US4735623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser barrier
Assignee: Individual
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Filing: 1986-04-02
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Granted: 1988-04-05
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Expires: 2006-04-02
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
2026-10-23 19:29
CPC Classifications
F; F16; F16P; F16P1/00; F16P1/06; A; A61; A61B; A61B46/00; A61B46/40; A61B90/00; A61B90/04; A61L; A61L31/00; A61L31/04; A61L31/06; B; B23; B23K; B23K26/00; B23K26/009; B23K26/18; B32; B32B; B32B5/00; B32B5/18; C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; A61B2090/049
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
62 words
A surgical sponge, comprising a flexible and light weight sheet-like material composed 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 bubbles, and means connected to said laser terminating material for providing a sponge-like surface to be applied adjacent to an area subjected to laser radiation.
Claim 2
Dependent Claim
62 words
A surgical sponge, comprising a flexible and light weight sheet-like material composed 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 bubbles, and means connected to said laser terminating material for providing a sponge-like surface to be applied adjacent to an area subjected to laser radiation.
Claim 3
Dependent Claim
26 words
The surgical sponge of claim 1, wherein said sponge-like surface means includes a sheet-like sponge connected to a first side of said sheet-like laser terminating material.
Claim 4
Dependent Claim
35 words
The surgical sponge of claim 2, wherein said sponge-like surface means includes a second sheet-like spong connected to a second side of said sheet-like laser terminating material which is oppositely disposed to said first side.
Claim 5
Dependent Claim
29 words
The surgical sponge of claim 1, wherein 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.
Claim 6
Dependent Claim
59 words
A surgical sponge, comprising a flexible and light weight sheet-like material composed of a dispersion of densely packed bubbles encapsulated in a matrix of silicone rubber to terminate laser radiation, said bubbles include water bubbles, and means connected to said laser terminating material for providing a sponge-like surface to be applied adjacent to an area subjected to laser radiation.
Claim 7
Dependent Claim
59 words
A surgical sponge, comprising a flexible and light weight sheet-like material composed of a dispersion of densely packed bubbles encapsulated in a matrix of silicone rubber to terminate laser radiation, said bubbles include water bubbles, and means connected to said laser terminating material for providing a sponge-like surface to be applied adjacent to an area subjected to laser radiation.
Claim 8
Dependent Claim
26 words
The surgical sponge of claim 5, wherein said sponge-like surface means includes a sheet-like sponge connected to a first side of said sheet-like laser terminating material.
Claim 9
Dependent Claim
34 words
The surgical sponge of claim 6, wherein said sponge-like surface means includes a sheet-like sponge connected to a second side of said sheet-like laser terminating material which is oppositely disposed to said first side.
Claim 10
Dependent Claim
28 words
The surgical sponge of claim 5, wherein 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.
Claim 11
Dependent Claim
14 words
The surgical sponge of claim 1, and including a gas within said glass bubbles.
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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) | 1991-04-05 | 1991-10-05 | 1992-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-05 | 1995-10-05 | 1996-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-05 | 1999-10-05 | 2000-04-05 | $7700.00 | Window Closed / Lapsed |