Peripheral venous catheter and use method thereof

Abstract

The invention relates to a peripheral venous catheter and a use method thereof, and belongs to the technical field of medical apparatus and instruments. The peripheral venous catheter comprises an action portion and a locking portion which are connected with each other. The action portion sequentially comprises a puncture needle, an expander and a catheter body which are connected in a sleeved mode from inside to outside. The locking portion is arranged at the tail end of the expander and comprises a first locking device and second locking devices. The first locking device comprises a first locking part and a second locking part which are matched with each other, the second locking devices are arranged in pair, one end of each second locking device is provided with a first clamping part and a first limiting block, and the other end of each second locking device is provided with a second clamping part and a second limiting block. The peripheral venous catheter and the use method thereof have the advantages that the operation process is simplified, the success rate of catheter indwelling is increased, the work efficiency is effectively improved, injuries of an operator are prevented, puncture wound surfaces are reduced, and the structure is simple.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a peripheral venous catheter and a usage method thereof. Background technique [0002] The infusion set is an irreplaceable medical device for clinical infusion. In recent years, the technical development of the infusion set has made a major breakthrough. As an important part of infusion therapy, indwelling infusion is showing a trend of increasing popularity. [0003] At present, the Seidinger technique, the improved Seddinger technique or the tearable puncture needle technique are commonly used clinically to complete the corresponding operation of peripheral venous catheter indwelling in human blood vessels. Clinically used peripheral venous catheters are usually composed of components such as syringes, puncture needles, sheathed dilators or dilators, guide wires, and peripheral venous catheters, and each component is usually independent of each other. [...

AI Technical Summary

Problems solved by technology

[0004] The operation of indwelling a peripheral venous catheter generally includes the following steps: 1. Connect the puncture needle to the syringe; 2. Pierce the puncture needle into the blood vessel of the human body; 3. Withdraw the syringe to see blood, and confirm that the puncture needle has penetrated the blood vessel; 4. Remove the syringe ;5. The guide wire enters the human blood vessel along the puncture needle; 6. The puncture needle is removed; 7. The dilator is introduced along the guide wire to expand the skin; 8. The dilator is removed; 9. The peripheral venous catheter is introduced into the human blood vessel along the guide wire; 10 1. Remove the guide wire; 11. Lock the peripheral venous catheter on the skin. The whole operation process needs to be completed one by one. The puncture needle used in the tearing puncture needle technique is too thick, which can easily cause a large area of ​​blood vessel damage to the patient and cause muscle pain in the patient

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