Tenon capsule medicine injection device

Abstract

The invention relates to a Tenon capsule medicine injection device which comprises a conduit and a connector, wherein the conduit comprises a proximal part, a bending part and a distal part, the connector comprises a connecting part and an interface, the connecting part is connected with the proximal part of the conduit, the interface is used for connecting an injection device, an included angle alpha is formed between the proximal part and the distal part, one or more medicine injection openings is / are arranged on the distal part, and no opening is formed in the distal tail end of the distal part. The Tenon capsule medicine injection device has the advantages that the possibilities of complication in medicine injection of a Tenon capsule are greatly reduced, the safety of a patient is improved, the Tenon capsule medicine injection device is simple and easy to use, the difficulty in medicine injection of the Tenon capsule is greatly reduced, and in addition, a medicine is conveniently delivered to an anterior segment and a posterior segment of an eye so as to treat an anterior segment or posterior segment disease.

Description

technical field [0001] The invention relates to an eye medicine injection device, in particular to a medicine injection device through the retrobulbar Tenon's capsule. Background technique [0002] Tenon subcapsular injection is a commonly used technique in ophthalmology. It is often used to inject hormones to treat inflammation of the anterior and posterior segments. Through this operation, the drug can be injected under the Tenon's capsule, and the concentration of the drug around the eye can be increased by using the drug to penetrate the sclera at the back of the eye, so that the drug can take effect quickly, and compared with direct injection through the vitreous cavity, the complications of this operation are less And side effects are very small. [0003] Although Tenon subcapsular injection has the advantages of less complications and easy operation, there is still a certain risk of complications in actual operation. The method of Tenon subcapsular injection general...

AI Technical Summary

Problems solved by technology

However, for different needle insertion positions and eyeballs with different curvatures, it is necessary to manufacture devices with different curvatures and lengths of the distal part of the "sickle", which reduces the ease of use of the device and increases the complexity of use.

In addition, since the device is designed to inject a small amount of drug to form a drug reservoir, it does not pay attention to the problem of locally injecting a large injection volume and injection speed, and the tip head of the distal part does not have peeling effect

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