System of the present invention provides a kind of catheter desludging device, includes an ontology and a nipple so that one of catheter water polo carries out fluid transporting operation. Also, the ontology has an accommodating space and plural pars contractilis, and the nipple system connects the what ontology and is connected to the accommodating space. Wherein, when the nipple system connects and screws one of what catheter injection port, so that it is connected state that the accommodating space and the water polo system, which are in, and through compressing the pars contractilis in transporting fluid to the water polo； And when the nipple system connects and unscrews the what injection port, the accommodating space and the water polo system are in for disconnected state. Thereby, which can manipulate the water polo in a manner of compression, avoid tradition using the operation mode of plural syringe, and then promote efficiency of the catheter in merging and removal.本發明係提供一種導尿管輸導裝置，以供一導尿管之一水球進行流體輸導作業，包含一本體及一螺紋接頭。並且，該本體具一容置空間及複數伸縮部，且該螺紋接頭係連接於該本體並與該容置空間連通。其中，當該螺紋接頭係連接並旋緊於該導尿管之一注射口時，使得該容置空間及該水球係呈為連通狀態，並透過壓縮該伸縮部以供輸導流體至該水球內；而當該螺紋接頭係連接並旋鬆於該注射口時，該容置空間與該水球係呈為不連通狀態。藉此，該導尿管輸導裝置係能以壓縮之方式操控該水球，避免傳統使用複數針筒的作業方式，進而提升該導尿管在置入及移除時的效率。
