3D-printed head mold for gamma knife surgery and manufacturing method and fixation method thereof

Abstract

The invention provides a 3D-printed head mold for gamma knife surgery and a manufacturing method and a fixation method thereof. The 3D-printed head mold comprises a printed head mold body and an adjusting gasket; and the printed head mold body is manufactured by a 3D printing process, the inner surface of the printed head mold body can fit with the head of a patient, and the bottom of the printedhead mold body is a part opposite to the occipital bone of the skull of the patient. When in use, the bottom of the printed head mold body is placed on the adjusting gasket, and the printed head moldbody and the adjusting gasket are fixed on an operation moving bed. The manufacturing method of the 3D-printed head mold includes the following steps: first, acquiring 3D data of the head of a patient, preparing inverted mold data according to the 3D data of the head of the patient, and printing the printed head mold body of which the inner surface can fit with the head of the patient through the3D printing process according to the inverted mold data. The 3D-printed head mold of the invention is designed according to the individual difference of the human body and can closely fit with the head of the corresponding patient, so that the head mold can stabilize the head of the patient and ensure the accurate positioning of a gamma knife.

Description

technical field [0001] The present invention relates to, specifically, a 3D printing head mold for gamma knife surgery, a manufacturing method and a fixing method thereof. Background technique [0002] The problem of positioning accuracy during Gamma Knife treatment has always been an important problem in medical physics. In order to achieve accurate positioning, the patient needs to be fixed first. At present, there are two main methods of fixing the patient’s head in Gamma Knife positioning. Rigid fixation and flexible fixation. [0003] The first type of rigid fixation is to implant 4 head nails for rigid fixation on the head. The head nails are rigidly connected to the metal helmet, and the helmet is rigidly connected to the treatment bed. Its advantages: high accuracy, good repeat positioning, can eliminate the relative error from the source, so that the error is almost zero. Its disadvantages: it will cause physical trauma, psychological pressure and even fear of the...

AI Technical Summary

Problems solved by technology

Its disadvantages: it will cause physical trauma, psychological pressure and even fear of the patient, the treatment process (10-30 minutes) will bring great discomfort to the patient, and the gap between multiple treatments cannot be removed.

Its disadvantages: this kind of flexible fixer has a certain degree of flexibility, and there is currently no way to eliminate the error caused by the patient's own body movement or twist (especially older patients) after entering the treatment cabin

[0005] Through visits to radiotherapy departments of many hospitals, it is found that new fixation methods are urgently needed to make up for the requirements that cannot be met by current fixation methods:

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