Method and device for separating samples from a liquid
First Claim
1. A system for aspirating and/or dispensing of liquid samples that comprises a microejection device and a pump, which are connected with one another via tubing, wherein the pump is accomplished as a piston pump comprising a pump cylinder, a pump piston, and a pump drive, and wherein this system comprises a computer that is capable of being loaded with an activatable computer program product for synchronizing operation of the microejection device and the pump,wherein the system carries out the following functions because of the computer program product loaded and activated into the computer to control and synchronize the system:
- a) to actively define sample volumes until a maximum under-pressure is reached in the tubing, using only the microejection device, which is filled with sample liquid;
b) dispense the sample volumes defined in (a) using only the microejection device, which is filled with sample liquid; and
c) to track the piston of the pump that conveys liquid about a tracking value that is dependent on the sample volume, which is defined in (a) and is actively dispensed only by the microejection device in (b);
wherein said tracking value is maximized at an error volume.
1 Assignment
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Accused Products
Abstract
System, method, and computer program product for synchronizing a system for aspirating and/or dispensing of liquid samples that includes a microejection device and a pump, which are connected with one another via tubing, wherein a computer is capable of being loaded with an activatable computer program product for synchronizing operation of the microejection device and the pump. Embodiments are characterized in that the loaded and activated computer program product, directs the computer to control and synchronize the system: (a) to actively define a sample volume and dispense the defined sample volume using the microejection device, which is filled with sample liquid; and (b) to track a part of the pump that conveys liquid around a value, dependent on the sample volume, which is defined and is actively dispensed only by the microejection device, to prevent excessive pressure differences in the microejection device, tubing, and pump.
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Citations
19 Claims
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1. A system for aspirating and/or dispensing of liquid samples that comprises a microejection device and a pump, which are connected with one another via tubing, wherein the pump is accomplished as a piston pump comprising a pump cylinder, a pump piston, and a pump drive, and wherein this system comprises a computer that is capable of being loaded with an activatable computer program product for synchronizing operation of the microejection device and the pump,
wherein the system carries out the following functions because of the computer program product loaded and activated into the computer to control and synchronize the system: -
a) to actively define sample volumes until a maximum under-pressure is reached in the tubing, using only the microejection device, which is filled with sample liquid;
b) dispense the sample volumes defined in (a) using only the microejection device, which is filled with sample liquid; and
c) to track the piston of the pump that conveys liquid about a tracking value that is dependent on the sample volume, which is defined in (a) and is actively dispensed only by the microejection device in (b);
wherein said tracking value is maximized at an error volume. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for synchronizing a system for aspirating and/or dispensing liquid samples, wherein the system comprises a microejection device and a pump connected with one another by tubing, wherein the pump is accomplished as a piston pump comprising a pump cylinder, a pump piston, and a pump drive, and wherein the system further comprises a computer that includes a loaded activatable computer program product that synchronizes the microejection device and the pump,
wherein the loaded and activated computer program product directs the computer to control and synchronize the system, the method comprising: -
a) actively defining sample volumes until a maximum under-pressure is reached in the tubing, using only the microejection device, which is filled with sample liquid;
b) dispensing the sample volumes defined in (a) using only the microejection device, which is filled with sample liquid; and
c) tracking the piston of the pump that conveys liquid about a tracking value that is dependent on the sample volume, which is defined in (a) and is actively dispensed only by the microejection device in (b);
wherein said tracking value is maximized at an error volume. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 19)
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16. A computer program product for synchronizing a system for aspirating and/or dispensing liquid samples, wherein the system comprises a microejection device and a pump that are connected with one another by tubing, wherein the pump is accomplished as a piston pump comprising a pump cylinder, a pump piston and a pump drive, and wherein the system further comprises a computer wherein the computer is capable of being loaded with activatable computer program product for synchronizing operation of the microejection device and the pump, and wherein this computer program product, in its activated state, enables the computer to control and synchronize the system:
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a) to actively define sample volumes until a maximum under-pressure is reached in the tubing, using only the microejection device, which is filled with sample liquid;
b) dispense the sample volumes defined in (a) using only the microejection device, which is filled with sample liquid; and
c) to track the piston of the pump that conveys the liquid about a tracking value that is dependent on the sample volume, which is defined in (a) and is actively dispensed only by the microejection device in (b) wherein said tracking value is maximized at an error volume. - View Dependent Claims (17, 18)
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Specification