?:definition
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Urinary catheters designed for introduction into the urinary tract through the urethra and usually advanced until their distal tip is located in the urinary bladder. These catheters are mostly used for urinary drainage, irrigation, urethral dilatation, contrast injection, hemostasis, to collect reliable urine specimens, for urodynamic evaluation, for radiographic studies (e.g., cystograms), to assess residual urine, and for drug administration.
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