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 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 liquid container positioned in said cartridge housing;
liquid coupling means coupling said liquid container to said pump means; and
spray nozzle means mounted at the front end of said pump housing and coupled to receive the liquid output from said pump means and to spray said liquid output into a user'"'"'s eye positioned above said eye piece.
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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.
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Citations
13 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 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 liquid container positioned in said cartridge housing;
liquid coupling means coupling said liquid container to said pump means; and
spray nozzle means mounted at the front end of said pump housing and coupled to receive the liquid output from 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, 11)
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12. An eye drop dispensing system comprising:
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an eyepiece adapted to engage a user'"'"'s face to position said system and to apply eye drops to a user'"'"'s eye;
housing means within said system for containing a supply of liquid;
pump means for pumping liquid from said housing means; and
spray nozzle means coupled to receive said liquid from said housing and adapted to spray said liquid into said user'"'"'s eye, said spray nozzle means having a nozzle chamber with an end wall, said end wall having a plurality of pinholes through which said liquid is sprayed. - View Dependent Claims (13)
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Specification