Operating room clothing with coated fabric

• US 5,027,438 A
• Filed: 09/08/1989
• Issued: 07/02/1991
• Est. Priority Date: 12/24/1986
• Status: Expired due to Fees

• Current Assignee: Burlington Industries LLC
• Original Assignee: Burlington Industries LLC
• Inventors: Rumowicz, Edmund S., Schwarze, Charles P., Coletti, Robert M.
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US07/403,781
• Time in Patent Office: 662 Days
• Field of Search: 128/849, 2/DIG. 7, 2/51, 2/82, 2/114, 2/227, 2/228, 428/246, 428/907, 604/360
• US Class Current: 2/114
• CPC Class Codes: A41D 13/1227 with liquid-proof sleeves
• CPC Class Codes: A41D 31/305 using layered materials
• CPC Class Codes: B32B 27/02 in the form of fibres or filaments not used
• CPC Class Codes: B32B 27/12 next to a fibrous or filamentary layer
• CPC Class Codes: B32B 27/36 comprising polyesters
• CPC Class Codes: B32B 5/08 the fibres or filaments of a layer being of different substances , e.g. conjugate fibres, mixture of different fibres
• CPC Class Codes: B32B 5/26 another layer next to it also being fibrous or filamentary relative arrangement of fibres or filaments of different layers B32B5/12
• CPC Class Codes: B32B 9/02 comprising animal or vegetable substances , e.g. cork, bamboo, starch
• CPC Class Codes: B32B 9/04 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to a glass layer B32B17/06; layered products with at least two ceramic layers composed mainly of ceramic B32B18/00
• CPC Class Codes: D06M 13/463 derived from monoamines
• CPC Class Codes: D06M 13/513 with at least one carbon-silicon bond
• CPC Class Codes: D06M 16/00 Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
• CPC Class Codes: Y10S 428/907 Resistant against plant or animal attack
• CPC Class Codes: Y10T 442/3512 Three or more fabric layers

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.

Claims

1. 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.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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.

7. The composite barrier material of claim 1, in which the outer fabric has a moisture penetration of less than 20 mg/in² at 200 pounds of continuous water pressure for 30 minutes.

8. 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.

9. 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.

10. 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.

11. The composite barrier material of claim 1, substantially completely devoid of adhesive between the layers.

12. The composite barrier material of claim 1, in the form of a drapeable panel stitched together at least around its perimeter.

13. 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 R¹ is a bromine or chlorine.

14. 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.

15. The lower body garment of claim 14, in which each leg portion has an expandable, ankle-conforming cuff at the bottom thereof.

16. The lower body garment of claim 14, in which each expandable leg-conforming means is in the thigh area of each leg portion.

17. 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.

18. 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.

19. 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.

20. 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.

21. 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 R¹ is a bromine or chlorine.

22. 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.

23. 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.

24. 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.

25. 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 R¹ is a bromine or chlorine.

26. 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.

27. The surgical gown of claim 26, in which the sleeves and cuffs are constructed of the same composite barrier material as the front portion.

28. 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.

29. 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.

30. 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.

31. 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 R¹ is a bromine or chlorine.

32. 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.

33. 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 R¹ is a bromine or chlorine.

34. 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.

35. 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.

36. 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.