Oral fixator and manufacturing method thereof

Abstract

The invention discloses an oral fixator, which relates to the field of medical instruments. The oral fixator comprises a fixator body; the inner part of the fixator body has a hollow structure, and the fixator body is filled with an anti-radiation material; one side of the fixator body is provided with a hard palate surface contacted with the oral hard palate, and the other side is provided with a dorsal surface of a tongue contacted with the tongue; the edge of the dorsal surface of the tongue is provided with a tongue pressing tail for pushing a tongue root part forwardly and to a mandible direction; and the tongue pressing tail is located on the oral fixator corresponding to one end of the tongue root part. The oral fixator body is set to have the hollow structure, the oral fixator body is internally filled with the anti-radiation material, rays can be effectively blocked, normal tissues can be prevented from irradiation, discomforts such as oral mucosa injuries, taste injuries and difficult mouth opening can be prevented from happening to the patient, and the radiotherapy accuracy and the effects can be improved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an oral fixture and a manufacturing method thereof. Background technique [0002] Tumor radiation therapy is a method to treat malignant tumors by using radiation such as α, β, γ rays produced by radioactive isotopes and x-rays, electron beams, proton beams and other particle beams produced by various x-ray therapy machines or accelerators. [0003] Radiation therapy for oncology, or radiotherapy for short, is the treatment of cancer with radiation. Radiation therapy has a history of more than a century. After Roentgen discovered X-rays and Marie Curie discovered radium, they were soon used in the clinical treatment of malignant tumors. Up to now, radiotherapy is still an important local treatment method for malignant tumors. About 70% of cancer patients need radiotherapy in the course of cancer treatment, and about 40% of cancers can be cured with radiotherapy. The role and sta...

AI Technical Summary

Problems solved by technology

The traditional method is to push the tongue away from the high-dose area with a semi-cylindrical small cork in the patient's mouth. However, due to the inconsistent oral physiological conditions of each patient, the poor repeatability of the position of the cork in each radiotherapy, and even the wrong position of the cork in the mouth, resulting in During radiotherapy, the incidence of oral radioactive radiation injury remains high, often causing patients to refuse to eat, lose weight, decrease immune function, decrease treatment tolerance or even refuse treatment due to severe oral pain.

[0005] The original unimproved oral fixator can only ensure accurate fixation and keep normal tissues away from high-dose areas of radiation, but it still keeps normal tissues within the range of low-dose radiation. Conventional treatments are generally about 15 to 20 times, so The normal tissue is exposed to low-dose radiation for many times, and the long-term accumulation of radiation dose will inevitably cause radiation damage

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