JP2012241050A - Antimicrobial case for medical monitor - Google Patents
Antimicrobial case for medical monitor Download PDFInfo
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- JP2012241050A JP2012241050A JP2011110113A JP2011110113A JP2012241050A JP 2012241050 A JP2012241050 A JP 2012241050A JP 2011110113 A JP2011110113 A JP 2011110113A JP 2011110113 A JP2011110113 A JP 2011110113A JP 2012241050 A JP2012241050 A JP 2012241050A
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- 230000000845 anti-microbial effect Effects 0.000 title abstract 2
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 34
- 239000000843 powder Substances 0.000 claims abstract description 34
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 claims abstract description 29
- 229910000165 zinc phosphate Inorganic materials 0.000 claims abstract description 29
- 239000005365 phosphate glass Substances 0.000 claims abstract description 28
- 239000000088 plastic resin Substances 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims description 23
- 229920005989 resin Polymers 0.000 claims description 23
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 12
- 239000004973 liquid crystal related substance Substances 0.000 claims description 12
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 8
- 239000004417 polycarbonate Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 4
- 239000004431 polycarbonate resin Substances 0.000 claims description 4
- 229920005668 polycarbonate resin Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 abstract description 3
- 229920003002 synthetic resin Polymers 0.000 abstract description 3
- 239000004599 antimicrobial Substances 0.000 abstract 1
- 241000894006 Bacteria Species 0.000 description 7
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 241000588724 Escherichia coli Species 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002054 inoculum Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 238000012696 Interfacial polycondensation Methods 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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Abstract
Description
本発明は、医療用モニターケースに関するもので、より詳細には、合成樹脂材質のモニターケースにリン酸亜鉛系ガラスパウダーを添加し、抗菌性を与えた医療用モニターケースに関するものである。 The present invention relates to a medical monitor case. More specifically, the present invention relates to a medical monitor case in which zinc phosphate glass powder is added to a synthetic resin monitor case to give antibacterial properties.
医療分野は、人間の健康と生命を取り扱う重要でかつ敏感な分野であるので、多くの分野の最新技術が試験・応用される技術融合の最前線と言える。新素材と新物質を取り扱う化学・生命分野、手術装備はもちろん、手術用ロボットやカプセル型超小型ロボットを開発する機械分野、各種診断・試験機器などを製造する電気・電子分野、医療のユビキタス環境を先導するＩＴ分野などのように、医療分野に適用される技術にはほぼ限界がないとも言える。 Since the medical field is an important and sensitive field dealing with human health and life, it can be said that it is the forefront of technology fusion where the latest technologies in many fields are tested and applied. Chemical and life fields that handle new materials and new materials, surgical equipment, mechanical fields that develop surgical robots and capsule micro robots, electrical and electronic fields that manufacture various diagnostic and test equipment, and medical ubiquitous environments It can be said that there is almost no limit to the technology applied to the medical field, such as the IT field leading the world.
これらのうち、各種診断・試験機器と密接に関連している電気・電子分野での例を挙げると、患者の疾患状態の診断結果を映像情報で見せるディスプレイ装置が非常に多く使用されている。現在、このようなディスプレイ装置としては、厚さが薄くかつ軽量であるＬＣＤモニターが主に使用されている。 Among these, as an example in the electric / electronic field, which is closely related to various diagnostic / testing equipment, a display device that displays a diagnosis result of a disease state of a patient as video information is very often used. At present, LCD monitors that are thin and lightweight are mainly used as such display devices.
一方、医療現場でディスプレイ装置、すなわち、医療用モニターを使用するときは、使用環境の特殊性を考慮する必要がある。医療的な処置には協業が要求されており、多くの医者や看護婦が比較的限定された空間内で迅速に動くことが頻繁に発生するので、各種医療装備の効率的な空間配置が重要である。特に、医療用モニターで表示される患者の疾患状態の映像情報を正確に判読する必要があるので、医療用モニターは、医療陣の視野に非常に近接した位置に配置されるようになる。 On the other hand, when a display device, that is, a medical monitor is used in a medical field, it is necessary to consider the particularity of the usage environment. Collaboration is required for medical treatment, and many doctors and nurses frequently move quickly in a relatively limited space, so efficient placement of various medical equipment is important It is. In particular, since it is necessary to accurately read the image information of the disease state of the patient displayed on the medical monitor, the medical monitor is arranged at a position very close to the visual field of the medical staff.
医療用モニターのケースは、合成樹脂材質からなるが、医療陣及び患者に近接した環境で使用されるので、その材質に抗菌性を与える必要が要請される。 The case of a medical monitor is made of a synthetic resin material, but since it is used in an environment close to a medical team and a patient, it is required to give the material antibacterial properties.
本発明の目的は、医療陣及び患者と頻繁に接触すると予想される医療用モニターの外観を構成するケースに抗菌力を与えることによって、より衛生的な診療環境と治療環境を提供することにある。 An object of the present invention is to provide a more hygienic medical treatment and treatment environment by providing antibacterial power to a case constituting the appearance of a medical monitor that is expected to come into frequent contact with medical staff and patients. .
このような目的を達成するための本発明は、プラスチック樹脂９９.４〜９９.８重量％と、下記の化学式１で表示されるリン酸亜鉛系ガラスパウダー０.２〜０.４重量％とを含む医療モニター用抗菌ケースを提供する。 In order to achieve such an object, the present invention includes 99.4 to 99.8% by weight of a plastic resin, 0.2 to 0.4% by weight of zinc phosphate glass powder represented by the following chemical formula 1, An antibacterial case for medical monitors including
前記リン酸亜鉛系ガラスパウダーは、真比重（Ｔｒｕｅ ｓｐｅｃｉｆｉｃ ｇｒａｖｉｔｙ）が２.４５〜２.５５で、バルク体積比重（ｂｕｌｋ ｓｐｅｃｉｆｉｃ ｇｒａｖｉｔｙ）が０.７８〜０.８２であることが望ましい。 The zinc phosphate glass powder preferably has a true specific gravity of 2.45 to 2.55 and a bulk specific gravity of 0.78 to 0.82.
前記プラスチック樹脂は、ＡＢＳ樹脂（ａｃｒｙｌｏｎｉｔｒｉｌｅ ｂｕｔａｄｉｅｎｅ ｓｔｙｒｅｎｅ ｃｏｐｏｌｙｍｅｒ）、ＰＰ樹脂（ｐｏｌｙｐｒｏｐｙｌｅｎｅ ｒｅｓｉｎ）及びＰＣ樹脂（ｐｏｌｙｃａｒｂｏｎａｔｅ ｒｅｓｉｎ）から選択される一つであることが望ましい。 The plastic resin is preferably one selected from an ABS resin (acrylonitrile butylenee copolymer), a PP resin (polypropylene resin), and a PC resin (polycarbonate resin).
そして、本発明は、平面映像を表示する液晶パネルと、前記液晶パネルに面光を照射するバックライトユニットと、前記液晶パネルを露出させる開口部が形成された前面ケースと、前記前面ケースと結合され、前記液晶パネルと前記バックライトユニットを取り囲む後面ケースとを含み、前記前面ケース及び前記後面ケースは、プラスチック樹脂９９.４〜９９.８重量％と、前記化学式１で表示されるリン酸亜鉛系ガラスパウダー０.２〜０.４重量％とが含まれた材質である医療モニターを提供する。 The present invention provides a liquid crystal panel that displays a flat image, a backlight unit that irradiates the liquid crystal panel with surface light, a front case in which an opening that exposes the liquid crystal panel is formed, and the front case. And a rear case surrounding the backlight unit, wherein the front case and the rear case are made of 99.4-99.8% by weight of plastic resin and zinc phosphate represented by the chemical formula 1. Provided is a medical monitor which is a material containing 0.2 to 0.4% by weight of a glass powder.
前記のような構成を有する本発明は、モニターケースに抗菌性を与え、医療陣及び患者と近接して使用されるモニターの表面での細菌の増殖を防止することによって、より衛生的な医療環境を提供するという効果をもたらす。 The present invention having the above-described configuration provides a more hygienic medical environment by providing antibacterial properties to the monitor case and preventing bacterial growth on the surface of the monitor used in close proximity to the medical team and the patient. The effect of providing
以下、添付の図面を参照して本発明の医療用モニター用抗菌ケースについて説明する。 Hereinafter, an antibacterial case for a medical monitor of the present invention will be described with reference to the accompanying drawings.
本発明の長所、特徴及びそれらを達成する方法は、添付の図面と共に詳細に後述する各実施例を参照すると明確になるだろう。しかし、本発明は、以下で開示する各実施例に限定されるものではなく、互いに異なる多様な形態に具現可能である。ただし、本実施例は、本発明の開示を完全にし、本発明の属する技術分野で通常の知識を有する者に発明の範疇を完全に知らせるために提供されるものであって、本発明は、請求項の範疇によって定義されるものに過ぎない。明細書全体にわたって同一の参照符号は、同一の構成要素を示す。 The advantages, features, and methods of achieving the same of the present invention will become apparent with reference to the embodiments described below in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and can be embodied in various different forms. However, this embodiment is provided in order to complete the disclosure of the present invention and to fully inform the person of ordinary skill in the technical field to which the present invention pertains the scope of the invention. They are only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
また、図面において、発明を構成する各構成要素の大きさは、明細書の明確性のために誇張して示したものであって、一つの構成要素が他の構成要素の「内部に存在したり、連結されて設置される」と記載された場合、前記一つの構成要素が前記他の構成要素と接して設置されてもよく、所定の隔離距離を置いて設置されてもよい。前記一つの構成要素が前記他の構成要素と隔離距離を置いて設置される場合は、前記一つの構成要素を前記他の構成要素に固定又は連結するための第３の手段に対する説明を省略することもできる。 In the drawings, the size of each component constituting the invention is exaggerated for the sake of clarity of the specification, and one component is present “inside the other component”. Or “installed in a connected manner”, the one component may be installed in contact with the other component, or may be installed at a predetermined separation distance. When the one component is installed at a separation distance from the other component, description of the third means for fixing or connecting the one component to the other component is omitted. You can also.
図１は、本発明に係る抗菌ケースを含む医療用モニターの斜視図で、図２は、本発明に係る抗菌ケースを含む医療用モニターの分離斜視図である。 FIG. 1 is a perspective view of a medical monitor including an antibacterial case according to the present invention, and FIG. 2 is an exploded perspective view of the medical monitor including an antibacterial case according to the present invention.
図１及び図２に示したように、本発明に係る医療用モニター１００は、液晶パネル１１０と、前記液晶パネル１１０の後方に配置されるバックライトユニット１２０と、前記バックライトユニット１２０の後方に配置される駆動回路部１３０と、前記液晶パネル１１０を露出させる開口部１４２が形成された前面ケース１４０と、前記前面ケース１４０と結合され、前記液晶パネル１１０、前記バックライトユニット１２０及び前記駆動回路部１３０を取り囲む後面ケース１５０とを含む。そして、前記液晶パネル１１０は、強化ガラス１８０によって保護される。これは、典型的なＬＣＤモニターの構成と言えるので、これについての詳細な説明は省略する。
As shown in FIGS. 1 and 2, the
本発明は、このような医療用モニターの構成品のうち、外部に露出して医療陣及び患者と直接接触するようになるモニターケースに抗菌機能を与えることを特徴とする。 The present invention is characterized in that an antibacterial function is imparted to a monitor case that is exposed to the outside and comes into direct contact with a medical team and a patient among the components of such a medical monitor.
モニターケースは、前面ケース１４０及び後面ケース１５０で構成されるが、本発明は、前面ケース１４０と後面ケース１５０の両方に抗菌性を与えることによって、患者及び医療陣と接触するモニターの外部全体に抗菌性を与えることを特徴とする。以下では、前面ケース１４０と後面ケース１５０をケースと総称する。
Although the monitor case is composed of a
本発明に係る医療モニター用抗菌ケースは、プラスチックレジンに少量のリン酸亜鉛系ガラスパウダーを混合して製造されることによって、表面にバクテリアなどの細菌が繁殖することを防止する。 The antibacterial case for medical monitors according to the present invention is manufactured by mixing a small amount of zinc phosphate glass powder with a plastic resin, thereby preventing bacteria and other bacteria from growing on the surface.
前記リン酸亜鉛系ガラスパウダーは、下記の化学式１で構成される。 The zinc phosphate glass powder has the following chemical formula 1.
リン酸亜鉛系ガラスパウダーは、白色のパウダーとして存在し、真比重が２.４５〜２.５５で、バルク体積比重が０.７８〜０.８２で、平均粒度が３〜５μｍで、最大粒径が１０〜２０μｍであることが望ましい。 Zinc phosphate glass powder exists as white powder, has a true specific gravity of 2.45 to 2.55, a bulk volume specific gravity of 0.78 to 0.82, an average particle size of 3 to 5 μm, and a maximum particle size. The diameter is desirably 10 to 20 μm.
前記リン酸亜鉛系ガラスパウダーは単一物（ｓｉｎｇｌｅ ｐｒｏｄｕｃｔ）であって、物質自体の安全性は以下の通りである。 The zinc phosphate glass powder is a single product, and the safety of the substance itself is as follows.
目に入ったとき及び肌に接触したときに害がなく、水で洗い流せばよい。 There is no harm when it comes into contact with the eyes or when it comes into contact with the skin.
粒度が過度に大きいと、ガラスパウダーがクラックポイントとして作用することによって耐久性を低下させるおそれがあり、また、ケースの表面品質の低下をもたらす。 If the particle size is excessively large, the glass powder may act as a crack point to reduce the durability, and the surface quality of the case is deteriorated.
プラスチックレジンには、成形性、強度、耐久性、耐熱性などの特性が要求される。 Plastic resins are required to have properties such as moldability, strength, durability, and heat resistance.
プラスチックレジンとして使用可能なプラスチック樹脂としては、ＡＢＳ樹脂（ａｃｒｙｌｏｎｉｔｒｉｌｅ ｂｕｔａｄｉｅｎｅ ｓｔｙｒｅｎｅ ｃｏｐｏｌｙｍｅｒ）、ＰＰ樹脂（ｐｏｌｙｐｒｏｐｙｌｅｎｅ ｒｅｓｉｎ）、ＰＣ樹脂（ｐｏｌｙｃａｒｂｏｎａｔｅ ｒｅｓｉｎ）などがある。 Examples of the plastic resin that can be used as the plastic resin include ABS resin (acrylonitrile butyleneene copolymer), PP resin (polypropylene resin), PC resin (polycarbonate resin), and the like.
ＡＢＳ樹脂は、スチレン・アクリロニトリル・ブタジエンの三つの成分からなるスチレン樹脂であって、一般に、加工しやすく、耐衝撃性が大きく、耐熱性が良いという特性を有する。ＡＢＳ樹脂は、ポリエチレンに比べると、耐熱性８０°に対して９３°、耐衝撃性０.８に対して４.５である。 The ABS resin is a styrene resin composed of three components of styrene, acrylonitrile and butadiene, and generally has characteristics that it is easy to process, has high impact resistance, and good heat resistance. The ABS resin has a heat resistance of 93 ° with respect to 80 ° and a shock resistance of 4.5 with respect to 0.8 compared with polyethylene.
ＡＢＳ樹脂の製造法は、アクリロニトリルとブタジエンの混成重合体及びスチレンとブタジエンの混成重合体を混合（ブレンド）することが一般的であって、それぞれの混成重合体の性質を同時に有する混合樹脂を得る。混成重合体の成分の組み合わせが異なると、製品の性能も微妙に変化するので、用途によって組み合わせを変える。 The ABS resin production method generally involves mixing (blending) a mixed polymer of acrylonitrile and butadiene and a mixed polymer of styrene and butadiene to obtain a mixed resin having the properties of each of the mixed polymers at the same time. . If the combination of the components of the hybrid polymer is different, the performance of the product changes slightly, so the combination is changed depending on the application.
ＰＰ樹脂は、石油化学工場でナフサを分解するときにエチレンと共に生じる。 アイソタクチック（ｉｓｏｔａｃｔｉｃ）構造を有するので、構造式のように、メチル基が同一方向に整然と配列されている。融点は１６５℃で、荷重下での連続使用は１１０℃で可能である。そして、密度は０.９〜０.９１で、結晶度は大きいが、成形後には７０％以下に低下するという特性を有する。 PP resin is produced with ethylene when naphtha is decomposed in a petrochemical plant. Since it has an isotactic structure, methyl groups are regularly arranged in the same direction as in the structural formula. The melting point is 165 ° C and continuous use under load is possible at 110 ° C. The density is from 0.9 to 0.91, and the crystallinity is large, but after molding, it has a characteristic of decreasing to 70% or less.
ＰＣ樹脂は、ポリ炭酸エステルともいう。実用化された熱可塑性樹脂は、ビスフェノールＡのポリ炭酸エステルである。透明でかつ優れた機械的性質（特に耐衝撃性）・耐熱性・耐寒性・電気的性質を均衡のとれた状態で備えており、無毒でかつ自己消火性も有するエンジニアリングプラスチックである。ビスフェノールＡとホスゲンの界面重縮合反応による溶剤法、ビスフェノールＡとジフェニルカーボネートのエステル交換反応による溶融法の二つの製造法が工業的に用いられる。分子量は２万以上である。 The PC resin is also called a polycarbonate. The thermoplastic resin put into practical use is a polycarbonate of bisphenol A. It is an engineering plastic that is transparent and has excellent mechanical properties (especially impact resistance), heat resistance, cold resistance, and electrical properties in a balanced state, and is non-toxic and self-extinguishing. Two production methods are industrially used: a solvent method based on an interfacial polycondensation reaction between bisphenol A and phosgene, and a melting method based on a transesterification reaction between bisphenol A and diphenyl carbonate. The molecular weight is 20,000 or more.
本発明に係る医療モニター用抗菌ケースは、ＡＢＳ樹脂、ＰＰ樹脂及びＰＣ樹脂から選択される一つのプラスチック樹脂９９.４〜９９.８重量％と、前記化学式１で表示されるリン酸亜鉛系ガラスパウダー０.２〜０.４重量％とを含んで構成される。 The antibacterial case for a medical monitor according to the present invention comprises 99.4 to 99.8% by weight of one plastic resin selected from ABS resin, PP resin and PC resin, and zinc phosphate glass represented by the above chemical formula 1. It is comprised including 0.2 to 0.4 weight% of powder.
溶融状態のプラスチック樹脂にリン酸亜鉛系ガラスパウダー粉末を添加して充分に撹拌し、リン酸亜鉛系ガラスパウダーを樹脂全体に均一に分布させた後、射出成形を通してモニター用ケースを製造する。 A zinc phosphate glass powder powder is added to a molten plastic resin and stirred sufficiently to distribute the zinc phosphate glass powder uniformly throughout the resin, and then a monitor case is manufactured through injection molding.
ここで、溶融状態とは、完全な液体状態を意味するのではなく、流動性を有するため粉末が混合可能であり、射出成形を行える状態を意味する。 Here, the molten state does not mean a complete liquid state, but means a state where powders can be mixed and injection molding can be performed because of fluidity.
リン酸亜鉛系ガラスパウダーは、プラスチック樹脂に抗菌性を与えるためのもので、機械的な物性に影響を与えないとともに、化学的に抗菌効果をもたらすことのできる範囲で添加しなければならない。 Zinc phosphate glass powder is for imparting antibacterial properties to plastic resins, and must be added within a range that does not affect mechanical properties and can provide an antibacterial effect chemically.
リン酸亜鉛系ガラスパウダーをプラスチック樹脂の全体重量に対して０.２重量％未満で添加すると、抗菌効果を発揮できなく、リン酸亜鉛系ガラスパウダーをプラスチック樹脂の全体重量に対して０.４重量％を超えて添加すると、機械的な物性に変化をもたらすようになる。これは、添加されたリン酸亜鉛系ガラスパウダーがケースで欠陥として作用し、強度と耐久性を低下させるおそれがあるためである。 If the zinc phosphate glass powder is added in an amount of less than 0.2% by weight based on the total weight of the plastic resin, the antibacterial effect cannot be exerted, and the zinc phosphate glass powder is 0.4% based on the total weight of the plastic resin. Addition in excess of% by weight causes a change in mechanical properties. This is because the added zinc phosphate glass powder acts as a defect in the case and may reduce strength and durability.
また、リン酸亜鉛系ガラスパウダーの過量添加は、原価の上昇をもたらすので、抗菌性を発揮できる適正な量でリン酸亜鉛系ガラスパウダーを添加することが重要である。 Moreover, since excessive addition of zinc phosphate glass powder leads to an increase in cost, it is important to add zinc phosphate glass powder in an appropriate amount that can exhibit antibacterial properties.
＜実施例＞ <Example>
純粋なＡＢＳ樹脂（比較例）と、ＡＢＳ樹脂に化学式１のリン酸亜鉛系ガラスパウダーを０.４重量％混合した樹脂（実施例）で試片を製造し、ＪＩＳ Ｚ ２８０１定量分析方法によって抗菌力を実験した。 Specimens were manufactured with pure ABS resin (comparative example) and resin (example) in which 0.4 wt% of zinc phosphate glass powder of chemical formula 1 was mixed with ABS resin, and antibacterial by JIS Z 2801 quantitative analysis method. Experimented with force.
実施例の樹脂は、溶融状態のＡＢＳ樹脂９９.６重量％に対して化学式１のリン酸亜鉛系ガラスパウダーを０.４重量％添加し、撹拌器で充分に撹拌した後、射出成形を通して試片を製造した。 The resin of the example was added by 0.4 wt% of the zinc phosphate glass powder of Chemical Formula 1 to 99.6 wt% of the ABS resin in the molten state, sufficiently stirred with a stirrer, and then tested through injection molding. Pieces were produced.
比較例の試片と実施例の試片に細菌（Ｅｓｃｈｅｒｉｃｈｉａ ｃｏｌｉ ＮＢＲＣ ３９７２）を接種し、温度３５℃±１℃、相対湿度９０％の環境で２４時間定置した後、菌数を測定した。 Bacteria (Escherichia coli NBRC 3972) were inoculated on the test piece of the comparative example and the test piece of the example, and the number of bacteria was measured after being placed in an environment of a temperature of 35 ° C. ± 1 ° C. and a relative humidity of 90% for 24 hours.
接種菌数は２.３×１０5／ｍｌで、接種量は０.４ｍｌにした。 The number of inoculum was 2.3 × 10 5 / ml, and the inoculum was 0.4 ml.
比較例の場合は細菌数（Ａ）が２.２×１０7／ｍｌに増加し、実施例の場合は細菌数（Ｂ）が６.６×１０3／ｍｌに減少した。 In the case of the comparative example, the number of bacteria (A) increased to 2.2 × 10 7 / ml, and in the case of the example, the number of bacteria (B) decreased to 6.6 × 10 3 / ml.
抗菌指数は、ｌｏｇ（Ａ／Ｂ）＝ｌｏｇ（２.２×１０7／６.６×１０3）＝３.５であった。 The antibacterial index was log (A / B) = log (2.2 × 10 7 /6.6×10 3 ) = 3.5.
標準規定では、抗菌指数が２.０以上であるときに抗菌力を有すると見なす。 According to the standard rules, antibacterial activity is considered to be antibacterial when the antibacterial index is 2.0 or higher.
したがって、本発明に係る亜鉛系ガラスパウダーを添加したＡＢＳ樹脂は、Ｅｓｃｈｅｒｉｃｈｉａ ｃｏｌｉ ＮＢＲＣ ３９７２に対して抗菌力を有することが分かる。 Therefore, it can be seen that the ABS resin to which the zinc-based glass powder according to the present invention is added has antibacterial activity against Escherichia coli NBRC 3972.
従来の抗菌性のないモニターケースの場合は、表面に付着される各細菌が増殖するおそれがあり、患者及び医療陣と近接して使用される特性上、増殖した各細菌が患者及び医療陣に感染を起こすおそれがあった。本発明は、医療環境で使用されるモニターに抗菌性を与えることによって、より安全かつ衛生的な医療環境を提供できるという効果をもたらす。 In the case of a conventional monitor case that does not have antibacterial properties, there is a risk that bacteria attached to the surface may grow. There was a risk of infection. The present invention provides an effect that a safer and more hygienic medical environment can be provided by imparting antibacterial properties to a monitor used in the medical environment.
以上、添付の図面を参照して本発明の各実施例を説明したが、本発明は、前記各実施例に限定されるものではなく、互いに異なる多様な形態で製造可能である。また、本発明の属する技術分野で通常の知識を有する者であれば、本発明の技術的思想や必須な特徴を変更せずとも他の具体的な形態で実施可能であることを理解できるだろう。したがって、以上説明した各実施例は、全ての面で例示的なものであって、限定的なものでないことを理解しなければならない。 As mentioned above, although each Example of this invention was described with reference to the accompanying drawing, this invention is not limited to each said Example, It can manufacture with a mutually different various form. Further, those who have ordinary knowledge in the technical field to which the present invention pertains can understand that the present invention can be implemented in other specific forms without changing the technical idea and essential features of the present invention. Let's go. Accordingly, it should be understood that the embodiments described above are illustrative in all aspects and not limiting.
１００：医療用モニター、１４０：前面ケース、１５０：後面ケース 100: medical monitor, 140: front case, 150: rear case
Claims (10)
下記の化学式１で表示されるリン酸亜鉛系ガラスパウダー０.２〜０.４重量％と、を含む医療モニター用抗菌ケース。
An antibacterial case for medical monitors, comprising 0.2 to 0.4% by weight of zinc phosphate glass powder represented by the following chemical formula 1.
前記液晶パネルに面光を照射するバックライトユニットと、
前記液晶パネルを露出させる開口部が形成された前面ケースと、
前記前面ケースと結合され、前記液晶パネル及び前記バックライトユニットを取り囲む後面ケースと、を含み、
前記前面ケース及び前記後面ケースは、プラスチック樹脂９９.４〜９９.８重量％と、下記の化学式１で表示されるリン酸亜鉛系ガラスパウダー０.２〜０.４重量％と、が含まれた材質であることを特徴とする医療モニター。
A backlight unit that irradiates the liquid crystal panel with surface light;
A front case formed with an opening for exposing the liquid crystal panel;
A rear case coupled to the front case and surrounding the liquid crystal panel and the backlight unit;
The front case and the rear case include 99.4 to 99.8% by weight of plastic resin and 0.2 to 0.4% by weight of zinc phosphate glass powder represented by the following chemical formula 1. A medical monitor characterized by its material.
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|---|---|---|---|---|
| JPH09297342A (en) * | 1996-05-09 | 1997-11-18 | Konica Corp | Camera having antibacterial agent |
| JP2001247726A (en) * | 1999-12-28 | 2001-09-11 | Ishizuka Glass Co Ltd | Glass composition for imparting antibacterial property, and antibacterial polymer composite material |
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| JP2009299004A (en) * | 2008-05-12 | 2009-12-24 | Sumitomo Dow Ltd | Transparent thermoplastic resin composition excellent in antibacterial activity, and molded article composed thereof |
| JP2010052221A (en) * | 2008-08-27 | 2010-03-11 | Sumitomo Dow Ltd | Writing implement shaft cylinder formed of antibacterial polycarbonate resin composition |
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|---|---|---|---|---|
| JPH09297342A (en) * | 1996-05-09 | 1997-11-18 | Konica Corp | Camera having antibacterial agent |
| JP2001247726A (en) * | 1999-12-28 | 2001-09-11 | Ishizuka Glass Co Ltd | Glass composition for imparting antibacterial property, and antibacterial polymer composite material |
| JP2003246645A (en) * | 2002-02-26 | 2003-09-02 | Koa Glass Kk | Antifungal glass, antifungal resin composition and method for producing antifungal glass |
| JP2004359754A (en) * | 2003-06-03 | 2004-12-24 | Ishizuka Glass Co Ltd | Antimicrobial resin composition and molded article thereof |
| JP2009299004A (en) * | 2008-05-12 | 2009-12-24 | Sumitomo Dow Ltd | Transparent thermoplastic resin composition excellent in antibacterial activity, and molded article composed thereof |
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