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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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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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

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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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