nee·dle |
1. a sharp instrument for suturing or puncturing. 2. to puncture
with a needle, as in discission of the lens for treatment of
cataract. |
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Abrams needle, a biopsy needle designed to
reduce the danger of introducing air into tissues, as in pleural
biopsy. |
aneurysm needle, one with a handle, used in
ligating blood 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. |
Brockenbrough needle, a curved steel
transseptal needle within a Brockenbrough transseptal catheter;
used to puncture the interatrial septum. |
butterfly needle, a phlebotomy
needle with tabs like the wings of a butterfly that provide a
firm anchor for taping. |
cataract needle, one used in removing a
cataract. |
Chiba needle, fine n. |
Cope needle, a blunt-ended hooklike needle
with a concealed cutting edge and snare, used in biopsy of the
pleura, pericardium, peritoneum, and synovium. |
Deschamps needle, one with the eye near the
point, and a long handle attached; used in ligating deep-seated
arteries. |
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 percutaneous (or fine needle)
transhepatic cholangiography (see under cholangiography). Called
also Chiba n. and skinny n. |
Hagedorn needles, surgical needles that are
flat from side to side, with a straight cutting edge near the
point and a large eye. |
hypodermic needle, a short, slender, hollow
needle used in injecting drugs beneath the skin. |
knife needle, a slender knife with a
needlelike point, used in discission of a cataract and other
ophthalmic operations, as in goniotomy and goniopuncture. |
ligature needle, a slender steel needle with
a long handle and an eye in its curved end, used for passing a
ligature underneath an artery. |
Menghini needle, a needle that does not
require rotation to cut loose the tissue specimen in a biopsy of
the liver. |
Reverdin needle, a surgical needle having an
eye which 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. |
Seldinger needle, a needle with a blunt,
tapered external cannula with a sharp obturator; used for the
initial percutaneous insertion characteristic of the Seldinger
technique for arterial or venous access. |
Silverman needle, an instrument for taking
tissue specimens, consisting of an outer cannula, an obturator,
and an inner split needle with longitudinal grooves in which the
tissue is retained when the needle and cannula are withdrawn. |
skinny needle, fine n. |
spatula needle, a minute needle with a flat
or slightly curved concave surface that does not cut or pierce,
used in ophthalmic surgery. |
stop needle, a needle with a shoulder that
prevents it from being inserted beyond a certain distance. |
swaged needle, one permanently attached to
the suture material. |
transseptal needle, a needle used to
puncture the interatrial septum in transseptal catheterization. |
Tuohy needle, one in which the opening at
the end is angled 45 degrees so that a catheter or endoscope
through its lumen exits at an angle; used for examination or
treatment of the epidural space or subarachnoid space. |
Veress needle, a hollow needle consisting of
a sharp trocar with a slanted end surrounding an inner cylinder
with a blunt end; after the trocar is introduced into a body
cavity the blunt cylinder is advanced outward so that internal
organs are not injured by the sharp edge; used for insufflation
of a body cavity, such as for pneumoperitoneum in minimally
invasive surgery. |
Vim-Silverman needle, a needle used in
needle biopsy. |
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