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	Master Cardiology 22'' Overall Length 2159 Part No: MASTER CARDIOLOGY 22 Inch Overall Qty: .: MASTER CARDIOLOGY 22 Inch Overall
3M LITTMANN MASTER CARDIOLOGY STETHOSCOPE A tunable diaphragm and superb craftsmanship offer the ultimate performance in a superior single-sided stethoscope. The Littmann Master Cardiology stethoscope meets the exacting standards of health care professionals who demand superior acoustic response. * Tunable diaphragm technology allows you to conveniently alternate between low and high frequency sounds without turning over the chestpiece. * Handcrafted solid stainless steel chestpiece. * Two-in-one tube design eliminates tube rubbing noise. * Portable convenience of a single-sided chestpiece. * Excellent acoustic seal and comfortable fit with patented 3M™ Littmann® Snap Tight Soft-Sealing Eartips. * Comfortably angled, anatomically correct headset. * Patient-friendly, nonchill rim and diaphragm. Special procedures adapter for difficult site or pediatric auscultation. * Available in a selection of classic tube colors. * Latex Free. * Seven-year warranty. Acoustics: A master piece in one movement, designed to let you hear both high and low frequency sounds from a patented single-sided chestpiece. With its innovative design, the Master Cardiology stethoscope is the ultimate in acoustical performance. Unique Patented Chestpiece: With just one movement, you can get uninterrupted diagnostic response. With the unique "Master" solid stainless steel chestpiece, you can easily alternate between low and high frequency sounds without moving the chestpiece or operating a switching mechanism. The traditional bell mode and diaphragm mode have been incorporated into the single-sided "Master" chestpiece. For bell mode low frequency monitoring, simply hold the chestpiece in place with light skin contact. For diaphragm mode high frequency monitoring, apply firm pressure on the contoured chestpiece. For an illustration of this, please click here. Two-tubes-in-one design: Even the tubing has been designed to reduce acoustic artifact. The two tubes are incorporated into a single-tube design that eliminates noise artifact from tubes rubbing together. Special Procedures Adapter: The Master Cardiology stethoscope comes with a flexible patented Littmann special procedures adaptor designed for auscultation of difficult body sites (such as ankles, neck, wrists, etc.), pediatric patients as well as emaciated patients. Comfort: The Master Cardiology stethoscope features a non-chill rim and diaphragm assembly. The stethoscope comes with a pair of Littmann Soft-Sealing Eartips designed to assure an excellent acoustical seal in the ear canal and maximum comfort. Also included is an extra pair of firm eartips for your choice of personal fit. Durability: For long lasting performance, the headset assembly is permanently set at a precise angle. This assures a proper fit, minimizes air leaks and prevents the headset from loosening over time. The polished, durable, lightweight alloy eartubes will not chip or corrode. An extra-strength, internal double-leaf spring is designed to be adjustable so that it will always provide proper tension on the eartubes. The latex free tubing is constructed of a specially-formulated polyvinyl chloride that resists chemical breakdown. Warranty: The superior performance of the Littmann Master Cardiology stethoscope is backed by a seven year warranty and a lifetime service and repair policy. The warranty is provided by 3M Health Care. Quite often health care workers raise questions regarding tubing length based on early publications claiming shorter tubing length provides better acoustic response. Some instructors have recommended their students buy the shortest tubing possible. In an attempt to clarify the information surrounding tubing length, Littmann stethoscopes has tested their product line to offer the following information about tubing length. To explain our test results, it will be helpful to compare the tubing of the stethoscope to a garden hose. For example, an increase in the length of a garden hose will decrease the pressure at the end of the hose as a result of frictional and other internal forces. The same effect occurs when the tubing length of a stethoscope is increased. However, in the case of stethoscope tubing, change in length is relatively small; this decrease in acoustic pressure is not detectable by the human ear. Additionally, as tubing length increases, resonant frequency decreases. Considering this fact, an increase in tubing length provides a better response to the lower frequency sounds (an advantage in auscultation). Many heart sounds fall below 150 Hz and are considered low frequency. Because it has been shown that the human ear is least sensitive to low frequency sounds, improved low frequency response is an advantage. Taking these two factors into account, there is no detectable difference in acoustical performance between Littmann stethoscopes with shorter tubing vs. those with longer tubing. In fact, there may be some enhancements to low frequency sounds. When purchasing a stethoscope, the health care practitioner needs to consider their own needs and practices. Longer tubing might be more appropriate for people wearing the stethoscope around their neck as it drapes better. The practitioner’s height and arm length should also be a factor to determine optimal tubing length. Many practitioners would like a little more distance from sicker patients while auscultating. Longer tubing also reduces the amount needed to bend over the supine patient which can stress the practitioner’s lower back. Continue Shopping