Eye drop dispensing system
First Claim
1. An eye drop dispensing system comprising:
- a trough member having a front end and a rear end;
an eye piece formed on a wall at the front end of said trough member;
a spray space formed in said trough member behind said wall;
a pump housing positioned in said trough member behind said spray space and a plurality of pump means within said pump housing;
a cartridge receiving space provided in said trough member between the rear end of said trough member and said pump housing;
a cartridge housing removably received in said cartridge receiving space from said rear end of said trough;
a plurality of liquid containers positioned in said cartridge housing, there being one of said containers for each said pump means;
liquid coupling means coupling each of said liquid containers to a respective one of said pump means; and
spray nozzle means mounted at the front end of said pump housing and coupled to receive the liquid output from each of said pump means and to spray said liquid output into a user'"'"'s eye positioned above said eye piece.
1 Assignment
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Accused Products
Abstract
An eye drop dispensing device includes a trough member with a space to receive a cartridge housing enclosing a collapsible bag containing an ophthalmic liquid and comprising a spring finger applying pressure to the bag. The bag includes a wall pierced by a needle coupling the liquid to pump means through a one-way valve. The pump means includes a plunger biased to a resting position establishing a dosage chamber. Actuator means moves the plunger to enlarge the dosage chamber, causing a drop in pressure which draws a predetermined quantity of the liquid through the one-way valve into the dosage chamber. The actuator means then releases the plunger so that it moves to compress the dosage chamber to pump the liquid in the dosage chamber through a second one-way valve to spray the liquid through pinholes formed in a nozzle angled to direct the liquid as eye drops to the user'"'"'s eye. Another embodiment receives a cartridge housing enclosing three collapsible bags containing three different prescription ophthalmic drug solutions. The embodiment includes three shuttle pumps which are controlled by a common control member to dispense the solutions simultaneously into the patient'"'"'s eye.
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Citations
12 Claims
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1. An eye drop dispensing system comprising:
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a trough member having a front end and a rear end;
an eye piece formed on a wall at the front end of said trough member;
a spray space formed in said trough member behind said wall;
a pump housing positioned in said trough member behind said spray space and a plurality of pump means within said pump housing;
a cartridge receiving space provided in said trough member between the rear end of said trough member and said pump housing;
a cartridge housing removably received in said cartridge receiving space from said rear end of said trough;
a plurality of liquid containers positioned in said cartridge housing, there being one of said containers for each said pump means;
liquid coupling means coupling each of said liquid containers to a respective one of said pump means; and
spray nozzle means mounted at the front end of said pump housing and coupled to receive the liquid output from each of said pump means and to spray said liquid output into a user'"'"'s eye positioned above said eye piece. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for dispensing a plurality of ophthalmic medicaments to a patient'"'"'s eye, comprising;
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means for holding a plurality of containers, one for each said medicaments;
means for coupling each of said containers to separate pump means;
single control means for simultaneously activating said separate pump means to feed doses of said medicaments simultaneously to said patient'"'"'s eye. - View Dependent Claims (12)
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Specification