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Anti-reverse-flow valve device for collecting venous blood samples and blood collecting needle device

A technology for preventing backflow and venous blood, applied in the field of medical devices, can solve the problems of poor anti-backflow effect and backflow of blood collection needles

Pending Publication Date: 2018-08-17
曹春荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first object of the present invention is to provide a venous blood sample collection anti-reflux valve device and a blood collection needle device to solve the problem that the anti-reflux effect of the blood collection needle in the prior art is not good, and it is easy to have backflow when blood is collected question

Method used

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  • Anti-reverse-flow valve device for collecting venous blood samples and blood collecting needle device
  • Anti-reverse-flow valve device for collecting venous blood samples and blood collecting needle device
  • Anti-reverse-flow valve device for collecting venous blood samples and blood collecting needle device

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Embodiment 1

[0036] Such as figure 1 As shown, the present embodiment provides a blood collection needle device, such as figure 1 As shown, it includes: a venous blood collection needle 1 for puncturing blood collection, a plug puncture needle 2 for connecting negative pressure blood collection tubes, and a connecting portion 10 connecting the venous blood collection needle 1 and the plug puncture needle 2 .

[0037] The connection part 10 includes a blood collection needle handle 4 connected in sequence, a connecting hose 5 and a venous blood sample collection anti-reflux valve device 3; the blood collection needle handle 4 is connected to the venous blood collection needle 1, and the tube plug puncture needle 2 is connected to the The blood sample collection anti-reflux valve device 3 is connected, and the venous blood sample collection anti-reflux valve device 3 is provided with an elastic one-way valve for preventing the collected blood from flowing back into the vein.

[0038] Among ...

Embodiment 2

[0057] The venous blood sample collection anti-reflux valve device provided in this embodiment is a component of the blood collection device in Embodiment 1. The technical content disclosed in Embodiment 1 will not be described repeatedly in this embodiment, and the content disclosed in Embodiment 1 also belongs to this embodiment. The content disclosed in the embodiment and the technical solution described in the first embodiment also belong to this embodiment, and will not be repeated in this embodiment.

[0058]That is to say, the present embodiment provides an anti-reflux valve device 3 for venous blood sample collection, including: a first connecting seat 31 with a through hole 301 disposed in the middle, an elastic anti-reflux valve 32 installed on the first connecting seat 31, and the first The connecting seat 31 cooperates to form a second connecting seat 33 for accommodating the cavity 302 of the elastic anti-backflow valve 32 . In this embodiment, the second connecti...

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Abstract

The invention provides an anti-reverse-flow valve device for collecting venous blood samples and a blood collecting needle device, and relates to the technical field of medical instruments. The bloodcollecting needle device comprises a venous blood collecting needle, a tube plug puncture needle and a connecting part connected with the venous blood collecting needle and the tube plug puncture needle, and the connecting part is provided with the anti-reverse-flow valve device for collecting the venous blood samples; the anti-reverse-flow valve device comprises a first connecting base with a through hole in the middle, an elastic anti-reverse-flow valve installed on the first connecting base and a second connecting base cooperating with the first connecting base to form a cavity for containing the elastic anti-reverse-flow valve; the second connecting base is clamped to the first connecting base; the second connecting base is provided with a through hole communicated with the exterior, collected blood can be effectively prevented from reversely flowing into the human body, and the situation is avoided that blood contaminated by bacteria enters the human body and causes damage to thehuman body. In addition, the aseptic treatment on a whole blood collecting container can also be omitted, and the cost can be saved.

Description

technical field [0001] The invention relates to the technical field of medical appliances, in particular to a venous blood sample collection anti-reflux valve device and a blood collection needle device. Background technique [0002] In the medical field, medical personnel collect and obtain human physiological and pathological information through various means for correct diagnosis of diseases. Among them, the collection of blood samples usually has the following three methods: ①Subcutaneous blood collection is mostly used for simple and simple analysis of blood components. For classification and counting detection, a hypodermic needle is often used. ② Venous blood collection can carry out detailed detection of hematology, blood endogenous etiology and other related subject indicators. It is widely used in clinical practice, and pen-type or split-type venous blood collection needles are mostly used. ③Arterial blood collection is mostly used to detect arterial blood gas ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/154
CPCA61B5/15003A61B5/150221A61B5/154
Inventor 刘贞宽
Owner 曹春荣
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