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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.

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.

Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.

1. A hollow cylinder of silver, India rubber, or other material, designed to be passed through the urethra into the bladder to drain this viscus of urine in case of retention from any cause. 2. A similar instrument used for passage through other canals.

Instrument used to empty the bladder.

A tubular instrument, usually of silver, to draw off the urine from the bladder.

In surg., a small tube introduced into the bladder to draw off the water.

A hollow tube, introduced by surgeons into the urinary bladder, for the purpose of drawing off the urine. Catheters are made of silver or elastic gum. See Bougie. The French generally use the word catheter for the solid sound or staff; and algalie and sonde for the hollow instrument.

A tubular instrument for discharging fluids from a cavity.

A tube designed for insertion into a canal, especially through the urethra into the urinary bladder; of the French, a lithotomy staff.

n. [Greek] A tubular instrument introduced into the bladder to draw off the urine;—a bougie.

A hollow and somewhat crooked instrument, to thrust into the bladder, to assist in bringing away the urine, when the passage is stopped.