Ocular vial
First Claim
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1. An ocular treatment apparatus for applying medicament into an eye, said apparatus comprising:
- a vial defining first and second cavities, said first cavity being in fluid communication with said second cavity for receiving a predetermined volume of medicament therefrom, said vial having formed therein an orifice in fluid communication with said first cavity for releasing a substantially predetermined volume of medicament therefrom;
a piston member, said piston member being moveable within said first cavity for displacing a substantially predetermined volume of medicament from said first cavity through said orifice and into the eye, the piston member and/or a surface defining the first cavity includingmeans for removing air from the medicament released from the first cavity into the eye.
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Abstract
An ocular treatment apparatus for applying medicament into an eye has a vial defining a vial cavity for holding medicament. A nozzle is attached over an opening in the vial and is in fluid communication with the vial cavity for releasing drops of medicament. A piston member is suspended within the vial and slideably engaged within the vial cavity for displacing a substantially predetermined volume of medicament through the nozzle for release into the eye.
64 Citations
11 Claims
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1. An ocular treatment apparatus for applying medicament into an eye, said apparatus comprising:
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a vial defining first and second cavities, said first cavity being in fluid communication with said second cavity for receiving a predetermined volume of medicament therefrom, said vial having formed therein an orifice in fluid communication with said first cavity for releasing a substantially predetermined volume of medicament therefrom; a piston member, said piston member being moveable within said first cavity for displacing a substantially predetermined volume of medicament from said first cavity through said orifice and into the eye, the piston member and/or a surface defining the first cavity including means for removing air from the medicament released from the first cavity into the eye. - View Dependent Claims (2, 3, 4)
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5. An ocular treatment apparatus for applying medicament into an eye, comprising:
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a nozzle defining an orifice therein and a first cavity in fluid communication with the orifice, the first cavity being adapted to receive a predetermined volume of medicament for release through the orifice into an eye; a housing coupled to the nozzle and defining a second cavity therein, the second cavity being in fluid communication with the first cavity and adapted to hold medicament for release into an eye; a piston member supported by the housing and moveable under the force applied by a user within the first cavity, the downward stroke of the piston member displacing a substantially predetermined volume of medicament within the first cavity through the nozzle orifice and into an eye, the return stroke of the piston member permitting medicament to flow from the second cavity into the first cavity, the piston member and/or a surface defining the first cavity including means for permitting air within the first cavity to pass into the second cavity on the downward stroke of the piston member to expel air from the medicament released into the eye. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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Specification