منابع مشابه
A whole blood oximeter.
During cardiac catheterization it is an advantage to have an immediate indication of the oxygen content of blood samples withdrawn from the heart and great vessels while the catheter is still in situ. This is especially important in the more complex congenital defects as the procedure can then be modified if necessary in the light of the blood oxygen estimations. The present paper describes a w...
متن کاملA Pulse Oximeter
The objective of this work was to develop a prototype for a pulse oximeter. Given the necessity, in most medical interventions, to monitorize Oxygen saturation in peripheral blood (SpO2) a pulse oximeter is highly necessary in any operating room or intensive care unit. The electronic device was built recurring mostly to Integrated Circuit (IC) and its control was performed via a programmed micr...
متن کاملCalibration of a prototype NIRS oximeter against two commercial devices on a blood-lipid phantom.
In a blood-lipid liquid phantom the prototype near-infrared spectroscopy oximeter OxyPrem was calibrated against the INVOS® 5100c adult sensor in respect to values of regional tissue oxygen haemoglobin saturation (rStO2) for possible inclusion in the randomised clinical trial - SafeBoosC. In addition different commercial NIRS oximeters were compared on changing haemoglobin oxygen saturation and...
متن کاملSerum and whole blood Selenium in children with Atopic Dermatitis: A case-control study
Background and aim: Atopic dermatitis (AD) is a chronic, inflammatory, pruritic skin disease usually observed in patients with other allergies. Decreased selenium levels and improvement with selenium supplement are reported in AD. The aim of this study was to compare serum and whole blood selenium in children with AD and control group.Materials and Methods: In an age-se...
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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ژورنال
عنوان ژورنال: Heart
سال: 1957
ISSN: 1355-6037
DOI: 10.1136/hrt.19.4.516