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

(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.

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]
References in periodicals archive ?
Bilateral marrow trephine infiltration was present in 06 patients in our study while the aspirate smears in these showed infiltration bilaterally in one case but were negative in four cases while in one case the marrow aspirate was hemodiluted.
Megaloblastic Anaemia- BM Trephine shows Megaloblastic Maturation (100x)
Caption: Figure 2: Fried egg appearance; bone marrow trephine (H&E stain).
Two round wounds of 5.0 mm in diameter were produced using trephine and a blade in dorsal skin of each of 24 KO and 24 WT mice.
The bone was removed with drills bits and trephines allowing removal of blocks from the sector according to the size of the defect to be filled.
She had a platelet count of 1 x [10.sup.9]/ mL (reference range 150-400 x [10.sup.9]/mL) but an otherwise unremarkable complete blood count, peripheral blood smear, and bone marrow aspirate and trephine biopsy result.
We reported a case of refractory classical Hodgkin lymphoma in which Hodgkin Reed-Sternberg (HRS) cells were only demonstrated in bone marrow aspirations and trephine biopsy sections only when the disease disseminated.
Detection of the bcr/abl gene in bone marrow macrophages in CML and alterations during interferon therapy-a fluorescence in situ hybridization study on trephine biopsies.
Placement of a frontal trephine allows for irrigation of the frontal recess in order to evacuate the frontal sinus in a minimally invasive manner.
The relationship between pressure regulation and anatomic localization as well as trephine sites in goniotrepanation.