US4504977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable zoned surgical gown
Assignee: Procter and Gamble Co
•
Filing: 1983-04-29
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Granted: 1985-03-19
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Expires: 2003-04-29
Abstract
Abstract A surgical gown comprises a body covering portion and sleeves, the body covering portion having a front portion and side portions. The front portion has a central operative region having a water impermeable material layer covering the central operative region. Each of the sleeves has a zone comprising a layer of a base sleeve material and a layer of a water-repellant, air-porous nonwoven fabric web. The web provides enhanced water repellency to the sleeve zones compared to that provided by the base sleeve material alone.
Inventors
- 👤 Mary K. King
- 👤 Roger N. White
- 👤 Paul E. Gregory, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:30
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/12; A41D13/1209; A41D13/1227
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
142 words
A surgical gown comprising a body covering portion and sleeves, said body covering portion comprising a base gown material and having a front portion and side portions, said front portion having a central operative region with a water-impermeable material layer covering said central operative region, each of said sleeves having a wrist end, an elbow area, and a shoulder end where said sleeve is attached to said body covering portion, said each sleeve having a zone which extends from a lower end proximate said wrist end of said sleeve to an upper end above said elbow area of said sleeve, said sleeve zone comprising a layer of a base sleeve material and a layer of a water-repellant, air-porous nonwoven fabric web, whereby said web provides enhanced water repellency to said sleeve zone compared to that provided by said base sleeve material alone.
Claim 2
Dependent Claim
142 words
A surgical gown comprising a body covering portion and sleeves, said body covering portion comprising a base gown material and having a front portion and side portions, said front portion having a central operative region with a water-impermeable material layer covering said central operative region, each of said sleeves having a wrist end, an elbow area, and a shoulder end where said sleeve is attached to said body covering portion, said each sleeve having a zone which extends from a lower end proximate said wrist end of said sleeve to an upper end above said elbow area of said sleeve, said sleeve zone comprising a layer of a base sleeve material and a layer of a water-repellant, air-porous nonwoven fabric web, whereby said web provides enhanced water repellency to said sleeve zone compared to that provided by said base sleeve material alone.
Claim 3
Dependent Claim
32 words
The surgical gown of claim 1 wherein said water-repellant, air-porous nonwoven fabric web is a web of microfine hydrophobic fibers, said fibers having a fiber diameter of up to about 10 microns.
Claim 4
Dependent Claim
15 words
The surgical gown of claim 2 wherein said nonwoven fabric web is a melt-blown web.
Claim 5
Dependent Claim
54 words
The surgical gown of claim 1 wherein said nonwoven fabric web has a liquid strikethrough resistance of at least about 200 mm H 2 O and an air porosity of at least about 100 l/sec/m 2 , and said base gown material and said base sleeve material are a water-repellent, abrasion-resistant nonwoven fabric laminate.
Claim 6
Dependent Claim
51 words
The surgical gown of claim 2 wherein said nonwoven fabric web has a liquid strikethrough resistance of at least about 250 mm H 2 O, an air porosity of at least about 250 l/sec/m 2 and a basis weight of from about 10 g/m 2 to about 30 g/m 2 .
Claim 7
Dependent Claim
51 words
The surgical gown of claim 3 wherein said melt-blown web has a liquid strikethrough resistance of at least about 380 mm H 2 O, an air porosity of at least about 400 l/sec/m 2 , and a basis weight of from about 10 g/m 2 to about 30 g/m 2 .
Claim 8
Dependent Claim
16 words
The surgical gown of claim 1 wherein said water-impermeable film is an ethylene methylacrylate polymer film.
Claim 9
Dependent Claim
16 words
The surgical gown of claim 6 wherein said water-impermeable film is an ethylene methylacrylate polymer film.
Claim 10
Dependent Claim
20 words
The surgical gown of claim 7 wherein said ethylene methylacrylate polymer film is less than about 0.13 mm in thickness.
Claim 11
Dependent Claim
24 words
The surgical gown of claim 8 wherein said ethylene methacrylate film is from about 0.01 mm in thickness to about 0.05 mm in thickness.
Claim 12
Dependent Claim
32 words
The surgical gown of claim 6 wherein said base gown material and said base sleeve material are nonwoven fabric laminate having an air porosity of at least about 200 l/sec/m 2 .
Claim 13
Dependent Claim
33 words
The surgical gown of claim 5 wherein said base gown material and said base sleeve material are water-repellent nonwoven fabric laminate having an air porosity of at least about 250 l/sec/m 2 .
Claim 14
Dependent Claim
32 words
The surgical gown of claim 7 wherein said base gown material and said base sleeve material are nonwoven fabric laminate having an air porosity of at least about 250 l/sec/m 2 .
Claim 15
Dependent Claim
32 words
The surgical gown of claim 8 wherein said base gown material and said base sleeve material are nonwoven fabric laminate having an air porosity of at least about 250 l/sec/m 2 .
Claim 16
Dependent Claim
38 words
The surgical gown of claim 11 wherein said nonwoven fabric laminate has a liquid strikethrough resistance of at least about 150 mm H 2 O and a basis weight of no more than about 85 g/m 2 .
Claim 17
Dependent Claim
38 words
The surgical gown of claim 14 wherein said nonwoven fabric laminate has a liquid strikethrough resistance of at least about 150 mm H 2 O and a basis weight of no more than about 60 g/m 2 .
Claim 18
Dependent Claim
26 words
The surgical gown of claim 16 wherein said melt-blown web has a basis weight of from about 15 g/m 2 to about 25 g/m 2 .
Claim 19
Dependent Claim
44 words
The surgical gown of claim 1 wherein said layer of base sleeve material is an outer layer, and wherein said sleve zone further comprises an inner layer of sleeve lining material such that said sleeve lining material provides enhanced strength to said sleeve zone.
Claim 20
Dependent Claim
44 words
The surgical gown of claim 6 wherein said layer of base sleeve material is an outer layer, and wherein said sleeve zone further comprises an inner layer of sleeve lining material such that said sleeve lining material provides enhanced strength to said sleeve zone.
Claim 21
Dependent Claim
44 words
The surgical gown of claim 15 wherein said layer of base sleeve material is an outer layer, and wherein said sleeve zone further comprises an inner layer of sleeve lining material such that said sleeve lining material provides enhanced strength to said sleeve zone.
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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) | 1988-03-18 | 1988-09-17 | 1989-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-18 | 1992-09-17 | 1993-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-18 | 1996-09-17 | 1997-03-19 | $7700.00 | Window Closed / Lapsed |