catheter

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catheter

Med a long slender flexible tube for inserting into a natural bodily cavity or passage for introducing or withdrawing fluid, such as urine or blood

catheter

[′kath·ə·dər]
(medicine)
A hollow, tubular device for insertion into a cavity, duct, or vessel to permit injection or withdrawal of fluids or to establish patency of the passageway.
References in periodicals archive ?
Impedance and Ph-Metry; Disposable Electrode Catheter with 6 Channels For.
The next-generation system will feature a new four electrode catheter that delivers RF energy simultaneously and is designed to significantly reduce ablation time during renal denervation procedures.
When medicines proved ineffective, Gibson faced either open-heart surgery or radiofrequency catheter ablation (RCA), a minimally invasive procedure that implants electrode catheters in the heart.
Cardiac mapping involves the insertion of long, thin tubes with wires, called electrode catheters, into the heart to track its electrical signals and help locate the tissue causing the rhythm problem.