Trepans [noun]

Figs. 141 to 146 are of the connections to the trepan and spears or rods.

But what a thoughtless animal is man,—How very active in his own trepan!

The learned doctors held a consultation, and resolved to trepan the skull and extract the worm.

Do all the Fractures of the Skull require the use of the Trepan?

The trepan of M. Kind contains some peculiar details, which are shown in Figs. 97, 98.

What is that deep Fracture, wherein the use of the Trepan is absolutely necessary?

Must all these Signs appear before a Determination can be made of the necessity of using the Trepan?

What is requisite to be done in a doubtful Occasion; Must the Trepan be apply'd or omitted?

We ought therefore to try other means, and trepan the bone in several places, till whatever is rotten be taken away.

But the point I refer to is this: the old instrument, the trepan, had a handle like a wimble, what we call a brace or bit-stock.