JP7495681B2 - Mask, mask manufacturing method, and mask manufacturing device - Google Patents

Description

The present invention relates to a mask, a mask manufacturing method, and a mask manufacturing apparatus.

When conducting an upper respiratory tract virus test, a nasal or pharyngeal swab is collected (see, for example, Patent Document 1). The test is performed by inserting a cotton swab through the subject's nostrils or mouth.

Other examinations performed through the nostrils or mouth include endoscopic examinations such as otolaryngological endoscopy, upper gastrointestinal endoscopy, and bronchoscopy (see, for example, Patent Document 2), as well as oral and nasal care, oral and nasal suction procedures, and oral and nasal tube procedures such as gastric tubes.

During these tests and procedures, many subjects sneeze or cough. Because the subjects' mouths and nostrils remain exposed, droplets from the subjects are spread. To prevent infection of the surgeon by droplets or aerosols from the subjects, the surgeon wears a mask.

Japanese Patent No. 5602279 Patent No. 5498522

Here, for safer testing, treatment, etc., it is desirable to reduce the spread of droplets from the subject.

The present invention aims to provide a mask, a mask manufacturing method, and a mask manufacturing device that can suppress the spread of droplets from a subject when performing oral or nasal testing or treatment.

In order to achieve the above object, the mask of the present invention comprises:
A mask body formed of a nonwoven fabric and covering the wearer's mouth and nostrils;
A plurality of slits are formed through the front and back of the mask body and intersect with each other;
Equipped with
An elongated body to be inserted into the mouth or nostrils of the wearer is pushed into the intersecting portions of the slits to form an opening through which the elongated body is inserted.

The mask of the present invention is worn by a subject when inserting an elongated object such as an endoscope, cotton swab, or treatment catheter into the subject's mouth or nostrils to perform an examination, treatment, etc. This mask has multiple slits that intersect with each other in the mask body, so that a relatively large opening can be easily formed by pushing the elongated object into the intersection of the slits. Therefore, the elongated object can be inserted into the subject's mouth or nostrils through the opening. This makes it possible to prevent droplets from spreading even if the subject sneezes, etc., when inserting the elongated object.

In addition, in the mask of the present invention, the slits are formed in the nonwoven fabric that forms the mask body, so before the opening is formed by pushing the elongated body in, the fibers around the slits become entangled, keeping the slits closed. This makes it possible to effectively prevent droplets from leaking through the slits.

The present invention makes it possible to suppress the spread of droplets from subjects when performing oral or nasal examinations, treatments, etc.

Front view of the mask. Rear view of the mask. 2A is a cross-sectional view taken along line AA in FIG. 1, and FIG. 2B is a view showing the state in which the pleats of the mask body in FIG. FIG. 1 is a block diagram showing a mask manufacturing apparatus. FIG. 1 is a diagram for explaining how to use a mask.

Below, a mask according to one embodiment of the present invention will be described with reference to the drawings.

As shown in Figures 1 to 3, the mask 10 comprises a mask body 11 and ear loops 12 provided at both lateral (left-right) ends of the mask body 11. The mask body 11 covers the wearer's mouth and nostrils. The mask body 11 is generally rectangular and elongated in the lateral direction. The ear loops 12 are portions that are hung around the wearer's ears and are made of elastic cords. Both ends of the ear loops 12 are attached to the mask body 11.

The mask body 11 is formed by stacking multiple sheets (specifically, three sheets) of nonwoven fabric 13. Therefore, the mask body 11 has a three-layer structure made up of these three sheets of nonwoven fabric 13. The three sheets of nonwoven fabric 13 include an outer nonwoven fabric 13a that forms the front surface of the mask body 11, an inner nonwoven fabric 13b that forms the back surface of the mask body 11, and an intermediate nonwoven fabric 13c that is sandwiched between the nonwoven fabrics 13a and 13b. Each of these nonwoven fabrics 13a to 13c has a filter function that captures viruses, dust, etc.

The outer nonwoven fabric 13a and the inner nonwoven fabric 13b are made of a thermal bonded nonwoven fabric. Although other nonwoven fabrics such as spunbonded nonwoven fabrics may be used in addition to the thermal bonded nonwoven fabric, in this embodiment, a thermal bonded nonwoven fabric is used from the viewpoint of making it easier to maintain the shape of the mask body 11. The intermediate nonwoven fabric 13c is made of a meltblown nonwoven fabric. The intermediate nonwoven fabric 13c is electrically charged and has the function of capturing viruses and the like by the force of static electricity. The outer nonwoven fabric 13a and the inner nonwoven fabric 13b are adsorbed to the intermediate nonwoven fabric 13c by the electrostatic force of the intermediate nonwoven fabric 13c. The intermediate nonwoven fabric 13c corresponds to an electrically charged filter.

The nonwoven fabrics 13a-13c are integrated by spot welding (e.g. ultrasonic welding) along their periphery. In Figures 1 and 2, the welded parts are indicated by the reference numeral 15. The upper and lower edges of each of the nonwoven fabrics 13a-13c are folded over and spot welded. A core material 18 is disposed on the upper edge of each of the nonwoven fabrics 13a-13c, extending laterally inside the folds. The core material 18 plastically deforms the upper edge of the mask body 11 to fit the wearer's nose, and is also called a nose fitter.

The mask body 11 has a belt portion 21 and multiple pleats 22-25. Therefore, the mask 10 of this embodiment is a pleated type mask, more specifically, an omega pleat type mask. The belt portion 21 is provided in the vertical center of the mask body 11 and extends in the horizontal direction of the mask body 11. The belt portion 21 has a constant vertical width.

The pleats 22-25 all extend in the lateral direction of the mask body 11. These pleats 22-25 include a number of upper pleats 22, 23 provided on the upper side of the belt portion 21, and a number of lower pleats 24, 25 provided on the lower side of the belt portion 21. Each of the upper pleats 22, 23 is folded so as to open upward.

Of the upper pleats 22, 23, the first upper pleat 22 is arranged so as to overlap a portion of the back side of the belt portion 21, and the second upper pleat 23 is arranged so as to overlap a portion of the back side of the first upper pleat 22. The first upper pleat 22 extends downward from the upper end portion 21a of the belt portion 21 toward the back side of the belt portion 21, and is folded at its lower end portion 22a so as to open upward. The first upper pleat 22 corresponds to the first pleat.

Each of the lower pleats 24, 25 is folded so as to open downward. Of the lower pleats 24, 25, the first lower pleat 24 is provided so as to overlap a portion of the back surface of the belt portion 21, and the second lower pleat 25 is provided so as to overlap a portion of the back surface of the first lower pleat 24. The first lower pleat 24 extends upward along the back surface of the belt portion 21 from the lower end portion 21b of the belt portion 21, and is folded at its upper end portion 24a so as to open downward. The first lower pleat 24 corresponds to the second pleat.

When the mask 10 is worn, each of the pleats 22-25 is spread up and down (see FIG. 3(b)). When each of the pleats 22-25 is spread up and down, the band portion 21 of the mask body 11 is displaced forward relative to the upper and lower ends of the mask body 11. Therefore, when the mask 10 is worn with each of the pleats 22-25 spread out, the band portion 21 is positioned furthest forward (farthest) from the wearer's mouth.

When viewed from the front of the mask body 11, the belt portion 21 has an overlapping region 27 that overlaps with the first upper pleat 22, an overlapping region 28 that overlaps with the first lower pleat 24, and a non-overlapping region 29 that does not overlap with either the first upper pleat 22 or the first lower pleat 24. The overlapping regions 27, 28 each have the same length in the vertical direction.

The non-overlapping region 29 is a region formed in the vertical range from the upper end 24a of the first lower pleat 24 to the lower end 22a of the first upper pleat 22 in the band portion 21. The vertical length of the non-overlapping region 29 is longer than the vertical length of each of the overlapping regions 27, 28. In more detail, the vertical length of the non-overlapping region 29 is more than twice the vertical length of each of the overlapping regions 27, 28.

In the non-overlapping region 29 of the belt portion 21, pairs of mutually orthogonal slits (cuts) are formed in multiple locations (specifically, three locations) in the horizontal direction. The pair of orthogonal slits includes a pair of first slits 31 that form a cross shape, and a pair of second slits 32 that form an X shape. The pair of first slits 31 is formed in only one location, whereas the pair of second slits 32 is formed in two locations.

Each of the slits 31, 32 is formed penetrating the front and back of the mask body 11. The sides of the mask body 11 that sandwich the slits 31, 32 are in contact with each other. More specifically, the fibers (fibers of the nonwoven fabric 13) on both sides of the slits 31, 32 are entangled with each other. Therefore, each of the slits 31, 32 is normally in a closed state.

A pair of first slits 31 are formed in the horizontal center of the mask body 11. One of the first slits 31 extends vertically, and the other extends horizontally. The length of each first slit 31 is set within the range of 6 mm to 15 mm, preferably within the range of 8 to 12 mm, for example, 10 mm. The first slits 31 intersect with each other at their respective centers.

The pair of second slits 32 are formed on both sides of the pair of first slits 31 in the horizontal direction. In this case, the pair of second slits 32 formed on both sides are located at the same position as the pair of first slits 31 in the vertical direction. Each second slit 32 extends in a diagonal direction with respect to the vertical and horizontal directions, and more specifically, extends in a direction that forms an angle of 45° with respect to the vertical and horizontal directions. Therefore, the slit direction of each second slit 32 is different from the slit direction of each first slit 31. The length of each second slit 32 is set within a range of 3 mm to 10 mm, preferably within a range of 5 to 6 mm, and is set to, for example, 6 mm. Furthermore, each second slit 32 crosses each other at the center.

The pairs of second slits 32 formed in two locations are both located at the same distance from the pair of first slits 31. The distance L between the point K1 where the pair of first slits 31 intersect and the point K2 where the pair of second slits 32 intersect is set within the range of 20 mm to 30 mm, and is set to, for example, 25 mm.

Next, the manufacturing apparatus and method for the above-mentioned mask 10 will be described with reference to FIG. 4.

As shown in FIG. 4, the mask 10 is manufactured by a mask manufacturing device 40. The mask manufacturing device 40 includes a body manufacturing device 41 that manufactures the mask body 11, a slit forming device 42 that forms slits 31, 32 in the mask body 11, and an ear hook attachment device 43 that attaches the ear hooks 12 to the mask body 11. The body manufacturing device 41 includes a welding device that spot welds the nonwoven fabrics 13a-13c that make up the mask body 11, and a pleat forming device that forms pleats 22-25 in the nonwoven fabrics 13a-13c. The slit forming device 42 also includes a blade (not shown) for slitting the mask body 11.

When manufacturing the mask 10, first, a body manufacturing process is performed in which the mask body 11 is manufactured by the body manufacturing device 41. In the body manufacturing process, the nonwoven fabrics 13a to 13c are first spot welded by a welding device, and then pleats 22 to 25 are formed in each of the nonwoven fabrics 13a to 13c by a pleat forming device. This completes the manufacture of the mask body 11.

Next, a slit forming process is performed in which the slits 31, 32 are formed in the mask body 11 by the slit forming device 42. In this process, the slits 31, 32 are formed in the non-overlapping region 29 of the mask body 11 while the pleats 22-25 of the mask body 11 are folded. Specifically, the slits 31, 32 are formed by cutting the non-overlapping region 29 with the blade of the slit forming device 42. In this case, the slits 31, 32 can be formed without widening the pleats 22-25, improving the manufacturing efficiency of the mask 10.

Next, an ear hook attachment process is performed in which the ear hooks 12 are attached to the mask body 11 by the ear hook attachment device 43. This completes the manufacture of the mask 10. The ear hook attachment process may be performed during the main body manufacturing process. In this case, the ear hook attachment device 43 may be included in the main body manufacturing device 41.

Next, the method of using the mask 10 will be described with reference to FIG. 5. The mask 10 is used, for example, as an examination mask that is worn in advance by a subject undergoing an endoscopic examination.

First, the endoscopic examination will be described. In the endoscopic examination, the endoscope 51 is inserted into the mouth or nostril of the subject, and the tip of the endoscope 51 is introduced to a predetermined examination site while in the inserted state to perform the examination. In the endoscopic examination, for example, a bronchoscope or an upper gastrointestinal endoscope is used as the endoscope 51. In the endoscopic examination, sputum generated in the throat of the subject due to the introduction of the endoscope 51 is also suctioned. To perform this suction process, the suction tube 52 is inserted into the mouth or nostril of the subject, and the tip of the suction tube 52 is introduced into the throat of the subject while in the inserted state. A suction device that suctions sputum is connected to the suction tube 52, and the suction device suctions sputum through the suction tube 52. The endoscope 51 and the suction tube 52 each correspond to a long body.

Next, the procedure for inserting the endoscope 51 and suction tube 52 into the subject's mouth or nostril will be described with reference to Figure 5.

First, when inserting the endoscope 51 into the subject's mouth or nostril, as shown in FIG. 5, the endoscope 51 is pushed into the intersection of the pair of first slits 31. This causes the entangled fibers on both sides of the first slits 31 to untangle, and an opening 54 through which the endoscope 51 can be inserted is formed in the mask body 11. The endoscope 51 is then inserted into the subject's mouth or nostril through the opening 54.

Similarly, when inserting the suction tube 52 into the subject's mouth or nostrils, the suction tube 52 is pushed into the intersection of the pair of second slits 32. More specifically, the suction tube 52 is pushed into one of the pairs of second slits 32 provided in two locations. This causes the entangled fibers on both sides of the second slits 32 to untangle, and an opening 55 through which the suction tube 52 is inserted is formed in the mask body 11. The suction tube 52 is then inserted into the subject's mouth or nostrils through this opening 55.

In the example of FIG. 5, the suction tube 52 is inserted into the pair of second slits 32 on the left side as seen from the subject. Although not shown, in this example, the suction device is installed on the left side of the subject. In this regard, the suction tube 52 extending from the suction device is inserted into the pair of second slits 32 on the left side.

As described above, with the mask 10 of this embodiment, the endoscope 51 and the suction tube 52 can be inserted into the mouth or nostrils of the subject through the openings 54, 55 (slits 31, 32) while the subject is wearing the mask 10. Therefore, even if the subject sneezes or coughs during insertion, the spread of droplets from the subject can be suppressed.

The configuration of this embodiment described above provides the following excellent effects:

As described above, the mask 10 of this embodiment can suppress the spread of droplets from the subject when an endoscope 51 is inserted into the subject's mouth or nostrils to perform an endoscopic examination, and when a suction tube 52 is inserted to perform a suction process of sputum.

In addition, an opening 54 for the endoscope 51 is formed by pushing the endoscope 51 into the intersection of a pair of first slits 31, and an opening 55 for the suction tube 52 is formed by pushing the suction tube 52 into the intersection of a pair of second slits 32. In these cases, relatively large openings 54, 55 can be formed without difficulty.

In addition, since the slits 31, 32 are formed in the nonwoven fabric 13 that forms the mask body 11, before the endoscope 51 or the suction tube 52 is pushed into the slits 31, 32 to form the openings 54, 55, the fibers around the slits 31, 32 are entangled, thereby keeping the slits 31, 32 closed. This makes it possible to effectively prevent the subject's droplets from leaking through the slits 31, 32. Therefore, there is a low possibility that the subject's droplets will spread from the slits 31, 32 through which a long object such as the endoscope 51 or the suction tube 52 is not inserted.

As a result, the spread of droplets from the subject can be effectively suppressed when performing oral or nasal endoscopic examinations.

The mask body 11 is formed by overlapping multiple layers of nonwoven fabric 13. This allows the fibers around the slits 31, 32 to become even more intertwined, further preventing droplets from leaking through the slits 31, 32.

Of the nonwoven fabrics 13a to 13c, the intermediate nonwoven fabric 13c is formed from an electrically charged filter for collection. In this case, the other nonwoven fabrics 13a and 13b are attracted to the intermediate nonwoven fabric 13c, so that the slits 31 and 32 can be kept more firmly closed.

The mask body 11 has multiple pleats 22-25. With such a pleated type mask 10, the mask body 11 can be moved forward away from the wearer's mouth when worn, making it easy for the endoscope 51 and suction tube 52 to access both the mouth and nostrils. In particular, the mask body 11 is of an omega pleat type, and slits 31, 32 are formed in the belt portion 21 provided in the vertical center, i.e., the part of the mask body 11 that is farthest from the wearer's mouth when the mask is worn, thereby further enhancing the above effect and making it difficult for the shape of the mask 10 to collapse.

As a pair of slits that intersect with each other, a pair of first slits 31 that intersect with each other and a pair of second slits 32 that intersect with each other are provided. In this case, while an endoscopic examination is performed with an endoscope 51 using the first slits 31, sputum can be suctioned with a suction tube 52 using the second slits 32.

A pair of mutually intersecting first slits 31 are provided in the horizontal center of the mask body 11, and a pair of mutually intersecting second slits 32 are provided on both sides of the pair of first slits 31 in the horizontal direction. In this case, regardless of whether the sputum suction device is placed on the left or right side of the subject, the sputum suction tube 52 connected to the sputum suction device can be inserted into the second slit 32 without interfering with the endoscope 51. This makes it possible to provide a suitable configuration for performing sputum suction processing while performing an endoscopic examination.

A pair of second slits 32 that intersect with each other are formed in an X shape. In this case, one of the pair of second slits 32 (hereinafter referred to as the second slit 32a) is inclined away from the first slit 31 in the horizontal direction (in other words, toward the opposite side to the center of the mask body 11 in the horizontal direction) as it moves from the upper side to the lower side. Here, since the second slits 32 are disposed on both the left and right sides of the first slit 31 in the mask body 11, it is considered that when the suction tube 52 is inserted into the subject's mouth or nostril through the second slit 32, the suction tube 52 is inserted obliquely into the second slit 32. In this regard, according to the above configuration, in such an inserted state, the suction tube 52 can be supported by the V-shaped portion of the second slit 32a (more specifically, the portion where the second slit 32a opens to form a V-shape). Therefore, the suction tube 52 can be held in a stable state.

The pair of intersecting second slits 32 are formed in an X shape as described above, while the pair of intersecting first slits 31 are formed in a cross shape. In other words, the slit orientation of the pair of intersecting first slits 31 is made different from the slit orientation of the pair of intersecting second slits 32. In this case, it is easy to distinguish between the first slit 31 for the endoscope 51 and the second slit 32 for the suction tube 52, and it is possible to prevent the endoscope 51 or the suction tube 52 from being inserted into the wrong slit.

The diameter of the endoscope 51 inserted into the first slit 31 is 4-8 mm for a bronchoscope, 9 mm for a typical upper gastrointestinal endoscope, and up to 15 mm for a large-diameter upper gastrointestinal endoscope with a fiber optic for use orally in the large intestine. In this regard, since the length of the first slit 31 is set within the range of 6 mm to 15 mm, it is easy to insert the endoscope 51 into the first slit 31. Note that if the endoscope 51 is not of a special size but is intended to be versatile, it is preferable that the diameter of the first slit 31 be in the range of 8-12 mm.

The diameter of the suction tube 52 is generally 3.3 to 4.67 mm, with a maximum of 6 mm. In contrast, the length of the second slit 32 is set within the range of 3 mm to 10 mm, making it easy to insert the suction tube 52 through the second slit 32.

When the distance between the pair of first slits 31 and the pair of second slits 32 is short, the endoscope 51 inserted into the first slits 31 and the suction tube 52 inserted into the second slits 32 may interfere with each other. This may make it difficult to insert the endoscope 51 and the suction tube 52 into the subject's mouth or nostrils. On the other hand, when the distance between the pair of first slits 31 and the pair of second slits 32 is long, the pair of second slits 32 will be shifted significantly to the left or right, making it difficult to insert the suction tube 52 into the subject's mouth or nostrils through the second slits 32.

In view of these points, in the above embodiment, the distance between the point K1 where the pair of first slits 31 intersect and the point K2 where the pair of second slits 32 intersect is set within the range of 20 mm to 30 mm. This makes it possible to prevent the above-mentioned problems from occurring in a configuration in which a first slit 31 for the endoscope 51 and a second slit 32 for the suction tube 52 are provided.

An opening 54 through which the endoscope 51 is inserted is formed by a pair (two) of first slits 31 that are perpendicular to each other. Similarly, an opening 55 through which the suction tube 52 is inserted is formed by a pair (two) of second slits 32 that are perpendicular to each other. In this case, by using the minimum number of slits to insert the endoscope 51 and the suction tube 52, it is possible to reduce splash leakage through the slits 31 and 32.

When manufacturing the mask 10, first the mask body 11 is manufactured by the body manufacturing device 41, and then the slits 31, 32 are formed in the mask body 11 by the slit forming device 42. In this case, since the slits 31, 32 can be formed after the mask body 11 is manufactured, it is sufficient to use the existing mask body manufacturing device (body manufacturing device 41) and add the slit forming device 42 separately, and the mask 10 with slits can be manufactured without changing the existing mask manufacturing device or mask manufacturing method.

The present invention is not limited to the above embodiment, and may be implemented, for example, as follows.

- In the above embodiment, a pair of mutually intersecting second slits 32 are provided in two locations, but they may be provided in only one location. Also, instead of providing a pair of mutually intersecting second slits 32, only a pair of mutually intersecting first slits 31 may be provided.

In the above embodiment, the pair of intersecting second slits 32 are positioned at the same vertical position as the pair of intersecting first slits 31, but they may be positioned above or below the pair of intersecting first slits 31.

- In the above embodiment, the pair of first slits 31 are arranged to cross each other at their respective centers, but the pair of first slits 31 may also be arranged to cross each other at a position offset from the center. Similarly, the pair of second slits 32 may also be arranged to cross each other at a position offset from the center.

Instead of a pair (two) of first slits 31 that intersect with each other, three or more first slits 31 that intersect with each other may be provided. Similarly, instead of a pair of second slits 32 that intersect with each other, three or more second slits 32 that intersect with each other may be provided. Furthermore, the number of first slits 31 that intersect with each other and the number of second slits 32 that intersect with each other do not necessarily have to be the same, and may be different numbers.

- In the above embodiment, the mask 10 is used during an endoscopic examination using the endoscope 51, but the mask 10 may also be used when taking a sample from a subject with a cotton swab in an upper respiratory tract virus test (such as an influenza virus test). In this case, a cotton swab is pushed into the intersection of a pair of first slits 31 to form an opening 54, and the cotton swab is inserted into the subject's mouth or nostrils through the opening 54. In this case, the cotton swab corresponds to the long body. The mask 10 can also be used when performing treatments such as oral and nasal care, and when inserting and placing a catheter. In this case, the suction catheter body or gastric tube is the long body. In addition to medical treatments and medical tests, it is also possible to suck up beverages or liquids while wearing the mask by passing a straw through the first slit 31 of the mask 10 when eating or drinking.

10...mask, 11...mask body, 21...belt portion, 13a-13c...nonwoven fabric, 22...first upper pleat as first pleat, 24...first lower pleat as second pleat, 29...non-overlapping region, 31...first slit, 32...second slit, 40...mask manufacturing device.

Claims (9)

An examination mask worn by a subject undergoing oral or nasal endoscopic examination,
A mask body formed of a nonwoven fabric and covering the subject 's mouth and nostrils;
A pair of slits that are formed through the front and back of the mask body and intersect with each other;
Equipped with
The pair of intersecting slits are
A pair of first slits intersecting each other;
a pair of second slits that are provided at positions spaced apart from the first slits and cross each other;
The pair of first slits are provided near the center of the mask body in the lateral direction,
the pair of second slits are provided on both sides of the pair of first slits in the lateral direction,
an endoscope to be inserted into the mouth or nostril of the subject is pushed into the intersecting portion of each of the first slits to form an endoscope opening through which the endoscope is inserted ;
a suction tube to be inserted into the mouth or nostril of the subject is pushed into the intersecting portion of each of the second slits to form an opening for the suction tube through which the suction tube is inserted;
The pair of first slits are cross-shaped,
The pair of second slits form an X shape . The inspection mask according to claim 1 , wherein the mask body is formed by stacking a plurality of nonwoven fabrics. 3. The inspection mask according to claim 2, wherein at least one of the plurality of nonwoven fabrics is formed by an electrically charged filter. The mask body has a plurality of pleats,
The test mask according to any one of claims 1 to 3, wherein the pair of slits are formed in a portion of the mask body that is furthest forward from the subject 's mouth when the mask is worn and each of the pleats is spread out. The mask body includes a band portion provided in a center portion in a longitudinal direction thereof and extending in a transverse direction,
The plurality of pleats are
A first pleat extends downward from an upper end of the band portion along a back side of the band portion and is folded at a lower end thereof so as to open upward;
A second pleat extends upward from the lower end of the band portion along the back side of the band portion and is folded at the upper end portion so as to open downward,
The inspection mask according to claim 4 , wherein the pair of slits are formed in an area of the belt portion that does not overlap with the first pleat and the second pleat when viewed from the front of the mask body. 6. The inspection mask according to claim 1, wherein a distance between a point where the pair of first slits intersect and a point where the pair of second slits intersect is set within a range of 20 mm to 30 mm. The length of the first slit is set within a range of 6 mm to 15 mm,
The inspection mask according to claim 1 , wherein a length of the second slit is set within a range of 3 mm to 10 mm. A method for manufacturing the inspection mask according to any one of claims 1 to 7 , comprising the steps of:
manufacturing the mask body;
forming the slits in the mask body;
The method for manufacturing an inspection mask includes the steps of: The inspection mask manufacturing apparatus according to any one of claims 1 to 8 ,
A mask body manufacturing device for manufacturing the mask body;
a slit forming device for forming the slits in the mask body;
An inspection mask manufacturing apparatus comprising:

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