US4604998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser surgery drape
Assignee: Individual
•
Filing: 1984-04-11
•
Granted: 1986-08-12
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Expires: 2004-04-11
Abstract
Abstract A layered drape apparatus useful during laser surgery protects the patient from inadvertent laser radiation damage by diffusing radiation which leaves the operative field. The apparatus includes metallic and non-metallic layers with an airspace therebetween.
Inventors
- 👤 Joseph H. Bellina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:25
CPC Classifications
A; A61; A61B; A61B90/00; A61B90/04; A61B46/00; A61B2090/049
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
83 words
A laser surgery drape for use in protecting a patient from the radiation of a medical operating laser during surgery comprising: a. a multi-layered drape that can be draped upon the patient, having at least one metallic layer adhered to at least one non-metallic fabric-like layer; and b. reflective surface means positioned to reflect laser radiation toward the metallic and non-metallic layers for diffusing any laser radiation ray which is emitted from the medical operating laser and penetrates the metallic and non-metallic layers.
Claim 2
Dependent Claim
83 words
A laser surgery drape for use in protecting a patient from the radiation of a medical operating laser during surgery comprising: a. a multi-layered drape that can be draped upon the patient, having at least one metallic layer adhered to at least one non-metallic fabric-like layer; and b. reflective surface means positioned to reflect laser radiation toward the metallic and non-metallic layers for diffusing any laser radiation ray which is emitted from the medical operating laser and penetrates the metallic and non-metallic layers.
Claim 3
Dependent Claim
68 words
The laser surgery drape of claim 1, wherein the multi-layered drape comprises: a first non-metallic layer; a pair of metallic layers fastened to the non-metallic layer so that at least one of the metallic layers provides an inner surface which faces the inner surface of the other layers defining an air space therebetween; one of the metallic reflective surfaces adhered to the inner surface of the non-metallic layer.
Claim 4
Dependent Claim
38 words
The laser surgery drape of claim 1, wherein the layers are peripherally joined so that an air space is formed between the two layers, each layer having a laser metallic reflective surface which communicates with the air space.
Claim 5
Dependent Claim
15 words
The laser surgery drape of claim 3, wherein the reflective surfaces are flexible metallic surfaces.
Claim 6
Dependent Claim
16 words
The laser surgery drape of claim 4, wherein the flexible metallic surfaces are polished, mirrored surfaces.
Claim 7
Dependent Claim
14 words
The laser surgery drape of claim 1, wherein the non-metallic layer is a fabric.
Claim 8
Dependent Claim
13 words
The laser surgery drape of claim 1, wherein the non-metallic layer is paper.
Claim 9
Dependent Claim
13 words
The laser surgery drape of claim 1, wherein the metallic layer is aluminum.
Claim 10
Dependent Claim
21 words
The laser surgery drape of claim 1, wherein the multi-layered drape provides an aperture having aperture edges which are bonded together.
Claim 11
Dependent Claim
44 words
The laser surgery drape of claim 3, further comprising an aperture having edges which are peripherally joined so that an air space is formed between the two layers which terminates at the peripheral edge of the drape and at the edges of the aperture.
Claim 12
Independent Claim
49 words
The method of protecting a patient during laser surgery from medical operating laser radiation by draping the patient's body with a laminated drape comprised of metallic and non-metallic layers including two layers which provide facing reflective surfaces with a space therebetween that can diffuse laser radiation entering the space.
Claim 13
Independent Claim
49 words
The method of protecting a patient during laser surgery from medical operating laser radiation by draping the patient's body with a laminated drape comprised of metallic and non-metallic layers including two layers which provide facing reflective surfaces with a space therebetween that can diffuse laser radiation entering the space.
Claim 14
Dependent Claim
23 words
The method of claim 11 wherein the drape of metallic and non-metallic layers respectively includes a metal foil layer and a fabric-like layer.
Claim 15
Dependent Claim
23 words
The method of claim 11 wherein the drape of metallic and non-metallic layers respectively includes a metal foil layer and a paper layer.
Claim 16
Dependent Claim
14 words
The method of claim 11 wherein the non-metallic layer is a cloth fabric layer.
Claim 17
Dependent Claim
14 words
The method of claim 11 wherein the non-metallic and metallic layers are bonded together.
Claim 18
Dependent Claim
15 words
The method of claim 11 wherein the medical laser is a medical carbon dioxide laser.
Claim 19
Dependent Claim
14 words
The method of claim 11 wherein the medical laser is a Nd:YAG type laser.
Claim 20
Dependent Claim
13 words
The method of claim 11 wherein the medical laser is an Argon laser.
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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) | 1989-08-11 | 1990-02-10 | 1990-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-11 | 1994-02-10 | 1994-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-11 | 1998-02-10 | 1998-08-12 | $7700.00 | Window Closed / Lapsed |