JPH069599B2 - Droplet distribution chip - Google Patents
Droplet distribution chipInfo
- Publication number
- JPH069599B2 JPH069599B2 JP2234650A JP23465090A JPH069599B2 JP H069599 B2 JPH069599 B2 JP H069599B2 JP 2234650 A JP2234650 A JP 2234650A JP 23465090 A JP23465090 A JP 23465090A JP H069599 B2 JPH069599 B2 JP H069599B2
- Authority
- JP
- Japan
- Prior art keywords
- orifice
- eye drop
- chip
- droplet distribution
- distribution chip
- 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 - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
- B65D47/18—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages for discharging drops; Droppers
Description
【発明の詳細な説明】 本発明は主に眼病用の薬剤を分配するために使用する従
来の薬剤スポイト(dropper)に対して有用な点眼チップ
(dropper tip)の新規な設計に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is an eye drop tip useful for conventional drug droppers primarily used to dispense drugs for eye diseases.
Regarding new design of (dropper tip).
第１図には、点眼チップ１及びスクィーズボトル２から
構成される従来の眼病用薬剤の放出(delivery)システム
が示されている。このシステムは、滴下方法により均一
な所定の大きさの液滴で薬剤を放出することが意図され
ている。液滴の大きさは、スクィーズボトル２からの流
量を制限する、約0.150mm（約0.06インチ）の直径を有
する、点眼チップ１中のまっすぐな放出流路４の最初に
形作られている、小径の流路３により与えられる液圧の
抵抗によって制御される。この従来の薬剤放出システム
は一般に予定した目的に役立つものであるが、多くの患
者のやり方で常に個々の液滴になるとは必らず、むしろ
液体の流れとなり、その結果として、薬剤の損失とな
り、さらには衣類及び他の布類を汚すことであろう。FIG. 1 shows a conventional drug delivery system for eye diseases, which is composed of an eyedrop chip 1 and a squeeze bottle 2. This system is intended to release the drug in uniform, sized droplets by the dripping method. The droplet size is a small diameter formed at the beginning of a straight discharge channel 4 in the eye drop tip 1 having a diameter of about 0.150 mm (about 0.06 inch) that limits the flow rate from the squeeze bottle 2. It is controlled by the resistance of the hydraulic pressure provided by the flow path 3. While this conventional drug delivery system generally serves its intended purpose, it does not always result in individual droplets in many patient fashions, but rather a liquid flow, resulting in drug loss. , And even stain clothing and other fabrics.
さらに、狭い流路３を持つ従来の点眼チップは、低開発
国においては容易に利用できない複雑な技術を必要とす
る射出成形技術により、一般にプラスチック類から二次
加工される。Furthermore, conventional eyedrops with narrow channels 3 are generally fabricated from plastics by injection molding techniques that require complex techniques that are not readily available in underdeveloped countries.
本発明によって、より良い放出制御をもたらす点眼チッ
プが提供され、これは製作のためにより低い水準の技術
しか必要とせず、それ故単一装置についてのコストを低
減させ、、又世界中どこでも実際に製作を可能にするも
のである。The present invention provides eyedrop tips that provide better controlled release, which requires lower levels of technology for fabrication, thus reducing the cost for a single device, and practically anywhere in the world. It enables production.
これらの利点は第２図に示すチップ５の設計により達成
される。第２図では放出流路６に対する入口は狭い流路
によるものではなく、放出流路と同心ではなく、しかも
ハブ８の側面で放出流路に対してある角度をもって、好
ましくは直角に位置しているオリフィス７により与えら
れている。These advantages are achieved by the design of chip 5 shown in FIG. In FIG. 2, the inlet to the discharge channel 6 is not a narrow channel, is not concentric with the discharge channel, and is positioned at an angle to the side of the hub 8 with respect to the discharge channel, preferably at a right angle. Is provided by an orifice 7.
本発明の新規なチップにおいて、流れ又は液圧の抵抗
は、製作が困難な狭い流路によって制限されるのではな
く、容器を押しつぶすことにより与えられる、内部の静
的エネルギーを液体の流れの運動エネルギーへ変換する
ことを防ぐ放出流路に液体が入った時、液体の流れの方
向を変換せしめる複雑な放出流路により部分的に制限さ
れる。In the novel tip of the present invention, the flow or hydraulic resistance is not limited by the narrow channels, which are difficult to fabricate, but the internal static energy provided by crushing the container causes the movement of the liquid flow. When liquid enters the discharge channel that prevents it from being converted to energy, it is partially limited by the complex discharge channel that changes the direction of flow of the liquid.
さらに、オリフィスの断面は円形、三角形、半円形、不
規則形又は矩形等のどの様な形状でも良く、好ましくは
矩形が良く、その場合、液体放出に対する液圧の抵抗
は、矩形の寸法によって部分的に決定される。長く、か
つ、狭い矩形のオリフィスは、同じ断面積の正方形オリ
フィスよりも大きな液圧の抵抗を与える。形状にかかわ
らず、オリフィスは約0.015〜0.02mm2の範囲の断面積を
有している。Further, the cross-section of the orifice may be any shape such as circular, triangular, semi-circular, irregular or rectangular, preferably rectangular, in which case the hydraulic resistance to liquid discharge depends in part on the dimensions of the rectangle. To be decided. Long and narrow rectangular orifices provide greater hydraulic resistance than square orifices of the same cross-sectional area. Regardless of shape, the orifice has a cross sectional area in the range of about 0.015 to 0.02 mm 2 .
オリフィス７の大きさと形状は所望の仕様の範囲内で単
純化した成型技術により制限され得る。The size and shape of the orifice 7 can be limited by simplified molding techniques within desired specifications.
第１図は、従来の眼病用薬剤の放出システムを示す断面
図である。 第２Ａ図は、本発明による薬剤の放出システムの点眼チ
ップを示す断面図であり、第２Ｂ図は、第２Ａ図の２Ｂ
−２Ｂ線に沿って切断した横断面図である。 〔主要部分の符号の説明〕 １……点眼チップ ２……スクィーズボトル ３……小径の流路 ４……放出流路 ５……点眼チップ ６……放出流路 ７……オリフィス ８……ハブ。FIG. 1 is a sectional view showing a conventional drug delivery system for eye diseases. 2A is a cross-sectional view showing an eye drop tip of the drug delivery system according to the present invention, and FIG.
FIG. 2B is a transverse cross-sectional view taken along line -2B. [Explanation of symbols of main parts] 1 ... Eye drop chip 2 ... Squeeze bottle 3 ... Small diameter flow path 4 ... Ejection flow path 5 ... Eye drop chip 6 ... Emission flow path 7 ... Orifice 8 ... Hub .
Claims (3)
いオリフィスによって与えられることを特徴とする制御
された眼病用薬剤放出のための点眼チップ。1. An eye drop tip for controlled ophthalmic drug release, wherein the inlet to the release channel is provided by an orifice that is not concentric with the release channel.
有する請求項１記載の点眼チップ。2. The eye drop tip according to claim 1, wherein the orifice has a cross-sectional area of about 0.015 to 0.02 mm 2 .
記載の点眼チップ。3. The orifice has a non-circular cross section.
The described eye drop chip.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US40454089A | 1989-09-08 | 1989-09-08 | |
| US404,540 | 1989-09-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03111052A JPH03111052A (en) | 1991-05-10 |
| JPH069599B2 true JPH069599B2 (en) | 1994-02-09 |
Family
ID=23600011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2234650A Expired - Lifetime JPH069599B2 (en) | 1989-09-08 | 1990-09-06 | Droplet distribution chip |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0416694B1 (en) |
| JP (1) | JPH069599B2 (en) |
| CA (1) | CA2024673A1 (en) |
| DE (1) | DE69010597T2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0720997U (en) * | 1993-09-21 | 1995-04-18 | 山崎産業株式会社 | Western style handrail device |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6098852A (en) * | 1999-01-27 | 2000-08-08 | Automatic Liquid Packaging, Inc. | Tip for liquid drop dispensing container |
| JP3922910B2 (en) | 2001-10-31 | 2007-05-30 | 参天製薬株式会社 | Eye drops container with stepped part |
| AU2002358549A1 (en) * | 2001-11-30 | 2003-06-10 | Crown Cork And Seal Technologies Corporation | A closure |
| CA2616392A1 (en) * | 2007-12-21 | 2009-06-21 | Pharmascience Inc. | Pharmaceutical delivery device |
| WO2019027025A1 (en) | 2017-08-04 | 2019-02-07 | クラレノリタケデンタル株式会社 | Member for discharging liquid and container |
| JP7066134B2 (en) * | 2017-08-04 | 2022-05-13 | クラレノリタケデンタル株式会社 | Liquid pouring materials and containers |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2834520A (en) * | 1956-06-15 | 1958-05-13 | Nyden Robert | Spouts for containers |
| GB874952A (en) * | 1960-05-30 | 1961-08-16 | Anchor Glass Company Ltd | A dropper device |
| EP0222944A1 (en) * | 1985-11-07 | 1987-05-27 | Delford O. Dougherty | Drop dispenser |
| DE3735909A1 (en) * | 1987-10-23 | 1989-05-03 | Hansen Bernd | DRIP BOTTLE AND METHOD FOR THEIR PRODUCTION |
| EP0378935B1 (en) * | 1988-12-20 | 1992-09-23 | Societe Technique De Pulverisation (S.T.E.P.) | Device to dispense a liquid or cream in droplets having small volumes |
-
1990
- 1990-09-01 DE DE1990610597 patent/DE69010597T2/en not_active Expired - Fee Related
- 1990-09-01 EP EP90202323A patent/EP0416694B1/en not_active Expired - Lifetime
- 1990-09-05 CA CA 2024673 patent/CA2024673A1/en not_active Abandoned
- 1990-09-06 JP JP2234650A patent/JPH069599B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0720997U (en) * | 1993-09-21 | 1995-04-18 | 山崎産業株式会社 | Western style handrail device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69010597T2 (en) | 1995-01-26 |
| CA2024673A1 (en) | 1991-03-09 |
| EP0416694B1 (en) | 1994-07-13 |
| EP0416694A1 (en) | 1991-03-13 |
| JPH03111052A (en) | 1991-05-10 |
| DE69010597D1 (en) | 1994-08-18 |
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