Properties of a monopivot centrifugal blood pump manufactured by 3D printing

Masahiro Nishida, Takumi Negishi, Daisuke Sakota, Ryo Kosaka, Osamu Maruyama, Toru Hyakutake, Katsuyuki Kuwana, Takashi Yamane

Abstract

An impeller the same geometry as the impeller of a commercial monopivot cardiopulmonary bypass pump was manufactured using 3D printing. The 3D-printed impeller was integrated into the pump casing of the commercially available pump to form a 3D-printed pump model. The surface roughness of the impeller, the hydraulic performance, the axial displacement of the rotating impeller, and the hemolytic properties of the 3D-printed model were measured and compared with those of the commercially available model. Although the surface roughness of the 3D-printed model was significantly larger than that of the commercially available model, the hydraulic performance of the two models almost coincided. The hemolysis level of the 3D-printed model roughly coincided with that of the commercially available model under low-pressure head conditions, but increased greatly under high-pressure head conditions, as a result of the narrow gap between the rotating impeller and the pump casing. The gap became narrow under high-pressure head conditions, because the axial thrust applied to the impeller increased with increasing impeller rotational speed. Moreover, the axial displacement of the rotating impeller was twice that of the commercially available model, confirming that the elastic deformation of the 3D-printed impeller was larger than that of the commercially available impeller. These results suggest that trial models manufactured by 3D printing can reproduce the hydraulic performance of the commercial product. However, both the surface roughness and the deformation of the trial models must be considered to precisely evaluate the hemolytic properties of the model.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalJournal of Artificial Organs
DOIs
StateAccepted/In press - 2016 Jul 1

Fingerprint

Pumps
Printing
Surface roughness
Hydraulics
Elastic deformation
Blood
Geometry

Keywords

  • 3D printing
  • Hemolysis
  • Pump performance
  • Rotary blood pump
  • Surface roughness

ASJC Scopus subject areas

  • Biomaterials
  • Biomedical Engineering
  • Cardiology and Cardiovascular Medicine
  • Medicine (miscellaneous)

Cite this

Nishida, M., Negishi, T., Sakota, D., Kosaka, R., Maruyama, O., Hyakutake, T., ... Yamane, T. (2016). Properties of a monopivot centrifugal blood pump manufactured by 3D printing. Journal of Artificial Organs, 1-8. DOI: 10.1007/s10047-016-0914-9

Properties of a monopivot centrifugal blood pump manufactured by 3D printing. / Nishida, Masahiro; Negishi, Takumi; Sakota, Daisuke; Kosaka, Ryo; Maruyama, Osamu; Hyakutake, Toru; Kuwana, Katsuyuki; Yamane, Takashi.

In: Journal of Artificial Organs, 01.07.2016, p. 1-8.

Research output: Contribution to journalArticle

Nishida, M, Negishi, T, Sakota, D, Kosaka, R, Maruyama, O, Hyakutake, T, Kuwana, K & Yamane, T 2016, 'Properties of a monopivot centrifugal blood pump manufactured by 3D printing' Journal of Artificial Organs, pp. 1-8. DOI: 10.1007/s10047-016-0914-9
Nishida M, Negishi T, Sakota D, Kosaka R, Maruyama O, Hyakutake T et al. Properties of a monopivot centrifugal blood pump manufactured by 3D printing. Journal of Artificial Organs. 2016 Jul 1;1-8. Available from, DOI: 10.1007/s10047-016-0914-9

Nishida, Masahiro; Negishi, Takumi; Sakota, Daisuke; Kosaka, Ryo; Maruyama, Osamu; Hyakutake, Toru; Kuwana, Katsuyuki; Yamane, Takashi / Properties of a monopivot centrifugal blood pump manufactured by 3D printing.

In: Journal of Artificial Organs, 01.07.2016, p. 1-8.

Research output: Contribution to journalArticle

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