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English
3M
™
Littmann
®
Cardiology IV
™
Stethoscope User Manual
Features and Benefits
• Outstanding acoustic performance
• Single-piece tunable diaphragm allows better audibility of high
frequency sounds (adult side, firm pressure)
• Easy to clean, single-piece tunable diaphragms
• Versatile adult and pediatric two-sided chestpiece
• Next generation longer-life tubing
• Dual-lumen tubing provides two sound paths in one tube
• Pediatric side converts to open bell
• 7 year warranty
• Included in box:
o
Snap Tight Soft-Sealing Eartips - Large
o
Snap Tight Soft-Sealing Eartips - Small
o
Snap Tight Firm Eartips
o
Nonchill Bell Sleeve
Explanation of Symbols
Consult instructions for use.
Not made with natural rubber latex.
Instructions for Use
Insert eartips in a forward direction.
Adjust the Headset Tension
To reduce the spring tension, pull the
eartubes apart.
To increase the spring tension, squeeze
the eartubes together.
Select the Active Side of the Chestpiece
Only one side of the chestpiece is acoustically active at a time,
identified by a mark on the stem.
Rotate the chestpiece to change which side is active.
Listen to Low and High Frequency Sounds with Littmann Tunable
Diaphragms on Each Side of the Chestpiece
Use the large side for adults and the small side for pediatric or thin
patients, around bandages and carotid assessment.
Low frequencies:
apply light pressure to
the chestpiece
High frequencies:
apply firm pressure to
the chestpiece
