JP2004223042A - Reinforcement plate for fractured bone segment - Google Patents

Reinforcement plate for fractured bone segment Download PDF

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Publication number
JP2004223042A
JP2004223042A JP2003015727A JP2003015727A JP2004223042A JP 2004223042 A JP2004223042 A JP 2004223042A JP 2003015727 A JP2003015727 A JP 2003015727A JP 2003015727 A JP2003015727 A JP 2003015727A JP 2004223042 A JP2004223042 A JP 2004223042A
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JP
Japan
Prior art keywords
bone
fractured
fracture
grafting
reinforcement plate
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
Application number
JP2003015727A
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Japanese (ja)
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JP3739360B2 (en
Inventor
Masayuki Kamano
雅行 釜野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MMT KK
MMT Co Ltd
Original Assignee
MMT KK
MMT Co Ltd
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 MMT KK, MMT Co Ltd filed Critical MMT KK
Priority to JP2003015727A priority Critical patent/JP3739360B2/en
Publication of JP2004223042A publication Critical patent/JP2004223042A/en
Application granted granted Critical
Publication of JP3739360B2 publication Critical patent/JP3739360B2/en
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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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcement plate for a fractured bone segment capable of easily and securely embedding an autologous or artificial bone to a defective bone section after embedding the reinforcement plate for the fractured bone segment. <P>SOLUTION: This reinforcement plate for the fractured bone segment P auxiliary provided to reintegrate the fractured bone segment R of a bone part T comprises a window part 1 for bone grafting enabling embedding of a bone for grafting A to penetrate through a bone defective section X in the fractured bone segment R. An area S of the window part 1 for bone grafting on a front view is set to be 0.4 cm<SP>2</SP>≤S≤1.5 cm<SP>2</SP>. The overall shape is formed by a narrow width belt plate part 2 and a wide width part 3 formed at one end of the narrow width belt plate part 2. The window part 1 for bone grafting having a front view of an inverted almost triangular shape is formed in the wide width part 3. <P>COPYRIGHT: (C)2004,JPO&NCIPI

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、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骨移植用窓部を貫設したものである。
【０００７】
また、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。また、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、正面視形状が倒立略三角形状の骨移植用窓部を形成したものである。
【０００８】
【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。
【０００９】
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。
【００１０】
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。
【００１１】
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。
【００１２】
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。
【００１３】
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。
【００１４】
【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。
【００１５】
（請求項１によれば）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。
（請求項２によれば）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。
（請求項３によれば）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 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 site, and is used for transplantation into a bone defect part of the fractured part A bone grafting window portion that allows the bone to be embedded is penetrated.
[0007]
In addition, the area S in the front view of the bone graft window is set to 0.4 cm 2 ≦ S ≦ 1.5 cm 2 . In addition, the overall shape includes a narrow strip portion and a wide portion formed at one end of the narrow strip portion, and a bone graft window portion having a generally triangular inverted shape in front view is formed in the wide portion. Is formed.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
[0009]
1 and 2, as the fracture reinforcing plate P according to the present invention, for example, shows the in use state when the distal radius plate P 1. 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 distal radius plate P 1 is biocompatible good titanium alloy, a stainless steel or the like. The distal radius plate P 1 is attached to the distal radius end T 1 requiring 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. The bone A is obtained by embedding the distal radius plate P 1 after attached. The bone A is composed of autologous bone (for example, iliac bone) or artificial bone.
[0010]
3 and 4 show the distal radius plate P 1. The distal radius plate P 1, the window unit 1 for bone graft is disposed through. Specifically, the distal radius 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).
[0011]
The area S in the front view of the bone graft window portion 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.
[0012]
4 shows a hole for fixing the screw K (see FIG. 2) through which is formed through the distal radius T 1 side, 5 a long hole for fixing screws K inserted which is pierced in the substantially longitudinal middle position Reference numeral 6 denotes a hole for inserting the fixing screw K penetrating toward the proximal end.
[0013]
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, not only the distal radius T 1 of the above, it is free to apply to other bone sites T. Furthermore, (not limited to the distal radius T 1,) or to apply the radius proximal end, the present invention into the bone of each part of the body such as bone of the leg is free application.
[0014]
【The invention's effect】
Since this invention is comprised as mentioned above, there exists an effect described below.
[0015]
(According to claim 1) After the fracture portion reinforcing plate P is attached, the bone A for transplantation can be embedded easily and reliably through the window portion 1 in the bone defect portion X of the rib B caused by the fracture. it can.
(According to claim 2) It is possible to easily perform the operation of passing through the bone grafting window portion 1 and implanting the bone B for transplantation while ensuring sufficient strength.
(According to claim 3) The bone grafting window portion 1 is formed at an appropriate position where the fracture is most likely to occur, and matches the shape of the bone site T. The bone A can be embedded and transplanted easily and reliably.
[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 (3)

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、上記骨折部（Ｒ）のうち骨欠損部（Ｘ）に移植用の骨（Ａ）を埋設可能とする骨移植用窓部（１）を貫設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 bone (A) for transplantation into the bone defect portion (X) of the fracture portion (R). A fractured portion reinforcing plate having a bone grafting window portion (1) penetrating therein. 骨移植用窓部（１）の正面視に於ける面積（Ｓ）を、 ０．４ｃｍ２ ≦Ｓ≦ １．５ｃｍ２ に設定した請求項１記載の骨折部補強プレート。The fracture portion reinforcing plate according to claim 1, wherein an area (S) of the bone graft window (1) in a front view is set to 0.4 cm 2 ≤ S ≤ 1.5 cm 2 . 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、正面視形状が倒立略三角形状の骨移植用窓部（１）を形成した請求項１又は２記載の骨折部補強プレート。The overall shape is composed of a narrow strip (2) and a wide section (3) formed at one end of the narrow strip (2), and the wide section (3) has a front view shape. The fracture portion reinforcing plate according to claim 1 or 2, wherein an inverted substantially triangular bone transplant window portion (1) is formed.
JP2003015727A 2003-01-24 2003-01-24 Fracture reinforcement plate Expired - Fee Related JP3739360B2 (en)

Priority Applications (1)

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Applications Claiming Priority (1)

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

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JP3739360B2 JP3739360B2 (en) 2006-01-25

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008541970A (en) * 2005-06-06 2008-11-27 サーフィックス テクノロジーズ Device fixed to support, assembly part used in the device, and method of fixing device to support
US8177818B2 (en) * 2005-09-08 2012-05-15 Securos, Inc. Fixation plate
KR20120112377A (en) * 2009-11-27 2012-10-11 신세스 게엠바하 Plating concept for distal radial fractures

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008541970A (en) * 2005-06-06 2008-11-27 サーフィックス テクノロジーズ Device fixed to support, assembly part used in the device, and method of fixing device to support
US8177818B2 (en) * 2005-09-08 2012-05-15 Securos, Inc. Fixation plate
US8715324B2 (en) 2005-09-08 2014-05-06 Securos, Inc. Fixation plate
KR20120112377A (en) * 2009-11-27 2012-10-11 신세스 게엠바하 Plating concept for distal radial fractures
JP2013512042A (en) * 2009-11-27 2013-04-11 シンセス ゲゼルシャフト ミット ベシュレンクテル ハフツング Planar fixation concept for distal radius fractures
US9370386B2 (en) 2009-11-27 2016-06-21 DePuy Synthes Products, Inc. Plating concept for distal radial fractures
KR101711003B1 (en) * 2009-11-27 2017-02-28 신세스 게엠바하 plating concept for distal radial fractures

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