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Multi-channel micro-volume sampling device

A sample adding device and micro-volume technology, applied in analytical materials, instruments, etc., can solve the problems of inability to meet actual requirements and low efficiency, improve sampling and sample adding efficiency, ensure the accuracy of results, and avoid cross-contamination effects.

Inactive Publication Date: 2013-06-19
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The efficiency is not high, and it is increasingly unable to meet the actual requirements of a large number of sample detection

Method used

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  • Multi-channel micro-volume sampling device
  • Multi-channel micro-volume sampling device

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Embodiment Construction

[0016] The present invention will be further explained below in conjunction with the accompanying drawings.

[0017] like figure 1 , 2 As shown, the present invention includes a base plate 1 on which a drive system is installed. The drive system includes a motor bracket installed on the base plate 1, and a motor 2 is installed on the motor bracket. The output shaft of the motor 2 is connected with the ball screw 3 through the coupling 3, the ball screw 3 is provided with a nut, the nut is fixed on the needle center mounting plate 5, and the center line of the ball screw 9 coincides with the base plate 1. The two ends of the needle center mounting plate 5 are respectively fixed on two sliders by nuts, and the two sliders are respectively installed on the linear guide rails 4 adapted thereto, and several needle cores 10 are fixed on the needle core mounting plate 5 . A needle tube mounting plate 6 is arranged below the needle core mounting plate 5, and the needle tube mounting...

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Abstract

The invention discloses a multi-channel micro-volume sampling device, comprising a drive system which is connected with a control system, wherein an output end of the drive system is connected with a screw structure; a nut of the screw structure is arranged on a needle center mounting plate; the needle center mounting plate is fixed on a slide block; the slide block is matched with a linear lead rail; a plurality of needle centers are fixed on the needle center mounting plate; a needle pipe mounting plate is arranged below the needle center mounting plate; needle pipes of which the quantity is the same as that of the needle centers are arranged on the needle pipe mounting plate; the needle pipes correspond to the needle centers one by one; the needle centers extend into the needle pipe; springs are arranged at two ends of the needle pipe mounting plate; the upper ends of the springs are close to the bottom surface of the needle center mounting plate; the lower ends of the springs are connected with an unscrew plate; the unscrew plate has a through hole matched with the needle pipe; the needle pipe extends into the through hole of the unscrew plate; a sucker is arranged at the lower end of the needle pipe; and the outer diameter of the sucker is greater than the aperture of the through hole in the unscrew plate. The multi-channel micro-volume sampling device is high in sampling and loading efficiency, and suitable for a plurality of biochemical tests or sample detection, and can automatically replace the sucker; and all channels are mutually independent.

Description

technical field [0001] The invention relates to the field of biochemical analysis instruments, in particular to a multi-channel micro-volume sampling device for accurately transferring liquid samples in a large-scale fully automatic biochemical system. Background technique [0002] Modern biochemical analysis instruments are one of the indispensable instruments in the fields of medicine and biology, and play a vital role in medical testing, biological analysis, and drug testing. [0003] At present, in domestic large and medium-sized hospitals and various biochemical laboratories, pipettes, syringes and other sampling devices are generally used to transfer liquid samples. The use of this kind of equipment is not only cumbersome to operate, but also has low precision in adding samples, and the uniformity between adding samples is poor. Especially with the application of modern ultra-trace analytical techniques such as radioimmunoassay and enzyme immunoassay, the accuracy, mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/10
Inventor 何农跃刘铮邓燕李智洋刘宾
Owner SOUTHEAST UNIV
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