Preparation method of orbital implant based on beta-tcp material

Abstract

The invention discloses a preparation method of an orbital implant based on a beta-tcp material. The preparation method is characterized by comprising the following steps that patient data is acquired by using a three-dimensional scanner and a digital model is established; an ocular prosthesis form is designed with the aid of a computer, typesetting is carried out, and STL data is exported; STL data is imported into a 3D printer; beta-tcp ink slurry with the solid phase content of 30%-60% is used as a raw material, slurry composed of nano sodium carbonate particles, an auxiliary solvent and a dispersing agent is used as a supporting raw material, and the orbital implant consistent with the design is formed through printing and jet forming; the soluble supporting material is washed away through water washing; after airing, sintering is carried out according to a set curve sintering process to obtain theorbital implant; and the finished product is inspected. The production speed is increased, the labor intensity is reduced, the labor cost is reduced, spraying is carried out according to needs, personalized products can be customized, and the comfort and stability after transplantation are improved; a crystal lattice structure is suitable for soft tissue climbing and ingrowth is provided; and the weight of the prosthesis is reduced.

Description

technical field [0001] The invention relates to artificial eye technology, in particular to a method for preparing an artificial eye platform based on β-tcp material. Background technique [0002] Prosthetic eye implantation is clinically the main treatment method for eye socket reconstruction and plastic surgery after enucleation for various reasons. Enucleation is a common method for the treatment of absolute glaucoma, various severe ocular traumas, intraocular malignant tumors, eyeball atrophy and other diseases. However, after enucleation, tissue atrophy and scar shrinkage will eventually lead to anophthalmic and orbital syndrome , Ptosis, tearing, poor appearance, seriously affecting the appearance, and even affecting the development of the orbit and maxillofacial area in children, bringing long-term mental and psychological burdens to patients. The implanted prosthetic eye can prevent the atrophy of the orbital tissue and fill the volume loss after the eyeball is remo...

AI Technical Summary

Problems solved by technology

The processing of traditional prosthetic eyes requires complex processes such as mold inversion, compression molding, grinding, and coloring. For example, the prosthetic eye fills the impression of the patient's eye with alginate material, and then makes the model with plaster. There is a certain hardness requirement, and the labor intensity is high

Moreover, both grinding and coloring are manually operated, which increases the risk of product damage

In addition, the prosthetic eye platform on the market usually has standard specifications and cannot be customized according to the patient's requirements, which will reduce the fit between the prosthetic eye and the patient, often make the patient feel uncomfortable when using it, and increase the risk of transplant failure

In the process of product processing, manual operation is required most of the time, and frequent contact with the outside world will increase the impurities in the prosthetic eye, causing the human body to repel it.

The basic function of the artificial eye platform is to be able to integrate into the human body, so the surface needs to have a concave structure for nerves and blood vessels to attach to. The existing artificial eye platform structures include four-hole spherical artificial eye platform, mesh-type artificial eye platform, etc. These artificial eyes The artificial eye platform can only be processed on the surface, and the internal structure cannot be constructed by artificial means, and the prosthetic eye platform products using 3D printing in the public literature only imitate the basic structure of the existing technology without substantial breakthroughs. For example, the patent publication number is CN109087387A, an individualized 3D printing multifunctional prosthetic eye seat and its preparation method, etc.

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