Stethoscope Tips

How to install a Non-Chill Ring from the Chestpiece of a MDF® Instruments Stethoscope

Has your non-chill ring become dirty or cracked? All the free stethoscope parts you need are offered under our Free-Parts-For-Life program! Your non-chill ring is a protector for the low frequency side of your stethoscope. When examining patients, having a cold touch from the chest piece is prevented with the non-chill ring.

To put on your non-chill ring on to the stethoscope, locate the edge of the non-chill ring that sticks out slightly further than the other side it will look longer and it will taper down to a more narrow side fit it over the Bell side of the stethoscope and stretch over to fit. Work your way around fitting the larger edge of the non-chill ring up over the bell and secure into place. 

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How to Find Your Stethoscope's Serial Number

How to Find Your Stethoscope's Serial Number

To find your MDF Instruments® stethoscope serial number look for seven characters printed on the stethoscope chess piece. This should be a letter followed by a six digit number. For the 797X unscrew the chest piece to find the serial number. For the 767X you can find the serial number in the middle barrel.

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How to Find Your Sphygmomanometer's Serial Number

How to Find Your Sphygmomanometer's Serial Number

To find your sphygmomanometer's serial number look for a seven digit number printed on the face of your gauge remember to tilt the gauge 45 degrees to see the stamp.

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The features of an MDF Instruments® stethoscope

The features of an MDF Instruments® stethoscope

Our number one focus is sound quality and performance, so with that being said we use the highest quality materials to promote that. Now looking at the y-portion of the Ergonomax™ headset, we utilize what's called a dual leaf spring.

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