Catheter apparatus and operating method thereof

A catheter apparatus for discharging urine from a bladder, the catheter apparatus comprising:

• a replaceable module comprising a control unit;
• a main body portion comprising:
• a tube having a first terminal and a second terminal, wherein the first terminal of the tube is coupled to the replaceable module and the second terminal of the tube is configured to be inserted into the bladder;
• a urine guide opening disposed at the second terminal of the tube and configured to guide the urine into the tube when the second terminal of the tube is inserted into the bladder;
• and
• an elastic unit disposed at the second terminal of the tube and coupled to the control unit;
• and
• a sensing module coupled to the control unit and configured to sense whether the second terminal of the tube is inserted to a correct position in the bladder and transmit a sensing result to the control unit;
• wherein the replaceable module further comprises:
• an indicating unit, coupled to the control unit and configured to indicate the sensing result;
• wherein the indicating unit is a display monitor, a speaker, a light emitting unit, a hollow tube comprising an indicator or an inflatable elastomer configured to indicate the sensing result by displaying a text, a symbol or an image, making a sound, emitting a light, a high position or a low position of the indicator in or whether the elastomer is inflated;
• the elastic unit is disposed in an air flow passage and the indicating unit is also disposed in the air flow passage, and air flows through the elastic unit at first, when the second terminal of the tube is not inserted into the correct position in the bladder, the elastic unit fails to swell and the air flowing through the elastic unit flows to the indicating unit to move the indicator of the indicating unit from a first position to a second position;
• when the second terminal of the tube is inserted into the correct position in the bladder, the elastic unit and the air flowing through the elastic unit flows into the elastic unit instead of flowing to the indicating unit to move the indicator of the indicating unit to the first position.