Stethoscope Tips

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


It's a great idea to change out your stethoscope parts every once in a while to keep them fresh and hygienic. If they are older and have not been swapped in a while you may have an easier time cleaning your chest piece with 70% isopropyl alcohol before removing any parts. Your non-chill ring may get dirty or crack over time, this is normal. Unlike the diaphragm, this low frequency side of the dual head stethoscope will still continue to work properly even without the ring, it just may have a colder touch on the patient.

 To remove the non-chill ring from your stethoscope chest piece, use pressure and move the non chill ring from the inside of the bell to the outside and over and around work your way pushing the non-chill ring below the bell and lift it up and over to completely remove it. Make sure to register your stethoscope to take advantage of these free parts for your stethoscope offered under our Free-Parts-For-Life Program!  

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MDF® INSTRUMENTS

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How to Remove your MDF® Instruments Diaphragm and Retaining Ring from the Chestpiece

How to Remove your MDF® Instruments Diaphragm and Retaining Ring from the Chestpiece

Sometimes the diaphragm will crack or get dirty after sometime of use, this is why we offer it under our Free-Parts-For-Life program! We are here to assist with the process to change out your stethoscope parts for fresh ones.

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How to Install Your Diaphragm and Retaining Ring on Your MDF® Stethoscope

How to Install Your Diaphragm and Retaining Ring on Your MDF® Stethoscope

To place a diaphragm into your retaining ring warm up the ring to make it more flexible. You can warm up the retaining ring in warm water or in a cup with a blow dryer. Slide the diaphragm into the ring and make sure that the diaphragm is secure without any edges peeking out.

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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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