Production and functional testing of polyurethane valve of the pediatric Luo-Ye pump / 中国组织工程研究
Chinese Journal of Tissue Engineering Research
;
(53): 5607-5612, 2013.
Artigo
em Chinês
| WPRIM
| ID: wpr-433732
ABSTRACT
BACKGROUND:
The mechanical valves used in the adult Luo-Ye pump have a large size and great destruction to blood, which are not suitable for infant ventricular assist pump. Therefore, designing and producing a high molecular valve with smal size and low incidence of thrombosis is a research hotspot.OBJECTIVE:
To design and produce a valve of 20 mL infant Luo-Ye pump, and to test its basic functions and fatigue properties.METHODS:
The size and shape of valve was designed with MASTERCAM software, polyurethane valve was obtained through producing the valve model and plastic injection;the static leakage, pressure drop and fatigue resistance of polyurethane valve were tested according to the ISO5840 requirements. RESULTS ANDCONCLUSION:
The polyurethane trefoil valve was produced, but the failure rate of plastic injection was high;the basic function of the trefoil valve met the ISO5840 requirements bascial y;after continuously operated 1.0×107 times, stroke volume of 20 mL Luo-Ye pump was changed 5.2%, and two polyurethane valves and valve leaflets did not change and damage. Polyurethane trefoil valve was designed and produced successful y;polyurethane valves could meet the needs of 20 mL Luo-Ye pump, which already have the ability to clinical trials.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Tissue Engineering Research
Ano de publicação:
2013
Tipo de documento:
Artigo
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