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What does a rectifier do?
Changes alternating current (a/c) to direct current (d/c)
What modality is interrupted current?
Thermolysis
Which modality breaks down tissue and is speeded by heat?
Blend (Galvanic = breaks down tissue; thermolysis = speeded by heat)
What is the natural insulator in galvanic?
Sebum (oil)
Intensity x Duration = ?
Units of Lye Produced (Galvanic/Blend) OR Treatment Energy
What are different types of conductors (transmits)?
Any substance which readily transmits electrical current: Probe; metals (stainless steel, gold, copper), human body
What is an example of an insulator (resists)?
Rubber; any material which will resist the passage of an electrical current
What is Galvanic measured in?
Miliamperes (ma)
Ohm =
Resistance; the unit of electrical resistance
Watt =
Power; the unit of power, ampere x volt
Volt =
The unit of electrical Force/pressure
Amphere =
The unit of electrical Strength
Caustic =
More damaging
What is a circuit?
A path; the entire path traveled by an electrical current from its generating source, through conductors and back to its source
What are the 5 variables that affect treatment?
Length of time current is applied
Intensity of current
Depth of insertion
Needle diameter
Moisture gradient
Virgin hair growth =
Superfluous (excess) hair condition that hasn’t been tweezed, cut or tampered with in the previous 8 months or longer.
What does FCC stand for?
Federal Communication Comission
Who coined the term High Frequency Blowout (HFB)?
James Shuester
How should you hold the probe?
Between the thumb and first finger
What is Faradays Law?
Intensity x Time = Lye Produced
What is blend modality?
Galvanic (Chemical reaction) + thermolysis (alternating heat) happening simultaneously or sequentially
What happens when chemicals and heat mix in blend modality?
They move faster
Is blend modality alternating current or direct current?
Alternating
What are the key factors in Galvanic?
Direct current
Slow
Salt + water = Lye
One direction (circuit, path)
Chemical decomposition
Anaphoresis (-) and Cataphoresis (+)
What are the main factors in Thermolysis?
Alternating current
Fast
Heat + water (moisture)
Flows in one direction, then the opposite
Coagulation/dessication
What is more dominant in blend modality, galvanic or thermolysis?
Thermolysis
What type of needle do you use in blend modality?
Tapered blunt probe
What are the main factors in anaphoresis?
Negative (black)
Irritates (promotes redness)
Softens
Produced sodium hydroxide (Lye/NAOH)
Destroys tissue
Vaso-dilation
“Cathode” = needle
Hydrogen gas/chlorine gas (not important to electrologists)
What are the main factors in cataphoresis?
Positive (red)
“Anode” = indifferent electrode/metal pole
Calm, smooth, firm
Production of hypothesis acid
Vasoconstriction
Who invented electrolysis?
Dr. Charles Mickael (ophthalmologist) in 1875
How does the current work in galvanic?
Galvanic travels in one direction (circuit/path), constant and even in slow motion from negative (needle) to positive (hand piece) to the machine/device (source) to get recharged
What is galvanic?
Chemical decomposition (breaking down) of tissue → salt + water = NAOH/Lye/Sodium Hydroxide
What is tattooing?
If you put the needle on the positive jack, you can create black oxidation (probe disintegrates)
Does galvanic have a point effect?
Galvanic has no point effect, current is spread around evenly on the needle (need water + salt)
How many units of lye does coarse hair on a female face need (especially on chin)?
80 units of lye
What is ionization in galvanic?
Pushing product into unbroken skin
How does thermolysis work?
Generates heat which causes coagulation (clot) and through evaporating moisture (water) in the tissue. (Ex. Chicken in microwave)
What are other names for thermolysis?
Radiofrequency
Microwave
Shortwave
Radio wave
Friction
Oscillation
Tesla
Diathermy
High frequency
How does the current flow in thermolysis?
Flows in one direction, then the opposite and disappears in air (dissipates)
What is thermolysis measured in?
MHz, megahertz; most commonly 13.56 and 27 MHz
What shape is the heating pattern in thermolysis?
A teardrop or pear shape current
Does the heating pattern shape ever change in thermolysis?
No, it can get bigger or smaller but the shape always stays the same
What kind of probe do you use in thermolysis?
Tapered blunt needle probe (insulated)
A bigger needle = what heating pattern?
A bigger heating pattern
What is the point effect (PTE)
The most concentration of heat (tip of the needle)
What is electrocoagulation?
Thickening (cooking) the tissue with electricity
What is electrodessication?
Drying the tissue with electricity
You should stretch the skin ? to the direction of the insertion (or hair growth), and insert the needle on the ? of the hair.
Parallel; underside
The distance from the surface of the epidermis to the bottom of the bulb is called what?
“Hair Depth” - use the distance between the tweezers and bulb as a depth guide
Where does the inner root sheath stop on the hair follicle?
The inner root sheath does not extend all the way up the hair shaft because it stops at the sebaceous gland duct
What is the average time of hair reappearance after waxing or tweezing “deep, coarse, bulbous terminal hair” (as on chins)?
5-6 weeks
What is the average time of hair reappearance after waxing or tweezing “medium depth terminal hair” (as on the side of face and body)?
6-7 weeks
What is the average time of hair reappearance after waxing or tweezing “medium depth intermediate or accelerated vellus hair”?
7-9 weeks
What is the average time of hair reappearance after waxing or tweezing “shallow vellus hair” (downy, general face)?
8-10 weeks
What does a “shaving case” refer to in electrolysis treatment?
Any case in which a patron has been removing superfluous (excess) hair by means other than tweezing or waxing.
Vellus comedones are also known as
Trichostasis Spinulosa or Bundlehaar
What are vellus comedones?
A bundle of tiny vellus hair protruding from a follicle held together by sebum; more of a skin problem not a hair problem.
What is a corkscrew?
A truly distorted hair follicle; it is not unusual to see the bulb of the hair just beneath the horny layers of the epidermis.
What is the depth gauge?
The distance between the bottom of the hair root (bulb) and the point at which the forceps grip the successfully epilated hair.
Always expect to insert deeper when entering a follicle containing what type of hair?
A gray hair; Natural gray hair is always deeper in its last stage of anagen
In electrolysis, the area of influence surrounding the probe (that we experience as heat) is call what?
The high frequency field (HFF)
What are examples of magnetic materials?
Iron, cobalt, nickel
Battery is not what?
Dry, paste form
Direct current or Galvanic is also known as what?
True electrolysis - the application of direct or galvanic electrical current to living tissue
The electrical current in galvanic causes the salt and water contained in the tissue to break down into what new substances?
Sodium hydroxide (lye), hydrogen gas and chlorine gas
Which chemical produced in galvanic is caustic and created an effective means of destroying the cells at the base of the follicle?
Lye
What is electricity?
The flow of electrons (negatively charged particles) along a conductor
In galvanic, direct current (d/c) is
A constant and even flowing current, traveling in one direction
In thermolysis and alternating current (a/c) is
A rapid and interrupted current, flowing in first in one direction and then in the opposite direction
Define anaphoresis
The use of the negative pole to produce an alkaline effect on the skin. Increases blood supply, softens skin, stimulates nerves
Define cataphoresis
The use of the positive pole to produce an acid effect in the skin. Closed follicles, decreases redness and establishes proper skin pH
What is static electricity?
At rest and builds on non-conducting substances or insulator
What kind of needle do you use in Galvanic?
Cylindrical needle non-insulated
Electrons flow from
an area where these is an excess of electrons to an area where there is less; negative to positive
All matter is made up of
Molecules, the smallest part of matter that still maintains its individual physical and chemical characteristics; they are divided into atoms
For a current to keep flowing there must be a
continuous path (or circuit) from the generating source of the electricity through all the conductors and back to the source
In direct current galvanic electrolysis the electrons flow from
the machine source, through the needle holder, and into the electrolysis needle which acts as the negative pole. From the needle the electrons flow through the hair follicle, through the body, through the positive electrode and back into the machine.
In alternating current, the current flow
continuously reverses its direction. The electrons move back and forth along the conductor as each source pole rapidly changes its polarity, in cycle with each back and forth movement.
The high-frequency alternating current required for thermolysis is produced by an
oscillator, which increases the frequency of our household alternating current (60 cycles per second) to the millions of cycles per second required for thermolysis.
Why are the frequencies on electrolysis machines regulated?
The frequencies are in range of radio waves and thus are regulated in order that there is no conflict with radio wave transmission.
True or False: The thermolysis machine is giving and taking away energy almost simultaneously. Some of the electrical energy is lost to the surrounding air and furniture.
True
If a direct current is passed through the probe into the conducting salt (NaCl) and water (H20) tissue fluid in a hair follicle what is produces?
The salt becomes Na+ and Cl-, and the water becomes H+ and OH-. These free ions recombine to create NaOH (Lye/Sodium Hydroxide) and H2 (Hydrogen Gas)
True or False: There is more moisture in the depth of the follicle, so more lye and more destruction is produced there.
True; the upper portion of the follicle is less moist, and additionally, the sebum produced by the sebaceous glands at the top portion of the follicle is a poor conductor and acts as an insulator
Who devised the term “units of lye'“?
Arthur Hinkle
What did Hinkle state about units of Lye?
1 unit of lye was produced if 0.1milliamp intensity of current flowed for 1 second. Thus, 0.2 milliamps x 2 seconds = 4 units of lye
What is high frequency blowout?
If the intensity is too high, then the tissue fluid may boil, which produces steam. The steam interferes with the heat rising up in a pear shaped pattern, and the heat may go straight back up the needle, producing unwanted surface effects. This phenomenon is indicated by a crackling sound and excess sticking of tissue debris to the electrolysis needle.
In blend method, galvanic electrolysis only requires ? the amount of time normally needed for galvanic electrolysis alone.
1/4
What factors should you consider when selecting the length of the probe?
Make sure the probe inserts fully into the follicle so that the probe tip can reach the dermal papilla in its late anagen stage. They are available in extra short, short, medium, regular and long.
How should you choose the diameter of the probe?
Match the probe thickness to the thickness of the hairs being epilated. Probe sizes rage form .002 to .007, 2-7 thousands of an inch.
Does the diameter of the needle affect the amount of Lye produced?
No, however when you use a thinner needle, lye is initially produced in amore concentrated area, so pain may be greater; vs a thicker needle where the current will be distributed over a larger area.
Regardless of modality, does a larger or smaller needle yield a more comfortable heating /lye distribution pattern?
Larger
Does choosing a needle larger (within reason) than the hair shaft cause bruising?
No
Dr. Charles Michel was an ? , that invented electrolysis in ? .
Opthamologist; 1875
Electrolysis is the use of an electric current to remove what?
Hair roots
Galvanic electrolysis is a modality of electrolysis that uses what type of current?
Direct current, moving in a circuit from negative to positive
Electric energy can be produced through how many sources?
6 main sources: Friction, Pressure, Heat, Light, Magnetism, Chemical Action
A substance that allows electricity to pass through it is known as:
a conductor
True or False: A cathode is a pole used to negatively charge ions.
TRUE
Iontophoresis is also know as?
Ionization