Recessed part forming instillation container
AssigneeSanten Pharmaceutical Co., Ltd.
InventorsYoichi Kawashima, Yukio Kusu, Hiroshi Yamada
Life of this patent
Estimating the term…
Abstract
In an eye drops container, a barrel portion 2 in the form of a flexible hollow cylinder defines a dent portion 7 which can be gripped with two fingers.
Claims20
In an eye drops container of the type having a flexible cylindrical barrel portion, which requires a pressing force of about 5.35 N to about 6.15 N for instilling a single drop of water from the container, the improvement comprising a container having at least one dent portion that can be gripped by two fingers positioned on said cylindrical barrel portion, said at least one dent portion rendering said pressing force required for instilling the single drop of water, wherein said pressing force is about 1.78 to about 3.34 N.
A container for eye drops, comprising:
- a one-piece elastically deformable plastic barrel portion having sidewalls having an outer surface and an inner surface, a first end and an opposite second end with the first end being a closed end, an axis extending from center of first end to center of second end, the sidewalls of the barrel portion having a first concave wall portion and an opposite second concave wall portion with each of the concave portions having an elliptical shape with an end of long axis of each of the concave portions adjacent and spaced from the first end of the barrel portion and extending toward the second end of the barrel portion, and second opposite end of the long axis of each of the concave portions adjacent to and spaced from the second end of the barrel portion and minor axis of the concave portions generally normal to the major axis of its respective concave portion, the inner surface of the sidewall at the first and second concave portions facing one another, and distance between the first and second concave portions increases as the distance from cross over of the major and minor axis of the concave portions along the major axis increases, and the distance between the inner surface of the sidewalls and the center axis remains substantially constant as the distance from the end of the major axis of the concave portions toward its respective end of the barrel portion decreases;
- and
- the second end of the barrel portion having an opening through which fluid passes when the first and second concave portions are moved toward one another.
A container for eye drops, comprising:
- a one-piece elastically deformable plastic barrel portion having sidewalls having an outer surface and an inner surface, a first end and an opposite second end with the first end being a closed end, an axis extending from center of first end to center of second end, the sidewalls of the barrel portion having a first concave wall portion and an opposite second concave wall portion with each of the concave portions having an elliptical shape with an end of long axis of each of the concave portions adjacent and spaced from the first end of the barrel portion and extending toward the second end of the barrel portion, and second opposite end of the long axis of each of the concave portions adjacent to and spaced from the second end of the barrel portion and minor axis of the concave portions generally normal to the major axis of its respective concave portion, the inner surface of the sidewall at the first and second concave portions facing one another, and distance between the first and second concave portions substantially constant as the distance from cross over of the major and minor axis of the concave portions along the major axis increases to a transition portion after which the distance between the concave portions increases as the distance along the major axis from the cross over increases, and the distance between the inner surface of the sidewalls and the center axis remains substantially constant as the distance from the end of the major axis of the concave portions toward its respective end of the barrel portion decreases;
- and
- the second end of the barrel portion having an opening through which fluid passes when the first and second concave portions are moved toward one another.
Dependencies are inferred from the claim text.