Hochberg H M
Arch Gynecol. 1978 Sep 1;226(1-2):79-84. doi: 10.1007/BF02116731.
Recent technical improvements in the ROCHE fetal pH monitor have simplified its use and increased the proportion of useful and accurate recordings. These improvements include electronic changes to reduce static electricity, a new spiral electrode which stabilizes the pH electrode in the fetal scalp, improved incision tools, simplified applicator tools, and a total system for reducing pH electrode handling during calibration.