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ELECTRICAL DIGITAL DISPLAY TONOMETER

  • US 3,724,263 A
  • Filed: 09/29/1970
  • Issued: 04/03/1973
  • Est. Priority Date: 09/29/1970
  • Status: Expired due to Term
First Claim
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1. A tonometer for measuring intra-ocular pressure, comprising, in combination:

  • a prehensible member including a transducer for developing an analog electrical signal whose value is a function of the intra-ocular pressure to be measured and digital display means for visually displaying said value, a stationary unit remote from said prehensible member including conversion means for converting an analog signal into a digital signal, and a flexible cord including a plurality of electrically conductive paths interconnecting said prehensible member and said stationary unit for conducting analog signals from said transducer to said conversion means and digital signals from said conversion means to said digital means, whereby an operator using the tonometer on a patient can simultaneously observe said digital display means and accurately position said transducer on the patient'"'"''"'"'s eyeball.

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