Multifunctional ophthalmic microsyringe

Abstract

The invention discloses a multifunctional ophthalmic microsyringe comprising a needle, a needle tube, a flexible tube, and a quantitative storage sac for storing drugs or cells. One end of the quantitative storage sac is connected with the needle, the other end of the quantitative storage sac is connected with the flexible tube, and the flexible tube leads to the needle tube. The multifunctional ophthalmic microsyringe has the advantages that the risk of ocular tissue piercing caused by incoordination in operations by two operators can be overcome, injection precision is ensure, especially waste of expensive drugs is reduced, cell activity is ensured, effectiveness and uniformity in drugs, cell factors or therapeutic cells are guaranteed, and therapy effect is improved; the potential hazards of pollution and infection are reduced; the multifunctional ophthalmic microsyringe is low in production cost and applicable to single use; a detoxing program is omitted, so that the risks of iatrogenic cross-infection and contamination between injected drugs or injected cells can be avoided effectively.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a multifunctional eye micro-injector. Background technique [0002] At present, pen-type micro glass syringes are used both at home and abroad to inject intraocular drugs, cytokines or therapeutic cells. Because the micro-syringe is relatively long (generally, the length of the metal needle is 30mm, the length of the glass needle tube is 85mm, and the length of the whole syringe is 128mm), the operator inserts the injection needle into the intraocular parts such as the anterior chamber, vitreous cavity or subretinal cavity, holding the syringe, and needs an assistant to press the needle The handle injects the injection into the inner cavity of the eye, it is difficult for the assistant to coordinate with the operator, and the needle can easily break through and damage the tissues adjacent to the injection site, such as the iris, lens or retina, etc., resulting in inje...

AI Technical Summary

Problems solved by technology

Because the micro-syringe is relatively long (generally, the length of the metal needle is 30mm, the length of the glass needle tube is 85mm, and the length of the whole syringe is 128mm), the operator inserts the injection needle into the intraocular parts such as the anterior chamber, vitreous cavity or subretinal cavity, holding the syringe, and needs an assistant to press the needle The handle injects the injection into the inner cavity of the eye, it is difficult for the assistant to coordinate with the operator, and the needle can easily break through and damage the tissues adjacent to the injection site, such as the iris, lens or retina, etc., resulting in injection failure and intraocular hemorrhage a series of complications

Commonly used glass micro-syringes, the inner diameter of the needle is 0.0826 ~ 0.184mm. At present, the disinfection method of soaking in disinfectant after washing is mostly used. Due to the small inner diameter of the needle, insufficient washing or soaking can cause iatrogenic cross-infection or injection. Pollution

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