Mono-directional inverse-inhibiting safe blood taking needle
A lancet, one-way technology, applied in the field of medical appliances, can solve problems such as potential safety hazards, adverse effects, blood flow into venous blood vessels, etc., and achieve the effect of protecting medical staff, rational structure, and ensuring safety.
Active Publication Date: 2014-08-27
SHINVA ANDE HEALTHCARE APP CO LTD
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- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the blood collection needles currently used for venous blood collection are all-through, and there is no anti-backflow structure. When the pressure in the blood collection tube is greater than the pressure in the human vein, the blood in the blood collection tube may flow into the venous blood vessel.
On the other hand, there are various reagents in blood collection tubes, and when backflow occurs, the reagents mixed with blood enter human veins, which may cause adverse effects
In addition to the above, after the blood collection is completed, the needle sheath is inconvenient to continue to be inserted on the venipuncture needle. Most of the needles are exposed to the outside, and medical staff are easily injured by the needle, which is easy to cause pollution and infection. There are safety hazards in the use process.
Method used
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Embodiment 1
[0029] Venipuncture end needle tube 6 is directly connected on the one-way valve base 5, as figure 1 shown.
Embodiment 2
[0031] The needle tube 6 at the venipuncture end is connected to the one-way valve base 5 through the flexible pipe 7, the needle tube 6 at the venipuncture end is mounted on the needle handle 8, and the needle tube 6 at the venipuncture end is covered with a protective cover 9 for the needle tube at the venipuncture end, such as figure 2 shown.
[0032] The structure of needle handle 8 is as image 3 , 5 , 6, the needle handle 8 is provided with a raised card point 11, and the raised card point 11 is connected to the elastic slider 10.
[0033] The structure of the venipuncture end needle tube protective cover 9 is as follows: Figure 4 As shown, the inner wall of the venipuncture end needle tube protective cover 9 is provided with front and rear two draw-in grooves 12, 13, and the outer wall of the venipuncture end needle tube protective cover 9 has a slide groove.
[0034] The combination of the above-mentioned needle handle 8 and the needle tube protective cover 9 at t...
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The invention belongs to the field of medical appliances, and specifically relates to a one-way anti-reverse safety blood collection needle, which is characterized in that it includes a needle tube at a docking end, a needle tube at a venipuncture end, and a connecting device between the needle tube at the docking end and the needle tube at the venipuncture end, the connecting device There is a one-way anti-reverse flow structure. The structure of the blood collection needle is reasonable, and by setting a one-way anti-reverse flow structure, it can prevent blood from flowing backward from the blood collection tube into the venous blood vessels of the human body during the venous blood collection process, ensuring the safety of the blood collection person; the combination of the designed needle handle and the venipuncture needle protective cover It constitutes a safety anti-stab device, which ensures that the needle tube at the venipuncture end is not accidentally punctured, protects the medical staff, and plays the role of safe blood collection.
Description
technical field [0001] The invention relates to a one-way anti-reverse safety blood collection needle, which belongs to the field of medical appliances. Background technique [0002] Currently, various blood collection needles are used in venous blood collection. When blood collection is performed, the venipuncture needle of the blood collection needle is first inserted into the vein, the butt joint needle tube is pierced through the rubber plug of the vacuum blood collection tube, and the blood enters the vacuum blood collection tube through the passage of the blood collection needle under the vacuum suction of the vacuum blood collection tube. As the vacuum degree in the vacuum blood collection tube decreases, the blood collection is terminated when the pressure in the vacuum blood collection tube is approximately equal to the pressure of the blood vessel. When the position of the blood collection tube is higher than that of the blood vessel or the pressure of the human v...
Claims
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IPC IPC(8): A61B5/154
Inventor 王英顺聂玉才
Owner SHINVA ANDE HEALTHCARE APP CO LTD