trephine
IPA: trˈɛfin
noun
- (medicine) A surgical instrument with a cylindrical blade used to remove a circular section of tissue, f.e. bone or cornea; a trepan.
verb
- (intransitive) To use a trephine during surgery.
- (transitive) To perforate with a trephine.
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Examples of "trephine" in Sentences
- Clarke has a trephine in his right hand.
- A trephine is a surgical instrument with a cylindrical blade.
- Bone marrow samples can be obtained by aspiration and trephine biopsy.
- “A trephine is the only conceivable way to save his life,” Reilly went on.
- A trephine is an instrument used for cutting out a round piece of skull bone.
- A different, larger trephine needle is inserted and anchored in the bony cortex.
- A trephine is a medical saw used to open the skull for surgery or to relieve pressure from brain swelling.
- The surgical team will fix a metal ring over the sclera, providing a base for the trephine, that is placed over the cornea, in order to cut it.
- After the removing of the trephine, the doctors will use the donor cornea for cutting a circular graft, meaning a button-shaped section of tissue.
- "And when I saw this little boy, who had one eye done with the conventional procedure and the other with the trephine, I thought to myself, 'He's experimenting on these people'."
- But he alerted hospital officials about his suspicions and then, being told Rowsey had permission to experiment with the trephine, got the American Academy of Ophthalmology to launch an investigation.
- An E. N.T man to whom I told the story also said it is common and wanted to refer me to a neurosurgeon, "He will simply pass a trephine though the skull into the affected area and remove the focus, by either excision or electro-cautery, and you will be cured".
- After ulcers of the cornea, which have been large, the inequalities and opacity of the cicatrix obscures the sight; in this case could not a small piece of the cornea be cut out by a kind of trephine about the size of a thick bristle, or a small crow-quill, and would it not heal with a transparent scar?
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