PTP sheet for drug packaging
AssigneeNipro Corporation
InventorsKazuaki Uetake, Naohisa Katayama
Life of this patent
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Abstract
A PTP sheet for pharmaceutical drug packaging from which a solid pharmaceutical drug is easily taken out and in which a pocket portion is hard to be accidentally damaged. A PTP sheet has a first sheet from which a pocket portion capable of housing a solid pharmaceutical drug protrudes to the side of an upper surface and a second sheet which is stuck to a lower surface of the first sheet and which closes an opening of the pocket portion. The pocket portion has a peripheral wall portion having a peripheral surface continuous with the upper surface and a top portion having a top surface continuous with the peripheral surface of the peripheral wall portion. A wall thickness of the peripheral wall portion is smaller than a wall thickness of the top portion.
Claims5
A PTP sheet for packaging a pharmaceutical drug, comprising:
- a first sheet and a second sheet, the first sheet having a surface facing the second sheet, the first sheet having a first portion and a pocket portion, the first portion being in contact with the second sheet;
- the pocket portion having sidewalls and a base portion, the pocket portion configured for holding the pharmaceutical drug;
- wherein the sidewalls of the pocket portion have a wall thickness less than the wall thickness of the base portion and the first portion;
- wherein the base portion has a wall thickness equal to the wall thickness of the first portion of the first sheet;
- and
- wherein a first force, applied to the base portion in a direction normal to a plane defined by the first portion, that drives the base portion just to said plane is less than three times a second force applied normal to the base portion in said direction that causes yield point rupture of the second sheet.
Dependencies are inferred from the claim text.