Laser For EVLA (Endovenous Laser Ablation)
What is Endovenous Laser Ablation (EVLA)?
Endovenous means inside the vein, a small amount of local
anaesthetic is injected into the skin over the vein and a needle
inserted into it. A wire is passed through the needle and up the
vein. The needle is removed and a catheter (thin plastic tubing) is
passed over the wire, up the vein and the wire removed. A laser
fiber is passed up the catheter so its tip lies at the highest
point to be heated (usually your groin crease). A large quantity of
local anaesthetic solution is then injected around the vein through
multiple tiny needle pricks. All staff and the patient put on laser
safety specs as a precaution. The laser is then fired up and pulled
down the vein over about 5 minutes. You will hear a warning buzzer
ringing and may smell or taste burning but won’t feel any pain. If
you're having both legs treated the process is repeated on the
other leg. The laser and catheter are removed and the needle
puncture covered with a small dressing.
The treatment takes about 20-30 minutes per leg. You may also have
some foam sclerotherapy or some avulsions undertaken and a
compression stocking is then put on.
The 1470nm laser wavelength of CHERYLAS is effectively used in the
treatment of the varicose veins, 1470nm wavelength is
preferentially absorbed by water 40 times more than a 980-nm
wavelength, the 1470nm laser will minimize any post-operative pain
and bruising and the patients will recovery quickly and back to
daily work in short time.
What happens after treatment?
Soon after your treatment you will be allowed home. It is advisable
not to drive but to take public transport, walk or have a friend
drive you. You will have to wear the stockings for up to two weeks
and you will be given instructions about how to bathe. You should
be able to go back to work straight away and get on with most
You cannot swim or get your legs wet during the period in which you
have been advised to wear the stockings. Most patients experience a
tightening sensation along the length of the treated vein and some
get pain in that area around 5 days later but this is usually mild.
Normal anti-inflammatory drugs like Ibuprofen are normally
sufficient to relieve it.
Clinical Therapy Advantages:
- Minimally invasive, less bleeding
- Curative effect: the operation under direct vision, the main branch
can closed of tortuous vein clumps.
- Surgical operation is simple, treatment time is greatly shortened,
reduce patient's much pain
- Patients with mild disease can be treatment in the outpatient
- Postoperative secondary infection, less pain, quick recovery
- Beautiful appearance, almost no scar after surgery
|Laser Type||GaAlAs Diode Laser|
|Wavelength||810nm/ 980nm/ 1210nm/ 1470nm|
|Maximum Power||15W/ 30W/ 60W|
|Operation Mode||CW, Single Or Repeat Pulse|
|Pulse Duration||10us- 3s|
|Repetition Rate||0.2Hz- 50KHz|
|Pilot Beam||Red Diode Laser Of 650nm, Power<5mW|
|Control Mode||True Color Touch Screen|
|Transmission System||Medical Fibers With SMA905 Connector|