Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A hollow flexible tube for insertion into a body cavity, duct, or vessel to allow the passage of fluids or distend a passageway. Its uses include the drainage of urine from the bladder through the urethra or insertion through a blood vessel into the heart for diagnostic purposes.
from The Century Dictionary.
- noun In surgery: A tubular instrument introduced through the urethra into the bladder, to draw off the urine when its discharge is arrested by disease or accident. ⟨b) A tube for introduction into other canals: as, a Eustachian catheter.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Med.) The name of various instruments for passing along mucous canals, esp. applied to a tubular instrument to be introduced into the bladder through the urethra to draw off the urine.
- noun See under
Eustachian . - noun one adapted for passing an enlarged prostate.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun medicine A small
tube inserted into abody cavity to removefluid , create anopening ,distend apassageway oradminister adrug
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a thin flexible tube inserted into the body to permit introduction or withdrawal of fluids or to keep the passageway open
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
Examples
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A thin catheter is passed through a small incision into a blood vessel, usually in the knee or arm.
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I am meeting with a cardiologist and will probably undergo what they call a catheter ablation to correct the SVT ...
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Once the catheter is placed we will secure the tube to your child's leg with a piece or two of tape and the exam will begin.
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When can I remove the bandage after the catheter is removed?
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After the catheter is removed, a bandage is applied to the catheter insertion site.
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If the clot can be treated by medication, the catheter is left at the clot site and connected to a pump that will deliver the medication at a precise rate.
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A catheter is inserted into the bladder, which is filled with fluid that can be seen by x-ray.
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A special catheter is placed into the bladder to measure the pressure while the bladder is filled with fluid.
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The other end of the catheter is tunneled under the skin and exits from the side of the chest.
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Using x-ray guidance, the catheter is maneuvered to the area where the clot has formed.
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