JP2004360138A - Fabric for surgery - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fabric for surgery containing a contrasting thread resistant to slip-off. <P>SOLUTION: The fabric is a surgery gauze 30 containing contrasting threads and having a part containing two contrasting threads 34, 35 woven into the gauze adjacent to each other. <P>COPYRIGHT: (C)2005,JPO&NCIPI

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]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a surgical fabric provided with a contrast thread. In the following, a gauze for surgery will be described as an example, but the present invention is not limited to a cotton fabric having a plain weave structure like a gauze, but can be applied to a fabric used for various operations.
[0002]
[Prior art]
At the time of a surgical operation, many gauze are used for the purpose of preventing dryness and wiping bleeding. If such gauze remains in the body, it may cause various physical disorders 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 operation, a gauze in which a contrast yarn is woven is generally used instead of one warp constituting the gauze, and X-ray imaging (radiography) is performed before closing the operation site at the end of the operation, and the image is displayed. A method has been adopted in which the presence or absence of gauze is checked by using a contrast yarn as a clue, and if there is remaining gauze, it is removed.
[0004]
As the contrast yarn, a multifilament in which 55 to 65% by mass of barium sulfate is kneaded in a polypropylene resin, or a filamentous material of a vinyl chloride resin or a silicone resin in which 50 to 80% by mass of barium sulfate is kneaded is exclusively used. Since these materials have poor water absorption and do not stain blood, they have an advantage that the contrast yarn is easily visually recognized even if the gauze body is stained with blood.
[0005]
By the way, due to such an advantage that it is easy to visually recognize, when removing the gauze from the body, an operation of grasping the contrast yarn with tweezers or the like and removing it is often performed. Although the contrast yarn hardly pulls out of the gauze main body with the force of the normal removal operation, it is necessary to strongly pull out the contrast yarn, for example, when the gauze is inserted deeply and caught between the organs, etc. If it is grasped and pulled out, the contrast yarn may fall out of the gauze main body, and there is a concern that the gauze main body remains in the body. If the contrast yarn comes off in this way, the gauze body will not be projected even when X-ray contrast is performed, and it will be difficult to find it.
[0006]
Therefore, as a surgical gauze that made it difficult for the contrast thread to come off, for example, as shown in FIG. 10 [a front view showing the surgical gauze of the conventional example (1)], the weaving density was increased near the cut end 55 on the warp side. A surgical gauze 50 has been proposed (hereinafter, this portion may be referred to as a high weave density portion 52) (conventional example (1)) (for example, see page 2 of Patent Document 1, FIG. 7). In the conventional example (1), the contrast yarn 51 is used as one of the warp yarns constituting the gauze. The contrast yarn 51 is fastened by the high-woven density portion 52 and thus hardly comes off. In the figure, 53 is a gauze main body, and 54 is a woven fabric ear portion where the weft turns U.
[0007]
Further, as a strip-shaped endoscope surgical gauze for preventing the removal of the contrast thread, FIG. 11 [a front view showing the endoscope surgical gauze 20 of the conventional example (2)] and FIG. 12 (a). Is an enlarged view showing the vicinity of the heat-sealed portion 11 of the gauze 20 for endoscopic surgery shown in FIG. 11, and (b) is a cross-sectional view taken along the line BB shown in FIG. In some parts, a yarn in which a contrast yarn 16 is thermally fused to a cotton yarn 12 constituting a gauze body (heat-fused portion 11) has been proposed (conventional example {circle around (2)}). See FIGS. 2 and 3)). In the conventional example (2), the contrast yarn 16 is firmly fused to the cotton yarn 12 of the gauze main body at the heat fusion portion 11, so that it is very difficult to come off.
[0008]
Furthermore, as shown in FIG. 13 [enlarged front view of the surgical gauze of the conventional example (3)], one of the warp yarns 62 (woven yarn 67) and the portion of the contrast yarn 66 of the gauze main body are woven. Has been proposed (conventional example {circle around (3)}) (for example, see Patent Literature 2). In this case, the weaving yarn 67 is entangled with the contrast yarn 66, so that the pull-out resistance is increased and it is difficult to pull out. .
[0009]
[Patent Document 1]
JP 2002-52038 A [Patent Document 2]
JP, 2002-143212, A
[Problems to be solved by the invention]
As described above, various surgical gauze (surgical fabrics) have been proposed in which the contrast yarn is hardly removed, but an object of the present invention is to provide a surgical fabric in which the contrast yarn is extremely hardly removed by a different method. .
[0011]
[Means for Solving the Problems]
The surgical fabric according to the present invention is a surgical fabric provided with a contrast yarn, wherein there is a portion where two or more of the contrast yarns are woven adjacent to each other.
[0012]
As described above, it has been confirmed that the two or more contrast yarns woven adjacent to each other have a very high pull-out resistance as in the experiment described later. Although the reason why the pull-out resistance becomes high cannot be said to be certain, it is considered to be roughly 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 the gauze yarn constituting the gauze body. Therefore, even if a single contrast yarn is woven as in the prior art, a gauze yarn that intersects with the contrast yarn (hereinafter sometimes referred to as a crossed gauze yarn) is relatively formed at the intersection with the contrast yarn. In the present invention, since two or more contrast yarns are woven adjacently as described above, the crossed gauze yarn in the adjacent contrast yarn portion is a single contrast yarn. It rises and falls at an extremely steep angle, and is inserted. For this reason, the tightening of the crossed gauze yarn to the contrast yarn becomes very strong, and as a result, the contrast yarn hardly comes off.
[0014]
(2): Further, the contrast yarn is deformed due to the tightening of the cross gauze yarn, and the cross gauze yarn has a shape having irregularities in the insertion direction. high.
[0015]
(3): For example, when two or more of the warp yarns are woven using a gauze weaving machine instead of a contrast yarn, the contrast yarns are thicker than other gauze body portions because the contrast yarn is thick. And the gap between adjacent gauze yarns are reduced, so that the tightening force is increased, the frictional resistance is increased, and it is difficult to remove.
[0016]
If two or more contrast yarns are inserted apart from each other without being adjacent to each other, an improvement in the tightening force of the crossed gauze yarn cannot be expected, so that the improvement in the pull-out resistance as described in the above (1) to (3) can be expected. I can't hope.
[0017]
The thickness of the thread (gauze thread) constituting the surgical textile 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 in diameter. It is about 0.9 mm. It is considered that the difference in thickness in this manner makes it difficult to come out as described in (1) to (3) above. In order to effectively exert the effects of the above (1) to (3), the thickness of the contrast yarn is preferably at least 3 times the thickness of the yarn (gauze yarn) constituting the surgical woven fabric main body (gauze main body), More preferably, it is 5 times or more.
[0018]
As the contrast yarn, a yarn obtained by kneading an X-ray opaque substance such as barium sulfate, silver sulfate, titanium oxide, or silicone into a resin, or an X-ray opaque material such as silver between two resin films is used. Examples thereof include a material in which a permeable substance is sandwiched, and this is cut into small pieces to form a thread.Specifically, as described above, a multifilament in which barium sulfate is kneaded in a polypropylene-based resin or a vinyl chloride in which barium sulfate is kneaded Threads of resin or silicone-based resin are exemplified.
[0019]
Further, when the contrast yarn is a multifilament, the yarn is easily deformed in the thickness direction as compared with the monofilament. Therefore, the cross yarn (the yarn of the surgical fabric main body that intersects with the contrast yarn like the above-mentioned cross gauze yarn) is slightly deformed. It is more preferable that the multifilament contrast yarn is deformed and hard to come off as described above only by the application of the tightening force.
[0020]
In the surgical fabric of the present invention, it is most preferable that the portion where two or more contrast yarns are adjacent extends over the entire length of the inserted contrast yarn. However, if they are adjacent to each other by a certain length, they act as described above in (1) to (3) at the adjacent locations, making it difficult for the contrast yarn to come off.
[0021]
The number of contrast yarns may be two or more, that is, three or four. However, since the contrast yarns have poor water absorbability, there is a concern that the texture of surgical fabric (gauze) may be hardened. It is not recommended to insert too much. From such a viewpoint, the number is preferably two or three, and most preferably two.
[0022]
Further, the present invention has an effect that the visibility by X-ray contrast is excellent, in addition to the effect that the contrast yarn hardly comes off as described above. In other words, when two or more contrast yarns are adjacent to each other, when the X-ray contrast is performed, the contrast yarn appears thick at a place where two (or three or more) contrast yarns are arranged in parallel to the contrast direction. Also, in a place where two (or three or more) contrast yarns overlap, the density (the amount existing on the X-ray transmission line) of the radiopaque substance (such as barium sulfate) becomes apparently high, so that the It looks brighter and the visibility is improved in any case. Even in a gauze in which a plurality of contrast yarns are arranged apart from each other (not adjacent to each other), the gauze is often folded in an irregular shape (crumple) and is present in the body, so that the contrast is enhanced 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 the yarns are overlapped by folding but also the case where the two contrast yarns arranged in parallel are imaged from the side. As a result, the probability of overlapping of the contrast yarns becomes extremely high, and thus the visibility is excellent.
[0023]
BEST MODE FOR CARRYING OUT 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 necessarily limited to the illustrated examples, and a range that can conform to the purpose of the preceding and following descriptions. It is also possible to carry out the present invention with appropriate modifications, and all of them are included in the technical scope of the present invention.
[0024]
<First embodiment>
FIG. 1A is a partially enlarged view of a surgical gauze (surgical fabric) according to Embodiment 1 of the present invention, and FIG. 1B is a cross-sectional view taken along the line AA shown in FIG.
[0025]
In this surgical gauze 30, cotton gauze yarns 31, 32 (15 tex (cotton yarn 40th count)) are arranged on a warp and a weft to constitute a gauze main body 33 (in the figure, 31 is a warp-direction gauze yarn, and 32 is a gauze yarn. A gauze yarn in the weft direction), and two contrast yarns 34, 35 (3800 dtex) are woven in the warp direction adjacent to the gauze body 33, and the contrast yarns 34, 35, the warp gauze yarn 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 into a polypropylene resin, spinning filaments, bundling 40 filaments, and further 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 as the thickness, the contrast yarns 34 and 35 were 0.53 mm in diameter, and the gauze yarns 31 and 32 were 0.15 mm in diameter. The contrast yarns 34 and 35 were about 3.5 times as thick as the gauze yarns 31 and 32.
[0027]
In manufacturing the surgical gauze 30, it is obtained by using a normal gauze loom and weaving using two contrast yarns 34 and 35 instead of two gauze warps. The woven surgical gauze 30 is appropriately degreased, bleached, and sterilized to conform to the gauze specified in the Japanese Pharmacopoeia.
[0028]
In addition, for example, in the above-mentioned conventional example (3), a special loom capable of weaving is required, but in this embodiment, as described above, weaving can be performed using a normal gauze loom, so that conventional manufacturing equipment can be used as it is. In addition, since the gauze can be produced in the same manner as a normal gauze production process, the production process does not become complicated. Therefore, the cost does not increase.
[0029]
The contrast yarns 34 and 35 of the surgical gauze 30 are thicker than the gauze yarns 31 and 32. In the contrast yarns 34 and 35 and the portions of the longitudinal gauze yarns 31a and 31b adjacent thereto, the yarn-to-yarn spacing is narrow and dense. In this case, the frictional resistance increases, and the weft gauze yarn (crossed gauze yarn) 32 rises and falls sharply in the contrast yarns 34 and 35, so that the weft gauze yarn is formed. A strong tightening force is generated at 32, and the contrast yarns 34 and 35 are strongly tightened. Further, by this tightening, as shown in FIG. 2 [a side view showing the contrast yarn 34 (or the contrast yarn 35 in the surgical gauze 30)], the contrast yarns 34 and 35 are deformed in an uneven shape. Elements such as the increase in frictional resistance, strong tightening, and irregular deformation are intertwined, and the contrast yarns 34 and 35 are very difficult to come off. If the contrast thread comes off, the surgical gauze will not be projected even if X-ray imaging is performed, and there is a concern that the surgical gauze will be difficult to find and remain in the body, but as described above, in this embodiment, Even if the pull-out force acts on the contrast yarns 34 and 35, they do not come off easily, so that the above-mentioned concerns are almost eliminated and the safety is further improved.
[0030]
In addition, since the two contrast yarns 34 and 35 are arranged adjacent to each other, when performing X-ray contrast, the contrast yarns appear thick and overlap with each other when viewed from a direction in which the contrast yarns appear to be lined up in a plane ( In contrast imaging from the side end direction (the direction of arrow C in FIG. 1), the image looks brighter and brighter than in the case of one image, so that it is easy to find. Even if a single contrast thread is woven like a conventional surgical gauze, it is folded in an irregular shape in the body, so that the overlapping part of the contrast thread is not small and the part is bright and bright. However, when the contrast yarns 34 and 35 are adjacent to each other as in the first embodiment, the contrast yarns 34 and 35 are not only folded and overlapped but also contrasted from the side end direction (the direction of arrow C in FIG. 1). Even in this case, they appear to overlap, and the probability that the contrast yarns overlap increases in this way, so that the visibility is further improved.
[0031]
<Embodiment 2>
FIG. 3 is a front view showing a surgical gauze (surgical fabric) 40 according to the second embodiment of the present invention. The same components as those in FIGS. 1 and 10 are denoted by the same reference numerals, and redundant description will be avoided.
[0032]
The surgical gauze 40 of the second embodiment has a high weaving density portion 52 having a high weaving density formed in the vicinity of the cut end 55 on the warp side, and the other configuration is the same as that of the first embodiment.
[0033]
In this surgical gauze 40, the tightening force by the high-woven density portion 52 is further applied, so that the contrast yarns 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 due to the removal of the contrast thread. Also, in the surgical gauze 40, as in the first embodiment, since the two contrast yarns 34 and 35 are adjacent to each other, there is a high probability that the contrast yarns are overlapped and X-ray contrast is increased, and the overlapping portion is brightly shined. Excellent visibility.
[0034]
In the first and second embodiments, the diameter of the contrast yarn is 0.53 mm. However, in general, the diameter of the contrast yarn is 0.57 mm, 0.65 mm, or 0.85 mm. Even when these contrast yarns are used, they are sufficiently thick with respect to gauze yarns (generally, about 0.15 mm in diameter), and are very difficult to come off because they are strongly tightened by crossed gauze yarns.
[0035]
In the first and second embodiments, the surgical gauze 30, 40 in which two contrast yarns are woven is shown. However, three or more gauze yarns may be woven. However, if the number of contrast yarns is too large, water absorption and flexibility may be impaired. Therefore, it is better not to weave in too much in consideration of these.
[0036]
In addition, in Embodiments 1 and 2, the contrast yarn is woven as the warp, but may be woven as the weft.
[0037]
In the first and second embodiments, the gauze body is made of the 40th cotton thread. However, the gauze body is not limited to this. Of course, another thickness of cotton thread (for example, the 30th thread) may be used. Other fibers, such as rayon and cupra, may be woven alone or by using a blended or combined yarn.
[0038]
Furthermore, in the first and second embodiments, a 30 cm × 30 cm surgical gauze is shown. However, the present invention is not limited to this. For example, a 1 cm × 15 cm gauze for compressing and stopping blood, an endoscope gauze having a size of 3 cm × 20 cm, and the like. The present invention can be applied to various fabrics used in surgery, such as a gauze for peeling, which is formed by folding gauze and measuring 3 cm × 3 cm.
[0039]
<Experiment>
With respect to the surgical gauze 40 (sample Nos. 1 to 6) similar to the second embodiment and the surgical gauze (samples Nos. 7 to 9) of the conventional example (1), a pull-out (drop-off) strength test of the contrast yarn was performed. went. In addition, these sample Nos. Sample Nos. 1 to 9 each have a size of 30 cm × 30 cm. In Sample Nos. 1 to 6, two contrast yarns were woven in the warp direction adjacent to each other. Nos. 7 to 9 are formed by weaving one contrast yarn in the warp direction. Further, with respect to the gauze only (contrast 30 cm × weft 30 cm) (contrast 30 cm × weft 30 cm) in which no contrast yarn was woven (sample Nos. 10 to 12), a pull-out (drop-off) strength test was performed on one gauze yarn constituting the gauze. . In each case, the gauze thread has a diameter of 0.15 mm and the contrast thread has a diameter of 0.53 mm.
[0040]
The test method was as follows. For samples 1 to 9, the sample was cut into a 5 cm width so that the contrast thread was at the center in the longitudinal direction (a strip of 30 cm x 5 cm), and only the gauze thread was cut off at one end 5 cm in the longitudinal direction. Only the contrast yarn was used, and only the gauze yarn was cut off at the other end 5 cm in the longitudinal direction by cutting only the contrast yarn. Sample No. With respect to Nos. 4 to 6, one of the two contrast yarns at one end 5 cm in the longitudinal direction was further cut off. These cut portions were used as grip portions (FIG. 4: A diagram for explaining a pull-out strength test method (No. 1)). Sample No. Regarding 10-12, one gauze yarn in the warp direction was regarded as the above-mentioned contrast yarn, and one end 5 cm and the other end 5 cm in the longitudinal direction were cut off in the same manner as above to obtain a grip portion. In each case, the gripping interval is 25 cm.
[0041]
Using a fixed-measurement elongation-type tensile tester (the same as the tester used in JIS L 1906 5.3.1), the gripping portions of the sample are gripped by the chuck portions 71 of the tester, and the sample is not loosened. The sample was pulled (initial load point: 0.03 N), the sample was pulled at a pulling speed of 20 cm / min (load cell rating: 50 N), and the load of pull-out resistance at that time was measured (FIG. 5: Method of pull-out strength test is described). (No. 2). Table 1 shows the results, and FIGS. 6 to 9 show charts of the measurement results. 6 to 9, the vertical axis indicates the load of pullout resistance, and the horizontal axis indicates elongation (the separation width of the chuck portion 71).
[0042]
[Table 1]

[0043]
As can be seen from Table 1 and FIGS. 6 to 9, Sample No. 1 in which one contrast yarn was woven was used. Sample No. 7 in which two contrast yarns were woven adjacent to each other as compared with Nos. 7 to 9. All of Nos. 1 to 6 have a large maximum load and are extremely excellent in pull-out resistance. In particular, in the case where the drawing force is applied to both of the two contrast yarns (Sample Nos. 1 to 3), all of the contrast yarns are cut. Therefore, when the two contrast yarns are gripped with tweezers and pulled out. Shows that the contrast yarn is cut before the contrast yarn is pulled out, and the remaining contrast yarn remains on the surgical gauze. Sample No. As can be seen from the values of the maximum pull-out resistance loads of Nos. 1 to 6 (the average of samples Nos. 1 to 3 is 18.434N, and the average of samples Nos. 4 to 6 is 7.265N), the gauze itself is likely to be damaged ( It is understood that the contrast yarn cannot be pulled out unless a large force is applied. Further, the sample No. Sample Nos. 10 to 12 measured the pull-out resistance of the gauze yarn. 10 to 12 and the results of Sample Nos. As can be seen by comparing the results of Sample Nos. 1 to 6, Sample Nos. Nos. 1 to 6 have remarkably excellent contrast yarn pull-out resistance.
[0044]
The sample No. Each of 1 to 12 has a high weave density portion near the cut end on the warp side, but at one end side in the longitudinal direction, the high weave density portion is removed by the above-mentioned gauze thread cutting, and the other end side in the longitudinal direction In this test, the high weave density portion does not contribute to the pull-out resistance load of the contrast yarn or the gauze yarn in this test. Accordingly, the surgical gauze 40 according to the second embodiment actually has higher pullout resistance due to the high-woven 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 come off, the contrast yarn hardly falls off from the surgical fabric. ) Can be prevented from being projected, thereby improving safety.
[Brief description of the drawings]
FIG. 1 is a view showing a surgical gauze (surgical fabric) according to a first embodiment of the present invention.
FIG. 2 is a side view illustrating a contrast yarn in the surgical gauze according to the first embodiment.
FIG. 3 is a front view showing a surgical gauze (surgical fabric) according to a second embodiment of the present invention.
FIG. 4 is a view for explaining a method of a pull-out strength test (No. 1).
FIG. 5 is a view for explaining a method of a pull-out strength test (part 2).
FIG. 5 is a chart showing measurement results of pull-out strength tests of 1 to 3.
FIG. 7 is a chart showing measurement results of pull-out strength tests of Nos. 4 to 6.
FIG. 10 is a chart showing measurement results of pull-out strength tests 7 to 9.
FIG. 13 is a chart showing measurement results of 10 to 12 pull-out strength tests.
FIG. 10 is a front view showing a surgical gauze of a conventional example (1).
FIG. 11 is a front view showing a conventional example (2) of gauze for endoscopic surgery.
12A is an enlarged view showing the vicinity of a heat-sealed portion of the gauze for endoscopic surgery shown in FIG. 11, and FIG. 12B is a cross-sectional view taken along the line BB shown in FIG.
FIG. 13 is an enlarged front view of a conventional surgical gauze of (3).
[Explanation of symbols]
30, 40 Surgical gauze 31 Warp-direction gauze thread 32 Weft-direction gauze thread 33 Gauze body 34, 35 Contrast thread 52 High-woven density part 54 Woven fabric ear part 55 Warp side cut end 71 Chuck

Claims (2)

In surgical fabric with contrast yarns,
Surgical woven fabric, characterized in that there are two or more woven portions adjacent to each other. The surgical fabric according to claim 1, wherein the contrast yarn is a multifilament.

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