Ryo Kosaka
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Explore the profile of Ryo Kosaka including associated specialties, affiliations and a list of published articles.
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68
Citations
183
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Recent Articles
11.
Yamane T, Adachi K, Kosaka R, Maruyama O, Nishida M
J Artif Organs
. 2020 Nov;
24(2):120-125.
PMID: 33136218
A suitable index is needed for hemolysis tests that use low-flow pumps, such as pediatric blood pumps or blood purification pumps. To create such an index, the present study investigates...
12.
Sakota D, Kondo K, Kosaka R, Nishida M, Maruyama O
J Artif Organs
. 2020 Oct;
24(2):126-134.
PMID: 33113050
This work investigates the plasma skimming effect in a spiral groove bearing within a hydrodynamically levitated centrifugal blood pump when working with human blood having a hematocrit value from 0...
13.
Sakota D, Fujiwara T, Ohuchi K, Kuwana K, Yamazaki H, Kosaka R, et al.
Biomed Opt Express
. 2018 Jan;
9(1):190-201.
PMID: 29359096
We developed an optical thrombus sensor for a monopivot extracorporeal centrifugal blood pump. In this study, we investigated its quantitative performance for thrombus detection in acute animal experiments of left...
14.
Fujiwara T, Sakota D, Ohuchi K, Endo S, Tahara T, Murashige T, et al.
Artif Organs
. 2017 Mar;
41(10):893-903.
PMID: 28321882
Complications due to pump thrombus remain the weak point of mechanical circulatory support (MCS), such as the use of a left ventricular assist device (LVAD) or extracorporeal membrane oxygenation, leading...
15.
Kawakami K, Sakota D, Kosaka R, Nishida M, Kawaguchi Y, Maruyama O
Annu Int Conf IEEE Eng Med Biol Soc
. 2017 Mar;
2016:4309-4312.
PMID: 28269233
Thrombus formation in blood pumps is a major problem. It has been reported that the shear rate is closely related to thrombus formation in blood pumps; however, the mechanism of...
16.
Wang X, He F, Li X, Ito A, Sogo Y, Maruyama O, et al.
Sci Technol Adv Mater
. 2016 Nov;
14(3):035002.
PMID: 27877575
A tissue-engineered endothelial layer was prepared by culturing endothelial cells on a fibroblast growth factor-2 (FGF-2)-l-ascorbic acid phosphate magnesium salt -hydrate (AsMg)-apatite (Ap) coated titanium plate. The FGF-2-AsMg-Ap coated Ti...
17.
Nishida M, Kosaka R, Maruyama O, Yamane T, Shirasu A, Tatsumi E, et al.
J Artif Organs
. 2016 Nov;
20(1):26-33.
PMID: 27815718
A long-term durability test was conducted on a newly developed axial-flow ventricular assist device (VAD) with hydrodynamic bearings. The mock circulatory loop consisted of a diaphragm pump with a mechanical...
18.
Murashige T, Sakota D, Kosaka R, Nishida M, Kawaguchi Y, Yamane T, et al.
Artif Organs
. 2016 Sep;
40(9):856-66.
PMID: 27645396
Plasma skimming is a phenomenon in which discharge hematocrit is lower than feed hematocrit in microvessels. Plasma skimming has been investigated at a bearing gap in a spiral groove bearing...
19.
Nishida M, Negishi T, Sakota D, Kosaka R, Maruyama O, Hyakutake T, et al.
J Artif Organs
. 2016 Jul;
19(4):322-329.
PMID: 27370698
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...
20.
Maruyama O, Kosaka R, Nishida M, Yamane T, Tatsumi E, Taenaka Y
Int J Artif Organs
. 2016 May;
39(4):194-9.
PMID: 27199137
In vitro antithrombogenic testing with mock circulation is a useful type of pre-evaluation in ex vivo testing of mechanical assist devices. For effective in vitro testing, we have been developing...