3M Littmann Classic III Stethoscope User Manual

: June 3, 2024
: 3M

Table of Contents

3M Littmann Classic III Stethoscope
Explanation of Symbols
Instructions for Use
Select the Active Side of the Chestpiece
Convert to a Traditional Open Bell
Cleaning, Disinfection, and Storage
Littmann Stethoscope Service and Warranty Program
Documents / Resources

3M Littmann Classic III Stethoscope

3M™ Littmann® Classic III™ Stethoscope

High acoustic sensitivity
Dual single-piece tunable diaphragms (pressure sensitive)
Versatile adult and pediatric two-sided chest piece
Small-side diaphragm prevents debris in open bell
Snap-tight soft-sealing ear tips
Next-generation longer-life tubing
Small side converts to open bell

Congratulations on the purchase of your new
3M™ Littmann® Classic III™ Stethoscope. The Littmann Classic III stethoscope provides high acoustic sensitivity combined with exceptional versatility. Its innovative design offers a tunable, single-piece diaphragm on each side of the chestpiece; the large side can be used for adult patients, while the small side is especially useful for pediatric assessment. Plus, the pediatric side of the chestpiece can be converted to a traditional bell by replacing the tunable diaphragm with the nonchill bell sleeve included with your purchase. For more information, visit www.littmann.com.

Explanation of Symbols

Instructions for Use

Place the Stethoscope in Your Ears

The stethoscope headset is angled to complement the anatomy of the typical ear canal and is designed to provide a comfortable, acoustically sealed fit. The eartips should point in a forward direction as you insert them into your ears . 3M-Littmann-Classic-III-Stethoscope-FIG-1

Adjust the Headset Tension
If necessary, you can adjust the tension in the headset to ensure a tight, yet comfortable fit in your ears.

To reduce the spring tension in the headset, pull the eartubes apart. Repeat until the desired tension is achieved.
To increase the spring tension in the headset, squeeze the eartubes together. Repeat until the desired tension is achieved.

Select the Active Side of the Chestpiece

The Littmann Classic III stethoscope features a two-sided chest piece. Only one side of the chest piece is acoustically active at any one time, which is identified by a mark on the stem. Rotate the chest piece to change which side is active.
Littmann Tunable Diaphragm – Listen to Low and High-Frequency Sounds
Both sides of the chest piece are equipped with the proprietary Littmann tunable diaphragm that enables you to emphasize either low or high-frequency sounds by simply adjusting the pressure applied to the patient.

Low frequencies: To emphasize lower-frequency sounds, use light pressure against the patient.
High frequencies: To emphasize higher frequency sounds, use firm pressure against the patient.

Convert to a Traditional Open Bell

The small side of the chestpiece can be used with the Littmann tunable diaphragm or it can be converted to a traditional open bell with the non-chill sleeve included with your purchase. To remove the Littmann tunable diaphragm, pinch the rim of the diaphragm with your thumb and index fingernails; pull and lift the diaphragm from the chest piece.
To assemble the non-chill bell sleeve, place one side of the sleeve on the edge of the chest piece and stretch it over and around the chestpiece edge.
To re-assemble the Littmann tunable diaphragm, remove the non-chill bell sleeve. Insert the flexible edge of the tunable diaphragm into the groove of the rim and slowly roll the rim around and over the chestpiece edge. 3M-
Littmann-Classic-III-Stethoscope-FIG-5

Cleaning, Disinfection, and Storage

Clean your stethoscope in between each patient with either a 70% isopropyl alcohol wipe or using a disposable wipe with soap and water. It is a best practice to use a disposable wipe when cleaning the stethoscope to remove organic material. A 2% bleach solution may be used to disinfect your stethoscope. However, stethoscopes that contain red pigments in the tubing color (Burgundy, Pink, Plum, Peach, Raspberry, Orange, etc) experience slight discoloration after exposure to bleach. Due to the destructive nature of bleach, only use a bleach solution on a limited basis and/or when necessary. The tunable diaphragms, non-chill bell sleeves, and ear tips may be removed for thorough cleaning (ensure all parts and surfaces are dry before reassembly). To remove the ear tips from the headset, pull firmly. To assemble the ear tips, push the small side of the ear tip firmly onto the ear tube until it snaps fully into place.

Do not immerse your stethoscope in any liquid.
Do not subject your stethoscope to any sterilization process.
Avoid storing your stethoscope in extreme heat.

Littmann Stethoscope Service and Warranty Program

Please register your stethoscope online at: http://www.littmann.com/warranty- registration
The Littmann Classic III stethoscope is warranted against any defects in material and workmanship for a period of five (5) years. Within the warranty period, repairs will be made without charge upon the return of the stethoscope to 3M, except in cases of obvious abuse or accidental damage.
For service and repair in the U.S.A., please visit www.littmann.com/service or call 1-800-292-6298. If you are outside of the U.S.A.,
please visit www.littmann.com for the contact information of your local 3M office.

3M, Littmann, the L Littmann logo, the L, and Classic III are trademarks of 3M.
Used under license in Canada.
© 2015, 3M. All rights reserved.
Made in the U.S.A. by 3M Health Care,
2510 Conway Ave. St. Paul, MN 55144 (U.S.A.) 1-800-228-3957 Visit our website www.littmann.com
3M, Littmann, the L Littmann logo, the L, and Classic III are trademarks of 3M. Used under license in Canada.
© 2015, 3M. All rights reserved.
Issue Date: 2014-07
34-8716-5219-3
3M Deutschland GmbH Health Care Business Carl-Schurz-Str. 1 41453 Neuss Germany

Documents / Resources

| 3M Littmann Classic III Stethoscope [pdf] User Manual
Littmann Classic III Stethoscope, Littmann Classic III, Stethoscope
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| 3M Littmann Classic III Stethoscope [pdf] User Manual
Littmann Classic III Stethoscope, Littmann, Classic III Stethoscope, Stethoscope