Accession Number : ADD001203

Title :   Ophthalmodynamometer.

Descriptive Note : Patent Application,


Personal Author(s) : Chisum,Gloria T ; Nichparenko,John

Report Date : 01 May 1974

Pagination or Media Count : 11

Abstract : The patent application discloses a portable ophthalmodynamometer, which operates in the active compression mode and includes a transparent plastic eyecup or speculum attached to a bellows-like bladder having glass endwalls. The eyecup fits under the eyelids and is seated against the sclera by a headstrap attached to the bladder structure and secured around the head. An air duct extends from the interior of the bladder structure to a hand squeeze bulb whereby manipulation of the bulb increases the internal pressure of the bladder structure. Increasing bladder pressure is transmitted to the eyeball via the eyecup to thereby raise intra-ocular pressure. Bladder pressure is related to retinal artery blood pressure. Means are provided to ascertain the bladder pressure so that retinal artery blood pressure may be determined.

Descriptors :   *Medical equipment, Patents, Retina, Blood pressure, Eye, Measuring instruments, Bioinstrumentation

Subject Categories : Medical Facilities, Equipment and Supplies
      Biomedical Instrumentation and Bioengineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE