JPS6048249A - Grinding method for medical ultrafine materials - Google Patents
Grinding method for medical ultrafine materialsInfo
- Publication number
- JPS6048249A JPS6048249A JP15415583A JP15415583A JPS6048249A JP S6048249 A JPS6048249 A JP S6048249A JP 15415583 A JP15415583 A JP 15415583A JP 15415583 A JP15415583 A JP 15415583A JP S6048249 A JPS6048249 A JP S6048249A
- Authority
- JP
- Japan
- Prior art keywords
- ultra
- chuck
- fine
- fine material
- tip
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/16—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding sharp-pointed workpieces, e.g. needles, pens, fish hooks, tweezers or record player styli
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
- B21G1/00—Making needles used for performing operations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は刃部多角形断面を持った歯科用リーマ、ファイ
ル手術用縫合針等の針状医療具に供する極細材の研Ｆｉ
１１方法に係り、更に詳しくは極細材の元部にこの極細
材の先部に形成される断面角形と相似形を持った角断面
を予めプレス成形し、平行な把持面を有する上下２枚よ
りなるチャックに前述の如くプレス成形された多数の極
細材の元部を一列状に並列して把持せしめ、かつ該チャ
ックの２枚の上下把持面を極細材の軸心に直角に互いに
ズラスことによって前記極細材の元部の多角形面を一斉
に揃えてころがしながら極細材の先部を砥石等によって
所定の角形断面に研削してエツジ及び刃先を形成するこ
とを特徴とした医療用極細材の研削方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention is a method for polishing ultra-fine materials used for needle-like medical instruments such as dental reamers and file surgical suture needles having a polygonal cross section.
11 method, more specifically, a corner cross section having a similar shape to the cross section formed at the tip of the ultra-fine material is press-formed in advance on the base of the ultra-fine material, and two upper and lower sheets having parallel gripping surfaces are formed. By gripping the base parts of a large number of press-formed ultra-fine materials in a row in a chuck, and by shifting the two upper and lower gripping surfaces of the chuck from each other at right angles to the axis of the ultra-fine materials. The ultra-fine material for medical use is characterized in that the tip of the ultra-fine material is ground to a predetermined square cross section with a grindstone or the like while the polygonal surfaces of the base of the ultra-fine material are aligned all at once to form edges and cutting edges. This relates to a grinding method.
（２）
従来この種の針状医療具を研削する場合には囚医療用具
の素材となる極細材を手で持って回転砥石等によってそ
の先部を角錐に研削する方法、ｔＢ）三角の外形を持っ
たチャックに極細材の元部を挾持させ、ならい捧等を使
用しながら極細材の先部を砥石等で研削する方法、（０
割り出し盤に取付けたチャックに素材を１個挾持させて
、角度を割り出しながら先部を砥石の側面等で研削する
方法、■本件特許出願人の出願に係る特願昭５７−１７
６５２号に示すＤｏ＜、多数の極細材をチャックで並列
して把持し、一方向のみから゛研削することによって２
個所にエツジを形成する方法、（Ｄ或は本件出願人の出
願に係る特公昭５７−４６５８６号及び特開昭５７−１
４４６５１号の如く丸棒状の極細材を上下２枚よりなる
チャックによって並列把持し、（３）
上下板を夫々相互にずらすことによって極＊＋ｎ材を一
定の角度で回動させ、その都度研削することによって極
細材の先端部を断面多角状に研削する方法等が開発され
実用化されていたが、（５）、 （ｌＪｌ 、 ｔｅｌ
の場合はほとんど手動方式であるので、能率が悪く大量
生産が出来ず、作業者が熟練を要するにもか瓦わらず均
一なものが出来ず、例えば機械化しても１個づつの加工
の為に加工時間が長くか〜って安価に大量生産すること
が出来ず、又旧の場合には一面のみしか研削しない為に
６個以上のエツギを持った極細材を形成することが出来
ない欠点があり、更に田）の場合にはチャックの上板と
下板とのズラシ量によって回転角度が左右される為にズ
ラシ量を常に一定にする必要があり、均一性を出すこと
が困難であり、更にズラシ精度を高くしく４）
ても極細材とチャックとの接触関係によって、全くバラ
バラな回転角度を提することもあるので、チャック面の
材質状態等の吟味等に熟練を要し、しかも極細材の元部
の外径が均一でない場合にはチャックをズラしても少し
しか回転しないものが発生し、従ってチャックによって
把持された多数の極細材の先部を全部均一に研削するこ
とが出来ず、不良品が多数発生する等の欠点があった。(2) Conventionally, when grinding this type of needle-shaped medical device, the method is to hold the ultra-fine material that is the raw material for the prison medical device in your hand and grind the tip into a pyramid using a rotating grindstone, etc. tB) Triangular external shape A method in which the tip of the ultra-fine material is gripped by a chuck with a grinding wheel, and the tip of the ultra-fine material is ground using a whetstone, etc. while using a grinder, etc.
A method of holding a piece of material in a chuck attached to an indexing machine and grinding the tip with the side surface of a grindstone while indexing the angle.
Do< as shown in No. 652, by gripping a large number of ultra-fine materials in parallel with a chuck and grinding them from only one direction.
A method of forming an edge at a location (D or Japanese Patent Publication No. 57-46586 and Japanese Patent Application Laid-open No. 57-1 filed by the present applicant)
44651, a round bar-shaped ultra-fine material is held in parallel by a chuck consisting of two upper and lower plates, and (3) the pole*+n material is rotated at a fixed angle by shifting the upper and lower plates relative to each other, and ground each time. As a result, methods such as grinding the tip of ultra-fine material into a polygonal cross-section have been developed and put into practical use.
In most cases, the method is manual, so it is inefficient and cannot be mass-produced, and even though the workers need skill, it is difficult to produce uniform pieces.For example, even with mechanization, it is difficult to process one piece at a time. The long machining time makes it impossible to mass-produce at a low cost, and the old method only grinds one side, making it impossible to form ultra-fine materials with six or more edges. Furthermore, in the case of (1), the rotation angle is affected by the amount of displacement between the upper and lower plates of the chuck, so the amount of displacement must always be constant, and it is difficult to achieve uniformity. Furthermore, even if the sliding accuracy is increased 4), completely different rotation angles may be presented depending on the contact relationship between the ultra-fine material and the chuck, so it requires skill to examine the material condition of the chuck surface, etc. If the outer diameter of the base of the material is not uniform, some parts may rotate only a little even if the chuck is shifted. Therefore, it is not possible to uniformly grind all the tips of the large number of extremely fine materials gripped by the chuck. First, there were drawbacks such as a large number of defective products.
本発明に係る針状医療具の研削方法は従来のこれ等の欠
点に鑑み開発された全く新規な技術であって、特に歯科
用リーマ、ファイル、手術用縫合針等の医療用具の素材
となる極細材の元部にこの極細材の先部に形成される角
断面と相似形を持った角断面を予めプレス成形し、これ
等の多数の極細材の元部を上下２枚よりなるチャックで
並列把持し、（５）
チャックを極細材の軸心に沿ってプレスことによって多
数の極細材を一斉に揃えてころがしながら極細材の先部
を砥石等によって所定の角形断面に研削してエツジ及び
刃先を形成することを特徴とした全（新規な技術に関す
るものである。The method of grinding a needle-like medical device according to the present invention is a completely new technology developed in view of these conventional drawbacks, and is particularly useful as a material for medical devices such as dental reamers, files, and surgical suture needles. A corner section similar to the corner section formed at the tip of the ultra-fine material is press-formed in advance on the base of the ultra-fine material, and the base of many of these ultra-fine materials are held together using a chuck consisting of two upper and lower pieces. (5) By pressing the chuck along the axis of the ultra-fine materials, a large number of ultra-fine materials are aligned and rolled, and the tips of the ultra-fine materials are ground to a predetermined rectangular cross-section with a grindstone or the like to form edges and edges. This relates to a new technology that is characterized by the formation of a cutting edge.
図により本発明に係る方法の一実施例を具体的に説明す
ると、第１図＝ 、 ｍ＋ 、 ｔｏ 、■）に於いて
、１゜２．５．４は夫々歯科用或は手術用の針状医療具
の素材として使用される種々の極細材であって、これ等
の元部ａには夫々これ等の先部に形成される断面角形の
形状と全く同一の方向性とかつ相似形とを持った角断面
が予めプレス加工により成形されている。又、これ等の
元部ａは切取られて製品となる場合と、そのまに製品の
一部となる場合とがある。例えば素材１の場合は先部す
をねじつ（６）
た後元部ａの外周にプラスチックの柄（点線表示）をイ
ンサート成形等によって形成して製品にすることによっ
て柄内で針の回転力増強に利用している等である。To specifically explain one embodiment of the method according to the present invention with reference to figures, in Fig. 1 = , m+, to, ■), 1°2, 5.4 are dental or surgical needles, respectively. These are various ultra-fine materials used as materials for shaped medical devices, and each of these base parts a has exactly the same directionality and a similar shape to the square cross-sectional shape formed at the tip of each of these. A corner cross section with a shape is preformed by press working. In addition, these base portions a may be cut out and become a product, or may become part of the product at that time. For example, in the case of material 1, a plastic handle (indicated by a dotted line) is formed on the outer periphery of the rear part a by insert molding etc. after screwing the tip (6). It is used for reinforcement, etc.
次に第２図及び第６図囚、［Ｆ］）、（０に於いて５は
上板６及び下板７よりなる巾広なチャックであって、こ
のチャック５の上板６及び下板７には例えば上述の極細
棒４の元部ａが多数並列されて把持されている。Next, in Figures 2 and 6, [F]), (In 0, 5 is a wide chuck consisting of an upper plate 6 and a lower plate 7, and this chuck 5 has an upper plate 6 and a lower plate. For example, a large number of base portions a of the above-mentioned ultra-thin rods 4 are held in parallel at 7.
従ってチャック５によって把持された極細棒４の先部を
研削する場合には回転する砥石８に当接して所定の寸法
迄研削し、次に第６図囚乃至（０に示す如くチャック５
の上板６及び下板７を矢印方向にズラシてこれ等の上下
板６，７で把持した極細棒４の元部ａをころがして回転
し、特に２重線で（７）
表示した面を順に研削し、極細棒４の元部ａ及び先部す
の有する辺数だけこれを繰返すことによって先部すを角
錐状等に研削し、極めて精度の良いかつ均一なエツジを
形成することが出来る。Therefore, when grinding the tip of the ultra-thin rod 4 held by the chuck 5, it is brought into contact with the rotating grindstone 8 and ground to a predetermined dimension, and then the chuck 5 is
Slide the upper plate 6 and lower plate 7 in the direction of the arrow, roll and rotate the base part a of the ultra-thin rod 4 held by these upper and lower plates 6 and 7, especially the surface indicated by the double line (7). By sequentially grinding and repeating this process for the number of sides that the base part a and the tip part of the ultra-thin rod 4 have, the tip part can be ground into a pyramidal shape or the like, and an extremely precise and uniform edge can be formed. .
上記実施例の説明及び第１図に於いては、予めプレス加
工で形成しておく角断面形は同一方向性の相似形として
記述したが、同一方向でない反対方向の場合も反対側を
削れば良いので、相似形であれば良（、更に相似形につ
いても、夫々の辺と辺とのなす角が同一であれば辺長の
相異即ちプレス成形断面のエツジの出具合は問題でない
。本発明では辺と辺のなす角が同一であるものを相似形
として説明したので、この様な変更が可能であることを
追記するものである。In the explanation of the above embodiment and FIG. 1, the square cross-sectional shapes formed in advance by press working are described as similar shapes with the same directionality, but even if they are not in the same direction but in the opposite direction, it is possible to cut the opposite side. (In addition, for similar shapes, as long as the angles formed by each side are the same, the difference in side length, that is, the protrusion of the edge of the press-formed cross section, is not a problem.) In the invention, the shapes in which the angles formed by the sides are the same are described as similar shapes, so it should be added that such changes are possible.
本発明に係る方法は上述の如く、針状医療具の素（８）
材となる極細材の元部にこの先部に形成する角断面と相
似形を持った角断面をプレスによって予め成形し、この
様に成形した極細材の元部を上下板よりなるチャックで
把持し、チャックの上下板をプレスことによって極細材
をころがして回転するようにしたので、多数の極細材を
チャックで並列して把持しても全部の極細材を均一にか
つ確実に回転することが出来、従って熟練を要せずに精
度の良い研削を行うことが出来、又従来の如（目視によ
る研削の補正が不要となるので、全ての研削作業を自動
化することが出来、従って精度の良いものを安価に大量
生産することが出来、更に従来の如くチャックの把持面
が硬いとこの把持面に接触しない極細材が出てころがら
ずに加工中に抜は落ちたりし、又把持面が軟いと極細材
との接触面（９）
が多くなってころがし角度にバラツキが出たり、ころが
した後にころがし角度が変化したりして精度の良い研削
が不可能となるのに対し、本発明は上述の如き方法によ
って実施されるので、把持面を丸棒の時より多少状かめ
のものを選択する等の配慮により従来の前述の欠点を根
本的に解決することが出来、特に本件出願人の出願に係
る特公昭５７−４５５８６号及び特開昭５７−１４４６
５１号公報に示す技術と本発明とを合せ用いることによ
って特段の効果を得ることが出来る等の特徴を有するも
のである。As described above, the method according to the present invention includes forming in advance by pressing a corner cross-section similar to the corner cross-section to be formed at the tip of the ultra-fine material used as the raw material (8) of the needle-like medical device. The base of the ultra-fine material formed in this way is held by a chuck consisting of upper and lower plates, and by pressing the upper and lower plates of the chuck, the ultra-fine material is rolled and rotated. Even when gripped, all of the ultra-fine materials can be rotated uniformly and reliably, making it possible to perform highly accurate grinding without requiring any skill, and eliminating the need for visual correction of grinding. Therefore, all grinding work can be automated, and high-precision products can be mass-produced at low cost.Furthermore, if the gripping surface of the chuck is hard as in the past, it is possible to produce ultra-fine materials that do not come into contact with the gripping surface. If the gripping surface is soft, there will be a lot of contact surface (9) with the ultra-fine material, resulting in variations in the rolling angle, or the rolling angle may change after rolling. However, since the present invention is carried out by the method described above, the gripping surface is selected to have a slightly more shape than the case of a round bar, so that it is not possible to grind with high precision. It is possible to fundamentally solve the shortcomings of JP-A-57-45586 and JP-A-57-1446, which were filed by the present applicant.
The present invention is characterized in that a special effect can be obtained by combining the technique disclosed in Japanese Patent No. 51 with the present invention.
第１図乃至第６図は本願の方法の一例を示す簡略説明図
である。
１．２．６．４は夫々極細棒、 ５はチャック、（１０
）
６は」二板、７は下板、 ８は砥石、 ａは元部、ｂは
先部である。
特許出願人 株式会社 松谷製作所
第２図
４ ＝・’ン″ ・−′／ ：ｌ −
−５、＝′−１−１″゛二す１、・−１，５−一、、：
−Ｔ、、、。
、：１．−１″、′、゛ぜ′、−
゛８′″−二４．パ１°゛゛°・・−゛”１−・−の・
４ −”’ゝ゛、・−９°１゛
第３図
（Ａ）６
（Ｂ）６
（Ｃ）６1 to 6 are simplified explanatory diagrams showing an example of the method of the present application. 1.2.6.4 are extra fine rods, 5 is a chuck, (10
) 6 is the second plate, 7 is the lower plate, 8 is the whetstone, a is the base, and b is the tip. Patent applicant Matsutani Seisakusho Co., Ltd. Figure 2 4 =・'n''・-'/ :l − -5, ='-1-1''゛2 1, ・-1, 5-1,,:
-T... , :1. -1'',',゛ze',-゛8'''-24. Pa1°゛゛°・-゛"1-・-の・4-"'ゝ゛、・-9°1゛Figure 3 (A) 6 (B) 6 (C) 6
Claims (1)
と相似形を持った角断面を予めプレス成形し、平行な把
持面を有する上下２枚よりなるチャックに前述の如くプ
レス成形された多数の極細材の元部を一列状に並列して
把持せしめ、ｂ）つ該チャックの２枚の上下把持面を極
細材の軸心に直角に互いにズラスことによって前記極細
材の元部の多角形面を一斉に揃えてころがしながら極細
材の先部を砥石等によって所定の角形断面に研削してエ
ツジ及び刃先を形成することを特徴とした医療用極細材
の研削方法。 （１）[Scope of Claims] A chuck consisting of two upper and lower plates having parallel gripping surfaces, in which a corner cross-section similar to the square cross-section formed at the tip of the ultra-fine material is pre-press-formed on the base of the ultra-fine material. By gripping the base parts of a large number of ultra-fine materials press-formed as described above in a row, and (b) by shifting the two upper and lower gripping surfaces of the chuck at right angles to the axis of the ultra-fine materials. The ultra-fine material for medical use is characterized in that the tip of the ultra-fine material is ground to a predetermined square cross section with a grindstone or the like while the polygonal surfaces of the base of the ultra-fine material are aligned all at once to form edges and cutting edges. Grinding method. (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15415583A JPS6048249A (en) | 1983-08-25 | 1983-08-25 | Grinding method for medical ultrafine materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15415583A JPS6048249A (en) | 1983-08-25 | 1983-08-25 | Grinding method for medical ultrafine materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6048249A true JPS6048249A (en) | 1985-03-15 |
| JPS6335383B2 JPS6335383B2 (en) | 1988-07-14 |
Family
ID=15578042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15415583A Granted JPS6048249A (en) | 1983-08-25 | 1983-08-25 | Grinding method for medical ultrafine materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6048249A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591992A1 (en) * | 1992-10-09 | 1994-04-13 | United States Surgical Corporation | Apparatus for applying a cutting edge to a needle |
| EP0594005A1 (en) * | 1992-10-09 | 1994-04-27 | United States Surgical Corporation | Needle transporting apparatus |
| EP0650786A1 (en) * | 1993-10-08 | 1995-05-03 | United States Surgical Corporation | Cartridge fed apparatus for forming curved rectangular bodied needles |
| KR100582189B1 (en) | 2004-08-11 | 2006-05-23 | (주)케이.엠.피 | Workpiece Fixation Tool of Forming Grinding Machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5341088A (en) * | 1976-09-26 | 1978-04-14 | Matsutani Seisakusho | Method of polishing dental extremely fine knife |
-
1983
- 1983-08-25 JP JP15415583A patent/JPS6048249A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5341088A (en) * | 1976-09-26 | 1978-04-14 | Matsutani Seisakusho | Method of polishing dental extremely fine knife |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591992A1 (en) * | 1992-10-09 | 1994-04-13 | United States Surgical Corporation | Apparatus for applying a cutting edge to a needle |
| EP0594005A1 (en) * | 1992-10-09 | 1994-04-27 | United States Surgical Corporation | Needle transporting apparatus |
| EP0650786A1 (en) * | 1993-10-08 | 1995-05-03 | United States Surgical Corporation | Cartridge fed apparatus for forming curved rectangular bodied needles |
| KR100582189B1 (en) | 2004-08-11 | 2006-05-23 | (주)케이.엠.피 | Workpiece Fixation Tool of Forming Grinding Machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6335383B2 (en) | 1988-07-14 |
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