| abstract |
The invention discloses a foldable hollow annular antibacterial urinary catheter, comprising a balloon, a water delivery pipeline, a hollow annular pipeline and a filling ring. Several folding layers are arranged inside the balloon, and the surface of the balloon can be wrapped with a hydrophilic coating Floor. The folded layer inside the balloon is folded by installing a folding line, and after entering the urethra, it is punched and expanded, so as to reduce the pain of entering the urethra to the patient. One end of the balloon is provided with a urine outlet joint, and the other end of the balloon is provided with a urine inlet, which can reduce the pain caused by the patient's urethra opening and protect the patient's urethra when entering the patient's interior. In addition, the hydrophilic coating improves the catheter's biocompatibility, lubricity, and antimicrobial properties, reducing patient discomfort and infection risk. |