JP6090826B2 - Eyelid pressure sensor - Google Patents
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- JP6090826B2 JP6090826B2 JP2012178017A JP2012178017A JP6090826B2 JP 6090826 B2 JP6090826 B2 JP 6090826B2 JP 2012178017 A JP2012178017 A JP 2012178017A JP 2012178017 A JP2012178017 A JP 2012178017A JP 6090826 B2 JP6090826 B2 JP 6090826B2
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- 210000000744 eyelid Anatomy 0.000 title claims description 156
- 238000001514 detection method Methods 0.000 claims description 96
- 239000000758 substrate Substances 0.000 claims description 52
- 239000000463 material Substances 0.000 claims description 5
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 210000004087 cornea Anatomy 0.000 description 13
- 238000005259 measurement Methods 0.000 description 11
- 238000009530 blood pressure measurement Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
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- 229920005672 polyolefin resin Polymers 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 210000000795 conjunctiva Anatomy 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 208000030533 eye disease Diseases 0.000 description 1
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- 238000009413 insulation Methods 0.000 description 1
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- 238000010030 laminating Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
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- 229920003023 plastic Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
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- 229920003051 synthetic elastomer Polymers 0.000 description 1
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Description
この発明は、角膜を覆う上眼瞼及び下眼瞼の圧力を検出する場合に用いられる眼瞼圧センサに関するものである。 The present invention relates to an eyelid pressure sensor used for detecting the pressure of an upper eyelid and a lower eyelid covering a cornea.
従来、この種の眼瞼圧センサとしては、例えば特許文献１に開示されるような構成が提案されている。この従来構成においては、長尺状に形成されたフレキシブルな基板の先端部に、圧力を検出するための静電容量型の圧力検出部が設けられている。そして、基板の先端部を上眼瞼と角膜との間の隙間または下眼瞼と角膜との間の隙間に挿入し、圧力検出部を上眼瞼または下眼瞼の内面に接触させた状態で、圧力検出部により上眼瞼または下眼瞼の圧力を検出するようになっている。 Conventionally, as this kind of eyelid pressure sensor, for example, a configuration as disclosed in Patent Document 1 has been proposed. In this conventional configuration, a capacitance-type pressure detection unit for detecting pressure is provided at the tip of a long flexible substrate. Then, insert the tip of the substrate into the gap between the upper eyelid and the cornea or the gap between the lower eyelid and the cornea, and detect the pressure with the pressure detector contacting the inner surface of the upper eyelid or the lower eyelid The pressure of the upper or lower eyelid is detected by the unit.
この従来の眼瞼圧センサにおいては、基板の先端部に設けられた圧力検出部が平板状をなすように構成されている。このため、圧力検出部を上眼瞼または下眼瞼の内面に接触させて、上眼瞼または下眼瞼の圧力を検出する際に、眼瞼が湾曲面状の角膜上に位置して湾曲しているため、上眼瞼または下眼瞼の内面と圧力検出部の表面との間に空間域が生じる。よって、上眼瞼または下眼瞼の圧力が圧力検出部に伝わり難くて、眼瞼圧を正確に検出することができないという問題があった。 In this conventional eyelid pressure sensor, the pressure detector provided at the tip of the substrate is configured to have a flat plate shape. For this reason, when the pressure detector is brought into contact with the inner surface of the upper eyelid or the lower eyelid to detect the pressure of the upper eyelid or the lower eyelid, the eyelid is positioned on the curved cornea and curved, A space region is generated between the inner surface of the upper or lower eyelid and the surface of the pressure detection unit. Therefore, there is a problem that the pressure of the upper eyelid or the lower eyelid is not easily transmitted to the pressure detection unit, and the eyelid pressure cannot be accurately detected.
この発明は、このような従来の技術に存在する問題点に着目してなされたものである。その目的は、圧力検出部に対して眼瞼の圧力を十分に伝えることができて、眼瞼圧を安定かつ正確に検出することができる眼瞼圧センサを提供することにある。 The present invention has been made paying attention to such problems existing in the prior art. An object of the present invention is to provide an eyelid pressure sensor that can sufficiently transmit the eyelid pressure to the pressure detecting unit and can detect the eyelid pressure stably and accurately.
上記の目的を達成するために、この発明は、長尺状に形成されたフレキシブルな基板の先端部の上面に眼瞼の圧力を検出するための圧力検出部を設けるとともに、その圧力検出部を覆うように硬質材料よりなる凸部を設け、前記凸部の表面を球面状に形成し、前記凸部の厚さは１．０〜３．０ｍｍであることを特徴としている。 In order to achieve the above object, the present invention provides a pressure detection unit for detecting the pressure of the eyelid on the upper surface of the distal end portion of a flexible substrate formed in a long shape, and covers the pressure detection unit. Thus, a convex portion made of a hard material is provided , the surface of the convex portion is formed in a spherical shape, and the thickness of the convex portion is 1.0 to 3.0 mm .
従って、この発明の眼瞼圧センサにおいては、基板の先端部を眼瞼と角膜との間の隙間に挿入して、圧力検出部により眼瞼圧を検出する際に、圧力検出部上の凸部が眼瞼の内面に接触される。これにより、眼瞼の内面と圧力検出部の表面との間に空間域が発生することは抑制され、眼瞼の圧力が凸部を介して圧力検出部に対し適正に伝えられる。よって、圧力検出部により眼瞼圧を安定かつ正確に検出することができる。 Therefore, in the eyelid pressure sensor of the present invention, when the tip of the substrate is inserted into the gap between the eyelid and the cornea and the eyelid pressure is detected by the pressure detection unit, the convex portion on the pressure detection unit is the eyelid. It is in contact with the inner surface. Accordingly, the generation of a space region between the inner surface of the eyelid and the surface of the pressure detection unit is suppressed, and the pressure of the eyelid is appropriately transmitted to the pressure detection unit via the convex portion. Therefore, the eyelid pressure can be detected stably and accurately by the pressure detector.
前記の構成において、前記凸部の周縁を断面凸状曲面に形成するとよい。
前記の構成において、前記凸部を硬質合成樹脂によって構成するとよい。
The said structure WHEREIN: It is good to form the periphery of the said convex part in a cross-sectional convex curved surface.
In the configuration of the previous reporting, the convex portion may be configured by hard plastic.
前記の構成において、前記基板の先端部に支持部を形成し、その支持部に前記圧力検出部と凸部とを設けるとよい。 In the above-described configuration, a support portion may be formed at the tip portion of the substrate, and the pressure detection portion and the convex portion may be provided on the support portion .
前記の構成において、温度検出部を前記基板の先端部の下面に設けるとよい。
前記の構成において、前記基板をハンドル兼用のケースに対して出し入れ可能に設けるとよい。
In the configuration described above, the temperature detection unit may be provided on the lower surface of the tip portion of the substrate.
In the above-described configuration, the substrate may be provided so as to be able to be taken in and out of the case serving as a handle.
以上のように、この発明によれば、圧力検出部に対して眼瞼の圧力を十分に伝えることができて、眼瞼圧を安定かつ正確に検出することができるという効果を発揮する。 As described above, according to the present invention, the pressure of the eyelid can be sufficiently transmitted to the pressure detection unit, and the effect that the eyelid pressure can be detected stably and accurately is exhibited.
（第１実施形態）
以下に、この発明を具体化した眼瞼圧センサの第１実施形態を図１〜図９に従って説明する。
(First embodiment)
Hereinafter, a first embodiment of an eyelid pressure sensor embodying the present invention will be described with reference to FIGS.
図１に示すように、この実施形態の眼瞼圧センサ２１は、回路基板２２と、その回路基板２２に図示しない連結部を介して一体状に連結されたフレキシブルな検出基板２３とを備えている。 As shown in FIG. 1, the eyelid pressure sensor 21 of this embodiment includes a circuit board 22 and a flexible detection board 23 that is integrally connected to the circuit board 22 via a connecting portion (not shown). .
回路基板２２は、ガラスエポキシ樹脂，ポリオレフィン樹脂等の硬質の合成樹脂製の薄板よりなる。回路基板２２上には、集積回路２４やコネクタ２５等が搭載されている。集積回路２４は、増幅回路や整流回路を有する。コネクタ２５は後述の眼瞼圧測定制御装置３７と電気接続される。 The circuit board 22 is made of a hard synthetic resin thin plate such as glass epoxy resin or polyolefin resin. On the circuit board 22, an integrated circuit 24, a connector 25, and the like are mounted. The integrated circuit 24 includes an amplifier circuit and a rectifier circuit. The connector 25 is electrically connected to an eyelid pressure measurement control device 37 described later.
検出基板２３は、電気絶縁層であるポリオレフィン樹脂等のフィルムに導体である金属箔を下面側にラミネートして、可撓性を有するとともに長尺状をなすように形成されている。検出基板２３には、回路基板２２側のアーム部２３１と、そのアーム部２３１の先端部に形成されたアーム部２３１よりも幅広の平面円形状をなす支持部２３２とが一体形成されている。検出基板２３の上面には、金属メッシュからなるシート状の導体部材２６がラミネートされている。前記支持部２３２の直径は、２〜１５ｍｍ程度が好ましく、８〜１２ｍｍがさらに好ましい。 The detection substrate 23 is formed so as to be flexible and have a long shape by laminating a metal foil as a conductor on a film such as a polyolefin resin as an electrical insulating layer on the lower surface side. The detection board 23 is integrally formed with an arm part 231 on the circuit board 22 side and a support part 232 having a planar circular shape wider than the arm part 231 formed at the tip of the arm part 231. A sheet-like conductor member 26 made of a metal mesh is laminated on the upper surface of the detection substrate 23. The diameter of the support portion 232 is preferably about 2 to 15 mm, and more preferably 8 to 12 mm.
図１及び図６（ａ）（ｂ）に示すように、前記検出基板２３の支持部２３２の上面には、眼瞼の圧力を検出するための圧力検出部としての静電容量型の圧力検出子２７が積層固定されている。図６（ｂ）に示すように、この圧力検出子２７は、シリコーン・ゲル等の電気絶縁性及び弾性を有する絶縁材２７２を介して積層配置した一対の円形平板状の電極２７１を備えている。一方の電極は、検出基板２３上の前記導体部材２６を介して集積回路２４の高電位側の回路に接続されている。他方の電極は、検出基板２３の前記金属箔を介して集積回路２４の低電位側（アース側）の回路に接続されている。そして、圧力検出子２７に対する加圧に伴って一対の電極２７１間の間隔が変化したとき、両電極２７１間の静電容量が変化して、その静電容量の変化に応じた信号が圧力検出子２７から出力される。 As shown in FIGS. 1 and 6A and 6B, on the upper surface of the support portion 232 of the detection substrate 23, a capacitive pressure detector as a pressure detection portion for detecting the pressure of the eyelids. 27 is laminated and fixed. As shown in FIG. 6B, the pressure detector 27 includes a pair of circular plate-like electrodes 271 arranged in a stacked manner via an insulating material 272 having electrical insulation and elasticity such as silicone gel. . One electrode is connected to a circuit on the high potential side of the integrated circuit 24 through the conductor member 26 on the detection substrate 23. The other electrode is connected to the low potential side (ground side) circuit of the integrated circuit 24 through the metal foil of the detection substrate 23. And when the space | interval between a pair of electrodes 271 changes with the pressurization with respect to the pressure sensor 27, the electrostatic capacitance between both the electrodes 271 changes, and the signal according to the change of the electrostatic capacitance is a pressure detection. Output from the child 27.
図１、図５及び図６に示すように、前記検出基板２３の支持部２３２の上面には、ポリアセタール，ポリカーボネイト，ポリエチレン，ポリプロピレン，塩化ビニール，エポキシ樹脂等の硬質合成樹脂や銅，アルミ合金等の金属，すなわち硬質材料よりなる凸部としての圧力受け板（以下、単に受け板という）２８が圧力検出子２７を覆うように接着によって設けられている。受け板２８は、圧力検出子２７よりも大径の平面円形状をなすように構成されている。この受け板２８は、前記支持部２３２と同径、あるいは支持部２３２よりやや小径であることが好ましく、従って、その直径は、２〜１５ｍｍ程度が好ましく、８〜１２ｍｍがさらに好ましい。 As shown in FIGS. 1, 5 and 6, on the upper surface of the support portion 232 of the detection substrate 23, hard synthetic resin such as polyacetal, polycarbonate, polyethylene, polypropylene, vinyl chloride, epoxy resin, copper, aluminum alloy, etc. A pressure receiving plate (hereinafter simply referred to as a receiving plate) 28 made of a metal, that is, a hard material is provided by adhesion so as to cover the pressure detector 27. The receiving plate 28 is configured to have a planar circular shape having a larger diameter than the pressure detector 27. The receiving plate 28 preferably has the same diameter as the support portion 232 or slightly smaller than the support portion 232. Therefore, the diameter is preferably about 2 to 15 mm, and more preferably 8 to 12 mm.
図６に示すように、受け板２８の外周縁は断面凸状曲面をなすように形成されるとともに、受け板２８の表面は球面状をなすように形成されている。受け板２８の厚さは、１．０〜３．０ｍｍ程度が好ましく、１．２〜１．５ｍｍ程度がさらに好ましい。そして、図９に示すように、検出基板２３の先端部の支持部２３２を上眼瞼または下眼瞼との間の隙間に挿入して、圧力検出子２７により眼瞼圧を検出する際に、受け板２８が上眼瞼または下眼瞼の内面に接触される。この状態で、上眼瞼または下眼瞼の圧力が受け板２８を介して圧力検出子２７に伝えられる。 As shown in FIG. 6, the outer peripheral edge of the backing plate 28 is formed to have a convex curved surface, and the surface of the backing plate 28 is formed to have a spherical shape. The thickness of the backing plate 28 is preferably about 1.0 to 3.0 mm, and more preferably about 1.2 to 1.5 mm. Then, as shown in FIG. 9, when the support part 232 at the tip of the detection substrate 23 is inserted into the gap between the upper eyelid or the lower eyelid and the eyelid pressure is detected by the pressure detector 27, the receiving plate 28 is in contact with the inner surface of the upper or lower eyelid. In this state, the pressure of the upper eyelid or the lower eyelid is transmitted to the pressure detector 27 via the receiving plate 28.
図１及び図２に示すように、前記検出基板２３の先端部に位置する支持部２３２の下面には、眼内温度を検出するための温度検出子２９が圧力検出子２７と対応する同位置となるように設けられている。検出基板２３の下面には、温度検出子２９をコネクタ２５に接続するための導体３０が延長配置されている。そして、圧力検出子２７により眼瞼圧を検出する際に、その眼瞼圧の検出と同時に、圧力検出子２７と同位置において温度検出子２９により眼内温度が検出されて、その検出信号が出力される。なお、温度検出子２９及び導体３０と前記金属箔との間には絶縁部（図示しない）が介在されている。 As shown in FIGS. 1 and 2, the temperature detector 29 for detecting the intraocular temperature is located at the same position corresponding to the pressure detector 27 on the lower surface of the support portion 232 located at the distal end portion of the detection substrate 23. It is provided to become. A conductor 30 for connecting the temperature detector 29 to the connector 25 is extended on the lower surface of the detection board 23. When the eyelid pressure is detected by the pressure detector 27, the intraocular temperature is detected by the temperature detector 29 at the same position as the pressure detector 27 simultaneously with the detection of the eyelid pressure, and the detection signal is output. The An insulating portion (not shown) is interposed between the temperature detector 29 and the conductor 30 and the metal foil.
前記圧力検出子２７，前記金属箔，導電部材２２，温度検出子２９を含む検出基板２３の厚さは、０．３〜０．７ｍｍ程度が好ましい。
図１に示すように、前記回路基板２２及び検出基板２３は、ハンドル兼用のケース３１に対して長さ方向へ移動可能に装着され、検出基板２３の部分がケース３１の先端の開口３１１から出し入れされる。ケース３１の外側面には、検出基板２３に連結されて同検出基板２３をケース３１に対して出し入れするための操作ノブ３２が設けられている。そして、眼瞼圧センサ２１の検査使用時には、操作ノブ３２を一方向に移動操作することにより、検出基板２３がケース３１内から突出した位置に移動されて、ケース３１を検査時のハンドルとして用いることができる。また、眼瞼圧センサ２１の不使用時には、操作ノブ３２を他方向に移動操作することにより、検出基板２３がケース３１内に没入した位置に移動されて保管される。
The thickness of the detection substrate 23 including the pressure detector 27, the metal foil, the conductive member 22, and the temperature detector 29 is preferably about 0.3 to 0.7 mm.
As shown in FIG. 1, the circuit board 22 and the detection board 23 are attached to a handle 31 serving as a handle so that the circuit board 22 and the detection board 23 can move in the length direction. Is done. An operation knob 32 is provided on the outer surface of the case 31 so as to be connected to the detection board 23 and put the detection board 23 into and out of the case 31. When the eyelid pressure sensor 21 is used for inspection, the operation knob 32 is moved in one direction to move the detection board 23 to a position protruding from the inside of the case 31, and the case 31 is used as a handle for inspection. Can do. Further, when the eyelid pressure sensor 21 is not used, the detection board 23 is moved and stored in the case 31 by moving the operation knob 32 in the other direction.
図１及び図３に示すように、前記眼瞼圧センサ２１には、眼瞼圧の検出時に検出基板２３の先端部に被覆状態に装着して使用するカバー３３、及びそのカバー３３を検出基板２３の先端部に装着するための装着シート３４が使い捨ての備品として用意されている。図３に示すように、このカバー３３及び装着シート３４は殺菌処理されて、装着シート３４の先端にカバー３３を被せた状態で、アルミ箔や滅菌パックからなる収納袋体３５内に密封して収納されている。そして、眼瞼圧の検出時には、収納袋体３５を開封するとともに、その収納袋体３５内からカバー３３及び装着シート３４を取り出して使用するようになっている。 As shown in FIGS. 1 and 3, the eyelid pressure sensor 21 includes a cover 33 that is used by being attached to the distal end portion of the detection substrate 23 when detecting eyelid pressure, and the cover 33 is attached to the detection substrate 23. A mounting sheet 34 to be mounted on the distal end is prepared as a disposable fixture. As shown in FIG. 3, the cover 33 and the mounting sheet 34 are sterilized and sealed in a storage bag body 35 made of aluminum foil or a sterilization pack with the cover 33 placed on the tip of the mounting sheet 34. It is stored. When the eyelid pressure is detected, the storage bag body 35 is opened, and the cover 33 and the mounting sheet 34 are taken out from the storage bag body 35 and used.
前記カバー３３は、合成ゴムよりなる絶縁性及び伸縮性を有する材料により一端を開口した袋状をなすように形成されている。装着シート３４は、絶縁性及び可撓性を有する合成樹脂や紙材により長尺状をなすように形成されている。そして、図４及び図５に示すように、眼瞼圧センサ２１による眼瞼圧の検出に先立って、装着シート３４の先端にカバー３３が被せられた状態で、検出基板２３の先端部が装着シート３４の上面に沿ってカバー３３内に挿入される。その後、装着シート３４がカバー３３内から抜き取られることにより、図７に示すように、カバー３３が収縮されて検出基板２３の先端の支持部２３２及びアーム部２３１の先端部に密着し、そのカバー３３によって圧力検出子２７、受け板２８及び温度検出子２９が被覆される。 The cover 33 is formed in a bag shape having one end opened by an insulating and stretchable material made of synthetic rubber. The mounting sheet 34 is formed to have a long shape with a synthetic resin or paper material having insulation and flexibility. 4 and 5, prior to detection of eyelid pressure by the eyelid pressure sensor 21, the tip of the detection substrate 23 is attached to the attachment sheet 34 in a state where the cover 33 is put on the tip of the attachment sheet 34. Is inserted into the cover 33 along the upper surface. Thereafter, the mounting sheet 34 is pulled out from the cover 33, and as shown in FIG. 7, the cover 33 is contracted to closely contact the support portion 232 at the front end of the detection substrate 23 and the front end portion of the arm portion 231. The pressure detector 27, the receiving plate 28, and the temperature detector 29 are covered by 33.
図８に示すように、前記眼瞼圧センサ２１による眼瞼圧の検出時には、眼瞼圧センサ２１のコネクタ２５に信号線３６を介してコンピュータシステムからなる眼瞼圧測定制御装置３７が接続される。この眼瞼圧測定制御装置３７には、図示はしないディスプレイ等の表示手段やプリンタ等の出力手段が接続され、眼瞼圧センサ２１から出力された検出信号に基づいて眼瞼圧が測定されて、その測定結果が表示手段や出力手段に出力される。 As shown in FIG. 8, when detecting eyelid pressure by the eyelid pressure sensor 21, an eyelid pressure measurement control device 37 comprising a computer system is connected to the connector 25 of the eyelid pressure sensor 21 via a signal line 36. The eyelid pressure measurement control device 37 is connected to display means such as a display (not shown) and output means such as a printer, and the eyelid pressure is measured based on the detection signal output from the eyelid pressure sensor 21, and the measurement is performed. The result is output to display means and output means.
次に、前記のように構成された眼瞼圧センサの作用を説明する。
この眼瞼圧センサ２１を用いて測定対象者の眼瞼圧を測定する場合には、図８に示すように、眼瞼圧センサ２１のコネクタ２５に信号線３６を介して眼瞼圧測定制御装置３７を接続する。また、眼瞼圧測定制御装置３７には、図示はしないディスプレイ等の表示手段やプリンタ等の出力手段を接続する。さらに、図１に示すように、眼瞼圧センサ２１におけるケース３１上の操作ノブ３２を操作して、検出基板２３をケース３１内から突出した位置に移動させる。
Next, the operation of the eyelid pressure sensor configured as described above will be described.
When the eyelid pressure of the measurement subject is measured using the eyelid pressure sensor 21, as shown in FIG. 8, the eyelid pressure measurement control device 37 is connected to the connector 25 of the eyelid pressure sensor 21 via a signal line 36. To do. Further, the eyelid pressure measurement control device 37 is connected to display means such as a display (not shown) and output means such as a printer. Further, as shown in FIG. 1, the operation knob 32 on the case 31 in the eyelid pressure sensor 21 is operated to move the detection substrate 23 to a position protruding from the case 31.
そして、図３〜図５に示すように、眼瞼圧センサ２１による眼瞼圧の検出に先立って、カバー３３及び装着シート３４を収納袋体３５内から取り出し、装着シート３４の先端にカバー３３が被せられたままの状態で、検出基板２３の先端部を装着シート３４の上面に沿ってカバー３３内に挿入する。その後、装着シート３４をカバー３３内から抜き取ると、図７に示すように、カバー３３が収縮されて検出基板２３の支持部２３２及びアーム部２３１の先端部に密着し、そのカバー３３によって圧力検出子２７、受け板２８及び温度検出子２９が被覆される。 Then, as shown in FIGS. 3 to 5, prior to detection of eyelid pressure by the eyelid pressure sensor 21, the cover 33 and the mounting sheet 34 are taken out from the storage bag body 35 and the tip of the mounting sheet 34 is covered with the cover 33. In the state as it is, the tip of the detection substrate 23 is inserted into the cover 33 along the upper surface of the mounting sheet 34. Thereafter, when the mounting sheet 34 is pulled out from the cover 33, as shown in FIG. 7, the cover 33 is contracted and comes into close contact with the support portion 232 of the detection substrate 23 and the distal end portion of the arm portion 231, and the cover 33 detects the pressure. The child 27, the receiving plate 28, and the temperature detector 29 are covered.
この状態で、図９に示すように、測定対象者の上眼瞼の眼瞼圧を測定するために、検出基板２３の先端の支持部２３２を上眼瞼と角膜との間の隙間に挿入して、圧力検出子２７を覆う受け板２８を上眼瞼の内面に接触させる。そして、上眼瞼の圧力が受け板２８を介して圧力検出子２７に伝えられて、圧力検出子２７により上眼瞼の眼瞼圧を示す静電容量の値が検出され、その検出信号が集積回路２４及びコネクタ２５を介して眼瞼圧測定制御装置３７に出力される。 In this state, as shown in FIG. 9, in order to measure the eyelid pressure of the upper eyelid of the measurement subject, the support portion 232 at the tip of the detection substrate 23 is inserted into the gap between the upper eyelid and the cornea, A receiving plate 28 covering the pressure detector 27 is brought into contact with the inner surface of the upper eyelid. Then, the pressure of the upper eyelid is transmitted to the pressure detector 27 via the receiving plate 28, and the capacitance value indicating the eyelid pressure of the upper eyelid is detected by the pressure detector 27, and the detection signal is used as the integrated circuit 24. And output to the eyelid pressure measurement control device 37 via the connector 25.
また、この眼瞼圧の検出と同時に、圧力検出子２７と同位置において温度検出子２９により眼内温度が検出され、その検出信号がコネクタ２５を介して眼瞼圧測定制御装置３７に出力される。そして、眼瞼圧測定制御装置３７において、両検出信号に基づいて眼内温度に即した上眼瞼の眼瞼圧の値が算出される。すなわち、圧力検出子２７は静電容量の多寡に従うレベルの検出信号を出力するものであるため、同一圧力であっても高温になるほど高い検出値が得られる。一方、検出温度は、個人差による体温の相違が存在する。このため、眼瞼圧の検出と同時に眼内温度も検出して、眼瞼圧の検出値に検出温度に従う補正を加えれば、正確な眼瞼圧が算出される。そして、その算出結果がディスプレイ等の表示手段やプリンタ等の出力手段に出力される。 Simultaneously with the detection of the eyelid pressure, the temperature detector 29 detects the intraocular temperature at the same position as the pressure detector 27, and the detection signal is output to the eyelid pressure measurement control device 37 via the connector 25. Then, the eyelid pressure measurement control device 37 calculates the value of the eyelid pressure of the upper eyelid according to the intraocular temperature based on both detection signals. That is, since the pressure detector 27 outputs a detection signal having a level according to the capacitance, a higher detection value can be obtained at a higher temperature even at the same pressure. On the other hand, the detected temperature has a difference in body temperature due to individual differences. Therefore, if the intraocular temperature is detected simultaneously with the detection of the eyelid pressure, and the correction according to the detected temperature is added to the detection value of the eyelid pressure, the accurate eyelid pressure is calculated. Then, the calculation result is output to display means such as a display or output means such as a printer.
その後、同一測定対象者の下眼瞼の眼瞼圧を測定する場合には、検出基板２３の先端の支持部２３２を下眼瞼との間の隙間に挿入すれば、前記上眼瞼の眼瞼圧の測定時と同様に、圧力検出子２７により眼瞼圧が検出されると同時に、温度検出子２９により眼内温度が検出される。そして、両検出信号に基づいて眼瞼圧測定制御装置３７により眼内温度に即した下眼瞼の眼瞼圧が測定される。 Thereafter, when measuring the eyelid pressure of the lower eyelid of the same measurement subject, if the support portion 232 at the tip of the detection substrate 23 is inserted into the gap between the lower eyelid, the eyelid pressure of the upper eyelid is measured. In the same manner as described above, the eyelid pressure is detected by the pressure detector 27, and the intraocular temperature is detected by the temperature detector 29. Based on both detection signals, the eyelid pressure measurement control device 37 measures the eyelid pressure of the lower eyelid corresponding to the intraocular temperature.
また、測定ごとに使用済みのカバー３３を検出基板２３の先端部から取り外した後、新しいカバー３３を測定ごとに付け替えることによって眼病等の感染を防止することができる。 In addition, after removing the used cover 33 from the tip of the detection substrate 23 for each measurement, it is possible to prevent infection such as eye disease by replacing the new cover 33 for each measurement.
従って、この実施形態によれば、以下のような効果を得ることができる。
（１） この眼瞼圧センサにおいては、長尺状に形成されたフレキシブルな検出基板２３の先端部に、圧力を検出するための圧力検出子２７が設けられている。また、この圧力検出子２７を覆うように受け板２８が設けられている。このため、検出基板２３の先端部を眼瞼と角膜との間の隙間に挿入して、圧力検出子２７により眼瞼圧を検出する際には、圧力検出子２７上の受け板２８が眼瞼の内面に接触される。これにより、眼瞼の内面と圧力検出子２７の表面との間に空間域が発生することを防止でき、眼瞼の圧力が受け板２８を介して圧力検出子２７に対し適正に伝えられる。よって、圧力検出子２７により眼瞼圧を安定かつ正確に検出することができる。
Therefore, according to this embodiment, the following effects can be obtained.
(1) In this eyelid pressure sensor, a pressure detector 27 for detecting pressure is provided at the distal end of a flexible detection board 23 formed in a long shape. Further, a receiving plate 28 is provided so as to cover the pressure detector 27. Therefore, when the tip of the detection substrate 23 is inserted into the gap between the eyelid and the cornea and the eyelid pressure is detected by the pressure detector 27, the receiving plate 28 on the pressure detector 27 is attached to the inner surface of the eyelid. Touched. Thereby, it is possible to prevent a space region from being generated between the inner surface of the eyelid and the surface of the pressure detector 27, and the pressure of the eyelid is properly transmitted to the pressure detector 27 via the receiving plate 28. Therefore, the eyelid pressure can be detected stably and accurately by the pressure detector 27.
（２） この眼瞼圧センサにおいては、前記受け板２８の周縁が断面凸状曲面に形成されている。このため、検出基板２３の先端部を眼瞼と角膜との間の隙間に出し入れする際や眼瞼の圧力を検出する際に、眼瞼の内面と受け板２８の周縁との接触による不快感等の負担が測定対象者にかかるおそれを防止することができる。 (2) In this eyelid pressure sensor, the peripheral edge of the backing plate 28 is formed in a convex curved surface. For this reason, when the front-end | tip part of the detection board | substrate 23 is taken in / out to the clearance gap between the eyelid and the cornea, or when detecting the pressure of the eyelid, the burden of discomfort etc. by contact with the inner surface of the eyelid and the periphery of the receiving plate 28 Can prevent the measurement subject from being affected.
（３） この眼瞼圧センサにおいては、前記受け板２８の表面が球面状に形成されている。このため、検出基板２３の先端部を眼瞼と角膜との間の隙間に挿入した際に、球面状をなす受け板２８の表面を、眼瞼の内面に対して、空間域がほとんど生じることなく、かつ測定対象者が不快さを感じることなく良好に接触させることができる。 (3) In this eyelid pressure sensor, the surface of the backing plate 28 is formed in a spherical shape. For this reason, when the distal end portion of the detection substrate 23 is inserted into the gap between the eyelid and the cornea, the surface of the receiving plate 28 having a spherical shape is hardly generated with respect to the inner surface of the eyelid, And it can contact favorably, without a measurement subject feeling uncomfortable.
（４） この眼瞼圧センサにおいては、前記受け板２８が硬質合成樹脂によって構成されている。このため、受け板２８に弾性変形を生じるおそれがなく、その受け板２８を介して眼瞼の圧力を圧力検出子２７に対して適正に伝えることができる。 (4) In this eyelid pressure sensor, the backing plate 28 is made of a hard synthetic resin. For this reason, there is no possibility that the receiving plate 28 is elastically deformed, and the pressure of the eyelid can be properly transmitted to the pressure detector 27 via the receiving plate 28.
（５） この眼瞼圧センサにおいては、前記検出基板２３の先端部に平面円形状の支持部２３２が形成され、その支持部２３２に同じく円形状の受け板２８が設けられている。このため、検出基板２３の先端部を測定対象者に負担がかかることなく、眼瞼と角膜との間に容易に出し入れすることができる。 (5) In this eyelid pressure sensor, a planar circular support portion 232 is formed at the distal end portion of the detection substrate 23, and the circular receiving plate 28 is also provided on the support portion 232. For this reason, the front-end | tip part of the detection board | substrate 23 can be easily taken in / out between the eyelid and the cornea, without applying a burden on a measurement subject.
（６） この眼瞼圧センサにおいては、前記圧力検出子２７が前記検出基板２３の一側面に設けられている。そして、この検出基板２３の他側面には温度検出子２９が設けられている。このため、圧力検出子２７による眼瞼圧の検出時に、温度検出子２９により眼内温度を同時に検出することができる。よって、眼瞼圧の検出結果を眼内温度に基づいて適切に補正して、測定対象者ごとの眼内温度に即した眼瞼圧を正確に測定することができる。 (6) In this eyelid pressure sensor, the pressure detector 27 is provided on one side surface of the detection substrate 23. A temperature detector 29 is provided on the other side surface of the detection substrate 23. For this reason, when the eyelid pressure is detected by the pressure detector 27, the intraocular temperature can be detected simultaneously by the temperature detector 29. Therefore, the detection result of eyelid pressure can be appropriately corrected based on the intraocular temperature, and the eyelid pressure corresponding to the intraocular temperature for each measurement target can be accurately measured.
（７） この眼瞼圧センサにおいては、前記検出基板２３がハンドル兼用のケース３１に対して出し入れ可能に設けられている。このため、眼瞼圧センサ２１の使用時には、検出基板２３をケース３１から突出させた状態で、ケース３１をハンドルとして把持して、眼瞼圧の検出を容易に行うことができる。また、眼瞼圧センサ２１の不使用時には、検出基板２３をケース３１内に没入させて、嵩張ることなく衛生的に保管することができる。 (7) In this eyelid pressure sensor, the detection substrate 23 is provided so as to be able to be taken in and out of the case 31 also serving as a handle. For this reason, when the eyelid pressure sensor 21 is used, it is possible to easily detect the eyelid pressure by holding the case 31 as a handle with the detection substrate 23 protruding from the case 31. Further, when the eyelid pressure sensor 21 is not used, the detection substrate 23 can be immersed in the case 31 and stored hygienically without being bulky.
（第２実施形態）
次に、この発明を具体化した眼瞼圧センサの第２実施形態を前記第１実施形態と異なる部分を中心に説明する。
(Second Embodiment)
Next, a second embodiment of the eyelid pressure sensor embodying the present invention will be described with a focus on differences from the first embodiment.
この第２実施形態においては、図１０に示すように、圧力検出子２７を覆う受け板２８が所定板厚の円板状に形成され、その表面がフラット状をなしている。そして、受け板２８の外周縁が断面凸状曲面をなすように形成されている。 In the second embodiment, as shown in FIG. 10, a receiving plate 28 that covers the pressure detector 27 is formed in a disc shape having a predetermined plate thickness, and the surface thereof is flat. And the outer periphery of the receiving plate 28 is formed so that a cross-section convex curved surface may be made.
従って、この第２実施形態によれば、前記第１実施形態における（１）、（２）及び（４）〜（７）に記載の効果とほぼ同様な効果を得ることができる。また、この第２実施形態によれば、以下の効果を得ることができる。 Therefore, according to the second embodiment, substantially the same effects as those described in (1), (2) and (4) to (7) in the first embodiment can be obtained. Further, according to the second embodiment, the following effects can be obtained.
（８） この眼瞼圧センサにおいては、受け板２８が平板状に形成されているため、受け板２８の製造や支持部２３２への固着が容易である。
（第３実施形態）
次に、この発明を具体化した眼瞼圧センサの第３実施形態を前記第１実施形態と異なる部分を中心に説明する。
(8) In this eyelid pressure sensor, since the receiving plate 28 is formed in a flat plate shape, the receiving plate 28 can be easily manufactured and fixed to the support portion 232.
(Third embodiment)
Next, a third embodiment of the eyelid pressure sensor embodying the present invention will be described with a focus on differences from the first embodiment.
この第３実施形態においては、図１１に示すように、検出基板２３の先端に支持部２３２が円弧状に延びるように形成されている。支持部２３２の上面には、複数の圧力検出子２７が間隔をおいて配置されている。支持部２３２の下面には、複数の温度検出子２９が圧力検出子２７と同位置になるように配置されている。支持部２３２の上面には、円弧状の受け板２８が各圧力検出子２７を覆うように設けられている。受け板２８の外周縁は断面凸状曲面をなすように形成されるとともに、各受け板２８の表面は球面状をなすように形成されている。 In the third embodiment, as shown in FIG. 11, a support portion 232 is formed at the tip of the detection substrate 23 so as to extend in an arc shape. A plurality of pressure detectors 27 are arranged on the upper surface of the support portion 232 at intervals. On the lower surface of the support portion 232, a plurality of temperature detectors 29 are arranged at the same position as the pressure detectors 27. An arc-shaped receiving plate 28 is provided on the upper surface of the support portion 232 so as to cover each pressure detector 27. The outer peripheral edge of the receiving plate 28 is formed to have a convex curved surface, and the surface of each receiving plate 28 is formed to have a spherical shape.
そして、眼瞼圧の測定に際しては、各圧力検出子２７及び各温度検出子２９から検出信号が出力される。このため、眼瞼の異なる位置の圧力を測定できて、圧力分布を認識できる。 When the eyelid pressure is measured, detection signals are output from the pressure detectors 27 and the temperature detectors 29. For this reason, it is possible to measure the pressure at different positions of the eyelid and recognize the pressure distribution.
従って、この第３実施形態によれば、前記第１実施形態における（１）〜（７）に記載の効果に加えて、以下のような効果を得ることができる。
（９） この実施形態の眼瞼圧センサにおいては、検出基板２３の先端部に複数の圧力検出子２７及び温度検出子２９が同位置で並設されている。このため、検出基板２３の先端部を上眼瞼または下眼瞼と角膜との間に１度挿入するのみで、上眼瞼または下眼瞼の複数箇所の眼瞼圧を同時に測定することができて、圧力分布を認識でき、眼瞼圧をより適切に測定できる。
Therefore, according to the third embodiment, in addition to the effects described in (1) to (7) in the first embodiment, the following effects can be obtained.
(9) In the eyelid pressure sensor of this embodiment, a plurality of pressure detectors 27 and temperature detectors 29 are arranged in parallel at the tip of the detection substrate 23. For this reason, it is possible to simultaneously measure the eyelid pressures at a plurality of locations on the upper or lower eyelid by inserting the tip of the detection substrate 23 once between the upper eyelid or the lower eyelid and the cornea, and the pressure distribution. And eyelid pressure can be measured more appropriately.
（変更例）
なお、この実施形態は、次のように変更して具体化することも可能である。
・ 検出基板２３の支持部２３２の裏面（受け板２８とは反対側の面、すなわち角膜に当たる面）を角膜・結膜の表面形状に沿うことができる凹面形状に形成すること。
(Example of change)
In addition, this embodiment can also be changed and embodied as follows.
The back surface of the support portion 232 of the detection substrate 23 (the surface opposite to the receiving plate 28, that is, the surface that contacts the cornea) is formed in a concave shape that can follow the surface shape of the cornea / conjunctiva.
・ 検出基板２３の基端の一部及び回路基板２２を覆うようにハンドル兼用の固定ケースを取り付けるとともに、眼瞼圧センサ２１の不使用時に、固定ケースから露出した検出基板２３の部分にキャップを着脱可能に被覆装着するように構成すること。 A fixed case serving as a handle is attached so as to cover a part of the base end of the detection board 23 and the circuit board 22, and a cap is attached to and removed from the part of the detection board 23 exposed from the fixed case when the eyelid pressure sensor 21 is not used. Construct so that it can be sheathed.
・ 圧力検出子２７として、前記実施形態とは異なるタイプのもの、例えば圧電素子を用いたものを使用すること。
・ アーム部２３１の先端部の支持部２３２を円形状以外の形状、例えば長方形，正方形等の四角形や六角形等の多角形、あるいは楕円形等に変更すること。これらの場合、支持部２３２は、その付け根部から先端までの距離が２〜１５ｍｍが好ましく、８〜１２ｍｍがより好ましい。
The pressure detector 27 is of a type different from that of the above embodiment, for example, using a piezoelectric element.
-Changing the support portion 232 at the tip of the arm portion 231 to a shape other than a circular shape, for example, a rectangle such as a rectangle or a square, a polygon such as a hexagon, or an ellipse. In these cases, the support portion 232 preferably has a distance from the base portion to the tip of 2 to 15 mm, more preferably 8 to 12 mm.
・ 温度検出子２９を眼瞼の温度検出が可能であって、圧力検出子２７の位置から外れた位置に設けること。
・ 圧力検出子２７と温度検出子２９とを基板２３の支持部２３２の上面に重ねて設けること。
The temperature detector 29 is provided at a position that can detect the temperature of the eyelid and is out of the position of the pressure detector 27.
The pressure detector 27 and the temperature detector 29 are provided so as to overlap the upper surface of the support portion 232 of the substrate 23.
（別の技術的思想）
さらに、上記実施形態により把握される技術的思想について、以下にそれらの効果とともに記載する。
(Another technical idea)
Furthermore, the technical idea grasped | ascertained by the said embodiment is described with those effects below.
（Ａ） 長尺状に形成されたフレキシブルな基板の先端部に圧力を検出するための圧力検出部を設けた眼瞼圧センサにおいて、
前記圧力検出部と同位置には温度検出部を設けたことを特徴とする眼瞼圧センサ。
(A) In an eyelid pressure sensor provided with a pressure detection unit for detecting pressure at the tip of a flexible substrate formed in a long shape,
An eyelid pressure sensor comprising a temperature detection unit at the same position as the pressure detection unit.
この構成によれば、圧力検出部による眼瞼圧の検出時に、圧力検出部と同位置において温度検出部により眼内温度を同時に検出することができる。よって、眼瞼圧及び眼内温度の検出結果に基づいて、測定対象者ごとの眼内温度に即した眼瞼圧を測定することができる。 According to this configuration, when the eyelid pressure is detected by the pressure detection unit, the intraocular temperature can be simultaneously detected by the temperature detection unit at the same position as the pressure detection unit. Therefore, based on the detection results of eyelid pressure and intraocular temperature, it is possible to measure the eyelid pressure corresponding to the intraocular temperature of each measurement subject.
（Ｂ） 前記圧力検出部を基板の一側面に設けるとともに、前記温度検出部を基板の他側面に設けたことを特徴とする前記技術的思想（Ａ）項に記載の眼瞼圧センサ。
この構成によれば、圧力検出部と温度検出部とを基板の両側面の同一位置に相互干渉することなく容易に配置することができる。
(B) The eyelid pressure sensor according to item (A), wherein the pressure detector is provided on one side of the substrate and the temperature detector is provided on the other side of the substrate.
According to this configuration, the pressure detection unit and the temperature detection unit can be easily arranged without interfering with each other at the same position on both side surfaces of the substrate.
２１…眼瞼圧センサ、２３…検出基板、２３２…支持部、２７…圧力検出部、２８…凸子２９…温度検出部、３１…ケース。 DESCRIPTION OF SYMBOLS 21 ... Eyelid pressure sensor, 23 ... Detection board | substrate, 232 ... Support part, 27 ... Pressure detection part, 28 ... Convex 29 ... Temperature detection part, 31 ... Case
Claims (6)
前記凸部の表面を球面状に形成し、前記凸部の厚さは１．０〜３．０ｍｍであることを特徴とする眼瞼圧センサ。 While providing a pressure detection unit for detecting the pressure of the eyelids on the upper surface of the tip of the flexible substrate formed in a long shape, a convex part made of a hard material is provided so as to cover the pressure detection unit ,
An eyelid pressure sensor characterized in that the surface of the convex part is formed in a spherical shape, and the thickness of the convex part is 1.0 to 3.0 mm .
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| US5179953A (en) * | 1991-08-27 | 1993-01-19 | Jermik Systems, Ltd. | Portable diurnal intraocular pressure recording system |
| CN101466299B (en) * | 2006-04-26 | 2011-11-02 | 东弗吉尼亚医学院 | Systems and methods for monitoring and controlling internal pressure of an eye or body part |
| JP5276283B2 (en) * | 2007-06-15 | 2013-08-28 | 株式会社メニコン | Eyelid pressure sensor, eyelid pressure measuring device |
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