Construction of a Wireless Fetal Pulse Oximeter
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منابع مشابه
Fetal transabdominal pulse oximeter studies using a hypoxic sheep model.
OBJECTIVE This study investigates the validity of transabdominal pulse oximetry using a sheep fetal hypoxia model with fetal arterial hemoglobin saturation. METHODS Four pregnant ewes were anaesthetized and cannulated through the brachial artery to measure direct arterial blood saturation, SaO(2). Next, the transabdominal pulse oximeter was used to measure indirect measurement of the arterial...
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The pulse oximeter is a popular instrument to monitor the arterial oxygen saturation (SPO2). Although a fingertip-type pulse oximeter is the mainstream one on the market at present, it is still inconvenient for long-term monitoring, in particular, with respect to motion. Therefore, the development of a wearable pulse oximeter, such as a finger base-type pulse oximeter, can effectively solve the...
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Multi-wavelength photometers, blood gas analysers and pulse oximeters are widely used to measure various oxygen-related quantities. The definitions of these quantities are not always correct. This paper gives insight in the various definitions for oxygen quantities. Furthermore, the possible influences of dyshaemoglobins and fetal haemoglobin on the accuracy of pulse oximetry are discussed. As ...
متن کاملAdapting new bedside instrumentation for computer-aided fetal monitoring using efficient tools for system reconfiguration
Incorporating of the new pulse oximetry feature into computer-aided fetal monitoring system requires a lot of modifications in hardware and software structure of the system. Since these modifications are fairly time-consuming, such a solution would be impracticable during preliminary testing and evaluation phases of new medical instrument. Therefore, at first we decided to build a prototype sys...
متن کاملA Three-Wavelength Pulse Oximeter for Carboxyhemoglobin Determination
Pulse oximetry measures the relative concentration of arterial oxygenated hemoglobin and reduced hemoglobin. This paper presents the design of a pulse oximeter, which measures the presence of a third substance, carboxyhemoglobin (HbCO), by unfiltered LEDs at 660 nm, 810 nm, and 940 nm. Background information is given on the theory of pulse oximetry. Theoretical approximations and calculations w...
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تاریخ انتشار 2009