Patent US3908645A successfully refreshed from Google Patents.
US3908645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ophthalmic pressure bandage
Assignee: 3M Co
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Filing: 1974-05-28
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Granted: 1975-09-30
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Expires: 1994-05-28
Abstract
Abstract An ophthalmic therapeutic pressure bandage comprising a conformable, permeable carrier tape including a hypoallergenic pressure-sensitive adhesive, and incorporating as a part thereof a resilient, absorbent foam pad of sufficient thickness to apply light-therapeutic pressure to the eye to prevent nictation. The resilient pad having an interlayer of absorbent non-woven web material attached to the foam layer, and a non-adherent facing bonded to said web material to prevent sticking of the pad to the tissues when the bandage is in use.
Inventors
- 👤 Timothy C Sandvig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:23
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/02; A61F13/0203; A61F13/12; A61F13/122; A61F13/124; A61F2013/00361; A61F2013/00365; A61F2013/00497; A61F2013/00982
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
45 words
AN OPHTHALMIC THERAPEUTIC PRESSURE BANDAGE COMPRISING: A. A CONFORMABLE, PERMEABLE CARRIER TAPE COMPRISING A BACKING AND A LAYER OF HYPOALLERGENIC PRESSURE-SENSITIVE ADHESIVE ON ONE SURFACE THEREOF, B. A MULTI-LAYER PAD ATTACHED TO SAID CARRIER TAPE ON THE SURFACE CARRYING THE PRESSURE-SENSITIVE ADHESIVE, SAID PAD COMPRISING:
Claim 2
Dependent Claim
45 words
AN OPHTHALMIC THERAPEUTIC PRESSURE BANDAGE COMPRISING: A. A CONFORMABLE, PERMEABLE CARRIER TAPE COMPRISING A BACKING AND A LAYER OF HYPOALLERGENIC PRESSURE-SENSITIVE ADHESIVE ON ONE SURFACE THEREOF, B. A MULTI-LAYER PAD ATTACHED TO SAID CARRIER TAPE ON THE SURFACE CARRYING THE PRESSURE-SENSITIVE ADHESIVE, SAID PAD COMPRISING:
Claim 3
Dependent Claim
16 words
AN ABSORBENT RESILIENT FOAM MATERIAL ADJACENT TO THE TAOE AND ATTACHED THERETO BY THE PRESSURE-SENSITIVE ADHESIVE,
Claim 4
Dependent Claim
16 words
AN ABSORBENT RESILIENT FOAM MATERIAL ADJACENT TO THE TAOE AND ATTACHED THERETO BY THE PRESSURE-SENSITIVE ADHESIVE,
Claim 5
Dependent Claim
18 words
The bandage in accordance with claim 1 wherein the tape backing comprises a thin layer of elastomeric foam.
Claim 6
Dependent Claim
14 words
The bandage in accordance with claim 2 wherein the elastomeric foam comprises polyvinyl chloride.
Claim 7
Dependent Claim
16 words
The bandage in accordance with claim 1 wherein the backing comprises a sheet of elastomeric foam.
Claim 8
Dependent Claim
16 words
The bandage in accordance with claim 1 wherein the tape backing comprises a thin elastomeric substrate.
Claim 9
Dependent Claim
18 words
The bandage in accordance with claim 5 wherein the backing comprises a bonded non-woven web of polyester fibers.
Claim 10
Dependent Claim
19 words
The bandage in accordance with claim 1 wherein the absorbent resilient foam material of said pad comprises open-cell foam.
Claim 11
Dependent Claim
17 words
The bandage in accordance with claim 7 wherein said foam material comprises polyurethane, polyether, polyolefin, or polyester.
Claim 12
Dependent Claim
28 words
The bandage in accordance with claim 1 wherein the non-woven web material is attached to the absorbent resilient foam material by needled-in fibers of said non-woven web material.
Claim 13
Dependent Claim
17 words
The bandage in accordance with claim 1 wherein said non-adherent facing comprises a thin, porous, thermoplastic film.
Claim 14
Dependent Claim
38 words
The bandage in accordance with claim 1 wherein the carrier tape islands the multi-layer pad leaving a sufficient pressure-sensitive adhesive area exposed surrounding the pad so as to operculate the eye socket when the bandage is in use.
Claim 15
Dependent Claim
13 words
AN INTERLAYER OF ABSORBENT NON-WOVEN WEB MATERIAL ATTACHED TO SAID FOAM MATERIAL, AND
Claim 16
Dependent Claim
13 words
AN INTERLAYER OF ABSORBENT NON-WOVEN WEB MATERIAL ATTACHED TO SAID FOAM MATERIAL, AND
Claim 17
Dependent Claim
55 words
The bandage in accordance with claim 11 wherein the exposed pressure-sensitive adhesive area of the carrier tape is covered with a release liner, said release liner extending beyond the outer edge of the carrier tape and has therein an aperture, said aperture being slightly larger than and corresponding to the shape of the multi-layer pad.
Claim 18
Dependent Claim
50 words
The bandage in accordance with claim 1 wherein the backing comprises a bonded non-woven web of polyester fibers, the absorbent resilient foam material of said pAd comprises open-cell foam and the non-woven web material is attached to the resilient open-cell foam material by needled-in fibers of the non-woven web material.
Claim 19
Dependent Claim
46 words
A POROUS, NON-ADHERENT FACING ATTACHED TO SAID WEB MATERIAL, THE MULTI-LAYER PAD BEING OF A SHAPE AND SIZE TO ANATOMICALLY CONFORM TO THE CAVITY OF THE EXTERNAL EYE AND HAVING THICKNESS SO AS TO ALLOW SUFFICIENT PRESSURE TO BE APPLIED TO AN EYE TO PREVENT NICTATION.
Claim 20
Dependent Claim
46 words
A POROUS, NON-ADHERENT FACING ATTACHED TO SAID WEB MATERIAL, THE MULTI-LAYER PAD BEING OF A SHAPE AND SIZE TO ANATOMICALLY CONFORM TO THE CAVITY OF THE EXTERNAL EYE AND HAVING THICKNESS SO AS TO ALLOW SUFFICIENT PRESSURE TO BE APPLIED TO AN EYE TO PREVENT NICTATION.
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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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |