Geschiedenis: De geboorte van elektrische epilatie
1875: Electrolysis. Elektrisch ontharen middels elektrolyse (d.m.v. galvanischestroom)
bestaat sinds Dr.Charles E. Michel Amerikaanseoogarts, ingegroeide wimper
1890: Thermolysis Jacques D'Arsonval iswetenschapper en de uitvindermedische
hoogfrequentewisselstroom ook wel“diathermie” genoemd
Multiple needle en DiathermieSinds
1916: Paul N. Kree, Amerikaanseuitvinder en ingenieur heeft Multiple needle bedacht, dit
wordt nog gedaan in USA en AUS
1924: Henri Bordier, Franse doctor. Diathermie voor het eerst uitgevoerd met als doel
haarverwijdering
Combined currents
1948: Henri E. St-Pierre, Amerikaanse pionier en Arthur Hinkel, ingenieur hebben de
Blendtechniek gepattenteerd. Dit is het combineren van hoogfrequente wisselstroom met
galvanische stroom. De actie gebeurd sneller en er komt loog vrij. Chemische vloeibare
substantie waardoor de haar sneller wordt vernietigd.
FORMULE VAN HINKEL: (intensity Xduration = units oflye) frequentie x de tijd die je
nodig hebt = loog eenheden. (= de hoeveelheid loog die je nodig hebt om de haar vernietigd
te krijgen.)
Veel gebruikte Blendtechniek
1996: Heeft Michel Bono, electrolysist sinds 1976, een handboek gepubliceerd en
lesgegeven in Noorwegen, Engeland, Canada, Nederland, Duitsland, USA, Japan, Peru,
Australië en Nieuw-Zeeland met een techniek die nog veel gebruikt wordt in Nederland.
Techniek:
- HF opdraaien tot pijnpunt van de patiënt (HF = hoogfrequente wisselstroom)
- Op HF bepalen wanneer haar loslaat (6–20 sec)
- DC instellen volgens Loog tabel (Direct Current = galvanische stroom)
- 2 seconden nalogen in een lege follikel
Important milestones:
,Geschiedenis: De geboorte van LASER
1916 Einstein voorspelt gestimuleerde emissie van fotonen
1960 Theodore Maiman bouwt de eerste laser op basis van robijn (robijn om het licht te
leiden.)
1961 Leon Goldman(dermatoloog) Met Rubylaser tatoeages en pigment
1962 Uitvinding van de Halfgeleiderlaser door Robert N.Hall = Diodelaser (strakkere stroom
en strak laserpoint)
FDA = Food and Drug administration
De verschillen
Electrolyse
- Permanente haarverwijdering
- Rood, blond, grijs en gepigmenteerd haar
- Elektrische stroom als medium
- Probes (stroomgeleiders) naaldjes waarmee je de stroom geleid.
Laser/ IPL
- Permanente haarvermindering
- Gepigmenteerd haar
- Licht als medium vorm is straling
- Handstuk waar straling uitkomt
Overig Ontharen tot in de Bulge
- Bleken Effectief, zo pijnloos mogelijk, snel
, Module 1: The endocrine system and Anatomy of the hair
- Text: pp 14-23: anatomy of the hair t/m arrector pili muscles op p23
Components of the Hair Follicle
The different components of the hair follicle are:
- The short canal which includes:
- the ostium, opening of the follicle, often visible to the naked eye.
- the funnel, where the hair is not attached to the follicle; sebum, horny
debris and microbial colonies accumulate (=ophopen) in this segment.
- the collar, located at the base of the funnel, where the follicle
tightens around the hair; this is where the sebaceous duct is connected.
- The long canal: composed of the inner and outer root sheaths, it extends
from the sebaceous (= talg) gland down to the base of the hair.
- The connective bulb: composed of connective fibres, this component
forms the slightly enlarged termination of the long canal; it rests on the
dermal papilla, also called the hair follicle papilla. Arrector pili muscles
are attached to the connective bulb.
Walls of the Hair Follicle
The walls of the hair follicle are made up of sheaths that enclose the hair:
- The inner root sheath: below the sebaceous gland, this sheath encloses the lower two-thirds of
the hair. It originates in the germinative cells of the bulb, and grows along with the hair. It
consists of a cuticle and two cellular layers, Huxley’s layer and Henle’s layer.
- The outer root sheath: this sheath forms the extension of the epidermis that intrudes into the
hair follicle. In the funnel down to the collar, all the layers of the epidermis are present. Below
the collar, the horny layer disappears and the prickle cell layer thins progressively. Once it
reaches the bulb, the sheath consists of the single basal (germinative) layer.
- The basal membrane: like the epidermis, the outer root sheath rests on the basal membrane,
which separates it from the dermis.
- The connective sheath: it consists of a web of connective fibres that surrounds the hair follicle. It
is most developed immediately above the bulb, where the arrector pili muscles are attached.
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