John G. Caruso I don't have an individual devise to thank, but...well I wrote about it in March.
https://www.linkedin.com/pulse/thank-you-all-my-medical-connections-saving-moms-life-john-caruso?trk=prof-post

I think all of them serve a special purpose. I used to work in a gait control engineering lab, I found the Prosthetic Legs so incredible. I wish every amputee can afford them and be able to walk again.

This!! thanks to save lives: www.reanimacionrcpb.com

Surely injection and infusion devices are like the clean water an sewerage of Engineering.

AEDs! They save lives!

ICDs save lives

Joe McMenamin And so they do. Perhaps what we should thank is no one device, but, rather, the brilliant minds that conceived and developed them.

vns improves the life of epileptic people

Anesthesia Machines are key of any surgery

Karen Boyd, ASQ CQA Great contributions thus far! Thanks everyone. Keep them coming...

My personal favorite "medical devices" that I rely on for most of my waking hours, allowing me to use my computer, drive my car, and altogether see the world are my contact lenses. :)

Eyeglasses, for me and my mom. Dental tools and fittings. For just my mom, the Icy Hot TENS for non-narcotic, over the counter, non-invasive, device-based temporary attenuation of back pain.

Been in this space for 32 years and why I do what I do. www.integrasystems.org. From a cardiac perspective, DDDRR (pacemakers), AICDS, PTCA, stents, cardiac ablation, porcine/mechanical heary valves, and early 80's the Swan-Ganz thermodilution catheter. List could go on.

my 2 hip replacements

Dan Jones Insulin pumps.

Defibrilators and pacemakers!

Clarisa Tate Contact lenses for myself -- having had bad eyesight since I was a little child. However, with a small nose and pretty much no bridge, this means my eyeglasses kept falling off! Contact lenses helped me a lot.

Ventilator, baby monitoring devices for my daughter -- Thanks to baby monitoring devices and an observant grandma people realized what was happening before it was too late within an hour of birth. She was placed in the ventilator and given antibiotics. At first they thought it was an underdeveloped lung, then it turned out to be a lung infection that the antibiotics treated well. I still remembered being numb coming out of the hospital and coming home without a baby. The medical devices and the antibiotics helped healthcare professionals save her life.

Dental consumables for happy smiles

PEMF and OZONE from Dr. N. Tesla for my recovery. Class 1

Defibrillator and shoulder prosthesis. They have both been life savers.

CardioMap measures the stress levels and hypoxia in Seconds :-)

Anti-wrinkle tool

Insulin pumps with glucose monitoring sensors and eyeglasses.

A class 1 laser!

2 Stryker hips - and a partridge in a pear tree!

2 hips from dr Berger at Rush!

ceramic teeth- make me smile

The Tazim Pain Modulation Device. For Changing the lives of most chronic pain sufferers that I know.

Lisa Shaffer The OmniPod insulin "patch" pump, tubeless, with wireless PDM. This is an awesome device! Has changed the lives of insulin-dependent diabetics, especially children.

The pressure transducer with needle-free transfusion connector, really helps a lot in avoiding patient's pain and cross contamination.

Dan Jones 3D printed prosthetics.

Multi Radiance's Laser Devices. This is the best and safest laser on the market and everyone should be able to have access to one for great pain relief and incredible life changing capabilities.

Stephen Griffin Don't forget the small stuff: contact lenses