Push-pull operated pump for a microfluidic system
OwnerHerbert Harttiginventor
Life of this patent
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Abstract
The present invention generally relates to a micropump for the conveyance of fluidic media at low flow rates. The micropump comprises at least one flow duct. The flow duct also has at least three pinch areas. The micropump also includes at least three actuators for the pumping of fluidic media. The actuators are configured and arranged in such a way that a force can be exerted on the flow duct by at least one of the actuators in each of the three pinch regions. This results in the flow duct being narrowed or completely closed at the pinched points and the fluid which is located in this region is completely or partially displaced from this pinched region.
Claims60
A micropump for pumping of a fluidic media, the micropump comprising:
- at least one flow duct having at least one wall body;
- at least one pinch region in the at least one flow duct;
- and
- at least one actuator, wherein the at least one actuator is capable of exerting force in the at least one pinch region such that a cross-sectional area of the at least one flow duct being capable of being varied in the at least one pinch regions by the force exerted by the at least one actuator.
A micropump for pumping of a fluidic media, the micropump comprising:
- a flow duct having a wall body;
- a pinch region in the flow duct;
- an actuator, wherein the actuator is capable of exerting force in the pinch region such that a cross-sectional area of the flow duct being capable of being varied in the pinch regions by the force;
- and
- an electronic control for activating the actuator.
A micropump for pumping of a fluidic media, the micropump comprising:
- a flow duct having a wall body;
- more than one pinch region in the flow duct;
- and
- more than one actuator, wherein the actuator is capable of exerting force in the pinch region such that a cross-sectional area of the flow duct being capable of being varied in the pinch regions by the force exerted by the actuator.
A method for production of a micropump for the pumping of fluidic media, the method comprising:
- producing a casing using the a microinjection-moulding method;
- introducing at least one actuator into the casing;
- introducing at one flow-duct master moulding into the casing;
- filling the casing with an elastic material;
- and
- removing the at least one flow-duct master moulding from the casing.
Dependencies are inferred from the claim text.