A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 5/56 (2006.01) A61F 9/00 (2006.01)
Patent
CA 2284743
A punctum plug (100) includes a proximal head (102), a distal body (106), and a thin walled flexible shaft (104) between the head (102) and the body (106). The thin wall of the shaft (104) of the plug (100) is preferably provided with accordion-like folds (114, 116, 118), thereby permitting the length of the shaft to vary depending upon the degree to which the accordion-like folds are folded or unfolded. In addition, the accordion-like folds permit the thin wall of the shaft to easily bend, permitting the head and body of the plug to lie along different axes. As a result, the plug is shaped to accommodate both relatively long and short vertical puncta, and the body of the plug may be angled relative to the head to accommodate a variety of anatomical structures. According to another aspect of the invention, the body of the plug may be provided with a thread which rotationally guides the plug into the small punctual opening.
L'invention porte sur un bouchon (100) pour point lacrymal constitué d'une tête proximale (102), d'un corps distal (106) et d'une tige flexible (104) à paroi mince placée entre la tête (102) et le corps (106). La paroi mince de la tige (14) du bouchon (100) comporte, de préférence, des plis en accordéon (114, 116, 118), ce qui permet de faire varier la longueur de la tige selon le degré de pliure des plis en accordéon. De plus, ces plis en accordéon permettent de courber facilement la paroi mince de la tige et de placer la tête et le corps le long d'axes différents. En conséquence, le bouchon est conçu pour s'adapter, relativement, à la fois dans des points lacrymaux verticaux, longs et courts, le corps et le bouchon pouvant former un angle par rapport à la tête de façon à s'adapter à différentes structures anatomiques. Selon un autre aspect de cette invention, le corps du bouchon peut comporter un filetage qui guide par rotation le bouchon dans le petit orifice du point lacrymal.
Eagle Vision Inc.
Smart & Biggar
LandOfFree
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