Tech Briefs

Implantable Wireless MEMS Sensors for Medical Uses

Sensors designed and fabricated according to the principles of microelectromechanical systems (MEMS) are being developed for several medical applications in outer space and on Earth.The designs of these sensors are based on a core design family of pressure sensors, small enough to fit into the eye of a needle, that are fabricated by a “dissolved wafer” process. The sensors are expected to be implantable, battery-less, and wireless. They would be both powered and interrogated by hand-held radio transceivers from distances up to about 6 in. (about 15 cm). One type of sensor would be used to measure blood pressure, particularly for congestive heart failure. Another type would be used to monitor fluids in patients who have hydrocephalus (high brain pressure). Still other types would be used to detect errors in delivery of drugs and to help patients having congestive heart failure.

This work was directed by Alexander Chimbayo of Integrated Sensing Systems, Inc. under a NASA Small Business Innovation Research (SBIR) contract monitored by Langley Research Center. For further information, contact: Dr. Alexander Chimbayo Integrated Sensing Systems, Inc. 391 Airport Industrial Drive Ypsilanti, MI 48198 Phone No.: (734) 547-9896 Ext. 116 E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Refer to SBIR-0010, volume and number of this NASA Tech Briefs issue, and the page number.