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Overview
4 Chapter 1 General Information
Overview
This guide describes three different Series 50 Fetal Monitor models:
M1351A Single Ultrasound model (with US and Toco channels).
M1351A Dual Ultrasound Twins model (with US1, Toco and US2 channels).
M1353A model (with US1, Toco and US2/ECG channels).
The M1351A single and double ultrasound model is for external monitoring of FHR and
uterine activity in the antenatal period from early gestation (approximately 20 to 25 weeks)
to term. The M1353A is for monitoring FHR, including twins, maternal heart rate and
uterine activity. FHR and uterine activity can be monitored externally in the antenatal
period from early gestation to term, and internally throughout labor and delivery. The basic
capabilities of the three models are summarized in the table below.
Table 1-1 Fetal Monitor Parameters
Parameter
M1351A
Single
M1351A
Twin
M1353A
Monitor FHR using ultrasound Yes Yes Yes
Monitor twin FHRs using ultrasound No Yes Yes
Monitor twins using DECG and ultrasound No No Yes
Monitor FHR using DECG No No Yes
Monitor uterine activity using Toco ext Yes Yes Yes
Monitor IUP No No Yes
Monitor maternal heart rate No No Yes
Detect fetal movements
1
1. May be ordered as an option for all models
Yes Yes Yes
Mark events Yes Yes Yes
Record nursing notes
1
Yes Yes Yes
Transmission of fetal trace information
1
Yes Yes Yes
Fetal trace memory
1
Yes Yes Yes
Interfacing to fetal pulse oximetry Yes Yes Yes