Oral cavity support for auxiliary positioning of oral cavity tumor radiotherapy

Abstract

The invention provides an oral cavity support for auxiliary positioning of oral cavity tumor radiotherapy. The oral cavity support comprises a cylindrical support frame and a tongue depressor. The tongue depressor is inserted into the support frame; the support frame comprises an upper supporting piece and a lower supporting piece which are connected in a sliding mode in the height direction, an adjusting screw rod used for adjusting the height of the support frame is arranged between the upper supporting piece and the lower supporting piece, an observation window is arranged at one end of the tongue depressor, a plurality of shielding strips are arranged in the observation window, the shielding strips comprise a fixed shielding strip and a plurality of movable shielding strips, the fixed shielding strip is fixedly connected with the side wall of the observation window, the movable shielding strips are connected with the observation window in a sliding mode, a linkage mechanism is arranged between every two adjacent shielding strips, and the linkage mechanisms drive the shielding strips to partially or completely shield the observation window. According to the oral cavity support for auxiliary positioning of oral cavity tumor radiotherapy, the height of the oral cavity support and the width of the tongue depressor can be conveniently adjusted, meanwhile, the occlusion position is individually designed, and the oral cavity support can be suitable for being used by various patients.

Description

Technical field [0001] The present invention relates to the field of medical devices, and more particularly to an oral bracket for oral tumor radiotherapy auxiliary positioning. Background technique [0002] When the doctor is positioned to the oral tumor radiotherapy, the doctor cannot fix the normal organs within the oral cavity. It does not guarantee the good opening distance, does not have individual, repeatability, stability, and comfort, affecting the precision of radiotherapy, causing not The normal tissue that needs to be irradiated is too much in the amount of illuminance, and the acuteness of radiotherapy, and the chronic incidence is high. [0003] There are several defects in existing oral brackets: (1) The caliber cannot be adjusted, and the diameter of the oral bracket cannot be adjusted according to the degree of the patient's mouth, affecting the patient comfort; (2) The teeth of each patient are different, so the bracket Dialectability of the teeth, affect the st...

AI Technical Summary

Problems solved by technology

[0002] When doctors locate oral tumors for radiotherapy, they cannot fix the normal organs in the oral cavity well, cannot guarantee a good opening distance, do not have individuality, repeatability, stability and comfort, and affect the accuracy of radiotherapy, resulting in inaccurate The normal tissue that needs to be irradiated receives too much irradiation dose, and the incidence of acute and chronic radiotherapy is relatively high

[0003] There are several defects in the existing oral bracket: (1) the caliber cannot be adjusted, and the caliber of the oral bracket cannot be adjusted according to the degree of opening of the patient's mouth, which affects the comfort of the patient; (2) each patient's teeth are different, so the bracket The repeatability of the occlusion of the teeth is poor, which affects the stability of positioning; (3) Although the existing bracket can prevent the patient's oral cavity from closing, because the patient's oral cavity can still perform closing actions, it cannot effectively suppress the oral cavity of the tongue. The role of the main active organs, and the tongue depressors of the existing oral brackets are all flat-shaped structures that cannot cover the entire width of the tongue. For oral tumors such as hard palate cancer that need to protect the tongue, this will cause partial tongue Unnecessary exposure, and for patients with tongue cancer who have part of their tongue resected, the existing tongue depressor cannot completely suppress the remaining tongue, and the suppression effect is poor, resulting in insufficient irradiation dose for the remaining tongue. At the same time, The tongue is a movable organ, if it is not well suppressed and fixed during radiotherapy, it will affect the accuracy of the target area

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