knife needle


needle

 [ne´d'l] a sharp instrument used for suturing, for puncturing, or for the guiding of ligatures.aneurysm needle a blunt-pointed, curved needle with the eye at the point; used for passing ligatures around aneurysms or vessels.aspirating needle a long, hollow needle for removing fluid from a cavity.atraumatic needle an eyeless surgical needle with the suture attached to a hollow end.biopsy needle a hollow needle with an inner needle that detaches tissue for biopsy and brings it to the surface of its lumen; types include the Menghini and Silverman needles. See also biopsy" >needle biopsy.cataract needle one used in removing a cataract.discission needle a special form of cataract needle.fine needle a very thin, highly flexible steel needle with a narrow inner core used to cannulate very small bile ducts to perform transhepatic cholangiography (fine needle transhepatic cholangiography).Hagedorn's needle a form of flat suture needle.hypodermic needle a hollow, sharp-pointed needle to be attached to a hypodermic syringe for injection of solutions.knife needle a slender knife with a needle-like point, used in ophthalmic operations.ligature needle a long-handled, slender steel needle having an eye in its curved end, used for passing a ligature underneath an artery.Menghini needle a needle for liver biopsy, not requiring rotation to cut loose the tissue specimen.Reverdin's needle a surgical needle with an eye that can be opened and closed by means of a slide.scalp vein needle a short rigid needle with flexible wings on each side; used to infuse IV fluids for short periods of time, in patients with small veins or in children.Silverman needle a biopsy needle for taking tissue specimens, consisting of an outer cannula and an inner split needle with a longitudinal groove in which tissue is retained when the needle is withdrawn.skinny needle fine needle.spatula needle a minute needle with a flat or slightly curved concave surface that does not cut or pierce.stop needle one with a shoulder that prevents too deep penetration.swaged needle a needle with no eye, having suture attached to a hollow end.

knife nee·dle

a very narrow, needle-pointed knife used in discission of a cataract. Synonym(s): cataract needle