Replaceable prism with flexible tab system for applanation tonometer, applanation tonometer containing same, and method of loading prism into applanation tonometer

摘要

An optical prism mounting system is described that includes a prism having a flexible insertion tab system. Also described, is a prism holder having an insertion channel, and a method of mounting the prism in a tonometer. The flexible insertion tab system includes a spring tab and a bendable tab; the spring tab is flexed as the prism moves along the channel; the flexible insertion tab system connects with the prism holder and snaps into a locked position at the end of the channel; and the prism and the prism holder can be separated after use by disengaging the flexible insertion tab system. An optical operating range of the optical prism is from about 0 ADC to about 600 ADC, and the maximum time for setting the tonometer is not more than about 150 seconds.