Disposable aqueous humor specimen collecting device

Abstract

The invention discloses a disposable aqueous humor specimen collecting device, and relates to the technical field of intraocular fluid detection, the disposable aqueous humor specimen collecting device comprises a cylinder barrel assembly, and a needle head piston assembly and a spring assembly which are arranged in the cylinder barrel assembly, the needle head piston assembly comprises a telescopic piston, a telescopic sleeve, a puncture needle head and a puncture needle body, the outer wall of the telescopic piston abuts against the inner wall of the cylinder barrel assembly, a telescopic sleeve is slidably arranged in the telescopic piston, a puncture needle body is arranged in the telescopic sleeve, a puncture needle head is arranged at one end of the puncture needle body, and a spring assembly is arranged on the outer wall of the puncture needle body. The aqueous humor specimen collection device can effectively avoid intraoperative side injury caused by movement of eyeballs of a patient during an operation, meanwhile avoids loss of the amount of intraocular fluid specimen collected by an injector, accurately controls the volume of the sampled intraocular fluid, is convenient and rapid in operation process, and can obviously relieve pain of the patient.

Description

technical field [0001] The invention relates to the technical field of intraocular fluid detection, in particular to a disposable aqueous humor sample collection device. Background technique [0002] The internal tissues of the eyeball pass through the blood-eye barrier and establish a unique immune microenvironment that is different from other tissues and organs. Some intraocular diseases can be confined to this microenvironment, thus lacking extraocular manifestations; although some patients have systemic manifestations and positive auxiliary examination results, it is difficult to judge the relationship between ocular manifestations and systemic manifestations and results. The detection of intraocular fluid can directly reflect various information of the intraocular microenvironment, which is of great value in the diagnosis and differential diagnosis of various infectious and neoplastic diseases. And can be used for prognosis judgment. Aqueous humor is the most common t...

AI Technical Summary

Problems solved by technology

For beginners and unskilled doctors, anterior chamber puncture will also have serious adverse consequences, such as cataract damage to the lens leading to decreased vision; damage to the iris to cause anterior chamber hemorrhage, etc.

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