The Application Of Medical Holmium Laser Fiber
Keywords:
Medical Holmium Laser Fiber,
Medfibers, Time:07-07-2021
The working transmitter of the holmium
laser is Holmium Yttrium-Aluminum-Garnet (Ho: YAG), which is a pulse
generated by using a krypton scintillation light source to activate the rare element holmium
embedded in the yttrium-aluminum garnet crystal A type of near-infrared laser with a
wavelength of 2140nm, which is just in the absorption range of water. The pulse time of the
laser is 0.25ms, which is much shorter than the thermal conduction time (1ms) of the tissue,
so the thermal damage to the surrounding tissue is small, the tissue penetration depth is
less than 0.4mm, and the remaining thermal damage depth can reach 0.5～1.0mm, and the tissue
is solidified. And necrosis is limited to 3 to 4mm.
The holmium laser has a high absorption coefficient in water. Because the
tissue is mainly composed of water, the main energy is concentrated on the surface, so that
the laser has a good cutting ability and tissue resection ability. During the tissue cutting
process, it is for blood vessels with a diameter of 1mm.,Hemostasis can also be performed,
which provides a promising new method for prostatic hyperplasia, urethral stricture and
urinary tract tumor resection that require high-precision and high-energy instant
resection.
Holmium
laser also has a very good lithotripsy function. Through a kind of
"drilling effect", the vaporized stones are discharged out of the body, which can
effectively smash various components of urinary calculi, and can cause the water contained
on the surface and inside of the stones to be removed from the body. The instantaneous
energy absorption is highly vaporized and expanded, causing countless continuous
micro-blasts, and these micro-blasts produce secondary shock waves, so the urinary tract
stones in the patient's body immediately disintegrate from the surface and the inner
layer under the double micro-blasts. . Another feature of holmium laser is that its light
wave can be transmitted through silica silica fiber, which is flexible.
The application of holmium laser has brought the treatment of urinary
calculi to a new level. The holmium laser has a wavelength of 2.1μm and is a pulsed
laser. It is the latest of many surgical lasers. The energy it generates can vaporize the
water between the end of the fiber and the stone to form tiny cavitations and transfer the
energy to Stones, crush the stones into powder. Water absorbs a lot of energy and reduces
damage to surrounding tissues. At the same time, the penetration depth of holmium laser to
human tissue is very shallow, only 0.38mm. Therefore, the damage to surrounding tissues can
be minimized during lithotripsy, and the safety is extremely high.
Wuhan Medfibers is a professional manufacturer of holmium
laser fiber, and the products are supplied all over the
world.If you have demand,feel free to contact with us.
