Manufacturing method of contact lens package
AssigneeMenicon Co., Ltd.
InventorsYuka Tamiya, Takashi Yamamoto
Life of this patent
Estimating the term…
Abstract
A novel contact lens package containing a silicone hydrogel soft contact lens, which can be offered to the market in a hermetically sealed preserved state with excellent shape stability (dimensional stability). Also provided is a manufacturing method of the same. The novel contact lens package is manufactured by using a silicone hydrogel contact lens as a soft contact lens, sealing both a storage solution so as to contain a phosphoric acid and the silicone hydrogel contact lens in a housing area of a contact lens package, and then performing high pressure steam sterilization processing.
Claims6
A manufacturing method of a contact lens package in which a soft contact lens and a storage solution are hermetically sealed in a housing area, comprising the following steps:
- preparing a silicone hydrogel contact lens as the soft contact lens;
- preparing the storage solution so as to contain a phosphoric acid;
- sealing the silicone hydrogel contact lens together with the storage solution containing the phosphoric acid in the housing area;
- and
- performing high pressure steam sterilization processing.
A contact lens package in which a soft contact lens and a storage solution are hermetically sealed in a housing area, wherein
- a silicone hydrogel contact lens is used as the soft contact lens, and the storage solution is constituted containing a phosphoric acid, while the silicone hydrogel contact lenses are sealed together with the storage solution containing the phosphoric acid in the housing area and subjected to high pressure steam sterilization processing.
A method of stabilizing a silicone hydrogel molded product hermetically sealed together with a storage solution inside a package, comprising the following steps:
- preparing the storage solution so as to contain a phosphoric acid;
- sealing the silicone hydrogel molded product together with the storage solution containing the phosphoric acid inside the package;
- and
- performing high pressure steam sterilization processing.
Dependencies are inferred from the claim text.