| 发明名称 |
DISPOSABLE OPHTHALMIC/MEDICAL APPARATUS WITH TIMED COLOR CHANGE INDICATION |
| 摘要 |
A disposable ophthalmic or medical apparatus has a portion with a color changeable dye disposed thereon. The dye changes color after being exposed to oxygen for a controlled and predetermined period of time indicating that the apparatus should no longer be used.
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| 申请公布号 |
US2009303440(A1) |
申请公布日期 |
2009.12.10 |
| 申请号 |
US20090504107 |
申请日期 |
2009.07.16 |
| 申请人 |
HEACOCK GREGORY LEE;CULHAM LOUISE ELLEN |
发明人 |
HEACOCK GREGORY LEE;CULHAM LOUISE ELLEN |
| 分类号 |
A61B3/125;A61B3/00;A61B17/3211;A61M5/50;G02C7/04 |
主分类号 |
A61B3/125 |
| 代理机构 |
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代理人 |
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| 主权项 |
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