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JP4410210B2 - Suture needle - Google Patents
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JP4410210B2 - Suture needle - Google Patents

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JP4410210B2
JP4410210B2 JP2006099960A JP2006099960A JP4410210B2 JP 4410210 B2 JP4410210 B2 JP 4410210B2 JP 2006099960 A JP2006099960 A JP 2006099960A JP 2006099960 A JP2006099960 A JP 2006099960A JP 4410210 B2 JP4410210 B2 JP 4410210B2
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needle body
needle
body tissue
diameter
spiral
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JP2007268136A (en
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強 植竹
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Keisei Medical Industrial Co Ltd
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Keisei Medical Industrial Co Ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/04—Surgical instruments, devices or methods 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

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Description

本発明は、縫合針に関するものである。   The present invention relates to a suture needle.

従来から、外科手術で使用される縫合針として、針本体の周面対向位置にして長さ方向に直線状凹溝部が形成された縫合針（以下、従来例）が提案されている。   2. Description of the Related Art Conventionally, as a suture needle used in a surgical operation, a suture needle (hereinafter referred to as a conventional example) in which a linear concave groove portion is formed in a length direction at a position facing a circumferential surface of a needle body has been proposed.

この従来例は、体組織へ刺入した際、周面に形成された凹溝により刺入した部位（体組織）との接触面積が少なくなるため刺入抵抗が低減されることになり、よって、体組織への負荷がかかり難く良好な縫合作業が行えるとされる。   When this conventional example is inserted into the body tissue, the contact area with the site (body tissue) inserted through the recessed groove formed on the peripheral surface is reduced, so that the insertion resistance is reduced. It is said that a good suturing operation can be performed with little load on the body tissue.

本発明者は、この針本体の周面に凹溝が形成された縫合針について更なる研究・実験を重ね、その結果、従来にない作用効果を発揮する画期的な縫合針を開発した。   The inventor conducted further research and experiments on a suture needle having a concave groove formed on the peripheral surface of the needle body, and as a result, developed an innovative suture needle that exhibits an unprecedented effect.

添付図面を参照して本発明の要旨を説明する。   The gist of the present invention will be described with reference to the accompanying drawings.

湾曲状の針本体１の周面にして該針本体１の径が変化する部位には螺旋状凹溝部２が設けられ、また、前記針本体１の湾曲内面には平坦部４が設けられ、前記針本体１の径が変化する部位に連設され径が変化しない部位にして前記平坦部４には直線状凹溝部３が設けられていることを特徴とする縫合針に係るものである。 A spiral groove 2 is provided at a portion of the peripheral surface of the curved needle body 1 where the diameter of the needle body 1 changes, and a flat portion 4 is provided on the curved inner surface of the needle body 1. The present invention relates to a suture needle characterized in that a linear concave groove portion 3 is provided in the flat portion 4 so as to be a portion where the diameter of the needle body 1 is changed and is not changed .

また、請求項１記載の縫合針において、前記螺旋状凹溝２の螺旋方向は右螺旋方向に設定されていることを特徴とする縫合針に係るものである。 The suture needle according to claim 1, wherein the spiral direction of the spiral groove 2 is set to the right spiral direction .

また、請求項１，２いずれか１項に記載の縫合針において、前記針本体１の湾曲外面には平坦部５が設けられていることを特徴とする縫合針に係るものである。 The suture needle according to any one of claims 1 and 2, wherein a flat portion 5 is provided on the curved outer surface of the needle body 1 .

また、請求項１〜３いずれか１項に記載の縫合針において、前記針本体１の基端には縫合糸６を連結する連結部１ｂが設けられていることを特徴とする縫合針に係るものである。 The suture needle according to any one of claims 1 to 3, wherein a connecting portion 1b for connecting a suture thread 6 is provided at a proximal end of the needle body 1. Is.

本発明は上述のように構成したから、刺入した部位に対する刺入抵抗が可及的に低減されて良好な縫合が行なえることになるなど従来にない作用効果を発揮する画期的な縫合針となる。   Since the present invention is configured as described above, it is an epoch-making suture that exhibits unprecedented effects such as that the insertion resistance to the inserted site can be reduced as much as possible and good sewing can be performed. Become a needle.

好適と考える本発明の実施形態を、図面に基づいて本発明の作用を示して簡単に説明する。   An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

例えば体組織に刺入した際、針本体１の周面に設けられた螺旋状凹溝部２により体組織との接触面積が少なくなるため該体組織に対する刺入抵抗は可及的に低減される。   For example, when a body tissue is inserted, the contact area with the body tissue is reduced by the spiral concave groove portion 2 provided on the peripheral surface of the needle body 1, so that the insertion resistance to the body tissue is reduced as much as possible. .

また、本発明は、針本体１の周面に設けられる凹溝部として螺旋状凹溝部２を採用することで、体組織に刺入した際に生じ得る体組織の損傷を可及的に抑制できることになる。   Moreover, this invention can suppress as much as possible the damage of the body tissue which may arise when inserting in a body tissue by employ | adopting the spiral groove part 2 as a groove part provided in the surrounding surface of the needle | hook main body 1. FIG. become.

即ち、針本体１を先端から体組織へ刺入した際、体組織との接触は、針本体１が最も径小の先端から徐々に径大となるから、体組織は引き裂かれる方向に引っ張られ、針本体１を勢いよく刺入するほど、針本体１の刺入部位から裂けてしまう場合がある。この点、針本体１の周面に螺旋状凹溝部２を設けると、凹溝部は刺入抵抗の減少は勿論、体組織は可及的に針本体１の表面に添設するようになり、よって、体組織が刺入部位から裂けたりすることが可及的に防止される。   That is, when the needle body 1 is inserted into the body tissue from the tip, the contact with the body tissue gradually increases in diameter from the tip having the smallest diameter, so that the body tissue is pulled in the direction to be torn. As the needle body 1 is inserted more vigorously, the needle body 1 may tear from the insertion site. In this regard, when the spiral groove 2 is provided on the peripheral surface of the needle body 1, the groove is not only reduced in insertion resistance, but the body tissue is attached to the surface of the needle body 1 as much as possible. Therefore, it is possible to prevent the body tissue from tearing from the insertion site as much as possible.

従って、体組織との接触面積が少なくなるため刺入抵抗が可及的に低減され、しかも、体組織を損傷し難くなり、よって、良好な縫合作業が行なわれることになる。   Therefore, since the contact area with the body tissue is reduced, the penetration resistance is reduced as much as possible, and the body tissue is hardly damaged, and thus a satisfactory suturing operation is performed.

本発明の具体的な一実施例について図１〜９に基づいて説明する。 For one specific embodiment of the present invention will be described with reference to FIGS. 1-9.

本実施例は、外科手術で使用される縫合針である。   This embodiment is a suture needle used in a surgical operation.

具体的には、針本体１は、図１に図示したように適宜な金属製の部材を湾曲棒状に形成したものであり、その先端には先鋭部１ａが設けられ、基端には縫合糸６を嵌挿連結する連結部１ｂ（凹部）が設けられている。   Specifically, the needle body 1 is formed by forming an appropriate metal member into a curved bar shape as shown in FIG. 1, and has a sharpened portion 1a at the distal end and a suture thread at the proximal end. A connecting portion 1b (concave portion) for fitting and connecting 6 is provided.

また、針本体１は、図４に図示したようにその対向する湾曲内面１Ａ及び湾曲外面１Ｂに平坦部４，５が形成されている。   Further, as shown in FIG. 4, the needle body 1 has flat portions 4 and 5 formed on the curved inner surface 1A and the curved outer surface 1B facing each other.

また、針本体１は、その周面に螺旋状凹溝部２が設けられている。   Further, the needle body 1 is provided with a spiral groove 2 on its peripheral surface.

この螺旋状凹溝部２は、図１，２に図示したように該針本体１の先端部位から基端側の所定部位、具体的には、針本体１の径が径小から径大に徐々に変化する部位までに切削形成されている。   As shown in FIGS. 1 and 2, the spiral concave groove portion 2 is formed so that a predetermined portion from the distal end portion of the needle body 1 to the proximal end side, specifically, the diameter of the needle body 1 is gradually increased from a small diameter to a large diameter. It is formed by cutting up to the part that changes.

この螺旋状凹溝部２を設けたことにより、例えば体組織に刺入した際、該体組織との接触面積が少なくなるため該体組織に対する刺入抵抗は可及的に低減されることになる。   By providing the spiral groove 2, for example, when the body tissue is inserted, the contact area with the body tissue is reduced, so that the insertion resistance to the body tissue is reduced as much as possible. .

また、針本体１の周面に設けられる凹溝部として螺旋状凹溝部２を採用することで、体組織に刺入した際に生じ得る体組織の損傷を可及的に抑制できることになる。   In addition, by adopting the spiral groove portion 2 as the groove portion provided on the peripheral surface of the needle body 1, damage to the body tissue that may occur when the body tissue is inserted can be suppressed as much as possible.

また、この螺旋状凹溝部２の螺旋方向は右螺旋方向（右螺子状態）に設定されている。   The spiral direction of the spiral groove 2 is set to the right spiral direction (right screw state).

これは右手用に設定した場合であり、針本体１を右手で持ったピンセットで挟持して体組織へ刺入する際、右手の動き（手首のひねり）に伴い該針本体１をねじり込む動きが生じるが、螺旋状凹溝部２の螺旋方向を右螺旋方向とすることで、前記ねじり込みによる刺入抵抗がより良好に低減されることになる（図５〜７参照）。   This is a case where the needle body 1 is set for the right hand, and when the needle body 1 is pinched with tweezers held by the right hand and inserted into the body tissue, the needle body 1 is twisted with the movement of the right hand (wrist twist). However, when the spiral direction of the spiral groove portion 2 is set to the right spiral direction, the insertion resistance due to the twisting is further reduced (see FIGS. 5 to 7).

また、針本体１は、前述した螺旋状凹溝部２が形成される部位よりも基端側部位、具体的には、針本体１の径が変化しない部位に、針本体１の長さ方向に延びる直線状凹溝部３が設けられている。   In addition, the needle body 1 is arranged in the length direction of the needle body 1 at a base end side portion, more specifically, a portion where the diameter of the needle body 1 does not change, from the portion where the spiral groove portion 2 described above is formed. An extending linear groove 3 is provided.

この直線状凹溝部３は、図１，３，４に図示したように前述した針本体１の湾曲内面１Ａに形成された平坦部４に３本切削形成されている。   As shown in FIGS. 1, 3, and 4, three linear grooves 3 are formed in the flat portion 4 formed on the curved inner surface 1 </ b> A of the needle body 1 described above.

この直線状凹溝部３を設けたことにより、例えば体組織に刺入した針本体１を引き抜く際、針本体１の周面に設けられた直線状凹溝部３により体組織との接触面積が少なくなるため該体組織に対する刺入抵抗は可及的に低減されることになる。   By providing the linear groove 3, for example, when the needle body 1 inserted into the body tissue is pulled out, the contact area with the body tissue is reduced by the linear groove 3 provided on the peripheral surface of the needle body 1. Therefore, the penetration resistance to the body tissue is reduced as much as possible.

この直線状凹溝部３を湾曲内面１Ａの平坦部４にのみ形成したのは、体組織への良好な刺入と、製造簡易性が考慮された構成である。   The reason why the linear concave groove 3 is formed only on the flat portion 4 of the curved inner surface 1A is a configuration that allows for good insertion into the body tissue and ease of manufacture.

即ち、針本体１の湾曲内面１Ａ及び湾曲外面１Ｂ夫々の平坦部４，５に凹溝部を形成すればそれだけ刺入した体組織との接触面積が減るため良好な刺入が達成されることになるが、製造工程が増える分だけ生産性が悪くなってしまうという問題点がある。 That is, if the concave grooves are formed in the flat portions 4 and 5 of the curved inner surface 1A and the curved outer surface 1B of the needle body 1, the contact area with the inserted body tissue is reduced accordingly, so that good insertion can be achieved. However, there is a problem that productivity is deteriorated as the number of manufacturing processes increases.

この点、本実施例は、刺入した針本体１を引き抜くときに負荷のかかり易い部位（体組織との接触圧が大きくなる部位）である湾曲内面にのみ凹溝部を設ける構成とすることで、体組織への良好な刺入と、製造簡易性が確実に達成されることになる。尚、直線状凹溝部３は対向する２箇所に（針本体１の湾曲内面１Ａだけでなく湾曲外面１Ｂにも）設けるようにしても良い。   In this respect, the present embodiment is configured such that the concave groove portion is provided only on the curved inner surface, which is a portion where a load is easily applied (a portion where the contact pressure with the body tissue increases) when the inserted needle body 1 is pulled out. Thus, good penetration into the body tissue and ease of manufacture are surely achieved. In addition, you may make it provide the linear ditch | groove part 3 in 2 places (not only the curved inner surface 1A of the needle | hook main body 1 but the curved outer surface 1B) which opposes.

本実施例は、螺旋状凹溝部２を径の変化のある部位にのみに設けている。   In this embodiment, the spiral groove portion 2 is provided only at a portion where the diameter changes.

これは、体組織が裂けてしまう問題は刺入の際の針本体１の径の変化が主な原因である為、径の変化のない部分においてはそれ程体組織が裂けてしまう問題は生じない。従って、形成が厄介な螺旋状凹溝部２は径の変化する部位において設ければ十分であり、径の変化しない部分においては形成が簡易な直線状凹溝部３を設けることとしている（径の変化する部位を形成する作業時に同時に螺旋状凹溝部２を形成することは簡易に行える。）。   This is because the problem that the body tissue is torn is mainly caused by the change in the diameter of the needle body 1 at the time of insertion, so that there is no problem that the body tissue is torn so much in the portion where there is no change in the diameter. . Accordingly, it is sufficient to provide the spiral groove portion 2 which is difficult to form at a portion where the diameter changes, and the straight groove portion 3 which is easy to form is provided at a portion where the diameter does not change (change in diameter). It is easy to form the spiral groove 2 at the same time as the operation of forming the part to be performed.)

本実施例は、直線状凹溝部３を径の変化のない部位に積極的に設けている。   In this embodiment, the linear concave groove portion 3 is positively provided at a portion where the diameter does not change.

これは、径の変化のない部位は体組織を通過するだけでよいから、螺旋状凹溝部２であると反対に抵抗が生じてしまい、むしろ直線状凹溝部３が形成されていた方が良いと考えられるからであり、更に、針本体１の刺入する作業は、針本体１を直接手で持つのではなく、針本体１の略中央位置をピンセットで挟持することになるが、このピンセットで挟持する部位が螺旋状凹溝部２が形成されている場合に比し、直線状凹溝部３が形成されている場合の方が安定的な保持が達成されるからである。   This is because the portion having no change in diameter only needs to pass through the body tissue, and if it is the spiral groove portion 2, resistance is generated on the contrary, and it is better that the linear groove portion 3 is formed. Furthermore, the operation of inserting the needle body 1 does not directly hold the needle body 1 by hand, but clamps the approximate center position of the needle body 1 with tweezers. This is because stable holding is achieved in the case where the linear groove portion 3 is formed as compared with the case where the spiral groove portion 2 is formed in the portion sandwiched between the two.

本実施例は上述のように構成したから、体組織に刺入した際、針本体１の周面に設けられた螺旋状凹溝部２により体組織との接触面積が少なくなるため該体組織に対する刺入抵抗は可及的に低減される。   Since the present embodiment is configured as described above, when the body tissue is inserted, the contact area with the body tissue is reduced by the spiral groove portion 2 provided on the peripheral surface of the needle body 1. The penetration resistance is reduced as much as possible.

また、本実施例は、針本体１の周面に設けられる凹溝部として螺旋状凹溝部２を採用することで、体組織に刺入した際に生じ得る体組織の損傷を可及的に抑制できることになる。   In addition, the present embodiment employs the spiral groove portion 2 as the groove portion provided on the peripheral surface of the needle body 1, thereby suppressing as much as possible the damage to the body tissue that may occur when the body tissue is inserted. It will be possible.

図１０は針本体１として直線状の針本体１を採用した場合であり、この針本体１の周面に該針本体１の先端部位から基端側の所定部位、具体的には、針本体１の径が径小から径大に徐々に変化する部位までに螺旋状凹溝部２が設けられ、更に、螺旋状凹溝部２が形成される部位よりも基端側部位、具体的には、針本体１の径が変化しない部位に、針本体１の長さ方向に延びる直線状凹溝部３が設けられている。 FIG. 10 shows a case where a linear needle body 1 is employed as the needle body 1, and a predetermined portion from the distal end portion of the needle body 1 to the proximal end side, specifically, the needle body is arranged on the peripheral surface of the needle body 1. The spiral groove portion 2 is provided in a portion where the diameter of 1 gradually changes from a small diameter to a large diameter, and further, a proximal side portion from the portion where the spiral groove portion 2 is formed, specifically, A linear groove 3 extending in the length direction of the needle body 1 is provided at a portion where the diameter of the needle body 1 does not change.

その余は本実施例と同様である。 The rest is the same as in this embodiment .

本実施例を示す斜視図である。It is a perspective view which shows a present Example . 本実施例に係る螺旋状凹溝部の説明図である。It is explanatory drawing of the spiral groove part which concerns on a present Example . 本実施例に係る直線状凹溝部の説明図である。It is explanatory drawing of the linear groove part which concerns on a present Example . 図３のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 本実施例の使用状態説明図である。It is use condition explanatory drawing of a present Example . 本実施例の使用状態説明図である。It is use condition explanatory drawing of a present Example . 本実施例の使用状態説明図である。It is use condition explanatory drawing of a present Example . 本実施例の使用状態説明図である。It is use condition explanatory drawing of a present Example . 別実施例の使用状態説明図である。It is a use condition explanatory view of another example . 実施例２を示す斜視図である。FIG. 6 is a perspective view showing Example 2.

１ 針本体
１ｂ 連結部
２ 螺旋状凹溝部
３ 直線状凹溝部
４ 平坦部
５ 平坦部
６ 縫合糸 1 Needle body
1b connecting part 2 spiral groove part 3 linear groove part
4 flat part
5 flat part
6 sutures

Claims (4)

湾曲状の針本体の周面にして該針本体の径が変化する部位には螺旋状凹溝部が設けられ、また、前記針本体の湾曲内面には平坦部が設けられ、前記針本体の径が変化する部位に連設され径が変化しない部位にして前記平坦部には直線状凹溝部が設けられていることを特徴とする縫合針。 A spiral groove portion is provided in a portion of the peripheral surface of the curved needle body where the diameter of the needle body changes, and a flat portion is provided on the curved inner surface of the needle body. A suturing needle characterized in that a linear concave groove is provided in the flat portion so as to be a portion which is provided continuously with a portion where the diameter changes and the diameter does not change . 請求項１記載の縫合針において、前記螺旋状凹溝２の螺旋方向は右螺旋方向に設定されていることを特徴とする縫合針。The suturing needle according to claim 1, wherein the spiral direction of the spiral groove 2 is set to the right spiral direction. 請求項１，２いずれか１項に記載の縫合針において、前記針本体１の湾曲外面には平坦部５が設けられていることを特徴とする縫合針。The suture needle according to any one of claims 1 and 2, wherein a flat portion 5 is provided on the curved outer surface of the needle body 1. 請求項１〜３いずれか１項に記載の縫合針において、前記針本体１の基端には縫合糸６を連結する連結部１ｂが設けられていることを特徴とする縫合針。The suture needle according to any one of claims 1 to 3, wherein a connecting portion 1b for connecting a suture thread 6 is provided at a proximal end of the needle body 1.
JP2006099960A 2006-03-31 2006-03-31 Suture needle Expired - Fee Related JP4410210B2 (en)

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