抄録
Tensile properties of blood pump diaphragms made from a segmented polyether polyurethane (Toyobo TM5) were studied after implanting in goats for variable periods of time up to 72 days. The implantation decreased the tensile strength and ultimate elongation at break, while the elastic modulus increased very slightly. These changes in the strength and ductility were primarily caused by the contact of material with blood rather than by the mechanical fatigue of material. Mechanical stability was greatly improved by removing residual oligomers from the material by a refining procedure. The refined polyurethane has characteristics favourable for blood pump applications.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 82-88 |
| ページ数 | 7 |
| ジャーナル | Biomaterials |
| 巻 | 6 |
| 発行部数 | 2 |
| DOI | |
| 出版物ステータス | Published - 1985 |
| 外部発表 | Yes |
Fingerprint
ASJC Scopus subject areas
- Biotechnology
- Bioengineering
- Biomedical Engineering
これを引用
Effects of implantation on the mechanical properties of the Polyurethane diaphragm of left ventricular assist devices. / Hayashi, Kozaburo; Matsuda, Takehisa; Takano, Hisateru; Umezu, Mitsuo; Taenaka, Yoshiyuki; Nakamura, Takao.
：: Biomaterials, 巻 6, 番号 2, 1985, p. 82-88.研究成果: Article
}
TY - JOUR
T1 - Effects of implantation on the mechanical properties of the Polyurethane diaphragm of left ventricular assist devices
AU - Hayashi, Kozaburo
AU - Matsuda, Takehisa
AU - Takano, Hisateru
AU - Umezu, Mitsuo
AU - Taenaka, Yoshiyuki
AU - Nakamura, Takao
PY - 1985
Y1 - 1985
N2 - Tensile properties of blood pump diaphragms made from a segmented polyether polyurethane (Toyobo TM5) were studied after implanting in goats for variable periods of time up to 72 days. The implantation decreased the tensile strength and ultimate elongation at break, while the elastic modulus increased very slightly. These changes in the strength and ductility were primarily caused by the contact of material with blood rather than by the mechanical fatigue of material. Mechanical stability was greatly improved by removing residual oligomers from the material by a refining procedure. The refined polyurethane has characteristics favourable for blood pump applications.
AB - Tensile properties of blood pump diaphragms made from a segmented polyether polyurethane (Toyobo TM5) were studied after implanting in goats for variable periods of time up to 72 days. The implantation decreased the tensile strength and ultimate elongation at break, while the elastic modulus increased very slightly. These changes in the strength and ductility were primarily caused by the contact of material with blood rather than by the mechanical fatigue of material. Mechanical stability was greatly improved by removing residual oligomers from the material by a refining procedure. The refined polyurethane has characteristics favourable for blood pump applications.
KW - implantation
KW - in vitro fatigue test
KW - left ventricular assist device
KW - Polymers
KW - Segmented polyether polyurethane
KW - tensile properties
UR - http://www.scopus.com/inward/record.url?scp=0021989691&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0021989691&partnerID=8YFLogxK
U2 - 10.1016/0142-9612(85)90068-7
DO - 10.1016/0142-9612(85)90068-7
M3 - Article
C2 - 4005358
AN - SCOPUS:0021989691
VL - 6
SP - 82
EP - 88
JO - Biomaterials
JF - Biomaterials
SN - 0142-9612
IS - 2
ER -