Hand-held device enabling accurate dispensing of a drop of a...

Details Hand-held device enabling accurate dispensing of a drop of a... Hand-held device enabling accurate dispensing of a drop of a...

2008-05-20

2008-05-20

Zalukaeva, Tatyana (Department: 3761)

Surgery

Means for introducing or removing material from body for...

Treating material applied to or removed from external...

C604S295000, C604S300000, C604S301000, C604S302000, C222S386000, C222S541900

Reexamination Certificate

active

07374559

ABSTRACT:
A system for delivering a drop of liquid to an eye of a subject, wherein the instrument has a receiver to receive a liquid to be delivered to the eye of the subject, a transfer portion to receive the liquid from the receiver to advance a drop of the liquid by gravity and capillary action through a capillary tube to a lower discharge outlet whereat the drop of liquid breaks away and drops from the capillary tube, and a lid retractor supported adjacent to the discharge outlet of the capillary tube, for being pressed against the lower lid of the subject to form a cul-de-sac at the lower lid. The lower discharge outlet of the capillary tube is positioned adjacent to and above the lid retractor in a position to deposit the drop of liquid into the cul-de-sac.

REFERENCES:
patent: 5366448 (1994-11-01), Basilice et al.
patent: 5387202 (1995-02-01), Baron
patent: 5578020 (1996-11-01), Mosley
patent: 5618274 (1997-04-01), Rosenthal
patent: 6041978 (2000-03-01), Hagele
patent: 6090086 (2000-07-01), Bolden
patent: 6610036 (2003-08-01), Branch et al.
patent: 2005/0107755 (2005-05-01), Berger et al.

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