JP6090853B2 - Method for producing medical gauze - Google Patents

Description

The present invention relates to a method of manufacturing a medical gauze, a method of manufacturing a medical gauze especially woven X-ray contrast member to cross the history direction gauze body.

  Medical gauze is used in large quantities, for example, by absorbing blood or the like when performing surgery, or by being sandwiched between a scissor and tissue to prevent tissue damage when pulling the tissue with a scissors. In order to prevent gauze from being left in the body after surgery, precautions have been taken, such as counting used gauze to prevent mistakes.

  Further, in the event that gauze is left in the body, as shown in FIG. 4 of the accompanying drawings, a medical gauze 50 in which an X-ray contrast member (thread) 60 is knitted into the gauze body 51 is used. . As a result, gauze remaining in the body can be found by radiography after surgery. Since the X-ray contrast yarn 60 is made of a synthetic resin fiber, there is a problem that the X-ray contrast yarn 60 is likely to fall out from the gauze body 51 made of cotton yarn. Medical gauze has been proposed (see Patent Document 1).

  In the conventional medical gauze 50 of this type, the X-ray contrast member 60 is woven in the warp 54 direction of the gauze body 51. This is knitted using a shuttle (杼) when passing the weft 55 of the gauze body 51, and the weft is formed by one long thread that is folded back at the end. This is due to the fact that it is difficult or difficult to partially knitting an X-ray contrast member having a certain length in the 55 direction. In the case of the warp 54 direction, a part of the warp 54 arranged in the beam is used as the X-ray contrast member 60, so that the medical gauze 50 in which the X-ray contrast member is woven is easily and continuously knitted. Can do it.

  However, the gauze in which the X-ray contrast member is knitted only in one direction is small when the gauze is left in the body, or depending on the angle of the X-ray contrast member with respect to the camera, There is a possibility that it cannot be sufficiently visually recognized, and a safer medical gauze has been demanded.

Japanese Patent No. 31303538

The present invention has been made in view of the above points, and for medical use in which an X-ray contrast member is crossed in the longitudinal direction of the gauze body and is woven into the X-ray contrast member so that the X-ray contrast member can be easily reflected in an X-ray image at the time of radiography. The manufacturing method which manufactures gauze is proposed. The present invention also proposes a method for producing a medical gauze can be woven well simply and easily and efficiently the weft X-ray contrast member in the weft direction of the gauze body.

That is, according to the first aspect of the invention, when weaving the gauze body with warps and wefts, a warp X-ray contrast member is woven at a predetermined interval or position in the warp in the warp direction, and an air jet loom in the weft direction. The present invention relates to a method for manufacturing a medical gauze , characterized in that a weft X-ray contrast member is ejected and woven by an X-ray contrast yarn nozzle at a predetermined interval or position among the wefts ejected from the weft insertion nozzle .

The invention according to claim 2 is the method for producing a medical gauze according to claim 1, wherein a thick step portion is formed by a sparse portion of the weft yarn at a predetermined interval position in the warp direction of the gauze body and is cut at the thick step portion. according to the.

The invention according to claim 3 is the method for producing a medical gauze according to claim 1, wherein a middle ear portion is formed by a loose portion of the warp yarn at a predetermined interval position in the weft direction of the gauze body and is cut at the middle ear portion. Concerning.

In the method for producing a medical gauze according to the first aspect of the present invention, when weaving the gauze body with warps and wefts, the warp direction is woven with warp X-ray contrast members at predetermined intervals or positions of the warps, and wefts In the direction, the weft X-ray contrast member is ejected and weaved by the X-ray contrast yarn nozzle at a predetermined interval or position among the wefts ejected from the weft insertion nozzle of the air jet loom. In addition, it is possible to provide a medical gauze incorporating an X-ray contrast member so that it can be easily reflected in an X-ray photograph at the time of X-ray photography, and the latitude X-ray contrast member is ejected by an air jet. X-ray contrast members can be easily and easily knitted efficiently and with the required number and free arrangement.

The method for producing a medical gauze according to the invention of claim 2 is characterized in that a thick step portion is formed by a sparse portion of the weft yarn at a predetermined interval position in the warp direction of the gauze body and is cut at the thick step portion. Can be manufactured efficiently.

  A third aspect of the present invention is that, in the first or second aspect, the middle ear portion is formed by a sparse portion of the warp yarn at a predetermined interval position in the weft direction of the gauze body, and is cut at the middle ear portion. Medical gauze can be manufactured efficiently.

It is a schematic plan view of the medical gauze which concerns on one Example manufactured with the manufacturing method of this invention. It is a schematic plan view which shows the 2nd Example which has two or more X-ray contrast members and latitude X-ray contrast members. It is a schematic plan view which shows the original fabric which concerns on Example manufacture. It is a schematic plan view of the conventional medical gauze which has an X-ray contrast member.

  As shown in FIG. 1, the medical gauze 10 has a plain weave gauze body 11 in which warp yarns 14 and weft yarns 15 alternately intersect. The thickness of the warp yarn 14 and the weft yarn 15 and the size of the gauze body 11 are not particularly limited. However, in the embodiment, the warp yarn 14 and the weft yarn 15 are made of cotton yarn, both 40th (length per unit weight of about 453.5 g) Is a plain weave with a density of about 12 pieces / cm, and the size of the gauze body 11 is about 30 cm × 30 cm. The medical gauze 10 of the embodiment is manufactured by cutting the large-size original fabric F, as will be described later, and a middle ear portion 17 is formed on the side end portion 16 in the direction of the weft 15. A thick step portion 19 is formed at the end portion 18 in the warp yarn 14 direction.

  The X-ray contrast member 20 (21, 22) crosses in the weft direction of the gauze body 11 and is woven together with the warp 14 and the weft 15. Conventionally known X-ray contrast members 20 (21, 22) are used. For example, X-ray contrast in which barium sulfate is added to synthetic resin fibers such as polypropylene resin, polyester resin, polyethylene resin, and polyvinyl chloride resin. And yarn.

  The medical gauze 10 shown in FIG. 1 has one meridian X-ray contrast member 21 and one weft X-ray contrast member 22 woven in the longitude and latitude directions, respectively. When this medical gauze 10 remains in the body, X-ray imaging member 21 and latitude X-ray imaging member 22 are arranged in a cross shape when X-ray imaging is performed. Even when the contrast member 21 is difficult to be reflected due to the camera angle, the latitude X-ray contrast member 22 is reflected in the X-ray photograph, and the medical gauze 10 in the body can be safely found. Since the trans X-ray contrast member 21 and the latitude X-ray contrast member 22 are arranged in a cross shape, at least one of them is reflected in the X-ray photograph, and the discovery rate of the remaining gauze is remarkably improved.

Like the medical gauze 10A shown in FIG. 2, it is possible to make the reflection more easily during radiographing by weaving two warp and latitude X-ray contrast members 21 and 22 respectively. The number and position of the background X-ray contrast members 21 and 22 in the background direction can be freely selected as necessary.

  Here, the air jet loom for manufacturing the embodiment will be described. The compressed air is ejected from the weft insertion nozzle to inject the weft, the weft flies between the shafts, and the tip is in the suction pipe opposite to the nozzle. Weft insertion is done by being drawn into. In the air jet loom, since the weft is passed through only one direction, the weft is cut every time one stage is passed. Therefore, when weaving the X-ray contrast member as a weft, the contrast yarn nozzle is moved to the weft ejection position by a known means at a predetermined interval or position in the weaving process of the gauze body, and the X-ray contrast member And then knitting.

  This makes it possible to weave the weft X-ray contrast member very easily in the weft direction of the medical gauze, and the X-ray contrast member can be manufactured without generating excess yarn due to folding at the side edge of the original fabric. The number and position of the X-ray contrast members can be set freely and extremely efficiently. In the case where a plurality of latitude X-ray contrast members are arranged in the weft direction, it is only necessary to change the interval for moving the contrast thread nozzle, and therefore it can be easily manufactured. By using one or more of the warp yarns spanned by the beam in the warp direction as an X-ray contrast member, the warp X-ray contrast member can be woven in the warp direction of the medical gauze.

  As shown in FIG. 3, in the raw fabric F of the medical gauze 10, by forming a thick step portion 19 in which the weft 15 is rough in the warp direction, the thick step portion 19 is cut to form a plurality of medical gauze 10. Can be produced. Moreover, if the densely woven portion 31 in which the wefts 15 are densely formed at both ends of the thick step portion 19 or the entangled woven portion in which the wefts 15 are entangled, the gauze after cutting can be made difficult to fray.

  Further, when a plurality of sheets are produced in the transverse direction using a wide loom, a large amount of the middle ear 17 having a coarse warp 14 is formed at predetermined intervals, and the middle ear 17 is cut to produce a large amount at a time. The medical gauze 10 can be manufactured economically. In the examples, 30 × 30 cm were produced by arranging the equivalent of 5 sheets in the weft direction. A densely woven portion 32 can be formed by densely filling the warp yarns 14 at both ends of the middle ear portion 17 so that fraying hardly occurs.

  The X-ray contrast member 20 can use known drop-off prevention means. For example, the warp and the weft on both sides of the X-ray contrast member 20 are made dense, or the X-ray contrast member 20 is made of twisted yarn together with the above-mentioned synthetic resin fibers and other thread members to increase the frictional resistance. Also good.

  In this medical gauze 10, one or a plurality of X-ray contrast members 20 are integrally disposed on a gauze body 11 composed of warps 14 and wefts 15. Therefore, it is possible to manufacture very easily without requiring a complicated process and equipment. The medical gauze according to the present invention is not limited to the above-described examples, and may be smaller than 30 × 30 cm, and the yarn count may be increased to adjust water absorption and flexibility. In the range which does not deviate from the meaning of this invention, such as using a thick thing or a thin thing, a part of structure can be changed suitably and can be implemented.

DESCRIPTION OF SYMBOLS 10,10A Medical gauze 11 Gauze main body 14 Warp 15 Weft 17 Middle ear part 19 Thick part 20 X-ray contrast member 21 Trans-X-ray contrast member 22 Lateral X-ray contrast member F Original fabric

Claims (3)

When weaving the gauze body with warps and wefts ,
In the warp direction, weaving a warp X-ray contrast member at a predetermined interval or position of the warp,
The weft direction of the medical gauze, wherein the interworking by injection weft X-ray contrast member by X-ray contrast thread nozzle at predetermined intervals to position of the weft ejected from the nozzle for weft insertion of the air jet loom Manufacturing method . The method for producing a medical gauze according to claim 1, wherein a thick step portion is formed by a sparse portion of the weft yarn at a predetermined interval position in the warp direction of the gauze body and is cut at the thick step portion. The method for producing a medical gauze according to claim 1 or 2, wherein a middle ear portion is formed by a loose portion of the warp yarn at a predetermined interval position in the weft direction of the gauze body and is cut at the middle ear portion.

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