Device For Distributing Liquid In The Form Of Drops

Abstract

The device includes a drop dispenser orifice formed in a dispenser end, and a mechanism for visually locating the orifice, by forming a demarcation zone having a color that contrasts strongly with other portions of the dispenser end.

What is claimed is: 
     
         1 . A dispenser device for dispensing liquid in the form of drops, the device comprising:
 a dispenser end;   a drop dispenser orifice formed in the dispenser end;   a locator for visually locating the orifice by forming a demarcation zone having a color that contrasts with other portions of the dispenser end,   a drop-forming element,   wherein the demarcation zone is formed by coloring the drop-forming element, and wherein the demarcation zone is dark-colored zone and is made of a material that is mass-dyed.   
     
     
         2 . The device according to  claim 1 , wherein the drop forming element comprises a drop-forming cavity inside the drop dispenser orifice. 
     
     
         3 . The device according to  claim 2 , wherein the drop-forming cavity has a conical shape that flares outwardly and having an inner conical surface. 
     
     
         4 . The device according to  claim 3 , wherein the demarcation zone is obtained by coloring the inner conical surface of the drop-forming cavity inside the drop dispenser orifice. 
     
     
         5 . The device according to  claim 1 , further comprising a drop dispenser valve formed of a piece of elastomer material, the drop dispenser valve operable between a liquid-passing configuration and a liquid-blocking configuration. 
     
     
         6 . The device according to  claim 5 , wherein the drop-forming element is formed in the piece of elastomer material that forms the drop dispenser valve. 
     
     
         7 . The device according to  claim 5 , further comprising a support, the dispenser end including a cap for pressing the drop dispenser valve against the support. 
     
     
         8 . The device according to  claim 7 , wherein the cap has an end surface in the shape of a substantially flat disk with a central hole, the drop dispenser valve extending at least partially through the central hole with the drop dispenser orifice located adjacent to the end surface. 
     
     
         9 . The device according to  claim 8 , wherein the substantially flat disk is of opaque color. 
     
     
         10 . The device according to  claim 7 , wherein the demarcation zone is different in color relative to the cap. 
     
     
         11 . The device according to  claim 1 , the device being configured for dispensing liquid in an eye.