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Micro pump

a micro-pump and pump body technology, applied in the field of micro-pumpe, can solve the problems of difficult to deliver a fixed quantity of fluid, and difficult to accurately observe or inspect the reaction between drugs and cells through only experimental results using culture dishes

Inactive Publication Date: 2014-10-02
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a micro pump that can repeatedly supply a small amount of fluid. This micro pump has a channel forming substrate and a valve integrally formed therein, with the valve being a thin film member. The micro pump may also include an actuator and an upper substrate with first and second holes connected to the inlet and outlet. The upper substrate may have a curved shape with different radius sizes for the first and second cut off lines. The technical effects of this invention are that it allows for precise control of fluid delivery and simplifies the manufacturing process.

Problems solved by technology

However, since reaction between drugs and the cells in experiments performed within the culture dish are very different from reactions between drugs and cells in experiments performed within living bodies, it is difficult to accurately observe or inspect reactions between drugs and cells through only experimental results using culture dishes.
However, Patent Document 1 does not disclose a valve completely interrupting a flow of fluid, such that it may be difficult to deliver a fixed quantity of fluid.

Method used

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Experimental program
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Effect test

first embodiment

[0090]Next, another form of the valve will be described with reference to FIGS. 6 to 13. First, the valves 210 and 220 according to the present invention will be described with reference to FIGS. 6 to 8.

[0091]The valves 210 and 220 according to the first embodiment of the present invention may include the thin film member 10, the first opening and closing member 20, and the second opening and closing member 30. Herein, the thin film member 10, the first opening and closing member 20, and the second opening and closing member 30 may be integrally formed. In other words, the first opening and closing member 20 and the second opening and closing member 30 may be formed by machining the thin film member 10.

[0092]The thin film member 10 may be a membrane having a circular cross-section. However, a cross-sectional shape of the thin film member 10 is not limited to a circle. For example, the thin film member 10 may have a polygonal cross-section, including a quadrangular shape.

[0093]The th...

second embodiment

[0103]Next, the valves 210 and 220 according to the present invention will be described with reference to FIGS. 9 to 11.

[0104]The valves 210 and 220 according to the second embodiment of the present invention may be differentiated from the first embodiment of the present invention in that heights from the central point O of the thin film member 10 to apexes of the cut off lines 40 and 50 are different. That is, a height h1 from the central point O to the apex of the first cut off line 40 maybe different from a height h2 from the central point O to the apex of the second cut off line 50.

[0105]The structure may naturally induce the difference in the areas of the first opening and closing member 20 and the second opening and closing member 30. In addition, in the structure, a portion of separating both ends of the first cut off line 40 and the second cut off line 50 serves as a rotation shaft, such that the first opening and closing member 20 and the second opening and closing member 3...

third embodiment

[0109]The valves 210 and 220 according to the present invention may further include the third cut off line 60. The third cut off line 60 may extend inwardly (in a direction toward the central point O) from both ends of the first cut off line 40. The third cut off line 60 is not connected to the second cut off line 50, but may be located on the same line as both ends of the second cut off line 50.

[0110]In the valves 210 and 220 formed as described above, a connection length L1 between the thin film member 10 and the first opening and closing member 20 is relatively short by the third cut off line 60, such that the motion of the first opening and closing member 20 may be smoothly performed.

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Abstract

There is provided a micro pump including a bottom substrate, a channel forming substrate coupled to the bottom substrate and provided with an inlet into which a fluid is introduced and an outlet through which the fluid is discharged, and a valve integrally formed with the channel forming substrate.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the priority of Korean Patent Application No. 10-2013-0034669 filed on Mar. 29, 2013, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a micro pump, and more particularly, to a micro pump repeatedly supplying an extremely small quantity of fluid and having a channel forming substrate and a valve integrally formed therein.[0004]2. Description of the Related Art[0005]In order to develop new medicines and to perform experiments to determine the stability thereof, it is essential to observe a reaction between new medicines (that is, drugs) and cells. In general, a reaction experiment between the drug and the cell is performed using a culture dish or the like.[0006]However, since reaction between drugs and the cells in experiments performed within the culture dish are ver...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F04B19/00F04B13/00F04B17/00
CPCF04B19/006F04B13/00F04B43/046F04B43/043F04B17/003B81B5/00B81B7/00B81B2201/036B81B2201/054
Inventor KIM, SANG JINKU, BO SUNG
Owner SAMSUNG ELECTRO MECHANICS CO LTD