Patent US4039390A successfully refreshed from Google Patents.
Patent US5027438A successfully refreshed from Google Patents.
US5027438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Operating room clothing with coated fabric
Assignee: Burlington Industries Inc
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Filing: 1989-09-08
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Granted: 1991-07-02
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Expires: 2009-09-08
Abstract
Abstract A system of operating room garments including two-component scrub pants with an elastic waist band and elastic bands in the mid-thigh area to define a containment zone between the two and knit cuffs at the ankle area, to be worn under a tabard for maximum protection against bacterial transmission as required and, over both, a surgical gown is worn with barrier panel sleeves and in the chest area extending from the neck to the mid-thigh area. The barrier panel composed of a bacteriostatically-treated polyester/cotton fabric sandwiched between a pair of water repellent, microporous urethane-coated fabrics or high-density woven fabrics, the composite being stitched together. The system provides the choice of garment selection depending upon the surgical procedure involved.
Inventors
- 👤 Charles P. Schwarze
- 👤 Edmund S. Rumowicz
- 👤 Robert M. Coletti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:25
CPC Classifications
D; D06; D06M; D06M16/00; A; A41; A41D; A41D13/00; A41D13/12; A41D13/1209; A41D13/1227; A41D31/00; A41D31/04; A41D31/30; A41D31/305; B; B32; B32B; B32B27/00; B32B27/02; B32B27/12; B32B27/36; B32B5/00; B32B5/02; B32B5/08; B32B5/22; B32B5/24; B32B5/26; B32B9/00; B32B9/02; B32B9/04; D06M13/00; D06M13/322; D06M13/46; D06M13/463; D06M13/50; D06M13/51; D06M13/513; Y; Y10; Y10S; Y10S428/00; Y10S428/907; Y10T; Y10T442/00; Y10T442/30; Y10T442/3472; Y10T442/3504; Y10T442/3512
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
71 words
A composite barrier material resistant to the transmission of pathogens and composed of an inner layer of fabric having an effective amount of a bacteriostatic compound thereon sandwiched between a pair of water repellent, moisture vapor permeable, microporous urethane-coated fabric outer layers each having a water repellency of at least 90 according to AATCC 22-1980 and a moisture vapor transmission of at least 600 grams per square meter per 24 hours.
Claim 2
Dependent Claim
71 words
A composite barrier material resistant to the transmission of pathogens and composed of an inner layer of fabric having an effective amount of a bacteriostatic compound thereon sandwiched between a pair of water repellent, moisture vapor permeable, microporous urethane-coated fabric outer layers each having a water repellency of at least 90 according to AATCC 22-1980 and a moisture vapor transmission of at least 600 grams per square meter per 24 hours.
Claim 3
Dependent Claim
29 words
The composite barrier material of claim 1, in which the outer layer fabric is a waterproof, water-vapor-permeable, urethane-coated fabric having a hydrostatic pressure resistance of at least 69 kPa.
Claim 4
Dependent Claim
30 words
The composite barrier material of claim 1, in which the outer layer fabric has a moisture vapor transmission rate of at least 800 grams per square meter per 24 hours.
Claim 5
Dependent Claim
25 words
The composite barrier material of claim 1, in which inner fabric is a blend of polyester and cotton at least half of which is polyester.
Claim 6
Dependent Claim
33 words
The composite barrier material of claim 3, in which the outer fabric has a hydrostatic resistance of at least 25 pounds per square inch according to Federal Test Method Standard 191A, method 5512.
Claim 7
Dependent Claim
27 words
The composite barrier material of claim 5, in which the outer fabric has a Slowinski Rain Test Value of less than 0.3 grams according to AATCC 35-1980.
Claim 8
Dependent Claim
32 words
The composite barrier material of claim 1, in which the outer fabric has a moisture penetration of less than 20 mg/in 2 at 200 pounds of continuous water pressure for 30 minutes.
Claim 9
Dependent Claim
30 words
The composite barrier material of claim 3, in which the outer fabric has a Frazier air permeability value of less than about 1 cubic foot per minute per square foot.
Claim 10
Dependent Claim
30 words
The composite barrier material of claim 8, in which the outer fabric has a Frazier air permeability value of less than about 0.5 cubic feet per minute per square foot.
Claim 11
Dependent Claim
28 words
The composite barrier material of claim 4, in which the inner fabric is woven from a spun yarn containing an intimate blend of polyester fibers and cotton fibers.
Claim 12
Dependent Claim
15 words
The composite barrier material of claim 1, substantially completely devoid of adhesive between the layers.
Claim 13
Dependent Claim
21 words
The composite barrier material of claim 1, in the form of a drapeable panel stitched together at least around its perimeter.
Claim 14
Dependent Claim
46 words
The composite barrier material of claim 1, in which the bacteriostatic compound on the inner fabric layer is a silyl quaternary ammonium compound of the formula: ##STR2## wherein R is an alkyl of 11 to 22 carbon atoms and R 1 is a bromine or chlorine.
Claim 15
Dependent Claim
103 words
A lower body garment having leg portions and comprising: a waist portion, a seat portion, a pair of leg portions, expandable leg-conforming means with each leg portion below the waist portion, and stitching connecting the waist, seat and leg portions, the garment between the waist portion and the leg-conforming means constructed of water repellent moisture vapor permeable, microporous, urethane-coated fabric, resistant to the transmission of pathogens, having water repellency of at least 90 according to AATCC 22-1980 and a moisture vapor transmission of at least 600 grams per square meter per 24 hours, the balance of the garment constructed of an antimicrobial fabric.
Claim 16
Dependent Claim
103 words
A lower body garment having leg portions and comprising: a waist portion, a seat portion, a pair of leg portions, expandable leg-conforming means with each leg portion below the waist portion, and stitching connecting the waist, seat and leg portions, the garment between the waist portion and the leg-conforming means constructed of water repellent moisture vapor permeable, microporous, urethane-coated fabric, resistant to the transmission of pathogens, having water repellency of at least 90 according to AATCC 22-1980 and a moisture vapor transmission of at least 600 grams per square meter per 24 hours, the balance of the garment constructed of an antimicrobial fabric.
Claim 17
Dependent Claim
21 words
The lower body garment of claim 14, in which each leg portion has an expandable, ankle-conforming cuff at the bottom thereof.
Claim 18
Dependent Claim
22 words
The lower body garment of claim 14, in which each expandable leg-conforming means is in the thigh area of each leg portion.
Claim 19
Dependent Claim
36 words
The lower body garment of claim 16, in which the portion between the waist and leg-conforming means is a waterproof, water-vapor permeable urethane coated microporous fabric having a hydrostatic pressure resistance of at least 69 kPa.
Claim 20
Dependent Claim
30 words
The lower body garment of claim 17, in which the water repellent fabric has a moisture vapor transmission rate of at least 800 grams per square meter per 24 hours.
Claim 21
Dependent Claim
28 words
The lower body garment of claim 14, in which the balance of the garment is a blend of polyester and cotton at least half of which is polyester.
Claim 22
Dependent Claim
33 words
The lower body garment of claim 19, in which the balance of the garment is a woven fabric woven from a spun yarn containing an intimate blend of polyester fibers and cotton fibers.
Claim 23
Dependent Claim
48 words
The lower body garment of claim 19, in which the bacteriostatic compound on the polyester and cotton blend fabric is a silyl quaternary ammonium compound of the formula: ##STR3## wherein R is an alkyl of 11 to 22 carbon atoms and R 1 is a bromine or chlorine.
Claim 24
Dependent Claim
72 words
A surgical tabard for use under a surgical gown, the tabard having a neck opening, two arm openings, bacteriostatic, antimicrobial back portion and a front portion constructed of a water repellent, moisture vapor permeable, microporous urethane coated fabric, resistant to the transmission of pathogens having a water repellency of at least 90 according to AATCC 22-1980 and a moisture vapor transmission of at least 600 grams per square meter per 24 hours.
Claim 25
Dependent Claim
72 words
A surgical tabard for use under a surgical gown, the tabard having a neck opening, two arm openings, bacteriostatic, antimicrobial back portion and a front portion constructed of a water repellent, moisture vapor permeable, microporous urethane coated fabric, resistant to the transmission of pathogens having a water repellency of at least 90 according to AATCC 22-1980 and a moisture vapor transmission of at least 600 grams per square meter per 24 hours.
Claim 26
Dependent Claim
29 words
The surgical tabard of claim 22, in which the front portion is a waterproof, water vapor permeable, urethane-coated fabric having a hydrostatic pressure resistance of at least 69 kPa.
Claim 27
Dependent Claim
33 words
The surgical tabard of claim 22, in which the fabric used to compose the garment's back portion is woven from a spun yarn containing an intimate blend of polyester fibers and cotton fibers.
Claim 28
Dependent Claim
47 words
The surgical tabard of claim 22, in which the bacteriostatic compound on the fabric of the back portion is a silyl quaternary ammonium compound of the formula: ##STR4## wherein R is an alkyl of 11 to 22 carbon atoms and R 1 is a bromine or chlorine.
Claim 29
Dependent Claim
137 words
A surgical gown having a neck opening, a pair of sleeves, an expandable cuff at the end of each sleeve, and a front portion stitched to a back portion to form the body of the surgical gown, in which at least half of the front portion from the neck downward is constructed of a composite barrier material resistant to the transmission of pathogens and composed of an inner layer of polyester/cotton blend, fabric having an effective amount of a bacteriostatic compound thereon sandwiched between a pair of water repellent, moisture vapor permeable outer fabric layers each having a water repellency of at least 90 according to AATCC 22-1980 and a moisture vapor transmission of at least 600 grams per square meter per 24 hours, the remaining portions of the gown constructed from a biostatic or bacteriostatic fabric.
Claim 30
Dependent Claim
137 words
A surgical gown having a neck opening, a pair of sleeves, an expandable cuff at the end of each sleeve, and a front portion stitched to a back portion to form the body of the surgical gown, in which at least half of the front portion from the neck downward is constructed of a composite barrier material resistant to the transmission of pathogens and composed of an inner layer of polyester/cotton blend, fabric having an effective amount of a bacteriostatic compound thereon sandwiched between a pair of water repellent, moisture vapor permeable outer fabric layers each having a water repellency of at least 90 according to AATCC 22-1980 and a moisture vapor transmission of at least 600 grams per square meter per 24 hours, the remaining portions of the gown constructed from a biostatic or bacteriostatic fabric.
Claim 31
Dependent Claim
24 words
The surgical gown of claim 26, in which the sleeves and cuffs are constructed of the same composite barrier material as the front portion.
Claim 32
Dependent Claim
26 words
The surgical gown of claim 26, in which the composite barrier material extends from the neck opening downward to at least two-thirds of the front portion.
Claim 33
Dependent Claim
33 words
The surgical gown of claim 26, in which the outer fabric has a hydrostatic pressure resistance of at least 25 pounds per square inch according to Federal Test Method Standard 191A, Method 5512.
Claim 34
Dependent Claim
27 words
The surgical gown of claim 26, in which the composite barrier material on the front portion of the gown is stitched together at least around its perimeter.
Claim 35
Dependent Claim
50 words
The surgical gown of claim 29, in which the bacteriostatic compound on the inner fabric layer of the composite barrier material is a silyl quaternary ammonium compound of the formula: ##STR5## wherein R is an alkyl of 11 to 22 carbon atoms and R 1 is a bromine or chlorine.
Claim 36
Dependent Claim
34 words
The surgical gown of claim 29, in which the inner fabric of the composite barrier material is a fabric woven from a spun yarn containing an intimate blend of polyester fibers and cotton fibers.
Claim 37
Dependent Claim
58 words
The surgical gown of claim 32, in which the bacteriostatic compound on the inner fabric layer and the bacteriostatic fabric from which the balance of the gown is constructed is a silyl quaternary ammonium compound of the formula: ##STR6## wherein R is an alkyl of 11 to 22 carbon atoms and R 1 is a bromine or chlorine.
Claim 38
Dependent Claim
193 words
In combination, a surgical operating garment system including: a lower body garment having leg portions comprising a waist portion, a seat portion, a pair of leg portions, expandable leg-conforming means with each leg portion below the waist portion, and stitching connecting the waist, seat and leg portions, the garment between the waist portion and the leg-conforming means constructed of a water-repellent moisture vapor permeable, microporous urethane coated fabric resistant to the transmission of pathogens, each having a water repellency of at least 90 according to AATCC 22-1980 and a moisture vapor transmission of at least 600 grams per square meter per 24 hours, the balance of the garment constructed of a bacteriostatic, antimicrobial fabric, and a surgical gown having a neck opening, a pair of sleeves, an expandable cuff at the end of each sleeve, and a front portion stitched to a back portion to form the body of the surgical gown, in which at least half of the front portion from the neck downward is constructed of said water repellent, moisture vapor permeable, microporous urethane coated fabric, the remaining portions of the gown constructed from a fabric having a bacteriostatic compound thereon.
Claim 39
Dependent Claim
193 words
In combination, a surgical operating garment system including: a lower body garment having leg portions comprising a waist portion, a seat portion, a pair of leg portions, expandable leg-conforming means with each leg portion below the waist portion, and stitching connecting the waist, seat and leg portions, the garment between the waist portion and the leg-conforming means constructed of a water-repellent moisture vapor permeable, microporous urethane coated fabric resistant to the transmission of pathogens, each having a water repellency of at least 90 according to AATCC 22-1980 and a moisture vapor transmission of at least 600 grams per square meter per 24 hours, the balance of the garment constructed of a bacteriostatic, antimicrobial fabric, and a surgical gown having a neck opening, a pair of sleeves, an expandable cuff at the end of each sleeve, and a front portion stitched to a back portion to form the body of the surgical gown, in which at least half of the front portion from the neck downward is constructed of said water repellent, moisture vapor permeable, microporous urethane coated fabric, the remaining portions of the gown constructed from a fabric having a bacteriostatic compound thereon.
Claim 40
Dependent Claim
30 words
The surgical operating garment system of claim 34, in which the microporous fabric is a waterproof, water-vapor permeable, urethane-coated fabric having a hydrostatic pressure resistance of at least 69 kPa.
Claim 41
Dependent Claim
38 words
The surgical operating garment system of claim 35, in which the bacteriostatic, antimicrobial fabric forming the balance of the garment is a fabric woven from a spun yarn containing an intimate blend of polyester fibers and cotton fibers.
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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) | 1994-07-01 | 1994-12-31 | 1995-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-01 | 1998-12-31 | 1999-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-01 | 2002-12-31 | 2003-07-02 | $7700.00 | Window Closed / Lapsed |