【正文】 l blend. ? Follow instruction manual to disable all automatic functions. ? Find starting point on epilator, should be in manual. It will be a specific number such as “3” or it may be a number on the HF meter. Classic Blend ? Confirm the starting point by setting the epilator at the lowest HF setting. ? Insert into a medium size hair on your arm, you should feel mild current in 23 seconds. Keep the current on for 20 seconds. ? If these conditions are met your epilator is correctly set. ? Begin treatments at your starting point, allow the patient to get used to the low current, then gradually advance HF. Classic Blend ? Repeat this process several times, increasing HF intensity slightly each time that you coagulate and epilate a new hair. ? Communicate with the patient, let them know that your are trying to find their pain tolerance. ? Remember that most West Coast electrologists use the two hand technique, which enable them to count the seconds that it takes to have the hair release with progressive epilation. Classic Blend ? The working point reveals the skin’s electrical resistance. ? Dry skin has higher resistance, more HF is needed, and vice versa for moist skin. ? The HF working point is your electrical conduit for DC. ? Early pioneers were confronted with obstacles as to how to bine two currents. Classic Blend ? HF is considered the dominant current, DC can block or “floodout” the HF. ? If DC is too high, the HF flow can be reduced. ? Hinkle realized that the correct amount of lye was necessary, therefore named the measurement the “unit of Lye”. ? Hinkle defined the unit of lye as the product of the amount current (in DC milliamperes) multiplied by the time current flow in seconds. Classic Blend ? For 20 yrs. Hinkle studied and collected data regarding the units of lye formulation. ? Small vellus hairs require 15 units of lye, 30 units on small terminal hairs, Medium require 45 units, large terminal need 60 units, and very large need 80 units. ? He learned that all hairs epilate with HF 320 seconds. Classic Blend ? Hinkle’s simple formula for blend is: divide units of lye by seconds of epiliation time. ? Example: judge a hair to need 30 units of lye, the time to epilate is 10 seconds. Divide the 30 units by 10 seconds and you get 3. ? The number three is the setting for your DC meter 3mA. ? If the numbers are not even set the DC meter to the nearest round number. ? Do not use the seconds counter, count the seconds yourself. Classic Blend Summary ? The basic steps you have learned will bee second nature. ? Choose correct needle size, find your HF working point, set the DC meter! ? You got it! DC amp。 HF Experiments ? Hinkle39。s Meat Experiment demonstrate several characteristics of current. ? Current will react differently in meat as it is not living tissue. ? These tests will give visible evidence of how DC amp。 HF acts on human skin. What You Need ? 1. Beefsteak – fresh and moist with a little fat. A small cube of meat is all you will need. ? 2. Glass of saltwater: mix 2 teaspoons of salt in water. ? 3. Sheet of Aluminum Foil Basic Setup ? Place meat on aluminum foil. ? Wet the meat with saltwater – this grounds meat to aluminum and moistens the meat for a good electrical conduction. ? Roll the DC ground up in the aluminum foil. ? Wet your hand with saltwater and firmly hold the aluminum foil and ground – this grounds the HF. ? Check all cords are connected properly. ? Use a .004 inch diameter needle. ? Periodically moisten the meat and your hand with saltwater in ensure proper electrical contact. Test 1:DC 1. Lay needle on meat. 2. Set DC meter to mA (5 tenths milliamperes). 3. Allow current to flow 24 minutes. Observe narrow pattern of lye form with hydrogen bubbles. 4. Stop current, wipe away foam with finger. 5. Observe groove that has formed as meat dissolved. There is not “cooking” of tissue. 6. Repeat this experiment using mA, observe much faster DC lye formation. Test 2: DC Inserted ? 1. Insert needle deeply into meat. ? 2 Turn DC to mA (10 tenths milliamperes). ? 3. Allow current to flow for 24 minutes. – Frothing appears at insertion site. ? 4. With current flowing, slide needle up and down in meat. Observe the needle does not stick to meat as there is no cooking of tissue. ? 5. Set current at mA, make a very shallow insertion – immediately abundant lye is formed with much bubbling. (Current is concentrated on small surface area thus generates concentrated lye.) Test 3: HF ? 1. Lay needle on meat. ? 2. Use 6090 HF level – observe meat turning brown. Note coagulation starts at the tip of needle and flows up. Heating pattern is broad. With magnification you will see that HF causes moisture to boil. Turbulence is created by HF ? 3. Experiment using different current strengths. ? 4. Experiment using different needle lengths. ? Observe : higher current creates faster coagulation, less needle contact with meat causes rapid violent cooking. Note: meat may stick to needle. This indicates unnecessary tissue destruction. Remove any tissue from needle as it insulates the needle which will make the subsequent test difficult Test 4: HF Inserted ? 1. Insert needle deeply into meat. ? 2. Turn HF dial to high output (70V90V). ? 3. Allow current to flow 20 seconds. ? Observe: at 1520 seconds the cooking at insertion point, current has risen slowly. ? 4. Insert needle shallow. ? Observe: almost instant tissue destruction and burning. (this happens to your client when you make a shallow insertion . Note the tissue sticks to the needle . ? 5. Insert deeply again and apply high level HF. Slowly withdraw the needle until the needle is out of the skin. ? Observe: