Monitoring device and method for detection of premature labor

Details Monitoring device and method for detection of premature labor Monitoring device and method for detection of premature labor

1993-10-29

1995-04-18

Rimell, Sam

Surgery

Truss

Pad

128774, A61B 500

Patent

active

054069610

ABSTRACT:
A pessary senses the dilation and effacement of the cervix of patients at risk for premature labor by sensing changes in the energy levels transmitted through the cervical tissue. In one embodiment, light is utilized to periodically illuminate tissues adjacent the cervix, the light being detected serving as an indicator of the onset of labor. The detection of a condition of premature labor is transmitted to a patient monitor through either conductors extending out of the body and into the monitor, or via electromagnetic transmissions (radio) sent from the pessary to a receiver associated with the patient monitor. Interpretation of the energy detected may occur either within the pessary or within the patient monitor.

REFERENCES:
patent: 3474776 (1969-10-01), O'Brien
patent: 4909263 (1990-03-01), Norris
patent: 4942882 (1990-07-01), Bellinson
patent: 4966101 (1990-10-01), Wallace et al.
patent: 4989615 (1991-02-01), Hochberg
patent: 5154177 (1992-10-01), Elsman et al.
patent: 5167237 (1992-12-01), Rabin et al.

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