trephine


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Related to trephine: trephine biopsy, trephine drill

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.

tre·phine

(trē-fīn', -fēn'),
1. Synonym(s): perforator
2. To remove a disc of bone or other tissue by means of a trephine.
[contrived fr. L. tres fines, three ends]

trephine

/tre·phine/ (trah-fīn´) (trah-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.

trephine

(trĭ-fīn′)
n.
A surgical instrument with a cylindrical saw usually used for removing a disk of bone, especially from the skull, or for removing corneal tissue.
tr.v. tre·phined, tre·phining, tre·phines
To operate on with a trephine.

treph′i·na′tion (trĕf′ə-nā′shən) n.

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.

tre·phine

, trepan (trē-fīn', trĕ-pan')
1. A cylindric or crown saw used for the removal of a disc of bone, especially from the skull, or of other firm tissue as that of the cornea.
2. To remove a disc of bone or other tissue by means of a trephine.
[contrived fr. L. tres fines, three ends]

trephine

A hollow, cylindrical cutting instrument with the edge at one end sharpened or saw-toothed, used to cut a circular hole in bone or other tissue by pressure and rotation.

Trephine

A small surgical instrument that is rotated to cut a circular incision.

tre·phine

, trepan (trē-fīn', trĕ-pan')
1. A cylindric or crown saw used for the removal of a disc of bone, especially from the skull, or of other firm tissue.
2. To remove a disc of bone or other tissue by means of a trephine.
[contrived fr. L. tres fines, three ends]

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.
References in periodicals archive ?
The optimal trephine diameter and placement location have been evaluated and debated in the literature.
A+B BERTINS, the -s form of bertin, obsolete form of britten, to cut, slay or butcher -A+J TRISJEN, Dutch word meaning 'to hoist' (etymology of OED trice) -E+F TRAFINS, plural of trafin, 17th century form of trephine, a medical implement -E+K KINTRAS, plural of kintra, a Scots form of country -E+N NITRANS, plural of nitran, a suggested name for the chemical radical N[O.
A cranial defect, 3 mm in diameter, was created in the cranium of anesthetized mice using a water-cooled trephine.
In addition, trephine bone marrow biopsy was not performed, so the leukemia could have been missed, especially if the marrow was patchily hypoplastic.
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14) "One would have to call upon a wood cutter to amputate a leg, a cooper to trephine, a tailor to suture; and this reasoning is not outrageous since it follows naturally from the proposition that I refute.
Osteo-Site Coaxial Bone Biopsy Needle Set: The Osteo-Site Coaxial Bone Biopsy Needle Set features a 14 and 16 gage biopsy cannula, which includes a trephine tip to allow coaxial biopsy.
Histologic analysis of a trephine biopsy specimen showed persistent CLL with plasmacytic differentiation, and Grocott staining showed yeasts with central septa in small clusters.
This could include bone marrow aspirate and trephine biopsy examination, exclusion of an underlying coagulopathy, and testing for a variety of infections.
Bone marrow aspirate and trephine biopsy should be performed by an experienced operator.
5) Examination of material obtained by aspiration, combined with a trephine biopsy, allows for the most thorough morphologic assessment of the marrow.
Both patients had hematological findings characteristic of the accelerated phase of Chediak-Higashi syndrome-peripheral blood pancytopenia and marked hemophagocytosis (Figure 2) on bone marrow aspirate, along with lymphocyte infiltration on trephine biopsy section.