Welch Allyn Tycos Harvey Original Double Head Manual page 2

Designed to enable the medical professional to
obtain superior and accurate auscultation.
The Harvey and Harvey DLX Double Head and Triple Head Stethoscopes
were designed after extensive research and testing. The critical design of the
tubing, proper weight and sizing of the chestpiece and rotatable binaurals,
combine to make the Harvey Stethoscopes exceptional instruments for
auscultation. The final testing, of course, was on the patient.
The Harvey Stethoscopes will give you the ability to identify the lowest
frequencies that the human ear can detect, such as a faint diastolic
gallop or rumble, as well as the higher frequencies of the faint early
blowing aortic diastolic murmur.
Furthermore, with over five decades of experience
using stethoscopes, Dr. W. Proctor Harvey has
designed his stethoscopes to meet the comfort and
portability needs which physicians demand.
Triple Head
Flat Diaphragm
"The workhorse." Excellent for all sounds and murmurs. Best
for higher frequencies (such as faint diastolic murmur of aortic
regurgitation). Also ideal to identify splitting of sounds, systolic
clicks and ejection sounds. 4.76 cm diameter.
2
Chestpieces
Both the double head and triple head
offer a flat diaphragm and bell. The triple head also
utilizes a corrugated diaphragm for additional
auscultatory capabilities. Selection is accomplished by
holding the chestpiece stem in one hand and rotating
the chestpiece until a click is heard or felt.
Double Head