Disposable central vein puncture kit

Abstract

The invention relates to the technical field of medical equipment, in particular to a disposable central vein puncture kit. At present, after a puncture needle penetrates through a central vein, a guide steel wire is arranged, the puncture needle is withdrawn, the skin is expanded through a skin expander, and a central vein catheter is arranged along the guide steel wire during domestic venous transfusion cathetering. The defects are that 1, the guide steel wire possibly touches the heart, so that arrhythmia is caused; 2, the skin is expanded through the skin expander, so that the guide steel wire is possibly bent, the catheter is difficult to arrange, and puncture fails; and 3, the catheter is thick, and the central venous catheter related infection probability is high. The disposable central vein puncture kit comprises a central vein catheter and a puncture needle, wherein a catheter sheath is arranged outside the puncture needle and has an easily torn breakage indentation. During use, the central vein catheter is arranged through the catheter sheath. The operation is easy, the guide steel wire is not required, the skin is not required to be expanded, the injury of a patient is lightened to a certain degree, and the related infection occurrence rate of the catheter is reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a disposable central venous puncture kit. Background technique [0002] At present, the Seldinger method is used in domestic intravenous infusion catheterization, that is, after the puncture needle penetrates into the central vein, the guide wire is first placed, then the needle is withdrawn, the skin is expanded with a skin dilator, and then inserted into the central vein along the guide wire. catheter. The shortcoming of this method is: 1, when putting into guide steel wire along puncture needle too long, guide steel wire may touch the heart, causes arrhythmia very likely. 2. It is necessary to apply a skin dilator along the guide wire to expand the skin. If the puncture personnel are poorly skilled, it is very likely that the guide wire will be bent, making it difficult to insert the catheter, and thus the puncture will fail. 3. The catheter is relatively thick, and ...

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: 1. If the guide wire is too long along the puncture needle, the guide wire may touch the heart, which may cause arrhythmia

2. It is necessary to apply a skin dilator along the guide wire to expand the skin. If the puncture personnel are not skilled enough, it is very likely that the guide wire will be bent, making it difficult to insert the catheter, and thus the puncture will fail.

3. The catheter is thicker, and the risk of central venous catheter-related infection is high

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