Marking pen used for accurately scribing during radiotherapy

Abstract

The invention discloses a marking pen used for accurately scribing during radiotherapy. The marking pen comprises a pen cap, a pinhead-type pen point, an ink storage refill, a pen holder, a rubber cap, a cotton core canister, an alcohol storage cotton core and a cotton core cap, wherein the pinhead-type pen point is positioned at the front end of the pen holder; the ink storage refill is positioned in the penholder; the pinhead-type pen point is connected with the ink storage refill; the pen cap is buckled at the front part of the pen holder; the rubber cap is positioned at the rear end of the pen holder; the cotton core canister is fixed at the rubber cap; the alcohol storage cotton core is positioned in the cotton core canister; the cotton core cap is buckled at the cotton core canister; and the exposed part of the pinhead-type pen point has the length of 30mm and the diameter of 1mm. The marking pen used for accurately scribing during radiotherapy is convenient to carry, simple in structure and convenient in use, and can be used for marking the body position of a patient, accurately scribing and drawing points, accurately marking and improving the repositioning precision during radiotherapy; and marking liquid used in the marking pen has less possibility of dropping off and can be acquired conveniently; and the marking pen has the advantages of convenience in carrying, accurate marking, simple structure, convenience in use and the like.

Description

technical field [0001] The invention relates to a marking pen used for precise marking in radiotherapy, in particular to a portable pen suitable for marking precise markings such as marking lines and dots in different parts of radiotherapy. Background technique [0002] Since Coutard first reported the use of X-rays in the treatment of laryngeal cancer and tonsil cancer in 1934, body surface marking in radiotherapy has become an indispensable part of positioning before treatment and performing irradiation after repeated positioning during treatment. In the past, radiotherapy marks were mostly made of wooden or bamboo flat rods dipped in scratch liquid to draw lines or dots. Due to the limitation of uneven thickness of wooden or bamboo rods, the radiotherapy marks drawn were often uneven in thickness. , and due to the uneven adhesion of the scratching liquid on the surface of the rod, accidental dripping of the scratching liquid often occurs to cause flaky contamination, whic...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned prior art, the present invention provides a marking pen for precise scribing in radiotherapy, which solves the problem in the prior art that the accuracy of radiotherapy is restricted due to the absence of special equipment during the scribing process

Images