Eyedrop dispenser with focusing liquid lens

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 47/18 (2006.01) A61F 9/00 (2006.01) B01L 3/14 (2006.01)

Patent

CA 2166214

An eyedrop dispenser (10) uses the natural optical lens effect to a transplant droplet (36) formed at the tip of the dispenser to focus the image of a target (28, 33) disposed inside the outlet (16) of the dispenser. The target image is viewable by the use to align the droplet with the eye (74) when dispensing eyedrops or other liquid medication. The target image is arranged so it comes into focus just prior to when the droplet being formed at the tip of the dispenser is ready to be released from the dispenser tip. The target image is formed by an image plane indicator device (33) located inside the dispenser on the image plane (34) of the droplet when the user is viewing the indicator through the natural transparent lens formed by the droplet. The indicator can be a pinhole (33) through which the liquid contents pass prior to dispensing.

Un distributeur de gouttes oculaires (10) utilise l'effet naturel de lentille optique d'une gouttelette transparente (36) formée au niveau de l'embout du distributeur pour focaliser l'image d'une cible (28, 33) située à l'intérieur de l'orifice (16) du distributeur. L'image cible peut être observée par l'utilisateur afin de permettre l'alignement de la gouttelette et de l'oeil (74) lors de l'application de gouttes oculaires ou autres médicaments liquides. L'image cible est placée de sorte qu'elle se focalise juste avant que la gouttelette en train de se former au niveau de l'embout du distributeur soit prête à tomber de cet embout. L'image cible est formée par un dispositif indicateur (33) de plan d'image situé à l'intérieur du distributeur sur le plan d'image (34) de la gouttelette lorsque l'utilisateur observe l'indicateur par la lentille transparente naturelle formée par la gouttelette. L'indicateur peut être un trou d'épingle (33) par lequel le contenu du liquide passe avant d'être distribué.

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