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OPHTHALMIC MARKING DEVICE
专利权人:
Geoffrey Mark Whitehouse
发明人:
Geoffrey Mark Whitehouse
申请号:
US13002668
公开号:
US20120197278A1
申请日:
2009.06.16
申请国别(地区):
US
年份:
2012
代理人:
摘要:
An ophthalmic marker having a U-shaped yoke at one end of a cranked axle is disclosed. The axle is rotatable mounted with a co-axial cylindrical handle. The other end of the axle extends beyond the handle and is bifurcated. A plumb bob having a sphere and a stem is pivotally mounted on the bifurcated end of the axle. The yoke has three marker points the upper two of which are maintained in a horizontal plane by a gravitational force urging the plumb bob into a vertical plane notwithstanding the handle not being held exactly horizontal. A method of eye marking and marker making are also disclosed.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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