The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 1992
Filed:
Sep. 06, 1991
John L Williams, Kidlington, Oxford OX5 2BX, GB;
Other;
Abstract
An ophthalmic device (10, 30, 50, 81) in the form of a cup (11, 31, 51) having a periphery (12, 32, 52, 85) substantially scaphoid in plan for contacting a facial region in the vicinity of an eye. The interior of the cup is accessible from its exterior by way of at least a first port (14, 34, 58, 86) and a second port (15, 35, 60, 87). The first port (14, 34, 58, 86) provides an inlet for a dispensing unit (17, 38, 63) for material to be supplied to the eye. The second port (15, 35, 60, 87) provides a target for viewing by an eye about which the periphery (12, 32, 52, 85) is disposed. The device (10, 30, 50, 81) is preferably fabricated from a material which is substantially opaque or imperfectly transparent and the second port (15, 35, 60, 87) is an aperture which provides a viewing target for an eye with which the device is being used. Alternatively the device can be in the form of a transparent shell with a distinctive target supported on the shell. A projection (16) can be located on the device (10, 30, 50, 81) outside the periphery (12, 32, 52, 85) to form an initial contact point for the device (10, 30, 50, 81) on a facial region in the vicinity of an eye. The projection (16) serves to enhance contact with, and displacement of, a displaceable surface in the region of the eye on which it is located on movement of the device (10, 30, 50, 81) relative to the eye.