Prenatal monitoring device
A garment shaped to approximate the abdomen of an expectant mother having a layered laminated conductive material adhered to the garment is disclosed. A portion of the laminated material is configured to directly contact the skin of the maternal abdomen to create an electrical signal connection. A portion of the layered laminated material comprises a stretchable circuit assembly having a substrate with an adhesive layer, a thermoplastic layer, a conductive layer and an encapsulating layer. A monitor controller is disposed about the garment and is configured to receive electrical signals from the circuit assembly and transmit information related to the electrical signals to a remote location.
1. A method of manufacturing a garment shaped to approximate the abdomen of a pregnant female human having a layered laminated conductive material forming a circuit assembly adhered to the garment, comprising:
disposing a stretchable first conductive layer comprising silver on a stretchable substrate forming a plurality of sensors and conductive traces, wherein the conductive traces connect each of the plurality of sensors to one or more conductive leads;
disposing a second stretchable conductive layer comprising a carbon composite atop the first conductive layer, wherein the second conductive layer is shaped to approximate the first conductive layer;
disposing an encapsulating layer about the conductive traces and about a perimeter of the sensors leaving a face of the sensors exposed; and
disposing the substrate on the garment wherein the exposed face of the sensors remains exposed.
2. The method of claim 1 , further comprising disposing a third conductive layer atop the second stretchable conductive layer.
3. The method of claim 1 , further comprising disposing a monitor controller about the garment coupled to each of the conductive leads, wherein the monitor controller comprises a control unit configured to receive electrical signals from the sensors and transmit information related to the electrical signals to a remote location.
4. The method of claim 1 , wherein the garment comprises a concave front panel coupled to a substantially planar back panel.
5. The method of claim 4 , wherein the substrate is disposed about the concave front panel of the garment.
6. The method of claim 1 , wherein the garment comprises a first set of sensors selected from the plurality of sensors disposed about a top portion of the garment and a second set of sensors selected from the plurality of sensors disposed about a bottom portion of the garment, said first set of sensors and said second set of sensors being disposed symmetrically about an imaginary axis extending through a center of the garment parallel to a longitudinal axis of a front panel of the garment.
7. A method of manufacturing a garment shaped to approximate the abdomen of a pregnant female human having a layered laminated conductive material forming a circuit assembly adhered to the garment, comprising:
disposing a stretchable first conductive layer comprising silver on a stretchable substrate forming a plurality of sensors and conductive traces, wherein the conductive traces connect each of the plurality of sensors to one or more conductive leads;
disposing a second stretchable conductive layer comprising a carbon composite atop the first conductive layer, wherein the second conductive layer is shaped to approximate the first conductive layer;
disposing an encapsulating layer about the conductive traces and about a perimeter of the sensors leaving a face of the sensors exposed;
disposing the substrate on the garment wherein the exposed face of the sensors remain exposed; and
disposing a thermoplastic layer about the substrate, the thermoplastic layer comprising a graphic print layer sized to approximate the shape of the first conductive layer.
8. The method of claim 7 , further comprising cutting the thermoplastic layer to approximate the shape of the first conductive layer.
9. The method of claim 7 , further comprising the step of cutting the substrate to approximate the shape of the second conductive layer after the thermoplastic layer is disposed about the substrate.