Tonometer mounting device

Claim 2

For use with a tonometer, a pair of retractors for respectively retracting upper and lower eyelids apart from each other, holding means coacting with said pair of retractors for holding the latter in positions retracting a pair of eyelids apart from each other, and support means for supporting a tonometer in a position for convenient operation while the eyelids are retracted by said retractors.

Claim 3

The combination of claim 1 and wherein an adjusting means coacts with said holding means for adjusting the latter to control the extent to which the pair of retractors retract the eyelids apart from each other.

Claim 4

The combination of claim 1 and wherein each retractor has a hooked portion for engaging an eyelid and a free end portion distant from said hooked portion thereof and engaged by said holding means.

Claim 5

The combination of claim 3 and wherein each retractor is swingably carried by said holding means at the free end portion of each retractor engaged by said holding means.

Claim 6

The combination of claim 1 and wherein said holding means includes a pair of levers respectively having free ends engaging and carrying said retractors and respectively having distant from said free ends overlapping portions pivoted to each other.

Claim 7

The combination of claim 5 and wherein a spring means coacts with said levers for urging them to swing apart from each at their ends which respectively carry said retractors.

Claim 8

The combination of claim 6 and wherein an adjusting means is provided for adjusting the extent to which said retractors pull eyelids apart from each other, said adjusting means including a pair of elongated overlapping rods slidably engaging each other, respectively pivoted to said levers and extending therefrom to the space between said levers where said rods slidably engage each other, a nut formed with a threaded bore and with a transverse bore extending through said nut perpendicularly across said threaded bore thereof and through which said rods slidably extend, and a screw threaded into said threaded bore of said nut for releasably pressing against said rods to hold the latter in a selected position adjusting the force with which the retractors pull eyelids apart from each other.

Claim 9

The combination of claim 7 and wherein said support means for the tonometer includes an elongated strip formed with an elongated slot through which said screw extends.

Claim 10

The combination of claim 8 and wherein said screw threadedly carries a lock nut, said strip of said support means extending between said lock nut and said nut formed with said transverse bore through which said rods extend, so that said lock nut can releasably fix said strip in an adjusted position on the nut through which the adjusting rods extend.

Claim 11

The combination of claim 9 and wherein said levers of said holding means terminate at their overlapping portions which are pivoted to each other distant from said retractors, said adjusting rods being situated between the overlapping portions of said levers which are pivoted to each other and said retractors.