The subject matter of the invention is a medical device for assisting self- catheterization and instillation of drug-solutions into the bladder in female patients, consisting of a grip element advantageously a syringe, or a handle, of a catheter or of a leakage-free adapter for injection, of a three-way tap and of an urine drainage bag and process using this device. The device consists of switchable light force (6), of power supply (7), of mirror (8) and/or of one or more cameras (13). The essence of the invention is that the device can be fixed on the dosing syringe (1 ) itself and beside or instead of the mirror (8) is consisting also of one or more cameras (13). The catheter (2) and the urine drainage bag (13) is connected through the three-way tap (9) so that the syringe (1 ) connected to the medium outlet of the three-way tap (9) is functioning also as the grip element (1 1) of the device. A holder element (12) is fixed on the grip element (11). On or in the holder element (12) a micro switch (5), a light source (6), power supply (7) can be found. Further on a mirror (8) or a camera (13) is fixed expediently to the holder element (12) by a fixation element (15). As an advantageous solution of the invention for solely urine drainage that for grip element (11 ) the syringe (1 ) is replaced by a handle (1) and the three-way tap (9) is replaced by a spring-grabbing clip-on unit (9) releasable clip-on fixed to the catheter (2) which is connected directly to the tube (4) of the urine drainage bag (3). As another advantageous solution an innovative leakage-free adapter for injection (16) is used for solely catheter-free injection of drug solution into the bladder. In this case the catheter (2) is replaced by this adapter (16). The subject matter of the invention is also a process for using the device.
