Counterbalanced supporting frame for a surgical microscope

Details Counterbalanced supporting frame for a surgical microscope Counterbalanced supporting frame for a surgical microscope

1991-09-16

1992-12-22

LaRoche, Eugene R.

Optical: systems and elements

Compound lens system

Microscope

359391, 359392, 359393, F16L 300, A47G 2900

Patent

active

051738023

ABSTRACT:
Disclosed is a spatially-adjustable supporting frame for a surgical microscope unit which can be selectively locked in any adjusted position. The frame includes a hinged parallelogram which can be pivoted about a bearing supported on a column. The hinged parallelogram carries a second structure in the form of a coupled-hinge parallelogram which, in turn, carries the surgical microscope. Two counterweights are independently adjustable along paths parallel with two adjacent sides of the hinged parallelogram to permit the continuous balancing of the weight of the surgical microscope.

REFERENCES:
patent: 2815697 (1957-12-01), Saunders-Singer
patent: 3762796 (1973-10-01), Heller
patent: 3887267 (1975-06-01), Heller
patent: 3891301 (1975-06-01), Heller
patent: 4741607 (1988-05-01), Heller
patent: 4815832 (1989-03-01), Hagano et al.
patent: 4867405 (1989-09-01), Hakamura
patent: 4881709 (1989-11-01), Hakamura

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