Graves speculum

Graves speculum

standard duckbill vaginal speculum. Inserted closed, opened by an exterior screw device that separates two thin blades, semicircular in cross-section. The cervix can be viewed through the external ring of the instrument.
References in periodicals archive ?
The only setup needed involves the Graves speculum and two ring forceps, she added.
The Graves speculum is wider and may be occasionally used in very large adolescents when it is difficult to visualize the cervix.