Freescale Semiconductor
Application Note
Document Number: AN4025
Rev. 1, 4/2010
Implementing a Glucometer and
Blood Pressure Monitor Medical
Devices
by:
Roxana Suarez and Carlos Casillas
RTAC Americas
Guadalajara
Mexico
Contents
1 Introduction...........................................................1
2 Glucometers and Diabetes.....................................2
3 Blood Glucose Monitor.........................................4
4 Blood Pressure Monitor and Hypertension...........6
5 Blood Pressure Monitor .......................................7
6 Technology and Medical Devices ......................11
7 LCD Driver.........................................................11
8 Bluetooth Connectivity.......................................17
9 Micro SD Card....................................................20
1 Introduction
This document describes a combinational medical device
designed to integrate both a low-end glucometer and a blood
pressure monitor. Nowadays, people suffering from chronic
degenerative diseases such as hypertension and diabetes can
develop a plurimetabolic syndrome.
This syndrome and both diseases in the same patient share some
risk factors such as obesity, hypercholesterolemia, and
atherosclerosis.
Medical combinational devices target this new market and not
only is power consumption a target, but bringing a better solution
for disease control.
This application note addresses medical devices implemented
with Freescale technology. By using the MC9S08LL16 this
device is energy efficient. It includes a Medical USB Stack
programmed into the MC9S08JS16 for communication and the
MPXV5050GP pressure sensor.
A glucometer is a device for measuring levels of glucose
concentration in the blood. This device is usually portable and
is used at home for monitoring diabetic-patients.
A blood pressure monitor is a device that detects systolic and
diastolic blood pressure, heart rate, and mean arterial pressure
for patients who suffer or are at risk of developing high blood
pressure.
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