University of Michigan

Percev LLC

Jerome P Lynch

Nicholas Alexander Kotov

Kenneth J Loh

Wentao Wang

Nadine Wong Shi Kam

Andrew T Zimmerman

Mohammed M Ettouney

Sharada Alampalli

Tsung-Chin Huo

A method and an osseointegrated prosthesis system having an osseointegrated prosthesis member are provided having a monitoring system operably coupled to the osseointegrated prosthesis member configured to quantitatively assess the osseointegration of the osseointegrated prosthesis member, a wave-generating element coupled to the osseointegrated prosthesis member and configured to output guided waves along the osseointegrated prosthesis member interrogating an interface between bone and the osseointegrated prosthesis member, and a sensing system configured to sense a condition of the interface between bone and the prosthesis.

Sensing strategies for health assessment of osseointegrated prostheses

A monitoring and control system includes a stationary body with a sensor, a moving body with a sensor, and at least one computing device. The stationary body is positioned along a path of movement. The moving body moves along the path and physically interacts with the stationary body. The at least one computing device receives signals from the sensor on the stationary body and from the sensor on the moving body. The at least one computing device determines a performance value of the stationary or moving body based on the physical interaction between the moving and stationary bodies. The performance value is dependent on both of the signals received from the sensor associated with the stationary body and received from the sensor associated with the moving body as the moving body interacts with the stationary body.

Monitoring and control systems

A method for sensing a stimulus comprising providing a sensing assembly having a first structure and a second structure, wherein the first structure is made of a material different than the second structure and each of the first structure and the second structure is nanoscale. The method further includes providing an inductive antenna operably coupled to the sensing assembly, disposing the sensing assembly upon a spatial area, exposing the sensing assembly to the stimulus thereby producing a detectable change in the sensing assembly, and wirelessly coupling a reader with the inductive antenna to obtain a signal representative of the detectable change in the sensing assembly.

Passive wireless readout mechanisms for nanocomposite thin film sensors

The present teachings relate to the application of electrical impedance tomography (EIT) to demonstrate the multifunctionality of carbon nanocomposite thin films under various types of environmental stimuli. Carbon nanotube (CNT) thin films are fabricated by a layer-by-layer (LbL) technique or other techniques and mounted with electrodes along their boundaries. The response of the thin films to various stimuli determined by relying on electric current excitation and corresponding boundary potential measurements. The spatial conductivity variations are reconstructed based on a mathematical model for the EIT technique. Here, the ability of the EIT method to provide two-dimensional mapping of the conductivity of CNT thin films is validated by (1) electrically imaging intentional structural defects in the thin films and (2) mapping the film's response to various pH environments.

Growing community of inventors

Ann Arbor, MI, United States of America

Jerome P Lynch