Pump driving unit for driving a pump used for supporting or substitution of cardiac function
AssigneeAisin Seiki Kabushiki Kaisha
InventorsKinji Tsukahara, Hideki Wakui, Katsuya Tsuchimoto, Akira Suzuki
Life of this patent
Estimating the term…
Abstract
In a small sized pump driving unit, a fluid pump is used for driving the pump for supporting of substituting of cardiac function. The fluid pump can generates pressure fluctuations that can generate pulsation of the pump for supporting or substituting of cardiac function and produces sufficient performance to drive the pump unit.
Claims17
A pump driving unit for driving a pump used for supporting or substitution of cardiac function, comprising a fluid pump which is driving source of the pump used for supporting or substitution of cardiac function.
A pump driving unit for driving a pump used for supporting or substituting of cardiac function comprising:
- an isolator forming therein a first space, and a second space divided from the first space by a flexible member, said second space connected to the pump used for supporting or substituting of cardiac function, wherein a fluid pump is connected to the first space so as to supply a fluid media therein to the first space or to suck a fluid media in the first space;
- and
- a control unit adapted for controlling an operation of the fluid pump.
A pump driving unit for driving a pump used for supporting or substitution of cardiac function, comprising:
- a bidirectional fluid pump;
- and
- means for operating the pump used for supporting or substitution of cardiac function based on a speed and direction of operation of said fluid pump.
A pump driving unit for driving a pump used for supporting or substitution of cardiac function, comprising:
- a bidirectional fluid pump driven by a motor;
- a fluid isolator having two spaces separated by a diaphragm, one of said spaces receiving a fluid pressure from said fluid pump, the other of said spaces being fluidically connected to the pump used for supporting or substitution of cardiac function;
- and
- a controller which controls a speed and direction of operation of the motor driving said fluid pump based on a fluid pressure in at least one of said spaces.
In a pump driving unit for driving a pump used for supporting or substitution of cardiac function, the pump driving unit comprising a bidirectional fluid pump driven by a motor, and a fluid isolator having two spaces separated by a diaphragm, one of said spaces receiving a fluid pressure from said fluid pump, the other of said spaces being fluidically connected to the pump used for supporting or substitution of cardiac function, a method for driving the pump used for supporting or substitution of cardiac function, the method comprising the steps of:
- determining a fluid pressure in at least one of said spaces;
- and
- controlling a speed and direction of operation of the motor driving said fluid pump based on the determined fluid pressure.
Dependencies are inferred from the claim text.