12 Days of Christmas- 2019

Dec 1, 2019 12:26:56 AM


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Littmann App

Aug 15, 2016 1:45:11 PM


 download PDF document here

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Littmann Parts Kit

Aug 15, 2016 1:27:38 PM


 download PDF document here

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3M Littmann Classic III

Jan 12, 2015 2:13:15 PM

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3M Littmann Colors

May 19, 2014 3:40:27 PM

new colors

The 3M™ Littmann® Cardiology III™ Stethoscope combines outstanding acoustic performance with exceptional versatility. Its innovative design offers a patented tunable diaphragm on each side of the chestpiece.


  • Double-sided chestpiece, for adult and pediatric auscultation
  • Pediatric side can be converted to an open bell for low frequencies using non-chill bell sleeve (included).
  • Pressure-based sound frequency adjustment with tunable diaphragm
  • Parallel noise-reducing sound channels in the tubes
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$5.00 Off Shipping

Oct 10, 2013 10:38:26 AM

For a limited time Redding medical is offering $5.00 off shipping of orders of $125.00 or more. 
Now you have the best prices AND reduced shipping!

Use Coupon Code: 1013

Shop today. 

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Littmann Learning Institute

Apr 4, 2013 1:42:00 PM

3M™ Littmann®Learning Institute

As a Littmann stethoscope user, you will have the opportunity to hone your auscultation skills with a variety of educational programs, including the 3M™Littmann® Learning Institute, our premier educational platform. The Learning Institute curriculum includes basic online content for all clinicians, including heart and lung sounds, chest auscultation techniques and basic stethoscope use and care. In addition, by registering your Littmann stethoscope you can access premium online content, including auscultation skills courses. For more information on Littmann learning opportunities, visit

Learn more about the top quality Littmann products available now.

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Littmann Cardiology III stethoscope on huge sale- this weekend ONLY!

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Littmann 3000 Electronic Stethoscope

Jan 9, 2013 5:24:00 PM

3M Introduces Littmann Electronic Stethoscope Model 3000 with Breakthrough Ambient Noise Reduction (ANR) Technology; Designed to Pick Up Difficult-To-Hear Heart and Lung Sounds While Offering Superior Acoustic Sensitivity

3M created the Littmann Electronic Stethoscope Model 3000 featuring amplification and proprietary ambient noise reduction (ANR) technology. The new Littmann Model 3000 has been proven to reduce ambient noise by an average of 75 percent without filtering out critical body sounds and offers amplification up to 18 times greater than the best acoustic stethoscope. This breakthrough technology represents a key milestone in the area of acoustic sensitivity that can be critical to proper clinical diagnosis and quality auscultation.

In recent controlled experiments, clinicians using the Littmann Model 3000 have picked up difficult-to-hear heart and lung sounds, while missing or misidentifying those same sounds with an acoustic (non-electronic) cardiology-grade stethoscope. In a multi-center clinical study, doctors rated the Littmann Model 3000 significantly better than traditional, nonelectronic stethoscopes when comparing the tone and clarity of heart, lung, blood vessel and bowels sounds.

Eighty-two percent of cardiologists in a controlled experiment indicated it was easier to detect an aortic regurgitation (Grade 1 or 2) with the Littmann Model 3000 than with an acoustic cardiology-type stethoscope of traditional design(1). In that same experiment, cardiologists missed a Grade 2 aortic regurgitation murmur five times more often with the acoustic stethoscope than they did with the Model 3000.

In another experiment, 90 percent of critical care nurses, who were asked to identify prerecorded normal and abnormal lung sounds, indicated that it was easier to detect abnormal sounds with the Littmann Model 3000 than with an acoustic cardiology-type stethoscope of traditional design(2). In that same experiment, critical care nurses misidentified whether a lung sound was normal or abnormal two times more often with the acoustic stethoscope than they did with the Model 3000.

"For more than 40 years, Littmann has been the stethoscope doctors, nurses and other healthcare professionals have used to learn auscultation skills," said Ned Hancock, product manager. "3M is proud to take this trusted diagnostic tool to the next level with the Littmann Model 3000, which we believe will increase clinicians' ability to pick up sounds that are difficult to hear, even in a noisy environment."

Ambient Noise: a Hindrance to Diagnosis

Health care professionals have long been in need of a solution to the problem of ambient noise, as it can mask some body sounds making diagnosis more difficult. Ambient noise includes human voices, medical equipment and other environmental sounds. Importantly, ambient noise is not limited to the air; it can travel through the patient's body as well. This noise makes it more difficult to hear the body sounds of interest.

Previous attempts to reduce ambient noise have involved amplification or filtering. Unfortunately, when important body sounds were amplified, so was ambient noise. And, efforts to filter ambient noise may result in the filtering out of important body sounds.

Today's Technology Results in a Better Diagnostic Tool

Reducing ambient room noise requires eliminating the noise when it is in the air and when it travels through the patient's body. ANR technology successfully addresses this issue without filtering out important sounds. Noise from the room enters the stethoscope through a thin gap in the chestpiece. Once inside, this noise meets the ambient noise that has traveled through the patient's body and entered the chestpiece through the diaphragm. The ambient noise, traveling the two pathways, cancels itself out, leaving only the heart and lung sounds clinicians need to hear.

Significantly, ANR technology does not filter out important body sounds, allowing clinicians to gather the information they need to make the diagnosis. Presenting clinicians with a new standard in auscultation equipped with ANR technology, the Model 3000 builds upon the trusted, dependable Littmann brand name. About 3M Health Care 3M Health Care, the largest of seven major 3M business segments, is dedicated to improving the practice, delivery and outcome of patient care. 3M Health Care is a leading provider of solutions for medical, dentists, pharmaceutical, health information systems and personal care markets. Key brands from the 3M Medical Division include: Tegaderm, Steri-Strip, Red Dot, Littmann, Micropore, Attest, and Ioban.

About 3M - A Global, Diversified Technology Company; Every day, 3M people find new ways to make amazing things happen. Wherever they are, whatever they do, the company's customers know they can rely on 3M to help make their lives better. 3M's brands include Scotch, Post-it, Scotchgard, Thinsulate, Scotch-Brite, Filtrete, Command and Vikuiti. Serving customers in more than 200 countries around the world, the company's 67,000 people use their expertise, technologies and global strength to lead in major markets including consumer and office; display and graphics; electronics and telecommunications; safety, security and protection services; health care; industrial and transportation. For more information, including the latest product and technology news, visit

3M, Tegaderm, Steri-Strip, Red Dot, Littmann, Micropore, Attest, Ioban, Scotch, Post-it, Scotchgard, Thinsulate, Scotch-Brite, Filtrete, Command and Vikuiti are trademarks of 3M.

  1. 100 cardiologists and surgeons listened to prerecorded heart sounds with and without Grade I or Grade II aortic regurgitation murmurs, presented in random order in the presence of 70-75 dB ambient noise, using a 3M Littmann Electronic Stethoscope Model 3000 and an acoustic (nonelectronic) high-end, cardiology-type stethoscope.
  2. 137 critical care nurses listened to, and were asked to identify, prerecorded normal and abnormal lung sounds (with crackles, wheezes or rhonchi), presented in the presence of 70-75 dB ambient noise. They listened with both the Littmann electronic stethoscope Model 3000 and an acoustic (non-electronic) high-end cardiology-type stethoscope.
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Littmann Stethoscope 3200

Jun 8, 2012 5:28:14 PM

Littmann Stethoscope Model 3200/Zargis Cardioscan

Software Design Innovation award for the 3M healthcare corp. Finalist for prestigious Edison Award

3M and Zargis Medical Corp. announced that the 3M™ Littmann® Electronic Stethoscope Model 3200 (Littmann Model 3200) and the Zargis Cardioscan™ software recently received two industry awards for design and innovation: the “red dot: best of the best” award for product design, given by the Design Zentrum Nordrhein Westfalen, an internationally known design institution located in Essen, Germany, and the Medical Design Excellence Award, sponsored by Medical Device & Diagnostic Industry (MD&DI) magazine.

The novel stethoscope/software system, which was named 2009 Popular Science “Innovation of the Year”, is also a finalist in the Electronics and Computers category for the prestigious Edison Award, given to companies with products that drive innovation, creativity and ingenuity in the global economy. “It’s an honor that the Littmann Model 3200/Zargis Cardioscan system continues to be recognized by the industry for its innovative technology and design,” said Ingrid Blair, global business manager, 3M Infection Prevention Division. Through the use of Bluetooth® technology and algorithmic computing, the Littmann Model 3200 and Zargis Cardioscan system is changing the way physicians approach auscultation and the interpretation of biological and physiological sounds.

The Medical Design Excellence Award (MDEA) recognizes contributions and advances in the design of medical products. Entries are evaluated on the basis of their design and engineering features, including innovative use of materials, user-related functions that improve healthcare delivery and change traditional medical attitudes or practices, enhanced benefits to the patient, and ability to edtend medical product development.

The Littmann Model 3200 and Zargis Cardioscan system was launched in 2009 as the first electronic stethoscope featuring Bluetooth technology, which wirelessly transfers heart, lung and other body sounds from the stethoscope chest piece to Zargis Cardioscan or Zargis StethAssist™ software. The stethoscope and Cardioscan software combination is designed to help clinicians identify suspected heart murmurs and differentiate between those that should be referred for echocardiography and those that should not, based on guidelines issued jointly by the American College of Cardiology and the American Heart Association. Based on the software analysis and doctors' assessment, physicians can choose to refer patients for a definitive echocardiogram test.

3M Health Care, one of 3M’s six major business segments, provides world-class innovative products and services to help healthcare professionals improve the practice, delivery and outcome of patient care in medical, oral care, drug delivery and health information markets. Learn more at

About Zargis Medical Corp.

Zargis is a global medical device company focused on improving health outcomes and cost-effectiveness through diagnostic support software and innovation. Zargis is majority-owned by Speedus Corp. (NASDAQ: SPDE), and both 3M Company (NYSE: MMM) and Siemens Corporate Research, a division of Siemens AG (NYSE: SI), hold equity positions.

About Redding Medical Inc.

Redding Medical has been in business since 1975 and is a distributor of 3M Littmann stethoscopes and the Cardioscan software.

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