Select your localized edition:

Close ×

More Ways to Connect

Discover one of our 28 local entrepreneurial communities »

Be the first to know as we launch in new countries and markets around the globe.

Interested in bringing MIT Technology Review to your local market?

MIT Technology ReviewMIT Technology Review - logo


Unsupported browser: Your browser does not meet modern web standards. See how it scores »

{ action.text }

Acoustic Implant

Remon Medical of Caesarea, Israel, is adapting a sound-based underwater communication technique to monitor bodily functions and even administer drugs. Remon’s tiny acoustic telemetry device, the size of a grain of rice, has no antenna or other wires and can be implanted deep in the body. Similar devices that use radio-based signals must be implanted a few millimeters under the skin or, if placed deeper, paired with a controller near the skin for communication and power. Remon’s device is charged remotely using ultrasound: a membrane stretched across a hole in its custom transducer converts sound waves to electricity. By using a flexible, micrometer-thin titanium membrane, instead of a rigid surface, Remon boosted the transducer’s efficiency 1,000-fold. The firm’s first products are sensors that measure pressure in the arteries of patients with congestive heart failure or abdominal aortic aneurysms, which affect more than seven million people in the United States. Future devices might release drugs. Remon has begun human testing and hopes to go to market in 2005.

0 comments about this story. Start the discussion »

Tagged: Computing

Reprints and Permissions | Send feedback to the editor

From the Archives


Introducing MIT Technology Review Insider.

Already a Magazine subscriber?

You're automatically an Insider. It's easy to activate or upgrade your account.

Activate Your Account

Become an Insider

It's the new way to subscribe. Get even more of the tech news, research, and discoveries you crave.

Sign Up

Learn More

Find out why MIT Technology Review Insider is for you and explore your options.

Show Me