Aqueous humor collection device

Abstract

The invention discloses an aqueous humor collection device, comprising: an outer cylinder body including a puncture needle installation end and a liquid collection tube installation end; a puncture needle fixedly installed on the puncture needle installation end and including the puncture needle inner end and the puncture needle outer end The liquid collection tube assembly includes a liquid collection tube and a pipe plug for sealing the mouth of the liquid collection tube; wherein, the outer peripheral wall of the liquid collection tube assembly is provided with an annular groove and an annular limiter set by the hoop annular groove, The radially outer end of the annular stopper abuts against the inner peripheral wall of the outer cylinder, the radially outer edge of the pipe plug forms a smooth contact with the inner peripheral wall of the outer cylinder and is provided with a pipe plug arranged along the extending direction of the outer cylinder cavity Exhaust channel, the barrel cavity of the outer cylinder is connected to the tube plug exhaust channel in the cavity area between the tube plug and the installation end of the puncture needle. By adopting the aqueous humor collection device of the present invention, the safety and reliability during anterior chamber puncture can be improved, and the accuracy of subsequent aqueous humor detection can be improved.

Description

technical field [0001] The invention relates to the technical field of medical appliances, in particular to an aqueous humor collection device. Background technique [0002] Anterior chamber puncture is a medical technique that pierces the cornea of ​​the eyeball with instruments to allow aqueous humor to flow out. It has important application value in clinical research in ophthalmology. Drain the room. [0003] For now, there is no unified special equipment and consumables for the implementation of anterior chamber puncture. In actual clinical work, 1ml syringe needles are often used as anterior chamber puncture needles. However, in the process of puncturing with the 1ml syringe needle, it is difficult to control the drainage speed of aqueous humor. When the liquid is drained too fast, it will cause a rapid drop in intraocular pressure, and even cause other complications in severe cases. In addition, since the aqueous humor in the syringe cavity needs to be further transf...

AI Technical Summary

Problems solved by technology

However, in the process of puncturing with the 1ml syringe needle, the drainage speed of aqueous humor is difficult to control. When the liquid is drained too quickly, it will cause a rapid drop in intraocular pressure, and even cause other complications in severe cases.

In addition, since the aqueous humor in the syringe cavity needs to be further transferred to the microcentrifuge tube after the aqueous humor collection is completed, the aqueous humor will be wasted during the process, and the aqueous humor is separated from the outside world during the transfer process. The risk of contamination due to environmental exposure, resulting in biased test results and poor reliability

[0004] It can be seen that at this stage, it is urgent to develop a new type of acquisition device that can solve the problems of poor safety and reliability in the anterior chamber puncture process.

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