Disposable central vein puncture kit

A technology for venipuncture and central venous catheters, applied in the direction of catheters, guide needles, etc., can solve the problems of high probability of central venous catheter-related infection, puncture failure, thick catheters, etc., to reduce the incidence of catheter-related infections, Improved comfort and the effect of thinner catheter diameters

Inactive Publication Date: 2013-01-30
刘华清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 punctu

Method used

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  • Disposable central vein puncture kit
  • Disposable central vein puncture kit
  • Disposable central vein puncture kit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] From figure 1 , figure 2 , image 3 It can be seen from the figure that it is composed of a central venous catheter 1 and a puncture needle 2; there is a catheter sheath 3 outside the puncture needle, and there is an easy-to-tear fracture indentation on both sides of the catheter sheath 3. The length of the catheter sheath 3 is not less than 7cm, the inner diameter is 2.2mm, the length of the central venous catheter is not less than 22cm, the outer diameter is 2mm, and there are two drug inlet connections at the tail. Catheter sheaths are made of hard medical device plastic.

Embodiment 2

[0015] From Figure 4 It can be seen from the above that, the difference between this embodiment and embodiment 1 is that there is an easy-tear strip with broken indentations on both sides on the outer sheath of the catheter.

[0016] When in use, when the puncture needle is inserted into the vein, the outer catheter sheath is inserted into the vein at the same time (this has been achieved in the prior art), and then the puncture needle is withdrawn, the central venous catheter is inserted from the catheter outer sheath, and then the catheter outer sheath is inserted into the vein. The sheath is withdrawn along the central venous catheter, torn and removed from the fracture indentation, such as figure 2 shown. That is, the intravenous infusion line is completed.

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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 ...

Claims

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Application Information

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IPC IPC(8): A61M25/00A61M25/06
Inventor 刘华清
Owner 刘华清
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