PICC cathetering method based on controllable magnetic field guidance

Abstract

The invention relates to the technical field of peripherally inserted central catheter (PICC) cathetering, and in particular relates to a PICC cathetering method based on controllable magnetic field guidance. The method comprises the following steps: preparing objects, making a patient and the environment ready, and making an operator ready; preparing a probe; placing a guide wire into a Sedinggerpuncture needle; withdrawing the puncture needle to enlarge a puncture point; pushing a PICC catheter into a vein along the guide wire; feeding the PICC catheter into a blood vessel from a dilator; and starting a magnetic field detector to observe the position of the catheter, wherein a controller guides the orientation of the catheter, and the position of the catheter can be observed through a display. The head part of the guide wire can control the size of a magnetic field; a magnetic field detector is arranged outside the guide wire, so that the position of the guide wire can be confirmedin real time; and a controllable electromagnet is arranged outside the guide wire, so that the orientation of the guide wire can be guided. The whole process is visualized, and no ionizing radiation exists; and the orientation of the guide wire can be controlled.

Description

technical field [0001] The invention relates to the technical field of PICC catheterization, in particular to a PICC catheterization method based on controllable magnetic field guidance. Background technique [0002] Central venous catheterization via peripheral venipuncture, also known as PICC catheterization, is a central venous catheter inserted through a peripheral vein, and is a safe and reliable channel for intravenous infusion. It is mainly suitable for patients who lack peripheral venous access and need repeated infusion of irritating drugs or hypertonic viscous fluids, as well as patients who need to use pressure pumps or pressurized infusions, repeated infusions of blood products, multiple blood collections, and long-term infusion therapy; Large veins have fast blood flow, which can reduce the stimulation of drugs on blood vessels, effectively protect upper limb veins, and provide a convenient, safe and painless venous access for critically ill, rescue, long-term i...

AI Technical Summary

Problems solved by technology

At present, the commonly used catheterization techniques include ordinary catheterization technology, MST and MST technology under ultrasound. All three technologies have the risk of catheter entering the internal jugular vein. How to improve the success rate of PICC catheterization is still an important issue in the development of this technology.

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