Handling: hand and hoist-line implements – Contact lens applicator
Patent
1977-07-25
1978-10-31
Cherry, Johnny D.
Handling: hand and hoist-line implements
Contact lens applicator
294 64R, A61F 900
Patent
active
041230981
ABSTRACT:
This disclosure relates to a contact lens insertion and retraction device which is especially useful for either inserting or retracting a soft contact lens, onto or from the surface of a person's eye. This device utilizes a flexible bulb member, in cooperative combination with an attached tubular-shaped member, for supplying negative (suction) or positive (exhaust) pressure on a contact lens holder portion that is attached to the open or other end of the tubular-shaped member and thereby connected to the flexible bulb member. During the operation of removing the contact lens from the eye, a negative pressure or suction is applied to the contact lens from the contact lens holder portion by squeezing the flexible bulb member. The flexible bulb member also supplies an exhaust pressure on the contact lens by means of inserting the contact lens onto the eye. The contact lens holder portion is removable for asepticizing. Additional features include angling the contact lens holder portion with its attached tubular-shaped member at a preferred angle to permit, through use of a mirror, good visual observation of the insertion and extraction operations. A circular-shaped cavity with a diagonal blocking member is utilized at the end of the contact lens holder portion for optimizing the application of suction and exhaust pressures from the flexible bulb portion to the back portion of the contact lens during the insertion and extraction operations.
REFERENCES:
patent: 428246 (1890-05-01), Fay
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patent: 1990334 (1935-02-01), Koppe
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patent: 2919696 (1960-01-01), Rinaldy
patent: 3129971 (1964-04-01), Kobler
patent: 3424486 (1969-01-01), Corley
patent: 3645576 (1972-02-01), Horres
patent: 3879076 (1975-04-01), Barnett
Cherry Johnny D.
Weiss Harry Max
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