JP2000139931A - Micro-suturing needle and its manufacture - Google Patents
Micro-suturing needle and its manufactureInfo
- Publication number
- JP2000139931A JP2000139931A JP32702498A JP32702498A JP2000139931A JP 2000139931 A JP2000139931 A JP 2000139931A JP 32702498 A JP32702498 A JP 32702498A JP 32702498 A JP32702498 A JP 32702498A JP 2000139931 A JP2000139931 A JP 2000139931A
- Authority
- JP
- Japan
- Prior art keywords
- section
- suturing needle
- micro
- suture
- needle
- 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.)
- Pending
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
- A61B17/04—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
-
- 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
- A61B17/06004—Means for attaching suture to needle
- A61B2017/06028—Means for attaching suture to needle by means of a cylindrical longitudinal blind bore machined at the suture-receiving end of the needle, e.g. opposite to needle tip
-
- 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
- A61B2017/06071—Needles, e.g. needle tip configurations with an abrupt angle formed between two adjacent sections
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- 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)
- Surgical Instruments (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、外科手術において
血管などの生体組織の縫合に用いられるマイクロ縫合針
およびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microsuture needle used for suturing a living tissue such as a blood vessel in a surgical operation, and a method for manufacturing the same.
【０００２】[0002]
【発明が解決しようとする課題】図１４は、従来のマイ
クロ縫合針の一例を示している。縫合針本体１は、ステ
ンレス鋼などからなり、細長くて円弧状に湾曲してい
る。一般的に、その円弧長（アーチ）は３〜10mm程度で
あり、太さは0.05〜0.4mm程度である。また、前記円弧
の中心角（サークル）は90〜180°程度である。そし
て、縫合針本体１の一端部のスウェッジ部２にはナイロ
ンなどからなる縫合糸３がかしめて結合されており、縫
合針本体１の反対側の先端部は鋭利な刃部４になってい
る。そして、従来の縫合針本体１は、刃部４を含めてほ
ぼ全体を断面ほぼ円形状にするか、刃部４側のせいぜい
半分程度の部分を断面角形状に形成していた。この断面
形状の違いは用途などによる。図示の縫合針本体１は、
刃部４を三角錐形状にし、刃部４側の約半分の部分５を
断面四角形状に形成したものであるが、スウェッジ部２
側の約半分の部分６は、断面直線状の面７もあって断面
ほぼ楕円形状になっているものの、基本的には断面円形
状になっている。FIG. 14 shows an example of a conventional microsuture needle. The suture needle main body 1 is made of stainless steel or the like, and is slender and curved in an arc shape. Generally, the arc length (arch) is about 3 to 10 mm and the thickness is about 0.05 to 0.4 mm. The central angle (circle) of the arc is about 90 to 180 °. A suture thread 3 made of nylon or the like is caulked and connected to the swage portion 2 at one end of the suture needle main body 1, and the tip of the suture needle main body 1 on the opposite side is a sharp blade 4. . The conventional suturing needle main body 1 has a substantially circular section in its entirety including the blade section 4, or has at most a half of the blade section 4 side in a square cross section. This difference in cross-sectional shape depends on the application. The illustrated suture needle body 1
The blade portion 4 is formed in a triangular pyramid shape, and the half portion 5 on the blade portion 4 side is formed in a square cross section.
The half part 6 on the side has a cross-sectionally straight surface 7 and is substantially elliptical in cross section, but is basically circular in cross section.
【０００３】しかし、このように縫合針本体１の多くの
部分が断面円形状になっている従来のマイクロ縫合針で
は、切れ味が悪い、すなわち生体組織に対する貫通性が
悪い問題があった。However, the conventional micro-suture needle in which a large portion of the suture needle main body 1 has a circular cross section has a problem that the sharpness is poor, that is, the penetrability to a living tissue is poor.
【０００４】また、従来の縫合針本体１では、断面円形
状の原材料に対して研削を施すことにより、刃部４側の
部分５などの平面部を形成するようにしていた。In the conventional suturing needle main body 1, a flat portion such as the portion 5 on the blade portion 4 side is formed by grinding a raw material having a circular cross section.
【０００５】しかし、研削により縫合針本体１の断面形
状を形成するのでは、この縫合針本体１の強度が上がら
ず、その耐久性が悪く、破損を生じやすい問題があっ
た。However, when the cross-sectional shape of the suture needle main body 1 is formed by grinding, there is a problem that the strength of the suture needle main body 1 does not increase, its durability is poor, and breakage is apt to occur.
【０００６】本発明は、このような問題点を解決しよう
とするもので、生体組織に対する貫通性に優れ、鋭利な
切れ味が得られるマイクロ縫合針を提供することを第1
の目的とする。また、縫合針本体の強度および耐久性を
高められるマイクロ縫合針の製造方法を提供することを
第２の目的とする。[0006] The present invention is intended to solve such a problem, and it is an object of the present invention to provide a micro-suture needle having excellent penetrability into a living tissue and capable of obtaining a sharp cutting edge.
The purpose of. It is a second object of the present invention to provide a method for manufacturing a micro suturing needle that can increase the strength and durability of a suturing needle body.
【０００７】[0007]
【課題を解決するための手段】請求項１の発明は、前記
第1の目的を達成するために、湾曲した縫合針本体の一
端部のスウェッジ部に縫合糸を結合してなるマイクロ縫
合針において、縫合針本体の先端部の刃部以外のほぼ全
体を断面角形状にしたものである。According to a first aspect of the present invention, there is provided a micro-suture needle comprising a curved suture needle body and a suture thread connected to a swage portion at one end thereof. In addition, almost the entirety of the suture needle main body except for the blade portion at the distal end portion has a square cross section.
【０００８】この断面形状により、生体組織に対する優
れた貫通性が得られ、鋭利な切れ味が得られる。[0008] Due to this cross-sectional shape, excellent penetrability to living tissue is obtained, and sharp sharpness is obtained.
【０００９】請求項２の発明は、請求項１の発明のマイ
クロ縫合針において、前記縫合針本体の先端部の刃部以
外のほぼ全体を断面四角形状にしたものである。According to a second aspect of the present invention, in the micro suturing needle according to the first aspect of the present invention, substantially the entirety of the suture needle main body other than the blade at the distal end portion has a square cross section.
【００１０】断面四角形状は、この断面形状を鍛造によ
り形成する場合にも適している。[0010] The rectangular cross section is also suitable for forming this cross sectional shape by forging.
【００１１】請求項３の発明は、請求項１または２の発
明のマイクロ縫合針において、前記縫合針本体の先端部
の刃部を三角錐形状にしたものである。According to a third aspect of the present invention, in the micro suturing needle according to the first or second aspect of the present invention, the blade portion at the distal end of the suturing needle body has a triangular pyramid shape.
【００１２】この三角錐形状の刃部は、特に鋭利な切れ
味を得るのに適している。The triangular pyramid-shaped blade is particularly suitable for obtaining a sharp cutting edge.
【００１３】請求項４の発明は、請求項１または２の発
明のマイクロ縫合針において、前記縫合針本体の先端部
の刃部を円錐形状にしたものである。According to a fourth aspect of the present invention, in the micro suturing needle according to the first or second aspect of the present invention, the blade portion at the distal end portion of the suturing needle body has a conical shape.
【００１４】この円錐形状の刃部は、特に生体組織の損
傷を抑制するのに適している。The conical blade is particularly suitable for suppressing damage to living tissue.
【００１５】請求項５の発明は、前記第1および第２の
目的を達成するために、湾曲した縫合針本体の一端部の
スウェッジ部に縫合糸を結合してなるマイクロ縫合針の
製造方法において、鍛造により金属製の縫合針本体の先
端部の刃部以外のほぼ全体を断面角形状に形成するもの
である。According to a fifth aspect of the present invention, there is provided a method for manufacturing a micro-suture needle, wherein a suture is connected to a swage portion at one end of a curved suture needle body to achieve the first and second objects. In addition, almost the entirety of the metallic suture needle main body other than the blade portion is formed into a square cross section by forging.
【００１６】この断面形状により、生体組織に対する優
れた貫通性が得られ、鋭利な切れ味が得られる。また、
この断面形状を形成するのに鍛造を利用することによ
り、縫合針本体の金属組織が緻密になるとともに鍛流線
が生成されて、縫合針本体の強度および耐久性が向上す
る。[0016] By this cross-sectional shape, excellent penetrability into living tissue is obtained, and a sharp edge is obtained. Also,
By using forging to form this cross-sectional shape, the metal structure of the suture needle main body becomes denser and a forging line is generated, thereby improving the strength and durability of the suture needle main body.
【００１７】請求項６の発明は、請求項５の発明のマイ
クロ縫合針の製造方法において、前記鍛造後に、前記刃
部を形成するとともに、前記縫合針本体を湾曲させるも
のである。According to a sixth aspect of the present invention, in the method for manufacturing a micro suturing needle according to the fifth aspect of the present invention, after the forging, the blade portion is formed and the suturing needle body is curved.
【００１８】このように鍛造後に刃部を形成することに
より、この刃部についても高い強度および耐久性が得ら
れる。また、縫合針本体の湾曲前に鍛造を行えば、この
鍛造が容易にできる。By forming the blade portion after forging in this way, high strength and durability can be obtained also for this blade portion. Further, if forging is performed before bending the suture needle main body, the forging can be easily performed.
【００１９】[0019]
【発明の実施形態】以下、本発明の実施例について説明
する。まず、マイクロ縫合針の構成について説明する。
図１から図３はマイクロ縫合針の第1例、図４から図６
はマイクロ縫合針の第２例を示している。これらの図に
おいて、11は縫合針本体で、この縫合針本体11は金属、
例えばＳＵＳ３０４系の特殊なステンレス鋼からなって
いる。そして、縫合針本体11は細長くて円弧状に湾曲し
ており、一端部のスウェッジ部12にナイロンなどからな
る縫合糸13が結合されている。また、縫合針本体11の反
対側の先端部は鋭利な刃部14,15になっている。Embodiments of the present invention will be described below. First, the configuration of the micro suturing needle will be described.
1 to 3 show a first example of a micro suture needle, and FIGS.
Shows a second example of the micro suturing needle. In these figures, reference numeral 11 denotes a suture needle main body, and the suture needle main body 11 is made of metal,
For example, it is made of a special stainless steel of SUS304 series. The suture needle main body 11 is slender and curved in an arc shape, and a suture thread 13 made of nylon or the like is connected to a swage portion 12 at one end. Further, the distal end portion on the opposite side of the suturing needle main body 11 has sharp blade portions 14 and 15.
【００２０】そして、前記縫合針本体11は、スウェッジ
部12および刃部14,15以外の全体が断面四角形状になっ
ている。すなわち、断面形状がほぼ直線状の４つの側面
16を有している。一方、スウェッジ部12は、断面ほぼ円
形状になっているが、その断面積は前記断面四角形状の
部分の断面積よりも小さい。また、刃部14,15は、断面
四角形状の部分から先端に向かって細くなるテーパー状
になっている。そして、第1例のマイクロ縫合針では、
刃部14が三角錐形状になっている。また、この三角錐形
状の部分と前記断面四角形状の部分との間には円錐台形
状部17がある。一方、第２例のマイクロ縫合針では、刃
部15が円錐形状になっている。The entire body of the suturing needle body 11 except for the swage portion 12 and the blade portions 14 and 15 has a square cross section. In other words, four side surfaces whose cross-sectional shape is almost straight
Has 16 On the other hand, the swage portion 12 has a substantially circular cross section, but the cross sectional area is smaller than the cross sectional area of the rectangular cross section. Further, the blade portions 14 and 15 have a tapered shape that becomes thinner toward the tip from a portion having a square cross section. And in the micro suture needle of the first example,
The blade 14 has a triangular pyramid shape. Further, there is a truncated conical portion 17 between the triangular pyramid portion and the quadrangular section. On the other hand, in the micro suturing needle of the second example, the blade portion 15 has a conical shape.
【００２１】本マイクロ縫合針は、外科手術において血
管などの生体組織の縫合に用いられる。すなわち、持針
器などにより操作され、被縫合部の一方から他方へ刺し
通され、ここに縫合糸13を通すのに用いられる。その
際、縫合針本体11のほぼ全体すなわちスウェッジ部12お
よび刃部14,15以外の全体が断面四角形状になっている
ことにより、生体組織に対する優れた貫通性が得られ、
鋭利な切れ味が得られる。The micro-suturing needle is used for suturing a living tissue such as a blood vessel in a surgical operation. That is, it is operated by a needle holder or the like, pierced from one side of the sutured portion to the other, and used to pass the suture 13 therethrough. At that time, almost the entire suturing needle body 11, that is, the entirety other than the swage portion 12 and the blade portions 14, 15 has a rectangular cross section, so that excellent penetration into living tissue is obtained,
A sharp edge is obtained.
【００２２】刃部14が三角錘形状になっている第1例の
マイクロ縫合針は、貫通性に優れ、特に鋭利な切れ味を
得るのに適している。軟らかい生体組織にも硬い生体組
織にも適用できる。適用部位は血管、神経、テノン膜、
筋肉組織などである。一方、刃部15が円錐形状になって
いる第２例のマイクロ縫合針は、特に生体組織の損傷を
抑制するのに適しており、軟らかい生体組織に適してい
る。適用部位は血管、神経などである。The micro-suturing needle of the first example, in which the blade portion 14 has a triangular pyramid shape, has excellent penetrability and is particularly suitable for obtaining sharp sharpness. It can be applied to both soft and hard living tissues. The application site is blood vessels, nerves, Tenon's membrane,
Muscle tissue. On the other hand, the micro-suture needle of the second example in which the blade portion 15 has a conical shape is particularly suitable for suppressing damage to living tissue, and is suitable for soft living tissue. The application site is a blood vessel, a nerve, or the like.
【００２３】つぎに、前記マイクロ縫合針の製造方法の
一例について、図７から図１３を参照しながら説明す
る。縫合針本体11の原材料は断面円形状の線材11Aであ
り、この線材11Aは、図７に示すように当初コイル状に
巻いてある。Next, an example of a method for manufacturing the micro suture needle will be described with reference to FIGS. The raw material of the suture needle main body 11 is a wire 11A having a circular cross section, and this wire 11A is initially wound in a coil shape as shown in FIG.
【００２４】つぎに、図８に示すように、線材11Aを直
線状に伸ばし、剪断機21により規定の長さに切断する
（切断工程）。このようにして得られたワーク11Bは円
柱形状である。Next, as shown in FIG. 8, the wire 11A is stretched linearly and cut into a specified length by a shearing machine 21 (cutting step). The work 11B obtained in this way has a cylindrical shape.
【００２５】つぎに、図９に示すように、この円柱形状
のワーク11Bを鍛造型22によりプレス加工して四角柱形
状にする（鍛造工程）。すなわち、この段階で、ワーク
11Bの断面形状は四角形状になる。四角柱形状は鍛造に
適したものであり、金属組織の緻密化などの鍛造の効果
も良好に得られる。Next, as shown in FIG. 9, the cylindrical work 11B is pressed by a forging die 22 into a quadrangular prism shape (forging step). That is, at this stage, the work
The cross-sectional shape of 11B is square. The quadrangular prism shape is suitable for forging, and good forging effects such as densification of the metal structure can be obtained well.
【００２６】つぎに、図１０に示すように、別のプレス
型23を用いて、ワーク11Bの端部にスウェッジ部12とな
るチャンネル部12Aをプレス成形する（チャンネルプレ
ス工程）。Next, as shown in FIG. 10, a channel portion 12A to be the swage portion 12 is press-formed at the end of the work 11B by using another press die 23 (channel press step).
【００２７】次の工程はポリッシング工程である。この
ポリッシング工程では、ワーク11Bに対してバリの除去
や、角部へのＲ付けを行う。The next step is a polishing step. In this polishing step, burrs are removed from the work 11B, and rounding is performed on the corners.
【００２８】つぎに、図１１に示すように、ワーク11B
におけるチャンネル部12Aと反対側の端部に、研削など
により刃部14,15を形成する（刃付け工程）。なお、こ
の刃付け後、超音波洗浄機によりワーク11Bを洗浄す
る。Next, as shown in FIG.
The blades 14, 15 are formed by grinding or the like at the end opposite to the channel 12A in (2) (blading step). After the blade is attached, the work 11B is cleaned by an ultrasonic cleaner.
【００２９】つぎに、図１２に示すように、ワーク11B
を円弧状に湾曲させる（ベンディング工程）。Next, as shown in FIG.
Is bent in an arc shape (bending step).
【００３０】さらに、図１３に示すように、アタッチン
グマシーンにより縫合針本体11となるワーク11Bのチャ
ンネル部12Aに縫合糸13をかしめて結合する（アタッチ
ング工程）。これにより、マイクロ縫合針が完成する。
なお、このアタッチング工程と前記ベンディング工程と
は順序が逆になる場合がある。Further, as shown in FIG. 13, the suture thread 13 is caulked to the channel portion 12A of the work 11B to be the suturing needle body 11 by an attaching machine (attaching step). Thereby, the micro suturing needle is completed.
The order of the attaching step and the bending step may be reversed.
【００３１】以上の製造方法によれば、鍛造によって縫
合針本体11を断面四角形状に形成するので、縫合針本体
11の金属組織が緻密になるとともに鍛流線が生成され
て、縫合針本体11の強度および耐久性が向上する。した
がって、使用中に縫合針本体11が破損してしまうことを
防止できる。また、刃部14,15は、縫合針本体11（ワー
ク11B）を四角柱形状にする鍛造工程後に形成するの
で、この刃部14,15についても高い強度および耐久性が
得られる。According to the manufacturing method described above, the suture needle main body 11 is formed in a square cross section by forging.
As the metal structure of the eleventh body becomes dense, a torsion line is generated, and the strength and durability of the suture needle main body 11 are improved. Therefore, it is possible to prevent the suture needle main body 11 from being damaged during use. Further, since the blade portions 14 and 15 are formed after the forging step of forming the suture needle main body 11 (work 11B) into a quadrangular prism shape, the blade portions 14 and 15 also have high strength and durability.
【００３２】さらに、縫合針本体11（ワーク11B）を円
弧状に湾曲させる前の、ワーク11Bが直線状の段階で、
このワーク11Bを断面四角形状に鍛造するので、この鍛
造を確実かつ容易に行える。Further, before the suturing needle main body 11 (work 11B) is curved in an arc shape, the work 11B is straightened,
Since the work 11B is forged into a square cross section, the forging can be performed reliably and easily.
【００３３】なお、本発明は、前記実施例に限定される
ものではなく、種々の変形実施が可能である。例えば、
縫合針本体は断面四角形状に限るものではなく、断面三
角形状あるいは断面五角形状などでもよく、要は断面角
形状であればよい。また、刃部の形状も、前記実施例の
ものには限らない。It should be noted that the present invention is not limited to the above embodiment, and various modifications can be made. For example,
The main body of the suture needle is not limited to a square cross section, but may be a triangular cross section or a pentagonal cross section. Further, the shape of the blade is not limited to that of the above-described embodiment.
【００３４】[0034]
【発明の効果】請求項１の発明のマイクロ縫合針によれ
ば、縫合針本体の先端部の刃部以外のほぼ全体を断面角
形状にしたので、生体組織に対する優れた貫通性が得ら
れ、鋭利な切れ味が得られる。According to the micro suturing needle of the first aspect of the present invention, since the whole of the suturing needle body other than the blade at the distal end portion has a square cross section, excellent penetrability to living tissue can be obtained. A sharp edge is obtained.
【００３５】請求項２の発明によれば、請求項１の発明
の効果に加えて、縫合針本体の先端部の刃部以外のほぼ
全体を断面四角形状にしたので、この断面形状を鍛造に
より良好に形成できる。According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, almost the entirety of the suture needle main body other than the blade at the distal end portion is formed in a square cross section, so that this cross sectional shape is formed by forging. It can be formed well.
【００３６】請求項３の発明によれば、請求項１または
２の発明の効果に加えて、刃部を三角錐形状にしたの
で、よりいっそう鋭利な切れ味が得られる。According to the third aspect of the present invention, in addition to the effects of the first or second aspect, the blade portion is formed in a triangular pyramid shape, so that a sharper sharpness can be obtained.
【００３７】請求項４の発明によれば、請求項１または
２の発明の効果に加えて、刃部を円錐形状にしたので、
生体組織の損傷を抑制できる。According to the invention of claim 4, in addition to the effect of the invention of claim 1 or 2, the blade portion is formed in a conical shape.
Damage to living tissue can be suppressed.
【００３８】請求項５の発明によれば、鍛造により金属
製の縫合針本体の先端部の刃部以外のほぼ全体を断面角
形状に形成するので、生体組織に対する優れた貫通性が
得られ、鋭利な切れ味が得られる。また、前記鍛造によ
り、縫合針本体の金属組織が緻密になるとともに鍛流線
が生成されるので、縫合針本体の強度および耐久性を向
上できる。According to the fifth aspect of the present invention, substantially the entirety of the metallic suture needle main body except the blade at the distal end is formed into a square cross section by forging, so that excellent penetration into living tissue can be obtained. A sharp edge is obtained. Further, the metal structure of the suturing needle body becomes denser and a forging line is generated by the forging, so that the strength and durability of the suturing needle body can be improved.
【００３９】請求項６の発明によれば、請求項５の発明
の効果に加えて、前記鍛造後に、刃部を形成するととも
に、縫合針本体を湾曲させるので、刃部についても高い
強度および耐久性が得られるとともに、鍛造を容易にで
きる。According to the invention of claim 6, in addition to the effect of the invention of claim 5, the blade portion is formed and the suture needle main body is curved after the forging, so that the blade portion has high strength and durability. And forging can be facilitated.
【図１】本発明の実施例を示すもので、マイクロ縫合針
の第１例の一部を断面にした斜視図である。FIG. 1 shows an embodiment of the present invention, and is a perspective view in which a part of a first example of a micro suturing needle is sectioned.
【図２】同上斜視図である。FIG. 2 is a perspective view of the same.
【図３】同上針部の正面図である。FIG. 3 is a front view of the needle unit.
【図４】本発明の実施例を示すもので、マイクロ縫合針
の第２例の一部を断面にした斜視図である。FIG. 4 is a perspective view showing an embodiment of the present invention and showing a part of a second example of a micro suturing needle in section.
【図５】同上斜視図である。FIG. 5 is a perspective view of the same.
【図６】同上針部の正面図である。FIG. 6 is a front view of the needle unit.
【図７】本発明のマイクロ縫合針の製造方法の一実施例
を示すもので、原材料の斜視図である。FIG. 7 is a perspective view of a raw material, showing one embodiment of the method for manufacturing a microsuture needle of the present invention.
【図８】同上切断工程を示す斜視図である。FIG. 8 is a perspective view showing a cutting step of the above.
【図９】同上鍛造工程を示す斜視図である。FIG. 9 is a perspective view showing the forging step.
【図１０】同上チャンネルプレス工程を示す斜視図であ
る。FIG. 10 is a perspective view showing a channel press step of the same.
【図１１】同上刃付け工程を示す斜視図である。FIG. 11 is a perspective view showing the same blade attaching step.
【図１２】同上ベンディング工程を示す斜視図である。FIG. 12 is a perspective view showing a bending step of the same.
【図１３】同上アタッチング工程を示す斜視図である。FIG. 13 is a perspective view showing an attaching step of the above.
【図１４】従来のマイクロ縫合針の一例を示す斜視図で
ある。FIG. 14 is a perspective view showing an example of a conventional microsuture needle.
11 縫合針本体 12 スウェッジ部 13 縫合糸 14 刃部 15 刃部 11 Main body of suture needle 12 Swage part 13 Suture thread 14 Blade part 15 Blade part
Claims (6)
ジ部に縫合糸を結合してなるマイクロ縫合針において、
縫合針本体の先端部の刃部以外のほぼ全体を断面角形状
にしたことを特徴とするマイクロ縫合針。1. A micro-suture needle comprising a curved suture needle body and a suture thread coupled to a swage part at one end,
A micro suturing needle characterized in that substantially the entirety of the suturing needle body other than the blade portion at the distal end has a square cross section.
ぼ全体を断面四角形状にしたことを特徴とする請求項１
記載のマイクロ縫合針。2. A substantially square section of the suture needle main body except for a blade portion at a distal end portion thereof.
The microsuturing needle as described.
形状にしたことを特徴とする請求項１または２記載のマ
イクロ縫合針。3. The micro suturing needle according to claim 1, wherein a blade portion at a distal end of the suturing needle body has a triangular pyramid shape.
状にしたことを特徴とする請求項１または２記載のマイ
クロ縫合針。4. The micro suturing needle according to claim 1, wherein the blade portion at the distal end of the suturing needle body has a conical shape.
ジ部に縫合糸を結合してなるマイクロ縫合針の製造方法
において、鍛造により金属製の縫合針本体の先端部の刃
部以外のほぼ全体を断面角形状に形成することを特徴と
するマイクロ縫合針の製造方法。5. A method for manufacturing a micro-suture needle in which a suture is connected to a swedge part at one end of a curved suture needle main body, wherein substantially the entirety of the metal suture needle main body except for the blade part at the distal end by forging. The method for producing a micro-suture needle according to claim 1, wherein the cross-section is formed into a square cross section.
もに、前記縫合針本体を湾曲させることを特徴とする請
求項５記載のマイクロ縫合針の製造方法。6. The method for producing a micro-suture needle according to claim 5, wherein after the forging, the blade portion is formed and the suture needle main body is curved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32702498A JP2000139931A (en) | 1998-11-17 | 1998-11-17 | Micro-suturing needle and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32702498A JP2000139931A (en) | 1998-11-17 | 1998-11-17 | Micro-suturing needle and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000139931A true JP2000139931A (en) | 2000-05-23 |
Family
ID=18194466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32702498A Pending JP2000139931A (en) | 1998-11-17 | 1998-11-17 | Micro-suturing needle and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000139931A (en) |
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-
1998
- 1998-11-17 JP JP32702498A patent/JP2000139931A/en active Pending
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