Atlas of Colposcopy: Principles and Practice

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Treatment by thermal ablation – The battery-driven model  

The lightweight (weighs ~250 gm) compact variety of thermal ablator is powered by a rechargeable Lithium-Ion battery. The machine has a built-in light to visualize the cervix and an activation button to switch it on and off. The machine can be pre-set to different treatment timings (20 sec, 30 sec or 40 sec) and desired temperature (100o C). The procedure timing is automated, which means that the treatment automatically stops once the pre-set time is over and there is a visual and audible indicator. The machine includes multiple reusable probes with tips of 16 mm and 19 mm diameter. The tip may be either flat or have a small projection (nipple) at the center. The probe can be fitted to the machine by the probe connector that is covered with a silicone cap when the machine is not in use. A battery charger is included in the pack.

Setting up the battery-driven model:

Step 1. Charging the battery
  • Plug the charger into a power outlet.
  • The green ‘power’ LED illuminates when the power is turned on.
  • Place the battery into the charging base. The red LED illuminates indicating that the battery is being charged.
  • The red LED will turn off when the battery is fully charged.
  • A completely discharged battery takes about 2 hours to be fully recharged.
  • Remove battery from the charger and disconnect the charger from the A/C outlet.
  • The battery may be left to be charged overnight without any damage.
Step 2. Getting the machine ready
Insert a charged battery into the handle of the unit by pushing the battery into place until you feel the locking tabs snap (the battery can be inserted only when correctly orientated). Select the probe of desired size and remove the silicone cover from the connector. Insert the probe connector into the front of the unit. Ensure that the probe is tightly inserted. If the probe is not securely connected, the machine will power on briefly and shut itself off.

Step 3: Turning the machine on
Turn on the machine by pressing the ON/OFF button located on a panel on the handle. The green LED on the panel and the white illumination LED at the front are turned on. One blue light on the panel will flash indicating that unit is ready to be used (tip not heated yet).

Step 4: Heating the probe
Press the ON/OFF button a second time to start heating the probe tip. Four blue timer LEDs on the panel will flash for a few seconds indicating that the tip is getting heated. When the tip gets heated to 100o C within a few seconds, the blue timer LEDs stop flashing, and you can hear a single beep. Treatment can start now.

Step 5.
Once the treatment cycle is running, the blue timer LEDs turn off with an audible beep, one at a time, after each 1/4 of the procedure has finished. When all four (4) blue timer LEDs are turned off a longer audible beep is heard, the unit is no longer applying heat. It has commenced its cool down cycle. Once the cool down cycle is complete, the front white LED lights will turn off, and the probe may then be removed from the treatment area. If a second treatment area is needed, repeat the above steps before removing the probe.

NOTE: The battery is removed by compressing the two locking tabs on the sides near the battery base releasing the lock and, while firmly holding the unit head, pulling the battery down and out of the handle.

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