One-time mold for injection molding intraocular implants prepared from different materials

Abstract

The invention discloses a one-time mold for injection molding intraocular implants prepared from different materials, and belongs to the technical field of medical devices. The one-time mold comprisesa formed mold formed by an upper mold and a lower mold, wherein a sprue is arranged in the center of the top part of the upper mold; integrated positioning holes are symmetrically formed in four corners of the top part of the upper mold; a mold cavity is arranged on the top part of the lower mold; cooling troughs are symmetrically arranged on the left side and the right side of the mold cavity; and four groups of positioning pin pillars adaptive to the positioning holes are further fixedly connected to four corners of the top part of the lower mold. According to the one-time mold for injection molding the intraocular implants prepared from the different materials provided by the invention, through the formed mold formed by the upper mold and the lower mold, the mold can be disassembled conveniently; the cooling troughs are arranged on two sides of the mold cavity at the same time, so that the mold can be quickly cooled and integrally formed; and the production cost can be reduced, meanwhile, a surface of the mold has no need to be cleaned repetitively, the manpower input is reduced, and the service life of the mold is prolonged.

Description

technical field [0001] The invention discloses a disposable mold used for injection molding intraocular implants made of different materials, and specifically belongs to the technical field of medical instruments. Background technique [0002] The use of intraocular artificial lenses to replace a damaged or diseased native lens to improve vision, or to work in conjunction with the native lens, has been widely accepted since as early as the 1980s. Accordingly, various IOLs have been developed for surgical implantation into the posterior or anterior chamber of the eye. Commercially available IOLs typically contain an optic or multiple haptics or haptics that ensure proper positioning of the optic within the eye. The optics of these IOLs are typically made of harder or rigid materials, or softer, elastic polymers production. Existing molding techniques for IOLs have multiple deficiencies. The current molding process is labor-intensive. Many elastomers used to mold IOLs, such ...

AI Technical Summary

Problems solved by technology

Existing molding techniques for IOLs have multiple deficiencies. The current molding process is labor-intensive. Many elastomers used to mold IOLs, such as silicone elastomers, often leave residues on stainless steel molds. Due to this residue, they must be Cleaning during each molding cycle, in addition to being labor-intensive, the cleaning requirements result in long equipment downtimes, resulting in increased production costs, and mold damage due to repeated cleaning of stainless steel molds. surface wear

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