Skip to content
  • Happy Health
  • Happy Mindset
  • Animal Wonders
  • About Us
    • Team
  • Subscribe
Menu
  • Happy Health
  • Happy Mindset
  • Animal Wonders
  • About Us
    • Team
  • Subscribe
Happy News

The World’s Tiniest Pacemaker Ever Made That Dissolves

For the small percent of babies born with a heart defect who need a pacemaker in the fragile days after surgery, the current solution involves wires, a device strapped to the outside of the chest, and a removal procedure risky enough that it has killed patients. A team of engineers and doctors at Northwestern University just changed that entire picture with a device so remarkably small it can fit inside the tip of a standard syringe. The world’s tiniest pacemaker, smaller than a single grain of rice, can now be injected directly into place, controlled wirelessly using gentle pulses of light, and then left to quietly dissolve into the body on its own once it is no longer needed. No additional surgery, no protruding wires, no risk of tearing heart tissue when the time comes to remove it.

The device works by pairing with a soft flexible patch worn on the patient’s chest that monitors the heartbeat continuously throughout the night and day. The moment it detects an irregular rhythm, it automatically sends pulses of near-infrared light that wirelessly instruct the tiny pacemaker to deliver precisely the right electrical signal to the heart muscle below. Powered entirely by the body’s own fluids, the device has already performed successfully in tests on mice, rats, pigs, dogs, and donated human heart tissue in a laboratory setting, delivering as much stimulation as a full-sized pacemaker despite its microscopic scale. Researchers estimate it could be ready for human trials within a few years, and the lead scientist says the same underlying technology could eventually extend far beyond heart medicine into nerve regeneration, wound healing, and next-generation smart implants. Independent researchers not involved in the study called it a transformative breakthrough and a genuine paradigm shift for the entire field of medical technology.

Source: https://happyeconews.com/thailand-celebrates-rare-species-rediscovery/

PrevPreviousThailand’s Ghost Cat Just Came Back From The Dead
NextArtist Builds Reinterpretation of Mona Lisa From 100,000 Pieces Of TrashNext

Recent Articles

Happy News

Thousands Of Blue Glow In The Dark Snails Return Home

March 12, 2026

Thousands of tiny snails no bigger than a fingernail just made an extraordinary journey of more than 15,000 miles to return to their island homes in French Polynesia, and they arrived glowing. Before each snail was released into the wild, conservationists placed a small dot of UV reflective paint on

Read More
Happy News

Listed As Extinct For Millennia But Hiding In Plain Sight

March 12, 2026

Scientists just made a discovery so rare it has almost never happened before in the entire history of wildlife research. Two species of marsupials believed to have vanished from the earth more than 6,000 years ago have been found alive and well in the remote rainforests of New Guinea, the

Read More
Happy News

Freemont California Was Just Named The Happiest City In America

March 11, 2026

Not all sunshine comes from the weather. Fremont, a largely suburban city nestled in Northern California’s Bay Area, has once again claimed the top spot on WalletHub’s annual ranking of the happiest cities in America, dethroning bigger, flashier metros for the second consecutive year. The study analyzed more than 180

Read More
« Previous Next »
  • Privacy Notice
  • Accessibility Notice
  • Do Not Sell or Share My Personal Information
  • Unsubscribe
  • Terms and Conditions
  • Privacy Policy
  • Privacy Notice
  • Accessibility Notice
  • Do Not Sell or Share My Personal Information
  • Unsubscribe
  • Terms and Conditions
  • Privacy Policy
Copyright © 2026 HappyNews.