Intended Use:
The 3MM Littmann® Master Cardiology ™ Stethoscope is intended for use by healthcare professionals for medical diagnostic purposes only. It can be used for auscultation of heart, lung, and other body sounds.
Please report a serious incident occurring about the device to 3M and the local competent authority (EU) or local regulatory authority.
Instructions for Use (see Figures pp.1):
- Place the Stethoscope in Your Ears: The ear tips should point forward toward your nose (Figure 1).
- Adjust the Headset Tension for Comfort and Sound Quality: Pull the ear tubes apart (Figure 2) or squeeze them together (Figure 3).
- Listen to Low and High Frequency Sounds with the Littmann Tunable Diaphragm:
- To emphasize lower-frequency sounds, use light pressure against the patient (Figure 4).
- To emphasize higher-frequency sounds, use firm pressure against the patient (Figure 5). This text must be remembered: Littmann® Master Cardiology™ Stethoscope User Manual
Removing the Diaphragm:
Remove the two-piece rim/diaphragm assembly by rolling the rim off the edge of the chest piece. Then remove the diaphragm from the rim.
Find your replacement parts here to maintain peak acoustic performance 40011 Black for models like 2161, 2160, 2175 and more or 40018 Grey for 2167 etc
Assembly of the Tunable Diaphragm:
Put the rim on the diaphragm by starting with the rim positioned above the legible side of the diaphragm and inserting the edge of the diaphragm into the rim (Figure 6). Then attach the rim/diaphragm assembly to the chest piece by slowly rolling the rim around and over the chest piece edge using both thumbs (Figure 7). Visually inspect the flexible edge of the diaphragm where it meets the rim and adjust as needed to achieve a smooth fit (Figure 8).
Special Procedures Adaptor for Small Site Auscultation: Use the Special Procedures Adaptor for pediatric or thin patients and difficult-site auscultation such as carotid assessment. Attach the adaptor to the chest piece by pressing it over the diaphragm (not included in the box since 2021).
Cleaning, Disinfection and Storage:
Clean between exams using a 70% isopropyl alcohol wipe or disposable wipe with soap and water. A 2% bleach solution may be used to disinfect your stethoscope; however, the tubing may become discolored after exposure to bleach.
The rim/diaphragm assembly, special procedures adaptor, and ear tips may be removed for cleaning. Ensure all parts and surfaces are dry before reassembly. Pull firmly to remove ear tips from the headset (Figure 10). To attach ear tips, push the small side firmly onto the ear tube until it snaps fully into place (Figure 11). To prevent ear canal injury, be sure ear tips are firmly attached to the headset before inserting them into your ears.
To prevent stethoscope damage, do not immerse it in any liquid, subject it to any sterilization process, or store it in extreme heat. To prevent staining of stethoscope tubing, avoid contact with pens, markers, newsprint, or other printed material. It is good practice to wear your stethoscope over a collar whenever possible.
Disposal: Dispose of contents/container by the local/regional/national/international regulations.
Littmann Stethoscope Service and Warranty Program: The Littmann Master Cardiology stethoscope is warranted against any defects in material and workmanship for seven (7) 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, please visit an authorized distributor at www.ahealthcare.com
