Uniformly mixing method and device for whole blood automatic layer absorbing sample suitable for hemorrheology detection

A sampling device and blood flow technology are applied in the field of blood flow test equipment and flow characteristics, which can solve the problems of complex equipment structure and test tube rupture, and achieve the effect of simple equipment structure and accurate test results.

Active Publication Date: 2012-09-12
山东美医林电子仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the complex structure of the equipment used in the existing mixing method and the shortcoming that the test tube is prone to breakage, the present invention provides an automatic whole blood mixing method suitable for hemorheology detection. Another purpose of the present invention is to provide a Whole blood automatic mixing device suitable for blood rheology detection, the whole blood automatic mixing device suitable for blood rheology detection not only takes blood evenly, but also has simple structure and easy operation

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  • Uniformly mixing method and device for whole blood automatic layer absorbing sample suitable for hemorrheology detection
  • Uniformly mixing method and device for whole blood automatic layer absorbing sample suitable for hemorrheology detection

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Embodiment 1

[0016] Embodiment 1, a whole blood automatic layer suction sampling device suitable for blood rheology detection, comprising a sample test tube 1 installed on a sample test tube holder 2 and a sampling needle 5 inserted into the test tube, characterized in that: the sampling needle and The liquid level probe 19 parallel to it is fixed on one end of the support arm 6, and the other end of the support arm is fixed on the rack 9, and the rack is installed on the frame consisting of the support plate 15, the upper bracket 8 and the lower bracket 7 through the bushing 16. On the upper and lower brackets, the rack is driven by a stepping motor 10 mounted on the support plate, and a gear 11 kneaded with the rack is installed on the rotating shaft of the stepping motor, and an upper limit switch 12 and a lower limit switch 13 are respectively installed on the upper and lower brackets . The lower bracket is equipped with a cleaning part 14 for the outer wall of the sampling needle and ...

Embodiment 2

[0017] Embodiment 2, a whole blood automatic layer suction sampling device suitable for blood rheology detection, including a sample test tube 1 installed on a sample test tube holder 2 and a sampling needle 5 inserted into the test tube, characterized in that: the sampling needle and The liquid level probe 19 parallel to it is fixed on one end of the support arm 6, and the other end of the support arm is fixed on the screw rod, and the screw rod is installed on the frame composed of the support plate 15, the upper bracket 8 and the lower bracket 7 through the bushing 16. , On the lower support, the screw mandrel is driven by the stepper motor 10 installed on the support plate, and the worm screw matched with the turbine that is enclosed within the outer screw mandrel is housed on the stepper motor rotating shaft. An upper limit switch 12 and a lower limit switch 13 are respectively housed on the upper and lower supports. The lower bracket is equipped with a cleaning part 14 f...

Embodiment 3

[0018] Embodiment 3, a whole blood automatic layer suction sampling device suitable for hemorheological detection, its structure is that a stepper motor 10, an upper limit Position switch 12, lower limit switch 13, and two axle sleeves 16 up and down. The gear 11 installed at the end of the rotating shaft of the stepping motor 10, the gear 11 is fully engaged with the rack shaft 9 passing through two bushings 16, the rack shaft 9 is fixed with a support arm 6, and a hollow sampler is fixed on the support arm 6 The needle 5 and the solid liquid level probe 19 are fixed with an insulating gasket 22 between the liquid level probe 19 and the support arm 6, and the liquid level probe 19 and the support arm 6 are insulated, and the upper end of the sampling needle 5 is connected to the lead wire of the sampling needle 21. The sampling needle lead wire 21 is connected to the main program circuit. The sampling needle and the liquid level probe outer wall cleaning part 14 are fixed on ...

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Abstract

The invention discloses a uniformly mixing method and device for whole blood automatic layer absorbing sample suitable for hemorrheology detection, and particularly relates to equipment for testing flow characteristics of material, such as equipment for testing viscosity, in particular to equipment for detecting hemorrheology. The whole blood automatic layer absorbing sample device suitable for hemorrheology detection comprises a sample test tube arranged on a sample test tube bracket and a sampling needle inserted into the test tube and is characterized in that the sampling needle and a liquid level probe parallel to the sampling needle are fixedly arranged at one end of a support arm; the other end of the support arm is fixedly arranged on an upright rod; the upright rod is arranged on an upper bracket and a lower bracket of a framework consisting of a support plate, the upper bracket and the lower bracket through a shaft sleeve; the upright rod is driven by a stepping motor arranged on the support plate; the upper and lower brackets are respectively provided with an upper limit switch and a lower limit switch. The device provided by the invention has the function of uniformly absorbing blood samples at each viscosity levels from the most bottom of the test tube to the upper plane of the blood sample, thus, the device has the advantages of simple structure and accurate detection results.

Description

technical field [0001] The invention belongs to measuring equipment, in particular to equipment for testing the flow properties of materials, such as viscosity, in particular to equipment for testing blood rheology. Background technique [0002] Clinical testing of blood rheology items requires mixing of whole blood samples. Due to the particularity of blood rheology items, stirring and mixing cannot usually be used. Existing mixing techniques are huff and puff mixing and inversion mixing. The detection of blood rheology requires a large amount of whole blood sample, usually 3-5 ml, so the above two mixing methods have problems such as too long mixing time and contamination of the sample by residual cleaning solution. At the same time, the equipment for inverting and mixing is complex in structure, and has relatively high requirements for the operation of the test tubes containing the whole blood samples and the blood collection process, and the test tubes are prone to rupt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/38
Inventor 王振宇李传龙刘拯荆全振陈忠武
Owner 山东美医林电子仪器有限公司
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