JPH0669483B2 - A shape-recovering molding tool that is the prototype of orthopedic investment material - Google Patents
A shape-recovering molding tool that is the prototype of orthopedic investment materialInfo
- Publication number
- JPH0669483B2 JPH0669483B2 JP3004541A JP454191A JPH0669483B2 JP H0669483 B2 JPH0669483 B2 JP H0669483B2 JP 3004541 A JP3004541 A JP 3004541A JP 454191 A JP454191 A JP 454191A JP H0669483 B2 JPH0669483 B2 JP H0669483B2
- Authority
- JP
- Japan
- Prior art keywords
- orthopedic
- prototype
- investment material
- shape
- shape memory
- 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.)
- Expired - Fee Related
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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7055—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant connected to sacrum, pelvis or skull
-
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7053—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant with parts attached to bones or to each other by flexible wires, straps, sutures or cables
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurosurgery (AREA)
- Materials For Medical Uses (AREA)
- Surgical Instruments (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は整形を必要とする脊椎、
後頭骨、頸椎、腰椎等に装着固定して矯正応力を与える
整形埋没材の原型である形状復帰型の型取器具に関す
る。FIELD OF THE INVENTION The present invention relates to a spine requiring reshaping,
The present invention relates to a shape-recovering mold making tool that is a prototype of an orthopedic investment material that is attached and fixed to an occipital bone, a cervical vertebra, a lumbar vertebra, or the like to apply orthodontic stress.
【０００２】[0002]
【従来の技術】従来より脊椎、後頭骨、頸椎、腰椎その
他の部位で整形を必要とする骨に装着固定される整形埋
没材の例としては、ステンレス製の棒状体で先端を屈曲
したもの、２cm程の幅で３〜４０cmの長さの矩形又は長
円形の棒状体に屈曲整形したもの等が知られている。こ
れらの整形埋没材は、例えば図４に示すように、後頭
部、頸椎の整形部位に適合するよう棒状体の各部を複数
のベンディング用器具やメジャー等を用いて微妙に屈曲
したり、ひねったりし、細いステンレスワイヤーやボル
トナット等を用いて骨上に装着固定し、これら棒状体の
弾性力を利用して矯正応力を与えるようにしている。2. Description of the Related Art Conventionally, as an example of an orthopedic investment material that is attached and fixed to a bone that needs to be orthopedic in the spine, occipital bone, cervical vertebra, lumbar vertebrae, or the like, a tip made of a stainless steel rod is bent, It is known that a rectangular or oval rod-shaped body having a width of about 2 cm and a length of 3 to 40 cm is bent and shaped. For example, as shown in FIG. 4, these orthopedic investment materials are used to bend or twist each part of the rod-like body by using a plurality of bending instruments or measures so as to fit the orthopedic region of the occipital region and cervical spine. It is mounted and fixed on the bone by using a thin stainless wire, bolts and nuts and the like, and the elastic force of these rod-shaped bodies is used to give a corrective stress.
【０００３】[0003]
【発明が解決しようとする課題】しかるに、これら整形
埋没材は骨に装着固定され、長時間身体内にとどめなけ
ればならず、また、殺菌温度にも耐える材質であること
が要求され、ステンレス鋼、銀、ニッケル、チタン等の
比較的高価な金属類が用いられると共に一度特定の整形
部位に適合させるために屈曲や変形を加えたものは、再
度他の部位に使用しようとしても、微妙な変形を元に戻
すことが極めて困難とされてきた。又、整形部位の形に
適合するための変形や屈曲も手術の途中でこれを行うに
は長時間を要したり、ベンディング用器具による屈曲が
短時間では適切にできず、患者に身体的、精神的苦痛を
与える等の問題点もあった。However, these orthopedic investment materials must be attached and fixed to bones and must remain in the body for a long time, and must be materials that can withstand the sterilization temperature. If relatively expensive metals such as silver, nickel, titanium, etc. are used and are bent or deformed once to fit a specific shaping site, subtle deformation will occur even if they are used again for other sites. It has been considered extremely difficult to restore. In addition, it takes a long time to perform the deformation and bending to adapt to the shape of the orthopedic site during the operation, and the bending by the bending instrument cannot be appropriately performed in a short time, which makes the patient physically, There were also problems such as giving mental distress.
【０００４】本発明の目的は、上記のような問題点を解
消して、整形を必要とする部位に適合した整形埋没材を
型取る際の原型として、短時間で正確な型取りができ、
これに合わせて実際に整形部位に取付ける整形埋没材を
容易に造ることができるようにするものであり、この原
型は何度でも使用可能な形状復帰型の型取器具として提
供しようとするものである。The object of the present invention is to eliminate the above-mentioned problems and to perform accurate molding in a short time as a prototype for molding a shaped investment material suitable for a region requiring shaping,
In accordance with this, it is intended to make it easy to actually form an orthopedic investment material that will be attached to the orthopedic site. is there.
【０００５】[0005]
【課題を解決するための手段】本発明の目的を達成する
ため、脊椎、後頭骨、頸椎、腰椎その他整形を必要とす
る部位に装着固定され、その部位に適正な矯正応力を与
える整形埋没材を型取る際に用いる原型として、Ｔｉ−
Ｎｉ系、Ｃｕ系の形状記憶合金又はポリイソプレン系の
形状記憶合成樹脂により、柔軟性のある直径２〜６mm、
長さ３〜４０cmの目盛付直線棒、矩形又は長円形棒状体
を設けた整形埋没材の原型である形状復帰型の型取器具
とした。In order to achieve the object of the present invention, an orthopedic investment material that is attached and fixed to the spine, occipital bone, cervical vertebra, lumbar spine or any other site requiring orthodontics, and gives proper orthodontic stress to the site. As a prototype used when molding
Ni-based, Cu-based shape memory alloy or polyisoprene-based shape memory synthetic resin, flexible diameter 2-6 mm,
A shape-returning mold making tool, which is a prototype of an orthopedic investment material, provided with graduated straight rods, rectangles or oval rods having a length of 3 to 40 cm.
【０００６】[0006]
【作用】本発明では、整形を必要とする部位に適合した
整形埋没材の原型として、Ｔｉ−Ｎｉ系、Ｃｕ系の形状
記憶合金、ポリイソプレン系の形状記憶合成樹脂によ
り、柔軟性のある目盛付直線棒、矩形又は長円形棒状体
の型取器具を設けたので、屈曲やひねりを加えて整形部
位に密接した原型として敏速に型取りすることができ、
目盛が目安となって整形埋没材の適切な選択及び加工が
容易となった。この型取器具は使用後、オートクレーブ
等で１２０度程度に加熱殺菌することにより、元の直線
棒、矩形又は長円形の棒状体に戻るので、何度でも原型
として使用することができ、又、一度塑性変形をした微
妙な屈曲部が残存することがなくなった。又、手術中に
長時間をかけて整形埋没材を型取る際、複雑な屈曲を術
部に接近した位置で直接型取りをすることなく、原型が
柔軟性を有するので、指先や器具によって型取りをして
おけば、別の場所で目盛を利用して簡単に原型通りの整
形埋没材を得られるようになった。整形部位の形体と要
求される矯正応力に適するよう棒状体の直径を選んで形
状記憶合金又は合成樹脂で型取りすれば、それと同等の
直径を有する整形埋没材を型通りに塑性変形することは
極めて容易である。In the present invention, as a prototype of the orthopedic investment material suitable for the region requiring shaping, a Ti-Ni-based or Cu-based shape memory alloy or a polyisoprene-based shape memory synthetic resin is used to provide a flexible scale Since it is equipped with a straight rod, a rectangular or oval rod-shaped molding tool, it can be quickly modeled as a prototype close to the shaping site by adding bending and twisting,
Using the scale as a guide, it became easy to properly select and process the orthopedic investment material. After this mold making tool is sterilized by heating in an autoclave at about 120 degrees, it returns to the original straight rod, rectangular or oval rod-shaped body, so it can be used as a prototype any number of times. Subtle bends that were once plastically deformed no longer remain. In addition, when the orthopedic investment material is molded over a long period of time during surgery, the original mold has flexibility without making a complicated curve directly at the position close to the surgical site. If you do, you can easily obtain the original shaped investment material by using the scale at another place. If the diameter of the rod-shaped body is selected to be suitable for the shape of the shaping part and the required corrective stress and it is molded with a shape memory alloy or synthetic resin, it is possible to plastically deform the shaped investment material having the same diameter as the shape. It's extremely easy.
【０００７】[0007]
【実施例】以下、本発明の実施例につき図面に従って説
明する。図１において、１は直線棒として、Ｔｉ約５０
ａｔ％−Ｎｉ約５０ａｔ％の形状記憶合金を用いたもの
で、直径４mm、長さ２０cmで、外周には目盛２を設けて
いる。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a linear bar, and Ti is about 50.
A shape memory alloy of at% -Ni of about 50 at% is used, the diameter is 4 mm, the length is 20 cm, and the scale 2 is provided on the outer circumference.
【０００８】図２は矩形棒状体３を構成したもので、Ｃ
ｕ−Ｚｎ−Ａｌの形状記憶合金を用い、直径６mm、長さ
２１cmで、外周に目盛４を設けている。図３は矩形棒状
体５を構成したもので、６は目盛を示し、形状記憶合成
樹脂としては、ポリイソプレン系として、トランスポリ
イソプレン（ＴＰＩ）を用いた。直径４mm、長さ２５cm
である。FIG. 2 shows a structure of a rectangular rod-shaped body 3,
A shape memory alloy of u-Zn-Al is used, the diameter is 6 mm, the length is 21 cm, and the scale 4 is provided on the outer circumference. FIG. 3 shows a rectangular rod-shaped body 5, and 6 shows a scale. As the shape memory synthetic resin, polyisoprene-based transpolyisoprene (TPI) was used. Diameter 4 mm, length 25 cm
Is.
【０００９】上記各実施例は、整形部位７（図４参照）
に当接して、Ｃｕ系形状記憶合金の場合は非常に柔軟性
があり、且つ塑性力にも富むので、指先やベンディング
用器具によって容易に屈曲したり、術部に合わせてひね
ったりすることにより、整形埋没材の原型が得られる。
この原型に合わせて整形埋没材８を正確に造り、整形部
位７に細いワイヤー９等を用いて装着固定するものであ
る。In each of the above embodiments, the shaping part 7 (see FIG. 4).
In the case of Cu-based shape memory alloy, it is extremely flexible and rich in plastic force, so it can be easily bent by a fingertip or a bending tool or twisted according to the surgical site. A prototype of orthopedic investment material is obtained.
The orthopedic investment material 8 is accurately manufactured in accordance with this prototype, and is attached and fixed to the orthopedic site 7 using a thin wire 9 or the like.
【００１０】[0010]
【発明の効果】本発明では、整形埋没材を造るための原
型を、Ｔｉ−Ｎｉ系、Ｃｕ系の形状記憶合金又はポリイ
ソプレン系の形状記憶合成樹脂で型取るようにしたの
で、術部又は形成部位に適した直径を有し、直線棒又は
矩形棒状体のものを選び、整形部位に合わせて屈曲した
り、ひねったりすることが容易であり、目盛を利用する
ことができるので、敏速且つ正確に型取りをすることが
できる。この原型に沿って実際に整形部位に装着固定す
る整形埋没材は上記原型の直径と長さ及び屈曲部に応じ
て同一のものを構成することにより、適切な矯正応力を
有する整形埋没材を提供することができるようになっ
た。前記原型は使用後、オートクレーブ等により１２０
度程度に加熱殺菌することにより、原状の形体に復帰
し、再度又は何度でも使用可能であり、高価な金属の有
効利用ができ、患者に対しても短時間で適切な整形埋没
材の提供が可能とされ、形状記憶合成樹脂を用いるとき
は軽量であり、手術や矯正に伴う苦痛が大きく緩和され
る等の効果を有する。According to the present invention, the prototype for making the orthopedic investment material is made of the shape memory alloy of Ti-Ni system, Cu system or the shape memory synthetic resin of polyisoprene system. Since it is easy to bend or twist according to the shaping site with a diameter suitable for the forming site and to select a straight rod or rectangular rod shape, it is possible to use a scale, so it is prompt and Can be accurately modeled. Providing an orthopedic investment material having appropriate corrective stress by constructing the same orthopedic investment material that is actually mounted and fixed to the orthopedic site along this prototype according to the diameter and length of the prototype and the bent portion. I was able to do it. After use, the prototype is 120
By heat sterilization to a certain degree, it returns to its original shape and can be used again or again and again, effective use of expensive metals can be provided, and appropriate orthopedic investment material can be provided to patients in a short time. When the shape memory synthetic resin is used, it is lightweight and has an effect that the pain associated with surgery and correction is greatly alleviated.
【００１１】[0011]
【図１】 本発明の一実施例を示す直線棒の型取器具の
斜視図FIG. 1 is a perspective view of a straight rod molding tool showing an embodiment of the present invention.
【図２】 他実施例を示す矩形棒状体の斜視図FIG. 2 is a perspective view of a rectangular rod-shaped body showing another embodiment.
【図３】 さらに他実施例を示す矩形棒状体の斜視図FIG. 3 is a perspective view of a rectangular rod-shaped body showing still another embodiment.
【図４】 整形部位に整形埋没材を装着固定した例を示
す斜視図FIG. 4 is a perspective view showing an example in which an orthopedic investment material is attached and fixed to an orthopedic region.
１ 直線棒 ３、５ 矩形棒状体 ２、４、６
目盛 ７ 整形部位 ８ 整形器具1 Straight bar 3, 5 Rectangular bar 2, 4, 6
Scale 7 Shaping part 8 Shaping tool
Claims (1)
必要とする部位に装着固定され、その部位に適正な矯正
応力を与える整形埋没材を型取る際に用いる原型とし
て、Ｔｉ−Ｎｉ系、Ｃｕ系の形状記憶合金又はポリイソ
プレン系の形状記憶合成樹脂により、柔軟性のある直径
２〜６mm、長さ３〜４０cmの目盛付直線棒、矩形又は長
円形棒状体を設けたことを特徴とする整形埋没材の原型
である形状復帰型の型取器具。1. A Ti-Ni system as a prototype used for molding a orthopedic investment material that is mounted and fixed to the spine, occipital bone, cervical vertebra, lumbar spine, and other regions that require orthopedic treatment and that gives appropriate orthodontic stress to the region. , A Cu-based shape memory alloy or a polyisoprene-based shape memory synthetic resin provided with a flexible linear bar with a diameter of 2 to 6 mm and a length of 3 to 40 cm, and a rectangular or oval rod-shaped body. A shape-recovering mold making tool that is the prototype of orthopedic investment material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3004541A JPH0669483B2 (en) | 1991-01-18 | 1991-01-18 | A shape-recovering molding tool that is the prototype of orthopedic investment material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3004541A JPH0669483B2 (en) | 1991-01-18 | 1991-01-18 | A shape-recovering molding tool that is the prototype of orthopedic investment material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04297270A JPH04297270A (en) | 1992-10-21 |
| JPH0669483B2 true JPH0669483B2 (en) | 1994-09-07 |
Family
ID=11586908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3004541A Expired - Fee Related JPH0669483B2 (en) | 1991-01-18 | 1991-01-18 | A shape-recovering molding tool that is the prototype of orthopedic investment material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0669483B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10695099B2 (en) | 2015-02-13 | 2020-06-30 | Nuvasive, Inc. | Systems and methods for planning, performing, and assessing spinal correction during surgery |
| EP3868294B1 (en) | 2016-03-02 | 2024-04-24 | Nuvasive, Inc. | System for spinal correction surgical planning |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2553993B1 (en) * | 1983-10-28 | 1986-02-07 | Peze William | METHOD AND APPARATUS FOR DYNAMIC CORRECTION OF SPINAL DEFORMATIONS |
| NL9001778A (en) * | 1990-08-07 | 1992-03-02 | Stichting Tech Wetenschapp | SCOLIOSE CORRECTION. |
-
1991
- 1991-01-18 JP JP3004541A patent/JPH0669483B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04297270A (en) | 1992-10-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |