US5522837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nasolacrimal duct occlusion device and method
Assignee: Individual
•
Filing: 1994-06-17
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Granted: 1996-06-04
•
Expires: 2014-06-17
Abstract
Abstract A method and device for nasolacrimal duct occlusion during eye medication provides a device having a pair of joined legs terminating in angled elements for fitting into the medial canthal area and compressing the nasolacrimal ducts. The device is placed over the nasal bridge during, and for a short time after, eye medication.
Inventors
- 👤 Mark A. Latina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:57
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/122; A61B17/1227; A61F; A61F5/00; A61F5/01; A61F5/08; A61F9/00; A61F9/0008; A61F9/0017; A61F9/007; A61F9/00772
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
102 words
A device for occluding the nasolacrimal ducts, comprising, a pair of contact elements formed to fit into the medial canthal area and compress the nasolacrimal ducts of the eyes, a pair of leg elements extendible down each side of the nose, one of said contact elements mounted on the end of each leg element, said contact elements being spaced apart a distance approximately equal to the distance between adjoining medial canthal areas of the user and cross piece means for joining said pair of leg elements, said cross piece means including means for pressing said device down to compress the nasolacrimal ducts.
Claim 2
Independent Claim
102 words
A device for occluding the nasolacrimal ducts, comprising, a pair of contact elements formed to fit into the medial canthal area and compress the nasolacrimal ducts of the eyes, a pair of leg elements extendible down each side of the nose, one of said contact elements mounted on the end of each leg element, said contact elements being spaced apart a distance approximately equal to the distance between adjoining medial canthal areas of the user and cross piece means for joining said pair of leg elements, said cross piece means including means for pressing said device down to compress the nasolacrimal ducts.
Claim 3
Dependent Claim
19 words
The device of claim 1 wherein said leg elements comprise a hard core with a coating of soft material.
Claim 4
Dependent Claim
36 words
The device of claim 1 further including tubular elements mounted on said leg elements, having an entrance for eye medication and an exit for application of the eye medication to the eye at a predetermined location.
Claim 5
Dependent Claim
28 words
The device of claim 1 further including temple elements mounted on said leg elements, for securing said joined pair of leg elements to the ears of a user.
Claim 6
Dependent Claim
34 words
The device of claim 1 wherein each of said pair of bulbous elements form a contact surface for contacting said medial canthal area, said contact surface oriented to maximize occlusion of the nasolacrimal ducts.
Claim 7
Independent Claim
135 words
A device for occluding the nasolacrimal ducts, comprising, a pair of leg elements extendible down each side of the nose, one end of each of said leg elements forming a contact surface formed to fit into the medial canthal area and compress the nasolacrimal ducts of the eyes, said contact surfaces being at angles to the forward axis of the nose corresponding to the angular relationship of the nasolacrimal ducts to the forward axis of the nose, said contact surfaces being spaced apart a distance approximately equal to the distance between adjoining medial canthal areas of the nose, and cross piece means for joining said pair of leg elements at the other end of said pair of leg elements, said cross piece means including means for pressing said device down to compress said nasolacrimal ducts.
Claim 8
Independent Claim
135 words
A device for occluding the nasolacrimal ducts, comprising, a pair of leg elements extendible down each side of the nose, one end of each of said leg elements forming a contact surface formed to fit into the medial canthal area and compress the nasolacrimal ducts of the eyes, said contact surfaces being at angles to the forward axis of the nose corresponding to the angular relationship of the nasolacrimal ducts to the forward axis of the nose, said contact surfaces being spaced apart a distance approximately equal to the distance between adjoining medial canthal areas of the nose, and cross piece means for joining said pair of leg elements at the other end of said pair of leg elements, said cross piece means including means for pressing said device down to compress said nasolacrimal ducts.
Claim 9
Dependent Claim
19 words
The device of claim 6 including a pair of handles extending from opposite ends of said cross piece means.
Claim 10
Dependent Claim
26 words
The device of claim 7 wherein said device is made of material sufficiently elastic that squeezing said pair of handles together spreads apart said contact surfaces.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-06-04 | 1999-12-04 | 2000-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-06-04 | 2003-12-04 | 2004-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-06-04 | 2007-12-04 | 2008-06-04 | $7700.00 | Window Closed / Lapsed |