Antique EBONY Medical Surgical Trephine Trepanning Craniotomy Skull Drill Saw

Description

From my Medical Collection
-
Here we have an
Antique
‘
Unmarked
’
EBONY Medical Surgical Trephine Trepanning Craniotomy Skull Drill
/Saw
.
There is no maker's name on this instrument. (Trepanning is the medical process of drilling or cutting a hole into the skull in order to relieve pressure on the brain tissue, lift a compression fracture of the skull, or remove a blood clot on the brain.
If a person had a concussion with depression of the skull bone, that depressed area would need to be lifted or removed and then the clot under the concussion removed to alleviate trauma induced symptoms.) This hand operated T-Handle Drill has an EBONY handle, nickel-plated shaft, and a round surgical steel saw blade.
The shaft also has a sliding steel internal spike that can be moved into position to act as a centering point when turning the circular cutting blade.
This instrument is from the pre-sterilization period (late-1800's) as evident by the use
of
natural materials (Ebony) and the lack of totally smooth surfaces in the design of the instrument.
The drill is in very good condition with good nickel coverage and no damage to the blade. The Ebony handle has a very nice turned shape and 4 'checkered' panels to increase the gripping ability.
There are NO cracks in the handle, but there is one very small minor area of abrasion near one end of the handle (see pics).
The drill is approx. 4-3/4"" tall with a 4" handle.
The round blade will cut a 7/8" diameter hole.
An excellent example to add to a medical collection !
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