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Balloon punctal plug

A punctal plug and balloon technology, applied in ophthalmic surgery, medical science, prosthesis, etc., to achieve firm positioning, increased cost, and easy manufacturing

Inactive Publication Date: 2013-09-18
JOHNSON & JOHNSON VISION CARE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no one size fits all, regardless of the number of different valid sizes

Method used

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  • Balloon punctal plug
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] figure 1 The structure of the drainage system of the human eye 100 is shown. Tears are produced by the lacrimal glands (not shown) on the outside of each eye 100 . Tear fluid flows over the surface of the eye 100 to a shallow pool called the lake of tears 102, which is located at the inner or nasal ends of the upper and lower eyelids. From here, tears drain through small openings in each of the eyelids (ie, the upper punctum 104 and the lower punctum 106). From the upper punctum 104 and the lower punctum 106, tear fluid passes into the upper and lower canaliculus 108, 110, which are duct-like passages to the lacrimal sac 112, respectively. The lacrimal sac 112 is the upper swelling of the nasolacrimal duct (not shown), which drains tears into the nasal system. The upper puncta 104 and associated tubules 108 typically only drain about 10% of the tear fluid from the eye 100, so that their embolism almost never results in lacrimal overflow.

[0026] The tear fluid or t...

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PUM

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Abstract

The invention provides balloon punctal plug. A lacrimal insert such as a punctal plug may incorporate a balloon or other similar structure to facilitate anchoring of the punctal plug within the lacrimal canaliculus. The balloon may be inflated once it is positioned and deflated if removal is required or desired. The balloon may be affixed to an external portion of the punctal plug or incorporated into a chamber within the punctal plug.

Description

technical field [0001] The present invention relates to punctal plugs, and more particularly to punctal plugs, such as punctal plugs, that include an expandable and deflateable structure, such as a balloon, to anchor the punctal plug in the canaliculus. Background technique [0002] Insufficient tear fluid, or "dry eye," is a common condition that results from insufficient tear production by the lacrimal glands, which causes symptoms such as dryness, redness, burning, reflex tearing, itching, or a foreign body sensation. In particularly difficult cases of dry eye, a punctal plug or punctal plug may be placed in either or both of the puncta. Punctal plugs prevent the drainage of tears into the canaliculi, which are produced in insufficient volume by the lacrimal glands. [0003] The corner of each eye is called the canthus, which has a nasal side called the medial canthus and a temporal side called the temporal canthus. At the lower and upper lid margins of the inner canthu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/007
CPCA61F9/00772A61F2250/0003
Inventor V.拉斯特J.米勒G.耶维R.W.艾伦R.W.门迪乌斯
Owner JOHNSON & JOHNSON VISION CARE INC
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