眼科治疗用YJ1-YAG激光器设计与光学系统详解
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本文主要探讨了眼科专用治疗激光器YJ1-YAG的设计，特别是在激光和光学系统的详细设计原理与方法上。文章的标题"Design of the Laser and Optical System of YJ1-YAG: The Therapeutic Laser Instrument for Ophthalmology"明确了研究焦点，针对的是Nd:YAG激光在眼科手术中的广泛应用，如角膜切开术、人工晶状体植入手术、玻璃体切割等。
首先，作者介绍了YJ1-YAG激光治疗仪的基本构成，强调了它在眼科领域的重要地位，其显著的效果和便捷的操作方式使其在临床实践中得到了广泛的认可。Nd:YAG激光因其高能量密度和稳定的输出特性，特别适合于需要精确切割和凝固的手术操作。
接下来，论文深入探讨了该激光仪器的核心部分——激光和光学系统。设计原则主要包括选择合适的激光源（Nd:YAG固体激光器），考虑到光束的质量和稳定性，确保输出的激光波长为1064纳米，这对于穿透力强、热效应低的手术至关重要。设计方法可能涉及激光器的冷却系统、聚焦镜的设计以及光学传输路径的优化，以减少光束在传输过程中的衰减和畸变。
此外，文章还可能分析了光学系统的特殊特征，例如采用反射或折射透镜来形成所需的治疗模式，如点状、线状或面状，以及如何通过调整聚焦距离和光斑大小来适应不同的眼部手术需求。为了保证安全性和精确性，光学系统可能会包括光束防护措施和精确的光束准直系统。
论文的关键词"YAG激光"、"二极管激光器"和"光学系统"进一步突出了研究的重点，表明了作者对这种激光器在眼科手术中的核心组件的深入研究。总体而言，这篇论文不仅提供了YJ1-YAG治疗仪的设计背景和技术细节，也反映了激光技术在眼科手术领域的创新和发展趋势。对于眼科医疗设备工程师、临床医生和激光技术爱好者来说，这篇文章是一份宝贵的参考资料。
Vol.
B10,
Supplement
CHINESE
JOURNAL
OF
LASERS
April,
2001
The Design
of
the Laser and Optical System
of
YJl-
Y
AG
the Therapeutic Laser Instrument for Ophthalmology
HUANG
Xiaoyan
LIU
Xiaohu
( Tec
hn
ical
Cen
ter ui
SU::hOli
Med
ic
al
In
stru
ment,
SU?JIDU
21
5
005,
China)
Abstract:
In this pap
er
,
it
briefly
introduc
es
the
comp
ositions
of
YJ
1-
Y
AG
the therapeutic laser
ins
trum
ent for ophthalmology. It describes in deta
il
the design principle
and
method
of
the laser and optical
ystem
of
this ins
trum
ent
and
also
analyz
es the
charact
eristic f
eatures
of
it.
Key
words:
Y AG lase
r;
diode
laser;
optical
system
1
Foreword
The
development
of
the laser
instrument
improves
the
progress
of
the
laser
surgery.
From
the first
time on the
ruby
laser using for the
ophthalmology,
there
are
more
than
ten kinds
of
laser applied on
the
ophthalmology
in succession.
Among
them,
the
Nd
: Y
AG
therapeutic
laser
instrument
for
ophthalmology
has
already
widely used in the clinic.
It
has
the
advantages
of
notable
effects
and
conv
e
nient
operations
in
the
treatments
of
synechiotomy
operation,
membranous
cataract,
incision
of
vitreous
membrane
and
cord,
incision
of
lens
capsulotomy
and
goniotomy.
It
avoids
the pains
and
complications
from
the
surgery
[l].
However,
the
homemade
instruments
still
have
some
problems.
For
ex
ample,
the low focal precision
and
energy
density
make
the
number
of
invalid
percussion increase
and
easy
to
damage
the
intraocular
lens.
So,
it's
urgent
to
improve
these problems[2].
Aiming
at
these
problem
s,
improving
the coupling
efficiency
between
the
laser
and
slit-lamp
microscope,
decreasing the
loss
of
laser e
ne
rgy
and
choosing the best
ratio
of
beam
expanding
will be the
demands
of
the novel
therapeutic
laser
instrument.
Through
these
measures,
the
small
light spot size
and
high
energy
density
of
the
therapeutic
laser will be possible.
At
the
same
time,
it
must
be
improved
on
the
focal precision of
aiming
beam
and
the precision
of
coaxial
and
confocul
optical system
between
the
therapeutic
beam
and
obs
ervation
beam. Applied in
the
ophthalmology
laser,
the high
techniques,
such
as
the
diode
laser,
computer
and
so
on,
not
only
improve
the
performances
of
the
instruments,
but
also give the
c
onveniece
to the doctors[3].
So,
we do
our
best to
catch
up
with
the
development
of
techniques. In the
t
herapeutic
laser
syst
e
m,
we
use
the
stratified
attenuation
regulat
i
on
device,
pulse
counting
and
energy
display device. In the
part
of
control,
we
use the embedded
IS-bit
microcomputer
MCS-8098
which
can
control
the signals in a
unified
mode
.
So,
the
therapeut
ic
instruments
have
a
great
improvement
in
the aspect
of
intelligence.
The
novel
YJl
- Y
AG
therapeut
ic laser
instrument
for
ophthalmology
has
done
many
discoveries
and
developments.
It
also gained the
satisfying
achievements.
Now,
we
will
introduce
it
as below.
2
The
three
light spots aiming system
of
the diode laser
The
wavelength
of
the
Nd:
Y
AG
laser
which
is
an
invisible light is
1060
nm.
Traditionally,
the
He
-Ne laser
(633
nm)
is used as
the
two
light spots
aiming
system.
When
the
He-Ne
laser focuses on
the focal
plane,
it
converges
on
one
spot.
Otherwise,
it
appears
two
spots.
Now,
we
use the diode
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