Patent attributes
A uterine contraction sensor device for non-invasively monitoring uterine contractions passing through an abdomen includes a base including a top wall, a bottom wall and a perimeter wall extending between the top wall and the bottom wall to define an interior space. The base is positionable on an abdomen. A tube is positioned in the interior space of the base and is coupled to the bottom wall. The tube is filled with a low viscosity fluid. A first end of the tube is closed to inhibit the low viscosity fluid exiting the first end. A second end of the tube extends upwardly from the top wall to be engage by a fetal monitor. A diaphragm is coupled to the tube adjacent the second end of the tube and is engaged by the fetal monitor to transfer vibrations passing through the low viscosity fluid to the fetal monitor.