WO2021005664A1 - 電磁波防護具 - Google Patents
電磁波防護具 Download PDFInfo
- Publication number
- WO2021005664A1 WO2021005664A1 PCT/JP2019/026889 JP2019026889W WO2021005664A1 WO 2021005664 A1 WO2021005664 A1 WO 2021005664A1 JP 2019026889 W JP2019026889 W JP 2019026889W WO 2021005664 A1 WO2021005664 A1 WO 2021005664A1
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- WIPO (PCT)
- Prior art keywords
- electromagnetic wave
- resin cover
- blocking net
- protective device
- wave blocking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/16—Screening or neutralising undesirable influences from or using, atmospheric or terrestrial radiation or fields
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
- G21F3/02—Clothing
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/008—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting against electric shocks or static electricity
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/12—Surgeons' or patients' gowns or dresses
- A41D13/1236—Patients' garments
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/26—Electrically protective, e.g. preventing static electricity or electric shock
Definitions
- the present invention relates to an electromagnetic wave protective device worn on an arbitrary part of the body in order to shield electromagnetic waves.
- Patent Document 1 the applicant has a mesh-like electromagnetic wave blocking net made of conductive fibers, which is used for medical purposes to be worn by a patient using an implantable medical device such as a heart pacemaker.
- electromagnetic wave protective clothing that prevents the endoscopic image from being interrupted by the influence of electromagnetic waves during innerwear and capsule endoscopy, and electromagnetic wave protective equipment that protects the genital organs from the electromagnetic waves of microwave thermotherapy devices.
- these medical innerwears are made by plating conductive fibers with silver to prevent the onset of metal allergies and improve durability, washing is unavoidable because they come into direct contact with the human body.
- Silver plating is chlorided or sulfided by sweat, etc., and there is contact with the human body and other clothing, so aging deterioration is inevitable.
- the electromagnetic waves of the microwave thermotherapy device may affect the reproductive organs, so it is necessary to shield the lower abdomen.
- Patent Document 1 The medical innerwear described in Patent Document 1 can be used as an electromagnetic wave protective device to be attached to these parts during an MRI examination to shield from RF pulses, but as described above, there is a problem of deterioration over time and washing. There is complexity in handling such as.
- the present invention has been made in view of such a situation, and an object of the present invention is to provide an electromagnetic wave protective device having not only excellent electromagnetic wave shielding ability but also significantly improved durability and handling such as washing. To do.
- the present invention provides the following electromagnetic wave protective equipment.
- the resin cover includes a first resin cover which is one of the outer material or the lining and a second resin cover which is the other of the outer material or the lining.
- a plurality of elements to be sewn having the electromagnetic wave blocking net and the first resin cover are sewn adjacent to each other, and A resin cover suture portion in which the first resin covers are sewn together and an edge of the adjacent electromagnetic wave blocking net are sewn to an overlapping portion where the edge portions of the adjacent first resin covers overlap each other. It has an electromagnetic wave blocking net suture part where the parts are sutured to each other, and The resin cover suture portion is exposed as a joint portion, and the electromagnetic wave blocking net suture portion is located in the first and second resin covers (1). Or the electromagnetic wave protective device described in (2).
- the end edges of the element to be sewn including the electromagnetic wave blocking net and the first resin cover are sewn together to form a tubular body, and
- the tubular body is formed of a resin cover suture portion in which the first resin covers are sewn together with an overlapping portion where the edge portions of the first resin cover overlap each other, and an electromagnetic wave blocking net. It has an electromagnetic wave blocking net suture part where the end edges are sutured to each other, and The resin cover suture portion is exposed as a joint portion, and the electromagnetic wave blocking net suture portion is located in the first and second resin covers (3). Described electromagnetic wave protective equipment.
- the resin cover includes a first resin cover which is one of the outer material or the lining and a second resin cover which is the other of the outer material or the lining.
- the end edges of the element to be sewn including the electromagnetic wave blocking net and the first resin cover are sewn together to form a tubular body, and
- the tubular body is formed of a resin cover suture portion in which the first resin covers are sewn together with an overlapping portion where the edge portions of the first resin cover overlap each other, and an electromagnetic wave blocking net. It has an electromagnetic wave blocking net suture part where the end edges are sutured to each other, and The resin cover suture portion is exposed as a joint portion, and the electromagnetic wave blocking net suture portion is located in the first and second resin covers (1).
- the electromagnetic wave protective device described in (2) (6)
- the electromagnetic wave protective device according to any one of (1) to (6) above which has a shape that does not form a loop portion on a plane perpendicular to the incident direction of the electromagnetic wave.
- (11) The electromagnetic wave protective device according to any one of (1) to (7) above, which is intended for patients undergoing microwave hyperthermia treatment.
- the electromagnetic wave blocking net in which conductive fibers are woven into a mesh shape exhibits an excellent electromagnetic wave shielding effect.
- the surface is made of resin, even if it gets dirty, it can be easily removed by simply wiping it with a wet towel or alcohol disinfectant cloth that has been wrung out tightly, eliminating the need for washing and making the surface smooth. Therefore, there is little wear. Therefore, the electromagnetic wave protective device of the present invention can maintain an excellent electromagnetic wave shielding effect for a longer period of time than before.
- the closing means can more reliably shield electromagnetic waves by eliminating the gap between the body and the wearing portion as much as possible, and can be used for patients of various body shapes and physiques.
- FIG. 3A is a developed view thereof
- FIG. 3B is a perspective view showing a worn state.
- the electromagnetic wave protective equipment As another example of the electromagnetic wave protective equipment, it is a schematic diagram which shows the electromagnetic wave protective equipment for a body and abdomen. It is a figure which shows the shape which does not form a loop part in the electromagnetic wave protective equipment, and is a modification of the electromagnetic wave protective equipment for a chest and abdomen shown in FIG. It is a figure for demonstrating the sewing method of the sewn portion of the two elements to be sewn, and is the figure which shows the process of sewn together the resin cover for lining. It is a figure for demonstrating the sewing method of the sewn portion of two elements to be sewn, (a) is the perspective view which shows the process of sewn the sewn resin cover for lining and the electromagnetic wave blocking net, and (b).
- the electromagnetic wave protective device of the present invention is an electromagnetic wave blocking net surrounded by a resin cover.
- FIG. 1 shows a front view of the electromagnetic wave blocking net 1, which is made by knitting conductive fibers 10 in a mesh shape, has flexibility and elasticity, and is freely deformable.
- the conductive fiber 10 in addition to metal fibers such as silver, copper, and nickel, conductive twisted yarn obtained by twisting carbon fiber yarn and the like and synthetic resin fiber yarn such as polyester is plated with two or more silver fibers. Twisted yarn or the like obtained by twisting a single fiber can be used.
- the conductive fibers 10 can be knitted with a general knitting machine such as a tricot knitting machine to form an electromagnetic wave blocking net 1. Although it is knitted into a hexagon in the figure, other shapes may be used.
- the electromagnetic wave blocking net 1 the electromagnetic wave blocking net described in Patent Document 1 can be referred to, and the "MG net” manufactured by Medical Aid Co., Ltd. sold by the applicant can also be used.
- electromagnetic wave blocking net 1 Although one electromagnetic wave blocking net 1 may be used, the electromagnetic wave shielding effect is enhanced by using a plurality of electromagnetic wave blocking nets 1 in layers.
- the electromagnetic wave blocking net 1 has a shape that matches the outer shape of the body part to be worn, and is surrounded by a resin cover to be the electromagnetic wave protective device of the present invention.
- FIG. 2 is a cross-sectional view thereof, in which the outer material 2a on the atmosphere side and the lining 2b on the body side are made of a resin sheet, the electromagnetic wave blocking net 1 is sandwiched, and the peripheral edge where the outer material 2a and the lining 2b are overlapped is formed. It is sewn.
- the resin sheet of the outer material 2a and the lining 2b serves as the resin cover 2. Further, the electromagnetic wave blocking net 1 is not joined to the outer material 2a and the lining 2b, and each of them can be freely deformed.
- the outer material 2a and the lining 2b, which are the resin covers 2 are both resin sheets and have water repellency and waterproofness. Therefore, dirt can be removed by simply wiping with a tightly wrung group towel or an alcohol disinfectant cloth. Yes, there is no need to wash the electromagnetic wave protective equipment. In addition, the surface is smooth, there is little wear with other clothes, and it has excellent durability. Further, coloring is possible, and the design can be enhanced.
- any resin that is widely used in clothing can be used, and polyamide (nylon), polyester, etc. can be used. Since polyamide and polyester have a certain degree of heat resistance, warm water can be used when wiping off dirt, and the dirt removing performance is also excellent.
- the electromagnetic wave protective device of the present invention surrounds the electromagnetic wave blocking net 1 with the resin cover 2 as described above, and can take various forms depending on the part of the body to be worn. 3 to 8 show examples of various electromagnetic wave protective devices used during MRI examinations.
- FIG. 3 is a schematic view showing an electromagnetic wave protective device for protecting the chest / abdomen (hereinafter, “electromagnetic wave protective device for chest / abdomen”), and the electromagnetic wave protective device 20 for chest / abdomen is a so-called “best” as a whole. It is in the shape of ".
- the electromagnetic wave blocking net is made by knitting conductive fibers into a mesh shape into a vest, and is, for example, a vest (not shown) made of "MG net” manufactured by Medical Aid Co., Ltd. Then, the vest of this electromagnetic wave blocking net is sandwiched between, for example, a polyamide outer material 21a and a lining 21b, and the overlapped peripheral edges are sutured to obtain an electromagnetic wave protective device 20 for the chest and abdomen.
- the electromagnetic wave protective device 20 since the electromagnetic wave blocking net covers the patient's chest, abdomen and back when worn, it protects the patient who is using a cardiac pacemaker at the time of MRI examination and is not embedded in the chest. It is possible to prevent heat generation of magnetic metals (metal stents, metal wires, etc.) and heat generation and discoloration of metal components contained in dyes such as tattoos. Furthermore, by shielding the RF pulse of the chest during head MRI imaging, it is possible to suppress the folded artifact (reflection due to reflection) of the chest.
- the electromagnetic wave blocking net covers the patient's chest, abdomen and back when worn, it protects the patient who is using a cardiac pacemaker at the time of MRI examination and is not embedded in the chest. It is possible to prevent heat generation of magnetic metals (metal stents, metal wires, etc.) and heat generation and discoloration of metal components contained in dyes such as tattoos. Furthermore, by shielding the RF pulse of the chest during head MRI imaging, it is possible to suppress
- the chest / abdomen electromagnetic wave protective device 20 can be tied to the body with a string 22. Further, it can be opened and closed by the hook-and-loop fastener 23 from the chest to the abdomen.
- the string 22 and the hook-and-loop fastener 23 can eliminate gaps between the chest, abdomen, and back when worn, and can accommodate patients of various body shapes and physiques.
- FIG. 4 shows an electromagnetic wave protective device for protecting the lower abdomen (hereinafter referred to as "electromagnetic wave protective device for the lower abdomen"), and the electromagnetic wave protective device 30 for the lower abdomen is generally in the shape of shorts.
- the electromagnetic wave blocking net is made by knitting conductive fibers into a mesh shape into shorts, and is, for example, shorts (not shown) made of "MG net” manufactured by Medical Aid Co., Ltd. Then, the shorts of the electromagnetic wave blocking net are sandwiched between, for example, a polyamide outer material 31a and a lining 31b, and the overlapped peripheral edges are sutured to obtain an electromagnetic wave protective device 30 for the lower abdomen.
- an electromagnetic wave blocking net covers the patient's lower abdomen when worn to prevent heat generation of the stent and coil in the pelvis and the non-magnetic metal implant embedded in the hip joint, and dyes such as tattoos. Prevents fever and discoloration of the metal components contained in the pelvis and protects the reproductive organs.
- the waist 32 and hem 33 are bag-shaped and pass through the string 35, and by tying them with the string 35 when worn, the waist 32 and hem 33 can be narrowed to eliminate the gap between the abdomen and thighs of the body.
- the opening dimensions of the waist 32 and the hem 33 can be adjusted by adjusting the position of the knot of the string 35, which makes it possible to accommodate patients with different body shapes and physiques.
- FIG. 5 is an electromagnetic wave protective device for protecting the hands, feet, and fingers (hereinafter, “electromagnetic wave protective device for hands, feet, and fingers”).
- the hand / foot / finger electromagnetic wave protective device 40 has a bag-shaped main body 41 for inserting the hand or foot and a cylindrical branch 42 for introducing an air pump type buzzer for emergency communication. Prevents heat generation of non-magnetic metal rings (especially necessary when the ring cannot be removed), heat generation and discoloration of metal components contained in dyes such as tattoos by shielding electromagnetic waves.
- the patient holds an air pump type buzzer for emergency contact and notifies an outside inspector when he / she feels unwell during the MRI examination, and a finger loop formed when holding a spherical air pump type buzzer. If you want to shield your hands or fingers, use a structure that allows you to shield your hands and fingers while holding the emergency contact buzzer.
- the main body 41 is prepared by preparing a part of a cylinder made of an electromagnetic wave blocking net, for example, "MG net” manufactured by Medical Aid Co., Ltd., and having an opening corresponding to the branch 42, which is made of polyamide, for example. It is obtained by sandwiching it between the outer material and the lining and suturing it in a bag shape along the overlapping peripheral edges. Further, the branch portion 42 is obtained by sandwiching a tubular body made of the same net between an outer material and a lining made of polyamide, for example, and suturing the overlapped peripheral edges. Then, a branch portion 42 is attached to the opening of the main body portion 41, and both are sutured and integrated to form an electromagnetic wave protective device 40 for hands, feet, and fingers.
- an electromagnetic wave blocking net for example, "MG net” manufactured by Medical Aid Co., Ltd.
- the hand / ankle insertion port 41a of the main body 41 and the insertion port 42a of the air pump type buzzer for emergency contact of the branch 42 may be formed into a bag shape, and the string 43 may be passed through each. Then, when the buzzer is attached, it can be squeezed with a string 43 to eliminate a gap between the wrist and the air pump type buzzer for emergency contact.
- the electromagnetic wave protective device 40 for the hand, foot, or finger shown in the figure may be held by either the left or right hand, and the other is the main body. Only part 41.
- FIG. 6 is an electromagnetic wave protective device for protecting the neck (hereinafter, “electromagnetic wave protective device for the neck”)
- FIG. 6 (A) is a developed view thereof
- FIG. 6 (B) is a perspective view showing a worn state. It is a figure.
- the cervical electromagnetic wave protective device 50 has a strip-shaped main body portion 51 and a skirt portion 52 sewn on one long side of the main body portion 51.
- a hook-and-loop fastener 55 is sewn on the lining 53b at one end in the longitudinal direction of the main body 51
- a hook-and-loop fastener 56 is sewn on the outer material 53a at the other end in the longitudinal direction.
- the main body 51 is rounded into a cylindrical shape and fastened with hook-and-loop fasteners 55 and 56.
- the skirt portion 52 spreads out in a circle and covers the upper part of the chest from the lower part of the neck.
- the gap can be eliminated according to the thickness of the patient's neck.
- Electromagnetic wave protective equipment for the neck is mainly used in combination with electromagnetic wave protective equipment for the chest and abdomen, and it is not possible to block electromagnetic waves with the electromagnetic wave protective equipment for the chest and abdomen alone, and non-embedded in the neck.
- the main body 51 is obtained by sandwiching an electromagnetic wave blocking net, for example, a strip made of "MG net” manufactured by Medical Aid Co., Ltd., between an outer material 53a and a lining 53b made of polyamide, and suturing the overlapped peripheral edges. 55 and 56 are sewn. Further, the skirt portion 52 is obtained by sandwiching a trapezoidal band made of the same net between an outer material and a lining made of polyamide, for example, and suturing the overlapped peripheral edges.
- an electromagnetic wave blocking net for example, a strip made of "MG net” manufactured by Medical Aid Co., Ltd.
- FIG. 7 is an electromagnetic wave protective device for protecting the torso / abdomen (hereinafter referred to as “electromagnetic wave protective device for the torso / abdomen”), and takes the form of a “belly band”.
- the body / abdomen electromagnetic wave protective device 60 has a tubular main body 61 that covers the body / abdomen.
- a cylinder made of an electromagnetic wave blocking net for example, "MG net” manufactured by Medical Aid Co., Ltd. is prepared, and this is sandwiched between, for example, a polyamide outer material 61a and a lining 61b, and has a tubular shape along the overlapped peripheral edge. Obtained by suturing.
- the circumference of the upper end (chest side) of the main body 61 and the circumference of the lower end (lower abdomen side) may be formed into a bag shape, and the string 62 may be passed through each. Then, when worn, it can be squeezed with a string 62 to eliminate a gap between the body and the abdomen.
- the electromagnetic wave protective device is made into a single band, which is used by wrapping it around a body part where RF pulses are to be shielded, such as the arm or leg, and is not implanted in the elbow or knee. It is also possible to prevent heat generation of artificial joints of magnetic metal and heat generation and discoloration of metal components contained in dyes such as tattoos. Also, if you want to magnify the right foot, you can wrap the electromagnetic wave protection around the left foot to suppress the folding artifact of the left foot, and if you want to magnify the shoulder, wrap the electromagnetic wave protection from the elbow down to the folding artifact of the arm. Can be suppressed.
- the electromagnetic wave protective device of the present invention is easy to wear, and the string or hook-and-loop fastener can eliminate the gap between the device and the mounting site to enhance the shielding effect, and can be used for patients of various body shapes and physiques. You can also do it. Further, since the outer material and the lining are made of resin, even if they become dirty, they only need to be wiped off, which eliminates the need for washing, and since the surface is smooth, there is little wear even if they rub against the inspection gown, and the durability is high. Furthermore, it can be sterilized by simply wiping it with an alcohol sterilization cloth, which is excellent in hygiene and can be reused.
- the electromagnetic wave protective device is also irradiated with the electromagnetic wave in the direction substantially perpendicular to the surface thereof. Therefore, for example, in the vest-shaped electromagnetic wave protective device 20 for chest and abdomen shown in FIG. 3, the electromagnetic wave is irradiated to the side surface of the body substantially perpendicularly when worn, and the armhole indicated by reference numeral 25 is relative to the incident direction of the electromagnetic wave. It may be an opening that forms a loop portion on a vertical surface. Then, an eddy current is generated in this loop portion and the temperature becomes high.
- the shape with the sleeve 28 is attached.
- the surface of the sleeve 28 is substantially perpendicular to the incident direction of the electromagnetic wave emitted from the left-right direction of the paper surface, and does not form a loop portion on the plane perpendicular to the incident direction of the electromagnetic wave.
- the surfaces of the electromagnetic wave protector 30 for the lower abdomen, the electromagnetic wave protector 40 for the hands / feet / fingers, the electromagnetic wave protector 50 for the neck, and the electromagnetic wave protector 60 for the body / abdomen shown above are all incident with electromagnetic waves. Since it is substantially perpendicular to the direction, the loop portion is not formed on the plane perpendicular to the incident direction of the electromagnetic wave at the time of mounting.
- the seams on the sewing of the electromagnetic wave protective equipment are processed so that the electromagnetic wave blocking nets are electrically connected to each other.
- the suture is performed as shown in FIGS. 9A to 9D.
- first resin covers two resin covers 100 (hereinafter referred to as “first resin covers”) to be the outer material or the lining are stacked so that the surfaces are in contact with each other, and one side is overlapped.
- This sutured portion is indicated by reference numeral 101 and is referred to as a “resin cover sutured portion 101”.
- the resin cover suture portion 101 is located, for example, at the position of the edge portion 1 cm from the edge edge of the first resin cover 100.
- FIG. 9B (a) the electromagnetic wave blocking net 110 is superposed on the back surface of the one overlapping first resin cover 100, and is parallel to the resin cover suture portion 101 and the resin cover. It is sewn together with the overlapping first resin cover 100 on the outside of the sewn portion 101, for example, at the position of the edge portion 5 mm from the edge portion of the first resin cover 100.
- This sutured portion is indicated by reference numeral 111 and is referred to as an “electromagnetic wave blocking net suture portion”.
- FIG. 9B (b) is a schematic view of FIG. 9A (a) viewed from the direction AA.
- the number of electromagnetic wave blocking nets 110 is two, but it may be three or more, or one. When there are two or more electromagnetic wave blocking nets 110, the electromagnetic wave blocking nets are overlapped and sewn together to be integrated.
- FIG. 9C shows a state in which the first resin cover 100 to which the electromagnetic wave blocking net 110 shown in FIG. 9B is sewn is developed in the left-right direction on the paper surface centering on the resin cover sewn portion 101.
- a plurality of sutured elements SA and SB including the electromagnetic wave blocking net 110 and the first resin cover 100 are sewn adjacent to each other.
- An electromagnetic wave blocking net suture portion 111 in which the end edge portions are sutured to each other is provided.
- the other resin cover (hereinafter, "second") becomes the outer material or the lining.
- the resin cover ) 120 is sewn on the surface of the first resin cover 100 opposite to the electromagnetic wave blocking net 110 with the surfaces facing each other.
- the first resin cover 100 to which the electromagnetic wave blocking net 110 is sewn is turned over to the side of the second resin cover 120, and the second resin cover 120 is placed on the first side. It is sewn with the resin cover 100.
- a three-layer structure in which the electromagnetic wave blocking net 110 is sandwiched between the first resin cover 100 and the second resin cover 120 can be obtained.
- the second resin cover 120 serves as the outer material
- the first resin cover 100 serves as the lining.
- the resin cover suture portion 101 is exposed as a joint portion, and the electromagnetic wave blocking net suture portion 111 is located in the first and second resin covers 100 and 120.
- the electromagnetic wave blocking nets are electrically connected to each other at the joint on sewing, it is possible to suppress an increase in resistance at the joint and prevent the temperature from becoming high even when an induced current flows. ..
- the electromagnetic wave blocking nets 110 of the plurality of elements SA and SB to be sewn are sewn together with the overlapping first resin cover 100, the electromagnetic wave blocking net 110 and the resin covers 100 and 120 are sewn in advance. It does not need to be sewn and can be easily manufactured.
- the electromagnetic wave blocking nets 110 of the plurality of elements SA and SB to be sewn are electrically connected to each other at the joint on sewing, and a sewing method other than the above embodiment may be used. ..
- a plurality of elements to be sewn SA and SB having an edge portion of the electromagnetic wave blocking net 110 provided so as to extend from the edge edge of the first resin cover 100 are prepared, and the first resin cover 100 The surfaces are overlapped so as to be in contact with each other, and the edge portions of the first resin cover 100 are sewn together, and the edge portions of the electromagnetic wave blocking net 110 are sewn together to join the resin cover suture portions 101. It may be developed in the left-right direction of the paper surface centering on the portion and sewn in the same manner as described above.
- the portion such as the sleeve 28 is one of the outer material and the lining (the outer material in the figure), for example, a rectangular first resin cover 100. It is formed in a tubular shape by suturing the edge portions of the two opposite sides. Therefore, it is necessary to sew the electromagnetic wave blocking nets 110 so as to be electrically connected to each other even at the joints of the sleeves 28.
- the resin covers are made by suturing the edge portions of the two sides in a curved state so that the edge portions of the surface of the first resin cover 100 are in contact with each other.
- the suture portion 101 is formed.
- the electromagnetic wave blocking net 110 is superposed around the back surface of the first resin cover 100, and the edge portions of the electromagnetic wave blocking net 110 are placed on one of the resin cover suture portions 101. Arrange so that they overlap on the outer side surface side. Then, for example, at a position 5 mm from the edge of the first resin cover 100, the edge portions of the electromagnetic wave blocking net 110 are sewn together with the overlapping first resin cover 100, and the electromagnetic wave blocking net suture portion is sewn together. Form 111. As a result, the end edges of the element to be sewn including the electromagnetic wave blocking net 110 and the first resin cover 100 are sewn together to form a tubular body.
- the front and back of the sutured element are turned inside out so that the surface of the first resin cover 100 becomes the outer peripheral surface.
- the outer material or the other side of the lining (lining in the figure) is formed into a tubular shape by suturing the edge portions of the two opposite sides of the rectangular second resin cover 120. Keep it.
- the first resin cover 100 and the second resin cover 120 are sewn together at the longitudinal end to form the sleeve 28, and the first resin cover 100 and the second resin cover 120 are formed.
- the resin cover suture portions 101 of the first and second resin covers 100 and 120 serve as joint portions and are exposed on the front and back surfaces, respectively, and the electromagnetic wave blocking net suture portion 111 is the first and second resin covers. It is located within 100 and 120.
- the electromagnetic wave blocking nets are electrically connected to each other, so that the resistance does not increase at the joint, and the temperature rises even when an induced current flows. It can be prevented from becoming.
- the electromagnetic wave protective device 20 for the chest and abdomen can shield the implantable medical device such as a cardiac pacemaker and the capsule endoscope from the RF pulse. It can be used other than during MRI examination. Since electromagnetic waves are not visible, it is generally unknown where they are generated, but by wearing the electromagnetic wave protective device 20 for the chest and abdomen, patients with implantable medical devices such as cardiac pacemakers and inside capsules Patients undergoing endoscopy will be able to work regardless of facility, building, or location.
- the electromagnetic wave protective device of the present invention is useful as an examination gown at the time of MRI examination or capsule endoscopy, and is also useful at work of a patient having an implantable medical device such as a cardiac pacemaker embedded in it. Is.
- Electromagnetic wave blocking net 2 Resin cover 10 Conductive fiber 20 Chest / abdomen electromagnetic wave protector 30 Lower abdomen electromagnetic wave protector 40 Hand / foot / finger electromagnetic wave protector 50 Neck electromagnetic wave protector 60 Body / abdomen electromagnetic wave Protective equipment
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Abstract
Description
また、指輪やアクセサリー、体内に埋め込まれている非磁性金属(金属ステント・金属ワイヤー・人工関節等)の発熱、入れ墨などの染料に含まれる金属成分の発熱や変色を防止するため電磁波遮蔽する必要がある。
さらにMRIのガントリ、コイル、ケーブルと手の接触や、身体と腕によるループができた場合の誘導電流による火傷を予防するため電磁遮蔽する必要がある。
他に、マイクロ波温熱治療器の電磁波が生殖器官にも影響を与えるおそれがあるため、下腹部を遮蔽する必要がある。
上記の人体への電磁波による影響予防以外に、MRI撮影時にRFパルスを遮蔽することにより折り返しアーチファクト(反射による映り込み)を抑制することができる。
(1)身体の部位を電磁波から遮蔽するために、前記部位に装着する電磁波防護具であって、
導電性繊維からなるメッシュ状で、前記部位の外形に対応する形状の電磁波遮断ネットと、
前記電磁波遮断ネットを包囲する樹脂製カバーと、
を備えることを特徴とする電磁波防護具。
(2)装着した際に、前記部位と前記樹脂製カバーとの間の隙間を閉鎖するための閉鎖手段を備えることを特徴とする上記(1)記載の電磁波防護具。
(3)前記樹脂製カバーは、表地または裏地の一方となる第1の樹脂製カバーと、表地または裏地の他方となる第2の樹脂製カバーと、を備え、
前記電磁波遮断ネットと、前記第1の樹脂製カバーとを備える被縫合要素を、複数隣接して縫合してなり、かつ、
隣接する前記第1の樹脂製カバーの端縁部同士が重なった重なり部分に、前記第1の樹脂製カバー同士が縫合している樹脂製カバー縫合部と、隣接する前記電磁波遮断ネットの端縁部同士が縫合している電磁波遮断ネット縫合部と、を有するとともに、
前記樹脂製カバー縫合部が接合部となって露出しており、前記電磁波遮断ネット縫合部が、前記第1及び第2の樹脂製カバー内に位置していることを特徴とする上記(1)または(2)記載の電磁波防護具。
(4)前記電磁波遮断ネットと、前記第1の樹脂製カバーとを備える被縫合要素の端縁部同士を縫合して筒状体に形成されてなり、かつ、
前記筒状体は、前記第1の樹脂製カバーの端縁部同士が重なった重なり部分に、前記第1の樹脂製カバー同士が縫合している樹脂製カバー縫合部と、前記電磁波遮断ネットの端縁部同士が縫合している電磁波遮断ネット縫合部と、を有するとともに、
前記樹脂製カバー縫合部が接合部となって露出しており、前記電磁波遮断ネット縫合部が、前記第1及び第2の樹脂製カバー内に位置していることを特徴とする上記(3)記載の電磁波防護具。
(5)前記樹脂製カバーは、表地または裏地の一方となる第1の樹脂製カバーと、表地または裏地の他方となる第2の樹脂製カバーと、を備え、
前記電磁波遮断ネットと、前記第1の樹脂製カバーとを備える被縫合要素の端縁部同士を縫合して筒状体に形成されてなり、かつ、
前記筒状体は、前記第1の樹脂製カバーの端縁部同士が重なった重なり部分に、前記第1の樹脂製カバー同士が縫合している樹脂製カバー縫合部と、前記電磁波遮断ネットの端縁部同士が縫合している電磁波遮断ネット縫合部と、を有するとともに、
前記樹脂製カバー縫合部が接合部となって露出しており、前記電磁波遮断ネット縫合部が、前記第1及び第2の樹脂製カバー内に位置していることを特徴とする上記(1)または(2)記載の電磁波防護具。
(6)前記電磁波遮断ネット縫合部は、前記第1の樹脂製カバーと共に前記電磁波遮断ネット同士を縫合することを特徴とする上記(3)~(5)の何れかに記載の電磁波防護具。
(7)前記電磁波の入射方向に対して垂直面にループ部分を形成しない形状であることを特徴とする上記(1)~(6)の何れかに記載の電磁波防護具。
(8)MRI検査の患者用であることを特徴とする上記(1)~(7)の何れかに記載の電磁波防護具。
(9)心臓ペースメーカーを使用している患者用であることを特徴とする上記(1)~(7)の何れかに記載の電磁波防護具。
(10)カプセル内視鏡検査の患者用であることを特徴とする上記(1)~(7)の何れかに記載の電磁波防護具。
(11)マイクロ波温熱治療の患者用であることを特徴とする上記(1)~(7)の何れかに記載の電磁波防護具。
さらに、頭部MRI撮影時に胸部のRFパルスを遮蔽することにより、胸部の折り返しアーチファクト(反射による映り込み)を抑制することができる。
非磁性金属指輪(指輪が外せない場合は特に必要)の発熱、刺青などの染料に含まれる金属成分の発熱や変色を、電磁波を遮蔽することで予防する。
患者は、緊急連絡用エアポンプ式ブザーを握り、MRI検査中に体調不良を起こした時に、外部の検査員に報知するようになっており、球状のエアポンプ式ブザーを握った際にできる指のループに誘導電流が流れ火傷をするおそれがあるので、手や指を遮蔽する場合は、緊急連絡用ブザーを握った状態で遮蔽できる構造とする。
頸部用電磁波防護具は主に胸部・腹部用電磁波防護具と併用して使われ、胸部・腹部用電磁波防護具だけでは電磁波を遮蔽できない首回りの入れ墨や、頸部に埋め込められている非磁性金属の発熱を予防し、頭部MRI撮影時に頸部と胸部のRFパルスを遮蔽することにより、頸部と胸部の折り返しアーチファクト(反射による映り込み)を抑制することができる。
また、右足を拡大造影したい場合は左足に電磁波防護具を巻いて左足の折り返しアーチファクトを抑制することができ、肩の拡大造影をしたい場合は肘から下に電磁防護具を巻いて腕の折り返しアーチファクトを抑制することができる。
また、樹脂製カバー縫合部101が接合部となって露出し、電磁波遮断ネット縫合部111が、第1及び第2の樹脂製カバー100、120内に位置する。
例えば、第1の樹脂製カバー100の端縁から延在するように電磁波遮断ネット110の端縁部を設けた、複数の被縫合要素SA,SBを用意し、第1の樹脂製カバー100の表面同士が接触するようにして重ね合せ、第1の樹脂製カバー100の端縁部同士を縫合するとともに、電磁波遮断ネット110の端縁部同士を縫製して、樹脂製カバー縫合部101の接合部を中心にして紙面左右方向に展開し、上記と同様に縫製してもよい。
また、第1及び第2の樹脂製カバー100、120の樹脂製カバー縫合部101が接合部となって表裏にそれぞれ露出し、電磁波遮断ネット縫合部111が、第1及び第2の樹脂製カバー100、120内に位置する。
2 樹脂製カバー
10 導電性繊維
20 胸部・腹部用電磁波防護具
30 下腹部用電磁波防護具
40 手・足・指用電磁波防護具
50 頸部用電磁波防護具
60 胴・腹部用電磁波防護具
Claims (11)
- 身体の部位を電磁波から遮蔽するために、前記部位に装着する電磁波防護具であって、
導電性繊維からなるメッシュ状で、前記部位の外形に対応する形状の電磁波遮断ネットと、
前記電磁波遮断ネットを包囲する樹脂製カバーと、
を備えることを特徴とする電磁波防護具。 - 装着した際に、前記部位と前記樹脂製カバーとの間の隙間を閉鎖するための閉鎖手段を備えることを特徴とする請求項1記載の電磁波防護具。
- 前記樹脂製カバーは、表地または裏地の一方となる第1の樹脂製カバーと、表地または裏地の他方となる第2の樹脂製カバーと、を備え、
前記電磁波遮断ネットと、前記第1の樹脂製カバーとを備える被縫合要素を、複数隣接して縫合してなり、かつ、
隣接する前記第1の樹脂製カバーの端縁部同士が重なった重なり部分に、前記第1の樹脂製カバー同士が縫合している樹脂製カバー縫合部と、隣接する前記電磁波遮断ネットの端縁部同士が縫合している電磁波遮断ネット縫合部と、を有するとともに、
前記樹脂製カバー縫合部が接合部となって露出しており、前記電磁波遮断ネット縫合部が、前記第1及び第2の樹脂製カバー内に位置していることを特徴とする請求項1または2記載の電磁波防護具。 - 前記電磁波遮断ネットと、前記第1の樹脂製カバーとを備える被縫合要素の端縁部同士を縫合して筒状体に形成されてなり、かつ、
前記筒状体は、前記第1の樹脂製カバーの端縁部同士が重なった重なり部分に、前記第1の樹脂製カバー同士が縫合している樹脂製カバー縫合部と、前記電磁波遮断ネットの端縁部同士が縫合している電磁波遮断ネット縫合部と、を有するとともに、
前記樹脂製カバー縫合部が接合部となって露出しており、前記電磁波遮断ネット縫合部が、前記第1及び第2の樹脂製カバー内に位置していることを特徴とする請求項3記載の電磁波防護具。 - 前記樹脂製カバーは、表地または裏地の一方となる第1の樹脂製カバーと、表地または裏地の他方となる第2の樹脂製カバーと、を備え、
前記電磁波遮断ネットと、前記第1の樹脂製カバーとを備える被縫合要素の端縁部同士を縫合して筒状体に形成されてなり、かつ、
前記筒状体は、前記第1の樹脂製カバーの端縁部同士が重なった重なり部分に、前記第1の樹脂製カバー同士が縫合している樹脂製カバー縫合部と、前記電磁波遮断ネットの端縁部同士が縫合している電磁波遮断ネット縫合部と、を有するとともに、
前記樹脂製カバー縫合部が接合部となって露出しており、前記電磁波遮断ネット縫合部が、前記第1及び第2の樹脂製カバー内に位置していることを特徴とする請求項1または2記載の電磁波防護具。 - 前記電磁波遮断ネット縫合部は、前記第1の樹脂製カバーと共に前記電磁波遮断ネット同士を縫合することを特徴とする請求項3~5の何れか1項に記載の電磁波防護具。
- 前記電磁波の入射方向に対して垂直面にループ部分を形成しない形状であることを特徴とする請求項1~6の何れか1項に記載の電磁波防護具。
- MRI検査の患者用であることを特徴とする請求項1~7の何れか1項に記載の電磁波防護具。
- 心臓ペースメーカーを使用している患者用であることを特徴とする請求項1~7の何れか1項に記載の電磁波防護具。
- カプセル内視鏡検査の患者用であることを特徴とする請求項1~7の何れか1項に記載の電磁波防護具。
- マイクロ波温熱治療の患者用であることを特徴とする請求項1~7の何れか1項に記載の電磁波防護具。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2019/026889 WO2021005664A1 (ja) | 2019-07-05 | 2019-07-05 | 電磁波防護具 |
| US17/617,736 US20220254533A1 (en) | 2019-07-05 | 2019-07-05 | Electromagnetic wave protector |
| EP19937126.1A EP3995024A4 (en) | 2019-07-05 | 2019-07-05 | PROTECTION AGAINST ELECTROMAGNETIC WAVES |
| JP2020537259A JP6799351B1 (ja) | 2019-07-05 | 2019-07-05 | 電磁波防護具及びその製造方法 |
| CN201980097379.3A CN114007455A (zh) | 2019-07-05 | 2019-07-05 | 电磁波防护具 |
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| PCT/JP2019/026889 WO2021005664A1 (ja) | 2019-07-05 | 2019-07-05 | 電磁波防護具 |
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| US (1) | US20220254533A1 (ja) |
| EP (1) | EP3995024A4 (ja) |
| JP (1) | JP6799351B1 (ja) |
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| WO (1) | WO2021005664A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230049882A (ko) * | 2021-10-07 | 2023-04-14 | 영 학 김 | 의료 가운, 그 제조장치 및 제조방법 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3054612U (ja) * | 1998-06-02 | 1998-12-08 | 帝人株式会社 | 電磁波シールド用衣服 |
| JPH111874A (ja) * | 1997-06-09 | 1999-01-06 | Achilles Corp | 電磁波遮蔽性衣料材 |
| JP2001131811A (ja) * | 1999-11-02 | 2001-05-15 | Gunze Ltd | 電磁波シールド衣服 |
| JP2004313582A (ja) * | 2003-04-18 | 2004-11-11 | Minato Ikagaku Kk | マイクロ波治療器用照射器 |
| JP2007299906A (ja) * | 2006-04-28 | 2007-11-15 | Nitto Denko Corp | シート状電磁波シールド性構造体を具備する物品。 |
| JP4210326B2 (ja) | 2004-01-05 | 2009-01-14 | メディカル・エイド株式会社 | 電磁波遮断ネットを用いたインナーウエア |
| JP2016182215A (ja) * | 2015-03-25 | 2016-10-20 | メディカル・エイド株式会社 | カプセル内視鏡用電磁波防護服及びその製造方法 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3996620A (en) * | 1975-03-28 | 1976-12-14 | Maine Gayle J | Radiation shield apron construction |
| JPS58160209U (ja) * | 1982-04-15 | 1983-10-25 | ミドリ安全工業株式会社 | 静電気帯電防止用の被服 |
| JPS63120399U (ja) * | 1987-01-29 | 1988-08-04 | ||
| WO1990009473A1 (en) * | 1989-02-15 | 1990-08-23 | Finex Handels Gmbh | Textile fabric shielding electromagnetic radiation, and clothing made thereof |
| FR2745690B1 (fr) * | 1996-03-08 | 1998-04-30 | Egis S A R L | Vetement de protection contre les rayonnements electromagnetiques non ionisants |
| US5715536A (en) * | 1996-12-26 | 1998-02-10 | Banks; David L. | Static electricity dissipation garment |
| US6855883B1 (en) * | 1997-02-11 | 2005-02-15 | Kazu Investment Co., Ltd. | Electromagnetic wave blocking material and electromagnetic wave blocking case |
| DE19743389C2 (de) * | 1997-09-30 | 2000-11-23 | Univ Dresden Tech | Schutzanzug für Arbeiten unter Hochspannung |
| WO2001037286A1 (en) * | 1999-11-17 | 2001-05-25 | Amiram Katz | Protective gear for individuals with implanted electronic devices and others exposed to hazardous electromagnetic radiation |
| JP4007994B2 (ja) * | 2005-03-10 | 2007-11-14 | ジャパンゴアテックス株式会社 | 繊維製品 |
| JP2009167538A (ja) * | 2008-01-11 | 2009-07-30 | Toray Ind Inc | 導電性織物の縫合方法およびその方法を用いてなる導電性衣服 |
| JP2011084822A (ja) * | 2009-10-13 | 2011-04-28 | Fujikura Ltd | 布帛 |
| WO2017039032A1 (ko) * | 2015-09-02 | 2017-03-09 | 윈엔윈(주) | 전자파 차폐제 쉬트 및 이의 제조방법 |
| JP6288623B2 (ja) * | 2016-06-03 | 2018-03-07 | パナソニックIpマネジメント株式会社 | 繊維製品及び金属繊維 |
| JP2019210564A (ja) * | 2018-06-01 | 2019-12-12 | メディカル・エイド株式会社 | 電磁波防護具 |
| US20200219632A1 (en) * | 2019-01-04 | 2020-07-09 | Salini NAIDU | Fabric for shielding a wearer from radiation and garment thereof |
-
2019
- 2019-07-05 CN CN201980097379.3A patent/CN114007455A/zh active Pending
- 2019-07-05 US US17/617,736 patent/US20220254533A1/en not_active Abandoned
- 2019-07-05 EP EP19937126.1A patent/EP3995024A4/en not_active Withdrawn
- 2019-07-05 JP JP2020537259A patent/JP6799351B1/ja active Active
- 2019-07-05 WO PCT/JP2019/026889 patent/WO2021005664A1/ja not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH111874A (ja) * | 1997-06-09 | 1999-01-06 | Achilles Corp | 電磁波遮蔽性衣料材 |
| JP3054612U (ja) * | 1998-06-02 | 1998-12-08 | 帝人株式会社 | 電磁波シールド用衣服 |
| JP2001131811A (ja) * | 1999-11-02 | 2001-05-15 | Gunze Ltd | 電磁波シールド衣服 |
| JP2004313582A (ja) * | 2003-04-18 | 2004-11-11 | Minato Ikagaku Kk | マイクロ波治療器用照射器 |
| JP4210326B2 (ja) | 2004-01-05 | 2009-01-14 | メディカル・エイド株式会社 | 電磁波遮断ネットを用いたインナーウエア |
| JP2007299906A (ja) * | 2006-04-28 | 2007-11-15 | Nitto Denko Corp | シート状電磁波シールド性構造体を具備する物品。 |
| JP2016182215A (ja) * | 2015-03-25 | 2016-10-20 | メディカル・エイド株式会社 | カプセル内視鏡用電磁波防護服及びその製造方法 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230049882A (ko) * | 2021-10-07 | 2023-04-14 | 영 학 김 | 의료 가운, 그 제조장치 및 제조방법 |
| KR102660847B1 (ko) * | 2021-10-07 | 2024-04-26 | 영 학 김 | 의료 가운, 그 제조장치 및 제조방법 |
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| JPWO2021005664A1 (ja) | 2021-09-13 |
| US20220254533A1 (en) | 2022-08-11 |
| EP3995024A4 (en) | 2023-01-18 |
| CN114007455A (zh) | 2022-02-01 |
| JP6799351B1 (ja) | 2020-12-16 |
| EP3995024A1 (en) | 2022-05-11 |
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