Preparation method of personalized negative pressure suction cup for skin grafting of vitiligo

Abstract

The invention discloses an individual negative pressure suction cup manufacturing method for leucoderma skin-grafting. A front-end camera is used for performing image collection on a focal zone of a patient, then, collected images are processed through a computer, data of an obtained actual focal zone is imported into three-dimensional modeling software for negative pressure three-dimensional model generation, then, a negative pressure suction cup highly matched with the focal zone of the patient can be obtained through printing of a 3D printer, the blister suction frequency can be decreased to the largest extent by means of the negative pressure suction cup manufactured through 3D printing, the operation pain of the patient is relieved, the epidermis transplanting time efficiency is greatly improved, and the transplanted epidermis is highly matched with the shape of the focal zone, so that scars will not be formed, and the post-treatment skin appearance will not be affected.

Description

technical field [0001] The invention relates to the field of preparation of medical auxiliary devices, in particular to a method for preparing a personalized negative pressure suction cup for skin grafting of vitiligo. Background technique [0002] Vitiligo is a common multiple-occurrence pigmented skin disease, and it is one of the three major chronic skin diseases in the world. Its clinical features are mainly manifested by localized or generalized depigmentation due to the reduction or disappearance of melanocytes, forming leukoplakia, such as figure 1 The schematic diagram of the lesion area on the back of the hand of a patient with vitiligo is shown, in which the circular area on the back of the hand is the lesion area. At present, the pathogenesis of vitiligo is still unclear, and it can occur in various parts of the body, such as the back of the fingers, wrist, forearm, face, neck, etc. The size and shape of the affected areas are different, and there is no obvious ge...

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Problems solved by technology

However, since porous negative pressure suction cups are generally used at present, the shape and size of the suction cups are fixed, such as figure 2 As shown, because the shape of the suction cup is fixed, the skin grafts obtained by negative pressure blisters are all round, which often cannot match the actual lesion shape, and it takes multiple suctions to completely remove the skin lesion, which makes the transplanted skin The joints of the slices are difficult to connect, and there will still be gaps between the skin slices, resulting in a cobblestone-like pigment recovery in the recipient area, which cannot achieve a perfect therapeutic effect

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