US4558093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser barrier
Assignee: Individual
•
Filing: 1984-04-30
•
Granted: 1985-12-10
•
Expires: 2004-04-30
Abstract
Abstract A laser shield consists essentially of a series of spherical glass bubbles densely packed within a range of 1.95×10 3 bubbles per cubic centimeter to 1.25×10 8 bubbles per cubic centimeter encapsulated in a matrix of silicone to provide a flexible and lightweight foam-like material to terminate CO 2 laser radiation without producing a substantial carbon plume. The glass bubbles may be filled with a gas. In another embodiment, a laser shield consists essentially of water encapsulated in a matrix of silicone to provide a flexible and lightweight material to terminate CO 2 laser radiation without producing a substantial carbon plume. In another embodiment, water bubbles and glass bubbles are both encapsulated within a matrix of silicone to provide a laser shield. A surgical drape, a surgical sponge and an endotracheal tube are formed of a flexible and lightweight material of a series of densely packed bubbles encapsulated in a matrix of silicone to terminate laser radiation.
Inventors
- 👤 John R. Hatzenbuhler
- 👤 Thomas A. Lindl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:29
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/18; A; A61; A61B; A61B46/00; A61B46/40; A61B90/00; A61B90/04; A61L; A61L31/00; A61L31/04; A61L31/06; B23; B23K; B23K26/00; B23K26/009; B23K26/18; B32B25/00; B32B25/20; B32B5/22; B32B5/24; B32B5/245; B32B5/32; C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; F; F16; F16P; F16P1/00; F16P1/06; A61B2090/049; B32B2535/00; Y; Y10; Y10S; Y10S128/00; Y10S128/21
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
36 words
A laser shield, consisting essentially of a dispersion of water in liquid droplet form encapsulated in a matrix of silicone rubber to provide a flexible material to terminate laser radiation without producing a substantial carbon plume.
Claim 2
Dependent Claim
36 words
A laser shield, consisting essentially of a dispersion of water in liquid droplet form encapsulated in a matrix of silicone rubber to provide a flexible material to terminate laser radiation without producing a substantial carbon plume.
Claim 3
Dependent Claim
63 words
A laser shield, comprising a matrix of silicone rubber, and a dispersion of densely packed bubbles encapsulated in said silicone rubber for providing protection from laser radiation, said bubbles are densely packed within a range of 1.95×10 3 bubbles per cubic centimeter to 1.25×10 8 bubbles per cubic centimeter, with at least a portion of said bubbles including water in liquid droplet form.
Claim 4
Dependent Claim
63 words
A laser shield, comprising a matrix of silicone rubber, and a dispersion of densely packed bubbles encapsulated in said silicone rubber for providing protection from laser radiation, said bubbles are densely packed within a range of 1.95×10 3 bubbles per cubic centimeter to 1.25×10 8 bubbles per cubic centimeter, with at least a portion of said bubbles including water in liquid droplet form.
Claim 5
Dependent Claim
53 words
A surgical drape, comprising a flexible and light weight sheet material to be applied adjacent to an area subject to laser radiation and formed of a dispersion of densely packed bubbles encapsulated in a matrix of silicone rubber to terminate laser radiation, said bubbles include glass bubbles and water in liquid droplet form.
Claim 6
Dependent Claim
53 words
A surgical drape, comprising a flexible and light weight sheet material to be applied adjacent to an area subject to laser radiation and formed of a dispersion of densely packed bubbles encapsulated in a matrix of silicone rubber to terminate laser radiation, said bubbles include glass bubbles and water in liquid droplet form.
Claim 7
Dependent Claim
50 words
A surgical drape, comprising a flexible and light weight sheet material to be applied adjacent to an area subject to laser radiation and formed of a dispersion of densely packed bubbles encapsulated in a matrix of silicone rubber to terminate laser radiation, said bubbles include water in liquid droplet form.
Claim 8
Dependent Claim
50 words
A surgical drape, comprising a flexible and light weight sheet material to be applied adjacent to an area subject to laser radiation and formed of a dispersion of densely packed bubbles encapsulated in a matrix of silicone rubber to terminate laser radiation, said bubbles include water in liquid droplet form.
References Cited (Backward Citations)
US3296161A
Cited
US3039001A
Cited
US3382205A
Cited
US3720836A
Cited
US4072635A
Cited
US3871739A
Cited
US4000108A
Cited
US4079162A
Cited
US4114985A
Cited
US3933712A
Cited
US4389452A
Cited
US3919136A
Cited
US3960754A
Cited
US4203886A
Cited
US4396643A
Cited
US4433069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-09 | 1989-06-10 | 1989-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-09 | 1993-06-10 | 1993-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-09 | 1997-06-10 | 1997-12-10 | $7700.00 | Window Closed / Lapsed |