Gestational computer

A hand-held gestational microprocessor comprising

• a microprocessor programmed to receive input signals representing the current date and at least one parameter selected from the group consisting of the date of the first day of the last menstrual period, estimated gestation age, conception date, estimated date of confinement by ultrasound analysis, and estimated fetal weight, and producing output signals representing the value of at least one parameter selected from the group consisting of estimated gestation age, estimated date of confinement, conception date, estimated fetal weight, and the percentile of the estimated fetal weight for the estimated gestation age,
• display means responsive to said output signals for producing displays of the parameter values represented by said output signals, and
• a memory connected to said microprocessor for storing data representing a fetal weight for each of a range of different gestation ages,
• said microprocessor being programmed to retrieve and display the fetal weight corresponding to the displayed estimated gestation age.

A hand-held gestational microprocessor comprising a microprocessor programmed to receive input signals representing the current

• date and at least one parameter selected from the group consisting of the date of the first day of the last menstrual period, estimated gestation age, conception date, estimated date of confinement by ultrasound analysis, and estimated fetal weight, and producing output signals representing the value of at least one parameter selected from the group consisting of estimated gestation age, estimated date of confinement, conception date, estimated fetal weight, and the percentile of the estimated fetal weight for the estimated gestation age,
• display means responsive to said output signals for producing displays of the parameter values represented by said output signals,
• a memory connected to said microprocessor for storing data indicating whether the computed estimated gestation age, or the gestation age estimated from ultrasound analysis, is preferred for each of a range of combinations of values of the two estimated ages, and
• said microprocessor being programmed to retrieve and display the estimated gestation age preferred for the current values of the two estimated ages.

A hand-held gestational microprocessor comprising

• a microprocessor programmed to receive input signals representing the current date and at least one parameter selected from the group consisting of the date of the first day of the last menstrual period, estimated gestation age, conception date, estimated date of confinement by ultrasound analysis, and estimated fetal weight, and producing output signals representing the value of at least one parameter selected from the group consisting of estimated gestation age, estimated date of confinement, conception date, estimated fetal weight, and the percentile of the estimated fetal weight for the estimated gestation age,
• display means responsive to said output signals for producing displays of the parameter values represented by said output signals,
• a memory connected to said microprocessor for storing data representing the percentile number for each of a range of different combinations of fetal weight and gestation age, and
• said microprocessor being programmed to retrieve and display the percentile number corresponding to the displayed estimated fetal weight and estimated gestation age.