JPH0664616U - 骨固定板構造 - Google Patents
骨固定板構造Info
- Publication number
- JPH0664616U JPH0664616U JP042245U JP4224591U JPH0664616U JP H0664616 U JPH0664616 U JP H0664616U JP 042245 U JP042245 U JP 042245U JP 4224591 U JP4224591 U JP 4224591U JP H0664616 U JPH0664616 U JP H0664616U
- Authority
- JP
- Japan
- Prior art keywords
- fixing
- bone
- pin
- plate
- fixing 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
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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
-
- 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
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
-
- 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
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
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)
- Prostheses (AREA)
- Surgical Instruments (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
(57)【要約】
【目的】 骨又は脊椎節を丈夫に固定できる骨固定板構
造を実現すること。 【構成】 本考案の骨固定板構造にはそれぞれ一端が固
定しようとする骨又は脊椎節に挿入するネジ21で、他
端はネジ付固定端22を有する矩形又は類似形の柱であ
る複数の固定ピン20がある。固定端22の付近には止
め突起23が形成されている。固定板10の一側には複
数の固定穴11が配置され、固定端22が固定ピン20
の止め突起23まで達するように置く。固定板10の他
側付近には複数のネジ付穴12があり、ネジ付ピン30
を受け入れる。複数の固定装置40は固定板10の固定
穴11を有する側を固定ピン20の固定端22に固定さ
せる。複数のネジ付ピン30はそれぞれ一端がネジ付穴
12を通して骨又は脊椎節を固定し、他端は固定板10
のネジ付穴12に対して保持するヘッド32を形成す
る。ヘッド32の付近にはネジ山33があり、固定板1
0のネジ付穴12に螺合させる。
造を実現すること。 【構成】 本考案の骨固定板構造にはそれぞれ一端が固
定しようとする骨又は脊椎節に挿入するネジ21で、他
端はネジ付固定端22を有する矩形又は類似形の柱であ
る複数の固定ピン20がある。固定端22の付近には止
め突起23が形成されている。固定板10の一側には複
数の固定穴11が配置され、固定端22が固定ピン20
の止め突起23まで達するように置く。固定板10の他
側付近には複数のネジ付穴12があり、ネジ付ピン30
を受け入れる。複数の固定装置40は固定板10の固定
穴11を有する側を固定ピン20の固定端22に固定さ
せる。複数のネジ付ピン30はそれぞれ一端がネジ付穴
12を通して骨又は脊椎節を固定し、他端は固定板10
のネジ付穴12に対して保持するヘッド32を形成す
る。ヘッド32の付近にはネジ山33があり、固定板1
0のネジ付穴12に螺合させる。
Description
【0001】
本考案は新規な骨固定板構造に関する。詳しくは骨又は脊椎節の固定に使われ る骨固定板構造に関する。
【0002】
従来の骨固定板構造は、殆どが二つの近隣可動骨の表面上に固定板を置き、こ の固定板の穴を通してネジを挿入し、これらの骨の表面に固定板を固定するもの である。この先行技術の構造では、固定板が弛み易い。又、固定板と骨の間の接 触面は(曲がりが違うので)完全に合わないで、ネジのヘッドにより固定板を骨 に押すので、ネジも弛む。脊椎固定用の固定板、例えば、I−板〔Hansen A, Yu an, MD, et al. Spine, 13(3), 278,1988S参照〕; C.A.S.F. Plate by ArcoMed; A.O. Plate & Screw by Synthes; 及び Swiss and B.G. Spinal Plate by Howm edica U.K., は、いずれもネジで固定板を脊椎節に緊迫に押しつけるが、ネジ、 固定板及び脊椎節を一体に結合していない。従って、これらの板は上記固定板構 造と同じく弛み易い欠点がある。尚、従来の脊椎節固定構造、例えば、金田装置 は棒とナットで各脊椎節を連結している。このような構造のものを手術に応用す る場合、棒を金田板の両ネジ間に往来させる必要があり、手術を困難にさせる。
【0003】 又、外側ナットが予め設置されていないので、手術口を広くする必要があり、手 術時間を長引かせ、手術出血をより多くさせる。従って、金田装置は普通の骨固 定には適用できない。
【0004】
本考案の課題は骨又は脊椎節を丈夫に固定できる骨固定板構造を提供すること にある。
【0005】 本考案の他の課題は固定板、固定ピン、固定装置及びネジ付ピンよりなる骨固 定板構造を提供することにある。
【0006】
上記の課題に鑑みて、本考案の骨固定板構造は一端が骨又は脊椎節を固定する ネジを形成し、他端がネジ付固定端を有する矩形又は類似形の柱で、該柱の付近 に止め突起を形成している複数の固定ピンと;一側に該固定柱端を固定ピン上の 止め突起まで達せられるよう配置している複数の固定穴と他側にネジを受け入れ る複数のネジ付穴を配置している固定板と;該固定穴を有する側の固定板を固定 ピンの固定柱端に固定させる複数の固定装置と;それぞれ一端は固定板のネジ付 穴を通して固定板を骨又は脊椎節に固定させ、他端は固定板のネジ付穴に対して 保持させるヘッドである複数のネジ付ピンよりなる。ネジ付ピンのヘッド付近に はネジ山があり、固定板のネジ付穴と螺合するようにしている。
【0007】
以下図面を参照して本考案を更に詳しく説明をするが、本考案の範囲を限定す るものではない。図1は本考案の実施例による骨固定板系統を説明する斜視図で ある。
【0008】 本考案はそれぞれ一端が固定しようとする骨又は脊椎節に挿入するネジ21であ る複数の固定ピン20を含む新規の骨固定板構造を提供する。他端はネジ付固定端 22を有する矩形又は類似形の柱であり、固定端22の付近には止め突起23を形成し てある。固定板10の一側には複数の固定穴11が配置され、固定端22が固定ピン20 の止め突起23まで達するように置く。固定板10の他側付近には複数のネジ付穴12 があり、ネジ付ピン30を受け入れる。複数の固定装置40は固定端22と結合し、固 定板10の固定穴11を有する側を固定ピン20の固定端22に固定させる。複数のネジ 付ピン30はそれぞれ一端31がネジ付穴12を通して骨又は脊椎節を固定し、他端は 固定板10のネジ付穴12に対して保持するヘッド32を形成する。ヘッド32の付近に はネジ山があり、固定板10のネジ付穴12に螺合させる。
【0009】 一般骨に適用され得る材料、例えば、ステンレス316LVM, Ti-6-4、及びコバル トとニッケルの合金等の人体に挿入できる金属なら全て本考案の構成部品を作る ために使われる。本考案の固定板10は任意に曲げた板であり、固定しようとする 骨( 脊椎節 )の形状に従い形成させる。この例では、複数の固定穴11はそれぞれ 好ましくは矩形に類似し、その四隅の短側の一対がアーク状をなしている。又固 定穴11の凹底は丁度固定ピン20の止め突起23に合うように形成している。
【0010】 固定ピン20の頂端22は矩形又は類似形の柱であり、ここにも固定穴11に似 た四隅と短側の一対がアーク状であることを必要とする。固定板10の固定穴11を 通すことにより、柱22はこのような固定穴11に限定され、ピン20はしっかり定着 され、全く回転がなく、弛みを防止できる。
【0011】 いかなる適用できる固定装置40も本考案の固定板構造に使える。すなわち、単 固定又は双固定用ナット、更には固定ネジでも固定効果を補強することができる 。
【0012】 ネジ付ピン30はその頂端付近のネジ山33により固定板10のネジ付穴12上のネジ 山と直接結合され、極めて優れた固定が得えられる。又、自己固定ネジをこの固 定機能の補強に使われる。
【0013】 骨又は脊椎節を固定する際、固定ピン20とネジ付ピン30の軸は鋭角で交わるこ とが好ましい。特に軸は骨又は脊椎節の中心の方向へ向くことが好ましい。
【0014】 本考案は固定ピン頂端を骨( 又は脊椎節 )内に固定し、その止め突起23と固定 装置40で固定板10に固定( 圧迫する代わりに )することにより、固定板、固定ピ ンと骨( 又は脊椎節 )が一体となる方法を最初に考案し、従来のピンで固定板10 を骨( 又は脊椎節 )に緊迫する固定方法を改良した。本構造には、ネジ付ピン30 もその一端を骨( 又は脊椎節 )に固定し、他端32付近のネジ山33で固定板10と結 合させることにより、骨( 又は脊椎節 )、固定板10、ネジ付ピン30が一体となる 。第1図中、10は固定板を、11は類矩形固定穴を、12はネジ付穴を、20は固定ピ ンを、21はネジ部で、22は固定端を、23は止め突起を、30はネジ付ピンを、31は ピン部を、32はヘッドを、33はネジ山を、40はナットをそれぞれ示す。本骨固定 板系統は固定板10の固定穴11を固定ピン20の固定端22に置き、固定ピン20の止め 突起23まで達して、固定ピン20のネジ部21を骨又は脊椎節に固定する。又、ネジ 付ピン30はネジ付穴12を通して骨又は脊椎節に入り、そのネジ山33をネジ付穴12 のネジ山と螺合し、固定効果の補強を達成する。
【図1】本考案の実施例による骨固定板構造を説明する
斜視図である。
斜視図である。
10・・・固定板 11・・・固定穴 12・・・ネジ付穴 20・・・固定ピン 21・・・ネジ部 22・・・固定端 23・・・止め突起 30・・・ネジ付ピン 31・・・ピン部 32・・・ヘッド 33・・・ネジ山 40・・・固定装置(ナット)
Claims (3)
- 【請求項1】 (a) 骨又は脊椎節を固定するネジ付
端、固定端及びネジ付端と固定端の間の止め突起をそれ
ぞれ有する複数の固定ピンと; (b) 第一の複数の固定穴と更に複数のネジ付穴を備
え、前記固定ピンの前記固定端を回転させないように前
記止め突起上に置き、骨又は脊椎節に対する動きを防止
する固定板と; (c) 骨又は脊椎節に螺合する第一ネジ付部と前記固
定板の前記ネジ付穴に螺合する第二ネジ付部をそれぞれ
有する複数のネジ付ピンと; (d) 前記固定ピンの前記固定端を通して当該固定ピ
ンに組み立てる前記固定板を保持した後、当該固定ピン
の固定端と結合させる複数の固定装置; からなる隣接骨又は脊椎節を固定する骨固定板構造。 - 【請求項2】 請求項1において、前記固定板が曲がり
板であることを特徴とする骨固定板構造。 - 【請求項3】 請求項1または2において、前記固定ピ
ンと前記ネジ付ピンはいずれも大体これらが螺合すべき
骨又は脊椎節の中心に向かい鋭角に交わることを特徴と
する骨固定板構造。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/615,390 US5085660A (en) | 1990-11-19 | 1990-11-19 | Innovative locking plate system |
US07/615,390 | 1990-11-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0664616U true JPH0664616U (ja) | 1994-09-13 |
JPH0710734Y2 JPH0710734Y2 (ja) | 1995-03-15 |
Family
ID=24465151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1991042245U Expired - Fee Related JPH0710734Y2 (ja) | 1990-11-19 | 1991-06-06 | 骨固定板構造 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5085660A (ja) |
EP (1) | EP0486762B1 (ja) |
JP (1) | JPH0710734Y2 (ja) |
DE (1) | DE69109817T2 (ja) |
ES (1) | ES2075274T3 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003509107A (ja) * | 1999-09-13 | 2003-03-11 | ジンテーズ アクチエンゲゼルシャフト クール | 骨板システム |
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-
1990
- 1990-11-19 US US07/615,390 patent/US5085660A/en not_active Expired - Fee Related
-
1991
- 1991-06-06 JP JP1991042245U patent/JPH0710734Y2/ja not_active Expired - Fee Related
- 1991-07-15 DE DE69109817T patent/DE69109817T2/de not_active Expired - Fee Related
- 1991-07-15 ES ES91111784T patent/ES2075274T3/es not_active Expired - Lifetime
- 1991-07-15 EP EP91111784A patent/EP0486762B1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2003509107A (ja) * | 1999-09-13 | 2003-03-11 | ジンテーズ アクチエンゲゼルシャフト クール | 骨板システム |
Also Published As
Publication number | Publication date |
---|---|
JPH0710734Y2 (ja) | 1995-03-15 |
DE69109817T2 (de) | 1995-09-21 |
EP0486762B1 (en) | 1995-05-17 |
US5085660A (en) | 1992-02-04 |
DE69109817D1 (de) | 1995-06-22 |
EP0486762A1 (en) | 1992-05-27 |
ES2075274T3 (es) | 1995-10-01 |
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