부산대학교 도서관

Among the symptoms of patients with terminal cancer, ascites accumulated in the abdominal cavity reduces quality of life. Ascites causes uncomfortable symptoms, and for this reason, drainage is necessary to expel ascites. Traditional drainage methods require a lot of time for the patient to expel the right amount of ascites. However, patients diagnosed with terminal cancer do not have a long time to live after diagnosis, so the time required for treatment can be a catastrophic loss of time for the patient. Considering that diagnosed patients want to spend time with their acquaintances, a new method of ascites drainage is needed to improve the patient"s quality of life. We have devised two types of new implantable catheters. Afterwards, a laboratory apparatus was designed to test the performance of the catheter. The experiment was designed with two considerations: first, when abdominal pressure is higher than the bladder, malignant ascites should be allowed to move, and secondly, it is necessary to prevent reflux to prevent the movement of urine from the bladder to the peritoneum when the pressure in the bladder is higher than the abdominal cavity. As a result of the experiment, the catheter was activated under high abdominal pressure and drainage function was confirmed. However, in situations of high pressure in the bladder, the prevention of reflux did not work. When the pressure in the bladder is high, a sophisticated catheter must be designed to meet the second condition, which does not allow refluxes. Therefore, future research will be conducted to realize the idea of an implantable drainage catheter with a more sophisticated experimental setup and catheter.