize a more accurate.

【0029】円筒部注入孔4aは、図1及び図2並びに図3(b)に示すように、軸方向に長い形状を呈している。 The cylindrical portion injection hole 4a, as shown in FIGS. 1 and 2 and FIG. 3 (b), exhibits a long shape in the axial direction. すなわち、円筒部注入孔4aは、板部注入孔4bによっては設定できない大転子13方向頸部16や小転子14方向に注入管11を設定する役割を果たす。 That is, the cylindrical portion injection hole 4a serves to set the injection tube 11 into the greater trochanter 13 direction neck 16 and the lesser trochanter 14 direction can not be set by the plate portions injection hole 4b. これにより、より自由度の大きい、円滑な注入動作が実現することとなる。 Thus, the degree of freedom greater, smooth injection operation is to be realized.

【0030】(3)コーティカルスクリュー3 コーティカルスクリュー3は、これらの図に示すように、板部2bを貫いた状態で大腿骨10に締着されるものであり、チューブプレート2を大腿骨10に固定する役割を果たすものである。 [0030] (3) cortical screws 3 cortical screws 3, as shown in these drawings, which are fastened to the femur 10 in a state of penetrating the plate portion 2b, femur tube plates 2 It plays a role of fixing the 10.

【0031】つまり、このような骨接合装置によれば、 [0031] That is, according to such osteosynthesis devices,
これらの図に示すように、チューブプレート2に骨欠損部に対するリン酸カルシウム骨ペースト12の注入動作を確保する注入孔4を備えているので、観血整復後であってチューブプレート2の固定後において、注入管11 As shown in these figures is provided with the injection hole 4 to ensure the operation of injecting the calcium phosphate bone paste 12 to the bone defect in the tube plate 2, after the fixed tube plate 2 even after invasive reduction, injection tube 11
を用いて行う骨欠損部へのリン酸カルシウム骨ペースト12の注入が自由にできるという効果が得られる。 Injection of calcium phosphate bone paste 12 into the bone defect performed using the effect is obtained that can be freely.

【0032】加えて、大腿骨10側面の露出範囲を拡大しなくても、チューブプレート2が障害となることがなく、感染症等の危険性を回避できるという効果も得られる。 [0032] In addition, without enlarging the exposed range of femur 10 side, without the tube plate 2 becomes an obstacle, there is also an effect of avoiding the danger of infection.

【0033】◎実施の形態2 図4は本発明の実施の形態2に係る骨接合装置の概略構成を示す斜視図である。 [0033] ◎ Second Embodiment FIG. 4 is a perspective view showing a schematic configuration of the osteosynthesis device according to the second embodiment of the present invention. なお、実施の形態1と同様な構成要素については実施の形態1と同様な符号を付してここではその詳細な説明を省略する。 Incidentally, detailed description thereof is omitted here denoted by the same reference numerals as in the first embodiment are given to the same components as in the first embodiment.

【0034】この実施の形態2に係る骨接合装置は、同図に示すように、実施の形態1と略同様であるが、手術上の便宜から、チューブプレート2として近位側と遠位側とに分割構成してなるものが採用されている点のみが、実施の形態1と異なっている。 The osteosynthesis device according to the second embodiment, as shown in the drawing, is substantially the same as in the first embodiment, the convenience of operation, the proximal and distal side as a tube plate 2 only in that those obtained by dividing configured bets are employed, it is different from that of the first embodiment.

【0035】しかし、このチューブプレート2は、最終的な取付形態として、一体状態となって大腿骨10の外側に添着されるものである点では、実施の形態1におけるチューブプレート2と異ならない。 [0035] However, the tube plate 2, as a final mounting configuration, in terms are intended to be affixed to the outside of the femur 10 together state, it does not differ from the tube plate 2 in the first embodiment.

【0036】したがって、この実施の形態2に係る骨接合装置によれば、前記した実施の形態1と同様な効果が得られることになる。 [0036] Thus, according to the osteosynthesis device according to the second embodiment, so that the same effect as the first embodiment described above can be obtained.

【0037】 [0037]

【発明の効果】本発明に係る骨接合装置によれば、以上のように構成したため、大腿骨側面の露出範囲の拡大により障害となる内固定部材を避けるという方法を回避しながら、内固定部材の固定後に骨欠損部に対する注入管を用いた注入材の注入が自由に行い得ることになる。 According to the osteosynthesis device according to the present invention, since the structure described above, while avoiding the method of avoiding the inner fixing member that interfere with the expansion of the exposure range of the femoral side, the inner fixing member so that the injection of the injection material using the injection tube to the bone defect portion can perform freely after fixation.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の実施の形態1に係る骨接合装置の概略構成を外側から示す斜視図である。 [1] a schematic configuration of the osteosynthesis device according to the first embodiment of the present invention is a perspective view showing from the outside.

【図2】本発明の実施の形態1に係る骨接合装置の概略構成を内側から示す斜視図である。 The schematic structure of the osteosynthesis device according to the first embodiment of the present invention; FIG is a perspective view showing from the inside.

【図3】本発明の実施の形態1に係る骨接合装置の作用を示す側面図(一部断面図)である。 Is a side view showing the action of the osteosynthesis device according to the first embodiment of the present invention; FIG (partial sectional view).

【図4】本発明の実施の形態2に係る骨接合装置の概略構成を分解的に示す斜視図である。 4 is a perspective view showing disassembled manner the general configuration of the osteosynthesis device according to the second embodiment of the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

1…ラグスクリュー(骨ねじ部材) 2…チューブプレート(内固定部材) 2a…円筒部 2b…板部 3…コーティカルスクリュー(骨釘部材) 4…注入孔 4a…円筒部注入孔 4b…板部注入孔 10…大腿骨 11…注入管 12…リン酸カルシウム骨ペースト(注入材) 13…大転子 14…小転子 15…転子部 16…頸部 17…頭部 1 ... lag screw (bone screw) 2 ... tube plates (inner stationary member) 2a ... cylindrical portion 2b ... plate portion 3 ... cortical screws (bone nail member) 4 ... injection hole 4a ... cylindrical portion injection hole 4b ... plate portion injection hole 10 ... femur 11 ... injection pipe 12 ... calcium phosphate bone paste (injection member) 13 ... greater trochanter 14 ... lesser trochanter 15 ... trochanter 16 ... neck 17 ... head

フロントページの続き (58)調査した分野(Int.Cl. 7 ,DB名) A61B 17/56 - 17/92 A61F 2/28 - 2/48 Of the front page Continued (58) investigated the field (Int.Cl. 7, DB name) A61B 17/56 - 17/92 A61F 2/28 - 2/48

Claims (3)

    (57)【特許請求の範囲】 (57) [the claims]
  1. 【請求項1】 大腿骨の転子部から頸部を通じて頭部に亘って挿着される骨ねじ部材と、 前記転子部において挿着され、前記骨ねじ部材を軸方向でスライド自在に拘束する円筒部及び該円筒部と一体に設けられ、大腿骨の外側部において添着される板部からなる内固定部材と、 前記板部を大腿骨に固定する骨釘部材とからなり、 前記板部には、大腿骨頚部骨折部への注入材の注入が自由にできるように、該大腿骨頚部骨折部に対して注入管を刺入するための注入孔が設けられることを特徴とする、 骨接合装置。 A bone screw member which is inserted 1. A over the head through the neck from trochanteric of the femur, is inserted in the trochanter, slidably constraining said bone screw member in the axial direction to integrally provided with the cylindrical portion and the cylindrical portion becomes an inner fixing member comprising a plate portion which is affixed at the outer portion of the femur, the plate portion and a bone nail member for fixing to the femur, the plate portion to, as the injection of grout into the femoral neck fracture can be freely injection hole for piercing the injection tube is characterized in that it is provided for the femoral neck fractures, bone bonding apparatus.
  2. 【請求項2】 大腿骨の転子部から頸部を通じて頭部に亘って挿着される骨ねじ部材と、 前記転子部において挿着され、前記骨ねじ部材を軸方向でスライド自在に拘束する円筒部及び該円筒部と一体に設けられ、大腿骨の外側部において添着される板部からなる内固定部材と、 前記板部を大腿骨に固定する骨釘部材とからなり、 前記円筒部には、大腿骨頚部骨折部への注入材の注入が自由にできるように、該大腿骨頚部骨折部に対して注入管を刺入するための注入孔であって、該円筒部の大転子側及び小転子側の少なくともいずれか一方に設けられ、 A bone screw member which is inserted wherein over the head through the neck from trochanteric of the femur, is inserted in the trochanter, slidably constraining said bone screw member in the axial direction to integrally provided with the cylindrical portion and the cylindrical portion becomes an inner fixing member comprising a plate portion which is affixed at the outer portion of the femur, the plate portion and a bone nail member for fixing to the femur, the cylindrical portion to, as the injection of grout into the femoral neck fracture can be freely, a injection hole for piercing the injection tube relative to the femoral neck fractures, large rolling of the cylindrical portion provided on at least one of the slave and the lesser trochanter side,
    軸方向に長い形状を呈するものが設けられることを特徴とする、 骨接合装置。 Wherein the one that exhibits a long shape in the axial direction are provided, osteosynthesis device.
  3. 【請求項3】 前記内固定部材は、近位側と遠位側とに分割して構成されるとともに、大腿骨の外側部において一体状態となって添着されるものであることを特徴とする、 請求項1又は請求項2に記載の骨接合装置。 Wherein said fixing member while being configured by being divided into a proximal and distal, characterized in that intended to be affixed together state in the outer side of the femur osteosynthesis device according to claim 1 or claim 2.
JP2001013430A 2001-01-22 2001-01-22 Osteosynthesis devices Expired - Fee Related JP3218465B2 (en)

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US7951176B2 (en) 2003-05-30 2011-05-31 Synthes Usa, Llc Bone plate
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US8574268B2 (en) 2004-01-26 2013-11-05 DePuy Synthes Product, LLC Highly-versatile variable-angle bone plate system
US7229445B2 (en) 2004-06-21 2007-06-12 Synthes (Usa) Bone plate with bladed portion
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