JPH0467978B2 - - Google Patents
Info
- Publication number
- JPH0467978B2 JPH0467978B2 JP1262082A JP26208289A JPH0467978B2 JP H0467978 B2 JPH0467978 B2 JP H0467978B2 JP 1262082 A JP1262082 A JP 1262082A JP 26208289 A JP26208289 A JP 26208289A JP H0467978 B2 JPH0467978 B2 JP H0467978B2
- Authority
- JP
- Japan
- Prior art keywords
- needle
- crystal grains
- stainless steel
- wire
- suture
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 21
- 239000013078 crystal Substances 0.000 claims description 14
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 12
- 239000010935 stainless steel Substances 0.000 description 9
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 238000005491 wire drawing Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000004881 precipitation hardening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000005496 tempering 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
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
- A61B17/06004—Means for attaching suture to needle
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
- A61B17/06066—Needles, e.g. needle tip configurations
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (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)
- Materials For Medical Uses (AREA)
- Surgical Instruments (AREA)
Description
【発明の詳細な説明】
＜産業上の利用分野＞
本発明は医療用に使用されるアイレス縫合針に
係り、特に全体がステンレス鋼で構成されると共
に針先及びこれに続く針体と穴を設けた針元部と
の材料の性質を変えて構成したことを特徴とした
アイレス縫合針に関するものである。Detailed Description of the Invention <Field of Industrial Application> The present invention relates to an eyeless suture needle used for medical purposes, and in particular, the entire body is made of stainless steel, and the needle tip, the needle body and the hole following the needle tip are made of stainless steel. The present invention relates to an eyeless suture needle characterized in that it is constructed by changing the properties of the material of the needle base.
＜従来の技術＞
最近になつて縫合針の材料としてステンレス鋼
が広く利用されるようになつて来たが、縫合針材
として使用されるステンレス鋼は金属学的に大き
く分けて次の２種類がある。先ず最初の１種類は
現在主流となつている13Crステンレス鋼に代表
される焼入硬化処理可能なステンレス鋼であり、
次に他の１種類は加工硬化と折出硬化によつて硬
化するオーステナイト系ステンレス鋼で代表され
る焼入硬化不可能なステンレス鋼である。前者は
適当な軟らかさに処理して加工し、最終段階で焼
入硬化させるのに対し、後者は主に伸線加工によ
つて加工硬化させ、更に折出によつて硬化させる
ものであつて、伸線加工後はその硬度を下げずに
加工して、最終的に折出処理又はテンパー処理に
よつて多少硬化させるものである。<Prior art> Recently, stainless steel has come to be widely used as a material for suture needles, but the stainless steels used as suture needle materials can be roughly divided into the following two types metallurgically: There is. The first type is stainless steel that can be quenched and hardened, such as the currently mainstream 13Cr stainless steel.
The other type is stainless steel that cannot be hardened by quenching, typified by austenitic stainless steel that hardens through work hardening and precipitation hardening. The former is processed to an appropriate degree of softness and then quenched and hardened in the final stage, while the latter is work-hardened mainly through wire drawing and further hardened by folding. After the wire drawing process, the wire is processed without reducing its hardness, and finally it is hardened to some extent by depositing treatment or tempering treatment.
然るに上述の如き２種類のステンレス鋼をその
まま針材として使用した場合には、夫々の材質に
応じて例えば曲げに強くかつバネ性が大きいステ
ンレス鋼にあつては、穴明け加工が困難であると
共に穿設した穴に縫合糸を嵌入してかしめた場合
に糸の係合が悪く、従つて引張力が小さくなる欠
点があり、一方バネ性が弱く曲げに弱いステンレ
ス鋼を使用した場合には穴明け加工は容易であり
かつ穴に糸を嵌入してかしめた場合には糸の係合
が良く、従つて引張力が大きくなるが、その反面
で針先端部或いはこれに続く針体部が弱く曲がり
易い等の欠点があつた。 However, if the two types of stainless steels mentioned above are used as needle materials, depending on the material, for example, stainless steel, which is strong against bending and has high springiness, may be difficult to drill. When a suture thread is inserted into a drilled hole and caulked, the suture thread is not properly engaged and the tensile force is reduced. Opening is easy, and when the thread is inserted into the hole and swaged, the engagement of the thread is good and the tensile force is large, but on the other hand, the needle tip or the needle body that follows it is weak. It had drawbacks such as being easy to bend.
更に従来使用されているアイレス針は穴部もそ
の他の部分と同じ硬さの為に、大きくかしめ変形
させられないので、シルク，ガツト，ナイロン等
の糸種ごとで且つ２−０，３−０，４−０等の糸
サイズごとに針穴サイズが必要であり、このこと
が針の種類を膨大なものにしいている一因であつ
た。 Furthermore, since the hole part of the conventionally used eyeless needle has the same hardness as the other parts, it cannot be greatly deformed by caulking. , 4-0, etc., and this is one of the reasons why there are so many different types of needles.
＜発明が解決しようとする課題＞
本発明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つて、特に前述の後者の如き
焼入硬化不可能なオーステナイト系ステンレス鋼
である例えば、SUS304，SUS302，SUS631J1等
の材料を用いて針材を形成すると共にその針材の
位置によつて鋼材の組織を変えて構成しようとす
るものである。<Problems to be Solved by the Invention> The present invention is a completely new technology developed in view of these conventional drawbacks, and is particularly applicable to austenitic stainless steels that cannot be quench hardened, such as the latter mentioned above. , SUS304, SUS302, SUS631J1, etc., and the structure of the steel material is changed depending on the position of the needle.
＜課題を解決するための手段＞
本発明は特に医療用のステンレス鋼製アイレス
縫合針に於いて、材質がオーステナイト系ステン
レス鋼で針先及びこれに続く針体部分を夫々針長
方向と同一の方向に細長い結晶粒で形成された組
織で構成し、かつ穴が設けられた周辺の針元部分
を方向性のない結晶粒で形成された組織で構成し
たものである。<Means for Solving the Problems> The present invention provides a stainless steel eyeless suture needle for medical use, in which the material is austenitic stainless steel, and the needle tip and the needle body portion following the needle are aligned in the same direction in the needle length direction. It is composed of a structure formed of crystal grains elongated in the direction, and the needle base portion around the hole is composed of a structure formed of crystal grains without directionality.
＜作用＞
本発明に於いては上述の如く、針材としてオー
ステナイト系ステンレス鋼を使用すると共にその
針先及びこれに続く針体は夫々針長方向と同方向
に細長い結晶粒で構成したので、この部分は極め
て曲げに強くかつバネ性が大きいので、使用中に
折れる恐れもなく極めて安定した状態で使用出来
る特性を有し、更に針元部は方向性のない結晶粒
で構成されているので、バネ性が少なくて軟かい
為にかしめに対して容易に変形し易いので、縫合
糸の取り付けが簡単確実で糸の係合性が良く、従
つて引張力が著しく強く、且つかしめ変形を大き
くすることが出来るので、数種の糸種サイズを挿
入かしめることが出来る特性を有する。<Function> As described above, in the present invention, austenitic stainless steel is used as the needle material, and the needle tip and the needle body following it are each made of elongated crystal grains in the same direction as the needle length direction. This part is extremely resistant to bending and has great springiness, so it can be used in an extremely stable state without fear of breaking during use. Furthermore, the needle base is composed of crystal grains with no directionality. Because it has little springiness and is soft, it easily deforms when crimped, so the suture thread can be attached easily and reliably, and the thread engagement is good, so the tensile force is extremely strong, and the crimping deformation is large. Therefore, it has the property of being able to insert and caulk several types of yarn sizes.
＜実施例＞
図により本発明の一実施例を具体的に説明する
と次の通りである。<Example> An example of the present invention will be specifically described with reference to the drawings as follows.
即ち、第１図に於いて、１はSUS304のステン
レス鋼を使用した縫合針であつて、先端部の針先
Ａと、これに続く本体となる針体Ｂと、穴２を穿
設した針元部Ｃとより構成されている。 That is, in Fig. 1, 1 is a suture needle made of SUS304 stainless steel, which includes a needle tip A at the distal end, a needle body B that becomes the main body, and a needle with a hole 2. It is composed of a base part C.
次に前述の針先Ａ及び針体Ｂは第２図Ａにその
組織拡大図で示す如く、夫々針長方向と同方向に
極端に細長い結晶粒で形成された組織を持つた材
料で構成されている。一方前述の針元部Ｃは第２
図Ｂにその断面拡大図で示す如く、方向性のない
結晶粒で形成された組織を持つた材料を用いて構
成されている。 Next, as shown in the enlarged view of the structure in FIG. 2A, the aforementioned needle tip A and needle body B are each made of a material having a structure formed of extremely elongated crystal grains in the same direction as the needle length direction. ing. On the other hand, the needle base portion C mentioned above is
As shown in the enlarged cross-sectional view of FIG. B, it is constructed using a material having a structure formed of crystal grains without directionality.
本発明に係る前述の如く特性を持つたアイレス
縫合針を製造する工程につて説明すると次の通り
である。 The process of manufacturing the eyeless suture needle having the above-mentioned characteristics according to the present invention will be explained as follows.
先ずアイレス針となる焼入硬化不可能なオース
テナイト系ステンレス鋼の線材をリダクシヨン
（減面率、加工率）を大きくして伸線加工する。
例えば直径1.6mmの線材３を1100℃前後に加熱し
て固溶化熱処理し、第２図Ｂに示す如き結晶粒が
細長くない組織にして軟化させる。次に第３図に
示す如き何段かのダイス４によつて間に熱処理を
入れず一挙に直径0.7mmまで冷間伸線加工をし、
且つ加工マルテンサイトの誘発等により大きく加
工硬化させると共に第２図Ａに示す如き長さ方向
に極端に細長い結晶粒を持つた伸線組織（繊維状
組織）にする。このときの伸線前と伸線後の断面
積のリダクシヨンは（π2Ｄ／４−π2ｄ／４）／
（π2Ｄ／４）より81％となつている。この加工硬
化した伸線組織の線材３′は長さ方向に特に強靱
で縫合針材として非常に適したものであり、この
線材３′を適当な長さに切断し、かつ先端を尖ら
せて第４図に示す如き針材５を構成する。次に前
記針材５の穴明け部分６を例えばバーナーの火
炎、或いは電気抵抗，高周波誘導等によつて加熱
し、第２図Ｂの如き結晶粒の細長くない一般組織
にさせる。即ち針材５は穴明け部分６のみが軟ら
かく変形し易い第２図Ｂに示す如き長くない結晶
粒の一般組織にし、穴明け部分６以外の本体部は
硬く強靱な第２図Ａに示す如き針の長さ方向に極
端に細長い結晶粒をもつた伸線組織に構成する。 First, a wire rod of austenitic stainless steel that cannot be hardened by quenching, which will become the eyeless needle, is drawn by increasing the reduction (area reduction rate, processing rate).
For example, the wire 3 with a diameter of 1.6 mm is heated to around 1100° C. and subjected to solution heat treatment to soften the wire into a structure in which the crystal grains are not elongated as shown in FIG. 2B. Next, the wire is cold drawn to a diameter of 0.7 mm at once using several stages of dies 4 as shown in Figure 3, without any heat treatment in between.
In addition, the wire is greatly work-hardened by inducing worked martensite, etc., and a wire-drawn structure (fibrous structure) having extremely elongated crystal grains in the length direction is formed as shown in FIG. 2A. At this time, the reduction in cross-sectional area before and after wire drawing is (π 2 D/4−π 2 d/4)/
(π 2 D/4), it is 81%. This work-hardened drawn wire material 3' is particularly strong in the length direction and is very suitable as a suture needle material.This wire material 3' is cut to an appropriate length and the tip is sharpened. A needle material 5 as shown in FIG. 4 is constructed. Next, the perforated portion 6 of the needle material 5 is heated, for example, by the flame of a burner, electrical resistance, high frequency induction, etc., to form a general structure of crystal grains that are not elongated as shown in FIG. 2B. That is, only the perforated portion 6 of the needle material 5 has a general structure of short crystal grains as shown in FIG. 2B, which is soft and easily deformed, and the main body other than the perforated portion 6 is hard and tough as shown in FIG. 2A. It has a drawn wire structure with crystal grains that are extremely elongated in the length direction of the needle.
上記の如く構成された針材５に例えばドリルで
穴明け加工をするには第４図に示す如き装置によ
つて行う。これはスリーブ８と一体となつたチヤ
ツク９により針材５を把持し得る如く構成され、
且つ該チヤツク９は針材５を把持したままで高速
回転し得ると同時に矢印方向ａへ前進し得る如く
構成されている。また前記チヤツク９の軸心延長
線上には穴明け用のドリル１０が固設されている
と共に該ドリル１０の先端上部には切削剤噴射ノ
ズル１１が設けられ、該ノズル１１から切削剤が
吹き付けられる様に構成されている。 The needle material 5 constructed as described above is drilled, for example, by a device as shown in FIG. 4. This is constructed so that the needle material 5 can be gripped by a chuck 9 integrated with a sleeve 8.
Moreover, the chuck 9 is constructed so that it can rotate at high speed while holding the needle material 5 and move forward in the direction of the arrow a. Further, a drilling drill 10 is fixed on the axial extension line of the chuck 9, and a cutting agent injection nozzle 11 is provided at the top of the tip of the drill 10, and a cutting agent is sprayed from the nozzle 11. It is structured like this.
＜発明の効果＞
本発明に係るアイレス縫合針は上述の如き構造
と作用とを有するので、針先及びこれに続く針体
部分が夫々極めて曲げに強くバネ性が大きいと共
に、結晶粒が針長方向に長い繊維状であるので、
使用中に折れる恐れもなく、極めて安定した状態
で使用することが出来、かつ穴が穿設された針元
はバネ性が小さく延性が大きくかしめに対して容
易に変形し易いので、縫合糸の取り付けが簡単確
実であり更に糸との係合性が良く従つて引張力が
著しく強い。<Effects of the Invention> Since the eyeless suture needle according to the present invention has the above-described structure and function, the needle tip and the needle body portion following it are both extremely resistant to bending and have high springiness, and the crystal grains have a length of the needle. Since it is fibrous long in the direction,
There is no risk of it breaking during use, and it can be used in an extremely stable state.The needle base with a hole has little springiness, is ductile, and is easily deformed by caulking, so the suture thread Installation is simple and reliable, and the engagement with the thread is good, so the tensile force is extremely strong.
又更に、かしめ変形量を大きく取れるので、１
サイズの穴に数サイズの糸を取り付けることが可
能となり、従来糸サイズごとに針を用意していた
のに対し、針の種類を数分の１に出来るという経
済的に大きな効果も有するものである。 Furthermore, since the amount of caulking deformation can be increased, 1
It is now possible to attach threads of several sizes to holes of different sizes, and compared to the conventional method where needles were prepared for each thread size, this method also has the great economical effect of reducing the number of needle types to a fraction. be.
第１図は本発明に係る縫合針の説明図、第２図
はその針の組織を示す拡大説明図、第３図及び第
４図は縫合針を製造する工程を示す説明図であ
る。
１は縫合針、２は穴、３，３′は線材、４はダ
イス、５は針材、６は穴明け部分、１０はドリ
ル、Ａは針先、Ｂは針体、Ｃは針元である。
FIG. 1 is an explanatory diagram of a suturing needle according to the present invention, FIG. 2 is an enlarged explanatory diagram showing the structure of the needle, and FIGS. 3 and 4 are explanatory diagrams showing the steps of manufacturing the suturing needle. 1 is a suture needle, 2 is a hole, 3 and 3' are wire rods, 4 is a die, 5 is a needle material, 6 is a hole-drilling part, 10 is a drill, A is a needle tip, B is a needle body, and C is a needle base be.
Claims (1)
ステナイト系ステンレス鋼で針先及びこれに続く
針体部分を夫々針長方向と同一の方向に細長い結
晶粒で形成された組織で構成し、かつ穴が設けら
れた周辺の針元部分を方向性のない結晶粒で形成
された組織で構成したことを特徴としたアイレス
縫合針。1. In a medical eyeless suture needle, the material is austenitic stainless steel, the needle tip and the subsequent needle body are each composed of a structure formed of elongated crystal grains in the same direction as the needle length, and the needle has a hole. An eyeless suture needle characterized in that the needle base portion around which the eyeless suture needle is provided is composed of a structure formed of crystal grains without directionality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1262082A JPH02154746A (en) | 1989-10-09 | 1989-10-09 | Eyeless suturing needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1262082A JPH02154746A (en) | 1989-10-09 | 1989-10-09 | Eyeless suturing needle |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20252683A Division JPS6094231A (en) | 1983-10-31 | 1983-10-31 | Method of machining eyeless sewing needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02154746A JPH02154746A (en) | 1990-06-14 |
| JPH0467978B2 true JPH0467978B2 (en) | 1992-10-30 |
Family
ID=17370777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1262082A Granted JPH02154746A (en) | 1989-10-09 | 1989-10-09 | Eyeless suturing needle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02154746A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003047617A (en) * | 2001-08-07 | 2003-02-18 | Manii Kk | Medical suture needle |
| JP4604140B2 (en) * | 2004-09-13 | 2010-12-22 | マニー株式会社 | Medical needle or blade |
| JP2007229026A (en) * | 2006-02-28 | 2007-09-13 | Manii Kk | Eyeless suture needle |
| US8062437B2 (en) * | 2007-06-01 | 2011-11-22 | Ethicon, Inc. | Thermal forming of refractory alloy surgical needles and fixture and apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52146989A (en) * | 1976-05-28 | 1977-12-07 | American Cyanamid Co | Suturing yarn with stylus and method of producing same |
-
1989
- 1989-10-09 JP JP1262082A patent/JPH02154746A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52146989A (en) * | 1976-05-28 | 1977-12-07 | American Cyanamid Co | Suturing yarn with stylus and method of producing same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02154746A (en) | 1990-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5853423A (en) | Process for the manufacture of suture needles and needles produced thereby | |
| US3611551A (en) | Method for attaching suture and needle | |
| US5358498A (en) | Needled suture | |
| US5330441A (en) | Surgical suturing needle and method for making same | |
| JPH0683726B2 (en) | Guide wire for catheter | |
| JP2005532874A (en) | Surgical cobra head suture needle | |
| US20090163877A1 (en) | Cannula For An Injection Device, The Cannula Having A Tapered End, And A Method For Manufacturing the Same | |
| US8214996B2 (en) | Surgical needle swage tool | |
| JP4078467B2 (en) | Surgical needle | |
| JP2002253578A (en) | Dental reamer | |
| JPH0467978B2 (en) | ||
| USRE27735E (en) | Method for attaching suture needle | |
| EP2471467A1 (en) | Medical suture needle | |
| JP4214284B2 (en) | Dental root canal treatment instrument | |
| US8778102B2 (en) | Post laser drilling stress relief of surgical needles made of refractory alloys | |
| DE19719421C1 (en) | Production of acupuncture needles | |
| CN1100919A (en) | Suturing needle with suture and its producing method | |
| CN105361915B (en) | Medical suture needle | |
| RU2112434C1 (en) | Method for manufacture of atraumatic needle with thread (variants) | |
| JP2023177962A (en) | surgical suture tool | |
| JPS6094231A (en) | Method of machining eyeless sewing needle | |
| JP2834786B2 (en) | Medical needle | |
| RU2110964C1 (en) | Atraumatic needle | |
| JPS63183048A (en) | Operation needle with surture and its production | |
| JP2023523537A (en) | Composite suture needle with elastically deformable section |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |