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Automatic quantitative vein blood sampling needle device

A technology of blood collection needles and veins, applied to blood sampling devices, etc., can solve problems such as high labor intensity, waste of investment and resources, and cumbersome vacuum production process, and achieve the effects of reducing waste of resources, simple operation, and cost reduction

Inactive Publication Date: 2006-06-21
徐双苗
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problems of the vacuum degree of the currently used vacuum blood collection device and the problems of cumbersome production process, high labor intensity, waste of investment and resources, etc., and propose an automatic and quantitative vein collection needle device

Method used

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  • Automatic quantitative vein blood sampling needle device
  • Automatic quantitative vein blood sampling needle device
  • Automatic quantitative vein blood sampling needle device

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Embodiment Construction

[0045] The following is a further description of the component material and its parameters:

[0046] 1. 7# venipuncture needles and 8# puncture needles are provided by professional manufacturers with production qualifications for such products.

[0047] 2. Reference standard in design: GB15810(1)-2001.

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Abstract

The present invention discloses one automatic rationing venous blood taking needle device and relates to clinical blood sampling device. The automatic rationing venous blood taking needle device consists of one bi-directional taking needle and one hand-held syringe. The bi-directional taking needle consists of a 7# venous puncture needle, a needle seat, a bolt and a 8# venous puncture needle. The hand-held syringe consists of a sleeve, a switch unit, a piston, a pull rod, a spring, a positioning tube, a ventilating port and a hose. The bi-directional taking needle is fixed via thread onto the switch unit of the hand-held syringe. The present invention is one disposable device operating on vacuum negative pressure principle, and has the features of automatic rationing venous blood taking, raised vacuum accuracy, high vacuum maintaining capacity, etc.

Description

technical field [0001] The invention relates to a collection device for clinical medical examination of venous blood samples, in particular to an automatic and quantitative venous blood collection needle device. Background technique [0002] At present, known venous blood sample collection devices are disposable vacuum blood collection devices and disposable syringes. The disposable vacuum blood collection device is composed of a vacuum blood vessel and a hose-connected venous blood collection needle or a sleeve with a vertical collection needle. Its action process is: insert one end of the collection needle into the human vein, and then insert the other end into the pre-prepared additive and evacuated blood vessel, and use the principle of vacuum negative pressure to achieve the purpose of quantitative blood collection. The use of disposable vacuum blood collection devices for venous blood collection is currently an advanced blood collection method, which has replaced the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/15
Inventor 徐双苗
Owner 徐双苗
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