Sampling system for automatically identifying samples and sampling method for sampling system

A sampling system and sample technology, applied in the direction of analyzing materials, instruments, etc., can solve the problems that manual sampling cannot automatically inject multiple sample types, single, increase trouble and cost, etc., to prevent inaccurate test results of instruments, operability Strong, low-cost effects

Active Publication Date: 2013-01-23
SHENZHEN CORNLEY BIO MEDICAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Manual sampling cannot automatically inject samples and cannot use multiple sample types for sampling. The general sampling system can only detect syringes or capillaries, that is to say, the same sampling system can only use a single syringe or capillary , if you change to another type, you need to replace the sampling system, which will undoubtedly increase a lot of trouble and cost, and you need to manually operate the sampling during use, and you need to manually clean the outer wall of the sampling needle after the sampling is completed

Method used

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  • Sampling system for automatically identifying samples and sampling method for sampling system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, when the sampling rack 6 is in use, it will automatically return to the initial state and initial position. The process is as follows: the stepping motor 3 drives the screw rod 5 to rotate through the rotation of the synchronous belt 1, and the sampling arm 10 is installed on the rolling linear guide rail 4 and connected with the screw rod 5. The rod 5 is connected. When the screw rod 5 rotates, the sampling arm 10 moves linearly, and the sampling needle 9 is fixed on the sampling arm 10 and inserted into the sampling nozzle 7. When sampling is required, the stepper motor 3 rotates to drive the screw rod. 5 rotate, so that the sampling arm 10 drives the sampling needle 9 to move in the sampling nozzle 7, and the first optocoupler 12 detects the initial position to control the movement amount of the sampling needle 9 during the movement, thus realizing the sampling process.

Embodiment 2

[0035] The deceleration stepper motor 17 drives the rotary cam 18 to rotate, and the swing roller 19 is placed on the rotary cam 18 and connected with the rotating shaft 20 . The rotating shaft 20 is fixed with the sample type detection arm 14 and connected with the rotary encoder 15 through a coupling 16 . When the rotary cam 18 rotates, the swing roller 19 swings within a certain angle so that the rotating shaft 20 drives the sample type detection arm 14 to swing to detect the sample type, and when the sample type detection arm 14 detects the sample, the rotary encoder 15 is rotated by one Angle, the rotary encoder 15 recognizes the angle pulse signal reading and sends the reading to the main control board 22. At this time, the main control board 22 reads the angle reading for comparison to determine the type of the sample. This process completes the sample type detection.

Embodiment 3

[0037] Firstly, the stepper motor 3 rotates so that the first optical coupler 12 just detects the light blocking sheet 11. At this time, the sampling needle 9 is inserted into the sampling nozzle 7, and this state is the "0" position of the sampling part. At the same time, the sample type identification part decelerates the stepper motor 17 to rotate, so that the second light couple 21 cannot detect the light blocking sheet 11. This state is the sample type detection arm 14 "0" position. At this time, the sample type detection arm 14 is at the sampling interface. 7 below. Then the stepper motor 3 rotates so that the sampling needle 9 stretches out of the sampling nozzle 7, and then the sample type identification part decelerates the stepper motor 17 to rotate so that the sample type detection arm 14 touches the sampling needle 9, because the sample type detection arm 14 and the rotary encoder 15 are connected, and the rotation of the rotary encoder 15 will generate several pul...

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Abstract

The invention provides a sampling system for automatically identifying samples and a sampling method for the sampling system. The sampling system comprises a sampling device, a sample identifying device and a detecting device, wherein the sampling device comprises a lead screw, a sampling arm, a sampling needle and a sampling nozzle; the sampling arm is connected with the lead screw; the sampling needle is fixed to the sampling arm and is inserted into the sampling nozzle; the sample identifying device comprises a rotary cam, a rotating shaft, an oscillating roller, a detecting arm, a coupler and a rotary encoder; the oscillating roller is arranged on the rotary cam, is connected with the rotating shaft and is used for controlling oscillation of the detecting arm; the rotating shaft is connected with the rotary encoder through the coupler; the rotary cam is provided with a light shading plate; the detecting device is arranged below the light shading plate and comprises a first optocoupler and a second optocoupler; the first optocoupler is used for detecting the initial position of the sampling needle; and the second optocoupler is used for detecting the position of the detecting arm.

Description

technical field [0001] This patent relates to the structure of a sampling frame of a blood gas electrolyte analyzer, in particular to a sampling system and method that can automatically sample, identify and clean. Background technique [0002] At present, most of the sampling racks of blood gas and electrolyte analyzers are manual. They cannot automatically inject samples and cannot use multiple sample types for sampling. During use, manual operation is required to inject samples. After the sampling is completed, the outer wall of the sampling needle needs to be cleaned manually. With the higher and higher requirements for instrument automation, manual sampling racks cannot meet the existing use requirements, and manual sampling racks will gradually be replaced by automatic sampling racks that can use multiple sample types. [0003] Manual sampling cannot automatically inject samples and cannot use multiple sample types for sampling. The general sampling system can only dete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/10
CPCG01N35/10G01N35/00732G01N35/1011
Inventor 侯兴凯彭旭
Owner SHENZHEN CORNLEY BIO MEDICAL CO LTD
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