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The device is indicated for use for applying ink to the skin to identify the margins for radiation therapy. The device is intended to be used in clinical settings by Radiotherapy professionals.

The Comfort Marker 2.0 is an application system for placing reference marks on or in patient's skin to facilitate set-up for radiation therapy treatment. The device includes the following components: - 1. Battery powered control unit with pen - 2. Main powered docking station with adapter and - 3. Safety needle (single use, sterile) Mode of operation: To achieve the intended use, the device uses a safety needle (shown in figure 2). This actuation is achieved by a longitudinal movement of the driving rod inside the pen. The driving mechanism comprises electromagnetic coils, switched on and off by the controller for generating magnetic fields. Hereby, the distance moved by the driving rod can be controlled precisely by controlling the amount of applied energy. The driving device comprises a guiding mechanism arranged for allowing only movement of the driving rod along the longitudinal direction. The actual distance travel is measured with a measuring coil and used to control the desired depth setting. The system contains a mechanical end stop in the safety needle to ensure that the needle will not protrude more than 1 mm. The docking station is used to recharge the control unit.