JP3739360B2 - Fracture reinforcement plate - Google Patents

Fracture reinforcement plate Download PDF

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Publication number
JP3739360B2
JP3739360B2 JP2003015727A JP2003015727A JP3739360B2 JP 3739360 B2 JP3739360 B2 JP 3739360B2 JP 2003015727 A JP2003015727 A JP 2003015727A JP 2003015727 A JP2003015727 A JP 2003015727A JP 3739360 B2 JP3739360 B2 JP 3739360B2
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Japan
Prior art keywords
bone
fracture
plate
view
radius
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Expired - Fee Related
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JP2003015727A
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Japanese (ja)
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JP2004223042A (en
Inventor
雅行 釜野
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MMT Co Ltd
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MMT Co Ltd
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    • 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
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、骨折部補強プレートに関する。
【０００２】
【従来の技術】
一般に、骨折をした場合、図５に示すような複数のボルト挿通用小孔20が貫設された骨折部補強プレートを埋設して、骨折部を整復している（例えば、非特許文献１参照）。
【０００３】
【非特許文献１】
株式会社日本エム・ディ・エム、「エース シンメトリー 上肢用プレート システム」カタログ
【０００４】
【発明が解決しようとする課題】
しかし、ボルト挿通用小孔20は小さいため、骨折部補強プレートを付設した後に、骨折による骨欠損部に自家骨（例えば、腸骨）や人工骨を埋設することが至難であった。
【０００５】
そこで、本発明は、骨折部補強プレートを付設した後に、骨欠損部に自家骨や人工骨を容易かつ確実に埋設することができる骨折部補強プレートを提供することを目的とする。
【０００６】
【課題を解決するための手段】
上述の目的を達成するために、本発明に係る骨折部補強プレートは、骨部位の骨折部の整復のために付設する骨折部補強プレートに於て、全体形状が、幅狭帯板部と、該幅狭帯板部の一端に形成される幅広部とから成り、該幅広部に、上記骨折部のうち骨欠損部に移植用の骨を埋設可能とする正面視形状が倒立略三角形状の骨移植用窓部を貫設し、該骨移植用窓部の正面視に於ける面積Ｓを、 0.4cm2 ≦Ｓ≦ 1.5cm2 に設定したものである。
【０００７】
【発明の実施の形態】
以下、実施の形態を示す図面に基づき、本発明を詳説する。
【０００８】
図１及び図２は、本発明に係る骨折部補強プレートＰとして、例えば、橈骨遠位端プレートＰ1 の場合に於ける使用状態を示す。この橈骨遠位端プレートＰ1 は、橈骨遠位端Ｔ1 を骨折した場合に、骨折部Ｒを整復するために付設される。Ｙは、骨折線を示す。橈骨遠位端プレートＰ1 は、生体親和性良好なチタン合金、ステンレス鋼等から成る。橈骨遠位端プレートＰ1 は、骨折により骨移植を要する橈骨遠位端Ｔ1 に、固定スクリューＫにて付設される。そして、骨折による橈骨Ｂの骨欠損部Ｘに、骨Ａが埋設（移植）されている。この骨Ａは、橈骨遠位端プレートＰ1 を付設後に埋設したものである。骨Ａは、自家骨（例えば、腸骨）又は人工骨から成る。
【０００９】
図３及び図４は、橈骨遠位端プレートＰ1 を示す。この橈骨遠位端プレートＰ1 は、骨移植用窓部１が貫設されている。具体的には、橈骨遠位端プレートＰ1 は、全体形状が、幅狭帯板部２と、幅狭帯板部２の一端に形成される幅広部３とから成る。そして、幅広部３に、正面視形状が倒立略三角形状の骨移植用窓部１が形成されている。この骨移植用窓部１によって、骨折部Ｒ（図２参照）のうち骨欠損部Ｘに移植用の骨Ａが埋設可能となる。
【００１０】
骨移植用窓部１の正面視に於ける面積Ｓは、 0.4cm2 ≦Ｓ≦ 1.5cm2 に設定される。面積Ｓが、Ｓ＜ 0.4cm2 のときは、骨Ａ（図２参照）を骨移植用窓部１を通過させて埋設するのが困難となる。また、 1.5cm2 ＜Ｓのときは、橈骨遠位端プレートＰ1 全体の強度が低下する。
【００１１】
４は橈骨遠位端Ｔ1 側に貫設された固定スクリューＫ（図２参照）挿通用の孔を示し、５は長手方向略中間位置に貫設された固定スクリューＫ挿通用の長孔を示し、６は基端寄りに貫設された固定スクリューＫ挿通用の孔を示す。
【００１２】
なお、本発明は、設計変更可能であって、例えば、骨移植用窓部１の正面視形状は、矩形や円形等に形成するも良い。しかも、上述の橈骨遠位端Ｔ1 に限らず、他の骨部位Ｔに適用することも、自由である。また、（橈骨遠位端Ｔ1 に限らず、) 橈骨近位端に適用したり、脚の骨等の身体の各部の骨にも本発明は適用自由である。
【００１３】
【発明の効果】
本発明は、上述の如く構成されるので、次に記載する効果を奏する。
【００１４】
骨折部補強プレートＰを付設した後に、骨折による橈骨Ｂの骨欠損部Ｘに、窓部１を通過して移植用の骨Ａを容易かつ確実に埋設することができる。
また、十分な強度を確保しつつ、骨移植用窓部１を通過して移植用の骨Ａを埋込む手術を容易に行ない得る。
さらに、最も骨折を発生しやすい適切な位置に、骨移植用窓部１が形成され、かつ、骨部位Ｔの形状に合致しており、骨折による骨欠損部Ｘに、容易かつ確実に骨Ａを埋設して移植することができる。
【図面の簡単な説明】
【図１】本発明の使用状態を示す正面図である。
【図２】骨格をもって示した使用状態説明用正面図である。
【図３】実施の一形態を示す斜視図である。
【図４】正面図である。
【図５】従来例を示す正面図である。
【符号の説明】
１ 骨移植用窓部
２ 幅狭帯板部
３ 幅広部
Ａ 骨
Ｐ 骨折部補強プレート
Ｒ 骨折部
Ｓ 面積
Ｔ 骨部位[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fractured part reinforcing plate.
[0002]
[Prior art]
In general, when a bone fracture occurs, the fracture portion is reduced by embedding a fracture portion reinforcing plate through which a plurality of small bolt insertion holes 20 as shown in FIG. 5 are penetrated (see, for example, Non-Patent Document 1). ).
[0003]
[Non-Patent Document 1]
Japan MDM Co., Ltd. “Ace Symmetry Upper Limb Plate System” Catalog [0004]
[Problems to be solved by the invention]
However, since the small hole 20 for inserting the bolt is small, it is very difficult to embed autologous bone (for example, iliac bone) or artificial bone in the bone defect portion due to the fracture after attaching the fracture portion reinforcing plate.
[0005]
Then, an object of this invention is to provide the fracture part reinforcement plate which can embed an autologous bone or an artificial bone in a bone defect part easily and reliably, after attaching a fracture part reinforcement plate.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, a fractured part reinforcing plate according to the present invention is a fractured part reinforcing plate provided for reduction of a fractured part of a bone part . The narrow band plate part is formed with a wide part formed at one end, and the wide part has an inverted substantially triangular shape in a front view that allows a bone for transplantation to be embedded in a bone defect part of the fractured part . the window for bone graft was penetrated, the in area S in front view for the bone graft window, but set to 0.4cm 2 ≦ S ≦ 1.5cm 2.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
[0008]
FIGS. 1 and 2 show a use state in the case of, for example, the distal radius plate P 1 as the fracture portion reinforcing plate P according to the present invention. This radius distal end plate P 1 is attached to reduce the fractured portion R when the radius distal end T 1 is fractured. Y indicates a fracture line. The radius distal end plate P 1 is made of titanium alloy, stainless steel or the like having good biocompatibility. The distal radius plate P 1 is attached to the distal radius T 1 that requires bone grafting by a fracture with a fixing screw K. The bone A is embedded (implanted) in the bone defect X of the rib B due to the fracture. This bone A is embedded after the rib distal end plate P 1 is attached. The bone A is composed of autologous bone (for example, iliac bone) or artificial bone.
[0009]
3 and 4 show the distal radius plate P 1. The bone distal end plate P 1 has a bone grafting window 1 penetrating therethrough. Specifically, the radius distal end plate P 1 is composed of a narrow strip portion 2 and a wide portion 3 formed at one end of the narrow strip portion 2. The wide portion 3 is formed with a bone graft window portion 1 having a substantially triangular inverted shape in front view. The bone grafting window 1 enables the bone A for grafting to be embedded in the bone defect X in the fractured part R (see FIG. 2).
[0010]
The area S in the front view of the bone grafting window 1 is set to 0.4 cm 2 ≦ S ≦ 1.5 cm 2 . When the area S is S <0.4 cm 2 , it is difficult to embed the bone A (see FIG. 2) through the bone grafting window 1. Further, when 1.5 cm 2 <S, the strength of the entire distal radius plate P 1 decreases.
[0011]
Reference numeral 4 denotes a hole for inserting the fixing screw K (see FIG. 2) penetrating the distal end of the radius T 1, and reference numeral 5 denotes an elongated hole for inserting the fixing screw K penetrating at a substantially intermediate position in the longitudinal direction. Reference numeral 6 denotes a hole for inserting the fixing screw K penetrating toward the proximal end.
[0012]
The design of the present invention can be changed. For example, the frontal shape of the bone grafting window portion 1 may be formed in a rectangular shape or a circular shape. Moreover, the present invention is not limited to the above-mentioned distal end T 1 of the radius but can be freely applied to other bone sites T. Further, the present invention can be applied to the proximal end of the radius (not limited to the distal radius end T 1 ) or to bones of various parts of the body such as leg bones.
[0013]
【The invention's effect】
Since this invention is comprised as mentioned above, there exists an effect described below.
[0014]
After the fracture portion reinforcing plate P is attached, the bone A for transplantation can be easily and reliably embedded in the bone defect portion X of the rib B due to the fracture through the window portion 1.
Further, it is possible to easily perform an operation of passing through the bone grafting window portion 1 and embedding the bone B for grafting while ensuring sufficient strength.
Furthermore, the bone grafting window portion 1 is formed at an appropriate position where the fracture is most likely to occur, and conforms to the shape of the bone site T, so that the bone A can be easily and reliably added to the bone defect portion X caused by the fracture. Can be implanted and transplanted.
[Brief description of the drawings]
FIG. 1 is a front view showing a use state of the present invention.
FIG. 2 is a front view for use state explanation shown with a skeleton.
FIG. 3 is a perspective view showing an embodiment.
FIG. 4 is a front view.
FIG. 5 is a front view showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bone transplant window part 2 Narrow strip board part 3 Wide part A Bone bone P Fracture part reinforcement plate R Fracture part S Area T Bone part

Claims (1)

骨部位（Ｔ）の骨折部（Ｒ）の整復のために付設する骨折部補強プレート（Ｐ）に於て、全体形状が、幅狭帯板部（２）と、該幅狭帯板部（２）の一端に形成される幅広部（３）とから成り、該幅広部（３）に、上記骨折部（Ｒ）のうち骨欠損部（Ｘ）に移植用の骨（Ａ）を埋設可能とする正面視形状が倒立略三角形状の骨移植用窓部（１）を貫設し、該骨移植用窓部（１）の正面視に於ける面積（Ｓ）を、 0.4cm 2 ≦Ｓ≦ 1.5cm 2 に設定したことを特徴とする骨折部補強プレート。 In the fracture portion reinforcing plate (P) provided for reduction of the fracture portion (R) of the bone site (T), the overall shape is the narrow strip portion (2) and the narrow strip portion ( 2) and a wide portion (3) formed at one end of the bone fracture portion (X) of the fractured portion (R). The bone (A) for transplantation can be embedded in the wide portion (3). The bone grafting window portion (1) whose front view shape is an inverted substantially triangular shape is penetrated, and the area (S) in the front view of the bone grafting window portion (1) is 0.4 cm 2 ≦ S fracture reinforcing pre over preparative, characterized in that set to ≦ 1.5 cm 2.
JP2003015727A 2003-01-24 2003-01-24 Fracture reinforcement plate Expired - Fee Related JP3739360B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003015727A JP3739360B2 (en) 2003-01-24 2003-01-24 Fracture reinforcement plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003015727A JP3739360B2 (en) 2003-01-24 2003-01-24 Fracture reinforcement plate

Publications (2)

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JP2004223042A JP2004223042A (en) 2004-08-12
JP3739360B2 true JP3739360B2 (en) 2006-01-25

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2886535B1 (en) * 2005-06-06 2008-04-25 Surfix Technologies Sa DEVICE FOR ARRESSING A SUPPORT, ASSEMBLY PART FOR SUCH A DEVICE AND METHOD OF ARRANGING A DEVICE TO A SUPPORT
US8177818B2 (en) * 2005-09-08 2012-05-15 Securos, Inc. Fixation plate
KR101711003B1 (en) * 2009-11-27 2017-02-28 신세스 게엠바하 plating concept for distal radial fractures

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