STRAIN SENSOR DEVICE WITH A BIOLOGICAL SUBSTRATE AND METHOD OF MANUFACTURING THEREOF

摘要

A strain sensor device having a biological substrate composed of a standalone bone graft or an isolated piece of bone that can be incorporated directly into, or attached to another piece of bone that is then implantable, in a biological subject, and a method thereof. The strain sensor device can includes a strain sensing circuit, which is composed of at least a first dielectric layer and a first conductive layer, that functions as a strain gauge. The first dielectric layer can be composed of dielectric material disposed over the biological substrate. The first conductive layer, which has a pattern, can be disposed over the first dielectric material. A bonding interface is disposed between the biological substrate and the first dielectric layer. The bonding interface can be composed of an underlayer of polydimethylsiloxane and a first interface layer. The underlayer can be disposed on the bone graft substrate.

主权项

1. A strain sensor device implantable in a biological subject, the strain sensor device comprising:
a biological substrate composed of a bone graft; a first dielectric layer composed of dielectric material disposed over the biological substrate; a bonding interface disposed between the biological substrate and the first dielectric layer; a first conductive layer having a pattern disposed over the first dielectric material; and a strain sensing circuit, composed of the first dielectric layer and the first conductive layer, that functions as a strain gauge.