Operating point analysis of a CHANDLER-loop-system for dynamic in vitro hemocompatibility testing

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • N. Peschke
  • B. Krolitzki
  • B. Glasmacher

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Details

OriginalspracheEnglisch
Seiten (von - bis)S88-S90
FachzeitschriftBiomedizinische Technik
Jahrgang59
PublikationsstatusVeröffentlicht - 1 Okt. 2014
Veranstaltung48th DGBMT annual conference - Hannover
Dauer: 8 Okt. 201410 Okt. 2014

Abstract

CHANDLER-loop-systems provide a way to generate gravity-driven blood flow for in vitro-hemocompatibility testing within partially filled tube rings. There are several limitations for the use of CHANDLER-loop-systems regarding background activation and stationary flow conditions. From those limitations, rollover point for the displaced blood column, resonance frequency of the blood column, blood film transport and resulting blood-air-interface were determined crucial and thus examined. The tube material, loop diameter, tube inner diameter and filling volume were chosen according to previous experiments. Experimental flow analysis at different flow rates and tube diameters were carried out using Xrays for visualization of the phase boundary between blood and entrapped air. Rollover point was detected for a range of parameter combinations (flow rate, tube diameter, loop diameter, temperature/viscosity). An oscillating secondary motion of the blood column inside the device was observed. Resonance frequency and blood transport along the tube walls were calculated and discussed. A set of diagrams for instant experimental design were compiled from the data collected. The results of this bachelor's thesis provide guidelines for selecting a suitable operating point for CHANDLER-loopsystems adapted to particular experimental settings and objectives.

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Operating point analysis of a CHANDLER-loop-system for dynamic in vitro hemocompatibility testing. / Peschke, N.; Krolitzki, B.; Glasmacher, B.
in: Biomedizinische Technik, Jahrgang 59, 01.10.2014, S. S88-S90.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Peschke, N. ; Krolitzki, B. ; Glasmacher, B. / Operating point analysis of a CHANDLER-loop-system for dynamic in vitro hemocompatibility testing. in: Biomedizinische Technik. 2014 ; Jahrgang 59. S. S88-S90.
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