self-retaining urethral catheter

例句：

1. 1. The patient was given a self-retaining urethral catheter for pain relief.
   患者被给予一个自留式尿道导管以缓解疼痛。
2. 2. The procedure involved inserting a self-retaining urethral catheter into the patient's bladder.
   该程序涉及将自留式尿道导管插入患者的膀胱中。
3. 3. After the surgery, the patient was moved to a recovery room with a self-retaining urethralcatheter in place.
   手术后，患者被转移到一个有自留式尿道导管的恢复室。