How To Videos

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 utili...

With you for LIFE!

MDF Instruments® is committed to not only providing the best sound quality stethoscope for medical professionals and the best personalized designs, but we are here for you when your beloved sunflow...

How to Get Free Parts for an MDF Instruments Stethoscope

We replace our ComfortSeal™ soft silicone eartips in 3 sizes. They are available for free in large, medium and small sizes, in clear and black colors. We offer them for free so that you can keep th...

How to Replace the Battery in a Pulse Time Stethoscope

If you no longer see the digital hands on your MDF Instruments® Pulse Time® Stethoscope clock, it’s time to replace the battery. To replace the battery, first remove the metal retaining ring from t...

How to Install a Stethoscope Diaphragm and Retaining Ring

To place the stethoscope diaphragm into the retaining ring, warm up the ring to make it more flexible.You can warm up the retaining ring in a cup of warm water or using a blow dryer.