Instrument work surface: There is a drawer and a power switch under the instrument work surface; the input power is 220V, 50Hz. Turn on the power switch, the slit lamp and the fixation lamp are lit, adjust the slit illumination knob, and the brightness will increase from the “low†position to the “medium†position; the brightness will be further increased from the “medium†position to the “high†position. . A lower voltage can be selected for general inspection; a higher voltage can be used for fine optical sectioning, and the instrument can be operated continuously for a long time even in the "high" position.
Motion base device: The lifting and horizontal movement of the instrument during use are controlled by the joystick, and the rotating handle can make the slit lamp and the microscope freely lift and fall (note: the lifting height must not exceed 300mm limit. Do not force the rotation to exceed the limit. Instrument); with the handle control, the slit lamp and the microscope can be moved horizontally in any direction within the guide rail; the fixing bolt on the base can fix the base, and the bolt is normally placed.
Head frame and fixation lamp device: There is an adjustment knob on the lower left side of the chin rest, which can be used to adjust the position of the patient's head (there is a black scribe mark on the right struts of the head frame), so that the patient to be examined can check the eye and the microscope. Contour. The head-mounted fixation lamp is used for the inspection of the inspector. There is a front mirror socket under the 颚,, [filtered words] front mirror can be gently slid in the left and right direction.
Microscope device:
Focusing of the microscope: The microscope is adjusted according to the normal eye. If the doctor is an abnormal eye, wear appropriate glasses or adjust the eyesight of the eyepiece. At this time, insert the focusing rod, close the left eye, and turn the right-looking ring. Until the clearest image, then use the same method to correct the focus of the left eyepiece. After use, you should repeat the O position for others to use.
Magnification of the microscope: The pupillary distance of the binocular stereo microscope can be adjusted. The magnification can be changed by using eyepieces of different magnifications (10X or 16X) and shifting the handle to change the objective magnification (1X or 1.6X).
Eyepiece magnification 10X10X16X16X
Objective magnification 1X1.6X1X1.6X
Magnification 10X16X16X25.6X
(3) There are two hanging nails in front of the microscope stand. When the gas shield is needed, the gas shield can be hung.
Slit lamp device:
Filter selection: The filter can be selected by dialing the filter handle: the mark corresponding to the position of the toggle filter handle (Fig. 9) is expressed as: (1) through hole, (2) heat insulation, (3) ) dimming, (4) no red, (5) cobalt blue.
Slit lamp width and height adjustment: Rotate the slit lamp width knob to adjust the crack width freely in the range of 0~8 mm. Move the light bar to move the handwheel to adjust the height of the crack freely within the range of 0~8 mm. . There are five different sizes of light bars and one continuous high-definition light bar on the 9-ray bar.
Adjustment of the crack rotation: Rotate the handle by turning the crack, and turn it to the left or right direction, so that the crack can be rotated from the straight position to the horizontal position. When the transverse crack is used as the optical cut surface, the position of the slit lamp needs to be placed in the middle position. The angle between the slit lamp arm and the microscope is 0°.
When the transverse crack is used for the upper oblique optical sectioning; the front deduction is pushed downward, and the lower end of the slit lamp is pulled, so that the slit lamp is tilted forward, and the tilt angle ranges from 0 to 23°, at this time, reflected by the mirror The cracked light is tilted upwards.
How to move the straight slit light to the left and right sides: Loosen the centering knob, you can turn the slit lamp by hand to move the straight crack light to the left or to the sides of each 15°. When tightening the center knob The slit lamp automatically returns to the positive position.
The various adjustment and rotation actions of the slit lamp can be mixed and applied according to the needs of clinical use, which has certain value for the diagnosis of special parts.
Slit lamp arm and microscope adjustment: The slit lamp arm and the microscope arm are mounted on the concentric, and the two can be rotated separately or simultaneously. When the single screw is loosened, the slit lamp arm and the microscope arm can be rotated freely. When the knob is tightened, the two arms can be linked at the same time. There is a fixed knob on the slit lamp arm. When the knob is loosened, the microscope arm can be rotated separately.
The angle between the slit lamp arm and the microscope arm:
Both the slit lamp arm and the microscope arm can be rotated in the range of 90° on both sides. There is a positioning post on the microscope arm, and there are three card positions on the slit lamp arm. When the slit lamp arm coincides with the microscope arm, the angle is 0°, and the positioning pin is snapped into the middle card position. When the slit lamp arm is 10° on the (or right) side of the microscope arm, the positioning post is stuck to the left (or right). ) Card position.
Slit lamp bulb replacement:
When the lamp needs to be replaced, the slit lamp power should be turned off to allow the lamp to cool down.
Hold the lamp cover and unscrew the lamp cover in the direction shown. Use a screwdriver to loosen the red dot screw and remove the lamp cap. Then use a screwdriver to loosen the screws on both sides and take out the old lamp.
After replacing the new light bulb, the original position of the lamp head [filtered words]; turn on the power, open the crack to the maximum aperture, [filtered words] focus stick (focus surface is aligned with the doctor's five sides); then move the lamp head back and forth, When the focus surface sees a uniform illumination, the boundary is clear, and the spot is round and bright, the lamp position has been adjusted; at this time, the red dot screw is tightened.
Finally, align the red dot on the lamp cover with the red dot on the lamp holder. After attaching the lamp cover, rotate it in the direction shown to fix the lamp cover.
Replace the mirror:
When the coating on the mirror is damaged, the mirror should be replaced.
When replacing the mirror, hold the neck of the mirror with your thumb and forefinger, and then pull the mirror out.
Note: Do not touch your fingers with the mirror during replacement.
Front concave lens:
The front concave lens is a 58.6D plano-concave lens. When used, the guide plate is [filtered] in the shaft hole, and the bottom plate is turned out in the direction shown in the figure. The pulley can be gently slid in the left and right direction under the squat bottom plate; Place the mirror [filtered words] in the socket hole, the lower end of the mirror rod [filtered words] in the guide groove, then hold the handle to the eye; operate the motion base control handle, the front concave lens will be linked with the motion base. The fundus can be observed within 30° of the central axis of the eye; the anesthesia is not required when the fundus is viewed with the front concave lens, which is convenient for normal use.
Maintenance and maintenance precautions
The slit lamp microscope is a kind of precision optical instrument. Under normal circumstances, the instrument should be placed in a well-ventilated, dry environment, and the relative humidity does not talk more than 50% indoors. Otherwise, the metal parts of the instrument and the surface of the optical parts are bad. influences.
The optical lens of the slit lamp microscope is the key to ensure the normal use of the instrument. Always keep it clean. When the lens is contaminated with dust, use the dust pen in the random spare part to gently remove the dust. If the lens is oily, use the degreased cotton 蘸60. Mix a mixture of % alcohol and 40% ether and gently wipe to remove oil.
The surface of the optical lens should be avoided as much as possible with the hands and other parts of the human body, because the sweat and grease on the human body will directly affect the quality of the surface of the optical parts; if it is accidentally touched by the operation, it should be wiped clean in time to ensure that the lens can be used for a long time.
The upper part of the concentrating mirror of the instrument is easy to accumulate dust. The lamp cover and the lamp holder can be removed, and the dust is gently removed with a dust pen to ensure the quality of the light source during normal operation of the instrument.
The horizontal axis on the moving base of the instrument is exposed to the outside part. It should be wiped clean frequently and evenly coated with a very thin layer of lubricating oil to keep it smooth; otherwise the horizontal axis will easily rust or contaminate the scale and directly affect the instrument. Flexible operation.
When the instrument's focusing rod is not in use, the guide should be covered to prevent dust and patient's tears from entering the gap of the lifting shaft, causing rust or contamination in the lifting shaft and bushing, affecting the flexible lifting of the slit lamp arm and the microscope arm. Or turn.
When moving the instrument, the moving base, the slit lamp arm and the fastening bolts on the microscope arm should be tightened to prevent the instrument from slipping out of the guide rail or causing the instrument to lose its center of gravity when the instrument is being transported, and the instrument is broken. The three bolts should be loosened during normal use.
After the instrument is used, the dustproof cover of the instrument should be placed in time to prevent the instrument from being contaminated with dust and dirt.
Instruments and spare optical parts (or accessories) should be stored in a drying cylinder containing desiccant.
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