Hwa-Liang Leo, MSa, Zhaoming He, PhDb, Jeffrey T. Ellis, PhDa, Ajit P

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Presentation transcript:

Microflow fields in the hinge region of the CarboMedics bileaflet mechanical heart valve design Hwa-Liang Leo, MSa, Zhaoming He, PhDb, Jeffrey T. Ellis, PhDa, Ajit P. Yoganathan, PhDb The Journal of Thoracic and Cardiovascular Surgery Volume 124, Issue 3, Pages 561-574 (September 2002) DOI: 10.1067/mtc.2002.125206 Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Leo, He, Ellis, Yoganathan (left to right) The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 1 Schematic of generic bileaflet mechanical heart valve showing housing, hinges, and leaflets. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 2 Various hinge geometry designs. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 3 Schematic of pulsatile loop. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 4 A, Mitral flow waveform as displayed on data-collection computer monitor. B, Schematic of CPHV 23-mm valve and hinge. C, Measurement sites at four different levels within the CPHV hinge. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 5 Hinge geometry as mapped by laser at primary flat level. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 6 CPHV 23-mm mitral hinge flow field at early systole, flat level. Arrows point in direction of mean velocity vectors and are color-coded by velocity magnitude (in meters per second) as given in key at top right. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 7 CPHV 23-mm mitral hinge flow field at mid systole, flat level. Arrows point in direction of mean velocity vectors and are color-coded by velocity magnitude (in meters per second) as given in key at top right. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 8 CPHV 23-mm mitral hinge flow field at early diastole, flat level. Arrows point in direction of mean velocity vectors and are color-coded by velocity magnitude (in meters per second) as given in key at top right. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 9 CPHV 23-mm mitral hinge flow field at peak diastole, flat level. Arrows point in direction of mean velocity vectors and are color-coded by velocity magnitude (in meters per second) as given in key at top right. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 10 CPHV 23-mm mitral hinge flow field at early systole, 190 μm above flat level. Arrows point in direction of mean velocity vectors and are color-coded by velocity magnitude (in meters per second) as given in key at top right. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 11 CPHV 23-mm mitral hinge flow field at mid systole, 190 μm above flat level. Arrows point in direction of mean velocity vectors and are color-coded by velocity magnitude (in meters per second) as given in key at top right. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 12 CPHV 23-mm mitral hinge flow field at early diastole, 190 μm above flat level. Arrows point in direction of mean velocity vectors and are color-coded by velocity magnitude (in meters per second) as given in key at top right. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 13 CPHV 23-mm mitral hinge flow field at mid diastole, 190 μm above flat level. Arrows point in direction of mean velocity vectors and are color-coded by velocity magnitude (in meters per second) as given in key at top right. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 14 CPHV 23-mm mitral hinge flow field at early systole, 390 μm above flat level. Arrows point in direction of mean velocity vectors and are color-coded by velocity magnitude (in meters per second) as given in key at top right. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 15 CPHV 23-mm mitral hinge flow field at mid systole, 390 μm above flat level. Arrows point in direction of mean velocity vectors and are color-coded by velocity magnitude (in meters per second) as given in key at top right. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 16 CPHV 23-mm mitral hinge flow field at mid diastole, 390 μm above flat level. Arrows point in direction of mean velocity vectors and are color-coded by velocity magnitude (in meters per second) as given in key at top right. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 17 CPHV 23-mm mitral hinge flow field at mid diastole, 1 mm below flat level. Arrows point in direction of mean velocity vectors and are color-coded by velocity magnitude (in meters per second) as given in key at top right. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 18 CPHV 23-mm mitral hinge flow field at peak diastole, 1 mm below flat level. Arrows point in direction of mean velocity vectors and are color-coded by velocity magnitude (in meters per second) as given in key at top right. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 19 CPHV 23-mm mitral hinge flow field at early systole, 1 mm below flat level. Arrows point in direction of mean velocity vectors and are color-coded by velocity magnitude (in meters per second) as given in key at top right. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 561-574DOI: (10.1067/mtc.2002.125206) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions