JPS6324384B2 - - Google Patents
Info
- Publication number
- JPS6324384B2 JPS6324384B2 JP58196852A JP19685283A JPS6324384B2 JP S6324384 B2 JPS6324384 B2 JP S6324384B2 JP 58196852 A JP58196852 A JP 58196852A JP 19685283 A JP19685283 A JP 19685283A JP S6324384 B2 JPS6324384 B2 JP S6324384B2
- Authority
- JP
- Japan
- Prior art keywords
- rotary blade
- blade
- cutting
- tip
- auxiliary
- 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
Links
- 230000000399 orthopedic effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 208000010040 Sprains and Strains Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Landscapes
- Knives (AREA)
- Dowels (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、骨折、脱臼、ねんざ、変形等の患部
に安静、矯正あるいは保護を行うためのいわゆる
整形外科固定包帯の切断に用いるカツターに関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cutter used for cutting so-called orthopedic fixation bandages for resting, correcting, or protecting affected areas such as fractures, dislocations, sprains, and deformities.
整形外科固定包帯は、焼きセツコウ、熱可塑性
樹脂、光硬化性樹脂、水硬化性樹脂などの材料を
硬化成分とし、患部に綿包帯、ガーゼ包帯などを
巻いた上に固定包帯を巻いてこれを硬化せしめる
ものであるが、その後患部の治療のため、あるい
は患部が治癒したため固定包帯を部分的または全
面的に切断除去することが必要になつてくる。従
来この目的で用いられているいわゆるギプスカツ
ターには、周縁に切刃を有する円盤状の鋸に、モ
ータの回転運動より変換した微振動回転を伝達
し、この鋸を固定包帯の表側より内部に向かつて
切り込ませ、徐々に鋸を包帯に沿つて移動させる
ものがもつとも広く使用されている。このカツタ
ーは超高速微振動回転方式のため、カツター自体
が激しく振動し、術者が少し長く操作を続けると
手の感覚を失つてしまうことすらあり、また金属
性の高い振動音を発生して対話が不可能になるな
ど治療上好ましくなく、さらに特に、患者には円
盤状の鋸が高速で回転しているように見えるた
め、患者とりわけ幼い患者に与える恐怖感は一方
ならぬものがある。これらの点とは別に、この種
のカツターはその切込み深さを目測で計りながら
操作しなければならないから、術者は患者の体を
傷つけないように過度の神経を使わなければなら
ず、勢い、切断に長時間を要するという欠点があ
る。この点を解決するため、円盤状の鋸とある距
離をおいてガイドを設け、このガイドにより、鋸
が患者の体に接触するのを防止する方法、あるい
は固定包帯の内側に導電体を装入し、鋸が深く切
り込み過ぎて導電体と接触すると警報を発する方
法などが提案されている。しかしながら、このよ
うな方法を採用しても、超高速微振動回転方式の
円盤状鋸刃を使用する限り、それに伴う前述のよ
うな欠点を全く解決することができない。加うる
にこのような鋸刃を用いる関係上、切断に際して
発生する切屑は周囲に広い範囲にわたつて放散す
るため、かなり大形の集じん装置を付加しなけれ
ばならない不利も存在する。
Orthopedic fixed bandages have a hardening component made of materials such as baked clay, thermoplastic resin, photocurable resin, and water-curable resin, and are made by wrapping a cotton bandage, gauze bandage, etc. around the affected area, and then wrapping a fixed bandage over the affected area. After the fixation bandage is cured, it becomes necessary to partially or completely cut and remove the fixed bandage for treatment of the affected area or because the affected area has healed. The so-called cast cutter conventionally used for this purpose transmits micro-vibration rotation converted from the rotational movement of a motor to a disc-shaped saw with a cutting edge on the periphery, and directs this saw into the inside of the fixed bandage from the front side. It is also widely used to make cuts and gradually move the saw along the bandage. Because this cutter uses an ultra-high-speed micro-vibration rotation system, the cutter itself vibrates violently, and if the operator continues to operate it for a little while, the operator may even lose feeling in his or her hands, and it also generates a highly metallic vibration sound. This is undesirable from a therapeutic point of view, as it makes it impossible for patients to communicate with each other, and in particular, because it appears to the patient that the disk-shaped saw is rotating at high speed, it can cause a tremendous sense of fear for patients, especially young patients. Apart from these points, since this type of cutter must be operated while visually measuring the depth of cut, the operator must use excessive nerves to avoid injuring the patient's body, and the operator must use excessive force to avoid injuring the patient. However, the disadvantage is that it takes a long time to cut. To solve this problem, a guide is installed at a certain distance from the disc-shaped saw, and this guide prevents the saw from coming into contact with the patient's body, or a conductor is inserted inside the fixed bandage. However, methods have been proposed that issue an alarm if the saw cuts too deep and comes into contact with a conductor. However, even if such a method is adopted, as long as a disc-shaped saw blade of an ultra-high-speed micro-vibration rotation type is used, the above-mentioned disadvantages associated therewith cannot be solved at all. In addition, the use of such a saw blade has the disadvantage that a fairly large dust collection device must be added, since the chips generated during cutting are scattered over a wide area.
本発明は上に述べたような従来のカツターの持
つ種々の欠点を解決することを目的とするもので
ある。
The present invention aims to solve the various drawbacks of conventional cutters as described above.
この目的は本発明によれば、側面に切削または
研削機能を有する丸棒状の回転刃とこの回転刃と
対向し先端が回転刃の先端より突出した安全用ガ
イドを備え、安全用ガイドは回転刃と対向する側
に補助刃を有し、回転刃と補助刃とは互いに近接
して配置され、回転刃の回転時回転刃と補助刃と
が鋏刃を形成するようにすることにより達成され
る。
This purpose, according to the present invention, includes a round rod-shaped rotary blade having a cutting or grinding function on its side surface, and a safety guide that faces the rotary blade and has a tip protruding from the tip of the rotary blade. This is achieved by having an auxiliary blade on the side facing the auxiliary blade, the rotary blade and the auxiliary blade being arranged close to each other, and the rotary blade and the auxiliary blade forming a scissor blade when the rotary blade rotates. .
回転刃の先端に安全用チツプを備えるようにす
ると、もし万一回転刃の先端が患者に触れること
があつてもなんら危険はなく有利である。この安
全用チツプは例えばプラスチツクで表面の接触抵
抗が小さい丸型に形成することができる。 Providing a safety chip at the tip of the rotary blade is advantageous because even if the tip of the rotary blade should come into contact with the patient, there will be no danger. This safety chip can be made of plastic, for example, and have a round shape with a low surface contact resistance.
また回転刃の先端面にも切刃を設けることによ
り、固定包帯の解放端側方からのみでなく、固定
包帯の上側からも穿孔切削可能となり、固定包帯
の開放端から離れた内方部分の一部を切り取るの
に有利となる。この場合は安全用ガイドはそのま
までは回転刃の先端より突出していて邪魔になる
から、少なくとも最初の穿孔切削等のみは安全用
ガイドを取り外すか、上方へはね上げられるよう
にすることが必要である。 In addition, by providing a cutting edge on the tip surface of the rotary blade, it is possible to cut holes not only from the side of the open end of the fixed bandage, but also from the top of the fixed bandage. This is useful for cutting out a portion. In this case, the safety guide will protrude beyond the tip of the rotary blade and become a hindrance, so it is necessary to remove the safety guide or make it possible to flip it upwards, at least for the first drilling or cutting.
本発明においては回転刃の側面を固定包帯の側
面に当てることにより回転刃の側面が持つ切削ま
たは研削力により固定包帯が切断されてゆくもの
であり、また回転刃が回転すると回転刃と安全用
ガイドの補助刃とが鋏刃を形成するから、固定包
帯の下方に通常巻かれている綿包帯のような回転
刃に絡みつきやすいものも確実に切断してゆくも
のである。
In the present invention, the fixed bandage is cut by the cutting or grinding force of the side surface of the rotary blade by applying the side surface of the rotary blade to the side surface of the fixed bandage. Since the auxiliary blades of the guide form scissor blades, they can reliably cut materials that tend to get tangled with the rotating blades, such as cotton bandages that are usually wrapped below fixed bandages.
次に本発明の実施例を図面について説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
第1図は本発明の実施例を示すもので、1は直
流小形モータとその回転シヤフト部を内蔵する本
体、2は本体1の回転シヤフト部に連絡されたチ
ヤツク部、3はチヤツク部2に着脱自在の回転
刃、4は本体1に取り付けられた安全用ガイドで
ある。 Fig. 1 shows an embodiment of the present invention, in which 1 is a main body containing a small DC motor and its rotating shaft, 2 is a chuck connected to the rotating shaft of the main body 1, and 3 is a chuck connected to the chuck 2. A removable rotary blade 4 is a safety guide attached to the main body 1.
第2図は回転刃の種々の例を示し、第2図aの
回転刃5は上端から下端まで直線状の丸棒の側面
に斜めに走る切刃6を設けたもの、第2図bの回
転刃7は上端から下端に向かい外側に対し凹の曲
面を有する丸棒の側面に斜めに交差する切刃8を
設けたもの、第2図cの回転刃9は上端から下端
に向かい外側に対し凸の断面を有する丸棒の側面
に斜めに交差する切刃10を設けたもの、第2図
dの回転刃11は上端から下端まで直線状の丸棒
の側面に斜めに交差する切刃12を設けるととも
に、先端に安全用チツプ13を設けたもの、第2
図eの回転刃14は側面の切刃15は第2図aに
示すものと同様であるが、先端面にも切刃16を
持つたもの、第2図fの回転刃17は上端から下
端まで直線状の丸棒の側面に多数の砥粒状の切刃
18を植立したものである。回転刃は例えば太さ
2〜10mm、好ましくは3〜6mm、刃の長さ5〜30
mm、好ましくは10〜20mmであり、特殊鋼から成る
超硬質材を使用すると有利である。なお、側面お
よび先端面の切刃については従来用いられている
切削あるいは研削用の種々のものを用いることが
できる。 FIG. 2 shows various examples of rotary blades. The rotary blade 5 in FIG. 2a is a straight round bar with a cutting edge 6 running diagonally on the side surface from the upper end to the lower end, and the rotary blade 5 in FIG. The rotary blade 7 is a round rod having a curved surface concave to the outside from the upper end to the lower end, with a cutting blade 8 diagonally intersecting on the side surface.The rotary blade 9 in FIG. On the other hand, the rotary blade 11 in Fig. 2d is provided with a cutting edge 10 diagonally intersecting the side surface of a round bar having a convex cross section, and the cutting edge diagonally intersecting the side surface of a straight round bar from the upper end to the lower end. 12 and a safety chip 13 at the tip;
The rotary blade 14 in Figure e has a side cutting edge 15 similar to that shown in Figure 2a, but also has a cutting edge 16 on the tip, and the rotary blade 17 in Figure 2f has a cutting edge 15 from the upper end to the lower end. A large number of cutting blades 18 in the form of abrasive grains are installed on the side surface of a straight round bar. The rotary blade has a thickness of, for example, 2 to 10 mm, preferably 3 to 6 mm, and a blade length of 5 to 30 mm.
mm, preferably from 10 to 20 mm, and it is advantageous to use an ultra-hard material made of special steel. Note that various conventionally used cutting or grinding blades can be used as the cutting blades on the side surface and the tip surface.
第3図は安全用ガイドの種々の例を示す。安全
用ガイドはその代表的な構造として第3図aに示
すように、金属またはプラスチツク製で断面L字
型に形成し、回転刃19の長手方向に回転刃19
の先端に若干突出した位置まで回転刃19を一部
囲むように延び回転刃19とほぼ等しいか若干大
きい幅を持つた支持部20と、支持部20に対し
ほぼ直角に回転刃19の先端側に延びる保護部2
1とを有している。支持部20はその側方に補助
刃22を有し、この補助刃22と回転刃19とは
第4図の平面図に示すように回転刃が回転する際
鋏刃を形成するように互いに近接した位置に配置
される。第3図b、第3図c、第3図dは安全用
ガイドに設ける補助刃の異なる例で、第3図b、
第3図cの補助刃23,24は斜め刃、第3図d
の補助刃25はのこぎり刃に形成されている。 FIG. 3 shows various examples of safety guides. As shown in FIG. 3A, the typical structure of the safety guide is that it is made of metal or plastic and has an L-shaped cross section.
A supporting portion 20 extends to partially surround the rotary blade 19 to a slightly protruding position at the tip thereof and has a width that is approximately equal to or slightly larger than that of the rotary blade 19, and a support portion 20 that extends approximately at right angles to the supporting portion 20 to partially surround the rotary blade 19. Protective part 2 extending to
1. The support part 20 has an auxiliary blade 22 on its side, and the auxiliary blade 22 and the rotary blade 19 are close to each other so as to form a scissors blade when the rotary blade rotates, as shown in the plan view of FIG. will be placed in the specified position. Figure 3b, Figure 3c, and Figure 3d are different examples of the auxiliary blade provided on the safety guide.
The auxiliary blades 23 and 24 in Fig. 3c are diagonal blades, Fig. 3d
The auxiliary blade 25 is formed into a saw blade.
第5図は本発明のカツターの使用状態を示すも
ので、人体26の表面に巻かれた固定包帯27の
開放端28に回転刃29の先端を当てる。この際
安全用ガイド30の保護部31が人体26の表面
側にくるから、回転刃29の先端が人体に接触す
るおそれは全くない。この状態で回転刃を回転さ
せながら固定包帯27の表面に沿つて矢印方向に
移動させると、固定包帯27は切断されて行く。
またこの切断時に固定包帯の下側に巻かれた綿包
帯32などは回転刃29と補助刃37により形成
される鋏刃により順次切断され、回転刃29に絡
みつくことはない。 FIG. 5 shows the state in which the cutter of the present invention is used, in which the tip of the rotary blade 29 is applied to the open end 28 of the fixed bandage 27 wrapped around the surface of the human body 26. At this time, since the protective portion 31 of the safety guide 30 is on the surface side of the human body 26, there is no possibility that the tip of the rotary blade 29 will come into contact with the human body. In this state, when the rotary blade is rotated and moved in the direction of the arrow along the surface of the fixed bandage 27, the fixed bandage 27 is cut.
Further, during this cutting, the cotton bandage 32 and the like wrapped under the fixed bandage are sequentially cut by the scissor blade formed by the rotary blade 29 and the auxiliary blade 37, and do not become entangled with the rotary blade 29.
第5図に示すように固定包帯の開放端から切断
し始めるのではなく、第6図に示すように固定包
帯27の開放端28から離れた内方位置33から
切断を始める場合には、最初だけ安全用ガイド3
4を矢印で示すように上にはね上げ、先端面にも
切刃を有する回転刃35を位置33に当て穿孔切
削し、その後安全用ガイドを再び引き下げ切削を
続けることにより、短時間で切断が可能となる。 If, instead of starting at the open end of the securing bandage 27 as shown in FIG. Only safety guide 3
4 is flipped up as shown by the arrow, the rotary blade 35, which also has a cutting edge on the tip surface, is applied to position 33 for drilling and cutting, and then the safety guide is pulled down again to continue cutting, making it possible to cut in a short time. becomes.
本発明によるカツターの回転刃は、棒状で回転
するだけであるから、切断時に生じる切り屑は切
削部を頂点とする逆円錐形の範囲に大部分が集中
するため、集じん装置を接続する場合には、回転
刃の上部にごく小形の集じん装置吸込口を設けれ
ばよく、また集じん装置全体の容量も小さいもの
でよい。 Since the rotary blade of the cutter according to the present invention is rod-shaped and only rotates, most of the chips generated during cutting are concentrated in an inverted conical area with the cutting part as the apex, so when connecting a dust collector, In this case, a very small dust collector suction port may be provided above the rotary blade, and the capacity of the entire dust collector may be small.
本発明によつて得られる効果をまとめれば次の
とおりである。
The effects obtained by the present invention are summarized as follows.
(1) 回転刃は回転式で振動式のものではないか
ら、術者の手に振動を与えず、したがつて施術
が容易かつ正確となる。(1) Since the rotary blade is rotary and not vibrating, it does not apply vibration to the operator's hands, making the treatment easier and more accurate.
(2) 回転刃はごく小形に作ることができ、駆動部
もごく小形のモータでよいから、カツター全体
はペンシルタイプのように小形軽量となる。(2) The rotary blade can be made very small, and the drive unit requires only a small motor, so the entire cutter can be as small and lightweight as a pencil type.
(3) カツターが小形で騒音も低いから、患者に全
く恐怖感を与えず、術中の対話も可能となる。(3) The cutter is small and produces low noise, so it does not cause any fear to the patient and allows for dialogue during the surgery.
(4) 回転刃は種々の型に構成することができるか
ら、条件に応じてもつとも適した回転刃を用い
ることができる。(4) Since the rotary blade can be constructed in various shapes, it is possible to use a rotary blade that is suitable for each condition.
(5) 回転刃により、任意の曲線状に切断を行うこ
とができ、かつ切口をきれいに仕上げることが
できる。(5) The rotary blade allows cutting in any curved shape and provides a clean finish.
(6) 安全用ガイドによりきわめて安全に、かつ切
込み深さに過度の神経を使うことなく施術する
ことができ、施術に熟練を必要としない。(6) The safety guide allows the operation to be performed extremely safely and without worrying too much about the depth of the cut, and no skill is required for the operation.
(7) 集じん装置を用いる場合、小容量にものです
ませることができる。(7) When using a dust collector, it can be reduced to a small capacity.
(8) 回転刃の回転中は回転刃を補助刃とが鋏刃を
形成し、固定包帯の下側の綿包帯などを切断し
て行くから、絡み付きにより回転刃が停止して
しまうようなことがなく、切断作業を容易に行
うことができる。(8) While the rotary blade is rotating, the rotary blade and the auxiliary blade form scissor blades and cut the cotton bandage, etc. on the underside of the fixed bandage, so the rotary blade may stop due to entanglement. This makes cutting work easier.
第1図は本発明の一実施例の側面図、第2図a
〜fは本発明で用いられる回転刃の異なる例のそ
れぞれ側面図、第3図a〜dは本発明に使用され
る安全用ガイドの異なる例の側面図、第4図は本
発明の回転刃と安全用ガイドとの関係を示す平面
図、第5図、第6図は本発明のカツターの使用状
態の異なる例の側断面図である。
1……カツター本体、2……チヤツク部、3…
…回転刃、4……安全用ガイド、22,23,2
4,25,37……補助刃。
Fig. 1 is a side view of one embodiment of the present invention, Fig. 2a
- f are side views of different examples of the rotary blade used in the present invention, Figures 3 a to d are side views of different examples of the safety guide used in the present invention, and Figure 4 is a side view of the rotary blade of the present invention. FIGS. 5 and 6 are side sectional views of different examples of how the cutter of the present invention is used. 1... cutter body, 2... chuck part, 3...
...Rotary blade, 4...Safety guide, 22, 23, 2
4, 25, 37... Auxiliary blade.
Claims (1)
回転刃と、この回転刃と対向し先端が回転刃の先
端より突出した安全用ガイドとを備え、安全用ガ
イドは回転刃と対向する側に補助刃を有し、回転
刃と補助刃とは互いに近接して配置され、回転刃
の回転時回転刃と補助刃とが鋏刃を形成するよう
にしたことを特徴とする整形外科固定包帯用カツ
ター。 2 回転刃の先端に安全用チツプを備えたことを
特徴とする特許請求の範囲第1項記載のカツタ
ー。 3 回転刃の先端面に切刃を設けたことを特徴と
する特許請求の範囲第1項または第2項記載のカ
ツター。[Scope of Claims] 1. A rotary blade in the shape of a round bar having a cutting or grinding function on its side surface, and a safety guide that faces the rotary blade and has a tip protruding from the tip of the rotary blade, and the safety guide is connected to the rotary blade. and an auxiliary blade on the side facing the auxiliary blade, the rotary blade and the auxiliary blade are arranged close to each other, and the rotary blade and the auxiliary blade form a scissors blade when the rotary blade rotates. Cutter for orthopedic fixed bandage. 2. The cutter according to claim 1, characterized in that a safety tip is provided at the tip of the rotary blade. 3. The cutter according to claim 1 or 2, characterized in that a cutting blade is provided on the distal end surface of the rotary blade.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19685283A JPS6088552A (en) | 1983-10-20 | 1983-10-20 | Cutter for orthodontic surgical fixing bandage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19685283A JPS6088552A (en) | 1983-10-20 | 1983-10-20 | Cutter for orthodontic surgical fixing bandage |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6088552A JPS6088552A (en) | 1985-05-18 |
JPS6324384B2 true JPS6324384B2 (en) | 1988-05-20 |
Family
ID=16364726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19685283A Granted JPS6088552A (en) | 1983-10-20 | 1983-10-20 | Cutter for orthodontic surgical fixing bandage |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6088552A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992018081A1 (en) * | 1991-04-17 | 1992-10-29 | Suzuki Motor Corporation | Ultrasonic cutter |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0810306Y2 (en) * | 1990-05-21 | 1996-03-29 | スズキ株式会社 | Orthopedic ultrasonic cutter |
KR100968497B1 (en) * | 2008-05-13 | 2010-07-07 | (주) 고도기연 | Cutter for cast tape using ultrasonics wave |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4934086A (en) * | 1972-07-30 | 1974-03-29 |
-
1983
- 1983-10-20 JP JP19685283A patent/JPS6088552A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4934086A (en) * | 1972-07-30 | 1974-03-29 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992018081A1 (en) * | 1991-04-17 | 1992-10-29 | Suzuki Motor Corporation | Ultrasonic cutter |
GB2260908A (en) * | 1991-04-17 | 1993-05-05 | Suzuki Motor Co | Ultrasonic cutter |
GB2260908B (en) * | 1991-04-17 | 1995-07-12 | Suzuki Motor Co | Ultrasonic cutter |
Also Published As
Publication number | Publication date |
---|---|
JPS6088552A (en) | 1985-05-18 |
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