JP2002325774A - Small-sized pad for surgery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized pad for surgery which is not imparted in flexibility. SOLUTION: This small-sized pad is formed by putting an X-ray non- transmittable thread 18 between the layers of an adsorptive pad portion 11 of a structure laminated with plural sheets and sewing a leader thread 22 across this X-ray non-transmittable thread 18. The X-ray non-transmittable thread 18 is attached to the pad part 11 while maintaining the flexibility and therefore the flexibility is maintained over the entire part of the pad portion 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small pad for use in, for example, brain surgery or orthopedic surgery, and more particularly to a small surgical pad that can be found in the body by X-ray contrast or the like. is there.

[0002]

2. Description of the Related Art A large number of gauze and small surgical pads are used in a surgical operation for the purpose of absorbing bleeding, protecting a tissue surface around a surgical site, and as a filter at the tip of a suction tube when aspirating blood or the like. It is used. In particular, when performing an operation on a small portion such as a brain surgery or an orthopedic surgery, a small surgical pad is exclusively used.

[0003] If such a small surgical pad or the like remains in the body, it may compress the brain or the like and cause an injury, and may cause various physical disorders such as pain, discomfort or slight fever. At the end of the operation, it is necessary to remove all small pads and the like from the body.

In particular, since the above-mentioned small pads are small (for example, 7 mm × 7 mm, 10 mm × 10 mm, 20 mm × 20 mm, 30 mm
× 60 mm etc.) It is easy to overlook and there is a concern that it cannot be completely removed. Therefore, a technique has been adopted in which a thread is sewn to the small pad (this thread is sometimes referred to as a pull-out thread in the present specification), and the other end of the pull-out thread is extended outside the body to be a mark. I have.

On the other hand, if the pad portion of the small surgical pad is made of gauze or cotton wool, lint and the like easily fall off from the cut end thereof, and it is not good that the lint and the like remain in the body. Such pad portions have been proposed. That is, a plurality of nonwoven fabrics laminated and entangled in the thickness direction (hereinafter sometimes referred to as a laminated nonwoven fabric), or a nonwoven fabric laminated on the front and back surfaces of the gauze and entangled in the thickness direction (hereinafter, referred to as Nonwoven fabric laminated gauze). Since the laminated non-woven fabric is a non-woven fabric, the cut ends are hardly melted to generate lint. In addition to the non-woven laminated gauze, the edges of the non-woven fabric layer are hardly unraveled. The gauze is also prevented from unraveling. Further, when the nonwoven fabric is thin, there is a concern that the strength is insufficient. However, the nonwoven fabric laminated gauze has an excellent property that sufficient strength can be secured by the gauze of the intermediate layer.

FIG. 2 is a perspective view showing a conventional small pad 60 for surgery. The small surgical pad 60 comprises an absorbent pad portion 61 made of six non-woven fabrics and a cotton pull-out thread 62. The pad portion 61 is zigzag-stitched by one end of the pull-out thread 62 (a zig-zag stitch portion). 62a), the lead yarn 62 is attached to the pad portion 61. Note that the zigzag stitching portion 62a is
It also serves to stop each nonwoven fabric from falling apart.

[0007]

As described above, in the conventional small pad for surgery, although the drawn thread sewn is a mark, the concern that the small pad remains in the body has been completely eliminated. Therefore, something that can be more reliably removed is desired.

The inventor of the present invention attaches an X-ray opaque thread to the pad portion of the small surgical pad, performs X-ray imaging (radiography) before closing the surgical site at the end of the operation, and obtains the X-ray image. Using the impermeable thread as a clue, he checked the presence or absence of a small pad, and came up with a method of removing it if it remained. As the X-ray impermeable yarn, a filament of a polypropylene resin kneaded with barium sulfate or a filament of a vinyl chloride resin or a silicon resin kneaded with barium sulfate is generally used. By utilizing the properties of the heat-fusible resin used for the non-ray permeable yarn, a method of attaching the X-ray opaque yarn to the surface of the pad portion by heat fusion was considered.

However, the X-ray impervious yarn in the portion that has been fused and solidified tends to be hard, and particularly when fine irritation is a problem, such as in the case of brain surgery, a hard mass may be formed. It is better to avoid installation by heat sealing.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a small surgical pad which can maintain its flexibility while using an X-ray opaque thread and can be more reliably removed from the surgical field.

[0011]

SUMMARY OF THE INVENTION A small surgical pad according to the present invention is a small surgical pad having a plurality of absorbent pad portions having a laminated structure and a draw-out thread attached thereto. The gist of the present invention is that a yarn containing an X-ray opaque substance (hereinafter sometimes referred to as an X-ray opaque yarn) is interposed.

By sandwiching the X-ray opaque yarn between the layers of the pad portion of the laminated structure, the X-ray opaque yarn can be attached to the absorbent pad portion without melting and solidifying. The X-ray opaque thread remains flexible, and thus the overall flexibility of the small surgical pad. Then, X-ray contrast is performed as described above, and the presence or absence of a small pad may be confirmed using the X-ray non-transparent thread as a clue.

Examples of the X-ray impermeable material include silver sulfate, titanium oxide, silicon and the like in addition to the above-mentioned barium sulfate, and this X-ray impermeable material is converted into a resin such as polypropylene, polyethylene terephthalate, and vinyl chloride. It is good to make it into a thread form by containing it.

Further, in the small surgical pad according to the present invention, it is preferable that the draw-out thread is sewn over the X-ray opaque substance-containing thread. Note that the expression "the drawn thread is sewn over the X-ray opaque thread" includes not only the case where the thread extends over the entire X-ray opaque thread but also the case where the thread extends over a part of the X-ray opaque thread. . It is more preferable that the entire X-ray opaque thread be sewn with the drawn thread over the entire area.

As described above, since the X-ray opaque yarn is generally a filament mainly composed of a synthetic resin, its surface is smooth and slippery, and the absorbent pad portion is small. Since the portion is also short, there is some concern that the X-ray opaque yarn will slip through simply by sandwiching it. However, as described above, by sewing the lead-out thread so as to straddle the X-ray opaque thread, the X-ray opaque thread can be firmly fixed to the pad portion, and does not easily fall off. In addition, since the attachment is not performed by heat fusion, the X-ray opaque yarn can maintain flexibility, and can maintain flexibility as a small surgical pad as a whole.

As the above-mentioned X-ray opaque thread, if a too thin thread is used, it will be difficult to find it in X-ray imaging, so it is preferable to use a thick thread. Such a thick thread is sewn to the absorbent pad portion. At the time of attachment, it is not necessary for the first stitch to cross over the entire diameter direction of this thick thread, and the sewing is performed so as to penetrate the X-ray opaque thread, that is, sewn over a part of the X-ray opaque thread. May be attached. As this sewing method, zigzag sewing using a sewing machine or the like can be mentioned.

In the present invention, the yarn containing the X-ray non-permeable material is preferably a non-twisted multifilament.

Since a non-twisted multifilament is excellent in flexibility, it is more preferable than a monofilament or a twisted yarn having the same thickness, that is, the same degree of visibility during X-ray imaging.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1A is a perspective view showing a small surgical pad according to one embodiment of the present invention, and FIG.
FIG. 2 is a sectional view taken along line BB shown in FIG.

The small surgical pad 10 comprises an absorbent pad portion 11 and a cotton pull-out yarn 12, and the absorbent pad portion 11 is provided on two cellulose non-woven fabrics 13 and 14 with an X-ray non-transparent thread 18 thereon. Are laminated and a cupra cotton 15 is laminated, and a cellulose nonwoven fabric 16 is further laminated, and these are entangled in the thickness direction to be integrated (FIG. 1 (b)). The X-ray non-transparent yarn 18 is a non-twisted polypropylene multifilament kneaded with barium sulfate.

The draw-out yarn 12 is zigzag stitched so as to straddle the X-ray opaque yarn 18 at one end thereof (zigzag stitch portion 12a) and sewn to the pad portion 11.

As described above, the zigzag stitch portion 12 of the pull-out thread 12
Since the X-ray opaque yarn 18 is pressed against the pad portion 11 by a, the X-ray opaque yarn 18 is firmly fixed and hardly comes off.

In addition, the non-transparent X-ray yarn 18 is flexible because it is a non-twisted multifilament, and the flexibility is maintained because the non-transparent yarn 18 is not fused. Therefore, the entire surgical small pad 10 is also flexible, and the risk of damaging tissue during surgery is small.

As described above, the small surgical pad according to the present invention has been specifically described with reference to the drawings showing examples. However, the present invention is not necessarily limited to the illustrated examples.
It is also possible to carry out the present invention with appropriate modifications within a range that can be adapted to the above-mentioned purpose, and all of them are included in the technical scope of the present invention.

For example, although the nonwoven fabric or cotton is laminated as the pad portion, the present invention is not limited to this. For example, a nonwoven fabric is laminated on a gauze and an X-ray opaque yarn is sandwiched between the layers. May be. Further, in the above example, the case of the pad portion having the four-layer structure is shown, but two or three layers, or five or
Of course, a six-layer structure may be used.

Further, in the above example, the drawing thread 12 is sewn so as to straddle the X-ray opaque thread 18, but the present invention is not limited to this, and the pad portion where the X-ray opaque thread 18 does not exist is shown. The draw-out thread 12 may be sewn to the portion 11. In the above example, the X-ray opaque thread 18 is arranged along the traveling direction of the zigzag stitch portion 12a of the pull-out thread 12. However, the present invention is not limited to this. The X-ray opaque thread 18 may be arranged orthogonally. The X-ray opaque thread 18 may be intersected with the zigzag sewn portion 12a so that the X-ray opaque thread 18 is not transmitted to the pad portion 11. It is possible to sew the thread 18 firmly.

[0027]

The small pad for surgery according to the present invention, to which the thread containing the radiopaque substance is attached and which has good flexibility, may cause damage to the tissue in the surgical field. Is small. Then, it is possible to find a small surgical pad by X-ray imaging using the above-mentioned X-ray opaque substance-containing thread as a mark.

[Brief description of the drawings]

FIG. 1A is a perspective view showing a small pad for surgery according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along the line BB shown in FIG.

FIG. 2 is a perspective view showing a conventional small pad for surgery.

[Explanation of Signs] 10 Small pad for operation 11 Absorbent pad section 12 Pull-out thread 12a Zigzag sewing section 13, 14, 16 Non-woven fabric 15 Cotton 18 X-ray non-transparent thread

Claims (3)

[Claims] 1. A small surgical pad in which a lead yarn is attached to an absorbent pad portion having a multi-layered structure, wherein a yarn containing an X-ray opaque substance is sandwiched between layers of the absorbent pad portion. A small surgical pad characterized by the following. 2. The small surgical pad according to claim 1, wherein the pull-out thread is sewn over the thread containing the radiopaque material. 3. The small surgical pad according to claim 1, wherein the yarn containing the X-ray opaque substance is a non-twisted multifilament.