Guide wire

Abstract

The invention relates to a guide wire. The guide wire comprises a core shaft and a coating layer, wherein the coating layer coats the core shaft; a developing element is arranged near one end of the head of the guide wire; the developing element comprises a head developing area, a middle developing area and an end developing area which are sequentially arranged in the axial direction of the core shaft; the developing ability of the middle developing area is different from the developing abilities of the head developing area and end developing area; the lengths of the head developing area, middle developing area and end developing area are respectively within different preset length ranges, so as to compare the different developing areas and the developing images of surrounding calculus inthe operation process, thereby estimating the size of the calculus. The guide wire has the advantage that the size of the calculus can be simply and reliably estimated by a doctor in the operation process, so as to quickly and accurately select the most suitable operation parameters.

Description

technical field [0001] The invention relates to medical equipment, in particular to a guide wire. Background technique [0002] Guide wire is one of the necessary auxiliary medical equipment in surgical series, especially in urological endoscopic surgery. use. When in use, various mirrors, catheters, double J tubes and other tubes can be placed along the guide wire. In particular, the guide wire plays a very important role in the lithotripsy operation of calculi, but there are three problems in the existing guide wires: one is that the existing guide wires in the lithotripsy operation, when the guide wire reaches the calculus During treatment, the specific size of the stone cannot be known, which leads to the inability to choose the most suitable laser wavelength or electromagnetic wave wavelength for lithotripsy; second, the existing guide wire has no scale mark or the scale mark is unreasonable, and the doctor is in the process of inserting the guide wire. , the specifi...

AI Technical Summary

Problems solved by technology

In particular, the guide wire plays a very important role in the lithotripsy operation of calculi, but there are three problems in the existing guide wires: one is that the existing guide wires in the lithotripsy operation, when the guide wire reaches the calculus During treatment, the specific size of the stone cannot be known, which leads to the inability to choose the most suitable laser wavelength or electromagnetic wave wavelength for lithotripsy; second, the existing guide wire has no scale mark or the scale mark is unreasonable, and the doctor is in the process of inserting the guide wire. , the specific length of the guide wire cannot be accurately known, which may easily lead to the insertion of the guide wire being too short to reach the desired position such as stones, or the insertion of the guide wire is too long to damage the cavity and cause medical accidents; It is a long distance, so the surface smoothness of the guide wire is also a problem at present, and it will also cause infection due to bacteria during the insertion process

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