| 摘要 |
A disposable, inexpensive instrument is provided with the aim to facilitate an injection of bulk enhancing agent into the urethral sphincter. An idea of a balloon of Foley's catheter has been exploited where the balloon acts as a retainer immobilizing the instrument in a desired position inside the bladder during the injection. The instrument has a shape of an elongated shaft with a multitude of curved channels guiding and deflecting the needle to an appropriate angle, depth of penetration and exact location on the sphincter during the injection.
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