Patent ID: 7753860

Claim:
A uterine contraction sensor device for being connected to a fetal monitor to monitor uterine contractions, said device comprising: a base including a top wall, a bottom wall and a perimeter wall extending between said top wall and said bottom wall to define an interior space; a tube being positioned in said interior space of said base and being coupled to said bottom wall, said tube filled with a low viscosity liquid, a first end of said tube being closed to inhibit said low viscosity liquid exiting said first end, a second end of said tube extending upwardly from said top wall to permit said second end to be engaged by the fetal monitor, said tube including a lower portion extending through said bottom wall to permit said tube to directly abut against an abdomen when said base is on said abdomen, said tube forming a serpentine pattern extending through said bottom wall; and a diaphragm being coupled to said tube adjacent said second end of the tube, said diaphragm being engaged by the fetal monitor to transfer vibrations passing through said low viscosity liquid to the fetal monitor.