JP2007175236A - Gauze and manufacturing method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gauze where an X-ray contrast thread is prevented from falling out by a simple process, and to provide a manufacturing method thereof. <P>SOLUTION: The gauze is composed of warps 11 and woofs 12 which are woven orthogonally to each other. The warps 11 are partially composed of the X-ray contrast thread 3, and the ends of the warps in the direction of the warps project from the woofs 12. The end 3a of the X-ray contrast thread is positioned near the woofs at the ends in the direction of the woofs. It is desirable that the woofs at the end in the direction of the woofs are woven tightly to form a tightly woven part A2, and the end 3a of the X-ray contrast thread is positioned at the tightly woven part A2. The X-ray contrast thread 3 does not project to a cut-off section from the tightly woven end of the gauze, so that even when the gauze is picked with forceps etc., the X-ray contrast thread is hardly picked and hardly falls out. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a gauze comprising warps and wefts woven perpendicularly to each other, wherein a part of the warp is composed of an X-ray contrast yarn, and a warp end portion in the warp direction protrudes from the weft and a manufacturing method thereof.

  In general, in a surgical operation, a gauze incorporating an X-ray impermeable component is used so that gauze remaining in the patient's body can be detected by performing radiographic imaging of the surgical site at the end of the operation. In the production of this type of gauze, when weaving warp 11 and weaving weft 12 with a shuttle, weaving one of warp 11 placed on the loom into a yarn containing a radiopaque component, Cut at the thread removal portion from which the weft thread 12 has been removed. When cutting the gauze, several centimeters of the warp yarn 11 remain, and the cut ends are in a state where several centimeters of the warp yarn 11 and the X-ray contrast yarn come out. At the time of surgery, if the end portion of the X-ray contrast yarn located at the cutting portion is picked with a lever or the like, the contrast yarn may come off. And when the gauze from which the X-ray contrast thread has been removed remains in the patient's body, there is a problem that it is difficult to find because it is not reflected in the X-ray photograph.

Thus, in order to prevent the X-ray contrast thread from falling off, measures as shown in Patent Documents 1 to 3 have been taken, but there is a problem that the manufacturing process becomes complicated.
JP 2002-143212 A JP 2003-325573 A JP-A-2005-052471

  In view of such conventional circumstances, an object of the present invention is to provide a gauze capable of preventing the X-ray contrast yarn from coming off by a simple process and a method for producing the same.

  In order to achieve the above object, the gauze according to the present invention is characterized by warps and wefts that are woven orthogonally to each other, a part of the warp is composed of an X-ray contrast yarn, and the warp end in the warp direction is from the weft. The end of the X-ray contrast yarn is positioned in the vicinity of the weft at the end in the warp direction.

  Desirably, the wefts at the warp end portions are densely woven to form a densely woven portion, and the end portions of the X-ray contrast yarn are positioned at the densely woven portion. Since the X-ray contrast yarn does not protrude from the densely woven end of the gauze in the cut portion, even if the gauze is pinched with an insulator or the like, there is almost no possibility of pinching the X-ray contrast yarn, and the X-ray contrast yarn is difficult to come off.

  On the other hand, the gauze manufacturing method described in the above feature is characterized in that the end of the X-ray contrast yarn is positioned near the weft at the end in the warp direction by cutting the X-ray contrast yarn. In this case, the X-ray contrast yarn may be pulled and cut. Further, the cutting may be performed by clamping the gauze body and the X-ray contrast yarn. Weaving gauze in a stretched state with tension applied to the X-ray contrast yarn, and cutting the warp yarn reduces the X-ray contrast yarn so that the end portion of the X-ray contrast yarn becomes the warp direction end portion. It may be located near the weft.

According to the features of the gauze and the method for producing the same according to the present invention, it has been possible to prevent the X-ray contrast yarn from falling off by a simple process.
Other objects, configurations, and effects of the present invention will become apparent from the following embodiments of the present invention.

Next, the present invention will be described in more detail with reference to the accompanying drawings as appropriate.
As shown in FIGS. 1 (c) and 2, the gauze 1 according to the present invention includes a gauze body 2 in which warp yarns (warp yarns) 11 and weft yarns (weft yarns) 12 are alternately woven, and a single piece stretched on the warp yarns 11. It consists of X-ray contrast thread 3. As an example, a 40th cotton yarn is used as the warp 11 and the weft 12, the density of the warp 11 and the weft 12 is about 12 / cm, and a strip-shaped plain woven continuous gauze having a width of about 30 cm as shown in FIG. 100 is produced using a loom.

  The X-ray contrast yarn 3 is a synthetic resin yarn such as polyvinyl chloride, polypropylene or polyester containing an X-ray opaque component, for example, barium sulfate. The diameter is 0.5 to 0.9 mm, which is thicker than the 40th cotton thread. The radiopaque component is not limited to barium sulfate. The synthetic resin yarn may contain a plasticizer or a colorant, and is not limited to the above synthetic resin.

  As shown in FIG. 1 (a) and FIG. 2 (a), the left and right ears orthogonal to the warp direction L are warp densely woven portions A4, appropriately length, for example, about every 30 cm in length, A yarn drawing portion A1 without the weft yarn 12 is formed, and both the front and back sides of the yarn drawing portion A1 are defined as a weft densely woven portion A2 in which the weft yarn 12 is woven more densely than the normal portion A3.

  Next, the gauze 1 containing the X-ray contrast yarn 3 is created by cutting the continuous gauze 100 so as to be separated for each gauze single body 101 at each thread drawing portion A1. In this state, the cut portion is in a state in which the warp 11 and the X-ray contrast yarn 3 protrude from the several cm weft 12, and there is a risk of the X-ray contrast yarn dropping off.

  Therefore, only the X-ray contrast yarn 3 protruding from the end of the weft densely woven portion A2 is cut, and as shown in FIGS. 1 (c), 2 (b) (c), 3 (a), 3 (b) It is assumed that the line contrast yarn end 3a is located in the vicinity of the weft at the L end in the warp direction (that is, the weft densely woven portion A2). In other words, the X-ray contrast yarn 3 is shorter than the warp yarn 11, and the X-ray contrast yarn end portion 3a in the vicinity of the thread drawing portion A1 is located near the weft densely woven portion A2 rather than the warp yarn end portion 11a.

  The cutting of the X-ray contrast yarn 3 may be performed at a portion protruding from the weft densely woven portion A2. In this case, the state shown in FIGS. 2B and 3A is obtained.

  On the other hand, as shown in FIG. 4, when both ends 3a of the X-ray contrast yarn 3 are pulled and cut, a number of X-ray contrast yarns 3 are in the weft densely woven portion A2 as shown in FIGS. 2 (c) and 3 (b). Enter from about mm to several tens of mm. In this case, the X-ray contrast yarn end portion 3a is protected by the weft yarn 12 in the weft densely woven portion A2, and is more difficult to fall off. As shown in FIG. 4, the gauze body 2 is clamped together with the X-ray contrast thread 3 with a large clamp 105 to prevent the X-ray contrast thread 3 from being biased, and both X-ray contrast thread end portions 3a are connected with a small clamp 106 as shown in FIG. Pick and cut.

  Further, although not shown in the drawings, when the continuous gauze 100 is manufactured, plain weaving is performed in a state in which the X-ray contrast yarn 3 is previously tensioned and stretched, and the X-ray contrast yarn 3 is contracted by cutting and the end portion 3a is the weft. You may make it locate in the densely woven part A2 vicinity or inside.

  In addition, this invention is not limited to the numerical value and member of the said embodiment, It can change suitably, without deviating from the meaning of this invention. Further, the weft densely woven portion A2 is not necessarily essential, and in this case, the vicinity of the weft densely woven portion A2 means the vicinity of the weft 12 at the end in the warp direction L.

  The present invention can be used as a gauze containing an X-ray contrast yarn and a method for producing the same.

(A) is a woven continuous gauze, (b) is a gauze before cutting an X-ray contrast yarn, and (c) is a gauze after cutting an X-ray contrast yarn. It is an enlarged view near the warp end part of gauze, (a) shows before X-ray contrast thread cutting, (b) (c) shows after X-ray contrast thread cutting. 2A is a cross-sectional view of FIG. 2A-A, and FIG. 2B is a cross-sectional view of FIG. 2B-B. The X-ray contrast thread cutting step is shown, (a) is a clamped state with a large clamp, (b) is an X-ray contrast thread tensioned state with a small clamp, and (c) is a schematic diagram showing a state after cutting the X-ray contrast thread. FIG.

Explanation of symbols

1: gauze, 2: gauze body, 3: X-ray contrast yarn, 3a: X-ray contrast yarn end, 11: warp, 11a: warp end, 12: weft, 100: continuous gauze, 101: gauze unit, 105 : Large clamp, 106: Small clamp, A1: Thread removal part, A2: Weft densely woven part, A3: Normal part, A4: Warp densely woven part, L: Warp direction

Claims (6)

A gauze comprising warps and wefts woven perpendicular to each other, wherein a part of the warp is composed of an X-ray contrast yarn, and the warp end in the warp direction protrudes from the weft, and the end of the X-ray contrast yarn Is positioned in the vicinity of the weft at the end in the warp direction. 2. The gauze according to claim 1, wherein the wefts at the warp direction end portions are densely woven to form a densely woven portion, and the end portions of the X-ray contrast yarn are positioned at the densely woven portion. The gauze manufacturing method according to claim 1 or 2, wherein an end portion of the X-ray contrast yarn is positioned in the vicinity of a weft at a warp direction end portion by cutting the X-ray contrast yarn. To make gauze. The method for producing gauze according to claim 3, wherein the X-ray contrast yarn is pulled and cut. The gauze manufacturing method according to claim 3 or 4, wherein the cutting is performed by clamping a gauze body and the X-ray contrast yarn. A gauze is woven in a state in which tension is applied to the X-ray contrast yarn, and the warp is cut to reduce the X-ray contrast yarn so that the end of the X-ray contrast yarn is formed at the end of the warp direction. The gauze manufacturing method according to any one of claims 3 to 5, wherein the gauze is positioned in the vicinity of the weft.

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