Punctum dilating and plug inserting instrument with push-button

Details Punctum dilating and plug inserting instrument with push-button Punctum dilating and plug inserting instrument with push-button

1997-04-28

1998-04-21

Thaler, Michael H.

Surgery

Instruments

Internal pressure applicator

606 1, 128831, A61B 1700

Patent

active

057412928

ABSTRACT:
A punctum dilating and plug inserting instrument includes a cylindrical body with a first end being a plug inserting tip, and a second end being a punctum dilating tip. An elongated button is arranged longitudinally along the body. The button includes a fixed end and a slidable end; the fixed end being positioned between the slidable end and the plug inserting tip. The button also includes an outwardly bowing inner surface spaced from the body. A wire is slidably positioned longitudinally within the body. The wire includes an outer end protruding from the plug inserting tip, and an inner end attached to the slidable end of the button. A conventional punctum plug is attached to the outer end of the wire, and can be inserted into a punctum after the punctum is dilated by the dilating tip. The plug is released by depressing the button, which causes the outwardly bowing inner surface to be moved inwardly against the body, and the slidable end to be moved along the body away from the fixed end and the plug inserting tip. The wire is thus pulled by the slidable end of the button away from the punctum plug to release it.

REFERENCES:
patent: 3897786 (1975-08-01), Garnett et al.
patent: 4258716 (1981-03-01), Sutherland
patent: 4267839 (1981-05-01), Laufe et al.
patent: 4760848 (1988-08-01), Hasson
patent: 5122149 (1992-06-01), Broome
patent: 5282817 (1994-02-01), Hoogeboom et al.
patent: 5355871 (1994-10-01), Hurley et al.
patent: 5634918 (1997-06-01), Richards
GWB International, Ltd. brochure and instructions for FCI Punctum Dilator & Plug Inserter.
Lacrimedics, Inc. brochure for Lacrimal Plug.TM. with inserter.
Eagle Vision, Inc. brochure for Michalos Insertion Forceps.

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