JP2612296B2 - Ophthalmic instruments - Google Patents
Ophthalmic instrumentsInfo
- Publication number
- JP2612296B2 JP2612296B2 JP63067811A JP6781188A JP2612296B2 JP 2612296 B2 JP2612296 B2 JP 2612296B2 JP 63067811 A JP63067811 A JP 63067811A JP 6781188 A JP6781188 A JP 6781188A JP 2612296 B2 JP2612296 B2 JP 2612296B2
- Authority
- JP
- Japan
- Prior art keywords
- eye
- nozzle
- air pulse
- measuring
- germicidal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Eye Examination Apparatus (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、被検眼に対して離反接近される測定部を有
する眼科器械の改良に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an ophthalmic instrument having a measurement unit which is separated from and approached to an eye to be examined.
従来の技術 従来から、被検眼に対して離反接近される測定部を有
する眼科器械として、たとえば、非接触式眼圧計が知ら
れている。この非接触式眼圧計は、その測定部に被検眼
にエアパルスを吹き付けて眼圧を測定するエアパルス放
出系を有しており、そのエアパルスはノズルから噴射さ
れるものとなっている。2. Description of the Related Art Conventionally, for example, a non-contact tonometer has been known as an ophthalmic instrument having a measurement unit which is separated from and approached to an eye to be examined. This non-contact type tonometer has an air pulse emission system for measuring an intraocular pressure by blowing an air pulse to the eye to be examined on a measurement part thereof, and the air pulse is ejected from a nozzle.
発明が解決しようとする課題 ところで、この従来の非接触式眼圧計は、ノズルを被
検眼に近接させて空気等のエアパルスを被検眼に噴射さ
せて測定を行なう構成であるので、エアパルス噴射時
に、被検眼の涙液、目やにが飛散してノズルに付着する
ことがあり、この涙液、目やに、その他の異物の付着に
基づきノズル部が雑菌により汚染され、この細菌汚染さ
れた非接触式眼圧計を用いて、眼圧測定を行なうと二次
感染を招く恐れがある。そこで、アルコールを浸した脱
脂綿等でそのノズル部を消毒することが考えられるが、
非接触式眼圧計はノズル部の設置精度が極めて高く、通
常、手で触ることが厳禁されており、手作業の消毒を極
めて慎重にかつ注意して行なわなければならず、不便で
ある。また、測定を開始する前に拭き忘れることもあ
る。Problems to be Solved by the Invention By the way, this conventional non-contact tonometer has a configuration in which a nozzle is brought close to the eye to be inspected and an air pulse such as air is ejected to the eye to be measured to perform measurement. The tears of the eye to be examined and the eyes and eyes may scatter and adhere to the nozzle. The nozzle part is contaminated by various bacteria based on the adhesion of the tears and eyes and other foreign substances, and the bacteria-contaminated non-contact tonometer. When intraocular pressure measurement is performed using, there is a possibility that secondary infection may be caused. Therefore, it is conceivable to disinfect the nozzle part with absorbent cotton soaked with alcohol,
The non-contact tonometer has a very high installation accuracy of the nozzle portion and is usually strictly forbidden to touch with the hand, and manual disinfection must be performed very carefully and carefully, which is inconvenient. Also, the user may forget to wipe before starting the measurement.
そこで、本発明は、測定者の手を煩わせることなく、
しかも、少なくとも測定直前まで継続してノズル部の殺
菌を行なうことのできる眼科器械を提供することを目的
とする。Therefore, the present invention, without bothering the measurer,
Moreover, an object of the present invention is to provide an ophthalmic instrument capable of continuously sterilizing the nozzle portion at least immediately before the measurement.
発明の構成 本発明に係る眼科器械の特徴は、被検眼に対して離反
接近される測定部に殺菌光線発生手段が設けたところに
ある。Constitution of the invention The feature of the ophthalmic instrument according to the present invention resides in that a germicidal ray generating means is provided in a measuring unit which is separated from and approached to the eye to be examined.
作用 本発明によれば、測定部に殺菌光線発生手段を設けて
あるので、測定者の手を煩わせることなく、しかも、少
なくとも測定直前まで継続してノズル部の殺菌を行なう
ことが可能である。According to the present invention, the measuring section is provided with the germicidal ray generating means, so that it is possible to continuously sterilize the nozzle section at least immediately before the measurement without bothering the measurer. .
実施例 以下に、本発明に係る眼科器械の実施例を図面を参照
しつつ説明する。Example An example of an ophthalmic instrument according to the present invention will be described below with reference to the drawings.
第１図は本発明に係る眼科器械としての非接触式眼圧
計の全体構成図を示し、この第１図において、１は器械
架台、２は測定部、３は被検者の顎を受ける顎受け部、
４は顎受けポールであり、顎受けポールの先端部には額
当て５が設けられている。FIG. 1 shows an overall configuration diagram of a non-contact tonometer as an ophthalmic instrument according to the present invention. In FIG. 1, 1 is an instrument base, 2 is a measuring section, and 3 is a jaw for receiving a jaw of a subject. Receiving part,
Reference numeral 4 denotes a chin receiving pole, and a forehead pad 5 is provided at the tip of the chin receiving pole.
測定部２はジョイステイック６により器械架台１に対
して前後動可能とされて被検者の被検眼に離反接近され
るものとなっている。測定部２にはエアパルス放出系７
が設けられている。エアパルス放出系７は、たとえばシ
リンダーピストン系で構成されている。エアパルス放出
系７には第２図に示すようにそのシリンダー部にノズル
部８が設けられ、ノズル部８はノズル8aを有している。
そのノズル8aは眼圧測定に際して被検者の被検眼にアラ
イメント調整されるものであり、眼圧測定時に被検眼に
向かってエアパルスが噴射される。このノズル部７は眼
圧非測定時には、塵埃防止用のキャップ９により保護さ
れるもので、キャップ９はノズル部８に装着される。The measuring section 2 is made movable back and forth with respect to the instrument base 1 by the joystick 6, and is moved away from and approached to the subject's eye. Air pulse emission system 7
Is provided. The air pulse release system 7 is constituted by, for example, a cylinder piston system. As shown in FIG. 2, the air pulse emission system 7 is provided with a nozzle portion 8 in a cylinder portion thereof, and the nozzle portion 8 has a nozzle 8a.
The nozzle 8a is used to adjust the alignment of the nozzle 8a with the subject's eye when measuring the intraocular pressure, and an air pulse is jetted toward the subject's eye when measuring the intraocular pressure. The nozzle portion 7 is protected by a dust preventing cap 9 when the intraocular pressure is not measured, and the cap 9 is attached to the nozzle portion 8.
なお、眼圧測定時の被検眼とノズル8aとのワーキング
デイスタンスは通常11mmである。The working distance between the eye to be examined and the nozzle 8a at the time of measuring the intraocular pressure is usually 11 mm.
キャップ９にはノズル部８に装着された際にノズル8a
と対面する側に殺菌光線発生手段としての殺菌光線発生
光源10と感圧センサ11とが設けられている。殺菌光線発
生光源10としてはたとえば紫外線領域の波長を有する光
線を発生するものを用いる。この感圧センサ11はノズル
部８へのキャップ９の装着による圧力変化に基づき導通
状態となるもので、第３図ないし第５図に示すように、
そのリード線12は殺菌光線発生光源10のリード線13に接
続され、そのリード線14は殺菌光線発生光源10のリード
線15と共に額当てに設けられたコネクタ16を介して顎受
けポール４の筒内を経由して器械本体１内の検知回路17
のプラス側とマイナス側とに接続されている。検知回路
17は感圧センサの導通状態を検知し、この導通検知に基
づき殺菌光線発生光源10に通電を開始する機能を有す
る。なお、18は器械電源である。When the cap 9 is attached to the nozzle portion 8, the nozzle 8a
A germicidal ray generating light source 10 as a germicidal ray generating means and a pressure-sensitive sensor 11 are provided on the side facing the germline. As the germicidal ray generating light source 10, for example, a source that generates a ray having a wavelength in the ultraviolet region is used. This pressure-sensitive sensor 11 is brought into a conductive state based on a pressure change due to the attachment of the cap 9 to the nozzle portion 8, and as shown in FIGS. 3 to 5,
The lead wire 12 is connected to the lead wire 13 of the germicidal light source 10, and the lead wire 14 is connected to the lead wire 15 of the germicidal light source 10 via the connector 16 provided on the forehead. The detection circuit 17 in the instrument body 1 via the inside
Are connected to the plus side and the minus side. Detection circuit
Reference numeral 17 has a function of detecting a conduction state of the pressure-sensitive sensor, and starting energization of the germicidal ray generation light source 10 based on the conduction detection. Reference numeral 18 denotes an instrument power supply.
なお、殺菌が十分に行なわれたとみなされる時間が経
過後は節電を図るため、検知回路17の前段にタイマー回
路（図示を略す）を設けて、殺菌光線発生光源10への電
源供給を停止する構成とすることも可能である。In order to save power after the time when it is considered that the sterilization is sufficiently performed, a timer circuit (not shown) is provided in front of the detection circuit 17 to stop the power supply to the sterilization light ray generation light source 10. A configuration is also possible.
また、非接触式眼圧計では、ノズル部８に測定窓ガラ
ス19、前眼部観察窓ガラス20が設けられているが、この
前眼部観察窓ガラス20にフィルタ機能をもたせ、殺菌光
線発生光源10の殺菌光線が測定部２内に進入するのをさ
えぎる構成として、測定部２内の眼圧測定用光学系に用
いられている光学ガラスの殺菌光線に基づく光学的特性
の劣化を避けるようにすることもできる。Further, in the non-contact tonometer, the measurement window glass 19 and the anterior eye observation window glass 20 are provided in the nozzle portion 8, and the anterior eye observation window glass 20 is provided with a filter function, and a germicidal ray generating light source is provided. In order to prevent the deterioration of the optical characteristics based on the germicidal light of the optical glass used in the optical system for measuring the intraocular pressure in the measuring part 2, the structure for blocking the 10 germicidal rays from entering the measuring section 2 is adopted. You can also.
第６図は本発明に係る眼科器械の他の実施例を示すも
ので、エアパルス放出系７のエアチャンバ21に殺菌光線
発生光源10を設ける構成としたもので、エアチャンバ21
には殺菌済み空気又は窒素ガスが封入された使い捨て式
の高圧エアボンベ22が装着されており、電磁弁23を駆動
制御することによりエアパルスが被検眼に噴射されるも
のである。FIG. 6 shows another embodiment of the ophthalmic instrument according to the present invention, in which the germicidal ray generating light source 10 is provided in the air chamber 21 of the air pulse emission system 7.
Is mounted with a disposable high-pressure air cylinder 22 filled with sterilized air or nitrogen gas, and an air pulse is jetted to the eye by controlling the drive of the solenoid valve 23.
この実施例によれば、第１図に示すようなノズル8aか
ら空気を吸引してエアチャンバ21に溜めるピストンシリ
ンダ方式のものに較べて、エアチャンバ21が雑菌により
汚染されるのをより一層確実に防止できる。According to this embodiment, the air chamber 21 is more surely contaminated by germs than the piston-cylinder type that sucks air from the nozzle 8a and stores it in the air chamber 21 as shown in FIG. Can be prevented.
発明の効果 本発明に係る眼科器械は、以上説明したように構成し
たので、測定者の手を煩わせることなく、しかも、少な
くとも測定直前まで継続してノズル部の殺菌を行なうこ
とが可能であるという効果を奏する。Effect of the Invention Since the ophthalmic instrument according to the present invention is configured as described above, it is possible to sterilize the nozzle portion continuously without at least immediately before the measurement without bothering the measurer. This has the effect.
第１図は本発明に係る眼科器械としての非接触式眼圧計
の全体構成図、第２図は第１図に示すノズル部の断面
図、第３図は第１図に示すキャップの断面図、第４図は
第３図に示すキャップの側面図、第５図は第４図に示す
キャップを矢印方向から目視した図、第６図は本発明に
係るエアパルス放出系の他の実施例を示す部分断面図で
ある。 ２……測定部 ８……ノズル部 8a……ノズル ９……キャップ 10……殺菌光線発生光源FIG. 1 is an overall configuration diagram of a non-contact tonometer as an ophthalmic instrument according to the present invention, FIG. 2 is a cross-sectional view of a nozzle portion shown in FIG. 1, and FIG. 3 is a cross-sectional view of a cap shown in FIG. 4 is a side view of the cap shown in FIG. 3, FIG. 5 is a view of the cap shown in FIG. 4 viewed from the direction of the arrow, and FIG. 6 is another embodiment of the air pulse emission system according to the present invention. FIG. 2 Measurement part 8 Nozzle part 8a Nozzle 9 Cap 10 Disinfecting light source
Claims (2)
菌光線発生手段が設けられていることを特徴とする眼科
器械。1. An ophthalmic instrument characterized in that a germicidal ray generating means is provided in a measuring section which is separated from and approached to the eye to be examined.
眼圧を測定するためのエアパルス放出系が設けられ、該
エアパルス放出系はそのノズル部に塵埃保護用のキャッ
プが取り付け可能とされ、該塵埃保護用のキャップに前
記殺菌光線発生手段が設けられていることを特徴とする
請求項１に記載の眼科器械。2. An air pulse emission system for measuring an intraocular pressure by blowing an airflow onto an eye to be examined is provided in the measurement section, and the air pulse emission system can have a dust protection cap attached to a nozzle portion thereof. 2. The ophthalmic instrument according to claim 1, wherein said germicidal ray generating means is provided on said dust protection cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63067811A JP2612296B2 (en) | 1988-03-22 | 1988-03-22 | Ophthalmic instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63067811A JP2612296B2 (en) | 1988-03-22 | 1988-03-22 | Ophthalmic instruments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01250220A JPH01250220A (en) | 1989-10-05 |
| JP2612296B2 true JP2612296B2 (en) | 1997-05-21 |
Family
ID=13355703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63067811A Expired - Fee Related JP2612296B2 (en) | 1988-03-22 | 1988-03-22 | Ophthalmic instruments |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2612296B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4578937B2 (en) * | 2004-11-02 | 2010-11-10 | 株式会社ニデック | Optometry equipment |
| CN113180591A (en) * | 2021-04-27 | 2021-07-30 | 施华 | Infectious disease transmission preventing device based on slit lamp platform |
-
1988
- 1988-03-22 JP JP63067811A patent/JP2612296B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01250220A (en) | 1989-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |