초록 ▼

The present invention involves an eye drop dispenser attachment having a cannula tip that can provide a consistent dose of medication. The attachment includes a base portion, a neck portion, and a tip portion. The base portion can contain threads for removable attachment to a bottle. The attachment

The present invention involves an eye drop dispenser attachment having a cannula tip that can provide a consistent dose of medication. The attachment includes a base portion, a neck portion, and a tip portion. The base portion can contain threads for removable attachment to a bottle. The attachment can also include a protective covering for surrounding the tip to prevent injury to a user. The attachment can further include a cap that can be removably attached to either the base portion or the neck portion. The attachment can be incorporated into a bottle assembly or it can be screwed onto an existing bottle. The tip preferably has dimensions consistent with current ophthalmic cannula technology in the range of 20-40 gauge depending on the size of drop desired. An alternate embodiment of the attachment can be slidably disposed on the end of a traditional bulb-type eye dropper.

대표청구항 ▼

I claim: 1. An eye drop dispensing attachment comprising: a) a base portion, said base portion having an inner wall and an outer wall defining a circular base interior region, said base having a top end and a bottom end, said inner wall having a plurality of circumferential threads for rotatable at

I claim: 1. An eye drop dispensing attachment comprising: a) a base portion, said base portion having an inner wall and an outer wall defining a circular base interior region, said base having a top end and a bottom end, said inner wall having a plurality of circumferential threads for rotatable attachment to a bottle; b) a lower neck portion connected to said top end, said lower neck portion having an inner wall and an outer wall defining a circular lower neck interior region having a smaller diameter than said base interior region, said lower neck portion having a lower neck top end and a lower neck bottom end; c) an upper neck portion connected to said lower neck top end, said upper neck portion having an inner wall and an outer wall defining a circular upper neck interior region having a smaller diameter than said lower neck interior region, said upper neck portion having an upper neck top end and an upper neck bottom end; and d) a tip connected to said upper neck top end, said tip being tubular in shape and having dimensions to produce liquid drops having between 5-12.5 micro-liters volume wherein said tip further includes a needle portion extending into said base interior region, said needle portion comprised of a hollow tube having a sharp point at the distal end thereof, whereby when the eye drop dispensing attachment is removably attached to a bottle containing liquid-resistant diaphragm barrier, said sharp point penetrates the diaphragm barrier and allows liquid from the bottle to flow through said needle portion to said tip whereby when the eye drop dispensing attachment is securely attached to a bottle containing liquid, a user inverts the bottle, causing liquid to enter said base portion, said lower neck portion, said upper neck portion, and said needle portion and said tip, wherein a drop of liquid of a specified volume forms around the outer opening of said tip, and a user can position said tip over a location where the drop is to be applied, such as an eye. 2. The eye drop dispensing attachment of claim 1 further comprising a cap for removable attachment to said upper neck portion and over said tip for the purpose of protecting said tip when the eye drop dispensing attachment is not in use. 3. The eye drop dispensing attachment of claim 2 wherein said cap is removably attached to said upper neck portion by frictional forces. 4. The eye drop dispensing attachment of claim 2 wherein said cap is removably attached to said upper neck portion by rotational movement, said upper neck portion having at least two threads for removable attachment to said cap and said cap having at least two threads on the interior portion thereof for removable attachment to said upper neck portion. 5. The eye drop dispensing attachment of claim 1, wherein the outer wall of said base portion contains a plurality of protrusions for the purpose of facilitating the rotatable attachment of the eye drop dispensing attachment onto a bottle. 6. The eye drop dispensing attachment of claim 1 further comprising a protective covering attached to said upper neck portion over said tip, whereby when a user positions said tip over a location where the drop is to be applied, such as an eye, said protective covering prevents the tip from coming into contact with a user's eye during use of the eye drop dispensing attachment. 7. The eye drop dispensing attachment of claim 1, wherein said base portion, said lower neck portion, said upper neck portion, and said tip are comprised of a thermoplastic material. 8. An eye drop dispensing device comprising: a) a liquid reservoir portion, said liquid reservoir portion comprising a bottle; and b) a liquid dispensing portion comprising: i) a base portion, said base portion having an inner wall and an outer wall defining a circular base interior region, said base portion having a top end and a bottom end, ii) a lower neck portion connected to said top end, said lower neck portion having an inner wall and an outer wall defining a circular lower neck interior region having a smaller diameter than said base interior region, said lower neck portion having a lower neck top end and a lower neck bottom end, iii) an upper neck portion connected to said lower neck top end, said upper neck portion having an inner wall and an outer wall defining a circular upper neck interior region having a smaller diameter than said lower neck interior region, said upper neck portion having an upper neck top end and an upper neck bottom end, and iv) a tip connected to said upper neck top end, said tip being tubular in shape and having dimensions to produce liquid drops having between 5-12.5 micro-liters volume wherein said tip further includes a needle portion extending into said base interior region, said needle portion comprised of a hollow tube having a sharp point at the distal end thereof, whereby when the eye drop dispensing attachment is removably attached to a bottle containing a liquid-resistant diaphragm barrier, said sharp point penetrates the diaphragm barrier and allows liquid from the bottle to flow through said needle portion to said tip whereby when the liquid reservoir portion contains a liquid, a user inverts the bottle, causing the liquid to enter said base portion, said lower neck portion, said upper neck portion, and said tip, wherein a drop of liquid of a specified volume forms around the outer opening of said tip, and a user can position said tip over a location where the drop is to be applied, such as an eye. 9. The eye drop dispensing device of claim 8 further comprising a protective covering coupled to said upper neck portion over said tip, whereby when a user positions said tip over a location where the drop is to be applied, such as an eye, said protective covering prevents the tip from coming into contact with a user's eye during use of the eye drop dispensing device. 10. The eye drop dispensing device of claim 8 further comprising a cap for removable attachment to said upper neck portion and over said tip for the purpose of protecting said tip when the eye drop dispensing device is not in use. 11. The eye drop dispensing attachment of claim 10 wherein said cap is removably attached to said upper neck portion by frictional forces. 12. The eye drop dispensing attachment of claim 10 wherein said cap is removably attached to said upper neck portion by rotational movement, said upper neck portion having at least two threads for removable attachment to said cap and said cap having at least two threads on the interior portion thereof for removable attachment to said upper neck portion.