An instrument for trepanning, being an improvement on the trepan. It is a circular or cylindrical saw, with a handle like that of a gimlet, and a little sharp perforator called the center pin.
To perforate with a trephine; to trepan.
A âTâ shaped instrument used for removing a disk of bone, usually from the skull, also a verb. tres fines, three ends)
An instrument with a hollow needle that is used to remove samples of bone marrow
a surgical instrument used to remove sections of bone from the skull
a device like a cookie-cutter which is used to remove the damaged area of the patient's cornea and then to cut the same size piece out of the donor cornea
a surgeon's cylindrical saw with a guiding centre pin used for removing part of the bone of the skull
a type of saw most often used to cut out disks of bone from the skull
saw to remove a circular disk of bone for testing
Pronunciation: (TREE-fine) A surgical tool used to cut out circular pieces of bone or other tissue.
to drill into the skull; used in ancient times to let out the "evil" spirits that were causing the "falling sickness" (epilepsy?); some pre-Columbian American Indians used various shapes for their trephining holes such as diamonds, circles, etc. for no currently known reason
A trephine is a surgical instrument. It has a cylindrical blade and is used for harvesting of bone plugs, cutting holes in bones (i.e. the skull) or for cutting out a round piece of the cornea for eye surgery. A bone marrow trephine shows the pattern of the marrow as it lies in the bone, undisturbed.