Piston type eye-drops dripping device

Abstract

The present invention discloses a piston type eyedrop dripping device and relates to a dispenser of liquid dripping. The piston type eyedrop dripping device comprises an eyedrop battle and a pressurizing device, wherein, the pressurizing device comprises a rubber tube. One end of rubber tube is connected with a micro gasbag. The other end is connected with a base. Furthermore screw thread is in the base. The base of eyedrop bottle is provided with screw thread matched with the screw thread in the base. A rubber piston is provided in the eyedrop bottle. The opening of base is provided with a base cover. The surface of base cover is provided with a reflector. One end of the base cover is connected with the base through a hinge. The piston type eyedrop dripping device has the advantages of reasonable structure designing, separation of eyedrop liquid from air, possessing of an aligning device, effective prevention to the eyedrop liquid, accurate control to the eyedrop liquid amount, etc.

Description

Technical field: [0001] The present invention relates to a medical device, in particular to a liquid infusion dispensing device, especially a piston type eye drop instillation device. Background technique: [0002] At present, external medical eye drops are generally packaged in common soft plastic bottles. Because the eye drops need to borrow air during use, and the dust and bacteria in the air will pollute the liquid medicine, causing the liquid medicine to be oxidized and deteriorated, and the osmotic pressure to change. For this reason, it is clinically used to add bacteriostatic agents to the medicinal solution to solve the above problems, but the addition of this bacteriostatic agent is only suitable for superficial conjunctivitis, and eye drops for cornea, trauma or surgery are not allowed to use bacteriostatic agents. agent. In addition, antibacterial agents are irritating to the eyes to varying degrees, so the use of antibacterial agents has certain limitations. ...

AI Technical Summary

Problems solved by technology

Because the eye drops need to borrow air during use, and the dust and bacteria in the air will contaminate the liquid, resulting in the liquid being oxidized and degraded, and the osmotic pressure changing, which cannot guarantee the quality of the liquid and the strict requirements for intraocular aseptic medication.

For this reason, it is clinically used to add bacteriostatic agents to the medicinal solution to solve the above problems, but the addition of this bacteriostatic agent is only suitable for superficial conjunctivitis, and eye drops for cornea, trauma or surgery are not allowed to use bacteriostatic agents. agent

In addition, antibacterial agents are irritating to the eyes in varying degrees, so the use of antibacterial agents has certain limitations

In addition, many patients with eye diseases often cannot accurately instill the eye drops into the eye position when instilling eye drops, resulting in waste and affecting the curative effect

Trace it to its cause; the one, because the mouth of existing eye drops bottle is too close to the eye, the correct position of the mouth of the mouth cannot be seen clearly; It is necessary to lift up and control the amount of water, so the nervous system will cause the arm to tremble due to tension, making the drops of the medicine fall off.

The current anti-shake devices use utensils to fix the eye drops bottle on the eye, and contact with the surrounding area of ​​the eye, which is easy to cause pollution and cross-infection

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