Puncturing and cathetering method and device for superficial venous indwelling needle

Abstract

The invention belongs to the field of medical instruments, particularly relates to intelligent equipment for increasing the one-time success rate of puncturing and cathetering of a superficial venousindwelling needle and a using method for the intelligent equipment and aims at solving the problem of low one-time success rate of puncturing and cathetering of the superficial venous indwelling needle. By adopting the intelligent equipment and the using method disclosed by the invention, the two core problems of limited safety ranges of vein displacement and diameter puncturing during venous puncturing and cathetering are solved; spans between a fixed arm to be puncturing a proximal cardiac vein and a fixed arm to be puncturing a distal cardiac vein are utilized to be sequentially pressed, sothat the vein is fixed and keeps a the filling state; the position of the vein wall and an operation space for puncturing and cathetering are determined and verified by using an infrared laser lineararray between the fixed arm at the proximal end and the fixed arm at the distal end; and safety puncturing and cathetering are realized by inserting a needle into a blood vessel in a direction parallel to the medial axis or inserting the needle forwards and downwards into the blood vessel with forming an included angle with the medial axis of the blood vessel. The intelligent equipment has the beneficial effects that the success determinacy of superficial vein puncture is greatly improved, pains of patients are relieved, and the medical safety is improved.

Description

technical field [0001] The invention belongs to the field of intelligent medical devices, and in particular relates to an operation method and a device for improving the one-time success rate of superficial venipuncture and catheterization. Background technique [0002] Superficial venipuncture is a key operation for clinical venous blood collection, intravenous drug administration, and fluid replacement. At present, it is basically done manually by medical staff, and the success rate of one-time puncture varies. As a result, medical efficiency is reduced, patients' pain is increased, and in severe cases, it even affects the harmonious relationship between doctors and patients. The reasons for this uncertainty mainly stem from: 1. The medical staff can only obtain two-dimensional information on the distribution of veins and roughly estimate the depth and diameter of the veins, and cannot accurately judge whether the needle tip puncture depth touches the upper wall of the vei...

AI Technical Summary

Problems solved by technology

The traditional operation emphasizes that the angle between the puncture needle and the skin should be reduced as much as possible to increase the safe advancing distance of the needle tip after it penetrates into the vein. The needle travels too long under the skin and under the skin, which increases the patient's pain. Second, the vein will slide and roll during the puncture process. The sharpness

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