trephine /tre·phine/ (trah-fīn´) (trah-fēn´)
Trephine
trephine
trephine [trĕ-f€īn´, trĕ-fēn´]
1. a crown saw for removing a disk of bone, chiefly from the skull.
2. an instrument for removing a circular area of cornea.
3. to remove with a trephine.
tre·phine (tr -f n )n. A cylindrical or crown saw for the removal of a disk of bone, especially from the skull, or removal of other firm tissue such as that of the cornea. v. To operate on with a trephine. |
Trephine
A small surgical instrument that is rotated to cut a circular incision.
Mentioned in: Corneal Transplantation
trephine
[trifīn′, trifēn′]
Etymology: Gk, trypan, to bore
a circular sawlike instrument used in removing pieces of bone or tissue, usually from the skull. Also called trepan.
trephine [trĕ-f€īn´, trĕ-fēn´]
1. a saw for removing a disk of bone, chiefly from the skull.
Trephine. From Dorland's, 2000.
2. an instrument for removing a circular area of cornea.
3. to remove with this instrument.
trephine (trefēn´),
n a circle-cutting surgical instrument designed to remove a circumscribed portion of tissue. It permits the insertion of the heads of intramucosal inserts into the tissue.
Treponema
n a genus of schizomycetes composed of parasitic and pathogenic spiral microorganisms.
Treponema microdentium,
n a species found in the normal oral cavity.
Treponema mucosum,
n a species found in periodontal infections in man.
Treponema pallidum,
n the spirochete that causes syphilis in humans.
Treponema vincentii,
n a spirochete associated with acute necrotizing ulcerative gingivitis.
trephine
1. a crown saw for removing a circular disk of bone, chiefly from the skull. See also galt trephine, michel's trephine, searcy trephine.
2. an instrument for removing a circular area of cornea, e.g. Castroviejo trephine.
3. to remove with a trephine.
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