Featured Research

from universities, journals, and other organizations

Implantable, wireless sensors share secrets of healing tissues

Date:
February 21, 2012
Source:
Rensselaer Polytechnic Institute (RPI)
Summary:
A new implantable sensor can wirelessly transmit data from the site of a recent orthopedic surgery. Inexpensive to make and highly reliable, this new sensor holds the promise of more accurate, more cost-effective, and less invasive post-surgery monitoring and diagnosis.

A new implantable sensor developed at Rensselaer Polytechnic Institute can wirelessly transmit data from the site of a recent orthopedic surgery. Inexpensive to make and highly reliable, this new sensor holds the promise of more accurate, more cost-effective, and less invasive post-surgery monitoring and diagnosis.
Credit: Rensselaer/Ledet

A new implantable sensor developed at Rensselaer Polytechnic Institute can wirelessly transmit data from the site of a recent orthopedic surgery. Inexpensive to make and highly reliable, this new sensor holds the promise of more accurate, more cost-effective, and less invasive post-surgery monitoring and diagnosis.

Following an orthopedic procedure, surgeons usually rely on X-rays or MRIs to monitor the progress of their patient's recovery. The new sensors, created by Rensselaer faculty researcher Eric Ledet, would instead give surgeons detailed, real-time information from the actual surgery site. This in vivo data could lead to more accurate assessments of a patient's recovery, or provide better insight into potential complications.

The wireless sensor measures only 4 millimeters in diameter and 500 microns thick. It needs no battery, no external power, and requires no electronics within the body. Instead, the sensor is powered by the external device used to capture the sensor data.

"Our new sensor will give surgeons the opportunity to make personalized, highly detailed, and very objective diagnoses for individual patients," said Ledet, assistant professor in the Department of Biomedical Engineering at Rensselaer. "The simplicity of the sensor is its greatest strength. The sensor is inexpensive to produce, requires no external power source, yet it is robust and durable. We are very excited about the potential of this new technology."

The sensors look like small coils of wire and are attached to commonly used orthopedic musculoskeletal implants such as rods, plates, or prostheses. Once implanted in the in vivo environment, the sensor can monitor and transmit data about the load, strain, pressure, or temperature of the healing surgery site. The sensor is scalable, tunable, and easy to configure so that it may be incorporated into many different types of implantable orthopedic devices.

One key benefit of this new technology is the possibility of more accurate assessments by physicians for when recovering patients are able to return to work without a risk of further injury.

"Having a stream of real-time in vivo data should take some of the approximation and subjectivity out of declaring a patient recovered and ready to return to work," Ledet said.

Ledet and his research team have filed for patent protection for their new sensor. They currently make each sensor by hand, but are investigating methods for mass production. Ledet has been working on this sensor technology for about five years, and has presented his progress at several conferences. His most recent presentation was earlier this month in San Francisco at the Orthopaedic Research Society (ORS) 2012 Annual Meeting.

Ledet, who earned his master's and doctoral degrees from Rensselaer in 1995 and 2003, conducted this research in collaboration with colleagues at Albany Medical College. Ledet's co-investigator on this project is Dr. Richard Uhl, who earned his bachelor's degree from Rensselaer and is head of the Division of Orthopedic Surgery at Albany Medical College.


Story Source:

The above story is based on materials provided by Rensselaer Polytechnic Institute (RPI). Note: Materials may be edited for content and length.


Cite This Page:

Rensselaer Polytechnic Institute (RPI). "Implantable, wireless sensors share secrets of healing tissues." ScienceDaily. ScienceDaily, 21 February 2012. <www.sciencedaily.com/releases/2012/02/120221124707.htm>.
Rensselaer Polytechnic Institute (RPI). (2012, February 21). Implantable, wireless sensors share secrets of healing tissues. ScienceDaily. Retrieved September 18, 2014 from www.sciencedaily.com/releases/2012/02/120221124707.htm
Rensselaer Polytechnic Institute (RPI). "Implantable, wireless sensors share secrets of healing tissues." ScienceDaily. www.sciencedaily.com/releases/2012/02/120221124707.htm (accessed September 18, 2014).

Share This



More Matter & Energy News

Thursday, September 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Stocks Hit All-Time High as Fed Holds Steady

Stocks Hit All-Time High as Fed Holds Steady

AP (Sep. 17, 2014) The Federal Reserve signaled Wednesday that it plans to keep a key interest rate at a record low because a broad range of U.S. economic measures remain subpar. Stocks hit an all-time high on the news. (Sept. 17) Video provided by AP
Powered by NewsLook.com
Space Race Pits Bezos Vs Musk

Space Race Pits Bezos Vs Musk

Reuters - Business Video Online (Sep. 16, 2014) Amazon CEO Jeff Bezos' startup will team up with Boeing and Lockheed to develop rocket engines as Elon Musk races to have his rockets certified. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
MIT's Robot Cheetah Unleashed — Can Now Run, Jump Freely

MIT's Robot Cheetah Unleashed — Can Now Run, Jump Freely

Newsy (Sep. 16, 2014) MIT developed a robot modeled after a cheetah. It can run up to speeds of 10 mph, though researchers estimate it will eventually reach 30 mph. Video provided by Newsy
Powered by NewsLook.com
Manufacturer Prints 3-D Car In Record Time

Manufacturer Prints 3-D Car In Record Time

Newsy (Sep. 15, 2014) Automobile manufacturer Local Motors created a drivable electric car using a 3-D printer. Printing the body only took 44 hours. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins