Operating microscope having an arm frame
US7724428B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2006 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Dec 21, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/506
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An operating microscope includes a base set on a floor surface, a post held for rotation around a vertical rotation axis with respect to the base, a horizontal motion arm held for rotation around a first horizontal rotation axis with respect to the post, a vertical motion arm held for rotation around a second horizontal rotation axis with respect to the horizontal motion arm, a lens barrel portion supported by the vertical motion arm, an elastic member which is provided between the post and the horizontal motion arm and cancels an angular moment around the horizontal motion arm, a fulcrum which is provided on the horizontal motion arm and receives a force from the elastic member, and a fulcrum moving mechanism configured to shift the position of the fulcrum in a direction substantially perpendicular to a longitudinal direction of the horizontal motion arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.