JP3002486U - Nurse call intercom - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent nosocomial infections that use intercom for nurse calls as a medium. [Constitution] The case 1, call button 2 and cord 5 of the intercom for nurse call are made of resin mixed with an antibacterial agent. Zeolite solid particles carrying ions of a metal selected from silver, copper and zinc are used as the antibacterial agent. Such a resin composition can be obtained from E. coli, MRSA
It has an excellent antibacterial action against pathogenic bacteria that cause nosocomial infections such as.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a nurse call intercom provided in each bed of a hospital room, and particularly to a nurse call intercom having antibacterial properties.

[0002]

[Prior art]

Conventionally, nurse call intercoms have been widely used to communicate between a nurse center and each hospital room in a hospital. As shown in FIG. 2, this nurse call intercom is composed of a nurse call base unit M provided at a nurse center and a plurality of handset units HS ₁ , HS ₂ ... HS _n provided at the bed of each hospital room. When the patient presses the call button 2 provided on the nurse call slave, the corresponding LED 14 of the nurse call master M lights up. As a result, when the corresponding channel selection switch 15 is pressed, the master unit M and the slave unit respectively receive the microphones 3 and 17 and the speakers 4 and 18 via the master unit interface 10, the call interface 13 and the call unit 16. You can make a call by calling. Such a nurse call slave machine may be operated not only by the patient itself but also by a nurse or a nurse present in the bed.

By the way, in recent years, infection in hospitals has become a problem. This is because the nurses and equipment that come into contact with the carrier serve as the medium and infect other patients, and the intercom slave can also serve as the medium. For this reason, disinfection of beds, bedding, and hand washing of nurses are being encouraged.However, disinfection may be difficult depending on the equipment provided in the hospital, and especially nurse call cordless handsets are frequently used. It is virtually impossible to disinfect once in a while.

On the other hand, the components of the electric washing machine are blended with 2- (4-thiazolyl) -benzimidazole for the purpose of preventing the growth of mold and bacteria, and facing the shaving storage space of a shaving machine. There is proposed a coating layer containing an inorganic antibacterial agent (Japanese Patent Laid-Open No. 3-112594 and Japanese Utility Model Laid-Open No. 3-49766).

[0005]

[Issues to be solved by the device]

 However, none of these proposals aims to prevent nosocomial infections, and in the former, an antibacterial agent is selected and blended based on the usage conditions of the washing machine. Also, since the latter one is provided as a coating layer, it is difficult to apply it to a nurse call handset in which the entire device can be a medium for bacteria.

The present invention has been made in view of the above-mentioned conventional problems, and the member constituting the intercom for nurse call provided for each bed is made antibacterial, and effective for nosocomial infection such as MR SA in a hospital. The purpose is to provide an intercom for nurse calls that can be prevented. Furthermore, the present invention uses an antibacterial agent that is particularly effective against infectious bacteria in hospitals to prevent bacterial growth in nurse call intercoms, eliminates the need for frequent disinfection, and provides a hygienic environment. The purpose is to do.

[0007]

[Means for Solving the Problems]

 The nurse call intercom of the present invention that achieves such an object includes a case that is attached to cover a substrate on which electronic components are mounted, an operation button provided on the surface of the case, and a cable connected to the electronic components. At least one of the case, the operation button, and the cord is made of a resin containing an antibacterial agent. Suitably, the case, the operation button and the cord are all composed of a resin containing an antibacterial agent, and the antibacterial agent uses solid zeolite particles carrying ions of a metal selected from silver, copper and zinc. . The antibacterial agent is contained in an amount of 0.01 to 10% by weight based on the resin.

[0008]

[Action]

 By forming the part that the patient or nurse touches with the resin containing antibacterial agent, it is possible to prevent bacterial growth and prevent infections mediated by the nurse call slave. In particular, by using zeolite solid particles carrying an ion of a metal selected from silver, copper and zinc as an antibacterial agent, it is possible to easily mix them with a resin and obtain a strong antibacterial effect. The non-halogenated organic polymer does not deteriorate the resin even when an antibacterial agent is added. In addition, the antibacterial action is particularly excellent when the amount of the antibacterial agent is 0.01 to 10% by weight.

[0009]

【Example】

An embodiment of a nurse call intercom of the present invention will be described below with reference to the drawings. Figure 2 is a circuit diagram of the nurse call intercom to which the present invention is applied, the inter Hon and master unit M provided in the nurse center, the common line (cable) L ₁ in the master unit M and connected handset HS ₁ , HS ₂ ... HS _n, and each child device is provided in the bed of each hospital room. The master unit M is provided with a call communication unit 16 to which a microphone 17 and a speaker 18 are connected, a tuning switch 15 for calling each slave unit, and an indicator lamp (LED) 14 for displaying a communication state with the slave unit. Further, a call communication interface section 13 for controlling these, a channel selection switch interface section 12, a display LED interface section 11 and a master unit interface section 10 are provided.

On the other hand, the handset HS ₁ includes a call button 2, a microphone 3, and a speaker 4 for calling the base unit M. When the call button 2 of the child device HS ₁ is pressed to call the parent device M, the display LED 14 corresponding to the child device HS ₁ on the parent device side lights up, and the speaker 18 sounds a ringing tone. When the tuning switch 15 corresponding to the lighted display LED 14 is pressed, the call circuit is closed between the master M and the slave HS _1, and a call becomes possible. The same applies to other slaves, so only the slave HS ₁ will be described below.

In the child device HS ₁ configured as described above, electronic components such as the microphone 3, the speaker 4, the switch and the condenser are formed on a substrate (not shown), and the substrate is covered by the case 1 as shown in FIG. In the case 1, a microphone hole 3a and a speaker hole 4a are formed in a portion corresponding to the microphone 3 and a portion corresponding to the speaker 4, and a call button 2 for operating a switch is attached. A hook 1a is formed on the case 1 to suspend the slave unit near the bed. Further, to the case 1, a cord 5 for connecting the child device HS ₁ is connected to the common line L ₁ with the parent device M.

The case 1 and the call button 2 are made of synthetic resin 6 containing an antibacterial agent. Further, it is preferable that the code 5 is also made of a resin containing an antibacterial agent. The resin forming the case 1 and call button 2 may be any resin that generally forms a plastic molded product, and solid zeolite particles carrying an ion of a metal selected from silver, copper and zinc, which will be described later, as an antibacterial agent. When used, a non-halogenated organic polymer or the like is used.

As the resin constituting the case 1 and the call button 2 of the child device of the present invention, for example, polyethylene, polypropylene, polystyrene, polyamide, polycarbonate, polyacetal, ABS resin, acrylic resin, fluorine resin, polyester, polyurethane is used. Examples thereof include thermoplastic resins such as, and thermosetting resins such as phenol resin, urea resin, melamine resin, epoxy resin, and urethane resin. Examples of the resin that constitutes the cord 5 of the cordless handset of the present invention include thermoplastic resins such as vinyl chloride, polypropylene, and polyamide.

As the antibacterial agent, either an organic antibacterial agent such as 2- (4-thiazolyl) -benzimidazole described above or an inorganic antibacterial agent containing an antibacterial metal can be adopted, but the antibacterial effect is large, and Zeolite solid particles which carry ions of a metal selected from silver, copper and zinc are preferable from the viewpoints of these, because the blending thereof with the resin is easy and the selection range of the resin is wide. Zeolite is an aluminosilicate having a three-dimensionally developed skeleton structure, and can carry silver ions, copper ions or zinc ions by ion exchange. As the zeolite, one having a specific surface area of 150 m ² / g or more and a molar ratio of SiO ₂ / Al ₂ O _{3 in} the constituent components of 14 or less, preferably 11 or less is used. By using such a zeolite, an effective bactericidal action can be achieved. For example, zeolite solid particles having a specific surface area of 150 m ² / g or more and a silica / alumina molar ratio of 14 or less are contained in one or two kinds of silver ion, copper ion and zinc ion in an amount of about 90% or less of the ion exchange capacity. The above can be supported.

Such an antibacterial agent has a strong antibacterial effect against pathogenic bacteria causing nosocomial infections such as Escherichia coli, Pseudomonas aeruginosa, and methicillin-resistant Staphylococcus aureus (MR SA). The antibacterial agent is added in an amount of 0.01 to 10% by weight, preferably 10 to 40% by weight of the resin composition constituting the case. By setting it as such a range, the desired bactericidal effect can be obtained, without affecting the physical property change of the resin composition. The method of addition and mixing with the resin is not particularly limited. For example, there are a method of polymerizing after mixing with a raw material monomer of a resin, a method of polymerizing after mixing with a reaction intermediate, a method of mixing with a polymer at the time of completion of polymerization, a method of mixing with polymer pellets and then molding this. The resin composition may further contain an organic or inorganic pigment, a dye, an inorganic filler, a plasticizer, and the like, in addition to the antibacterial agent, as long as the characteristics thereof are not changed.

In the child device of the present invention configured as described above, since the portion touched by a person is formed of the resin containing the antibacterial agent, the propagation of pathogenic bacteria is suppressed, and the infection using the child device as a medium is effective. Can be prevented. Although the nurse call slave unit is described in the present embodiment, it goes without saying that the present invention can be applied to the case, the operation button and the cord of the handset part of the master unit. In this case, the channel selection switch as the operation button is made of resin containing antibacterial agent.

[0017]

[Effect of device]

 As is clear from the above embodiments, according to the intercom for nurse call of the present invention, since the parts such as the case, operation buttons, cords, etc. that are touched by people are made of the resin containing the antibacterial agent, E. coli, MRSA, etc. By suppressing the propagation of pathogenic bacteria that cause nosocomial infections, it is possible to effectively prevent infections using a child device as a medium. In particular, when zeolite solid particles carrying ions of a metal selected from silver, copper and zinc are used as an antibacterial agent, excellent antibacterial activity is obtained, and the range of resins to be selected is widened. The most suitable resin can be selected for each member.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a nurse call intercom of the present invention.

FIG. 2 is a diagram showing an embodiment of a nurse call intercom to which the present invention is applied.

[Explanation of symbols]

1 ・ ・ Case 2 ・ ・ Call button (operation button) 5 ・ ・ ・ ・ ・ ・ Code 6 ・ ・ ・ ・ ・ ・ Resin M ・ ・ ・ ・ Parent unit HS ₁ , HS ₂・ ・ ・ HS _n・ ・ ・ ・ ・ ・ Slave unit (Intercom for nurse call)

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Tetsuaki Kato 2-18, Jinno-cho, Atsuta-ku, Nagoya, Aichi Aiphone Co., Ltd. (72) Yukio Yamashita 6-5-30 Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. Company (72) Inventor Isamu Sakura 6-5-30 Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Tadahiro Shimazu 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72 ) Inventor Ari Tsune, 2-2-2 Nakanoshima, Kita-ku, Osaka-shi, Osaka Prefecture Nichimen Co., Ltd. (72) Takato Nomi 1-2-2 Umeda, Kita-ku, Osaka-shi, Osaka Prefecture Kanebo Co., Ltd.

Claims (5)

[Scope of utility model registration request] 1. An intercom for nurse call provided in each hospital bed, a case mounted to cover a substrate on which electronic components are mounted, operation buttons provided on the surface of the case, and connected to the electronic components. An intercom for nurse call, comprising: a cord for accommodating the stored cable, wherein at least one of the case, the operation button and the cord is made of a resin containing an antibacterial agent. 2. An intercom for nurse call provided in each hospital bed, comprising a case attached to cover a substrate on which electronic components are mounted, and operation buttons provided on the surface of the case. The operation buttons are
An intercom for nurse call, which is composed of a resin containing an antibacterial agent. 3. An intercom for nurse call provided in each hospital bed, a case attached to cover a substrate on which electronic components are mounted, operation buttons provided on the surface of the case, and connected to the electronic components. An intercom for nurse call, comprising: a cord for storing the stored cable, wherein the cord is made of a resin containing an antibacterial agent. 4. The intercom for nurse call according to any one of claims 1 to 3, wherein the antibacterial agent is zeolite solid particles carrying ions of a metal selected from silver, copper and zinc. 5. The antibacterial agent is added in an amount of 0.01 to 1 in the resin.
The intercom for nurse call according to any one of claims 1 to 4, wherein the intercom is 0% by weight.