JP2022075205A - Surgical material - Google Patents

Abstract

To provide a surgical material that prevents a long member from coming out of it.SOLUTION: A surgical material 1 has a substrate 2, a needle thread 11 and a bobbin thread sewed onto the substrate 2, and a first long member 31 that passes under a plurality of stitches 20 formed from the needle thread 11 or the bobbin thread and allows its presence to be confirmed by electromagnetic wave.SELECTED DRAWING: Figure 1

Description

The present invention particularly relates to surgical materials used in surgery.

In surgery, numerous gauze are used to control bleeding, absorb fluid, protect organs from abrasions, dryness or contamination, and isolate or suspend organs. If these gauze remain in the body, they not only cause physical discomfort, but can also adversely affect the organ to be operated on and the organs adjacent to it. In addition, depending on the residual site of gauze, it may cause unpredictable long-term disorders and infections, and may be a distant cause of immunodeficiency. Therefore, an X-ray contrast thread is often attached to the gauze in order to confirm the presence or absence of the gauze remaining in the body. X-ray imaging (X-ray photography) is performed before closing the surgical site at the end of surgery, and the presence or absence of gauze residue can be confirmed using the projected contrast thread as a clue.

Various methods have been proposed for suppressing the falling off of the X-ray contrast thread from the gauze. For example, in Patent Document 1, in a gauze in which warps and wefts are plain weave and a group of warps in the ear near the folded end of the weft is tightly woven, an X-ray contrast thread is mixed as a warp in the group of densely woven warps in the ear. The gauze is disclosed.

Japanese Unexamined Patent Publication No. 2007-330425

However, there is still room for improvement in the method of attaching a long member such as the X-ray contrast thread described in Patent Document 1 from the viewpoint of preventing the residue of gauze. Therefore, an object of the present invention is to provide a surgical material in which a long member does not easily come off.

One embodiment of the surgical material of the present invention that has achieved the above object is a base material, a needle thread and a bobbin thread sewn on the base material, and a plurality of needle threads or bobbin threads. It has a gist in that it has a first long member that passes under the stitch and is confirmed to be present by electromagnetic waves. According to the above-mentioned surgical material, since the first long member passes under the plurality of stitches formed by the needle thread or the bobbin thread, the first long member becomes the needle thread or the bobbin thread. It becomes easy to adhere and it is possible to prevent the long member from coming off from the surgical material. As a result, it becomes easy to confirm the presence or absence of the surgical material by using electromagnetic waves, and it is possible to prevent the surgical material from remaining in the body.

The surgical material is further provided with a second long member whose presence is confirmed by electromagnetic waves, and the plurality of stitches include a first stitch and a second stitch, and the first long member is , From one side to the other side of the first stitch, and from the other side to the other side of the second stitch, the second elongated member is from the other side to the other side of the first stitch, and the first. It is preferable that the stitch 2 passes from one side to the other side. As a result, the first long member and the second long member are arranged so as to intersect each other. Therefore, since the frictional force acting between the needle thread or the bobbin thread and the first and second long members can be increased, it is possible to suppress the falling out from the surgical material.

The surgical material is further provided with a second long member whose presence is confirmed by electromagnetic waves, and the first long member passes under a plurality of stitches formed by the needle thread, and the first long member is formed. The long member of 2 preferably passes under a plurality of stitches formed by the bobbin thread. By providing the first long member and the second long member in this way, it becomes easy to confirm the presence or absence of the surgical material.

In the above surgical material, the first long member is preferably a contrast thread containing an X-ray impermeable substance. This makes it possible to confirm the presence or absence of surgical material under fluoroscopy.

In the surgical material, the first long member is preferably an RFID thread having a long main body and an RF tag attached to the main body. Since the first long member has the RF tag, the existence of the surgical material can be confirmed by wireless communication using radio waves or electromagnetic fields.

In the surgical material, it is preferable that both ends of the first long member in the longitudinal axis direction are fixed to the base material. This makes it possible to further prevent the first long member from coming off from the surgical material.

In the above surgical material, the base material is preferably a laminate of a woven fabric or a knitted fabric and a non-woven fabric. By combining and laminating a plurality of types of fabrics in this way, the functionality of the base material can be enhanced.

According to the above-mentioned surgical material, since the first long member easily adheres to the needle thread or the bobbin thread, it is possible to prevent the long member from coming off from the surgical material. In addition, it becomes easy to confirm the presence or absence of the surgical material by using electromagnetic waves, and it is possible to prevent the surgical material from remaining in the body.

The plan view of the surgical material which concerns on one Embodiment of this invention is shown. The bottom view of the surgical material shown in FIG. 1 is shown. A partial cross-sectional side view of the surgical material shown in FIG. 1 is shown. A plan view showing a modification of the surgical material shown in FIG. 1 is shown. A partial cross-sectional side view of the surgical material shown in FIG. 4 is shown. A partial cross-sectional side view showing a modified example of the surgical material shown in FIG. 5 is shown.

Hereinafter, the surgical material according to the present invention will be specifically described with reference to the drawings. Modifications can also be made and they are all within the technical scope of the invention.

The surgical material according to the present invention is for medical use and is used for surgical operations such as laparoscopic surgery. The surgical material may be used in-vivo or extracorporeally. Surgical materials can be used for absorption and wiping of body fluids such as blood, isolation of organs, exclusion or suspension, and support of other organs. The surgical material may be a liquid absorbent surgical material.

One embodiment of the surgical material of the present invention passes under a substrate, a needle thread and a bobbin thread sewn to the substrate, and a plurality of stitches formed by the needle thread or the bobbin thread. It has a gist in that it has a first long member whose existence is confirmed by electromagnetic waves. According to the above-mentioned surgical material, since the first long member passes under the plurality of stitches formed by the needle thread or the bobbin thread, the first long member becomes the needle thread or the bobbin thread. It becomes easy to adhere and it is possible to prevent the long member from coming off from the surgical material. As a result, it becomes easy to confirm the presence or absence of the surgical material by using electromagnetic waves, and it is possible to prevent the surgical material from remaining in the body.

The composition of the surgical material will be described with reference to FIGS. 1 to 3. 1 to 3 show a plan view, a bottom view, and a partial cross-sectional side view of the surgical material according to the embodiment of the present invention. The surgical material 1 according to the embodiment of the present invention has a base material 2, a needle thread 11, a bobbin thread 12, and a first long member 31.

The surgical material 1 has a base material 2. The base material 2 is a part constituting the main body of the surgical material 1. The base material 2 can absorb and wipe body fluids such as blood, isolate organs, exclude or suspend them, and support other organs. The base material 2 may be used for medical purposes. The base material 2 may be used in open surgery or may be used in endoscopic surgery such as a laparoscope or a thoracoscope. The base material 2 may be an absorbent material having a liquid absorbing property, or may have a liquid repellent property. Examples of the base material 2 include a cloth-like body, a pad, a sponge, an extruded body (endractor), and a cotton ball. The cloth-like body can include gauze and drapes.

The shape of the base material 2 in a plan view is not particularly limited, and may be, for example, a circular shape, an oval shape, a polygonal shape, or a shape obtained by combining these.

1 to 3 show an example in which the base material 2 is a cloth-like body for medical use. The cloth-like body as the base material 2 has a first surface 3 and a second surface 4. The first surface 3 may form the front surface of the cloth-like body, and the second surface 4 may form the back surface of the cloth-like body.

When the base material 2 is a cloth-like body, the cloth-like body may be composed of one or a plurality of cloths. The fabric is not particularly limited as long as it is generally used for medical purposes, and for example, fabrics such as woven fabrics, knitted fabrics, and non-woven fabrics, fabrics on which resin is laminated, resin films, and materials combining these are used. Can be done.

The woven structure of the woven fabric is not particularly limited, and for example, a structure such as plain weave, twill weave, diagonal weave, and satin weave can be used. The knitting structure of the knitted fabric is not particularly limited, and for example, a structure such as circular knitting, weft knitting, warp knitting, or net knitting can be used.

Examples of the non-woven fabric include spunbond non-woven fabric, spunlace non-woven fabric, needle punch non-woven fabric, resin bond non-woven fabric, thermal bond non-woven fabric and the like.

Examples of the fibers constituting the fabric include natural fibers such as cotton, synthetic fibers such as polyester, polyethylene, polyamide and polyurethane, and recycled fibers such as cupra and rayon.

The base material 2 may be formed by laminating a plurality of fabrics, or may be formed by folding one fabric. The number of laminated fabrics is not particularly limited, and may be 3 layers or more, 4 layers or more, 6 layers or less, or 5 layers or less.

The fabrics can be joined by suturing, adhesive bonding, heat fusion, ultrasonic fusion, tacking, or a combination thereof.

The base material 2 is preferably a laminate of a woven fabric or a knitted fabric and a non-woven fabric. The non-woven fabric has low dust generation and has good flexibility, malleability and liquid absorption. In addition, the woven fabric or knitted fabric has high strength and good liquid absorption. By combining and laminating a plurality of types of fabrics in this way, the functionality of the base material 2 can be enhanced. FIG. 3 shows an example in which the base material 2 is a laminated body 5 in which the woven fabric 8 is arranged between the first nonwoven fabric 6 and the second nonwoven fabric 7.

In order to make the base material 2 easier to recognize during the operation, the base material 2 may be entirely colored or made of a colored material.

The base material 2 is preferably colored green. Even if the base material 2 absorbs blood, the color difference between the base material 2 and the body tissue can be increased when the base material 2 is irradiated with white light and photographed by a camera. In addition, it is possible to reduce the occurrence of halation when irradiated with white light, which makes it easier to recognize the base material 2 during surgery. At least the surface of the base material 2 is preferably colored in green, and the entire base material 2 may be colored in green.

It is preferable that a blue dye is attached to the base material 2. This makes it easier for the base material 2 to be colored blue or green. As a result, it is possible to increase the color difference between the base material 2 and the body tissue when it is irradiated with white light and photographed by a camera. In addition, it is possible to reduce the occurrence of halation when irradiated with white light, which makes it easier to recognize the substrate during surgery.

A yellowish dye may be attached to the base material 2. This makes it easier for the base material 2 to be colored green or yellow, making it easier to recognize the base material during surgery.

As the dye, indigo, riac, remazole, slene and the like can be used. Moreover, you may use a colorant other than a dye.

The surgical material 1 has a needle thread 11 and a bobbin thread 12. In FIG. 3, the needle thread 11 and the bobbin thread 12 are intertwined with each other. A plurality of stitches 20 are formed on the surface of the base material 2 by the needle thread 11 or the bobbin thread 12. The needle thread 11 and the bobbin thread 12 fix the first long member 31, which will be described later, to the base material.

As used herein, a stitch refers to a unit of a seam formed by a needle thread or a bobbin thread coming out of a base material and entering the base material again. In FIG. 1, the needle thread 11 forms 15 stitches 20. Also in FIG. 2, 15 stitches 20 are formed by the bobbin thread 12. In the present specification, a seam in which stitches 20 are continuously applied may be referred to as a seam. In FIGS. 1 to 2, a plurality of stitches 20 are formed by the needle thread 11 and the bobbin thread 12, and the seam 25 extends linearly on the base material 2.

The needle thread 11 and the bobbin thread 12 are threads that can be used for medical purposes, and may be monofilaments or multifilaments. The needle thread 11 and the bobbin thread 12 can be made of the same fibers as the fibers constituting the base material 2. The needle thread 11 and the bobbin thread 12 may be the same type of thread, or may be different types of threads.

When the base material 2 has a longitudinal direction x and a lateral direction y as shown in FIG. 1, it is preferable that the seam 25 extends along the longitudinal direction x of the base material 2. By providing the needle thread 11 and the bobbin thread 12 in this way, it becomes easy to arrange the first long member 31 in a wide range of the base material 2. Further, since it is easy to secure a long portion of the first long member 31 that is entwined with the needle thread 11 or the bobbin thread 12, it is possible to prevent the first long member 31 from coming off from the surgical material 1. Can be done. When the base material 2 has the longitudinal direction x and the lateral direction y, the seam 25 may extend along the lateral direction y of the substrate 2.

The existence of the first long member 31 is confirmed by electromagnetic waves. Since the first long member 31 is attached to the surgical material 1, it is possible to confirm the presence or absence of the surgical material 1 by using electromagnetic waves. Even after the surgical material 1 is used in the body, the existence of the surgical material 1 can be confirmed by using electromagnetic waves to prevent the surgical material 1 from being left in the body.

The first long member 31 may absorb or scatter electromagnetic waves. Further, the first long member 31 may include a portion that receives or transmits at least an electromagnetic wave. The type of electromagnetic wave is not particularly limited, but X-rays, radio waves, infrared rays and the like can be used.

The first long member 31 has a first end and a second end in the longitudinal axis direction. The first long member 31 may be solid or hollow. The first long member 31 may be composed of a single member from the first end to the second end, or may be composed of a plurality of members connected to each other in the longitudinal axis direction.

The shape of the cross section perpendicular to the longitudinal axis direction of the first long member 31 may be a circular shape, an oval shape, a polygonal shape, or a combination thereof. The first long member 31 may be formed in a linear or strip shape. The first long member 31 may be formed in a tape shape. The oval shape includes an elliptical shape, an egg shape, and a rectangular shape with rounded corners. The same applies to the following description.

The outer diameter of the first long member 31 is preferably larger than the outer diameter of the needle thread 11 and the outer diameter of the bobbin thread 12. As a result, it becomes easy to confirm the presence or absence of the surgical material 1, and it becomes easy to prevent the surgical material 1 from remaining in the body.

The outer diameter of the first long member 31 is preferably twice or more, more preferably three times or more, and may be five times or more the outer diameter of the needle thread 11 or the bobbin thread 12. .. Further, it is also permissible that the outer diameter of the first long member 31 is 1000 times or less or 100 times or less the outer diameter of the needle thread 11 or the bobbin thread 12.

The first long member 31 may be a contrast thread containing an X-ray impermeable substance. This makes it possible to confirm the presence or absence of the surgical material 1 under fluoroscopy.

The contrast thread can be composed of synthetic resin fibers containing an X-ray impermeable substance. Such synthetic resin fibers can be formed, for example, by kneading an X-ray impermeable substance into a synthetic resin such as polypropylene, polyester, polystyrene, polyvinyl chloride, silicone, or rayon. As the X-ray impermeable substance, for example, barium sulfate, silver sulfate, titanium oxide, silicon and the like can be used.

The contrast thread may be a monofilament or a multifilament.

The first long member 31 may be an RFID thread having a long main body and an RF tag attached to the main body. Since the first long member 31 has the RF tag, the existence of the surgical material 1 can be confirmed by wireless communication using radio waves or electromagnetic fields. It is also possible to read electronic information such as identification information possessed by the RF tag.

The elongated body has a first end and a second end in its longitudinal axis direction. The main body may be solid or hollow. The main body may be composed of a single member from the first end to the second end, or may be composed of a plurality of members connected to each other in the longitudinal axis direction.

The shape of the cross section perpendicular to the longitudinal axis direction of the main body may be a circular shape, an oval shape, a polygonal shape, or a combination thereof. The main body may be formed in a linear or band shape. The main body may be formed in the form of a tape.

As the material constituting the main body, the materials listed as the materials constituting the base material 2 can be used.

Examples of the RF tag include an IC chip having a memory and an antenna connected to the IC chip. By using an external sensing device, for example, a tag reader, electronic information such as identification information stored in the memory of the RF tag can be read non-contactly. The RF tag may be a passive type that receives radio waves emitted from a reader. When the RF tag has an energy source such as a battery, it may be an active type that emits radio waves by itself. The RF tag may be a semi-active type having both passive and active functions. Only one RF tag may be attached to the main body, or a plurality of RF tags may be attached.

The first long member 31 passes under the plurality of stitches 20 formed by the needle thread 11 or the bobbin thread 12. For example, in FIG. 3, the needle thread 11 forms a plurality of stitches 20 on the first surface 3 of the base material 2, and the bobbin thread 12 forms a plurality of stitches 20 on the second surface 4 of the base material 2. As shown in FIGS. 1 and 3, the first long member 31 passes under the plurality of stitches 20 formed by the needle thread 11. In other words, the first long member 31 is arranged so as to pass under the stitch 20. By arranging the first long member 31 in this way, the first long member 31 can easily come into close contact with the needle thread 11 or the bobbin thread 12, so that the first long member from the surgical material 1 can be easily attached. It is possible to suppress the omission of 31. As a result, it becomes easy to confirm the presence or absence of the surgical material 1 by using electromagnetic waves, and it is possible to prevent the surgical material 1 from remaining in the body.

The plurality of stitches 20 formed by the needle thread 11 or the bobbin thread 12 may include a first stitch 21 and a second stitch 22. For example, as can be seen from FIGS. 1 and 3, the first elongated member 31 passes from one side to the other side of the first stitch 21 and from the other side to the other side of the second stitch 22. There is. It can be said that the first long member 31 passes under the stitch 20 so as to meander in the extending direction of the seam 25 formed by the needle thread 11. Here, one side and the other side of the stitch 20 mean one side and the other side in the direction q perpendicular to the longitudinal direction p of the stitch 20. The direction q is a direction parallel to the surface of the base material 2. By arranging the first long member 31 in this way, it is possible to prevent the surgical material 1 from coming off.

Although not shown, the first elongated member 31 may pass from one side to the other side of the first stitch 21 and from one side to the other side of the second stitch 22. As a result, the first long member 31 is arranged so as to be wound around the needle thread 11 or the bobbin thread 12. By arranging the first long member 31 in this way, it is possible to prevent the surgical material 1 from coming off.

As shown in FIGS. 1 to 3, the base material 2 has at least the first surface 3 and the second surface 4, and the first long member 31 is arranged on the first surface 3 of the base material 2. It does not have to be arranged on the second surface 4 of the base material 2. Further, the first long member 31 is arranged on the first surface 3 of the base material 2, and may not be arranged on any surface other than the first surface 3. This makes it easier to attach the first long member 31 to the base material 2.

It is preferable that the first long member 31 passes only under the plurality of stitches 20 formed by the needle thread 11 or only under the plurality of stitches 20 formed by the bobbin thread 12. .. That is, it is preferable that the first long member 31 passing under the stitch 20 formed by the needle thread 11 does not pass under the stitch 20 formed by the bobbin thread 12. Further, it is preferable that the first long member 31 passing under the stitch 20 formed by the bobbin thread 12 does not pass under the stitch 20 formed by the needle thread 11. This facilitates the attachment of the first long member 31 to the base material 2. In FIG. 1, the first long member 31 passes only under the plurality of stitches 20 formed by the needle thread 11.

When the plurality of stitches 20 include the first stitch 21 and the second stitch 22, it is preferable that the first stitch 21 and the second stitch 22 are arranged side by side as shown in FIG. As a result, the first long member 31 passes through the adjacent stitches 20, so that the first long member 31 can be densely arranged. As a result, it is possible to prevent the first long member 31 from coming off from the surgical material 1.

Although not shown, at least one third stitch is arranged between the first stitch 21 and the second stitch 22, and the first elongated member 31 does not pass under the third stitch. It may be a thing. In this way, even if the first long member 31 passes through the stitches that are scattered, it is possible to prevent the first long member 31 from coming off from the surgical material 1.

As shown in FIG. 3, it is preferable that the separation distance 20A between the first stitch 21 and the second stitch 22 is shorter than the length 21A of the first stitch 21 and the length 22A of the second stitch 22. This facilitates contact between the needle thread 11 or the bobbin thread 12 and the first long member 31 over a wide range, and the frictional force acting between these threads can be increased, so that the long member is prevented from coming off. be able to. Here, the length of the first stitch 21 and the second stitch 22 is the length in the longitudinal direction of each stitch 20 from the time when each stitch 20 goes out of the base material 2 to the time when each stitch 20 enters the base material 2 again. means.

As shown in FIG. 1, it is preferable that both ends 31A of the first long member 31 in the longitudinal axis direction are fixed to the base material 2. As a result, it is possible to further prevent the first long member 31 from coming off from the surgical material 1.

The method of fixing both ends 31A of the first long member 31 in the longitudinal axis direction to the base material 2 is not particularly limited, and for example, ultrasonic fusion or heat fusion can be used.

FIG. 4 shows a plan view showing a modification of the surgical material 1 shown in FIG. 1, and FIG. 5 shows a partial cross-sectional side view of the surgical material 1 shown in FIG. As shown in FIGS. 4 to 5, a second long member 32 whose existence is confirmed by electromagnetic waves may be further provided. In that case, the plurality of stitches 20 include the first stitch 21 and the second stitch 22, and the first long member 31 is from one side to the other side of the first stitch 21 and the second stitch. Passing from the other side of 22 toward one side, the second elongated member 32 passes from the other side of the first stitch 21 to one side, and from one side of the second stitch 22 toward the other side. Is preferable. As a result, the first long member 31 and the second long member 32 are arranged so as to intersect each other. Therefore, since the frictional force acting between the needle thread 11 or the bobbin thread 12 and the first and second long members 31, 32 can be increased, it is possible to prevent the surgical material 1 from coming off.

In addition, for the structure, shape, constituent material, etc. of the second long member 32, the description of the first long member 31 can be referred to.

When the surgical material 1 is provided with the first long member 31 and the second long member 32, the types of the first long member 31 and the second long member 32 may be the same. , May be different from each other. For example, the first long member 31 may be a contrast thread and the second long member 32 may be an RFID thread. Further, the first long member 31 may be an RFID thread and the second long member 32 may be a contrast thread. Both the first long member 31 and the second long member 32 may be contrast threads. Further, both the first long member 31 and the second long member 32 may be RFID threads. When both the first long member 31 and the second long member 32 are contrast threads, the visibility of the surgical material 1 can be improved under fluoroscopy when placed on the surgical material 1. can. When both the first long member 31 and the second long member 32 are RFID threads, the RF tag attached to either the first long member 31 or the second long member 32. Even if there is a problem with the surgical material 1, the presence or absence of the surgical material 1 can be confirmed by the other.

As shown in FIG. 5, the base material 2 has at least a first surface 3 and a second surface 4, and the first long member 31 and the second long member 32 are the first surface of the base material 2. The first long member 31 and the second long member 32 may not be arranged on the second surface 4 of the base material 2.

As shown in FIG. 4, it is preferable that both ends 31A in the longitudinal axis direction of the first long member 31 and both ends 32A in the longitudinal axis direction of the second elongated member 32 are fixed to the base material 2. .. By fixing the first long member 31 and the second long member 32 to the base material 2 in this way, it is possible to further suppress the long member from falling off from the surgical material 1.

FIG. 6 shows a modified example of the partial cross-sectional side view of the surgical material 1 shown in FIG. As shown in FIG. 6, when the surgical material 1 is further provided with a second long member 32 whose existence is confirmed by electromagnetic waves, the first long member 31 is formed by a plurality of needle threads 11. The second long member 32 may pass under the stitch 202 formed by the bobbin thread 12. By providing the first long member 31 and the second long member 32 in this way, it becomes easy to confirm the presence or absence of the surgical material 1.

As shown in FIG. 6, the base material 2 has at least the first surface 3 and the second surface 4, and the first long member 31 is arranged on the first surface 3 of the base material 2. The second long member 32 may be arranged on the second surface 4 of the base material 2.

Although not shown, the surgical material 1 may be further provided with a third long member. For example, the first long member 31 and the second long member 32 pass under the plurality of stitches 20 formed by the needle thread 11, and the third long member is formed by the bobbin thread 12. It may pass under the plurality of stitches 20 that have been made. When the base material 2 has at least the first surface 3 and the second surface 4, the first long member 31 and the second long member 32 are arranged on the first surface 3 and the third surface 3 is arranged. The long member of the above may be arranged on the second surface 4. By further providing the third long member in this way, it becomes difficult to overlook the existence of the surgical material 1.

Although not shown, the surgical material 1 may be further provided with a fourth long member. For example, the first long member 31 and the second long member 32 pass under the plurality of stitches 20 formed by the needle thread 11, and the third long member and the fourth long member 32 pass under the plurality of stitches 20. The member may pass under a plurality of stitches 20 formed by the bobbin thread 12. In that case, when the plurality of stitches 20 formed by the bobbin thread 12 include the third stitch and the fourth stitch, the third long member is from one side to the other side of the third stitch, and the third stitch. The fourth stitch passes from the other side to one side of the fourth stitch, and the fourth elongated member passes from the other side to one side of the third stitch and from one side to the other side of the fourth stitch. You may. By further providing the fourth long member in this way, it becomes more difficult to overlook the existence of the surgical material 1.

For the structure, shape, constituent material, etc. of the third long member and the fourth long member, the description of the first long member 31 can be referred to.

Although not shown, at least one of the needle thread 11 and the bobbin thread 12 may be a long member whose existence is confirmed by electromagnetic waves. Either one of the needle thread 11 and the bobbin thread 12 may be a sewing thread, and any one of the needle thread 11 and the bobbin thread 12 may be a contrast thread or an RFID thread. For example, the needle thread 11 may be a sewing thread, the bobbin thread 12 may be a contrast thread, and the first long member 31 may be an RFID thread.

1: Surgical material 2: Base material 3: First surface 4: Second surface 5: Laminated body 6: First non-woven fabric 7: Second non-woven fabric 8: Woven fabric 11: Upper thread 12: Bobbin thread 20, 201, 202: Stitch 21: First stitch 22: Second stitch 25: Seam 31: First long member 32: Second long member

Claims (7)

With the base material
The needle thread and bobbin thread sewn on the base material,
A surgical material comprising a first long member that passes under a plurality of stitches formed by the needle thread or the bobbin thread and whose presence is confirmed by electromagnetic waves. A second long member whose existence is confirmed by electromagnetic waves is further provided, and
The plurality of stitches include a first stitch and a second stitch.
The first elongated member passes from one side to the other side of the first stitch and from the other side to one side of the second stitch.
The surgical material according to claim 1, wherein the second elongated member passes from the other side to one side of the first stitch and from one side to the other side of the second stitch. A second long member whose existence is confirmed by electromagnetic waves is further provided, and
The first long member passes under a plurality of stitches formed by the needle thread.
The surgical material according to claim 1, wherein the second long member passes under a plurality of stitches formed by the bobbin thread. The surgical material according to any one of claims 1 to 3, wherein the first long member is a contrast thread containing an X-ray impermeable substance. The surgical material according to any one of claims 1 to 3, wherein the first long member is an RFID thread having a long main body and an RF tag attached to the main body. The surgical material according to any one of claims 1 to 5, wherein both ends of the first long member in the longitudinal axis direction are fixed to the base material. The surgical material according to any one of claims 1 to 6, wherein the base material is a laminate of a woven fabric or a knitted fabric and a non-woven fabric.

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