Liquid distribution equipment

A technology for dispensing equipment and equipment, which is applied to liquid ejection devices, analytical materials, ejection devices, etc., can solve the problems of uneven performance of liquid reagents and high costs, and achieve the effects of symmetrical lines, cost savings, and reduction of zigzag structures.

Active Publication Date: 2015-02-11
ABON BIOPHARM HANGZHOU
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Problems solved by technology

[0007] However, stepper motors or servo motors using the principle of electric pulses also have inherent defects in liquid distribution or automatic processing, especially when liquid reagents are processed on solid-phase matrix materials, and inherent defects are also exposed, mainly Due to the characteristics of the operation of the electric pulse principle, the performance of liquid reagents on solid-phase matrix materials is not uniform. When it is necessary to process line-like reagent lines on the matrix material, this defect is more prominent.
One aspect of solving this problem is to use more accurate equipment, such as equipment with smaller step angles or servo motors with higher precision, but this requires high costs

Method used

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Embodiment Construction

[0029] In conjunction with the accompanying drawings, the structure of the present invention and the specific technical solutions used will be further described below. These descriptions are only limited descriptions of some implementations of the present invention, and do not constitute further limitations on the claims required by the present invention.

[0030] figure 1It is a specific operation mode of the traditional liquid dispensing device 108. In this embodiment, the pump can be a commonly used syringe pump 120, which is automatically driven by a driver 142. The motor or servo motor drives the piston 118 in the syringe pump to move back and forth in the piston barrel 162 . Those of ordinary skill in the art know that when the piston 118 is withdrawn, such as moving downward, the liquid 130 located in the liquid storage chamber 116 enters the inside of the syringe pump 12 through the switching valve 145. When the piston 118 is propelled, such as moving upwards, the l...

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Abstract

The invention provides liquid distribution equipment which comprises a pump and a first liquid outlet channel, wherein the first liquid outlet channel is in liquid communication with the pump, and the liquid is sprayed onto a matrix material through the first liquid outlet channel by controlling the pump; the equipment further comprises an airtight sealing space which is in liquid communication with the pump and the first liquid outlet channel, and the airtight sealing space is partially filled with liquid and partially filled with air. Optimally, the cross section area of the airtight sealing space is larger than that of the first liquid outlet channel.

Description

technical field [0001] The present invention pertains to liquid dispensing apparatus and in particular to spraying liquid onto a substrate material, such as a nitrocellulose membrane, through a pump arrangement in the apparatus. Background technique [0002] Clinical detection is becoming more and more popular, mainly using some detection reagents to detect whether the target analyte is contained in the patient's body fluid (test sample). Such detection reagents or detection equipment include many, among which the main one is immunological detection based on the principle of immunology. Immunoassays can be performed in different ways and formats. Of all the different formats in which immunoassays are applied, probably the most widely used are those employing immobilized antibodies and / or antigens, employing solid phase separation. In the professional world this technique is known as a heterogeneous immunoassay. Separation of immobilized antibodies and / or antigens is only ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N35/10
CPCB05B9/0403B05B15/00
Inventor 周勇华徐伟昌杨康张静流
Owner ABON BIOPHARM HANGZHOU
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