JPH04297270A - Patterning apparatus for shape return mold, master form of orthopedic implant material, and orthopedic implant material of shape return mold - Google Patents
Patterning apparatus for shape return mold, master form of orthopedic implant material, and orthopedic implant material of shape return moldInfo
- Publication number
- JPH04297270A JPH04297270A JP3004541A JP454191A JPH04297270A JP H04297270 A JPH04297270 A JP H04297270A JP 3004541 A JP3004541 A JP 3004541A JP 454191 A JP454191 A JP 454191A JP H04297270 A JPH04297270 A JP H04297270A
- Authority
- JP
- Japan
- Prior art keywords
- orthopedic
- shape
- implant material
- orthopedic implant
- diameter
- 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
- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 42
- 239000000463 material Substances 0.000 title claims abstract description 37
- 239000007943 implant Substances 0.000 title abstract 5
- 238000000059 patterning Methods 0.000 title abstract 5
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 18
- 229920001195 polyisoprene Polymers 0.000 claims abstract description 9
- 229910004337 Ti-Ni Inorganic materials 0.000 claims abstract description 7
- 229910011209 Ti—Ni Inorganic materials 0.000 claims abstract description 7
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000007493 shaping process Methods 0.000 claims abstract 2
- 238000000465 moulding Methods 0.000 claims description 9
- 210000000103 occipital bone Anatomy 0.000 claims description 6
- 238000001356 surgical procedure Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 12
- 210000000988 bone and bone Anatomy 0.000 abstract description 4
- 229910052759 nickel Inorganic materials 0.000 abstract description 3
- 229910052719 titanium Inorganic materials 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 239000010936 titanium Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000002316 cosmetic surgery Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910007570 Zn-Al Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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
Abstract
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及び形状
復帰型の整形埋没材に関する。[Industrial Application Field] The present invention is directed to spinal vertebrae that require plastic surgery;
The present invention relates to a shape-returning type molding device and a shape-returning type orthopedic investment material, which are the prototypes of the orthopedic investment material that is attached and fixed to the occipital bone, cervical vertebrae, lumbar vertebrae, etc. and applies corrective 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。[Prior Art] Conventionally, examples of orthopedic investment materials that are attached and fixed to bones that require reshaping in the spine, occipital bone, cervical vertebrae, lumbar vertebrae, and other parts include stainless steel rods with bent ends; A rectangular or oval rod-shaped body having a width of about 2 cm and a length of 3 to 40 cm is known. For example, as shown in Figure 4, these orthopedic investment materials are made by subtly bending or twisting each part of the rod-shaped body using multiple bending instruments or tape measures to fit the orthopedic area of the occiput or cervical vertebrae. It is attached and fixed onto the bone using thin stainless steel wires, bolts and nuts, and the elastic force of these rods is used to apply correction 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。[Problems to be Solved by the Invention] However, these orthopedic investment materials must be fixed to the bone and remain in the body for a long time, and they are also required to be made of a material that can withstand sterilization temperatures. , relatively expensive metals such as silver, nickel, and titanium are used, and once they have been bent or deformed to fit a specific surgical site, even if they are used again for another site, there will be slight deformation. has been considered extremely difficult to restore. In addition, it takes a long time to perform deformation and bending to fit the shape of the surgical site during the surgery, and bending with bending instruments cannot be done properly in a short period of time, causing physical and physical damage to the patient. There were also problems such as causing mental pain.
【０００４】本発明の第１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。又、第２の目的は整
形部位に適合して矯正応力を十分に発揮できる材質で構
成され、再利用も可能とした形状復帰型の整形埋没材を
提供しようとするものである。[0004] The first object of the present invention is to solve the above-mentioned problems and to provide accurate molding in a short time as a prototype for making a mold of an orthopedic investment material that is suitable for a part that requires reshaping. This makes it possible to easily create orthopedic investment materials that are actually attached to the orthopedic site.
This prototype is intended to be provided as a shape-returnable molding tool that can be used any number of times. The second objective is to provide a shape-recoverable orthopedic investment material that is made of a material that is compatible with the orthopedic site and can sufficiently exert orthodontic stress, and that can be reused.
【０００５】[0005]
【課題を解決するための手段】本発明の第一の目的を達
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、ポリイソプレン系の形状記憶合
金により、柔軟性のある直径２〜６ｍｍ、長さ３〜４０
ｃｍ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、第２
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適合するよう変形、弯曲等の
塑性変化を加えて、その部位に矯正応力を与える整形埋
没材として、Ｔｉ−Ｎｉ系、Ｃｕ系、ポリイソプレン系
の形状記憶合金により、直径２〜６ｍｍ、長さ３〜４０
ｃｍの直線棒、矩形又は長円形棒状体を用いた形状復帰
型の整形埋没材とした。[Means for Solving the Problems] In order to achieve the first object of the present invention, the device is fixed to the spine, occipital bone, cervical vertebrae, lumbar vertebrae, and other areas that require plastic surgery, and applies appropriate correction stress to the area. As a prototype to be used when molding the orthopedic investment material,
Made of shape memory alloys such as Ti-Ni, Cu, and polyisoprene, it has a flexible diameter of 2 to 6 mm and a length of 3 to 40 mm.
It is a shape-returning molding device that is the original model of the orthopedic investment material, which is equipped with a rectangular or oval rod-like body with a straight rod with cm scale, and a second
In order to achieve this purpose, Ti is used as an orthopedic investment material that applies plastic changes such as deformation and curvature to fit the spine, occipital bone, cervical vertebrae, lumbar vertebrae, and other areas that require orthopedic treatment, and applies corrective stress to the area. - Made of Ni-based, Cu-based, and polyisoprene-based shape memory alloys, the diameter is 2 to 6 mm and the length is 3 to 40 mm.
A shape-recoverable orthopedic investment material using a straight rod, rectangular or oval rod with a diameter of 1 cm was used.
【０００６】[0006]
【作用】第１の発明では、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、
ポリイソプレン系の形状記憶合金により、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。[Operation] In the first invention, Ti-Ni type, Cu type,
Made of polyisoprene-based shape memory alloy, the molding tool is equipped with a flexible linear rod with scale, rectangular or oval rod shape, so it can be quickly molded as a prototype close to the surgical site by bending or twisting. The scale serves as a guide, making it easy to appropriately select and process the shaped investment material. After use, this mold-making tool can be heated and sterilized at about 120 degrees in an autoclave or the like to return to its original straight, rectangular, or oval rod shape, so it can be used as a prototype any number of times. The delicate bends that were once plastically deformed no longer remain. In addition, when taking a mold of the orthopedic investment material over a long period of time during surgery, the mold is flexible and can be easily molded with fingertips or instruments without having to take a mold of the complex bending directly close to the surgical site. Once you have removed it, you can use the scale at another location to easily obtain a shaped investment material that matches the original shape. If the diameter of the rod-shaped body is selected to suit the shape of the orthopedic area and the required orthodontic stress, and the shape-memory alloy is molded, it is extremely easy to plastically deform an orthopedic investment material with the same diameter as the rod-shaped body according to the mold. be.
【０００７】第２の発明では、原型としての型取器具を
用いることなく、整形埋没材自体を形状記憶合金で造る
ようにしたので、整形部位に適合した矯正応力を有する
直径を選び、適宜の長さの棒状体を用いることができ、
Ｃｕ系の形状記憶合金を用いれば、より柔軟性があって
変形屈曲等の塑性変形が容易であり、又、ポリイソプレ
ン系の合成樹脂を用いれば、より軽量で整形部位の組織
にも適合し易く患者の負担軽減ともなる。[0007] In the second invention, the orthopedic investment material itself is made of a shape memory alloy without using a molding tool as a prototype, so a diameter having a corrective stress suitable for the orthopedic area is selected and an appropriate A length of rod can be used,
If a Cu-based shape memory alloy is used, it is more flexible and can easily be plastically deformed such as deformation/bending, and if a polyisoprene-based synthetic resin is used, it is lighter and adapts to the structure of the orthopedic site. It also reduces the burden on the patient.
【０００８】[0008]
【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。DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings. In Fig. 1, 1 is a straight bar with about 50 Ti
It uses a shape memory alloy of about 50 at% at%-Ni, has a diameter of 4 mm, a length of 20 cm, and has a scale 2 on the outer periphery.
【０００９】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
合金としては、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２５
ｃｍである。FIG. 2 shows a configuration of a rectangular rod-shaped body 3, with C
It is made of u-Zn-Al shape memory alloy, has a diameter of 6 mm, a length of 21 cm, and has a scale 4 on its outer periphery. FIG. 3 shows a rectangular rod-shaped body 5, in which 6 indicates a scale, and transpolyisoprene (TPI) is used as a polyisoprene-based shape memory alloy. Diameter 4mm, length 25
cm.
【００１０】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。[0010] In each of the above embodiments, the orthopedic region 7 (see FIG. 4)
In the case of a Cu-based shape memory alloy, it is extremely flexible and has high plasticity, so it can be easily bent with a fingertip or a bending instrument, or twisted to fit the surgical site. , a prototype of the orthopedic investment material can be obtained. A surgical investment material 8 is precisely made according to this prototype, and is attached and fixed to the surgical site 7 using a thin wire 9 or the like.
【００１１】[0011]
【発明の効果】本発明の第１発明では、整形埋没材を造
るための原型を、Ｔｉ−Ｎｉ系、Ｃｕ系又はポリイソプ
レン系の形状記憶合金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、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。Effects of the Invention In the first aspect of the present invention, the prototype for making the orthopedic investment material is made of a shape memory alloy such as Ti-Ni, Cu, or polyisoprene. Choose a straight rod or a rectangular rod with a diameter appropriate for the area to be treated, and it can be easily bent or twisted to suit the area to be treated, and a scale can be used, making it quick and accurate. A mold can be made. The orthopedic investment material that is actually attached and fixed to the orthopedic site along this prototype is configured to be the same according to the diameter, length, and bent portion of the above-mentioned prototype, thereby providing a orthopedic investment material that has appropriate corrective stress. Now you can. After use, the prototype can be heated and sterilized at about 120 degrees using an autoclave or the like to restore its original shape and can be used again or any number of times, making it possible to effectively utilize expensive metals.
It is also possible to provide an appropriate orthopedic investment material to the patient in a short time, and has the effect of greatly alleviating the pain associated with surgery and correction.
【００１２】第２発明では、整形部位における矯正応力
に適した曲げ応力やひねり応力をもった整形埋没材を直
径の選択及び形状記憶合金の種類の選択によって適切に
行うことができ、使用後オートクレーブ等の加熱によっ
て原型に復帰することができ、高価な金属の再利用化や
従来の金属では得られなかった合成樹脂等の軽量化もで
き、患者の負担軽減に大きく貢献できるようになった。[0012] In the second invention, it is possible to properly shape the investment material with bending stress and twisting stress suitable for the straightening stress at the orthopedic site by selecting the diameter and the type of shape memory alloy, and it is possible to properly shape the investment material by selecting the diameter and the type of shape memory alloy. The device can be returned to its original shape by heating, making it possible to reuse expensive metals and make lightweight synthetic resins that could not be obtained with conventional metals, greatly contributing to reducing the burden on patients.
【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] A perspective view of a straight rod molding device 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[Figure 2] 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[Figure 3
] 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[Figure 4
] A perspective view showing an example of an orthopedic investment material being attached and fixed to the orthopedic site.
１ 直線棒 ３、５ 矩形棒状体
２、４、６ 目盛1 Straight rod 3, 5 Rectangular rod
2, 4, 6 scale
Claims (2)
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、ポリイソプレン系の形状記
憶合金により、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。Claim 1: A Ti-Ni based mold is used as a mold for molding an orthopedic investment material that is attached and fixed to the spine, occipital bone, cervical vertebrae, lumbar vertebrae, and other areas that require orthopedic surgery, and provides appropriate correction stress to the area. , Cu-based, polyisoprene-based shape memory alloy, flexible diameter 2 ~ 6 mm, length 3 ~
A shape-returning mold-making device that is a prototype of a shaping investment material, characterized by having a 40 cm graduated linear bar, rectangular or oval bar-shaped body.
を必要とする部位に適合するよう変形、弯曲等の塑性変
化を加えて、その部位に矯正応力を与える整形埋没材と
して、Ｔｉ−Ｎｉ系、Ｃｕ系、ポリイソプレン系の形状
記憶合金により、直径２〜６ｍｍ、長さ３〜４０ｃｍの
直線棒、矩形又は長円形棒状体を用いたことを特徴とす
る形状復帰型の整形埋没材。2. A Ti-Ni orthopedic investment material that applies plastic changes such as deformation and curvature to adapt to the spine, occipital bone, cervical vertebrae, lumbar vertebrae, and other regions that require orthopedic treatment, and applies corrective stress to the region. A shape-returnable orthopedic investment material characterized by using a straight, rectangular or oval rod-like body with a diameter of 2 to 6 mm and a length of 3 to 40 cm, which is made of a shape memory alloy such as a Cu type, a Cu type, or a polyisoprene type.
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 true JPH04297270A (en) | 1992-10-21 |
| JPH0669483B2 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11576727B2 (en) | 2016-03-02 | 2023-02-14 | Nuvasive, Inc. | Systems and methods for spinal correction surgical planning |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60111651A (en) * | 1983-10-28 | 1985-06-18 | ウイリアム・プーズ | Spinel distortion correcting apparatus |
| JPH04244149A (en) * | 1990-08-07 | 1992-09-01 | Stichting Voor De Technische Wetenschappen | Method for correction of spinal scoliosis and set, rod and fixing element therefor |
-
1991
- 1991-01-18 JP JP3004541A patent/JPH0669483B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60111651A (en) * | 1983-10-28 | 1985-06-18 | ウイリアム・プーズ | Spinel distortion correcting apparatus |
| JPH04244149A (en) * | 1990-08-07 | 1992-09-01 | Stichting Voor De Technische Wetenschappen | Method for correction of spinal scoliosis and set, rod and fixing element therefor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11576727B2 (en) | 2016-03-02 | 2023-02-14 | Nuvasive, Inc. | Systems and methods for spinal correction surgical planning |
| US11903655B2 (en) | 2016-03-02 | 2024-02-20 | Nuvasive Inc. | Systems and methods for spinal correction surgical planning |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0669483B2 (en) | 1994-09-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |