Medical device and cooling-fluid/rinsing-fluid hose

A method for using a medical device comprising:

• a handpiece comprising a handpiece housing that encloses an interior of the handpiece;
• an effector arranged on or coupleable to the handpiece;
• a supply device for cooling and/or rinsing fluid to the effector;
• and
• a guide tube or guide cannula that passes at least partially through the interior in a longitudinal direction of the handpiece,
• the guide tube or guide cannula fixedly connected to the handpiece,
• the guide tube or guide cannula opening outwardly in a distal handpiece region and in a proximal handpiece region,
• the guide tube or guide cannula being configured to longitudinally guide a cooling-fluid/rinsing-fluid hose as the cooling-fluid/rinsing-fluid hose is inserted into the guide tube or guide cannula, wherein
• the medical device further comprises a flexible cooling-fluid/rinsing-fluid hose for insertion into the guide tube or guide cannula, wherein the flexible cooling-fluid/rinsing-fluid hose has a first end configured to be closed or covered by an end cap, wherein the first end or end cap is curved outward to facilitate insertion into the guide tube or guide cannula,
• the method comprising the steps of:
• inserting the closed first end of the flexible cooling-fluid/rinsing-fluid hose from outside the handpiece housing into a tube exit opening outward in the distal handpiece region and pushing the flexible cooling-fluid/rinsing-fluid hose through the guide tube or guide cannula so that the closed first end advances beyond a proximal tube entrance opening in the proximal handpiece region and protrudes from the guide tube or guide cannula;
• and
• cutting off the first end after the first end protrudes from the guide tube or guide cannula.