Adjustable expansion three-cavity two-bag lacrimal passage catheterization tube for lacrimal passage blockage

Abstract

The invention relates to an adjustable expansion three-cavity two-bag lacrimal passage catheterization tube for lacrimal passage blockage. The three-cavity two-bag lacrimal passage catheterization tube comprises a side tube, a lacrimal passage main support catheter, a wire passing tunnel, an expandable ball bag, an inner and outer tube tight connection position, an expendable ball post, a ball bagwater injection fine tube, a ball post gas injection fine tube, and a ball post gas injection tube fixing loop, wherein the expandable ball bag surrounds the upper section of the lacrimal passage main support catheter; the expendable ball post surrounds the lower section of the lacrimal passage main support catheter; the inner and outer tube tight connection position is arranged between the expandable ball bag and the expandable ball post. The adjustable expansion three-cavity two-bag lacrimal passage catheterization tube for lacrimal passage blockage has the advantages that the ball bag sizein the lacrimal sac part can be regulated in an individualized way according to the lacrimal sac size of a patient; the lacrimal passage catheterization tube is stabilized; the falling is prevented;meanwhile, the ball post in the lacrimonasal duct position can be regularly moved and expanded; the loose adhesion tissues can be reduced; the lacrimonasal duct position blockage condition is relieved; the functions of lacrimal passage sphincter muscle is trained; the operation is simple; convenience and fast are realized; the epiphora state of the patient can be better avoided; the life quality of the patient is improved.

Description

technical field [0001] The invention relates to the technical field of ophthalmic clinical treatment, in particular to an adjustable and dilated three-cavity and two-sac lacrimal duct catheter for lacrimal duct obstruction. Background technique [0002] The lacrimal duct includes the upper and lower lacrimal puncta, the upper and lower canaliculus, the common lacrimal duct, the lacrimal sac and the nasolacrimal duct. Its main function is to drain tears into the nasal cavity. Blockage in any part of the lacrimal duct is called lacrimal duct obstruction. The lower end of the nasolacrimal duct is an anatomically narrow segment that is susceptible to blockage due to nasal pathological changes. The origin of the lacrimal duct (lacrimal punctum, lacrimal canaliculus, and common lacrimal duct) is narrow and superficial, and is adjacent to the conjunctival sac, so it is easily blocked by inflammation and trauma. Patients with lacrimal duct obstruction mainly manifested as epiphora...

AI Technical Summary

Problems solved by technology

However, the diameter of the nasolacrimal duct body is larger than that of the lacrimal duct body, so the lacrimal duct stent cannot shrink and dilate the lacrimal duct, and the stent is easy to adhere to the tissue

[0007] To sum up, there is an urgent need for a balloon that can individually adjust the size of the lacrimal sac according to the size of the patient's lacrimal sac, stabilize the lacrimal tube, prevent it from falli

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