Drug delivery flow control injector

Abstract

The invention discloses a drug delivery flow control injector, and relates to the field of medical instruments. The injector based on a micro motor comprises an injection device used for outputting aninhibitor, a propulsion device used for extruding the inhibitor to be output to a needed part, and a storage device used for containing the inhibitor. The injection device is divided into a cutter head, a tip end, a fine needle and a needle tube from top to bottom; the reciprocating propulsion device comprises an internal micro motor, an external protective housing, a screw rod piece, a nut bodyand a piston; and a containing box is arranged in the storage device, so that medicine needed in a process of being injected into the human eyes can be quantitatively loaded. According to the invention, the quantitative medicine can uniformly cover the surface of the eyeball continuously in an operation, the conveying dosage can be better controlled by pumping force, the convenience of the operation is improved, the speed is controllable, the operation is sensitive, and the defects of low precision and difficult control caused by a manual pushing mode of a traditional injector at present can be overcome.

Description

technical field [0001] The invention relates to the field of medical devices, and more specifically, to a flow-control injector for drug delivery. Background technique [0002] With the continuous improvement and popularization of microsurgical techniques, there are more and more ophthalmic operations, the operation process is more delicate, and the operation is more accurate. Cataract is a relatively common eye disease today. Clinically, phacoemulsification surgery is generally used, but patients will have some complications after surgery, such as refractive error, dry eye, corneal astigmatism, etc., and post-cataract is also one of them. kind of. Post-cataract is caused by the proliferation of epithelial cells remaining in the lens after cataract surgery, resulting in lens fibers migrating to the capsule and attaching to it, and forming a membrane in the pupil area, resulting in opacity of the posterior capsule of cataract patients and progressive vision loss. Decline, s...

AI Technical Summary

Problems solved by technology

[0003] The traditional injectors used to deliver inhibitors in the current market are all manual injections. If you do not pay attention to the excessive amount or the speed is too fast, there will be great safety hazards, which reduces the safety of ophthalmic surgery and the efficiency of the surgical process.

The common ophthalmic surgery injector meets the basic surgical requirements and can deliver the inhibitor to the designated location, but it still needs to be manually pushed to deliver the inhibitor, which is inconvenient to use and increases the labor burden of the doctor

At present, the devices for surgical delivery of inhibitors in hospitals tend to be artificial, and the efficiency is unstable. Therefore, a bolus that can deliver inhibitors quantitatively is needed, which can deliver inhibitors accurately, quantitatively, and stably, so as to improve the safety of surgical treatment and the safety of surgery. Success rate

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