3M Littmann 4000 User manual

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3M™ Littmann® Electronic
Stethoscope Model 4000
Congratulations on the purchase of your new Littmann
Electronic Stethoscope Model 4000, the next generation
electronic stethoscope that offers the very latest in advanced
auscultation technology.
This powerful, state-of-the-art electronic stethoscope provides
superior acoustics. With amplification up to 18 times greater
than the best conventional stethoscopes, the Model 4000 is
specially designed to pick up difficult-to-hear heart and other
body sounds. Three frequency modes are available for
optimal heart and lung auscultation: Bell, Diaphragm and
Extended Range.
The Littmann Electronic Stethoscope Model 4000 offers
recording, storage and playback capabilities on six different
soundtracks. Instant playback is available at normal and half
speed.
Additionally, the Model 4000 provides infrared data
transmission of recorded sounds to either another Model 4000
or an IBM-compatible PC, giving you the option of sharing or
storing the sounds.
Other features include digital signal processing over the entire
acoustic range, built-in display for easy viewing of the heart
rate, patient-friendly nonchill rim, and patented 3M™
Littmann® Snap Tight Soft-Sealing Eartips for excellent
acoustic seal and comfortable fit. Plus, the Model 4000
operates on just two AAA alkaline batteries.
Most of all, know that the Model 4000 carries the Littmann
brand name, the name known worldwide for unsurpassed
quality. As a trusted leader in auscultation technology, the
Littmann brand of stethoscopes is your assurance of acoustic
superiority, innovative design and exceptional performance.
The following symbols are applicable to this device:
• Attention, see instructions for use.
• Indicates Type B Equipment: The equipment
provides protection against electrical shock and
electrical current leakage.
• Avoid penetration of fluids into the eartip openings.
The remainder of stethoscope is protected against
splashing liquid.
• This product and package do not contain natural
rubber latex.
Each Littmann Electronic Stethoscope Model 4000 has a
serial number beginning with "SN P".
Indications
The Littmann Electronic Stethoscope Model 4000 is intended
for medical diagnostic purposes only. It can be used for the
amplification of heart, lung and other body sounds with
selective frequency filtering. The Model 4000 can also be
used for recording, playback and transmitting/receiving of
heart, lung, and other body sounds. This product is not
designed, sold, or intended for use except as indicated.
Caution
• Failure to follow directions, general use, and maintenance
recommendations could result in damage to the device or
possible injury to the user. Damage could cause
malfunction of the product, ranging from a slight decrease
in auditory response to complete failure of the product.
• Half speed playback is for reference and should not be the
only basis for diagnosis.
• It is the responsibility of the clinician to assure that all
recordings and data transmissions correspond to the
appropriate patient data.
• Transmissions of soundtracks to a computer are for storage
purposes only. Soundtracks should not be listened to from a
computer for diagnostic purposes.
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• The Littmann Electronic Stethoscope Model 4000 has
been tested to be resistant to both electromagnetic fields
(EMI) and electrostatic discharge (ESD). However, it may
be susceptible to very strong radio frequency signals.
When using the stethoscope, if sudden or unexpected
sounds are heard, the Model 4000 may be in close
proximity to a strong radio transmitter. If this should
occur, move away from the radio’s transmitting antenna.
• Use only AAA alkaline batteries.
• The Model 4000 will not function if the batteries are
depleted.
• Do not immerse the stethoscope in any liquid or subject it
to any sterilization processes. The entire Model 4000 can
be wiped clean with alcohol.
• At the end of this device’s useful life, dispose or recycle in
accordance with your local, state, and governmental
regulations.
• If you have any problems with the Model 4000, do not
attempt to repair it yourself. Refer to the Service and
Warranty section of this manual.
Instructions For Use
Battery
When used in a typical setting, the Littmann Electronic
Stethoscope Model 4000 will operate for about one month on
two AAA alkaline batteries. Using the recording options or
infrared data transfer will reduce the average battery life.
When the batteries are close to depletion, the LOW
BATTERY indictor, located on the display, will blink. When
this occurs, the batteries should be replaced within two hours
of continuous use.
When the batteries are no longer able to power the Model
4000 stethoscope, the stethoscope will automatically turn off.
All recorded sounds and settings are saved. The Model 4000
will not function if the batteries are depleted.
Insert batteries as shown
Electronic Controls
The chestpiece of the Littmann Electronic Stethoscope Model
4000 contains six buttons:
The battery compartment of the Model 4000 contains three
buttons and the infrared port:
2
Battery
Compartment
On / Off
Soundtrack Selector
Volume Decrease
Volume Increase
Record
Frequency Mode Selector
Receive
Infrared Port
Transmit
Play
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Electronic Control Quick Reference
(Refer to Operation section for complete instructions)
On/Off Press the ON/OFF button to turn the
stethoscope on.
Press the ON/OFF button for
approximately two seconds to turn the
stethoscope off.
Pressing the ON/OFF button cancels
the current action, for example, to
stop a playback, transmission, or
reception of a soundtrack.
Soundtrack There are six soundtracks
Selector available on the Model 4000. Press
the SOUNDTRACK SELECTOR
button once to display soundtrack one,
press again to advance to the next
sound track.
Volume Decrease Press the VOLUME DECREASE
button to decrease the sound level.
Volume Increase Press the VOLUME INCREASE
button to increase the sound level.
Record Press the RECORD button for one
second to record sound onto the
selected soundtrack. Press again to
stop recording.
Frequency Mode Press the FREQUENCY MODE
Selector SELECTOR button to select Bell,
Diaphragm or Extended Range.
Receive Press the RECEIVE button to receive a
soundtrack from another Model 4000 or
computer.
Transmit Press the TRANSMIT button to
transmit the displayed soundtrack to
another Model 4000 or computer.
Play Press the PLAY button to hear the
selected soundtrack. The display
panel will indicate that the playback
is at normal speed. Press and hold
the PLAY button for two seconds to
play back in half speed. The display
panel will indicate that the playback
is at half speed. To return to normal
speed, press the PLAY button again.
Stop playback by pressing the
ON/OFF button.
Display Panel
The above picture demonstrates the graphics that are used on
the Model 4000 display panel. As a functional test, when the
Model 4000 is turned on, all the graphic indicators as shown
above will be briefly displayed. After this brief test, the display
will then indicate the current listening mode and the volume
setting. The factory setting for listening mode is Bell mode and
a volume setting of level three.
If is shown on the display, refer to the Error Message
section.
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When the display It means:
panel shows:
Blinking means the two batteries are
almost depleted.
The sound volume has eight levels.
The bar shows the current sound level,
increasing from the left. The more
bars visible, the higher the sound
level. When one element is displayed,
the sound level is similar to a typical
acoustic stethoscope.
This is also used to indicate
soundtrack reception or transmission
progress during data transmission.
Bell mode.
Diaphragm mode.
Extended range mode. The extended
range amplifies sound from a broader
range of frequencies than the bell or
diaphragm mode.
Playing a recorded sound at normal
speed.
Playing a recorded sound at half
speed.
Recording a sound.
Transmitting a recording. The arrow
will blink until the infrared connection
is made. After connection is made, the
arrow will no longer blink.
Receiving a recording. The arrow will
blink until the infrared connection is
made. After connection is made, the
arrow will no longer blink.
The number displayed indicates the
soundtrack currently selected.
The symbol indicates that the
soundtrack is occupied by a previous
recording. If is not displayed, the
soundtrack is vacant. When the is
rotating, a sound transmission is in
progress.
is located below the number of
the soundtrack you have selected.
A number displayed is the heart rate.
If two dashed lines are displayed, refer
to the heart rate section.
If the display is blinking , the
heart rate is above bpm and
cannot be displayed.
Error Message. See Error Message
section of this manual
.
Operation
Power On Press the ON/OFF button on the
Littmann Electronic Stethoscope
Model 4000. The factory or
personalized setting will be in
operation.
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Automatic The Model 4000 automatically
Power Off turns off three minutes after the last
actuation of any button. Press the
ON/OFF button within 10 seconds of
automatic power off and the same
settings will be restored. If longer
than 10 seconds have transpired, the
Model 4000 will power up at your
personalized setting or factory setting.
Note, the stethoscope will not power
off automatically during a data
transmission.
Change Sound Press the VOLUME INCREASE
Volume Level or VOLUME DECREASE button.
The sound volume bar displays
the change.
Change Press the FREQUENCY MODE
Frequency SELECTOR button to select one
Mode of the frequency ranges
(Bell, Diaphragm or Extended).
The selection is indicated on the
display panel.
Personalized The Model 4000 is factory set in
Setup bell mode and sound level 3. To
personalize setup, select the desired
frequency mode and volume level, and
then press and hold the FREQUENCY
MODE SELECTOR button for two
seconds. The Model 4000 will now
function with these settings on startup.
Heart Rate The Model 4000 detects and displays
an acoustic-based heart rate. It takes
five seconds to compute the initial heart
rate and is updated every two seconds.
For heart rates below 30 bpm or before
the initial reading, the display shows
two dashes (--). Heart rates above 199
bpm will flash the number 199. Heart
5
rate is not displayed during recording
or playback.
The acoustic-based heart rate display
functions best when the Model 4000 is
placed near the apex of the patient's
heart. If the heart rate changes from
consistent to inconsistent or if there is
excessive ambient noise, patient
movement or lung sounds during
auscultation, the heart rate display
number will flash or display two
dashes (--). The flashing heart rate
will change to two dashes (--) after 10
seconds of inconsistent sounds or no
heart rate detection.
Select Soundtrack Select any one of the six soundtracks
by pressing the SOUNDTRACK
SELECTOR button one or more
times. The selected soundtrack is
displayed. A number shown by itself
indicates an empty track. A number
shown with the indicates a
recorded soundtrack. Recording on a
soundtrack that displays the will
erase the currently stored sound.
Press the ON/OFF button to return to
the heart rate display.
Recording Press and hold the RECORD button
for one second. The record symbol will
flash in the display. Press the record
button again to stop recording. Wait for
approximately two - three seconds
after an auscultation event before
pressing the RECORD button to stop
recording. Each soundtrack has a
recording duration of eight seconds.
Each recording must be at least two
seconds in duration.
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The recording process captures the full
frequency range and stores it on the
soundtrack. This allows the ability to
change the frequency mode from bell,
diaphragm or extended range during
playback. To ensure that clear
auscultation sounds are captured, do not
adjust volume or frequency mode
during recording.
Playback To play back a recording, select the
desired soundtrack and press the
PLAY button. When the entire
soundtrack has been played, there is a
one second delay before the
soundtrack will play again. To end
playback, press the ON/OFF button.
Half Speed Press and hold the PLAY button
Playback for two seconds. To stop the
continuous half speed and return to
normal playback, press the PLAY
button. To end playback, press the
ON/OFF button.
Erase Single Erase soundtracks by recording
Soundtracks new sounds `onto them. Erased
soundtracks cannot be recovered.
Erase All Sound Press and hold the
Tracks SOUNDTRACK SELECTOR
(use with caution) button for two seconds. This will
erase all soundtracks. Erased
soundtracks cannot be recovered.
1.Select the soundtrack to be
transmitted and the soundtrack to
receive the transmission.
2. Position the two IR ports within
two feet.
3. Press the RECEIVE button on the
receiving Model 4000 then press the
TRANSMIT button on the
transmitting Model 4000. The arrow
will blink until the infrared
connection is made.
4. Transmission is indicated on the
Model 4000 display by a rotating .
5. Progress of the transmission is
shown on the Model 4000 display
with the symbol. To
stop the transmission, press the
ON/OFF button on either stethoscope.
1. Select the soundtrack to be
transmitted.
2. Position the two IR ports within
two feet.
3. Press the Model 4000 TRANSMIT
button. The arrow will blink until the
infrared connection is made.
4. Transmission is indicated on the
Model 4000 display by a rotating .
The computer status bar will display
two red lights flashing towards one
another.
5. Progress of the transmission is
shown on the Model 4000 display
with the symbol.
6. WINDOWS 95/98 – Downloaded
soundtracks are stored in: C:\My
Received Files.
Sending a copy of
a soundtrack to a
computer using
Microsoft®
Windows®
95/98/20001with
an infrared (IR)
port
Data transmission
to another Littmann
Electronic
Stethoscope
Model 4000
1. Prompts may vary between versions of Windows and are the responsibility of the Microsoft.
References to Windows as it pertains to use of the Littmann Electronic Stethoscope Model 4000 are
for clarification only. Please consult your Microsoft users manual for specific instructions.
Microsoft® and Windows® are trademarks of Microsoft Corporation.
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WINDOWS 2000 – Downloaded
soundtracks are stored in:
C:\Documents and
Settings\username\Desktop and
appear on the desktop.
7. The soundtrack filename format is:
’Trk*.e4k’ (* is the soundtrack
number on the stethoscope)
Example: soundtrack 2 = ’Trk2.e4k’
If the default soundtrack filename
already exists, a new name, ’Copy of
Trk*.e4k’ or ’Copy # of Trk*.e4k’ is
given, example: soundtrack 2 = ’Copy
of Trk2.e4k’ (# is the number of
duplicates from the same soundtrack)
It is advisable to rename the
soundtrack files once they are
transmitted to avoid confusion. It is
not necessary to maintain the file
extension *.e4k.
If appears in the display of the
stethoscope, refer to the Error
Messages section of this manual to
determine a possible cause.
WINDOWS 95/98 - From the Start
menu select ‘Start – Programs –
Windows Explorer’. Open the folder
"My Received Files" and locate the
soundtrack file to be transmitted.
WINDOWS 2000 – From the desktop
(or within the folder that contains the
soundtrack file to be transmitted) locate
the soundtrack file to be transmitted.
1. Select the Model 4000 soundtrack
to receive the transmitted file
Caution: If the selected soundtrack
contains a recording, the transmitted
file will replace it. Erased soundtracks
cannot be recovered.
2. Position the two IR ports within
two feet.
3. Press the Model 4000 RECEIVE
button. The arrow will blink until the
infrared connection is made.
4. Immediately right click on the
soundtrack file to be transmitted and
select ‘Send To – Infrared Recipient’
5. Transmission is indicated on
the Model 4000 display by a rotating
. The computer status bar will
display two red lights flashing
towards one another.
6. Progress of the transmission is
shown on the Model 4000 display with
the symbol.
Note: The soundtrack filename is not
transmitted to the stethoscope. If
appears in the display of the
stethoscope, refer to the Error
Messages section of this manual to
determine a possible cause.
Error Messages
If shows while transmitting data to another Model 4000
or a computer:
• The path of infrared light may be blocked. Position the
infrared ports at each other and retry the operation.
• The infrared port may be dirty. Clean both infrared ports.
• The Model 4000 was removed before the soundtrack was
Receiving a copy of
a soundtrack from
a computer using
Microsoft®
Windows®
95/98/20002
with an infrared
(IR) port
2. Prompts may vary between versions of Windows and are the responsibility of the Microsoft.
References to Windows as it pertains to use of the Littmann Electronic Stethoscope Model 4000 are
for clarification only. Please consult your Microsoft users manual for specific instructions.
Microsoft® and Windows® are trademarks of Microsoft Corporation
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completely transferred. Do not move the stethoscopes until
the is finished rotating.
• The Model 4000 may be exposed to excessive EMI/RFI,
electromagnetic noise. Remove the source of noise.
If none of these is the cause, refer to the Littmann
Stethoscope Service and Warranty section.
Headset Positioning
The Littmann Electronic Stethoscope Model 4000 is designed to
provide a comfortable, acoustically sealed ear fit. Notice that the
eartubes are permanently set at an angle to accommodate the
typical anatomy of the ear canal. The eartips should point in a
forward direction when inserted into the ear canals.
Correct Incorrect
To reduce spring tension in the
headset, hold each eartube at
the bend near the eartip and
gradually pull apart until fully
extended.
To increase spring tension,
grasp the headset with one hand
where the eartubes enter the
plastic tubing and squeeze until
the plastic tubing on one eartube
touches the other. Repeat as
necessary.
For maximum acoustic
performance, comfortable patented
3M™ Littmann® Soft-Sealing
Eartips are provided with the
stethoscope. The stethoscope
utilizes a unique design for
attaching the eartip to the eartube.
The eartips are pushed onto the end of the eartube and snapped
in place. To remove, pull firmly on the eartip.
Diaphragm Removal and Replacement
Under normal conditions, it is unnecessary to remove the rim
and diaphragm for cleaning. The diaphragm can easily be
cleaned with an alcohol wipe. If, however, it is necessary to
remove the rim and diaphragm, carefully follow instructions:
Rim Removal:
• With diaphragm side up, using
a thumbnail, pry the rim out of
its designated groove, and pull
towards you. If the diaphragm
does not come off along with
the rim, remove this separately.
Do not disturb the components located under the diaphragm
once it is removed.
Cleaning of the Rim and Diaphragm:
• Separate the diaphragm from the rim, and clean with mild
soapy water and/or alcohol. The surface of the chestpiece
can also be wiped with alcohol. Take care not to saturate
the chestpiece. Excess liquid used in the cleaning process
can result in moisture getting into the internal components.
Diaphragm and Rim
Reassembly:
• Once the rim and diaphragm
are completely dry, place the
rim on a firm surface. Insert the
diaphragm into the inside
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groove of the rim, starting at one point, and running your
finger around the inside of the rim. This technique will
position the diaphragm properly in the designated groove.
• Place the rim and diaphragm assembly on the chestpiece
surface. Totally engage the assembly in the groove on
chestpiece at one point and hold in place with thumb.
Slowly roll the rim around the chestpiece edge using both
thumbs moving in opposite directions.
General Use and Maintenance
• The entire stethoscope can be wiped clean with alcohol.
• Do not immerse the stethoscope in any liquid or subject it
to any sterilization process.
• Eartips can be removed for a thorough cleaning.
• Remove the battery whenever the stethoscope is stored or
will not be used for several months.
• Avoid extreme heat, cold, solvents and oils. Recommended
storage conditions are from -4˚F to 140˚F (-20˚C to 60˚C),
15 to 95% relative humidity.
Failure to follow care and maintenance recommendations
could result in damage to the internal components of the
Model 4000. Internal damage could cause malfunction of the
product, ranging from a slight decrease in auditory response
to complete failure of the product.
If you experience any problems with the Model 4000 do not
attempt to repair it yourself. Please notify the 3M Health Care
Service Center for directions on shipping and receiving.
Littmann Stethoscope Service and Warranty
Program
The Littmann Electronic Stethoscope Model 4000 is
warranted against any defects in material and manufacture for
a period of one year. If a material or manufacturing defect is
discovered during the warranty period, repairs will be made
without charge upon the return of the instrument to 3M,
except in cases of obvious abuse or accidental damage.
For technical questions, call the 3M Health Care Tech Line at
1-800-441-1922.
For maintenance or repair services in the United States, send
your stethoscope directly to:
3M Health Care Service Center
3M Building 502-1W-01
3350 Granada Ave N
Suite 200
Oakdale, MN 55128
1-800-292-6298
Enclose your name, address, phone number and reason for
repair with your stethoscope.
In Canada:
3M Health Care Service Center
3M Canada Inc.
80 Enterprise Drive South
London, Ontario
Canada N6N1C2
1-519-668-3663
Outside of the United States and Canada, contact your local
3M subsidiary for maintenance and repair information.
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Made in Denmark for 3M Health Care, St. Paul, MN 55144
(U.S.A.) 1 800 228-3957 • Fax [phone]
Visit our web site: http://www.3M.com/Littmann
Attention, see instructions for use.
0086 3M Health Care D-46325 Borken, Germany
3M is a trademark of 3M.
Littmann is a registered trademark of 3M.
34-7051-7198-0
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