3M Littmann Cardiology IV - Stethoscope Operation and Features; Features and Benefits Overview; Adjusting Headset Tension; Selecting the Active Chestpiece Side

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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