Patent ID: 7077831
Filing Date: 2006-07-18
Classification: A61F,A61M,B05B

Abstract:
1. A device for delivering a metered quantity of a liquid ophthalmic product to an eye comprising: a body having a first cavity and an opening at the outer end of said cavity that is adapted for surrounding engagement with the mouth of a bottle containing a liquid ophthalmic product, a transverse bore in said body communicating with said first cavity, a discharge orifice at one side of said body, a holding chamber connecting said transverse bore and said discharge orifice, and at least one passageway communicating with said holding chamber; a metering member rotatably disposed in said transverse bore, said metering member comprising a second cavity for holding a predetermined quantity of a liquid ophthalmic product, said metering member being rotatable between a first position wherein said second cavity is open to said first cavity whereby liquid ophthalmic product can flow via gravity from said first cavity into said second cavity and a second position wherein said second cavity is aligned with said holding chamber and liquid ophthalmic product can spill out of said second cavity into said holding chamber; and selectively operable means for injecting air into said holding chamber via said at least one passageway, whereby said air will expel liquid ophthalmic product from said holding chamber to the atmosphere via said orifice.