Subretinal fluid drainage device and collector

Abstract

The invention discloses a subretinal fluid drainage device and a collector. The subretinal fluid drainage device comprises a sleeve, and the sleeve is provided with a first bag body and a second bag body. During subretinal fluid drainage, the first bag body and the second bag body are located at two sides of the sclera respectively, and the first bag body and the second bag body are both in bulgedstates, so that positioning of the sleeve is realized, the sleeve is prevented from sliding and sliding away from the sclera, the safety of subretinal fluid drainage is ensured, and the subretinal fluid drainage can be smoothly carried out.

Description

Technical field [0001] The present invention belongs to the technical field of medical device, and more particularly to a retinal under fluid drainage device and a collector. Background technique [0002] In the clinical work of ophthalmology, retinal disengagement (bleeding or pore sources) is a serious symptom of vision, these symptoms can be found in some eye trauma, inflammation, and internal eye surgery, and remove the retina as a test specimen, available In further laboratory testing, it is a potential disease diagnosis, identifying diagnosis and development direction. [0003] At present, the function of the retinal liquid drainage device on the market is mostly to achieve retinal discharge, such as the Chinese patent (CN203370018U) discloses a retinal subtracheal drainage valve composed of a drain tube, a negative pressure valve, a fixed ring, and an implantation. It is necessary to use 5ml needle to pierce the sclera wall, which is fixed by the drainage valve and the eye...

AI Technical Summary

Problems solved by technology

[0003] Most of the functions of the subretinal fluid drainage devices currently on the market are to realize retinal drainage. For example, Chinese patent (CN203370018U) discloses a subretinal fluid drainage valve composed of a drainage tube, a negative pressure valve, and a fixing ring. Previously, a 5ml needle was needed to puncture the scleral wall, the drainage valve and the eyeball wall were sutured and fixed during the operation, and the negative pressure valve was used to continuously drain the subretinal fluid, which was taken out after 2-3 weeks. It had the following defects: 5ml needle puncture increased retinal risk of sub- or retinal hemorrhage; need for secondary surgery; increased risk of infection; possibility of drain valve falling into the eye or sub- / outside the conjunctiva; rejection

Another example is that Chinese patent (CN201668586U) discloses a retinal liquid discharge device consisting of a positioning tube, a liquid discharge needle, and a push rod. It has the following drawbacks: the small needle does not ensure a steady outflow of subretinal fluid

Another example is that the Chinese patent (CN209122625U) discloses a puncture needle comprising a puncture needle, a needle seat, and a three-way structure. Drainage is carried out by kneading a flexible cystic structure. It has the following defects: it is difficult to evaluate the drainage volume, and the operation process In the middle, the condition of the fundus cannot be grasped in time

Therefore, the subretinal fluid drainage device in the prior art is less safe, and there are certain hidden dangers that make the drainage difficult to complete smoothly, and lack the function of collecting subretinal fluid, making it difficult to provide useful information for disease diagnosis and identification

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