JP4173771B2 - Surgical fabric - Google Patents

Description

【００４３】
表１及び図６〜９から分かる様に、造影糸が１本織り込まれた試料No.７〜９に比べて、２本の造影糸が隣接して織り込まれた試料No.１〜６は、いずれも最大荷重が大きく、引抜抵抗性に非常に優れる。特に造影糸２本ともに引抜力を作用させたものにあっては（試料No.１〜３）いずれも造影糸の切断に至り、このことから、ピンセット等で造影糸２本を掴んで引き出す場合には、造影糸が引き抜けるより前に造影糸が切断され、残りの造影糸が手術用ガーゼに残ることが分かる。また試料No.１〜６の引抜抵抗最大荷重の値から分かるように（試料No.１〜３の平均は１８．４３４N、試料No.４〜６の平均は７．２６５N）、ガーゼ自身が破損しそうになる（或いは破損する）程の大きな力を加えないと造影糸が引き抜けないことが分かる。更に試料No.１０〜１２はガーゼ糸の引抜抵抗を測定したものであるが、この試料No.１０〜１２の結果と試料No.１〜６の結果を比較しても分かる様に、試料No.１〜６は造影糸の引抜抵抗が格段に優れる。
【００４４】
尚試料No.１〜１２はいずれも経糸側の切断端部の近傍に高織密度部分を有するが、長手方向の一方端側では上記ガーゼ糸切除によって該高織密度部分が取り除かれ、長手方向の他方端側においてもチャック部７１により掴まれている部分であるから、該高織密度部分は本試験において造影糸或いはガーゼ糸の引抜抵抗荷重について何ら関与しない。従って実施形態２の手術用ガーゼ４０はこの高織密度部分５２によって実際にはより引抜抵抗が高いものとなる。
【００４５】
【発明の効果】
以上の様に本発明の手術用織物においては、造影糸が非常に抜け難いから、手術用織物より造影糸が抜け落ちることは殆どなく、従って造影糸が抜けた為にＸ線造影で織物（ガーゼ）が映し出されないという事態を防ぐことができ、よってより安全性が向上する。
【図面の簡単な説明】
【図１】本発明の実施形態１に係る手術用ガーゼ（手術用織物）を示す図。
【図２】実施形態１の手術用ガーゼ中の造影糸を表す側面図。
【図３】本発明の実施形態２に係る手術用ガーゼ（手術用織物）を示す正面図。
【図４】引抜強度試験の方法を説明する為の図（その１）。
【図５】引抜強度試験の方法を説明する為の図（その２）。
【図６】試料No.１〜３の引抜強度試験の測定結果を表すチャート。
【図７】試料No.４〜６の引抜強度試験の測定結果を表すチャート。
【図８】試料No.７〜９の引抜強度試験の測定結果を表すチャート。
【図９】試料No.１０〜１２の引抜強度試験の測定結果を表すチャート。
【図１０】従来例▲１▼の手術用ガーゼを示す正面図。
【図１１】従来例▲２▼の内視鏡手術用ガーゼを示す正面図。
【図１２】（ａ）は図１１に示す内視鏡手術用ガーゼにおける熱融着部付近を示す拡大図、（ｂ）は（ａ）に示すＢ−Ｂ線断面図。
【図１３】従来例▲３▼の手術用ガーゼの拡大正面図。
【符号の説明】
３０，４０ 手術用ガーゼ
３１ 経方向のガーゼ糸
３２ 緯方向のガーゼ糸
３３ ガーゼ本体
３４，３５ 造影糸
５２ 高織密度部分
５４ 織布耳部分
５５ 経糸側の切断端部
７１ チャック部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a surgical fabric provided with a contrasting thread. The gauze for operation will be described below as an example, but the present invention is not limited to a plain weave cotton fabric such as gauze, and can be applied to fabrics used in various operations.
[0002]
[Prior art]
During surgery, a number of gauze is used for the purpose of preventing dryness or wiping bleeding. If these gauze remain in the body, there is a risk of various physical problems such as pain, discomfort, or slight fever. Therefore, it is necessary to remove all gauze from the body at the end of the operation.
[0003]
Therefore, in surgery, a gauze woven with contrasting yarn is generally used instead of one warp constituting gauze, and X-ray contrast (X-ray imaging) was performed before closing the surgical site at the end of the surgery. A method is used in which the presence or absence of gauze is confirmed using a contrasting thread as a clue, and if it remains, it is removed.
[0004]
As the contrast yarn, a multifilament in which 55 to 65% by mass of barium sulfate is kneaded in polypropylene resin, or a filamentous body of vinyl chloride resin or silicone resin in which 50 to 80% by mass of barium sulfate is kneaded is used. Since these have poor water absorption and do not stain blood, even if the gauze body is stained with blood, the contrast yarn is easily visible with the naked eye.
[0005]
By the way, because of the advantage of being easily visible, when removing the gauze from the body, an operation is often performed in which the contrast thread is grasped with tweezers and taken out. The force from the normal extraction operation rarely pulls out the contrast thread from the gauze body, but for example when the gauze is inserted deeply and pinched by an organ, it is necessary to pull out the contrast thread. When grasped and pulled out, there is a concern that the contrast thread is pulled out of the gauze body and leaves the gauze body in the body. If the contrast thread falls out in this way, the gauze body will not be projected even if X-ray contrast is performed, and it will be difficult to find out.
[0006]
Therefore, as a surgical gauze that makes it difficult to remove the contrast yarn, for example, as shown in FIG. 10 [a front view showing the surgical gauze of the conventional example (1)], the weave density is increased in the vicinity of the cut end portion 55 on the warp side. A surgical gauze 50 has been proposed (this portion may be hereinafter referred to as a high weave density portion 52) (conventional example {circle around (1)}) (see, for example, page 2 of Patent Document 1 and FIG. 7). In the conventional example (1), the contrast yarn 51 is used for one of the warps constituting the gauze, and the contrast yarn 51 is tightened by the high weave density portion 52, so that it is difficult to come off. In the figure, 53 is a gauze body, and 54 is a woven ear portion where the weft is U-turned.
[0007]
In addition, as a strip-shaped endoscopic surgical gauze which is intended to prevent the removal of contrast threads, FIG. 11 [front view showing endoscopic surgical gauze 20 of the conventional example (2)], FIG. 12 [(a) Fig. 11 is an enlarged view showing the vicinity of the heat fusion part 11 in the endoscopic surgical gauze 20 shown in Fig. 11, and (b) is a vicinity of the warp cutting part as shown in the sectional view taken along the line BB of Fig. 11 (a). A part (conventional example {circle around (2)}) in which the contrast yarn 16 is heat-sealed to the cotton yarn 12 constituting the gauze body has been proposed (conventional example {circle around (2)}) (for example, Patent Document 1 (particularly the first) See FIGS. 2 and 3). In the conventional example {circle around (2)}, the contrast yarn 16 is firmly fused to the cotton yarn 12 of the gauze body in the heat-sealing portion 11, so that it is very difficult to come off.
[0008]
In addition, as shown in FIG. 13 [enlarged front view of the surgical gauze of the conventional example (3)], one of the warps 62 (weaving thread 67) of the gauze body and the contrast thread 66 are woven. The surgical gauze 60 has been proposed (conventional example (3)) (see, for example, Patent Document 2), and this is in a state in which the weaving thread 67 becomes entangled with the contrasting thread 66, so that the pulling resistance increases and is difficult to come off. .
[0009]
[Patent Document 1]
JP 2002-52038 A [Patent Document 2]
Japanese Patent Laid-Open No. 2002-143212
[Problems to be solved by the invention]
As described above, various surgical gauze (surgical fabric) that makes it difficult to remove the contrasting thread has been proposed, but the present invention aims to provide a surgical fabric that makes it extremely difficult to remove the contrasting thread by different methods. .
[0011]
[Means for Solving the Problems]
Surgical fabric according to the present invention is a surgical fabric with contrast yarn, the thickness of the contrast yarn, is 3 times or more relative to the thickness of the yarn that constitutes the surgical fabric body, the opaque filaments is characterized in that the woven two or more adjacent.
[0012]
As described above, it has been confirmed that two or more contrast yarns woven adjacently have a very high pulling resistance as in an experiment described later. The reason why the pull-out resistance becomes high cannot be said to be certain, but is considered to be due to the following reasons (1) to (3). A surgical gauze will be described as an example of the surgical fabric.
[0013]
(1): Generally, the thickness of the contrast yarn is thicker than that of the gauze yarn constituting the gauze body. Therefore, even if one contrast yarn is woven as in the prior art, the gauze yarn that intersects with the contrast yarn (hereinafter sometimes referred to as a cross gauze yarn) is relatively at the intersection with the contrast yarn. In the present invention, since two or more contrast yarns are woven adjacent to each other as described above, the cross gauze yarn is a single contrast yarn in this adjacent contrast yarn portion. It will be inserted by rising and falling at a much steeper angle than. For this reason, the tightness of the cross gauze yarn to the contrast yarn becomes very strong, and as a result, the contrast yarn is difficult to come off.
[0014]
(2): Contrast yarn is further deformed by tightening the cross gauze thread, resulting in a shape with irregularities in the insertion direction. In order to pull it out, the cross gauze thread must get over the deformed convex part, and the pulling resistance is reduced. high.
[0015]
(3): For example, when two or more of the warps are woven using a gauze weaving machine instead of the contrast yarn, the contrast yarn is thicker than the other gauze body parts because the contrast yarn is thick. And the gap between the adjacent gauze yarns are reduced, so that the tightening force is increased and the frictional resistance is also increased, making it difficult to come off.
[0016]
If two or more contrast yarns are inserted apart from each other without being adjacent to each other, the improvement in the tightening force of the cross gauze yarn cannot be expected. Therefore, the improvement in the pulling resistance as described in (1) to (3) above can be expected. I can't hope.
[0017]
The thickness of the thread (gauze thread) constituting the surgical fabric body such as the gauze body is generally about 0.1 to 0.2 mm in diameter, whereas the thickness of the contrast thread is generally 0.5 to 0 diameter. About 9mm. As described above, since the thickness is different, it is considered that it becomes difficult to remove as described in (1) to (3) above. In order to effectively demonstrate the actions (1) to (3) above, the thickness of the contrast thread is preferably 3 times or more the thickness of the thread (gauze thread) constituting the surgical fabric body (gauze body), More preferably, it is 5 times or more.
[0018]
Contrast threads include yarns made by kneading X-ray non-transparent materials such as barium sulfate, silver sulfate, titanium oxide, and silicone into a resin, or non-X-rays such as silver between two resin films. For example, a multifilament in which barium sulfate is kneaded into a polypropylene resin as described above, or vinyl chloride in which barium sulfate is kneaded. Examples thereof include a thread of a resin or a silicone resin.
[0019]
Further, when the contrast yarn is a multifilament, it is easily deformed in the thickness direction as compared with a monofilament, and therefore, it is slightly affected by the cross yarn (the yarn of the surgical fabric body that crosses the contrast yarn like the cross gauze yarn). The multifilament contrast yarn is deformed only by the action of the tightening force, and it is difficult to come off as described above.
[0020]
As the surgical fabric of the present invention, it is most preferable that a portion where two or more contrast yarns are adjacent extends over the entire length of the inserted contrast yarn. However, if it is adjacent to a certain length, it acts as described in (1) to (3) above at the adjacent portion, and it is difficult for the contrast thread to come off.
[0021]
The number of contrast yarns may be two or more, that is, three or four, but the contrast yarns have poor water absorption and may cause the surgical fabric (gauze) to have a hard texture. It is not recommended to insert too much. From such a viewpoint, 2 to 3 is preferable, and 2 is most preferable.
[0022]
In addition to the effect that the contrast yarn is difficult to be removed as described above, the present invention also has an effect that the visibility by X-ray contrast is excellent. In other words, in the case where two or more contrast threads are adjacent to each other, when X-ray contrast is performed, the contrast threads appear to be thick at a position where two (or three or more) contrast threads are parallel to the contrast direction. In addition, in a place where two (or three or more) contrast threads overlap, the density of the X-ray non-transparent material (barium sulfate, etc.) (amount on the X-ray transmission lines) is apparently increased, so that the contrast threads are It looks brighter and the visibility is improved anyway. Note that even in a gauze in which a plurality of contrast threads are separated (not adjacent), the gauze is often folded into an indeterminate shape (being crumbling), so that contrast is applied in the contrast direction. Although there are places where the yarns overlap, in the case of the adjacent ones as in the present invention, not only the case where they overlap by folding, but also the case where the contrast is formed from the side of the two contrasting yarns arranged in parallel Therefore, the probability that the contrast threads overlap will be very high, so that the visibility is excellent.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the surgical fabric according to the present invention will be specifically described with reference to the drawings showing examples. However, the present invention is not limited to the illustrated examples, and can be adapted to the purpose described above and below. The present invention can be carried out with appropriate modifications, all of which are included in the technical scope of the present invention.
[0024]
<Embodiment 1>
(A) of FIG. 1 is the elements on larger scale of the surgical gauze (surgical textile) which concerns on Embodiment 1 of this invention, (b) is the sectional view on the AA line shown to (a).
[0025]
In this surgical gauze 30, cotton gauze yarns 31 and 32 (15 tex (cotton yarn 40th)) are arranged on warps and wefts to constitute a gauze body 33 (in the figure, 31 is a gauze yarn in the warp direction, Two contrast yarns 34 and 35 (3800 dtex) are woven in the warp direction adjacent to the gauze body 33, and the contrast yarns 34 and 35 are warp direction gauze yarns. A plain weave structure is formed by 31 and the weft gauze yarn 32. The size is 30 cm × 30 cm.
[0026]
The contrast yarns 34 and 35 are multifilaments obtained by kneading 55 to 65% by mass of barium sulfate with polypropylene resin, spinning filaments, bundling 40 filaments, and winding polyester filaments. When the cross-sectional diameters of the contrast yarns 34 and 35 and the gauze yarns 31 and 32 of Embodiment 1 were measured, the contrast yarns 34 and 35 had a diameter of 0.53 mm, and the gauze yarns 31 and 32 had a diameter of 0.15 mm. The contrast threads 34 and 35 were about 3.5 times as thick as the gauze threads 31 and 32.
[0027]
The surgical gauze 30 is manufactured by using a normal gauze loom and weaving using two contrast yarns 34 and 35 instead of two gauze warps. The surgical gauze 30 that has been woven is appropriately degreased, bleached, sterilized, etc., and conforms to the gauze prescribed in the Japanese Pharmacopoeia.
[0028]
For example, the above-mentioned conventional example (3) requires a special loom capable of knitting, but as described above, in this embodiment, it can be woven using a normal gauze loom, so that the conventional manufacturing equipment can be used as it is. Moreover, since it can be produced in the same manner as a normal gauze production process, the production process is not complicated. Therefore, the cost is not increased.
[0029]
The contrast yarns 34 and 35 of the surgical gauze 30 are thicker than the gauze yarns 31 and 32. The contrast yarns 34 and 35 and the warp gauze yarns 31a and 31b adjacent to the contrast yarns 34 and 35 have a narrow thread-thread interval. Since the frictional resistance is increased and the weft gauze yarn (cross gauze yarn) 32 rises and falls sharply in the contrast yarns 34 and 35, the weft gauze yarn A strong tightening force is generated at 32 and the contrast threads 34 and 35 are tightened strongly. Further, by this tightening, as shown in FIG. 2 [a side view showing the contrast thread 34 (or contrast thread 35) in the surgical gauze 30], the contrast threads 34 and 35 are deformed in an uneven shape. Factors such as an increase in frictional resistance, strong tightening, and uneven deformation are intertwined, and the contrast threads 34 and 35 are very difficult to come off. If the contrast thread is removed, there is a concern that the surgical gauze is not projected even if X-ray imaging is performed, and it is difficult to find the surgical gauze and remains in the body. Even if a pulling force is applied to the contrast threads 34 and 35, they cannot be easily removed, so the above-mentioned concerns are almost eliminated and the safety is further improved.
[0030]
In addition, since the two contrast threads 34 and 35 are lined up next to each other, when X-ray contrast is performed, the contrast threads appear to be thick and overlap when viewed from the direction where they appear to line in a plane ( In contrast imaging from the side end direction (the direction of arrow C in FIG. 1), it looks brighter and brighter than in the case of one, so it is easy to find. Even if one contrast thread is woven like a conventional surgical gauze, it is folded indefinitely in the body, so there are not a few overlapping portions of the contrast thread, and that part is bright and shining. However, in the case where the contrast yarns 34 and 35 are adjacent as in the first embodiment, not only are they folded and overlapped, but also the contrast from the side end direction (the direction of arrow C in FIG. 1). Even in such a case, the images appear to overlap each other, and the probability that the contrast yarns overlap in this way increases, so the visibility is further improved.
[0031]
<Embodiment 2>
FIG. 3 is a front view showing a surgical gauze (surgical fabric) 40 according to Embodiment 2 of the present invention. The same components as those in FIGS. 1 and 10 are denoted by the same reference numerals to avoid redundant description.
[0032]
The surgical gauze 40 according to the second embodiment is formed by forming a high weave density portion 52 having a high weave density in the vicinity of the cut end portion 55 on the warp side, and other configurations are the same as those of the first embodiment.
[0033]
In the surgical gauze 40, the tightening force by the high weave density portion 52 is further applied, and the contrast threads 34 and 35 are more difficult to come off. Therefore, it is possible to prevent a situation in which the surgical gauze 40 cannot be found because the contrast yarn has been removed. Similarly to the first embodiment, since the two contrast threads 34 and 35 are adjacent to each other in the surgical gauze 40, the probability that the contrast threads overlap and X-ray contrast is increased, and the overlapping portion is brightly shining. Excellent visibility.
[0034]
In the first and second embodiments, the diameter of the contrast thread is 0.53 mm. In general, the diameter of the contrast thread is 0.57 mm, 0.65 mm, and 0.85 mm. Even when these contrast yarns are used, they are sufficiently thick with respect to the gauze yarn (generally about 0.15 mm in diameter) and are very difficult to come off due to being strongly tightened by the cross gauze yarn.
[0035]
In the first and second embodiments, the surgical gauze 30 and 40 woven with two contrast threads are shown, but three or more woven gauze may be woven. However, if there are too many contrast threads, water absorption and flexibility may be impaired.
[0036]
In addition, in Embodiments 1 and 2 described above, the contrast yarns are woven as warps, but may be woven as wefts.
[0037]
In the first and second embodiments, the gauze body is composed of 40th cotton yarn, but is not limited to this, and other thickness cotton yarn (for example, 30th yarn) may be used. Other fibers such as rayon and cupra may be woven using yarns such as single or mixed or combined yarns.
[0038]
Further, in Embodiments 1 and 2 described above, a surgical gauze of 30 cm × 30 cm is shown. However, the gauze for compression hemostasis such as 1 cm × 15 cm is not limited thereto, and an endoscopic gauze such as 3 cm × 20 cm, The present invention can be applied to various woven fabrics used for surgery, such as a gauze for peeling that is 3 cm × 3 cm by folding the gauze.
[0039]
<Experiment>
With respect to the surgical gauze 40 (sample Nos. 1 to 6) similar to that of the second embodiment and the surgical gauze (sample Nos. 7 to 9) of the conventional example {circle around (1)}, the strength (withdrawal) strength test of the contrast thread was performed. went. Each of these sample Nos. 1 to 9 has a warp of 30 cm × weft of 30 cm, sample Nos. 1 to 6 have two contrast yarns adjacent to each other, and sample Nos. 7 to 9 have contrast yarns. Is woven in one warp direction. In addition, with respect to gauze only in which no contrast yarn is woven (warp 30 cm × weft 30 cm) (sample Nos. 10 to 12), a pulling (dropping) strength test was performed on one gauze yarn constituting the gauze. . In both cases, the gauze thread has a diameter of 0.15 mm, and the contrast thread has a diameter of 0.53 mm.
[0040]
As for the test method, for sample Nos. 1 to 9, the sample is cut to a width of 5 cm so that the contrast thread is in the center in the longitudinal direction (30 cm × 5 cm strip-shaped), and a part of one end 5 cm in the longitudinal direction In FIG. 5, only the gauze thread was excised to obtain only the contrast thread, and only the contrast thread was excised from the other end 5 cm in the longitudinal direction to obtain only the gauze thread. Regarding Samples Nos. 4 to 6, one of the two contrast yarns was cut off at a portion of one end 5 cm in the longitudinal direction. These excised portions were used as grip portions (FIG. 4: diagram for explaining the method of the pullout strength test (part 1)). For Sample Nos. 10 to 12, one gauze yarn in the warp direction was regarded as the contrast yarn, and one end 5 cm and the other end 5 cm in the longitudinal direction were cut out in the same manner as described above to form grips. In both cases, the grip interval is 25 cm.
[0041]
Using a fixed elongation type tensile tester (same as the tester used in JIS L 1906 5.3.1), the sample gripping part is gripped by the chuck part 71 of this tester so that the sample is not loose. The sample was pulled at a tensile rate of 20 cm / min (load cell rating: 50 N), and the pulling resistance load at that time was measured (FIG. 5: To explain the method of pulling strength test) (Part 2)). The results are shown in Table 1, and the measurement result charts are shown in FIGS. 6 to 9, the vertical axis represents the load of the pulling resistance, and the horizontal axis represents the elongation (the separation width of the chuck portion 71).
[0042]
[Table 1]

[0043]
As can be seen from Table 1 and FIGS. 6-9, sample Nos. 1-6, in which two contrast yarns are woven adjacent to each other, compared to sample Nos. 7-9, in which one contrast yarn is woven, In any case, the maximum load is large and the resistance to pulling out is very excellent. In particular, in the case where both of the two contrast threads are applied with the pulling force (Sample Nos. 1 to 3), the contrast thread is cut, and from this, when the two contrast threads are grasped and pulled out It can be seen that the contrast thread is cut before the contrast thread is pulled out, and the remaining contrast thread remains in the surgical gauze. Moreover, as can be seen from the value of the maximum pulling resistance of samples No. 1 to 6 (average of samples No. 1 to 3 is 18.434N, average of samples No. 4 to 6 is 7.265N), the gauze itself is damaged. It can be seen that the contrast thread cannot be pulled out unless a force large enough to cause (or break) is applied. Further, Sample Nos. 10 to 12 were measured by measuring the pulling resistance of the gauze yarn. As can be seen from the comparison between the results of Sample Nos. 10 to 12 and the results of Sample Nos. Nos. 1 to 6 have remarkably excellent resistance to drawing out the contrast yarn.
[0044]
Samples Nos. 1 to 12 all have a high weave density portion in the vicinity of the cut end portion on the warp side, but the high weave density portion is removed by cutting the gauze yarn on one end side in the longitudinal direction. Since the high weave density portion is also gripped by the chuck portion 71 on the other end side, the high-weave density portion is not involved in the drawing resistance load of the contrast yarn or the gauze yarn in this test. Therefore, the surgical gauze 40 of the second embodiment is actually more resistant to pulling out due to the high weave density portion 52.
[0045]
【The invention's effect】
As described above, in the surgical fabric of the present invention, since the contrast yarn is very difficult to be removed, the contrast yarn hardly falls out of the surgical fabric. ) Is not projected, and thus safety is further improved.
[Brief description of the drawings]
FIG. 1 is a diagram showing a surgical gauze (surgical fabric) according to Embodiment 1 of the present invention.
FIG. 2 is a side view showing a contrast thread in the surgical gauze according to the first embodiment.
FIG. 3 is a front view showing a surgical gauze (surgical fabric) according to Embodiment 2 of the present invention.
FIG. 4 is a diagram (No. 1) for explaining a method of a pull-out strength test.
FIG. 5 is a diagram for explaining a method of a pull-out strength test (No. 2).
FIG. 6 is a chart showing measurement results of a pull-out strength test for sample Nos. 1 to 3;
FIG. 7 is a chart showing measurement results of a pull-out strength test for sample Nos. 4-6.
FIG. 8 is a chart showing measurement results of a pullout strength test for sample Nos. 7 to 9;
FIG. 9 is a chart showing measurement results of a pullout strength test of sample Nos. 10-12.
FIG. 10 is a front view showing a surgical gauze according to the conventional example {circle around (1)}.
FIG. 11 is a front view showing an endoscopic surgical gauze according to the conventional example (2).
12A is an enlarged view showing the vicinity of a heat fusion part in the endoscopic surgical gauze shown in FIG. 11, and FIG. 12B is a sectional view taken along line BB shown in FIG.
FIG. 13 is an enlarged front view of the surgical gauze of the conventional example (3).
[Explanation of symbols]
30, 40 Surgical gauze 31 Warp gauze yarn 32 Weft gauze yarn 33 Gauze body 34, 35 Contrast yarn 52 High weave density portion 54 Woven cloth ear portion 55 Warp yarn side cut end portion 71 Chuck portion

Claims (2)

In surgical fabrics with contrast threads,
The thickness of the contrasting thread is at least 3 times the thickness of the thread constituting the surgical textile body,
Surgical fabric, characterized in that said opaque filament is woven two or more adjacent.   The surgical fabric according to claim 1, wherein the contrast yarn is a multifilament.

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