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Rates per language pair: French to German - Standard rate: 0.10 EUR per word / 25 EUR per hour English to German - Standard rate: 0.10 EUR per word / 25 EUR per hour
Pulse oximeters provide a spectrophotometric assessment of functional arterial Hemoglobin oxygenation (SpO2).
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Pulse oximetry is based on the following two principles.
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First, hemoglobin (Hb) and oxygenated hemoglobin (HbO2) differ in their absorption of red and infrared light.
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Second, the volume of arterial blood in tissue (and therefore, light absorption by the hemoglobin) changes during the pulse.
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Therefore, a pulse oximeter passes red and infrared light into an arteriolar bed, measures changes in light absorption, and determines SpO2.
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How Pulse Oximeters Work
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Pulse oximeter sensors have red and infrared low voltage light-emitting diodes (LEDs) which serve as light sources.
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The emitted light is transmitted through the tissue, and then detected by the photodetector where it is then sent to the microprocessor of the pulse oximeter (Fig. 21).
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All constituents of the human body, venous and arterial blood and tissue absorb light (Fig. 22).
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The pulsating of arterial blood results in changes in the absorption due to added hemoglobin (Hb) and oxygenated hemoglobin (HbO2) in the path of the light.
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Since (HbO2 ) and (Hb) absorb light to varying degrees, this varying absorption is translated into plethysmographic waveforms at both red and infrared wavelengths (Fig. 23).
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The relationship of red and infrared plethysmographic signal amplitude can be directly related to arterial oxygen saturation.
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For example, when the plethysmographic amplitude at 660nm and 910nm are equal and the ratio R/IR=1, the SpO2 is approximately 85% (Fig. 24).
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FIGURE 23: Varying Absorption by (HbO2)
Translation - German FUNKTIONSWEISE
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ÜBERSICHT ÜBER DIE OXYMETRIE
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Die Pulsoxymetrie ermöglicht eine spektrophotometrische Messung der funktionalen arteriellen Hämoglobin-Oxygenation (SpO2).
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Die Pulsoxymetrie basiert auf folgenden zwei Prinzipien:
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Erstens unterscheiden sich Hämoglobin (Hb) und oxygenisiertes Hämoglobin (HbO2) in ihrer Absorptionsfähigkeit von Rot- und Infrarotlicht.
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Zweitens verändert sich während des Pulsus die Menge des arteriellen Blutes im Gewebe (und somit auch die Lichtabsorption durch das Hämoglobin).
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Somit schickt ein Oxymeter Rot- und Infrarotlicht in einen arteriellen Fluss, misst die Änderungen der Lichtabsorption und ermittelt SpO2.
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So funktioniert der Oxymeter
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Pulsoxymeter verfügen über Rot- und Infrarotdioden (Niederspannungs- und lichtabgebende LEDs), die als Lichtquelle herhalten.
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Das abgegebene Licht scheint durch das Gewebe und wird dann vom Fotodetektor aufgefangen, von dem das Signal dann an einen Mikroprozessor des Pulsoxymeters gesendet wird (Abb. 21).
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Alle Bestandteile des menschlichen Körpers, venöses und arterielles Blut sowie Gewebe, absorbieren Licht (Abb. 22).
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Das Pulsieren des arteriellen Blutes ergibt Veränderungen in der Absorption, da Hämoglobin (Hb) und oxygenisiertes Hämoglobin (HbO2) den Lichtstrahl durchwandern.
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Da (HbO2) und (Hb) Licht in unterschiedlichen Farbtönen absorbieren, wird diese abweichende Absorption in plethysmografische Kurvenformen in Rot- und Infrarotwellenlänge wiedergegeben (Abb. 23).
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Die Beziehung zwischen der roten und infraroten plethysmografischen Signalamplitude kann in direkten Zusammenhang mit Sauerstoffsättigung des Hämoglobins gebracht werden
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Wenn die plethysmografische Amplitude zum Beispiel bei 660 nm und 910 nm gleich ist und die Ratio ist R/IR=1, liegt die SpO2 bei ungefähr 85 % (Abb. 24).
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Abbild 23: Unterschiedliche Absorption bei (HbO2)
English to German: Common Labelling
Source text - English Metforminhydrochloride
Each tablet contains 500 mg metforminhydrochloride equivalent to 390 mg metformin
I was born in Germany and I am living know in France since 1992. Translation is a part of my life since the early childhood so it was just a matter of time since I became a professional translator.
I am translating from English and French into German.
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