JP2850954B2 - Pacemaker protection sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pacemaker protection sheet for protecting a cardiac pacemaker from electromagnetic waves caused by a portable telephone which has recently become widespread.

[0002]

2. Description of the Related Art In recent years, the influence of electromagnetic waves on medical equipment that has been developed has been attracting attention in recent years. A particular problem is an implantable pacemaker that is directly implanted in patients with poor heart function. That is, recently, the number of wearers of the cardiac pacemaker has been increasing, and the chances of wearers being located in various places such as in urban areas and in crowds of vehicles are increasing. On the other hand, the number of mobile phones has rapidly increased, and mobile phones are being used and used in various places. For this reason, there is a possibility that the electromagnetic waves emitted from the mobile phone may affect the pacemaker unexpectedly. As a provisional guideline regarding the use of mobile phones, pacemakers should be carried and used at a distance of at least 22 cm from a pacemaker. However, in a crowded place such as a crowded train where there is no movement, If there is a mobile phone in the inner pocket of the person standing in front of the wearer, it is impossible to keep the distance of 22 cm from the embedded pacemaker in the human body without inevitability, and the electronic device of the pacemaker is transmitted by electromagnetic waves from the mobile phone. And a program corresponding to the set ventricular contraction pace is changed, resulting in malfunction. In this case, the mobile phone has a built-in high-power power supply, and emits electromagnetic waves when the power is turned on even during a call, which is a problem.

[0003] As a protective article for protecting a pacemaker from such electromagnetic waves, for example, Japanese Patent Laid-Open No. 22140/1990.
The pacemaker protective clothing of JP-A-2 is also known.

[0004]

However, the above-mentioned pacemaker protective clothing is a clothing type formed by cutting a woven fabric using an amorphous alloy fiber into a clothing shape, and has problems in flexibility, air permeability, weight and the like. At present, the biggest problem is that it is expensive, so it is not widely used at present. Particularly in summer, it is hot and difficult to wear at all times, causing unexpected obstacles (malfunction of the pacemaker).
That is, conventionally, this type of magnetic shield shields magnetic and electromagnetic waves, and is not intended for high-frequency electromagnetic waves as in mobile phones, and has not been easily spread.

[0005] In view of the above circumstances, the present invention is mainly directed to an electromagnetic wave shield for a rapidly increasing mobile phone.
In the case of pacemakers that are buried in the human body, which is essentially a conductor, it has been found that the affected area of electromagnetic waves received from mobile phones is limited to the vicinity of the buried position. It is an object of the present invention to provide a simplified pacemaker protection sheet that solves the above-mentioned problems by adopting the used sheet ground.

[0006]

According to the present invention, there is provided an electromagnetic wave shielding fabric formed of silver-plated nylon fiber and having a shape larger than that of a pacemaker embedded at least in a human body, and is adhered to one surface of the electromagnetic wave shielding fabric. The adhesive surface is applied to the protective sheet body, the surface of the adhesive is bonded to a predetermined size of the backing sheet to form a protective sheet unit, and the skin surface or clothing closest to the pacemaker in which the protective sheet body peeled from the separating sheet is embedded. It is directly attached to the surface.

As described above, in the pacemaker protection sheet, the main body for shielding the electromagnetic wave is made of silver-plated nylon fiber using silver, which is the most conductive metal among metals, and an adhesive is applied to one side of the woven or knitted electromagnetic wave shielding cloth. Since the protective sheet body is applied and it is a sheet unit that is temporarily bonded to the release liner, the protective sheet body is peeled off from the release liner when going out, etc., and in this state the pacemaker with the adhesive surface embedded in the human body The protective sheet body may be directly adhered to the nearest skin surface to cover the pacemaker, or this protective sheet body may be adhered to the back surface of the clothes (underwear, etc.) to be the closest to the pacemaker to cover the pacemaker. .

That is, since this protective sheet is a soft sheet in which an adhesive is applied to a thin cloth made of woven or knitted fabric,
It can be freely attached to the skin directly as a bandage or to the clothing side, and there is no discomfort during use.
Of course, the adhesive to be applied to the protective sheet main body uses a commonly used adhesive such as a haptic or a cut bun, and it is possible to repeatedly use peeling and sticking as a bandage a plurality of times.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The following is a description of the pacemaker protection sheet of the present invention, with reference to the drawings of the embodiment.

[0010] 1 is a synthetic fiber that can be plated well,
The surface of the material of the fine denier nylon fiber 2 is chemically plated with silver a, which has the highest conductivity in a metal, to form a silver-plated nylon fiber 3.
An electromagnetic wave shielding cloth formed by weaving or knitting such as mesh knitting at least in an area larger than the pacemaker A embedded in the heart of the human body. An adhesive 4 is applied to one surface of the electromagnetic wave shielding cloth 1 by appropriate means for protection. When the sheet body 5 is formed, and the adhesive 4 surface of the protection sheet body 5 is adhered to a known peeling backing sheet 6 cut to a predetermined size, a protection sheet unit 7 ′ is obtained. However, the silver plating on the fine denier nylon fiber 2 is a structure in which pure silver is used and a thin silver layer having a thickness of about 0.2 μm is arranged only on the surface of the fiber. The pressure-sensitive adhesive 4 is a pressure-sensitive adhesive commonly used for a haptic, a cut bun, or the like, and is, for example, a pressure-sensitive adhesive made of an acrylic resin.

Now, the operation will be described. First, when the pacemaker protective sheet 7 is used, for example, as shown in FIG. 5, when the pacemaker protective sheet 7 is attached directly to the skin surface of the human body B, it is attached to one side of the pacemaker protective sheet 7. Protective sheet main body 5 of a fabric configuration in which the peeling backing sheet 6 made of
May be made to face the nearest position (directly above) of the pacemaker A embedded in the human body B with one side of the adhesive 4 as an inner side, and simply adhere to the skin surface as a bandage.

The size of the protective sheet main body 5 is slightly larger than the size of the protective sheet main body so as to cover at least the pacemaker A. The best silver-plated nylon fiber 3 as an electromagnetic shielding material
In addition, the electromagnetic wave is shielded effectively because it is located closest to the body, the electromagnetic wave does not reach the pacemaker A embedded in the human body, the driving of the pacemaker A is not affected, and a malfunction does not occur.

Further, since the protective sheet main body 5 may be stuck directly to the skin surface, when there is no feeling of wearing, and when returning from outside, etc., it may be simply peeled off from the skin surface. The peeled protective sheet main body 5 is necessary, and if it is attached back to the original peeling backing paper 6, it can be reused again. Further, as the pressure-sensitive adhesive 4, a material which does not cause rash on the skin surface, such as an acrylic resin pressure-sensitive adhesive, is used. The number of times of attachment to the skin surface can be repeated several times until the adhesiveness of the adhesive 4 decreases.

FIG. 6 shows another embodiment in which the protective sheet body is attached to clothes. That is, the protective sheet main body 5 peeled off from the release liner 6 is pressed against the underside of the underwear C such as a shirt at a position closest to the embedded pacemaker A at the time of wearing, that is, the predetermined position with the underwear C turned upside down. Stick it. Thereafter, if the undergarment C is turned over and worn like ordinary underwear, the protective sheet body 5 faces the skin in front of the embedded pacemaker A. The electromagnetic wave does not reach the pacemaker A because it is shielded by the nylon fiber 3. Of course, since the protective sheet body 5 is partially arranged to have a size enough to cover the pacemaker A, even when wearing underwear, there is no trouble such as stuffiness.

FIG. 7 is a sectional view showing another embodiment of the protective sheet body. In this case, the structure of the electromagnetic wave shielding fabric 1 is an electromagnetic wave shielding fabric 1 ′ having a double knitting structure in which the surface layer is silver-plated nylon fiber 3 and the back surface layer is cotton yarn 8. Agent 4 is applied to form protective sheet body 5. When sticking the protective sheet body 5 of this type, since the cotton knitted ground faces the skin surface,
It has a soft feel to the skin surface and is suitable for elderly people with weak skin.

FIG. 8 shows the electromagnetic wave attenuation rate of a sample of the electromagnetic wave shielding cloth knitted using the silver-plated nylon fiber. That is, FIG. 8 shows an electromagnetic shield characteristic curve (based on the KEC test method). Here, the vertical axis of the graph indicates the degree of attenuation, and the horizontal axis indicates the measurement frequency. The frequency used for mobile phones is 800 MHz. According to this, it has an attenuation rate of 40 dB and an electromagnetic wave of 99 dB.
It can be seen that the percentage is cut.

[0017]

As described above, the pacemaker protection sheet of the present invention is made of an electromagnetic wave shielding cloth woven or knitted with silver-plated nylon fiber, which is an excellent electromagnetic wave shielding material. Since the adhesive surface was bonded to the release liner to form a protective sheet unit,
In use, it is easy to handle simply by peeling off the protective sheet main body from the peeling backing sheet and sticking it directly to the skin surface or clothing surface closest to the pacemaker's embedding, and it is effective for mobile phones because it is close to the pacemaker EMI can be shielded, and the malfunction of the pacemaker caused by the electromagnetic waves can be eliminated.

Further, unlike the conventional clothing structure, the pacemaker protection sheet of the present invention may be a single sheet with an adhesive surface having a size enough to simply cover the pacemaker, and is optimal as a medical aid and lightweight. Because it is a partial installation, there is no stuffiness even in summer, etc., and there is no uncomfortable feeling. Furthermore, because of the seat configuration, fine-grained use according to the place where the pacemaker wearer is buried can be performed, and from this point, a simple and reliable electromagnetic wave shielding effect can be obtained for each pacemaker. Of course, since the protective sheet body is made of a woven or knitted fabric, it is easy to manufacture, is provided at a low cost and is lightweight, and can be easily worn when going out. Even so, there is an effect that the pacemaker is not affected by the electromagnetic wave and a safe pacemaker can be used.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a pacemaker protection sheet of the present invention.

FIG. 2 is a sectional view of the same.

3A and 3B are explanatory views of silver-plated nylon fibers, in which FIG. 3A is a side view showing the relationship between silver plating and nylon fibers, and FIG.

FIG. 4 is a plan view of an electromagnetic wave shielding cloth.

FIG. 5 is an explanatory view of a use state in which a protective sheet main body is directly stuck to a skin surface at a pacemaker embedding position.

FIG. 6 is an explanatory view of another use state in which the protective sheet main body is adhered on the clothes side.

FIG. 7 is a sectional view showing another embodiment of the protective sheet body.

FIG. 8 is a graph showing electromagnetic wave shielding characteristics using a protective sheet main body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electromagnetic wave shielding cloth 2 Nylon fiber 3 Silver plated nylon fiber 4 Adhesive 5 Protective sheet main body 6 Peeling backing 7 'Protective sheet unit a Silver

────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI // A41D 1/04 A41D 1/04 Z H04B 7/26 H04B 7/26 Z (56) References JP-A-2-221402 ( JP, A) JP-A-1-148274 (JP, A) JP-A-53-83369 (JP, A) JP-A-7-110352 (JP, A) Full-open 5-74548 (JP, U) Full-open Hei 1-144054 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A61N 1/16 A61N 1/362

Claims (1)

(57) [Claims] 1. A protective sheet body formed by forming an electromagnetic wave shielding material woven or knitted with silver-plated nylon fiber and having a shape larger than at least a pacemaker embedded in a human body, and applying an adhesive to one surface of the electromagnetic wave shielding material. The adhesive surface is to be bonded to a predetermined size of the release sheet as a protective sheet unit, and the protective sheet body peeled from the release sheet is directly attached to the skin or clothing surface which is the closest position to the pacemaker in which the embedded protective sheet body is embedded. Characterized pacemaker protection sheet.