JP2007151626A - Medical appliance - Google Patents
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- JP2007151626A JP2007151626A JP2005347306A JP2005347306A JP2007151626A JP 2007151626 A JP2007151626 A JP 2007151626A JP 2005347306 A JP2005347306 A JP 2005347306A JP 2005347306 A JP2005347306 A JP 2005347306A JP 2007151626 A JP2007151626 A JP 2007151626A
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- packing
- lid
- groove
- main body
- medical device
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- 238000012856 packing Methods 0.000 claims abstract description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 description 5
- 238000003287 bathing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000004078 waterproofing Methods 0.000 description 2
- 206010003119 arrhythmia Diseases 0.000 description 1
- 230000006793 arrhythmia Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
Description
本発明はホルタ心電計や心電図テレメータのような医療機器に関し、特に開閉が必要な部分の防水構造に関する。 The present invention relates to a medical device such as a Holter electrocardiograph or an electrocardiogram telemeter, and more particularly to a waterproof structure for a portion that needs to be opened and closed.
医療機器は一般に病院で用いられており、特殊な場合を除いて防水性能を有する必要はない。しかし、中には水等の液体が掛かりやすい環境で使用される機器や、防水性能を有することが望ましい機器も存在する。 Medical devices are generally used in hospitals and do not need to be waterproof except in special cases. However, there are devices that are used in environments where liquids such as water are easily applied, and devices that are desirably waterproof.
従来、不整脈等の診断を目的として、日常生活を送りながら長時間（最大で４８時間程度であることが多い）連続して心電図を記録する心電計（ホルタ心電計）が知られている。ホルタ心電計のデータ記録媒体が磁気テープであった頃は、心電計自体がかなり大きく、また、薄い樹脂フィルムを走行させてアナログ記録するという構成上、測定中に入浴したりやシャワーを浴びたりすることは許されていなかった。 2. Description of the Related Art Conventionally, an electrocardiograph (Holter electrocardiograph) that records an electrocardiogram continuously for a long time (often about 48 hours at maximum) is known for the purpose of diagnosing arrhythmia and the like. . When the data recording medium of the Holter electrocardiograph was magnetic tape, the electrocardiograph itself was quite large, and a thin resin film was run for analog recording, so bathing or taking a shower during measurement It was not allowed to do.
入浴やシャワーの使用時には血圧が大きく変動するため、その過程における心電図は、診断に有用な情報となりうる。そのため、防水性能を有する心電計に対する要求は従来から存在していた。しかし、防水性能を有する機器は防水性能を持たない機器よりも大型化するのが一般的である。そのため、もともと小型でなかった従来のホルタ心電計に防水性能を持たせたとしても、そのようなホルタ心電計を装着しながら入浴もしくはシャワーを浴びるということ自体が現実的ではなかった。 Since blood pressure fluctuates greatly during bathing and showering, an electrocardiogram in the process can be useful information for diagnosis. For this reason, there has been a demand for an electrocardiograph having waterproof performance. However, a device having waterproof performance is generally larger than a device having no waterproof performance. For this reason, even if a conventional Holter electrocardiograph that was originally not compact is made waterproof, it is not practical to take a bath or shower while wearing such a Holter electrocardiograph.
しかしながら、近年では技術の進歩により、半導体メモリを記録媒体として用い、ディジタル記録を行う小型のホルタ心電計が実現されている。つまり、心電計や電極が防水性能を有しさえすれば、入浴中やシャワー中等でも被検者にそれほど負担をかけることなく測定を行うことができる環境が整いつつある。このような状況から、入浴中やシャワー中でも心電図の測定を行うための提案がなされつつある（特許文献１参照）。 However, in recent years, small Holter electrocardiographs that perform digital recording using a semiconductor memory as a recording medium have been realized due to technological advances. In other words, as long as the electrocardiograph and the electrode have waterproof performance, an environment is being prepared in which measurement can be performed without much burden on the subject even during bathing or showering. Under such circumstances, proposals for measuring an electrocardiogram during bathing or showering are being made (see Patent Document 1).
特許文献１では、防水性能を有する生体電極に無線通信機能を持たせることで、遠隔的に記録装置で記録を行うことが提案されている。しかし、無線通信機能を実現するための回路や電源等を電極に設けると、電極の大型化を招く。また、測定結果が無線通信の状態に影響をうけてしまう。従って、安定した測定と被検者の負担軽減を両立するには、防水性能を有する心電計本体が必要となる。 In Patent Document 1, it is proposed to perform recording remotely by a recording device by providing a biological electrode having waterproof performance with a wireless communication function. However, when a circuit, a power supply, or the like for realizing a wireless communication function is provided on the electrode, the electrode becomes large. In addition, the measurement result affects the wireless communication state. Therefore, in order to achieve both stable measurement and reduction of the burden on the subject, an electrocardiograph body having waterproof performance is required.
この場合、心電計本体のケースを開ける必要が無ければ、ケースを密閉構造とすることが可能である。しかし、データを記録したメモリカードの着脱や、電源である電池の交換などの際に、ケースを開閉する必要が生じるような場合には、開閉部分を防水構造とする必要が生じる。そして、この防水構造は、開け閉めが容易であり、かつ確実な防水性能を実現できる構成であることが望まれる。そのため、ケースの蓋と容器との合わせ目となる部分を多くのネジにより締め付けるといった、容易にケースが開けられない構造を採用することはできない。 In this case, if it is not necessary to open the case of the electrocardiograph body, the case can be made to have a sealed structure. However, when it is necessary to open and close the case when attaching / detaching a memory card storing data or replacing a battery as a power source, the opening / closing portion needs to have a waterproof structure. The waterproof structure is desired to have a structure that can be easily opened and closed and can realize a reliable waterproof performance. For this reason, it is not possible to employ a structure in which the case cannot be easily opened, such as tightening the joint portion between the case lid and the container with many screws.
本発明はこのような従来技術の課題に鑑みなされたものであり、防水性を有しながら、容易に開閉が可能な防水構造を有する医療機器を提供することを目的とする。 The present invention has been made in view of the problems of the prior art, and an object thereof is to provide a medical device having a waterproof structure that can be easily opened and closed while having waterproofness.
すなわち、本発明の要旨は、開口部を有する本体部と、開口部を、水の進入を防止しながら覆う、開閉可能な蓋部を有する医療機器であって、蓋部が閉じられた際に、開口部を切れ目無く取り囲むように、蓋部に取り付けられたパッキンと、本体部に設けられた、パッキンを全周に渡って押圧するリブとを有し、蓋部が閉じられていない状態で、パッキンと、蓋部の、パッキンを取り付けるための溝との間に、パッキンが存在しない空間が形成されるよう、パッキンと、蓋部の、パッキンを取り付けるための溝の少なくとも一方に、凹部が設けられることを特徴とする医療機器に存する。 That is, the gist of the present invention is a medical device having a body portion having an opening portion and an openable / closable lid portion that covers the opening portion while preventing the entry of water, and when the lid portion is closed. In a state where the packing is attached to the lid so as to surround the opening without any break, and the rib provided on the main body for pressing the packing over the entire circumference is not closed. A recess is formed in at least one of the packing and the groove for attaching the packing of the lid so that a space without the packing is formed between the packing and the groove for attaching the packing of the lid. It exists in the medical device characterized by being provided.
以上の構成により、本発明によれば、防水性を有しながら、容易に開閉が可能な防水構造を有する医療機器を実現できる。 With the above configuration, according to the present invention, it is possible to realize a medical device having a waterproof structure that can be easily opened and closed while having waterproofness.
以下、図面を参照して本発明をその好適な実施形態に基づき詳細に説明する。
図１は、本発明の実施形態に係る医療機器の一例としてのホルタ心電計の外観斜視図である。
Hereinafter, the present invention will be described in detail based on preferred embodiments with reference to the drawings.
FIG. 1 is an external perspective view of a Holter electrocardiograph as an example of a medical device according to an embodiment of the present invention.
ホルタ心電計１００は本体部１１０と蓋部１２０とを有する。蓋部１２０は円筒を底面に垂直な面で切断したような半円筒形状を有し、一端を、ヒンジ１２５によって箱形の本体部１１０に接続される。蓋部１２０の他端はバックル１２２を突起１１５と係合させ、レバー１２３を後述のように操作することにより本体部１１０と着脱可能に構成される。このように、蓋部１２０がその一端をヒンジ１２５の軸を回転軸として移動可能に構成されていることにより蓋部１２０が本体部１１０に対して開閉可能となっている。 The Holter electrocardiograph 100 has a main body 110 and a lid 120. The lid 120 has a semi-cylindrical shape obtained by cutting a cylinder along a plane perpendicular to the bottom surface, and one end of the lid 120 is connected to the box-shaped main body 110 by a hinge 125. The other end of the lid 120 is configured to be detachable from the main body 110 by engaging the buckle 122 with the protrusion 115 and operating the lever 123 as described below. As described above, the lid 120 can be opened and closed with respect to the main body 110 by being configured so that one end of the lid 120 can move around the axis of the hinge 125 as a rotation axis.
本実施形態において、蓋部１２０の内部空間１２６と本体部１１０上部の空間１１２とで形成される空間は電池室として用いられる。つまり、電池交換時に蓋部１２０を開閉する。図１では、蓋部１２０が開いた状態を示している。 In the present embodiment, the space formed by the internal space 126 of the lid 120 and the space 112 above the main body 110 is used as a battery chamber. That is, the lid 120 is opened and closed when the battery is replaced. FIG. 1 shows a state where the lid 120 is opened.
本実施形態のホルタ心電計１００においては、本体部１１０と蓋部１２０との開閉構造を防水構造としている。防水性は、パッキン１２１を全周に渡って押圧するよう、本体部１１０の上面に連続的に設けられたリブ１１４及びその近傍の上面と、蓋部１２０の下面縁部に、開口部を取り囲むように取り付けられたパッキン１２１とが密着することによって実現される。 In the holter electrocardiograph 100 of this embodiment, the open / close structure of the main body 110 and the lid 120 is a waterproof structure. The waterproof property surrounds the opening at the rib 114 continuously provided on the upper surface of the main body 110 and the upper surface in the vicinity thereof and the lower surface edge of the lid 120 so as to press the packing 121 over the entire circumference. It implement | achieves when the packing 121 attached in this way closely_contact | adheres.
図２は、蓋部１２０とパッキン１２１を示す斜視図である。
上述のように蓋部１２０は内部空間を電池室として利用するため、中空構造であり、下面（図２は蓋部１２０を本体部１１０側から見た方向で示しているので実際とは上下逆に示されている）は略長方形状の縁部から構成される。つまり、ループ状のパッキン１２１は、蓋部１２０が閉じられた際に防水性を持たせて覆いたい開口部を切れ目無く取り囲むように、蓋部１２０に取り付けられている。従って、蓋部１２０が中実構造であっても、開口部の形状が同じであれば同様のパッキン１２１が設けられる。
FIG. 2 is a perspective view showing the lid 120 and the packing 121.
As described above, since the lid 120 uses the internal space as a battery chamber, it has a hollow structure and has a bottom surface (FIG. 2 shows the lid 120 in the direction viewed from the main body 110 side. Is comprised of substantially rectangular edges. That is, the loop-shaped packing 121 is attached to the lid portion 120 so that when the lid portion 120 is closed, the opening to be covered with water resistance is covered without a break. Therefore, even if the lid 120 has a solid structure, the same packing 121 is provided if the shape of the opening is the same.
そして、縁部の全周に渡ってパッキン１２１を取り付けるための溝１２４が設けられている。パッキン１２１は溝１２４に対して嵌め込まれており、パッキン１２１の変形を妨げないよう、パッキン１２１と溝１２４とは接着されないか、接着される場合であっても抜け落ちを防止するのに必要な最低限の接着に抑えられる。 And the groove | channel 124 for attaching the packing 121 over the perimeter of an edge part is provided. The packing 121 is fitted in the groove 124, and the packing 121 and the groove 124 are not bonded to each other so as not to prevent the deformation of the packing 121. It is suppressed to the limit of adhesion.
図３（ａ）は、パッキン１２１の断面形状を示す図である。図に示すように、本実施形態のパッキン１２１は、切り欠き１２１ａを有する略方形状の断面を有する。本体部１１０の上面（開口部周縁の上面）と密着し、防水シールとして機能する下面は平坦であり、蓋部１２０の溝１２４に嵌め込まれる上面に切り欠き１２１ａが設けられる。１２１ａは、図３（ａ）では断面形状であるため切り欠きであるが、実際には図２に示すパッキン１２１の、長さ方向に連続した溝である。本実施形態において、パッキン１２１に設けられる溝の断面形状（切り欠き１２１ａの形状）は上底が下底よりも長い逆台形であるが、断面形状に特段の制限はない。ただし、溝形成の加工容易性や、後述するパッキンの変形を容易にするという観点からは、逆台形のように、外方（上面）に向かって拡がった形状であることが好ましい。 FIG. 3A is a view showing a cross-sectional shape of the packing 121. As shown in the figure, the packing 121 of the present embodiment has a substantially rectangular cross section having a notch 121a. The lower surface that is in close contact with the upper surface of the main body 110 (the upper surface of the periphery of the opening) and functions as a waterproof seal is flat. Although 121a is a notch because it has a cross-sectional shape in FIG. 3A, it is actually a groove continuous in the length direction of the packing 121 shown in FIG. In the present embodiment, the cross-sectional shape of the groove provided in the packing 121 (the shape of the notch 121a) is an inverted trapezoid whose upper base is longer than the lower base, but the cross-sectional shape is not particularly limited. However, from the viewpoint of facilitating the process of forming the groove and facilitating the deformation of the packing described later, it is preferable that the shape expands outward (upper surface) like an inverted trapezoid.
本実施形態において、パッキン１２１の材質に制限はないが、例えばシリコンゴムのような、柔軟で防水性を有するゴム系の素材が好ましい。また、硬度が大きいと蓋部１２０を閉じる際に要する力が大きくなるので、防水性を実現できる範囲で柔らかめの硬度とすることが好ましい。 In this embodiment, the material of the packing 121 is not limited, but a flexible and waterproof rubber-based material such as silicon rubber is preferable. Moreover, since the force required when closing the cover part 120 will become large when hardness is large, it is preferable to set it as soft hardness in the range which can implement | achieve waterproofness.
図３（ｂ）は、蓋部１２０の溝１２４の断面形状を示す図である。蓋部１２０の溝１２４は、パッキン１２１の幅と等しい幅を有し、パッキンの高さ（厚み）よりも若干浅い第１の溝１２４ａと、第１の溝の、パッキン１２１の切り欠き（溝）１２１ａに対向する部分に設けられた第２の溝１２４ｂとからなる略凸字の断面形状を有する。 FIG. 3B is a diagram illustrating a cross-sectional shape of the groove 124 of the lid portion 120. The groove 124 of the lid portion 120 has a width equal to the width of the packing 121 and is slightly shallower than the height (thickness) of the packing, and a notch (groove) of the packing 121 of the first groove. ) It has a substantially convex cross-sectional shape composed of a second groove 124b provided in a portion facing 121a.
図３（ｃ）は、蓋部１２０の溝１２４にパッキン１２１を嵌め込んだ状態を示す垂直断面図である。このように、蓋部１２０が開いた状態では、パッキン１２１が溝１２４から若干飛び出した状態にある。 FIG. 3C is a vertical cross-sectional view showing a state where the packing 121 is fitted in the groove 124 of the lid 120. As described above, when the lid 120 is open, the packing 121 is slightly protruded from the groove 124.
次に、蓋部１２０を閉じる際の手順について、図４を参照して説明する。
上述のように、本実施形態のホルタ心電計１００において、蓋部１２０は、レバー１２３を用い、バックル１２２を、本体部１１０の側面に設けられた突起１１５に係合した状態に維持させることによって閉位置に固定され、本体部１１０と蓋部１２０との開口部の防水性を実現する。
Next, the procedure for closing the lid 120 will be described with reference to FIG.
As described above, in the holter electrocardiograph 100 according to the present embodiment, the lid 120 uses the lever 123 to maintain the buckle 122 in a state of being engaged with the protrusion 115 provided on the side surface of the main body 110. Is fixed in the closed position, and waterproofing of the opening of the main body 110 and the lid 120 is realized.
図４（ａ）に示すように、レバー１２３は略Ｌ字形状を有し、その一端を軸１２３により、蓋部１２０の開放端（軸１２５で接続されている端部とは逆の端部）に対して回転可能に取り付けられている。そして、レバー１２３の折れ曲がった部分には、軸１２２ａが設けられ、軸１２２ａにはバックル１２２の一端が取り付けられている。このように、バックル１２２はレバー１２３に対して軸１２２ａ周りに回転可能に、レバー１２３は蓋部１２０に対して軸１２３ａ周りに回転可能に構成されている。 As shown in FIG. 4A, the lever 123 has a substantially L shape, and one end of the lever 123 is connected to the open end of the lid 120 (the end opposite to the end connected by the shaft 125) by the shaft 123. ) For rotation. The bent portion of the lever 123 is provided with a shaft 122a, and one end of the buckle 122 is attached to the shaft 122a. As described above, the buckle 122 is configured to be rotatable about the shaft 122 a with respect to the lever 123, and the lever 123 is configured to be rotatable about the shaft 123 a with respect to the lid 120.
蓋部１２０を閉じる場合には、先ずバックル１２２の先端部１２２ｂを、本体部１１０の側面に設けられた突起１１５の下に移動させる（図４（ｂ））。この状態で、レバー１２３の自由端を、図４（ｂ）及び図４（ｃ）の矢印Ａで示すように、蓋部１２０の上に向けて移動させる。 When closing the lid 120, first, the tip 122b of the buckle 122 is moved below the projection 115 provided on the side surface of the main body 110 (FIG. 4B). In this state, the free end of the lever 123 is moved toward the top of the lid 120 as shown by the arrow A in FIGS. 4 (b) and 4 (c).
レバー１２３の自由端が蓋部１２０の方向へ移動すると、軸１２２ａを支点、軸１２３ａを作用点とする梃子により、蓋部１２０が閉じる方向（図４（ｂ）、矢印Ｂ方向）に付勢される。そして、最終的には図５に示すような閉位置で安定する。 When the free end of the lever 123 moves in the direction of the lid 120, the lever 120 is biased in the closing direction (FIG. 4 (b), arrow B direction) by the lever having the shaft 122a as a fulcrum and the shaft 123a as an action point. Is done. And finally, it stabilizes in the closed position as shown in FIG.
この、蓋部１２０が閉じられる過程で、本体部１１０の上面縁部に設けられたリブ１１４及びリブ１１４近傍の上面と、蓋部１２０に取り付けられたパッキン１２１とが接し、パッキン１２１が押しつけられる。この押圧力によりパッキン１２１は変形し、溝１２４内に押し込まれると同時に、その反作用として、本体部１１０のリブ１１４及びその近傍の上面を押圧する。その結果、パッキン１２１と本体部１１０上面とが密着し、防水性を実現することができる。 In the process of closing the lid 120, the rib 114 provided on the upper surface edge of the main body 110 and the upper surface in the vicinity of the rib 114 come into contact with the packing 121 attached to the lid 120, and the packing 121 is pressed. . Due to this pressing force, the packing 121 is deformed and pushed into the groove 124, and at the same time, as a reaction, the rib 114 of the main body 110 and the upper surface in the vicinity thereof are pressed. As a result, the packing 121 and the upper surface of the main body 110 are in close contact with each other, and waterproofness can be realized.
そして、本実施形態においては、パッキン１２１の上面に溝（切り欠き）１２１ａが設けてあること、また溝１２４に第２の溝１２４ｂを設けてあることから、軽い力で蓋部１２０を閉じることができる。 In the present embodiment, since the groove (notch) 121a is provided on the upper surface of the packing 121 and the second groove 124b is provided in the groove 124, the lid 120 is closed with a light force. Can do.
図６に示すように、パッキン１２１と溝１２４のいずれにも凹部が存在しない構成を考える。すなわち、溝のないパッキン１２１’を、蓋部１２０の、第２の溝１２４ｂのない溝１２４’に嵌め込んだ構成を考える。この場合、蓋部１２０を閉じる際には、パッキン１２１’を溝１２４’に収まる程度に圧縮するだけの力が必要となる。しかも、パッキン１２１’の一部ではなく、全周に渡って溝１２４’に収めるような圧縮力が必要であるため、かなりの力が必要となることが理解されよう。 As shown in FIG. 6, a configuration in which there is no recess in any of the packing 121 and the groove 124 is considered. In other words, a configuration is considered in which the packing 121 ′ having no groove is fitted into the groove 124 ′ having no second groove 124 b of the lid 120. In this case, when the lid 120 is closed, a force sufficient to compress the packing 121 ′ so as to fit in the groove 124 ′ is required. In addition, it is understood that a considerable force is required because a compressive force that fits in the groove 124 ′ is required over the entire circumference instead of a part of the packing 121 ′.
一方、本実施形態では、パッキン１２１の上面に溝１２１ａが設けられているため、蓋部１２０が閉じられていない状態で、パッキン１２１が存在しない空間が溝１２１ａによって形成されている。そのため、蓋部１２０を閉じる際にリブ１１４及びその近傍の上面から加わる力で変形したパッキン１２１は、溝１２１ａで形成される空間を占めることができる。さらに、本実施形態ではパッキン１２１のうち最も大きな圧縮力がかかる、リブ１１４に対向する位置に溝１２１ａを設けているため、リブ１１４で押圧されたパッキン１２１が、小さな力で変形することを可能としている。 On the other hand, in this embodiment, since the groove 121a is provided on the upper surface of the packing 121, a space in which the packing 121 does not exist is formed by the groove 121a in a state where the lid portion 120 is not closed. Therefore, the packing 121 deformed by the force applied from the rib 114 and the upper surface in the vicinity thereof when closing the lid 120 can occupy the space formed by the groove 121a. Furthermore, in this embodiment, since the groove 121a is provided at a position facing the rib 114 where the greatest compressive force is applied in the packing 121, the packing 121 pressed by the rib 114 can be deformed with a small force. It is said.
さらに、本実施形態では、パッキン１２１を取り付ける蓋部１２０の溝１２４においても、溝１２１ａに対向する位置に第２の溝１２４ｂを設けている。この第２の溝１２４ｂによって、蓋部１２０が閉じられていない状態で形成される、パッキン１２１が存在しない空間が更に拡がるため、押圧されたパッキン１２１の変形を一層容易にすることができる。 Further, in the present embodiment, the second groove 124b is provided at a position facing the groove 121a also in the groove 124 of the lid portion 120 to which the packing 121 is attached. The second groove 124b further expands the space where the packing 121 does not exist, which is formed in a state where the lid 120 is not closed, so that the deformation of the pressed packing 121 can be further facilitated.
つまり、本実施形態では、パッキン１２１とパッキン１２１を取り付けるための溝１２４の両方に凹部を設けることで、パッキン１２１に圧縮力が掛かった際にパッキン１２１がその凹部に入り込むようにしている。パッキン１２１の材料自体を圧縮するのに必要な力と、柔軟な材料からなるパッキン１２１を変形させて凹部に入り込ませるのに必要な力を比較すれば、後者が大幅に小さくて済むことは自明であろう。 That is, in this embodiment, the recess 121 is provided in both the packing 121 and the groove 124 for attaching the packing 121, so that the packing 121 enters the recess when a compressive force is applied to the packing 121. If the force required to compress the material itself of the packing 121 is compared with the force required to deform the packing 121 made of a flexible material and enter the recess, it is obvious that the latter can be much smaller. Will.
図７（ａ）は、本実施形態におけるホルタ心電計の蓋部１２０を閉じた状態のパッキン１２１及びその周囲の状態を模式的に示す垂直断面図である。
図７（ａ）に示すように、本実施形態によれば、本体部１１０の上面に設けられたリブ１１４及びその近傍の上面で押圧、圧縮されたパッキン１２１は、まず溝１２１ａが形成する空間に入り込むように移動（変形）することができ、さらに第２の溝１２４ｂが形成する空間に入り込むように移動（変形）することができる。
FIG. 7A is a vertical cross-sectional view schematically showing the packing 121 in a state where the lid 120 of the Holter electrocardiograph in the present embodiment is closed and the surrounding state.
As shown in FIG. 7A, according to the present embodiment, the ribs 114 provided on the upper surface of the main body 110 and the packing 121 pressed and compressed on the upper surface in the vicinity thereof are first formed by the grooves 121a. It can move (deform) so as to enter, and can also move (deform) so as to enter the space formed by the second groove 124b.
一方で、第１の溝１２４ａ部分では本体部１１０の上面、特にリブ１１４の近傍１１４ａに対して十分な反発力により密着することが可能である。また、リブ１１４を、パッキン１２１の中央を押圧するような位置に配置することで、均等な密着力が得られ、防水性を高めることができる。 On the other hand, the first groove 124a can be in close contact with the upper surface of the main body 110, particularly the vicinity 114a of the rib 114 with a sufficient repulsive force. Further, by arranging the rib 114 at a position where the center of the packing 121 is pressed, an even adhesion can be obtained and the waterproofness can be improved.
つまり、図７（ｂ）に模式的に示すように、リブ１１４による押圧力でのパッキン１２１の変形は容易にしながら、リブ１１４周辺への密着力は十分確保することを可能にしている。その結果、防水性能を実現しながら、軽い力で蓋部１２０を閉じることを可能としているのである。 That is, as schematically shown in FIG. 7B, it is possible to ensure sufficient adhesion to the periphery of the rib 114 while facilitating the deformation of the packing 121 by the pressing force by the rib 114. As a result, the lid 120 can be closed with a light force while realizing waterproof performance.
以上説明したように、本実施形態によれば、開口部を有する医療機器において、開口部の蓋に取り付けたパッキンを、開口部の周囲に密着させて開口部への水の進入を防止する防水構造であって、パッキンの断面形状及びパッキンを取り付ける溝の断面形状を、パッキンの変形が容易になるような形状とする。具体的には、パッキンに溝を設けたり、パッキンを取り付ける溝の一部を深く掘り下げる。このような構成により、蓋を閉じる際に必要な力を軽減しながら、必要な防水性能を実現することが可能となる。 As described above, according to the present embodiment, in a medical device having an opening, waterproofing that prevents the entry of water into the opening by closely attaching the packing attached to the lid of the opening to the periphery of the opening. It is a structure, Comprising: The cross-sectional shape of packing and the cross-sectional shape of the groove | channel which attaches packing are made into a shape which becomes easy to deform | transform a packing. Specifically, a groove is provided in the packing, or a part of the groove in which the packing is attached is deeply dug. With such a configuration, it is possible to achieve the necessary waterproof performance while reducing the force required when closing the lid.
なお、上述の実施形態では、パッキンとパッキンを取り付ける溝の両方を、パッキンの変形を容易にする形状、換言すれば、パッキンに圧縮力が加わった際にパッキンが移動可能な空間を形成する凹部を有する形状とした。しかし、パッキン又はパッキンを取り付ける溝のいずれか一方でのみこの空間を形成するような構成であっても良い。すなわち、第２の溝１２４ｂ又は溝１２１ａのいずれか一方のみを有する構成であっても、図６に示す従来の構成よりも軽い力で蓋部１２０を閉じることが可能となる。また、凹部を設ける位置は、パッキン１２１と溝１２４との間に空間が形成されれば、どの面であっても良い。 In the above-described embodiment, both the packing and the groove for attaching the packing have a shape that facilitates deformation of the packing, in other words, a recess that forms a space in which the packing can move when a compressive force is applied to the packing. It was set as the shape which has. However, it may be configured such that this space is formed only in either one of the packing or the groove for attaching the packing. That is, even with the configuration having only one of the second groove 124b and the groove 121a, the lid portion 120 can be closed with a lighter force than the conventional configuration shown in FIG. Further, the position where the recess is provided may be any surface as long as a space is formed between the packing 121 and the groove 124.
また、上述の実施形態では、パッキンを蓋部に、リブを本体部に設けた構成を説明したが、パッキン（及びパッキンを取り付けるための溝）を本体部に、リブを蓋部に設ける構成であっても良いことは言うまでもない。 Moreover, in the above-mentioned embodiment, although the structure which provided the packing in the cover part and provided the rib in the main-body part was demonstrated, it is the structure which provides a packing (and groove | channel for attaching packing) in a main-body part, and a rib in a cover part. Needless to say, it may be.
Claims (5)
前記蓋部が閉じられた際に、前記開口部を切れ目無く取り囲むように、前記蓋部又は前記本体部の一方に取り付けられたパッキンと、
前記蓋部又は前記本体部の他方に設けられた、前記パッキンを全周に渡って押圧するリブとを有し、
前記蓋部が閉じられていない状態で、前記パッキンと、前記蓋部又は前記本体部の一方の、前記パッキンを取り付けるための溝との間に、パッキンが存在しない空間が形成されるよう、前記パッキンと、前記蓋部又は前記本体部の一方の、前記パッキンを取り付けるための溝の少なくとも一方に、凹部が設けられることを特徴とする医療機器。 A medical device having a body portion having an opening, and an openable / closable lid that covers the opening while preventing water from entering,
When the lid is closed, a packing attached to one of the lid or the main body so as to surround the opening seamlessly; and
A rib that is provided on the other side of the lid or the main body and presses the packing over the entire circumference;
In a state where the lid portion is not closed, a space in which no packing is present is formed between the packing and a groove for attaching the packing on one of the lid portion or the main body portion. A medical device, wherein a recess is provided in at least one of the packing and one of the lid or the main body for attaching the packing.
前記蓋部又は前記本体部の一方の、前記パッキンを取り付けるための溝が、略凸字形状の断面を有することを特徴とする医療機器。 The cross-sectional shape of the packing is substantially square, and the first groove is provided on the surface facing the surface pressed by the rib,
A medical device in which a groove for attaching the packing on one of the lid part or the main body part has a substantially convex cross section.
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| JP2012180131A (en) * | 2012-06-25 | 2012-09-20 | Aitec:Kk | Tank body |
| JP2014158598A (en) * | 2013-02-20 | 2014-09-04 | Juntendo | Underwater sphygmomanometer/electrocardiograph |
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