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1. (WO2013145135) VENTRICULAR ASSIST DEVICE SYSTEM

Pub. No.:    WO/2013/145135    International Application No.:    PCT/JP2012/058000
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Wed Mar 28 01:59:59 CEST 2012
IPC: A61M 1/10
A61M 1/12
Applicants: SUN MEDICAL TECHNOLOGY RESEARCH CORPORATION
株式会社サンメディカル技術研究所
MIYAKOSHI, Takayuki
宮越 貴之
KOBAYASHI, Shinji
小林 信治
KANEBAKO, Hideki
金箱 秀樹
KITANO, Tomoya
北野 智哉
Inventors: MIYAKOSHI, Takayuki
宮越 貴之
KOBAYASHI, Shinji
小林 信治
KANEBAKO, Hideki
金箱 秀樹
KITANO, Tomoya
北野 智哉
Title: VENTRICULAR ASSIST DEVICE SYSTEM
Abstract:
This ventricular assist device system is equipped with: a ventricular assist device pump provided with a rotating part having an impeller, and a housing for accommodating the rotating part; an introduction-side artificial vessel for introducing a fluid into the ventricular assist device pump; and a discharge-side artificial vessel for discharging a fluid from the ventricular assist device pump. The ventricular assist device system is characterized in that the difference between the maximum and minimum flow of fluid, when the ventricular assist device system is connected to a fluid-discharge source for discharging a fluid while increasing/decreasing the flow at fixed periods, is 40% or more of the difference between the maximum and minimum flow of fluid when the ventricular assist device system is not connected to the fluid-discharge source. This ventricular assist device system makes it possible to suppress the degree to which the health of a user deteriorates during long-term use, in comparison to conventional ventricular assist device systems.