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Method and device for determining the body temperature of a patient

A body temperature, patient technology, applied in the application, drug equipment, medical science and other directions, can solve the problem of purchasing cost and other problems

Active Publication Date: 2019-06-18
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The sensor used for this is available as an additional part, which entails additional procurement costs and additional effort when inserting the hose system into the sensor head

Method used

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  • Method and device for determining the body temperature of a patient
  • Method and device for determining the body temperature of a patient
  • Method and device for determining the body temperature of a patient

Examples

Experimental program
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Embodiment Construction

[0090] figure 1 It shows a comparison of a calculated value and a measured value for the patient's arterial blood temperature based on 5000 values ​​or a data basis of treatment at the start of dialysis. Blood flow Q b 350ml / min to 450ml / min, and the dialysate flow rate Q d It is 500ml / min to 700ml / min. The value of D is calculated according to formula (5), where f=1.1.

[0091] figure 1 It illustrates the good correlation between the calculation of the dialysate side and the measurement on the blood side of the temperature according to the present invention, where the standard deviation of the difference between the two methods is 0.19°C. The system deviation can be obtained by using the coefficient determined from the regression according to the formula T art =aT bi +b correction to eliminate.

[0092] In addition to the automatic registration and compilation of body temperature at the beginning of treatment, alternatively or in addition, it is also possible to automatically...

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PUM

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Abstract

The present invention relates to a method for determining the body temperature, or a temperature correlated therewith, of a patient attached to an extracorporeal blood circuit, wherein the extracorporeal blood circuit has a heat exchanger which has blood running through it on one side and has a heat transfer medium running through it on the other side, wherein the input-side temperature (Tdi) of the heat transfer medium at the input of the heat exchanger and the output-side temperature (Tdo) of the heat transfer medium at the output of the heat exchanger and the volumetric flow of the heat transfer medium (Qd) is measured, and the input-side temperature (Tbi) of the blood at the input of the heat exchanger is determined according to the equation Tbi = Tdi + (Qd / D) (Tdo - Tdi), wherein thevariable D is a variable that is characteristic of the heat transfer though the heat exchanger.

Description

Technical field [0001] The present invention relates to a method and device for determining the body temperature of a patient connected to an extracorporeal blood circulation circuit or a temperature related thereto, wherein the extracorporeal blood circulation circuit has a heat exchanger, and the heat exchanger The blood flows through on one side and the heat transfer medium flows through on the other side. Background technique [0002] It is known from the prior art to measure the body temperature of a dialysis patient before and during dialysis treatment. The body temperature is an important indicator of the patient's physiological state during, for example, hemodialysis treatment or hemodiafiltration treatment. [0003] The patient's body temperature before treatment is basically determined by his biological rhythm, and may increase due to diseases such as inflammation. [0004] Dialysis treatment itself also affects body temperature due to different factors. Therefore, the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/16A61B5/145A61M1/36
CPCA61M2205/3368A61M2205/366A61M2230/50A61M1/1605A61M1/1607A61M1/1609A61M1/1664A61M1/3609A61B5/746A61B5/01A61B5/6866
Inventor 安德烈亚斯·迈尔霍费尔
Owner FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH