One-time operation safe vacuum blood-sample acquisition needle

A one-time, safe technology, applied in the field of medical devices, can solve the problems of sharp instrument injury, difficult to achieve one-time use, blood oxidation, etc., to achieve the effect of improving accuracy, fast blood collection, and realizing one-time use

Inactive Publication Date: 2009-02-11
ZHEJIANG KANGKANG MEDICAL DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the two needles of the blood sample collection needle are connected by a flexible tube, and the air in the inner space of the flexible tube has an oxidative effect on the blood.
However, after blood collection, the blood sample collection needle is exposed, which is very easy to cause sharp injuries, and there is a hidden danger of direct cross-infection
At the same time, the collection needles after use are still intact, which provides convenience for some criminals to take advantage of the opportunity to recycle, that is, to clean the discarded disposable blood sample collection needles after use, repackage them and reuse them, so it is difficult to achieve True single use

Method used

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  • One-time operation safe vacuum blood-sample acquisition needle
  • One-time operation safe vacuum blood-sample acquisition needle
  • One-time operation safe vacuum blood-sample acquisition needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The present invention disposable safe vacuum blood sample collection needle such as figure 1 , figure 2 , Figure 3 and Figure 4, in this embodiment, the main body 1, the needle seat cover 2, the plug 3 and the needle seat 4, the retraction button 10 is made of plastic material, wherein the needle seat 4 is made of transparent plastic material. The blood collection needle 8 and the bottle stopper puncture needle 6 are respectively directly fixed on the two ends of the needle holder 4, and the end of the needle holder 4 fixing the bottle stopper puncture needle 6 is covered with a self-sealing rubber sleeve 5, because they are fixed with the needle holder 4 and have the same structure. It is a prior art and will not be described in detail here;

[0040] The main body 1 is a hollow cylinder as a whole, refer to Figure 8 ~ Figure 1 1. The main body 1 includes two parts, the main body A 106 and the main body B 107, which can be separated along its axial direction. On the...

Embodiment 2

[0046] This embodiment is basically similar to Embodiment 1, the differences are as Figure 6 As shown, the structure of the needle seat cover 2 does not have the upper sleeve 202 part on the upper part of the clamping ring 203, so it is shorter than that described in Embodiment 1, and it is clamped in the clamping groove 109 and the main body through the clamping ring 203 1 is fixedly connected; the needle seat cover 2 of this embodiment is not provided with the upper sleeve 202 part protruding from the main body 1 as in Embodiment 1, but as Figure 6 and Figure 15 As shown, in the present embodiment, at the front part of the main body A 106 and the main body B 107 of the main body 1, the elongation parts of the upper body A 110 and the upper body B 111 integrated with them are added respectively, the upper body A 110 and the upper body B 111 These two parts are assembled together, just like the upper casing 202 part of the needle seat cover 2, the plug 3 is covered and fix...

Embodiment 3

[0048] This embodiment is basically similar to Embodiment 1, except that the main body A 106 and the main body B 107 are integrally formed into the overall structure of the main body 1, and the connection between the plug 3 and the main body 1 or the plug 3 and the needle seat cover 2 is a rotary Fixed connection, or fixed connection by glue.

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Abstract

The invention discloses a disposable safe vacuum blood sampling needle which relates to the technical field of medical appliances, comprises a blood taking needle (8), a cork puncturing needle (6) and a needle holder (4), and is characterized in that: the disposable safe vacuum blood sampling needle further comprises a main body (1), a needle holder sleeve (2), an embolism (3), a compressed spring (7), a retracted button (10) and a button spring (11), and the retracted button (10) can be pressed so as to lead the blood taking needle (8) to be retracted and hidden after blood sampling is finished. The disposable safe vacuum blood sampling needle has reasonable structure design, convenient assembly and reliable action, the needle holder (4) takes transparent material and is convenient for observing blood backflow, and the blood taking flow path is ultra-short, thus having minimal blood oxidation influence due to tiny amount of air and improving the accuracy of blood examination and analysis results; the blood taking needle (8) is retracted and hidden, thus ensuring that the medical care personnel is prevented from accident damages caused by a polluted needle tip, avoiding the pathophoresis of blood-borne diseases, providing safer working environments and more healthful and safer use for the medical care personnel, and being favorable for realizing real disposable usage.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a disposable safe vacuum blood sample collection needle. Background technique [0002] Collecting venous blood samples and conducting inspection and analysis of various blood items are common tasks in the diagnosis of diseases in the medical and health field. The principle of vacuum negative pressure in the disposable vacuum blood collection tube is adopted during blood collection, so that the blood will automatically flow into the vacuum blood collection tube through the blood sample collection needle, so as not to cause cross-infection caused by blood backflow, which largely ensures the hygiene of the whole blood collection process. However, the two needles of the blood sample collection needle are connected by a flexible tube, and the air in the inner space of the flexible tube has an oxidative effect on the blood. After the blood collection, the blood sample collecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/155A61B5/153
Inventor 蒋文俊
Owner ZHEJIANG KANGKANG MEDICAL DEVICES
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