JP3868410B2 - Suture with needle - Google Patents

Description

Translated fromJapanese

本発明は、針付縫合針、特にコスメティックサージェリー、例えば重瞼形成術に適する針付縫合糸の針形状の改良に関する。  The present invention relates to an improvement in the needle shape of a suture needle with a needle, particularly a cosmetic surgery, for example, a suture thread with a needle suitable for plication surgery.

従来から、重瞼、例えば二重瞼を形成するための重瞼埋没法が広く知られている。この重瞼埋没法は、上瞼表皮と皮膚組織内の瞼板とを縫合糸で縫着し、この縫合糸によって瞼板側に引っ張られた表皮部分が内側に埋没してライン付けがなされ、例えば二重瞼を形成する。  2. Description of the Related Art Conventionally, a method of burying heavy iron for forming heavy iron, for example, double iron is widely known. In this burial method, the upper epidermis and the skin plate in the skin tissue are sewn together with a suture, and the epidermis part pulled to the side of the skin by this suture is buried inside and lined, For example, a double fold is formed.

図３は、従来の重瞼埋没法の工程例を示す図である。  FIG. 3 is a diagram showing a process example of a conventional heavy padding method.

重瞼埋没法には、一般的に、縫合糸の両端に針が固定された両端針付縫合糸が使用される。針は、組織の損傷を少なくするために断面円形形状の丸針が用いられ、その丸針の基端側は持針器で挟持する為に偏平に成形されている。例えば、二重瞼の施術を行う場合、二重瞼のデザインにより縫合点（刺入点）を決定し、図３（Ａ）（Ｂ）に示すように、皮膚側、瞼板側に縫合点Ａ，Ｂをマーキングする。局所麻酔後、図３（Ａ）に示すように、施術後、縫合糸及び結紮部を皮下に埋没させるために、縫合点Ａをメス３０で１〜２ｍｍ切開し、更に細部剪刀等で拡張し切開部３２を形成する。次に、図３（Ｂ）に示すように、眼瞼を反転させ、瞼と眼球の間に角膜保護板３４を挿入し、持針器３６で両端針付縫合糸３８の一方の丸針４０の挟持部４０ａを挟持して、丸針４０を瞼板側の縫合点Ａから皮膚側の縫合点Ａに刺通する。同様に、他方の丸針４２を瞼板側の縫合点Ｂから皮膚側の縫合点Ｂに刺通する（図３（Ｃ））。図３（Ｄ）は、縫合点Ａ、Ｂに縫合糸４４が通った状態を示している。次に、丸針４２を縫合点Ｂから外皮から浅い皮膚内を通過させ、縫合点Ａに刺通させる（図３（Ｅ））。その後、縫合糸４４を点線で示す適当な長さで切り、丸針４０、４２を取り除く（図３（Ｆ））。縫合点Ａにブジー４６を置き、３〜４回結び、結紮部４８より１ｍｍ程度残して切離する（図３（Ｇ））。結紮部４８を切開部３２に埋入させ、施術を終了する（図３（Ｈ））。  Generally, a double-ended needle-attached suture in which needles are fixed to both ends of the suture is used in the double burial method. In order to reduce tissue damage, a round needle having a circular cross section is used as the needle, and the proximal end side of the round needle is formed flat so as to be held by a needle holder. For example, when performing double scissors treatment, the suture point (the insertion point) is determined by the design of the double scissors, and as shown in FIGS. 3A and 3B, the suture points A and B are provided on the skin side and the scalp side. Mark. After the local anesthesia, as shown in FIG. 3 (A), after the operation, in order to embed the suture thread and the ligature portion subcutaneously, the suture point A is incised 1 to 2 mm with ascalpel 30 and further expanded with a detailed scissors or the like. Anincision 32 is formed. Next, as shown in FIG. 3 (B), the eyelid is inverted, thecorneal protection plate 34 is inserted between the eyelid and the eyeball, and one of theround needles 40 of thesuture thread 38 with both ends is held by theneedle holder 36. Thepinching part 40a is pinched, and theround needle 40 is pierced from the stitching point A on the side of the base plate to the stitching point A on the skin side. Similarly, the otherround needle 42 is pierced from the suture point B on the side of the base plate to the suture point B on the skin side (FIG. 3C). FIG. 3D shows a state in which thesuture thread 44 has passed through the sewing points A and B. FIG. Next, theround needle 42 is passed through the shallow skin from the outer skin from the stitching point B, and is pierced through the stitching point A (FIG. 3E). Thereafter, thesuture thread 44 is cut at an appropriate length indicated by a dotted line, and theround needles 40 and 42 are removed (FIG. 3F). Thebougie 46 is placed at the stitching point A, tied 3 to 4 times, and separated from theligature 48 leaving about 1 mm (FIG. 3G). Theligation part 48 is embedded in theincision part 32, and the treatment is finished (FIG. 3 (H)).

以上説明したように、上述した重瞼埋没法では、施術後、縫合糸４４、結紮部４８を皮膚下に埋入させるために、予めメス、剪刀で切開部３２を形成しなければならない。すなわち、縫合前に、メス等による切開という操作が必要となり、重瞼埋没法の施術作業が繁雑となるという問題がある。  As described above, in the above-described heavy cage embedding method, theincision portion 32 must be formed in advance with a scalpel and a scissors in order to embed thesuture 44 and theligation portion 48 under the skin after the operation. That is, there is a problem that an operation of incision with a scalpel or the like is required before suturing, and the operation work of the heavy burial method is complicated.

また、上述した丸針の狭持部４０ａ，４２ａの厚さに対する幅の偏平比は、一般的に１：１．８〜２．０となっている。従って、刺通時にこの偏平な挟持部で切開部３２に相当する大きさに組織を押し広げることはできない。  Moreover, the flatness ratio of the width with respect to the thickness of thepinching portions 40a and 42a of the round needle is generally 1: 1.8 to 2.0. Therefore, the tissue cannot be pushed out to a size corresponding to theincision portion 32 with the flat clamping portion at the time of piercing.

そこで、本発明は、上記課題を解決するためになされたもので、メス等による切開を必要とせずに、縫合糸、縫合糸の結紮部の埋入を可能な針付縫合糸を提供することを目的とする。  Accordingly, the present invention has been made to solve the above-described problems, and provides a suture thread with a needle that can embed a suture thread and a ligation portion of a suture thread without requiring an incision with a scalpel or the like. With the goal.

本発明の針付縫合糸は、縫合糸の一端又は両端に丸針が固定された針付縫合糸であって、少なくとも１つの丸針の挟持部の厚みと幅の最大偏平比が１：３．５〜４．０であることを特徴とする。
また、本発明の針付縫合針は、重瞼を形成するための重瞼埋没法に使用され、縫合糸の一端又は両端に丸針が固定された針付縫合糸であって、少なくとも１つの丸針の直径は、０．３〜０．７ｍｍであり、丸針の基端部側を偏平にして形成された挟持部は、挟持部の厚みに対する幅の偏平比が徐々に大きくなり、その稜線は、刺通時に徐々に組織を押し広げられるようにテーパ形状に形成され、丸針の挟持部の厚みと幅の最大偏平比が、１：３．５〜４．０であり、最大偏平比を有する挟持部の幅により押し広げられた刺通穴の幅が、縫合糸の結紮部を埋入させるための幅を有することを特徴とする。
本発明の針は、基端部に縫合糸が固定される針であって、針の挟持部の厚みと幅の最大偏平比が１：３．５〜４．０であることを特徴とする。
また、本発明の針は、重瞼を形成するための重瞼埋没法に使用され、基端部に縫合糸が固定される針であって、少なくとも１つの針の直径は、０．３〜０．７ｍｍであり、針の基端部側を偏平にして形成された挟持部は、挟持部の厚みに対する幅の偏平比が徐々に大きくなり、その稜線は、刺通時に徐々に組織を押し広げられるようにテーパ形状に形成され、針の挟持部の厚みと幅の最大偏平比が、１：３．５〜４．０であり、最大偏平比を有する挟持部の幅により押し広げられた刺通穴の幅が、縫合糸の結紮部を埋入させるための幅を有することを特徴とする。
The suture with a needle according to the present invention is a suture with a needle in which a round needle is fixed to one end or both ends of the suture, and the maximum flatness ratio of the thickness and width of the holding portion of at least one round needle is 1: 3. .5 to 4.0.
The suture needle with a needle according to the present invention is a suture with a needle that is used in a method of burying a chisel to form a chisel, and has a round needle fixed to one or both ends of the suture. The diameter of the round needle is 0.3 to 0.7 mm, and the clamping portion formed by flattening the proximal end side of the round needle gradually increases the flatness ratio of the width with respect to the thickness of the clamping portion. The ridge line is formed in a taper shape so that the tissue can be gradually expanded at the time of puncture, and the maximum flatness ratio of the thickness and width of the pinching portion of the round needle is 1: 3.5 to 4.0. The width of the piercing hole expanded by the width of the holding portion having a ratio has a width for embedding the ligation portion of the suture thread.
The needle of the present invention is a needle in which a suture is fixed to a proximal end portion, and has a maximum flatness ratio of the thickness and width of a holding portion of the needle of 1: 3.5 to 4.0. .
Further, the needle of the present invention is a needle used in a heavy padding method for forming a heavy pad, and a suture is fixed to a proximal end part, and the diameter of at least one needle is 0.3 to The pinching portion formed by flattening the proximal end side of the needle is 0.7 mm, and the flattening ratio of the width with respect to the thickness of the pinching portion gradually increases, and the ridge line gradually pushes the tissue during piercing. It is formed in a taper shape so as to be spread, and the maximum flatness ratio of the thickness and width of the pinching portion of the needle is 1: 3.5 to 4.0, and is pushed and widened by the width of the pinching portion having the maximum flatness ratio The width of the piercing hole is characterized by having a width for embedding the ligation portion of the suture thread.

本発明によれば、少なくとも以下の１つの効果を奏する。  The present invention has at least one of the following effects.

本発明によれば、丸針の挟持部を偏平にして、刺通時に組織を押し広げることができる。従って、縫合糸の結紮部を皮膚下に埋入させるために縫合点を予めメス、剪刀で切開する必要がない。  According to the present invention, it is possible to flatten the holding part of the round needle and to spread the tissue during piercing. Therefore, it is not necessary to incise the suturing point with a scalpel or scissors in advance in order to embed the suture ligature under the skin.

また、本発明によれば、縫合点をメス等で切開する必要がないので、組織損傷を少なくして、施術後の治癒を短縮できる。更に、本発明によれば、施術の単純化、施術時間を短縮することができる。  Further, according to the present invention, since it is not necessary to cut the suture point with a scalpel or the like, tissue damage can be reduced and healing after treatment can be shortened. Furthermore, according to the present invention, the treatment can be simplified and the treatment time can be shortened.

上述した効果により、患者の施術中、施術後の負担を軽減することができる。  Due to the effects described above, it is possible to reduce the burden after the operation during the operation of the patient.

以下、本発明の好適な実施の形態（以下、実施形態という）について、図面を参照し説明する。  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments (hereinafter referred to as embodiments) of the invention will be described with reference to the drawings.

本実施形態においては、縫合糸の両端に丸針が固定された両端針付縫合糸について説明する。図１は、本実施形態の両端針付縫合糸の全体構成を示す図である。  In the present embodiment, a double-ended needle-attached suture in which round needles are fixed to both ends of the suture will be described. FIG. 1 is a diagram illustrating the overall configuration of a suture with double-ended needles according to the present embodiment.

図１に示すように、本実施形態の両端針付縫合糸１は、縫合糸１０と、縫合糸１０の両端に固定された丸針１２、１４と、から構成されている。  As shown in FIG. 1, thesuture thread 1 with double-ended needles of the present embodiment includes asuture thread 10 andround needles 12 and 14 fixed to both ends of thesuture thread 10.

縫合糸１０は、例えば、ナイロンからなり、長さ約２５ｃｍ〜４０ｃｍ程度である。例えば、縫合糸１０の先端が丸針１２、１４の基端部の加締穴に挿入され、加締処理され、縫合糸１０の両端に丸針１２、１４が固定されている。  Thesuture thread 10 is made of nylon, for example, and has a length of about 25 cm to 40 cm. For example, the distal end of thesuture thread 10 is inserted into a caulking hole at the base end portion of theround needles 12 and 14 and subjected to caulking processing, and theround needles 12 and 14 are fixed to both ends of thesuture thread 10.

丸針１２、１４は、例えば、ステンレスからなり、長さ約１５ｍｍ〜２５ｍｍで、組織の損傷を少なくするために断面円形形状で形成され、直径φ０．３〜０．７ｍｍである。なお、本発明の丸針には、丸針の先端部を平面に成形した丸針（先端角錐形状）、例えば丸針の先端部を軸中心に１２０°毎に三平面にカットした断面三角形状（先端三角錐形状）の丸針も含まれる。皮膚組織が硬い場合には、このような加工をした丸針を用いるのがよい。  Theround needles 12 and 14 are made of, for example, stainless steel, have a length of about 15 to 25 mm, are formed in a circular cross section to reduce tissue damage, and have a diameter of 0.3 to 0.7 mm. In addition, the round needle of the present invention includes a round needle (tip pyramid shape) in which the tip portion of the round needle is formed into a flat surface, for example, a triangular shape in which the tip portion of the round needle is cut into three planes every 120 ° about the axis center A round needle with a (triangular pyramid shape) is also included. When the skin tissue is hard, it is better to use a round needle processed in this way.

また、丸針１２、１４は、施術作業に適するように湾曲形状に成形されている。例えば、背景技術で説明したように、重瞼埋没法の図３（Ｅ）の縫合点Ｂから縫合点Ａの工程で、湾曲が大きいと、皮膚下の眼輪部や挙筋腱膜の組織を貫ぬいてしまう可能性があり、湾曲が小さいと、皮膚を通過させた丸針を縫合点Ａより遠いポイントに突き出してしまう可能性がある。従って、縫合点Ａ，Ｂ間の距離によって、丸針１２、１４の長さや湾曲形状が選択される。なお、丸針１２、１４の湾曲は、均一ではなく、針の基端部より先端部にかけて徐々に湾曲が小さくなる。先端部の湾曲は、好適にはＲ３／８〜Ｒ１／２が好ましい。この形状によれば、瞼板側の縫合点Ａ、Ｂから皮膚側の縫合点Ａ、Ｂの刺通がし易いという利点がある。  Further, theround needles 12 and 14 are formed in a curved shape so as to be suitable for a surgical operation. For example, as described in the background art, when the curvature is large in the process from the stitching point B to the stitching point A in FIG. If the curvature is small, the round needle that has passed through the skin may protrude to a point farther from the stitching point A. Accordingly, the length and the curved shape of theround needles 12 and 14 are selected depending on the distance between the stitch points A and B. It should be noted that theround needles 12 and 14 are not evenly curved, and gradually become smaller from the proximal end portion to the distal end portion of the needle. The curvature of the tip is preferably R3 / 8 to R1 / 2. According to this shape, there is an advantage that the suture points A and B on the skin side can be easily pierced from the suture points A and B on the side of the base plate.

本実施形態において特徴的な点は、両端針付縫合糸の少なくとも一方の丸針の一部を偏平にしており、好適には、持針器により挟持される挟持部の厚みに対する幅の最大偏平比を１：３．５〜４．０とした点である。これにより、丸針の刺通時に、組織を押し広げることができ、施術後、縫合糸や結紮部を埋没させることができる。  A characteristic point in this embodiment is that a part of at least one round needle of the suture with a double-ended needle is flattened, and preferably the maximum flatness of the width with respect to the thickness of the pinching portion held by the needle holder The ratio is 1: 3.5 to 4.0. Thereby, at the time of puncture of a round needle, a tissue can be spread and a suture thread and a ligation part can be buried after a treatment.

図２は、丸針１２の拡大図であって、図２（Ａ）は平面図、図２（Ｂ）は正面図、図２（Ｃ）は、図２（Ａ）のＡ−Ａ線断面図である。  2A and 2B are enlarged views of theround needle 12. FIG. 2A is a plan view, FIG. 2B is a front view, and FIG. 2C is a cross-sectional view taken along line AA in FIG. FIG.

図２に示すように、丸針１２の基端側に挟持部１２ｂが形成されている。本実施形態においては、挟持部１２ｂは、断面偏平形状に形成されており、組織を切り裂かないように挟持部１２ｂの稜線１２ｃには、切刃が形成されていない。また、図２（Ｂ）に示すように、この挟持部１２ｂの稜線１２ｃは、刺通時に徐々に組織を押し広げる様に緩やかなテーパを形成し、厚みｔに対する幅ｗの偏平比が徐々に大きくなるように構成されている。最大偏平比はテーパ形状の終わりの基端側に形成されている。この最大偏平比は、刺通時に屈折しない程度で、結紮部を埋入させるために組織を押し広げられる程度にすることが好ましい。本実施形態においては、厚みｔに対する幅ｗの最大偏平比は１：３．５〜４．０の範囲である。具体的には、丸針１２の直径φ０．５５ｍｍの場合には、厚みｔは０．２５〜０．３５ｍｍ、幅ｗは０．９ｍｍ〜１．０ｍｍである。これにより、丸針１２の刺通時に組織を押し広げることができ、すなわち刺通穴を拡張することができる。なお、本実施形態においては、偏平の幅広面は湾曲半径に直交する方向に形成されている。これにより、施術時の持針器３６による挟持が容易になり、作業性を向上させることができる。  As shown in FIG. 2, a clampingportion 12 b is formed on the proximal end side of theround needle 12. In this embodiment, the clampingpart 12b is formed in the cross-sectional flat shape, and the cutting edge is not formed in theridgeline 12c of the clampingpart 12b so that a structure | tissue may not be cut. Further, as shown in FIG. 2B, theridge line 12c of the sandwichingportion 12b forms a gentle taper so as to gradually expand the tissue during piercing, and the flatness ratio of the width w to the thickness t gradually increases. It is configured to be large. The maximum flatness ratio is formed on the proximal end side at the end of the tapered shape. This maximum flatness ratio is preferably set such that it does not refract at the time of piercing and can expand the tissue to embed the ligature. In the present embodiment, the maximum flatness ratio of the width w with respect to the thickness t is in the range of 1: 3.5 to 4.0. Specifically, when the diameter of theround needle 12 is 0.55 mm, the thickness t is 0.25 to 0.35 mm, and the width w is 0.9 mm to 1.0 mm. Thereby, the tissue can be expanded when theround needle 12 is pierced, that is, the piercing hole can be expanded. In the present embodiment, the flat wide surface is formed in a direction perpendicular to the radius of curvature. Thereby, clamping by theneedle holder 36 at the time of a treatment becomes easy, and workability | operativity can be improved.

次に、本実施形態の両端針付縫合糸１を用いた重瞼埋没法の施術について簡単に説明する。  Next, the operation of the double burial method using thesuture thread 1 with both ends of the present embodiment will be briefly described.

両端針付縫合糸１は、背景技術で説明した重瞼埋没法の施術に用いることができる。特徴的な点は、本実施形態の両端針付縫合糸１を用いる場合には、縫合点Ａ，Ｂのマーキング後に縫合点Ａをメスや剪刀により切開する必要がない。すなわち、縫合点Ａ，Ｂをマーキングした後、両端針付縫合糸１の丸針１２を瞼板側の縫合点Ａから皮膚側の縫合点Ａに刺通する。丸針１２の挟持部１２ｂは、厚みｔに対する幅ｗの最大偏平比が１：３．５〜４．０になるように構成されているので、刺通時に組織を押し広げることができる。これにより、施術後、縫合糸１０、縫合糸１０の結紮部を一旦押し広げられた組織に容易に埋入することができる。なお、重瞼埋没法の他の刺通工程は、従来同様に行うことができる。  The double-ended needle-attachedsuture thread 1 can be used for the operation of the heavy burial method described in the background art. A characteristic point is that, when thesuture thread 1 with double-ended needles of the present embodiment is used, it is not necessary to incise the suture point A with a scalpel or a scissors after marking the suture points A and B. That is, after marking the suture points A and B, theround needle 12 of thesuture thread 1 with double-ended needles is pierced from the suture point A on the base plate side to the suture point A on the skin side. Since the pinchingportion 12b of theround needle 12 is configured such that the maximum flatness ratio of the width w to the thickness t is 1: 3.5 to 4.0, the tissue can be expanded during piercing. Thereby, after the treatment, thesuture thread 10 and the ligated portion of thesuture thread 10 can be easily embedded in the tissue once pushed and spread. In addition, the other piercing process of the heavy iron burying method can be performed similarly to the past.

なお、本明細書で説明した重瞼埋没法の施術は一例であって、縫合により重瞼を形成する重瞼埋没法の種々のバリエーションにおいても本実施形態の両端針付縫合糸１を好適に適用することができる。  Note that the operation of the heavy burial embedding method described in this specification is an example, and the suture with a double-ended needle of this embodiment is suitably used in various variations of the heavy burial embedding method in which the heavy burial is formed by suturing. Can be applied.

また、本実施形態においては、両端針付縫合糸１の一方の丸針の挟持部を所定の最大偏平比を有するように構成したが、両方の丸針を同一の形状にしても良い。  In the present embodiment, the holding portion of one round needle of the double-ended needle-attachedsuture thread 1 is configured to have a predetermined maximum flatness ratio, but both the round needles may have the same shape.

更に、縫合糸の一端に丸針が固定された片針付縫合糸の丸針の挟持部を所定の最大偏平比を有するように構成しても好適である。この片針付縫合糸も背景技術で説明した重瞼埋没法に用いることができる。この場合において、図３（Ｂ）、（Ｃ）に相当する工程で、初期刺通時に皮膚側の縫合点Ａから瞼板側の縫合点Ａに刺通し、その後、瞼板側の縫合点Ｂから皮膚側の縫合点Ｂに順次刺通すれば良い。  Furthermore, it is also preferable that the holding part of the round needle of the single-needle suture thread having a round needle fixed to one end of the suture thread has a predetermined maximum flatness ratio. This single needle-attached suture can also be used in the heavy padding method described in the background art. In this case, in the step corresponding to FIGS. 3B and 3C, at the time of initial puncture, the suture point A on the skin side is pierced from the suture point A on the mortar plate side, and then the suture point B on the mortar plate side. It suffices to sequentially pierce the suture point B on the skin side.

実施形態の両端針付縫合糸の全体構成を示す図である。It is a figure which shows the whole structure of the suture thread with both ends needle | hook of embodiment.丸針１２の拡大図であって、図２（Ａ）は平面図、図２（Ｂ）は正面図、図２（Ｃ）は、図２（Ａ）のＡ−Ａ線断面図である。2A is an enlarged view of theround needle 12, FIG. 2A is a plan view, FIG. 2B is a front view, and FIG. 2C is a cross-sectional view taken along line AA of FIG.従来の重瞼埋没法の工程例を示す図である。It is a figure which shows the process example of the conventional heavy burial method.

符号の説明Explanation of symbols

１ 両端針付縫合糸、１０ 縫合糸、１２，１４ 丸針、１２ｂ 挟持部、１２ｃ 稜線、３０ メス、３２ 切開部、３４ 角膜保護板、３６ 持針器、３８ 両端針付縫合糸、４０，４２ 丸針、４４ 縫合糸、４６ ブジー、４８ 結紮部。  DESCRIPTION OFSYMBOLS 1 Suture with a double-ended needle, 10 Suture, 12, 14 Round needle, 12b Clamping part, 12c Ridge line, 30 knife, 32 Incision part, 34 Cornea protective plate, 36 Needle holder, 38 Suture with double-ended needle, 40, 42 round needles, 44 sutures, 46 bougie, 48 ligatures.

Claims (2)

Translated fromJapanese

重瞼を形成するための重瞼埋没法に使用され、縫合糸の一端又は両端に丸針が固定された針付縫合糸であって、
少なくとも１つの丸針の直径は、０．３〜０．７ｍｍであり、
前記丸針の基端部側を偏平にして形成された挟持部は、挟持部の厚みに対する幅の偏平比が徐々に大きくなり、その稜線は、刺通時に徐々に組織を押し広げられるようにテーパ形状に形成され、
前記丸針の挟持部の厚みと幅の最大偏平比が、１：３．５〜４．０であり、
前記最大偏平比を有する挟持部の幅により押し広げられた刺通穴の幅が、縫合糸の結紮部を埋入させるための幅を有することを特徴とする針付縫合糸。A suture with a needle that isused in the method of burying a chisel to form a chisel, with a round needle fixed to one or both ends of the suture,
The diameter of the at least one round needle is 0.3-0.7 mm;
The clamping part formed with the base end side of the round needle flattened has a flattening ratio of the width with respect to the thickness of the clamping part gradually so that the ridge line can gradually spread the tissue during piercing. Formed in a tapered shape,
Maximum flattening ratio of the thickness and width of the clamping portionof the roundneedle, 1: 3.5 to 4.0 deris,
A suture with a needle characterized in thatthe width of the piercing hole expanded by the width of the holding portion having the maximum flatness ratio has a width for embedding the ligation portion of the suture.重瞼を形成するための重瞼埋没法に使用され、基端部に縫合糸が固定される針であって、
少なくとも１つの針の直径は、０．３〜０．７ｍｍであり、
前記針の基端部側を偏平にして形成された挟持部は、挟持部の厚みに対する幅の偏平比が徐々に大きくなり、その稜線は、刺通時に徐々に組織を押し広げられるようにテーパ形状に形成され、
前記針の挟持部の厚みと幅の最大偏平比が、１：３．５〜４．０であり、
前記最大偏平比を有する挟持部の幅により押し広げられた刺通穴の幅が、縫合糸の結紮部を埋入させるための幅を有することを特徴とする針。A needle that isused in the method of burying a chisel to form a chisel and having a suture fixed to the proximal end,
The diameter of the at least one needle is 0.3-0.7 mm;
The pinching portion formed with the proximal end side of the needle flattened has a flattening ratio of the width with respect to the thickness of the pinching portion, and its ridge line is tapered so that the tissue is gradually spread during piercing. Formed into a shape,
Maximum flattening ratio of the thickness and width of the clamping portionof theneedle, 1: 3.5 to 4.0 deris,
The needle characterized in thatthe width of the piercing hole expanded by the width of the holding portion having the maximum flatness ratio has a width for embedding the ligation portion of the suture thread .

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