Method for simultaneously making a plurality of acoustic signal sensor elements
First Claim
1. A method for simultaneously making a plurality of acoustic signal sensor elements, comprising the steps of:
- providing a plurality of flex cables and equidistantly positioning the flex cables along a working surface, each flex cable having a plurality of conductors thereon;
configuring each flex cable such that all but a first one of the conductors are folded upward;
disposing a first electrically conductive adhesive layer over a portion of the first one of the conductors of each flex cable;
disposing a first strip of piezoelectric film over the first electrically conductive adhesive layer;
configuring each flex cable such that a second one of the conductors is disposed over the first strip of piezoelectric film;
disposing a second electrically conductive adhesive layer over a portion of the second one of the conductors of each flex cable;
disposing a second strip of piezoelectric film over the second electrically conductive adhesive layer;
configuring each flex such that a portion of a third one of the conductors of each flex cable is disposed over the second strip of piezoelectric film;
disposing a third electrically conductive adhesive layer over said portion of the third one of the conductors;
disposing a metallic strip over the third electrically conductive adhesive layer and substantially the entire second strip of piezoelectric film;
curing the adhesive layers to form a laminate assembly;
providing a template having indicia therein that functions as a cutting guide; and
cutting the laminate assembly according to the indicia to form a plurality of sensor elements.
1 Assignment
0 Petitions
Accused Products
Abstract
A fetal heart monitoring system preferably comprising a backing plate having a generally concave front surface and a generally convex back surface, and at least one sensor element attached to the concave front surface for acquiring acoustic fetal heart signals produced by a fetus within a body. The sensor element has a shape that conforms to the generally concave back surface of the backing plate. In one embodiment, the at least one sensor element comprises an inner sensor, and a plurality of outer sensors surrounding the inner sensor. The fetal heart monitoring system can further comprise a web belt, and a web belt guide movably attached to the web belt. The web belt guide being is to the convex back surface of the backing plate.
35 Citations
27 Claims
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1. A method for simultaneously making a plurality of acoustic signal sensor elements, comprising the steps of:
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providing a plurality of flex cables and equidistantly positioning the flex cables along a working surface, each flex cable having a plurality of conductors thereon; configuring each flex cable such that all but a first one of the conductors are folded upward; disposing a first electrically conductive adhesive layer over a portion of the first one of the conductors of each flex cable; disposing a first strip of piezoelectric film over the first electrically conductive adhesive layer; configuring each flex cable such that a second one of the conductors is disposed over the first strip of piezoelectric film; disposing a second electrically conductive adhesive layer over a portion of the second one of the conductors of each flex cable; disposing a second strip of piezoelectric film over the second electrically conductive adhesive layer; configuring each flex such that a portion of a third one of the conductors of each flex cable is disposed over the second strip of piezoelectric film; disposing a third electrically conductive adhesive layer over said portion of the third one of the conductors; disposing a metallic strip over the third electrically conductive adhesive layer and substantially the entire second strip of piezoelectric film; curing the adhesive layers to form a laminate assembly; providing a template having indicia therein that functions as a cutting guide; and cutting the laminate assembly according to the indicia to form a plurality of sensor elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for simultaneously making a plurality of acoustic signal sensor elements, comprising the steps of:
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providing a plurality of flex cables and equidistantly positioning the flex cables along a working surface, each flex cable having a plurality of conductors thereon; configuring each flex cable such all but a first one of the conductors are folded upward; disposing a first electrically conductive adhesive layer over a portion of the first one of the conductors of each flex cable; disposing a first strip of piezoelectric film over the first electrically conductive adhesive layer; configuring each flex cable such that a second one of the conductors is disposed over the first strip of piezoelectric film; disposing a second electrically conductive adhesive layer over a portion of the second one of the conductors of each flex cable; disposing a second strip of piezoelectric film over the second electrically conductive adhesive layer; configuring each flex cable such that a portion of a third one of the conductors of each flex cable is disposed over the second strip of piezoelectric film; disposing a third electrically conductive adhesive layer over said portion of the third one of the conductors; disposing a metallic strip over the third electrically conductive adhesive layer and substantially the entire second strip of piezoelectric film; curing the adhesive layers to form a laminate assembly; and cutting the laminate assembly to form a plurality of sensor elements. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification