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Overflow type pipetting device

A liquid pipetting device, overflow technology, applied in the direction of measuring tube/suction tube, etc., can solve the problems that cannot be stretched and collected according to actual needs, exposed below the external sleeve, vulnerable to damage and pollution, etc., to achieve Ingenious structural design, convenient liquid drainage and convenient operation

Inactive Publication Date: 2021-08-03
JIANGSU KEHUA MEDICAL INSTR TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the existing blood collection pipette is a common tool for analyzing blood in hospitals and other medical departments. Its structure generally includes a top air bag, an external sleeve, and a pipette. A pipette is installed inside, and the lower end of the pipette extends to the outside of the lower end of the outer sleeve, and the liquid is released into the pipette to achieve quantitative collection of liquid through the extrusion of the airbag. The pipette is generally fixed at the bottom of the outer sleeve, which cannot be telescopically collected according to actual needs. In addition, the lower end of the pipette is generally exposed below the outer sleeve, which is easily damaged and polluted. The overflowed liquid is generally stored inside the outer sleeve, making it impossible for the liquid to drain

Method used

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Embodiment Construction

[0018] The content of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] Such as Figures 1 to 4 As shown, an overflow pipetting device includes a top airbag 1, an external sleeve 2, a pipette 3, a rotary drive mechanism 4, and an overflow storage mechanism 5; the lower end of the top airbag 1 is equipped with an external sleeve 2. A pipette 3 is installed in the middle of the outer sleeve 2; the pipette 3 is slidably mounted in the middle of the outer sleeve 2; the rotating drive mechanism 4 includes a positioning ring 41, a drive inner Thread ring 42, floating external thread sleeve 43, positioning block 45, adjusting screw rod 44; the positioning ring body 41 is installed around the lower end surface of the outer sleeve 2; the upper end of the driving internal thread ring 42 is mounted on the positioning Around the lower end of the ring body 41; the internal thread of the driving internal thread ring 42 i...

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Abstract

The invention discloses an overflow type pipetting device. The overflow type pipetting device comprises an overflow liquid storage mechanism; the transfer pipette moves upwards, so that liquid flowing from the upper end of the transfer pipette flows out to the outer side through the overflow holes in the outer side of the periphery of the outer sleeve and is stored in the annular liquid storage cavity defined by the liquid storage ring body and the outer sleeve, the liquid overflowing from the interior of the outer sleeve can be discharged, and the convenient liquid discharging function is achieved.

Description

technical field [0001] The invention relates to an overflow pipetting device. Background technique [0002] At present, the existing blood collection pipette is a common tool for analyzing blood in hospitals and other medical departments. Its structure generally includes a top air bag, an external sleeve, and a pipette. A pipette is installed inside, and the lower end of the pipette extends to the outside of the lower end of the outer sleeve, and the liquid is released into the pipette to achieve quantitative collection of liquid through the extrusion of the airbag. The pipette is generally fixed at the bottom of the outer sleeve, which cannot be telescopically collected according to actual needs. In addition, the lower end of the pipette is generally exposed below the outer sleeve, which is easily damaged and polluted. The overflowed liquid is generally stored inside the outer sleeve so that the liquid cannot drain. Contents of the invention [0003] Aiming at the short...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01L3/02
CPCB01L3/02
Inventor 马荣华吴芹狄克祥
Owner JIANGSU KEHUA MEDICAL INSTR TECH CO LTD
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