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US3943575A Expired / Lapsed US ⏱️ 0.0 years remaining

Conformable surgical hood

Assignee: Boundary Healthcare Products Corp
•
Filing: 1974-04-12
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Granted: 1976-03-16
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Expires: 1994-04-12
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Abstract

Abstract A disposable surgical hood which conforms to the wearer's head, and is usable either with a traditional surgical mask alone or with such a mask in combination with a laminar air flow face plate, contains bacterial fallout from the wearer's head and helps maintain sterile conditions in hospital operating rooms.

Inventors

  • 👤 James H. Bolker

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 19:53
CPC Classifications
A; A42; A42B; A42B1/00; A42B1/04; A42B1/046; A41; A41D; A41D13/00; A41D13/05; A41D13/11; A41D13/1107; A41D13/1153

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 214 words
A conformable disposable operating room surgical hood adapted for wear with or without a face plate and exhaust system, said hood comprising two similar generally flat flexible non-woven, fluid resistant, inelastic side sections, the perimeter of each side section including a crown portion a back portion adjacent said crown portion a shoulder edge portion adjacent said back portion a lower face portion adjacent said perimeter shoulder edge portion, and an upper face portion between said lower face portion and said crown portion, said crown and back perimeter portions of said two side sections being joined together, generally centrally of said hood, an air permeable resiliently expandable inset portion joining said side section perimeter lower face portions, and resiliently expandable gathering means, secured to said side sections, said gathering means being secured to said side sections in stretched condition and tending to maintain said side sections across at least a portion of the rear thereof in gathered configuration, whereby said hood is conformable and size variable and is adapted to be worn over a face plate used with an exhaust system, said hood admitting air through said inset portion, or without such apparatus over a surgical mask alone, limiting bacterial contamination from the hood of the wearer, and tending to maintain sterile operating room conditions.
Claim 2
Dependent Claim 214 words
A conformable disposable operating room surgical hood adapted for wear with or without a face plate and exhaust system, said hood comprising two similar generally flat flexible non-woven, fluid resistant, inelastic side sections, the perimeter of each side section including a crown portion a back portion adjacent said crown portion a shoulder edge portion adjacent said back portion a lower face portion adjacent said perimeter shoulder edge portion, and an upper face portion between said lower face portion and said crown portion, said crown and back perimeter portions of said two side sections being joined together, generally centrally of said hood, an air permeable resiliently expandable inset portion joining said side section perimeter lower face portions, and resiliently expandable gathering means, secured to said side sections, said gathering means being secured to said side sections in stretched condition and tending to maintain said side sections across at least a portion of the rear thereof in gathered configuration, whereby said hood is conformable and size variable and is adapted to be worn over a face plate used with an exhaust system, said hood admitting air through said inset portion, or without such apparatus over a surgical mask alone, limiting bacterial contamination from the hood of the wearer, and tending to maintain sterile operating room conditions.
Claim 3
Dependent Claim 30 words
The surgical hood of claim 1 further providing a shoulder margin between said gathering means and said shoulder edge portion sufficiently long to be retained under the wearer's hospital gown.
Claim 4
Dependent Claim 56 words
The surgical hood of claim 1 in which said perimeter crown portion is generally convex, said perimeter back portion is generally straight, said perimeter shoulder edge portion is generally straight and at a right angle to said back portion, said perimeter lower face portion is generally straight, and said perimeter upper face portion is generally concave.
Claim 5
Dependent Claim 47 words
The surgical hood of claim 3 in which said resiliently expandable gathering means is secured to said side sections generally parallel to said perimeter shoulder edge portions and transverse to said joined perimeter back portions and spaced from said perimeter upper face portions and said inset portion.

References Cited (Backward Citations)

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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) 1979-03-16 1979-09-15 1980-03-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-03-16 1983-09-15 1984-03-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-03-16 1987-09-15 1988-03-16 $7700.00 Window Closed / Lapsed

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