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Welch Allyn
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88460
User Manual
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Welch Allyn 88460 User Manual

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Page 1
Optical Colposcope with
Tilt Stand
REF 88200
Optical Colposcope with Swing
Arm Roller Stand
REF 88460
Operating Instruction Manual
Page 2
Page 3
Table of Contents
Swing Arm Universal Mount Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Height Adjustment of the Swing Arm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Colposcope Assembly And Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Optical Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Adjustment of Ocular Eye Pieces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Reversing The Fine Focus Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Resetting The Height Adjustment Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Changing Position Of Transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Colposcope Care And Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Checking the Lighting System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mounting the Video Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Attaching the Video Camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Adjusting the Video Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Focusing and Adjusting the Multi-Mag Video Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Checking the Link Setting of the Video Camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
One Year Limited Warranty On New Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
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Warnings and Cautions
WARNING: DO NOT use a converter adapter that will convert the three-prong AC plug to a two-prong line plug. The power supply in the colposcope will not be properly grounded and electric shock might result.
WARNING: The lamp operates at a high temperature. DO NOT attempt to remove the lamp before allowing it to cool. Allow at least five minutes for the lamp to cool before replacing.Replace with Welch Allyn lamp #08100 only.
General Precautions
• For safety, the colposcope should only be coupled to a grounded 110-120 VAC hospital-grade outlet.
• The colposcope should not be operated in the pres­ence of flammable or explosive gases or chemicals, or installed in areas where these materials are com­monly used.
• To avoid overheating, the colposcope should not be positioned closer than 6” to any wall.
• Keep all liquids away from electrical equipment to avoid the possibility of shock and instrument dam­age.
CAUTION: Federal law restricts this device to sale by on the or order of a physi­cian or other appropriately licensed medi­cal professional.
CAUTION: The device is for OB/GYN pur­poses only.
Symbols
Caution: Consult user's manual for additional information.
Warning : High temperatures
Risk of fire. Replace fuses as marked.
Warning : High-intensity light
Warning : Power supply of unit is
energized whenever power cord is plugged in.
Dangerous Voltage
• Occasionally inspect the power cord for signs of cuts, abrasions or dents.
• The colposcope should never be stored or operated in areas where it could get wet or could be exposed to any environmental conditions like extreme tem­perature or humidity, direct sunlight, dust, etc.
• The lamp is extremely bright. DO NOT stare directly into illumination lens when the lamp is lit.
• All service to the video colposcope must be per­formed by Welch Allyn or by an authorized repair cen­ter.
• Colposcope user should adhere to the operating con­ditions found in this manual. Otherwise, instrument damage may occur and/or operator/patient safety may be compromised.
• There are no user serviceable parts (other than the lamp and fuses) in this unit or in its accessories. Any attempt to disassemble and/or repair this unit will result in voiding of the warranty.
• Colposcope device to patient distance no closer than 19 cm. Closer distances have higher irradiance levels and may cause thermal skin injury. Short intermittent exposures in and out of the illumination path by the user at closer distances is typical of cervical exami­nations. Prolonged exposures are not recom­mended.
UL Recognized Component
UL Listed
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Tilt Stand Assembly
Lay the Tilt Stand so that as the colposcope head is tilted forward and remains stationary without continuing in a forward motion.
Align the ball joint to base plate with the four bolts and washers.
Use the socket wrench provided to tighten the four outer bolts securely.
The narrow side of the base plate and transformer must face the operator when in use. The operator should place his/her feet onto the base plate when using the colpo­scope.
The adjustment knob (A) is used for the gross height adjustment of the colposcope.
Use the red bolt centered on the bottom of the base plate for adjusting the tilt friction of the ball joint. Tighten the red bolt to the desired tilt friction so that the colpo­scope head remains stationary or tilts with moderate pressure. (Clockwise increases tilt friction, counter-clock­wise decreases tilt friction).
NOTE: Do not overtighten the red bolt.
NOTE: The tilting friction of the ball joint may loosen
with use. Retighten as necessary.
A
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Swing Arm Universal Mount Assembly
A rigid connection is required when mounting the swing stand to an examination table/chair. For maximum steadi­ness, mount the clamps as high up and as low down as possible on the vertical support column.
One ball-clamp consists of two halves on which one side is lined with sand paper. This side surrounds the leg of the examination chair or clamps onto the table mount provided. The other side of the ball clamp attaches to the black ball.
Height Adjustment of the Swing Arm
Lift the Swing Arm up and pull the pin (A) from the height fixing ring. Place the ring to the desired height until it engages the holes (B) of the tubular support. Then care­fully set the Swing Arm down in place.
A
B
If the swing stand is mounted to the left side of the examination table/chair, reverse the light transformer. (See “Changing Position Of Transformer” on page 8)
NOTE: Do not try to protect the chair legs with tape;
you will not achieve a rigid connection.
Tighten the bolts of the ball clamps slightly to adjust the tubular support. It is important that the tubular support is absolutely vertical! Use the bubble level on the top of the tubular support to straighten.
Now tighten the clamp bolts to get a rigid connection to the examination table/chair. Finally, fix the friction screw in the enameled clamp to avoid torsion. The tension screws regulate the tension in the swing joints and are adjustable by using a coin.
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Roller Stand Assembly
Colposcope Assembly
Use the roller stand with Swing Arm mount for additional mobility of the colposcope.
Remove the swim arm post (A) from the shipping con­tainer. Place the adapter (B) (large end first) on the post and tighten the set screws with the wrench provided. Place the swing arm post (A) and adapter (B) into the roller base (C).
Place the two washers on the cap screw . Carefully tilt the post assembly and base. Secure the cap screw and washers in the bottom of the base assembly (C) and tighten with the wrench provided.
And Operation
After assembly of the appropriate stand, insert the colpo­scope head extension tube into the stand. Tighten the adjustment knob to adjust the head to a convenient height for colposcopy. Verify that the fine height adjust­ment handle (A) is in the middle position. On the Swing Arm mount it is possible to change the height of the swing arm (see “Height Adjustment of the Swing Arm” on page 3).
A
Use the light transformer with AC-50-60 Hz only.
B
A
C
Before connecting the unit with the power cord to the wall outlet, check that the voltage in the wall outlet is comparable to that written on the name plate of the col­poscope. Colposcopes in the United States are preset at 125 volts to allow for fluctuations in a 110 volt outlet.
There are two fuses (A) located in the power cord input socket on the transformer. These fuses protect against excessive fluctuations in voltage. Replacement fuses are included with the replacement bulb. Type and rating of fuse are written on the name plate and fuse holder.
A
It is possible to plug the light cable from the colposcope head into the corresponding socket of the transformer.
Cap Screw
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The colposcope is now ready to use. Turn on the obser­vation light (A) and use the rheostat (B) to regulate light intensity.
using the fine focus adjustment handle (B). Use this handle to tilt the instrument up and down to correspond with the angle of vision through the speculum.
A
B
Optical Adjustments
1. Mark a small “X” on a piece of paper. Place the paper in the patient location area.
2. Move the colposcope to roughly 12” from the paper.
3. Stand or sit behind the colposcope as if performing an examination. If the Tilt Stand is used, firmly place the operator’s feet on the base of the stand. (See page 2).
4. Set the “0” on the ocular eye pieces to match the dots on the corresponding housing (A).
NOTE: It is better to use the colposcope without
glasses, making the necessary allowances with the optics of the instrument. However, in case of a heavy astigmatism, special eye­pieces can be ordered, see “Special Eye­pieces” on page 5.
A
C
B
Adjustment of Ocular Eye Pieces
This model has a focusing grid located in the left eye piece housing with one internal double circle and one external single circle for measuring. Turn the left eye­piece until both circles of the internal double circle are focused. Using the fine focusing handle, focus on an object. Now bring the right eyepiece into focus. Located on the outside of the housing is a chart that shows the diameters of the objects within the circles at the differ­ent magnifications.
Special Eyepieces
5. Adjust the spacing of the eye pieces (C) by gently moving the ocular housings (A) back and forth until the desired interpupillary distance is achieved.
6. Turn the instrument on and look through the eye pieces (C) to make a gross focusing adjustment by moving the entire colposcope forward and backward to locate the prepared “X” in the 15mm diameter field of light. Use the rheostat knob to adjust the light intensity.
7. Looking only through the left eye piece, rotate the fine focusing handle (B) until the image of the “X” is sharply defined.
8. Looking only through the right eye piece, adjust by turning the right eye piece ring until the “X” is sharply defined.
9. Look through both eye pieces (C) to check that the fields converge into a single field. Correct slight inter­pupillary distance by moving the ocular housings (A). Once the instrument is focused, no additional optical adjustments are needed.
NOTE: When using the instruments for examina-
tions, all further adjustments are made by
Spectacle users should order flat eye pieces for the ocu­lars. To replace the ocular eye pieces, tilt the colposcope forward. With a jewelers screwdriver, loosen the set screw located on the knurled eye piece ocular ring and unscrew the eye rest. Do not rotate the ocular housings. Screw the flat eyepiece securely in place and tighten the set screw.
Green Filters
Engage the green filter to enhance the view of blood ves­sels by turning the filter knob one quarter turn. (D)
D
A
C
B
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Adjustment Of Tilt
1. Loosen the tilt adjust knob by rotating it counter­clockwise.(F)
2. Use the fine focus handle to control the angle of tilt. (B)
3. Use the height adjustment handle to raise or lower the instrument. Extension travel is 4”. (E)
4. Secure the tilt adjustment knob when adjustment is complete. (F)
D
A
F
C
B
E
4. Remove the screws below the mounting plate next to the Fine Focus Handle.
5. Remove the screws which hold the focusing shaft and the tension knob. Pull the focusing shaft approxi­mately 5 cm (2 inches).
CAUTION: DO NOT REMOVE the grease from other parts of height adjustments or replace it with any other lubricants.
Reversing The Fine Focus Handle
The fine focusing adjustment handle is preset for left­hand use and the height adjustment handle for right-hand use. To change the fine focusing adjustment for right­hand use:
1. Unplug the transformer from the outlet.
2. Unplug the lamp from the optical head.
3. Remove the two screws on the under side of the mounting plate and remove the optical head from the mounting plate (wiggle slightly).
5 cm
6. Pull the focusing shaft (A) from adjustment part. Remove the tilt axle (B) by unscrewing the tension knob.
B
A
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7. Remove the adjustment part from the fork and re­insert it after reversing so that the shaft is on the right.
8. Carefully reset the focusing shaft and axle by follow­ing the steps in the reverse order.
Resetting The Height Adjustment Handle
After a period of use, the spring tension on the height adjustment may loosen so that the colposcope head falls by itself. In this case, readjust as follows:
1. With the colposcope head extended out of the inser­tion tube, lift the cap (A).
A
2. Under the cap are 2 leaf springs (B) fixed with 4 screws. Tighten these screws evenly so that the small brass wheel (C) fits on the driving shaft (D) and does not slide.
B
C
D
3. Verify that the wheel and notch in the driving shaft are free of dirt and grease. Clean these parts with alcohol.
CAUTION: DO NOT REMOVE the grease from other parts of height adjustments or replace it with any other lubricants.
Slide the cap (A) until it snaps back into place.
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Changing Position Of Transformer
Mount the transformer on the Swing Arm so that the controls are facing the operator.
Disconnect the power cable and colposcope light cord. Unscrew both screws on the reverse side of the trans­former and take it out of the frame for transposing.
Pull out the lamp housing containing the halogen bulb. Unscrew both screws on the front and take off the front housing. Depress the two white leaf springs, remove the projector and reverse.
Colposcope Care And Maintenance
When not in use, cover the colposcope head with the plastic dust cover provided. Clean the lenses with silicon­treated tissue paper only. If Lugol’s or any other solution is spilled on the lenses, remove IMMEDIATELY using a lens cleaning solution and lens tissue.
2. After the lamp has cooled, remove the lamp from the lamp socket.
The lamp operates at a high temperature. Do not attempt to remove the lamp before allowing it to cool. Allow at least five minutes for the lamp to cool before replacing. Replace with Welch Allyn lamp #08100 only.
3. Cut open the lamp package at the contact side.
4. Push the lamp firmly into the socket until you feel resistance.
Lugol’s solution damages the enamel finish and is very difficult to remove. Use alcohol or a weak bleach solution to remove Lugol’s from the enamel.
Lamp Replacement
DO NOT touch the colposcope lamp. This shortens the life span of the lamp.
1. Remove the light plug from the transformer light source.
5. Push the lamp socket back into place.
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Checking the Lighting System
Turn on the colposcope viewing light. Place a thin piece of white paper in front of the viewing lens. Verify that a complete white circle is seen.
If a shadow is seen high or low in the focus area, adjust the focus screw as shown.
If a perfect image is not seen, it is necessary to adjust the focus screw for the lamp. To do this, remove the light plug from the transformer light source.
The lamp operates at a high temperature. Do not attempt to remove the lamp before allowing it to cool. Allow at least five minutes for the lamp to cool before replacing. Replace with Welch Allyn lamp #08100 only.
Locate the focus screw on the lamp socket.
Turn screw clockwise to correct
Turn screw counter­clockwise to correct
Video Adapter
Before mounting, check that the video adapter fits to your colposcope.
The video adapter is factory-adjusted when delivered with the colposcope.
Mounting the Video Adapter
Standard Colposcope with Multi-Mag Video Adapter
Remove the three plastic screws (A) from the Colpo­scope head with the allen wrench.
A
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Attach the mounting plate (B) onto the front surface of the Standard Colposcope with the 3 M4 Allen screws provided.
B
The video adapter is attached to the mounting plate using the knurled screw (C). Verify the pilot pins (D) are in the correct position while tightening.
and screw it firmly into the lens socket of the video cam­era.
E
F
C
D
Attaching the Video Camera
Loosen the top clamping screw (E), take the C-mount barrel (F) out of the video adapter, remove the lens cover,
To prevent dust from getting into the imager, it is sug­gested that the camera head is facing down during this procedure. Re-insert the C-mount barrel, along with the camera, into the video adapter until it goes no further. Switch the video on and turn the camera with the C­mount until the image on the monitor is in the upright position. Tighten the clamping screw (E).
E
Adjusting the Video Device
Adjust the video adapter to ensure that the center of the colposcopic image is also the center of the image on the video. Use a simple object with a flat surface and good contrast (e.g. a medicine box) to aid in the adjustment.
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Horizontal Adjustment
Screw (G) controls the horizontal adjustment. Turning the screw causes the video adapter to move to the left or the right.
G
Vertical Adjustment
Slightly loosen screw (H) until the lens barrel (J) is easily turned by inserting the allen wrench through the hole in the lens barrel. Rock the wrench up or down to adjust the vertical setting, then tighten screw (H) again.
Set the video adapter at its highest magnification (this is very important for greater depth perception at small magnifications). Loosen screw (K) while keeping the knurled screw (E) tight. Gently slide screw (K) with the round plate back and forth until the object clearly seen on the colposcope also appears clearly focused on the mon­itor.
In addition to the above method, a clear focus is obtained on the screen by loosening the knurled screw (E) and moving the camera assembly in or out to obtain a clear focus on the monitor. Once desired focus is achieved, re-tighten the knurled screw (E).
K
J
H
Focusing and Adjusting the Multi­Mag Video Adapter
Often the image sensor of the video camera is not exactly centered on the C-mount connection, with the result that, when changing the magnification of the video adapter, the center of the image may drift a little.
The physician must decide for himself/herself which magnification he/she will use when making the fine adjustment of the centers of both the colposcope’s image and the video image.
Adjust the colposcope’s fine focus handle to obtain the greatest clarity on the monitor and compare it with the image seen through the colposcope. This entire proce­dure should be repeated several times until both images are clear, at which point the clamping screw (K) should be tightened.
Checking the Link Setting of the Video Camera
Multi-Magnification Video Adapters Only
Perform this procedure only if after following the focus­ing procedure the image is not in focus at all three mag­nifications of the video adapter.
It is necessary for an exact link setting of the connection between the C-mount and the Video camera in order to obtain a focused image on both the monitor and the col­poscope at all 3 magnifications of the video adapter. On most video cameras the link setting is adjustable.
Video Adapter with Multiple Magnification
Prefocus the colpsocope by setting the magnification changer at the middle magnification. Verify that the cir­cles of the left eyepiece are focused clearly.
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After loosening the clamping screw (H), unscrew the slotted screw (L) found on the back surface until the lens barrel (J) is removed from the video adapter.
H
Replacement Parts
Part REF Quantity
Lamp 08100 1
Fuse 88427 2
Warranty
J
L
Focus the video device on an object at infinity (at least 100 meters). The image on the monitor is focused by adjusting the link setting, knurled screw (E), of the con­nection between the C-mount and the video camera. After adjusting the link setting of the video camera, replace the lens barrel by reversing the procedure described above. Recheck the focusing and adjustment of the video device according to the procedure laid out in the sections adjusting and focusing the video adapter.
If the camera does not allow for the link setting adjust­ment, then the C-mount is already factory adjusted. If this is not the case, then the video device is only adjust­able to fit the camera by Welch Allyn. FOR THIS ADJUSTMENT THE COLPOSCOPE IS NOT REQUIRED.
One Year Limited Warranty On New Instruments
Instrumentation purchased new from Welch Allyn, Inc. (Welch Allyn) is warranted to be free from original defects in the material and workmanship under normal use and service for a period of one year from the date of first shipment from Welch Allyn. This warranty shall be fulfilled by Welch Allyn or its authorized representative repairing or replacing at Welch Allyn’s discretion, any such defect, free of charge for parts and labor.
Welch Allyn should be notified via telephone of any defective product and the item should be immediately returned, securely packaged and postage prepaid to Welch Allyn. Loss or damage in shipment shall be at pur­chaser’s risk.
Welch Allyn will not be responsible for loss associated with the use of any Welch Allyn product that (1) has had the serial number defaced, (2) has been repaired by any­one other than an authorized Welch Allyn Service Repre­sentative, (3) has been altered, or (4) has been used in a manner other than in accordance with instructions.
THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, OR OTHER WARRANTY OF QUALITY, WHETHER EXPRESSED OR IMPLIED. WELCH ALLYN WILL NOT BE LIABLE FOR ANY INCI­DENTAL OR CONSEQUENTIAL DAMAGES.
If you have questions regarding any Welch Allyn prod­ucts, please call Customer Service at (800) 535-6663, 315-685-4100, or FAX:315-685-4653
Service
12
Customers with instruments requiring service should contact the Welch Allyn Technical Service Department at (800) 535-6663, 315-685-4100, or FAX:315-685-4653.
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4341 State Street Road
Skaneateles Falls, NY 13153, U.S.A.
Tel.: 1-315-685-4560 or 1-800-535-6663
Fax: 1-315-685-3361
Printed in the USA 882024 Rev. C
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